Factors affecting luxury brand consumption and its impact on consumer purchase intentions: An India fashion luxury goods sector perspective
Conspicuousness; Hedonic value; Luxury brands; Purchase Intention; Self-directedness; Uniqueness value; Utility value
This study identifies and analyses the psychographic and demographic factors that influence luxury brand purchase intention in the Indian context. It discusses the existing knowledge pertaining to luxury brand consumption and a conceptual framework is developed based on the review of literature. India's favorable demographic profile, the growing middle class, high disposable income and young population, has helped the Indian luxury market witness a tremendous growth. The research identifies what drives the luxury brand purchase intention for the Indian consumers amidst this growth and analyses how it differs based on demographic variables such as age, gender and income. Based on the model thus created, the research seeks to segment the Indian luxury fashion brand consumers according to the significant demographic and psychographic variables thus identified. A questionnaire on a Likert scale was administered to 250 respondents of different age, income and gender groups within the city of Bangalore. The data was then analyzed using correlation, regression, cluster and frequency analysis in SPSS. The functionality is the major value factors effecting purchase intention of Indian luxury fashion consumer. The other identified value factors are correlated to self and others directedness. Age and income also have a significant influence of purchase intention. It was also found that purchase intention varies between different age and income groups. Finally, it was found that Indian consumers can be segmented as Superficial Luxury seekers, Luxury-Indulgers, Luxury-Avoiders, Attention and approval seekers. 2021 Ecological Society of India. All rights reserved.
Indian Journal of Ecology, Vol-48, pp. 92-99.
Suresh A.S., School of Business and Management, Christ University, Bangalore, 560 029, India; Sharma V., School of Business and Management, Christ University, Bangalore, 560 029, India
Fluorescein Based Fluorescence Sensors for the Selective Sensing of Various Analytes
Fluorescein; Fluorescent probes; Fluorescent sensors; Spirolactum
Fluorescein molecules are extensively used to develop fluorescent probes for various analytes due to their excellent photophysical properties and the spirocyclic structure. The main structural modification of fluorescein occurs at the carboxyl group where different groups can be easily introduced to produce the spirolactam structure which is non-fluorescent. The spirolactam ring opening accounts for the fluorescence and the dual sensing of analytes using fluorescent sensors is still a topic of high interest. There is an increase in the number of dual sensors developed in the past five years and quite a good number of fluorescein derivatives were also reported based on reversible mechanisms. This review analyses environmentally and biologically important cations such as Cu2+, Hg2+, Fe3+, Pd2+, Zn2+, Cd2+, and Mg2+; anions (F?, OCl?) and small molecules (thiols, CO and H2S). Structural modifications, binding mechanisms, different strategies and a comparative study for selected cations, anions and molecules are outlined in the article. 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Keerthana S.; Sam B.; George L.; Sudhakar Y.N.; Varghese A.
Journal of Fluorescence, Vol-31, No. 5, pp. 1251-1276.
ISSN: 10530509; PubMed ID: 34255257; CODEN: JOFLE
Keerthana S., Department of Chemistry, CHRIST (Deemed To Be University), Hosur Road, Bengaluru, 560029, India; Sam B., Department of Chemistry, CHRIST (Deemed To Be University), Hosur Road, Bengaluru, 560029, India; George L., Department of Chemistry, CHRIST (Deemed To Be University), Hosur Road, Bengaluru, 560029, India; Sudhakar Y.N., Department of Chemistry, CHRIST (Deemed To Be University), Hosur Road, Bengaluru, 560029, India; Varghese A., Department of Chemistry, CHRIST (Deemed To Be University), Hosur Road, Bengaluru, 560029, India
Study of the personal factors influencing voluntary turnover amongst women
Female labour force Participation; Role expectation; Role perception; Voluntary turnover
In a country where the economic and social independence of a woman is dependent on the way households are structured and organised, the rise in their education and decline in their workforce participation rate is an indication of their paradoxical situation. In this study we evaluate the direct effect of the factors in the personal domain of women on her career break decision. The data from 402 Indian women was analysed using Exploratory Factor Analysis and Confirmatory Factor Analysis, which was then followed by Structural Equation Modelling to check the conceptual model developed through literature review. In present study support personal predictors to turnover intention outcome model, confirming the influence of role conflict, role expectation, role perception, stress, financial soundness, role overload and guilt. Role perception and expectation of women were most significant factors influencing turnover intention of women, implying that the most important change needed is for a change in their own mindset and those around them to arrest their exit from the workforce. 2021 Ecological Society of India. All rights reserved.
