Synthesis, structural characterization, electrochemical and photocatalytic properties of vanadium complex anchored on reduced graphene oxide
Diazonium coupling; Functionalized rGO; Vanadium Schiff base complex
In this work, vanadium complex anchored reduced graphene oxide (rGO-VO) was successfully synthesized by coordination interaction with phenyl azo salicylaldehyde (PAS) coupled trimethoxy silyl propanamine (TMSPA). The physicochemical and microscopic properties of rGO-VO were studied with different analytical techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, Scanning electron microscopy (SEM), and Transmission electron microscopy (TEM) which confirmed the synthesis of rGO-VO. The electrochemical studies of rGO-VO in glassy carbon electrode demonstrated high current density because of the amazing electrochemical properties of rGO. The photocatalytic studies of anchored rGO-VO and VO(acac)2 toward MB dye indicated that anchored rGO-VO with visible light irradiated MB was degraded fast as compared to VO(acac)2. 2021 Taylor & Francis Group, LLC.
Inorganic and Nano-Metal Chemistry, Vol-52, No. 6, pp. 881-889.
Jose J., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, India; Puthanveettil Balakrishnan S., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, India
Is it morally justified to create disabled designer babies?
Auditory impairment; Designer babies; Genetic technologies; Kant and designer babies; Morality of impairments and enhancements
This research paper explores the questionwhether it is morally permissible for an auditory impaired parent to create an auditory impaired offspring? It makes an epistemological inquiry into the experiences of persons with auditory impairments to make an informed decision on the question at stake. There is a general attitudinal bias against the disability. On the contrary, arguments have been raised that a parent with auditory impairment may have a moral right and a liberty to have a specially designed deaf baby. It is argued that a deaf parents desire to have a deaf child, stems from their need to relate linguistically and culturally with the child. It is also in the best interest of the child and the parent. Such arguments seem grossly misguided and are often countered with arguments of open future, and the costs of disability. This research paper seeks to inquire into the epistemic challenges in examining the validity and the soundness of these arguments. It engages into the arguments and counter arguments with respect to whether auditory impairment is a disadvantageous condition to find that deafness does involve an element of harm though it is not only and only harm. It argues against the proposition that laws permitting abortion in case of foetal anomaly are eugenic. It uses Kantian theory to delve into the moral permissibility of the use of genetic engineering for the creation of impairment and enhancement. In the light of moral, ethical and jurisprudential considerations it finds that it is morally impermissible to use genetic interventions to create impairments or enhancements, as it strikes at the humanity in the designer babies and uses them as a means for the satisfaction of desires. 2021, The Author(s), under exclusive licence to O.P. Jindal Global University (JGU).
Jindal Global Law Review, Vol-12, No. 2, pp. 311-335.
Springer Science and Business Media B.V.
https://doi.org/10.1007/s41020-021-00152-7 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117528408&doi=10.1007%2fs41020-021-00152-7&partnerID=40&md5=5b9c92eddef0330de97cba4d62c35f5a
Dev S.I., Christ University, Bengaluru, India
Probing the effect of newly synthesized phenyltrimethylammonium tetrachloroaluminate ionic liquid as an inhibitor for carbon steel corrosion
AFM; Carbon steel; Density functional theory; EIS; Inhibitor; Ionic liquid
The corrosion protection effect of phenyltrimethylammoniumtetrachloroaluminate[PTMA]+[AlCl4]?as an inhibitor was explored in the present work. In this paper, the authors have explored a non-heterocyclicbased ionic liquid as a corrosion inhibitor for metal protection in the acid cleaning process of metal. In particular, a negative ion is designed based onthe lewis acid concept by which it could cover the maximum surface by the bigger molecule size. The inhibition efficiency was found to be steadily increasing as the concentration of the [PTMA]+[AlCl4]? ionic liquids increased.These studies revealed thatthe inhibitor exhibited a remarkable potential for corrosion protection on carbon steel in 1 N HCl solution. Stable corrosion protection efficiency (96%) was achieved for 1.3 mMof inhibitor. The adsorption of the inhibitive molecule was studied by Langmuir adsorption isotherm. The anti-corrosion effect of ionic liquid on the surface protection was revealed by scanning electron microscope (SEM)and lower surface roughness attained at an optimum concentration of inhibitor in atomic force microscope (AFM) analysis. In this study, with the view of the experimental and theoretical investigation (gaseous and aqueous forms of [PTMA]+[AlCl4]? ionic liquid in presence of HCl)was investigated, and finding deduced that the ionic liquid offered maximum dispenses with the heterocyclic group. In addition, to validate the experimental result, dynamic simulation studies were performed in both gaseous and liquid stimulation conditions. 2021 The Author(s)
Kannan P.; Varghese A.; Palanisamy K.; Abousalem A.S.