Indian Journal of Ecology, Vol-48, pp. 119-122.
Poulose J., LNCT University, Bhopal-, 462 042, India; Sharma V., CHRIST (Deemed to be University), Delhi NCR, 201 003, India; Dubey P., LNCT University, Bhopal-, 462 042, India
A novel survey for young substellar objects with the W-band filter III: Searching for very low-mass brown dwarfs in Serpens South and Serpens Core
binaries: general; brown dwarfs; stars: low-mass
We present CFHT photometry and IRTF spectroscopy of low-mass candidate members of Serpens South and Serpens Core (?430 pc, ?0.5 Myr), identified using a novel combination of photometric filters, known as the W-band method. We report SC182952+011618, SS182959-020335, and SS183032-021028 as young, low-mass Serpens candidate members, with spectral types in the range M7-M8, M5-L0, and M5-M6.5, respectively. Best-fitting effective temperatures and luminosities imply masses of < 0.12M? for all three candidate cluster members. We also present Hubble Space Telescope imaging data (F127M, F139M, and F850LP) for six targets in Serpens South. We report the discovery of the binary system SS183044-020918AB. The binary components are separated by ?45 AU, with spectral types of M7-M8 and M8-M9, and masses of 0.08-0.1 and 0.05-0.07 M. We discuss the effects of high dust attenuation on the reliability of our analysis, as well as the presence of reddened background stars in our photometric sample. 2021 The Author(s).
Dubber S.; Biller B.; Allers K.; Jose J.; Albert L.; Pantoja B.; Fontanive C.; Liu M.; Zhang Z.; Chen W.-P.; Lalchand B.; Damian B.; Sharma T.
Monthly Notices of the Royal Astronomical Society, Vol-505, No. 3, pp. 4215-4234.
All Open Access; Green Open Access; Hybrid Gold Open Access
https://doi.org/10.1093/mnras/stab1397 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128556871&doi=10.1093%2fmnras%2fstab1397&partnerID=40&md5=2c46c6941f4235380e6dc1429e50bc3f
Dubber S., SUPA, Institute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh, EH93HJ, United Kingdom, Centre for Exoplanet Science, University of Edinburgh, Edinburgh, EH9 3HJ, United Kingdom; Biller B., SUPA, Institute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh, EH93HJ, United Kingdom, Centre for Exoplanet Science, University of Edinburgh, Edinburgh, EH9 3HJ, United Kingdom; Allers K., Department of Physics and Astronomy, Bucknell University, Lewisburg, 17837, PA, United States; Jose J., Indian Institute of Science Education and Research (IISER) Tirupati, Rami Reddy Nagar, Karakambadi Road, Mangalam (P.O.), Tirupati, 517 507, India; Albert L., Institut de recherche sur les exoplanes, Universitde Montrl, Quec, H3C 3J7, QC, Canada; Pantoja B., Department of Physics and Astronomy, Bucknell University, Lewisburg, 17837, PA, United States; Fontanive C., Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, Bern, CH-3012, Switzerland; Liu M., Institute for Astronomy, University of Hawaii at Manoa, Honolulu, 96822, HI, United States; Zhang Z., Institute for Astronomy, University of Hawaii at Manoa, Honolulu, 96822, HI, United States; Chen W.-P., Graduate Institute of Astronomy, National Central University, Zhongli, Taoyuan, 32001, Taiwan; Lalchand B., Graduate Institute of Astronomy, National Central University, Zhongli, Taoyuan, 32001, Taiwan; Damian B., CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India; Sharma T., Graduate Institute of Astronomy, National Central University, Zhongli, Taoyuan, 32001, Taiwan
Randomized Trials of Psychotherapeutic Treatment for Psychogenic Seizures: Scoping Review
dissociative seizures; nonepileptic attack disorder; pseudoseizures; Psychogenic nonepileptic seizures; psychotherapy; RCTs
Background: Psychotherapy improves seizure frequency and psychosocial aspects in psychogenic nonepileptic seizures (PNES). Although randomized controlled trials (RCTs) on different psychotherapies have been conducted for almost two decades now, no review has exclusively assessed RCTs of different psychotherapies. Methods: The objective was to review RCTs of psychotherapy for PNES, to understand the impact of different psychotherapies. Eligibility criteria included full-text articles, English articles, published between years 2000 and 2020, randomized trials of psychotherapy, and the adult population. Databases included PubMed, ProQuest, Google Scholar, ScienceDirect, EBSCO, PsycINFO, Cochrane, and a random google search was conducted. Rayyan software