https://doi.org/10.1016/j.apsadv.2021.100150 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115997884&doi=10.1016%2fj.apsadv.2021.100150&partnerID=40&md5=2c631ae893e7f9d40c34e89ba74da609
Kannan P., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560 029, Karnataka, India, Corrosion Research Lab, HP Green R&D Centre, HPCL, Devanagundi, Bengaluru, 560 067, Karnataka, India; Varghese A., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560 029, Karnataka, India; Palanisamy K., Department of Chemistry, Srinivasan College of Arts and Science (Affiliated to Bharathidasan University- Trichy), Perambalur, 621 212, Tamil Nadu, India; Abousalem A.S., Chemistry Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt, Quality Control Lab, Operations Department, Jotun, Egypt
High-performance reconfigurable FET for a simple variable gain buffer amplifier design
buffer amplifier; CSDA; OTA; SG-RFET; strained silicon
Design and simulation of variable gain analog buffer amplifier using single gate reconfigurable field-effect transistor (SG-RFET) with strained silicon channel are proposed. The design simplicity makes SG-RFET device a potential candidate compared to the multi-gate RFET devices. The gain of the proposed configuration is varied by tuning the feedback voltage. The voltage gain of the proposed configuration can be tuned from 0.97V/V to 5V/V with an output load of 1 k?. The operational transconductance amplifier (OTA) using the SG-RFET device is used in the proposed buffer amplifier design. 2021 Informa UK Limited, trading as Taylor & Francis Group.
Jayachandran R.; Komaragiri R.S.; P C S.; R R.
International Journal of Electronics, Vol-109, No. 1, pp. 100-118.
Jayachandran R., Department of Electronics and Communication, National Institute of Technology Calicut, Kerala, Kozhikode, India, Department of Electronics and Communication, The National Institute of Engineering, Karnataka, Mysore, India; Komaragiri R.S., Department of Electronics and Communication, Bennett University, Greater Noida, India; P C S., Department of Electronics and Communication, National Institute of Technology Calicut, Kerala, Kozhikode, India; R R., Department of Electronics and Communication Engineering, School of Engineering and Technology, CHRIST (Deemed to be University}, Bangalore, India
Privacy breach perceptions and litigation intentions: Evidence from e-commerce customers
Complexity; Litigation; Litigation intentions; Privacy breach; Privacy control beliefs; Self efficacy
This paper examines the formation of litigation intentions among e-commerce customers under the privacy breach due to the influence of antecedents such as vulnerability, social risk, privacy dispositions, effectiveness privacy policy, awareness of data management and moderators such as privacy control beliefs, efficacy in coping and litigation complexity. A structural equation modelling analysis revealed that reasons for privacy breach perceptions are customer dispositions about privacy, anticipated vulnerability due to privacy breach, and social risk related to personal information disclosure. The control beliefs and coping skills of customers under privacy threat positively moderate litigation intentions. Similarly, the task complexity of litigation significantly reduces litigation intentions. 2021
G R.; V G.; Dinesh K.G.S.; Asokan-Ajitha A.; Jose A.
IIMB Management Review, Vol-33, No. 4, pp. 322-336.
https://doi.org/10.1016/j.iimb.2021.11.001 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122372942&doi=10.1016%2fj.iimb.2021.11.001&partnerID=40&md5=49ff675f4f798f651be68c41a28a7c87
G R., Amrita School of Business, Amrita Vishwa Vidyapeetham, Kerala, Kochi, India; V G., Amrita School of Business, Amrita Vishwa Vidyapeetham, Kerala, Kochi, India; Dinesh K.G.S., Amrita School of Business, Amrita Vishwa Vidyapeetham, Kerala, Kochi, India; Asokan-Ajitha A., Indian Institute of Management Amritsar, Punjab, Amritsar, India; Jose A., Department of Professional Studies, Christ University, Bangalore, India
Stability and statistical analysis on melting heat transfer in a hybrid nanofluid with thermal radiation effect
Dual solutions; hybrid nanofluid; melting heat transfer; sensitivity analysis; stability analysis
The dual solutions for the stagnation point flow in a cobaltCeO2/kerosene hybrid nanofluid with melting heat transfer and thermal radiation are analyzed. The partial differential equations are solved by the conversion of the partial differential equations into nonlinear ordinary differential equations by utilizing suitable scaling group transformations. Numerical solutions are obtained by employing the built-in function in the MATLAB software (bvp4c). Physically recoverable solutions are found employing stability analysis. The factor variables of interest (melting parameter, the nanoparticle volume fraction of cobalt and CeO2) are then further analyzed by utilizing the sensitivity analysis (based on the response surface methodology model) for heat transfer rate, as well as the skin friction coefficient. It is found that the heat transfer and skin friction tend to be significantly higher in a hybrid nanofluid due to the radiation and melting heat transfer. The lower branch is found to be unstable, whereas the upper branch is found to be stable. Also, the heat transfer rate and skin friction coefficient are found to be negatively sensitive toward the melting parameter. The model in this study can be applied for microscopic propulsion systems and the nano-electromechanical systems integrated with a nano-based system. IMechE 2021.
Md Basir M.F.; Mackolil J.; Mahanthesh B.; Nisar K.S.; Muhammad T.; Anuar N.S.; Bachok N.
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, Vol-235, No. 6, pp. 2129-2140.
Md Basir M.F., Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, Johor, Malaysia; Mackolil J., Department of Mathematics, CHRIST (Deemed to be University), Bangalore, India; Mahanthesh B., Department of Mathematics, CHRIST (Deemed to be University), Bangalore, India; Nisar K.S., Department of Mathematics, College of Arts and Sciences, Prince Sattam bin Abdulaziz University, Saudi Arabia; Muhammad T., Department of Mathematics, College of Sciences, King Khalid University, Abha, Saudi Arabia; Anuar N.S., Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, Selangor, Malaysia; Bachok N., Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, Selangor, Malaysia, Department of Mathematics & Statistics, Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia
Dry Sliding Friction and Wear Performance of HVOF Sprayed WCCo Coatings Deposited on Aluminium Alloy
Al6061 alloy; Friction and wear; Hardness; HVOF coatings; WCCo
The tribological behaviour of WCCo Cermet coatings coated on Al6061 alloy was studied in this work. WCCo Cermet coatings have been coated with different thicknesses by changing the amount of the cobalt using HVOF (High velocity oxy fuel technique). The coatings produced have been subjected to microhardness, friction and wear testing. A disc and pin type machine has been used for assessing friction and wears characteristics. The influence on tribological performance of coating thickness and cobalt levels was examined and compared with aluminium alloy. WCCo coating enhanced hardness by 34% and 42% in 100 and 200 micron thicknesses respectively, compared to aluminium alloy. The wear rate and the coefficient of friction are decreased by 48 and 12%, respectively, compared to uncoated aluminium alloy. Both coatings and substrates increase their wear rate and friction coefficient (COF) with the increase in load and sliding speed. Scanning Electron and Confocal microscopy examinations of worn surfaces were carried out to evaluate coating wear processes. 2021, The Institution of Engineers (India).
Pradeep Kumar G.S.; Keshavamurthy R.; Umesh V.; Tambrallimath V.; Yadav Y.; Toufeeq T.; Arun S.
Journal of The Institution of Engineers (India): Series D, Vol-102, No. 2, pp. 331-344.
https://doi.org/10.1007/s40033-021-00282-1 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114632803&doi=10.1007%2fs40033-021-00282-1&partnerID=40&md5=ed562ddaccfb03ccdcfe7a8aa1185d46
Pradeep Kumar G.S., Department of Mechanical and Automobile Engineering, CHRIST (Deemed to be University), Bangalore, India; Keshavamurthy R., Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bangalore, India; Umesh V., Department of Mechanical and Automobile Engineering, CHRIST (Deemed to be University), Bangalore, India; Tambrallimath V., Department of Automobile Engineering, Dayananda Sagar College of Engineering, Bangalore, India; Yadav Y., Department of Mechanical and Automobile Engineering, CHRIST (Deemed to be University), Bangalore, India; Toufeeq T., Department of Mechanical and Automobile Engineering, CHRIST (Deemed to be University), Bangalore, India; Arun S., Department of Mechanical and Automobile Engineering, CHRIST (Deemed to be University), Bangalore, India
Heat transfer of nanomaterial over an infinite disk with marangoni convection: A modified fouriers heat flux model for solar thermal system applications
Disk; Marangoni convection; Modified Fourier heat flux law; Nanofluid; Solar thermal exchangers; Thermal energy modulations
The demand for energy due to the population boom, together with the harmful consequences of fossil fuels, makes it essential to explore renewable thermal energy. Solar Thermal Systems (STSs) are important alternatives to conventional fossil fuels, owing to their ability to convert solar thermal energy into heat and electricity. However, improving the efficiency of solar thermal systems is the biggest challenge for researchers. Nanomaterial is an effective technique for improving the efficiency of STSs by using nanomaterials as working fluids. Therefore, the present theoretical study aims to explore the thermal energy characteristics of the flow of nanomaterials generated by the surface gradient (Marangoni convection) on a disk surface subjected to two different thermal energy modulations. Instead of the conventional Fourier heat flux law to examine heat transfer characteristics, the CattaneoChristov heat flux (Fouriers heat flux model) law is accounted for. The inhomogeneous nanomaterial model is used in mathematical modeling. The exponential form of thermal energy modulations is incorporated. The finite?difference technique along with Richardson extrapolation is used to treat the governing problem. The effects of the key parameters on flow distributions were analyzed in detail. Numerical calculations were performed to obtain correlations giving the reduced Nusselt number and the reduced Sherwood number in terms of relevant key parameters. The heat transfer rate of solar collectors increases due to the Marangoni convection. The thermophoresis phenomenon and chaotic movement of nanoparticles in a working fluid of solar collectors enhance the temperature distribution of the system. Furthermore, the thermal field is enhanced due to the thermal energy modulations. The results find applications in solar thermal exchanger manufacturing processes. 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Basavarajappa M.; Lorenzini G.; Narasimhamurthy S.; Albakri A.; Muhammad T.