was used to include articles that met our eligibility criteria. The search was carried out independently by two researchers Results: Based on the eligibility criteria, seven studies were found. Amongst them, cognitive behavioral therapy (CBT) was the most researched and seemed more effective when paired with standard medical care (SMC) or sertraline. Comparisons of CBT and brief psychodynamic therapy did not reveal significant differences. Other psychotherapies included motivational interview+psychotherapy, which significantly reduced seizure frequency and improved psychosocial functioning. Paradoxical intention therapy also reduced PNES symptoms; however, it has not been researched in the last 15 years. Group psychoeducation seems to have an impact only on psychosocial functioning and not on seizure frequency. Conclusion: CBT paired with SMC or sertraline and MI along with psychotherapy yields the most effective results for PNES in reducing seizure frequency and improving psychosocial functioning. 2021 Indian Psychiatric Society - South Zonal Branch.
Haritsa S.V.; Reddy K.J.; Rafiq A.; Gupta M.
Indian Journal of Psychological Medicine, Vol-43, No. 6, pp. 469-472.
All Open Access; Gold Open Access; Green Open Access
Haritsa S.V., Dept. of Psychology, CHRIST (Deemed to be University), Bangalore, Karnataka, India; Reddy K.J., Dept. of Psychology, CHRIST (Deemed to be University), Bangalore, Karnataka, India; Rafiq A., Dept. of Psychology, CHRIST (Deemed to be University), Bangalore, Karnataka, India; Gupta M., Amity Institute of Psychology and Allied Sciences, Amity University, Sector 125, Noida, Uttar Pradesh, India
The Renaissance of Electro-Organic Synthesis for the Difunctionalization of Alkenes and Alkynes: A Sustainable Approach
1,2-hetero difunctionalization; 1,2-homodifunctionalization; cyclization reaction; Difunctionalisation; Electro-organic; Electrocatalyst; ipso-migration; Mediator; oxidative annulation; rearrangement
Electro-organic reactions are now considered as one of the most efficient and environmentally benign methodologies to synthesize highly functionalized motifs like difunctionalized unsaturated compounds from readily available substrates. Excellent regioselectivity, functional group tolerance and broad range of substrates are the main advantages of electrochemical difunctionalization reactions. Alkenes and alkynes readily accept radical or ionic derivatives which makes it vital precursors for the electrochemical synthesis of industrially relevant and biologically active molecules through difunctionalization. This review aims to provide the readers an excellent coverage of the different electrochemical difunctionalization of alkenes and alkynes such as 1,2-homodifunctionalization, 1,2-heterodifunctionalization, rearrangement, ipso-migration, cyclization and dehydrogenative annulation reactions. 2021 Wiley-VCH GmbH
Thadathil D.A.; Varghese A.; Radhakrishnan K.V.
Asian Journal of Organic Chemistry, Vol-10, No. 11, pp. 2820-2847.
https://doi.org/10.1002/ajoc.202100447 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115853466&doi=10.1002%2fajoc.202100447&partnerID=40&md5=582b3fe3250ed2abdc60d83289d40247
Thadathil D.A., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, Karnataka, India; Varghese A., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, Karnataka, India; Radhakrishnan K.V., Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India
Usage data for predicting user trends and behavioral analysis in E-commerce applications
Internet; Prediction; Web; Web Mining; WWW
Reviewing and buying the right goods from online websites is growing day by day in todays fast internet environment. Numerous goods in the same label are available to consumers. It is thus a difficult job for consumers to pick up the correct commodity at a decent price under different market conditions. Therefore, it is important for owners of online shopping websites to better understand their customers needs and offer better services. For these reasons, the access log documented a vast amount of data related to user interactions with the websites. This access log therefore plays a key role in predicting user access trends and in recommending the best product to consumers. This research work therefore focuses on one such methodology for evaluating the pattern and behavioral analysis of users in e-commerce websites. Copyright 2021, IGI Global.