Applied Sciences (Switzerland), Vol-11, No. 24
https://doi.org/10.3390/app112411609 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120805767&doi=10.3390%2fapp112411609&partnerID=40&md5=c4602789dd70a8fab689feb50c9467a9
Basavarajappa M., Center for Mathematical Needs, Department of Mathematics, CHRIST (Deemed to be University), Bengaluru, 560029, India; Lorenzini G., Department of Engineering and Architecture, University of Parma, Parco Area Delle Scienze 181/A, Parma, 43124, Italy; Narasimhamurthy S., Department of Mathematics, MS Ramaiah Institute of Technology, Bengaluru, 560054, India; Albakri A., Department of Computer Science, College of Computer Science & Information Technology, Jazan University, Jazan, 45142, Saudi Arabia; Muhammad T., Department of Mathematics, College of Sciences, King Khalid University, Abha, 61413, Saudi Arabia
Tuning of the surface structure of silver nanoparticles using Gum arabic for enhanced electrocatalytic oxidation of morin
Carbon paste electrode; Electro-oxidation; Gum arabic; Morin; Silver nanoparticles
Gum arabic stabilized silver nanoparticles have been used to modify carbon paste electrodes (AgNPs-GA/CPE) for the electrochemical sensing of morin, a flavanoid. The synthesized nanoparticles, before and after modification of electrodes were characterized by UVvisible spectroscopy, X-ray diffraction (XRD), fourier transformation infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS), zeta potential measurements, and thermogravimetric analysis (TGA). The uniform-sized spherical silver nanoparticles have particle sizes less than 10 nm. AgNPs-GA/CPE electrode has shown excellent electrocatalytic activity towards the oxidation of morin at a potential of 0.14 V. The factors influencing the electrochemical determination of morin such as the effect of pH, the effect of scan rate, and the effect of concentration were studied in detail. The linear dynamic range was found to be 0.65 nM to 7.0 nM with a detection limit of 0.216 nM. The developed sensor has been successfully applied for the determination of morin in mulberry leaves and almonds. 2021 The Author(s)
Agnihotri A.S.; M N.; Rison S.; B A.K.; Varghese A.
https://doi.org/10.1016/j.apsadv.2021.100181 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122630687&doi=10.1016%2fj.apsadv.2021.100181&partnerID=40&md5=156d70a2e030349495eb520b843208c0
Agnihotri A.S., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560 029, India; M N., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560 029, India; Rison S., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560 029, India, Christ Academy Institute for Advanced Studies, Christ Nagar, Bangalore, 560083, India; B A.K., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560 029, India; Varghese A., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560 029, India
Radiative heat transport and unsteady flow in an irregular channel with aggregation kinematics of nanofluid
aggregation of nanoparticles; irregular channel; magnetic field; nanofluid; partial differential equations; thermal radiation
In this study, an unsteady free convective heat transfer and the laminar flowof incompressible nanoliquid in a wavy channel subjected to the nanoparticles aggregation effects were studied. For the investigation, ethylene glycol-based nanofluid with titania nanoparticles was used. Here, the role of the nanoparticle aggregation, thermal radiation, applied magnetic field, and internal heat absorption is examined. A semi-analytical solution of the complicated partial differential equation is obtained by the method of regular perturbation. The effect of several parameters on velocity and temperature profile has been studied. In addition, Nusselt number (Nu) and skin friction (Formula presented.) are also examined and analyzed with the help of graphs. It has been observed that the velocity profile enhances with aggregation effect than without aggregation effect. The aggregation effects are minimal for smaller volume fraction of nanoparticles. A reverse trend near the wavy wall is visible for all parameters. The magnitude of velocity decreased as an effect of the applied magnetic field, whilethe magnitude of velocity increased due to radiative heat flux. Furthermore, the heat sink mechanism reduces the magnitude of the nanofluid temperature. 2021 Wiley Periodicals LLC
Heat Transfer, Vol-51, No. 1, pp. 223-238.
https://doi.org/10.1002/htj.22304 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113302766&doi=10.1002%2fhtj.22304&partnerID=40&md5=40a6b2257c50dce3e8168ff3948c6ffe
Jestine S., Center for Mathematical Needs, Department of Mathematics, CHRIST (Deemed to be University), Bangalore, Karnataka, India; Mahanthesh B., Center for Mathematical Needs, Department of Mathematics, CHRIST (Deemed to be University), Bangalore, Karnataka, India
Covid-19 diplomacy; India-US; Indo-Pacific; Quad; Soft power; Vaccine diplomacy
Quadrilateral Security Dialogue comprises a group of countries the US, Japan, Australia, and India, that started maritime collaboration in the wake of the 2004 Indian Ocean Tsunami. The initiative lasted for a brief period before falling apart in 2008. The countries re-banded together in 2017 to consult on ensuring greater security and prosperity in a free and open Indo-Pacific region, and a rules-based order. During the Covid-19 pandemic, the group has been partnering on soft security aspects such as vaccine development and distribution. The paper suggests that this allows the group to become first movers in the areas of specific functional challenges. This paper looks at the role of health diplomacy in the region as a soft power tool. The theory is based on the works of Professor Joseph Nye who first coined the term 'soft power'. It focuses on the role of India in strategic altruism to enhance Quad's strategic influence in the region. Expanding global vaccine supply is an example of reaching out to low- and middle-income countries. The paper argues that enhancing such cooperative mechanisms will allow Quad to balance its cooperative and competitive outlook in the region, linking its security with prosperity and development objectives. 2021
All Open Access; Gold Open Access; Green Open Access
https://doi.org/10.1016/j.resglo.2021.100069 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119999825&doi=10.1016%2fj.resglo.2021.100069&partnerID=40&md5=c10963472e828c6ec16dcd944a1748ac
Upadhyay S., Christ (Deemed to be) University, Bangalore, India
A unifying computational framework for fractional Gross-Pitaevskii equations
caputo derivative; gross-pitaevskii equations; laplace transform; q-homotopy analysis method
This paper concerns investigating the complex behaviour of the special case of Schringer equation called Gross-Pitaevskii (GP) equations using -homotopy analysis transform method (-HATM) with fractional order. Based on denticity function and different initial conditions, we consider three different examples to demonstrate the proficiency of -HATM. We consider different initial conditions for the hired system and the projected method is elegant unification of -homotopy analysis algorithm and Laplace transform. Further, the physical natures of the achieved results have been captured for change in space, time, homotopy parameter and fractional order in terms of contour and surface plots, and the accuracy is presented with the numerical study. The obtained results conclude that, the hired technique is highly methodical, easy to implement and accurate to examine the behaviour of the nonlinear equations of both fractional and integer order describing allied areas of science. 2021 IOP Publishing Ltd.
Veeresha P., Centre for Mathematical Needs, Department of Mathematics, CHRIST, Deemed to Be University, Bengaluru, 560029, India; Baleanu D., Department of Mathematics, Faculty of Arts and Sciences, Cankaya University, Eskisehir Yolu 29. Km, Yukariyurtcu Mahallesi Mimar Sinan Caddesi, Etimesgut, 406790, Turkey, Institute of Space Sciences, Magurele-Bucharest, Romania
Subaru Hyper Suprime-Cam Survey of Cygnus OB2 Complex - I. Introduction, photometry, and source catalogue
catalogues; methods: observational; stars: imaging; stars: low-mass; stars: pre-main-sequence; techniques: photometric
Low-mass star formation inside massive clusters is crucial to understand the effect of cluster environment on processes like circumstellar disc evolution, planet, and brown dwarf formation. The young massive association of Cygnus OB2, with a strong feedback from massive stars, is an ideal target to study the effect of extreme environmental conditions on its extensive low-mass population. We aim to perform deep multiwavelength studies to understand the role of stellar feedback on the IMF, brown dwarf fraction and circumstellar disc properties in the region. We introduce here, the deepest and widest optical photometry of 1. diameter region centred at Cygnus OB2 in r2, i2, z, and Y-filters, using Subaru Hyper Suprime-Cam (HSC). This work presents the data reduction, source catalogue generation, data quality checks, and preliminary results about the pre-main sequence sources. We obtain 713 529 sources in total, with detection down to ?28, 27, 25.5, and 24.5 mag in r2, i2, z, and Y-band, respectively, which is ?3 - 5 mag deeper than the existing Pan-STARRS and GTC/OSIRIS photometry. We confirm the presence of a distinct pre-main sequence branch by statistical field subtraction of the central 18 arcmin region. We find the median age of the region as ?5 2 Myr with an average disc fraction of ?9 per cent. At this age, combined with A $ 6 - 8 mag, we detect sources down to a mass range of ?0.01-0.17 M. The deep HSC catalogue will serve as the groundwork for further studies on this prominent active young cluster. 2021 The Author(s).
Gupta S.; Jose J.; More S.; Das S.R.; Herczeg G.J.; Samal M.R.; Guo Z.; Prakash P.; Damian B.; Takami M.; Takahashi S.; Ogura K.; Terai T.; Pyo T.-S.
Monthly Notices of the Royal Astronomical Society, Vol-508, No. 3, pp. 3388-3407.
All Open Access; Bronze Open Access; Green Open Access
https://doi.org/10.1093/mnras/stab2751 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119494588&doi=10.1093%2fmnras%2fstab2751&partnerID=40&md5=230a3502305f9dbe961d9c8410de77f6
Gupta S., Indian Institute of Science Education and Research (IISER) Tirupati, Rami Reddy Nagar, Karakambadi Road, Mangalam (P.O.), Tirupati, 517 507, India; Jose J., Indian Institute of Science Education and Research (IISER) Tirupati, Rami Reddy Nagar, Karakambadi Road, Mangalam (P.O.), Tirupati, 517 507, India; More S., Inter University Centre for Astronomy and Astrophysics, Ganeshkhind, Pune, 411007, India; Das S.R., Indian Institute of Science Education and Research (IISER) Tirupati, Rami Reddy Nagar, Karakambadi Road, Mangalam (P.O.), Tirupati, 517 507, India; Herczeg G.J., Kavli Institute for Astronomy and Astrophysics, Peking University, Yi He Yuan Lu 5, Haidian Qu, Beijing, 100871, China; Samal M.R., Physical Research Laboratory (PRL), Navrangpura, Ahmedabad, Gujarat, 380 009, India; Guo Z., Centre for Astrophysics Research, University of Hertfordshire, Hatfield, AL10 9AB, United Kingdom; Prakash P., Indian Institute of Science Education and Research (IISER) Tirupati, Rami Reddy Nagar, Karakambadi Road, Mangalam (P.O.), Tirupati, 517 507, India; Damian B., Christ (Deemed to be University), Bangalore, 560029, India; Takami M., Institute of Astronomy and Astrophysics, Academia Sinica 11F of Astronomy-Mathematics Building, National Taiwan University, 10617, Taiwan; Takahashi S., Joint ALMA Observatory, Alonso de Cdova 3107, Vitacura, Santiago, 763 0355, Chile, NAOJ Chile, National Astronomical Observatory of Japan, Alonso de Cdova 3788, Office 61B, Vitacura, Santiago, 763 0492, Chile; Ogura K., Kokugakuin University, Higashi, Shibuya-ku, Tokyo, 150-8440, Japan; Terai T., Subaru Telescope, National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 650 North Aohoku Place, Hilo, 96720, HI, United States; Pyo T.-S., Subaru Telescope, National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 650 North Aohoku Place, Hilo, 96720, HI, United States, School of Mathematical and Physical Science, SOKENDAI, Graduate University for Advanced Studies, Hayama, Kanagawa, 240-0193, Japan
An electrochemical sensor for nanomolar detection of caffeine based on nicotinic acid hydrazide anchored on graphene oxide (NAHGO)