Sathiyamoorthi V.; Ravishankar T.N.; Ilavarasi A.K.; Udayakumar S.; Harimoorthy K.; Jayapandian N.; Saravanan V.
International Journal of Information Systems in the Service Sector, Vol-13, No. 4, pp. 40-61.
https://doi.org/10.4018/IJISSS.2021100103 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115197380&doi=10.4018%2fIJISSS.2021100103&partnerID=40&md5=77adcfe5a8b03bcd607ec0c5735ed8a1
Sathiyamoorthi V., Sona College of Technology, India; Ravishankar T.N., Veltech Hightech Dr. Rangarajan Dr. Sakunthala Engineering College, India; Ilavarasi A.K., Centre for Healthcare Advancement, Innovation and Research, Vellore Institute of Technology, Chennai, India; Udayakumar S., Mettu University, Ethiopia; Harimoorthy K., CHRIST University, Deemed), India; Jayapandian N., CHRIST University, Deemed), India; Saravanan V., Dambi Dollo University, Ethiopia
Recent advances in carbon nanotubes-based biocatalysts and their applications
Biocatalyst; Biofuel cells; Biosensor; Carbon nanotubes; Enzyme immobilization
Enzymes have been incorporated into a wide variety of fields and industries as they catalyze many biochemical and chemical reactions. The immobilization of enzymes on carbon nanotubes (CNTs) for generating nano biocatalysts with high stability and reusability is gaining great attention among researchers. Functionalized CNTs act as excellent support for effective enzyme immobilization. Depending on the application, the enzymes can be tailored using the various surface functionalization techniques on the CNTs to extricate the desirable characteristics. Aiming at the preparation of efficient, stable, and recyclable nanobiocatalysts, this review provides an overview of the methods developed to immobilize the various enzymes. Various applications of carbon nanotube-based biocatalysts in water purification, bioremediation, biosensors, and biofuel cells have been comprehensively reviewed. 2021 Elsevier B.V.
Kumari A.; Rajeev R.; Benny L.; Sudhakar Y.N.; Varghese A.; Hegde G.
Advances in Colloid and Interface Science, Vol-297
https://doi.org/10.1016/j.cis.2021.102542 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117141795&doi=10.1016%2fj.cis.2021.102542&partnerID=40&md5=94f14e35d55a042f10a7da2aa621f1b9
Kumari A., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 29, India; Rajeev R., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 29, India; Benny L., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 29, India; Sudhakar Y.N., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 29, India; Varghese A., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 29, India; Hegde G., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 29, India
GalNAc-siRNA conjugates: Prospective tools on the frontier of anti-viral therapeutics
GalNac conjugate; Hepatitis B; Hepatocytes; SiRNA; Virus
The growing use of short-interfering RNA (siRNA)-based therapeutics for viral diseases reflects the most recent innovations in anti-viral vaccines and drugs. These drugs play crucial roles in the fight against many hitherto incurable diseases, the causes, pathophysiologies, and molecular processes of which remain unknown. Targeted liver drug delivery systems are in clinical trials. The receptor-mediated endocytosis approach involving the abundant asialoglycoprotein receptors (ASGPRs) on the surfaces of liver cells show great promise. We here review N-acetylgalactosamine (GalNAc)-siRNA conjugates that treat viral diseases such as hepatitis B infection, but we also mention that novel, native conjugate-based, targeted siRNA anti-viral drugs may also cure several life-threatening diseases such as hemorrhagic cystitis, multifocal leukoencephalopathy, and severe acute respiratory syndrome caused by coronaviruses and human herpes virus. 2021 Elsevier Ltd
Thangamani L.; Balasubramanian B.; Easwaran M.; Natarajan J.; Pushparaj K.; Meyyazhagan A.; Piramanayagam S.