A simple modified sensor was developed with nicotinic acid hydrazide anchored on graphene oxide (NAHGO), by ultrasonic-assisted chemical route, using hydroxy benzotriazole as a mediator. Structural and morphologies of NAHGO samples were investigated in detail by Fourier-Transform Infrared spectroscopy (FT-IR), Powder X-ray diffraction (P-XRD), Raman spectroscopy, Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Thermogravimetric analysis (TGA). The detailed morphological examination and electrochemical studies revealed the delaminated sheet with the tube-like structure of NAHGO provided the route for more electroactive surface which influenced the electrooxidation of caffeine with increased current. The electrochemical behaviour of NAHGO on a glassy carbon electrode (GCE) for caffeine detection was demonstrated by employing voltammetric techniques. The influence of scan rate, pH, and concentration on caffeine's peak current was also studied. The NAHGO sensor was employed for the determination of caffeine in imol plus and energy drinks. The detection limit determined was 8.7 109M, and the best value was reported so far. The results show that NAHGO modified electrodes are one of the best preferences to establish new, efficient, and reliable analytical tools for the detection of caffeine. 2021, The Author(s).
Jose J.; Subramanian V.; Shaji S.; Sreeja P.B.
Jose J., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India; Subramanian V., Department of Industrial Chemistry, Alagappa University, Karaikudi, 630003, Tamil Nadu, India; Shaji S., Facultad de Ingenier Mecica y Eltrica, Universidad Automa de Nuevo Le, San Nicol de los Garza, 66455, Nuevo Le, Mexico; Sreeja P.B., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India
Body image issues and self-concept dilemmas in adolescents living with thalassemia
adolescents; body image; self-concept dilemma; Thalassemia
Thalassemia, a genetic blood disorder, involves an inability to produce sufficient hemoglobin and comprises two types: alpha thalassemia and beta thalassemia. Beta thalassemias immediate treatment measures include frequent blood transmissions, stem cell and bone marrow transplants; all capable of altering an individuals idea of body image, self-concept, growth, and socialization, resulting in several emotional, psychological, and behavioral concerns. This study aimed at comprehending the dilemmas of body image and self-concept encountered by adolescents with thalassemia, particularly the resulting influence on physical development and socialization. Using the phenomenological interpretivism approach of qualitative research, data was collected using purposive-convenient sampling from 11 adolescents, both boys and girls ranging from ages 12 to 18, living with thalassemia and undergoing treatment. The research highlights adolescent concerns with body image, specifically with complexion, facial features, being either underweight or overweight, all amalgamating into a self-concept dilemma. Moreover, results point to the significant influence of experiences with family, peers, educational institutions, and hospital staff. Therapeutic attention, through regular screening and counselling, should be provided to adolescent thalassemia patients to address the psychological aspects of the chronic illness. 2021 Informa UK Limited, trading as Taylor & Francis Group.
Psychology, Health and Medicine, Vol-27, No. 3, pp. 598-612.
ISSN: 13548506; PubMed ID: 33784896; CODEN: PHMEF
Dhawan M., Department of Psychology, CHRIST (Deemed to Be University), Bengaluru, India; N. T S., Department of Psychology, CHRIST (Deemed to Be University), Bengaluru, India; Kakkar S., Department of Pediatrics, Dayanand Meidcal College and Hospital, Ludhiana, India
Presence of red giant population in the foreground stellar substructure of the Small Magellanic Cloud
galaxies: individual: Small Magellanic Cloud; galaxies: interactions; Magellanic Clouds; proper motions; stars: kinematics and dynamics
The eastern region of the Small Magellanic Cloud (SMC) is found to have a foreground stellar substructure, which is identified as a distance bimodality (?12 kpc apart) in the previous studies using red clump (RC) stars. Interestingly, studies of red giant branch (RGB) stars in the eastern SMC indicate a bimodal radial velocity (RV) distribution. In this study, we investigate the connection between these two bimodal distributions to better understand the nature and origin of the foreground stellar substructure in the eastern SMC. We use the Gaia Early Data Release 3 astrometric data and archival RV data of RGB stars for this study. We find a bimodal RV distribution of RGB stars (separated by ?35-45 km s-1) in the eastern and south-western (SW) outer regions. The observed proper motion values of the lower and higher RV RGB components in the eastern regions are similar to those of the foreground and main-body RC stars, respectively. This suggests that the two RGB populations in the eastern region are separated by a similar distance to those of the RC stars, and the RGB stars in the lower RV component are part of the foreground substructure. Based on the differences in the distance and RV of the two components, we estimate an approximate time of formation of this substructure as 307 65 Myr ago. This is comparable with the values predicted by simulations for the recent epoch of tidal interaction between the Magellanic Clouds. Comparison of the observed properties of RGB stars, in the outer SW region, with N-body simulations shows that the higher RV component in the SW region is at a farther distance than the main body, indicating the presence of a stellar counter-bridge in the SW region of the SMC. 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
James D.; Subramanian S.; Omkumar A.O.; Mary A.; Bekki K.; Cioni M.-R.L.; De Grijs R.; El Youssoufi D.; Kartha S.S.; Niederhofer F.; Van Loon J.T.