ISSN: 10436618; PubMed ID: 34474100; CODEN: PHMRE
https://doi.org/10.1016/j.phrs.2021.105864 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114692125&doi=10.1016%2fj.phrs.2021.105864&partnerID=40&md5=018e550bd85fe60324a2a8024e78d290
Thangamani L., Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India; Balasubramanian B., Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul, 05006, South Korea; Easwaran M., International Centre for Genetic Engineering and Biotechnology, 110067, New Delhi, India; Natarajan J., Data Mining and Text Mining Laboratory, Department of Bioinformatics, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India; Pushparaj K., Department of Zoology, School of Biosciences, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India; Meyyazhagan A., Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India; Piramanayagam S., Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
A review on extraction and separation of cellulose fibers from agro wastes
Over the past few decades, there was significant increase in research concerning resources that have certain desirable characteristics like renewability, ease of availability, economic value, excellent mechanicalthermal properties, biocompatibility and biodegradability. Cellulose is one such resource that possesses these characteristics and yet various sources that constitute ample quantities of lignocellulose are discarded, as their peculiarities and applications were not widely known to the population. Agro wastes, which are generated every year at a tremendous rate, are viewed as a promising substrate for the commercial extraction of cellulose. Hence in this review, an appropriate utilization of these agricultural by-products, with respect to extraction of cellulose is discussed, so as to ameliorate their applications in an aim to diminish the disposal rate of essential commodities. 2021 World Research Association. All rights reserved.
Research Journal of Chemistry and Environment, Vol-25, No. 10, pp. 158-171.
Kariyadan S., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, Bangalore, India; Umesh M., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, Bangalore, India
Is robotics education and training gender dependent? A suggestive robotics syllabus for teacher training
Educational robotics; Gender-science stereotype; Robotics syllabus; Robotics training
Application of robotics is rapidly increasing in all fields of life. Though robotics education became popular in the 21st century, its teaching and training has not gained much importance across the world, especially in developing and low-income countries. There are various reasons for its neglect and one of them could be gender-science stereotypes. Research studies are yet to explore the reasons for its slow emergence. The present study explores the need and training for educational robotics considering the role of students, teachers, teacher-educators and parents, determining whether it is gender-dependent or not. The study also proposes to come up with a syllabus for robotics training. The study employs exploratory, sequential, qualitative-quantitative mixed-method research design and applies purposive sampling techniques. Researchers conducted semi-structured interviews, including five science teacher-educators, five science teachers, and five trainee teachers majoring in sciences to understand the need, scope and benefits of robotics education. They recruited 100 high school students, 50 teacher-educators, and 100 parents to test whether their interest in robotics is gender-dependent through Chi-square analysis. The study revealed the need for robotics education under four themes and seven subthemes. It has been found that the interest of students and parents and the readiness of teacher-educators for robotics education is gender-dependent. The study came up with a suggestive syllabus for robotics training. It recommends that future researchers should focus on the implementation of robotics teaching for teacher and school education. 2021 Authors.
Prakasha G.S.; Kureethara J.V.; Kenneth A.; Muttungal P.V.; Grundmeyer T.
International Journal of Learning, Teaching and Educational Research, Vol-20, No. 10, pp. 42-60.
Society for Research and Knowledge Management
All Open Access; Hybrid Gold Open Access
https://doi.org/10.26803/IJLTER.20.10.3 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118809964&doi=10.26803%2fIJLTER.20.10.3&partnerID=40&md5=78c60afa939269531bd4c7ca2aa88df2
Prakasha G.S., Christ University, Bangalore, India; Kureethara J.V., Christ University, Bangalore, India; Kenneth A., Christ University, Bangalore, India; Muttungal P.V., Christ University, Bangalore, India; Grundmeyer T., Drake University, Des Moines, IA, United States
Doping and Surface Modification of Carbon Quantum Dots for Enhanced Functionalities and Related Applications
0D nanomaterials; carbon quantum dots; fluorescent inks; heteroatom doping; photocatalysis; photoluminescence mechanism; sensors