Monthly Notices of the Royal Astronomical Society, Vol-508, No. 4, pp. 5854-5863.
https://doi.org/10.1093/mnras/stab2873 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119474535&doi=10.1093%2fmnras%2fstab2873&partnerID=40&md5=4380e6a1b2b1a6585359850dd05d7b57
James D., Department of Physics, Christ (Deemed to Be) University, Bangalore, 560029, India; Subramanian S., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, 560034, India; Omkumar A.O., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, 560034, India, Leibniz-Institut fur Astrophysik Potsdam (AIP), An der Sternwarte 16, Potsdam, D-14482, Germany, Institut fur Physik und Astronomie, Universitat Potsdam Haus 28, Karl Liebknecht Str 24/25, Golm (Potsdam), D-14476, Germany; Mary A., Department of Physics, Christ (Deemed to Be) University, Bangalore, 560029, India; Bekki K., ICRAR M468, University of Western Australia, 35 Stirling Highway, Crawley, 6009, WA, Australia; Cioni M.-R.L., Leibniz-Institut fur Astrophysik Potsdam (AIP), An der Sternwarte 16, Potsdam, D-14482, Germany; De Grijs R., Leibniz-Institut fur Astrophysik Potsdam (AIP), An der Sternwarte 16, Potsdam, D-14482, Germany, Research Centre for Astronomy, Astrophysics and Astrophotonics, Macquarie University, Balaclava Road, Sydney, 2109, NSW, Australia; El Youssoufi D., Leibniz-Institut fur Astrophysik Potsdam (AIP), An der Sternwarte 16, Potsdam, D-14482, Germany, Institut fur Physik und Astronomie, Universitat Potsdam Haus 28, Karl Liebknecht Str 24/25, Golm (Potsdam), D-14476, Germany; Kartha S.S., Department of Physics, Christ (Deemed to Be) University, Bangalore, 560029, India; Niederhofer F., Leibniz-Institut fur Astrophysik Potsdam (AIP), An der Sternwarte 16, Potsdam, D-14482, Germany; Van Loon J.T., Lennard-Jones Laboratories, Keele University, Keele, ST5 5BG, United Kingdom
Green synthesis of zirconium phosphate by combustion method: photocatalytic application and microwave-assisted catalytic conversion of aldehyde to nitriles
aldehydes; Combustion; nitriles; photocatalytic degradation
Water pollution has increased swiftly, especially the dyes from industries that have disturbed aquatic eco-system. Photocatalytic degradation (PCD) is one of the attractive methods to eliminate dyes from industrial effluents. Zirconium phosphate (ZP) nanoparticles were synthesized by combustion method using zirconyl nitrate and phosphorous pentoxide as precursors. The obtained ZP was characterized by powder X-ray diffractogram, Fourier transform infrared, scanning electron microscopy, high-resolution transmission electron microscopy, Raman spectroscopy, photoluminescence spectroscopy, BrunauerEmmettTeller surface area. PCD was carried out using methylene blue as a model pollutant in aqueous medium in the presence of UV light irradiation with different concentrations of dye, catalyst and pH. Higher degradation efficiency was observed in basic medium. ZP is employed as a catalyst to form nitrides from aldehydes using different solvents with different aldehydes. Graphic abstract: [Figure not available: see fulltext.]. 2021, Indian Academy of Sciences.
Shashank M.; Bhojya Naik H.S.; Shashikanth J.; Nizam A.; Nagaraju G.
Bulletin of Materials Science, Vol-44, No. 4
Shashank M., Department of Studies and Research in Industrial Chemistry School of Chemical Sciences, Kuvempu University, Shankaragatta, 577451, India; Bhojya Naik H.S., Department of Studies and Research in Industrial Chemistry School of Chemical Sciences, Kuvempu University, Shankaragatta, 577451, India; Shashikanth J., Energy Materials Research Laboratory, Department of Chemistry, Siddaganga Institute of Technology, Tumakuru, 572 103, India; Nizam A., Department of Chemistry, Christ University, Bangalore, 560029, India; Nagaraju G., Energy Materials Research Laboratory, Department of Chemistry, Siddaganga Institute of Technology, Tumakuru, 572 103, India
Strategic positioning of tourist destinations- analyzing the role of perceived meaningfulness
Destination quality; Niche markets; Perceived meaningfulness; Positioning; Post-visit destination image; Travel motivation
This study analyzed the cognitive and affective components of destination image in the perception of foreign tourists visiting Indian destinations by exploring conceptual constructs, namely Post-visit Destination Image and Perceived Meaningfulness. The exploratory factor analysis of the responses of foreign tourists (n = 242) on items related to the major constructs significant in tourist behavior such as destination quality, perceived meaningfulness, and post-visit destination image confirmed the existence of multi-dimensional structure. Additionally, the empirical validation of the theoretical framework developed on the tenents of stimulus-organism-response paradigm with the constructs using structural equation modeling established significant relationships helpful to understand many new travel motivations. The study established that perceived meaningfulness has a significant mediating role in predicting tourist referral/revisit intentions from positive perceptions about destination quality and post-visit destination image. The observations from the study helped to identify six types of travel motivations useful in developing niche markets for positioning Indian destinations. The identified travel motivations, namely physical meaningfulness seeking, eternal meaningfulness seeking, social meaningfulness seeking, nature-loving, hospitality appreciating, and uniqueness exploring, offer directions to destination marketers to revamp destination attributes for destination marketing. 2021 The Authors
Rejikumar G.; Ajitha A.A.; Jose A.; Mathew S.
Journal of Hospitality and Tourism Management, Vol-49, pp. 140-151.
https://doi.org/10.1016/j.jhtm.2021.08.025 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114810668&doi=10.1016%2fj.jhtm.2021.08.025&partnerID=40&md5=b8c6669d27608dbe680910d54efef1bf
Rejikumar G., Department of Management, Amrita Vishwa Vidyapeetham, Kochi, India; Ajitha A.A., Indian Institute of Management Amritsar, Amritsar, India; Jose A., Department of Professional Studies, Christ University, Bangalore, India; Mathew S., School of Business and Management, Christ University, Bangalore, India
The Jesuit educational mission in rural Chotanagpur, India: historical achievements and contemporary challenges
affective commitment; Chotanagpur; Jesuits; psychological wellbeing; renewal of mission; teachers; tribal
Jesuit schools, in particular, have been known for a long time to be centres of learning in Chotanagpur area, India, where tremendous efforts were made to achieve a high level of academic excellence; yet it appears that this legacy is not being sustained among rural, tribal, vernacular schools of Chotanagpur these days because of varied reasons. In addition, it is observed that the agents of education, namely teachers, working in these schools have ceased to represent desirable attitudes (psychological wellbeing and affective commitment) which are essential for the teaching-learning process. If Jesuits want to maintain relevant and inspirational education in Chotanagpur, then they need to discern, decide, and dedicate themselves to guarantee teachers psychological well-being and affective commitment so that teachers can become creators of the Jesuit education ethos. Against this backdrop, the present research paper discusses the scenario of Jesuit run rural schools in Chotanagpur its historical achievements and contemporary challenges. In addition, practical implications and recommendations for a better future are discussed. 2019 Informa UK Limited, trading as Taylor & Francis Group.
International Studies in Catholic Education, Vol-14, No. 2, pp. 114-127.
Clarence M., Department of Psychology, CHRIST University, Bangalore, India; Viju P.D., Department of Psychology, CHRIST University, Bangalore, India; George T.S., Department of Psychology, CHRIST University, Bangalore, India
Patients' Perception about the Influence of CRM Factors in Selected Health Care Units
CRM; Healthcare; Patient's loyalty; Patient's perception; Service quality
The primary motivation behind this exploration study targets introducing a portion of the CRM ideas and components, CRM procedure to take proactive measures towards the customer to Health supplier to improve patients' satisfaction, loyalty fabricates a decent connection with patients and increment income. Patients' consideration, needs, and making associations with patients is an everyday schedule action in a well-being supplier. CRM is fundamental in this foundation customer satisfaction, the customer saw worth and customer relationship the board upgrade the relationship of the customer with the support up the general execution of the Hospital. The exploration configuration depends on quantitative examination, hence the information was gathered through an organized poll, five Likert-scales, SPSS, relapse, and SEM Model were utilized to figure out the results. This audits and distinguishes fundamental service quality, framework, the executives, and correspondence is identified with patients' satisfaction and loyalty in the private clinics in Andhra Pradesh. This investigation features the degree of service quality of the clinic services chosen by the test respondents.. This paper is an endeavour to discover connections between patients' views of customers' satisfaction and customers' loyalty and to propose ideas to have better CRM rehearses. 2021 by authors, all rights reserved. Authors agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License
Mandala G.N.; Desai K.; Jose J.; Koshy E.R.; Bhagyalakshmi M.
Universal Journal of Public Health, Vol-9, No. 6, pp. 410-417.
https://doi.org/10.13189/UJPH.2021.090608 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85137557448&doi=10.13189%2fUJPH.2021.090608&partnerID=40&md5=8a463eb7f6b6cd32198deffde05f23f0
Mandala G.N., Department of Professional Studies, CHRIST Deemed to be University, Bengaluru, India; Desai K., Department of Professional Studies, CHRIST Deemed to be University, Bengaluru, India; Jose J., Department of Professional Studies, CHRIST Deemed to be University, Bengaluru, India; Koshy E.R., Department of Professional Studies, CHRIST Deemed to be University, Bengaluru, India; Bhagyalakshmi M., Department of Professional Studies, CHRIST Deemed to be University, Bengaluru, India