Carbon quantum dots (CQDs) are a unique class of 0D nanomaterials, featured by a graphitic core and shell layers saturated with hydrogen atoms and functional groups. CQDs are prepared through top-down and bottom-up strategies from natural and synthetic precursors. CQDs can be modified through chemical (e.g., surface functionalization/passivation, doping, etc.) and physical (e.g., coreshell architecture, composite material blending, etc.) strategies to control their properties. This review highlights the effect of such modifications on the photophysical properties of CQDs, such as photoluminescence (PL), absorbance, and relaxivity. The dependence of PL upon the size, orientation at the edges, surface and edge functionalization, doping, excitation wavelength, concentration, pH, aggregate formation, etc., are summarized along with the supporting theoretical evidence available in the literature. Also, this review outlines the recent advancements, and future prospective of optical (e.g., sensing, bioimaging, and fluorescent ink) and catalytic applications (e.g., photocatalysis and electrocatalysis) of CQDs enhanced through physical and chemical modifications of their structure and composition. 2021 Wiley-VCH GmbH
Particle and Particle Systems Characterization, Vol-38, No. 11
https://doi.org/10.1002/ppsc.202100170 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114725757&doi=10.1002%2fppsc.202100170&partnerID=40&md5=5abb0a3a87d6ac37a8f7354209939e2f
John V.L., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, Karnataka, India; Nair Y., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, Karnataka, India; Vinod T.P., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, Karnataka, India
A survey of the studies on Gallai and anti-Gallai graphs
Anti-Gallai graphs; Cograph; Gallai graphs; Gallai-mortal graph; Irreducibility; Line graphs; Simplicial complex; Total graph
The Gallai graph and the anti-Gallai graph of a graph G are edge disjoint spanning subgraphs of the line graph L(G). The vertices in the Gallai graph are adjacent if two of the end vertices of the corresponding edges in G coincide and the other two end vertices are nonadjacent in G. The anti-Gallai graph of G is the complement of its Gallai graph in L(G). Attributed to Gallai (1967), the study of these graphs got prominence with the work of Sun (1991) and Le (1996). This is a survey of the studies conducted so far on Gallai and anti-Gallai of graphs and their associated properties. 2021 Azarbaijan Shahid Madani University.
Poovathingal A.; Kureethara J.V.; Deepthy D.
Communications in Combinatorics and Optimization, Vol-6, No. 1, pp. 93-112.
Poovathingal A., Department of Mathematics, Christ University, Bengaluru, India; Kureethara J.V., Department of Mathematics, Christ University, Bengaluru, India; Deepthy D., Department of Mathematics, GITAM University, Bengaluru, India
Opportunistic mycoses in COVID-19 patients/survivors: Epidemic inside a pandemic
Corticosteroids; COVID-19; Immunosuppressed; Intrusive fungus; Sepsis
Being considered minor vexations, fungal infections hinder the life of about 15% of the world population superficially, with rare threats to life in case of invasive sepsis. A significant rise in the intrusive mycoses due to machiavellian fungal species is observed over the years due to increased pathology and fatality in people battling life-threatening diseases. Individuals undergoing therapy with immune suppressive drugs plus recovering from viral infections have shown to develop fungal sepsis as secondary infections while recovering or after. Currently, the whole world is fighting against the fright of Coronavirus disease (COVID-19), and corticosteroids being the primitive therapeutic to combat the COVID-19 inflammation, leads to an immune-compromised state, thereby allowing the not so harmful fungi to violate the immune barrier and flourish in the host. A wide range of fungal co-infection is observed in the survivors and patients of COVID-19. Fungal species of Candida, Aspergillus and Mucorales, are burdening the lives of COVID-19 patients/survivors in the form of Yellow/Green, White and Black fungus. This is the first article of its kind to assemble note on fungal infections seen in the current human health scenario till date and provides a strong message to the clinicians, researchers and physicians around the world non-pathological fungus should not be dismissed as contaminants, they can quell immunocompromised hosts. 2021
Kuchi Bhotla H.; Balasubramanian B.; Meyyazhagan A.; Pushparaj K.; Easwaran M.; Pappusamy M.; Alwin Robert A.; Arumugam V.A.; Tsibizova V.; Msaad Alfalih A.; Aljowaie R.M.; Saravanan M.; Di Renzo G.C.
Journal of Infection and Public Health, Vol-14, No. 11, pp. 1720-1726.
https://doi.org/10.1016/j.jiph.2021.10.010 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117718895&doi=10.1016%2fj.jiph.2021.10.010&partnerID=40&md5=f4377ffc10e8595e0be9ef01b3abab03
Kuchi Bhotla H., Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560029, India; Balasubramanian B., Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul, 05006, South Korea; Meyyazhagan A., Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560029, India, Department of Obstetrics and Gynecology, Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy; Pushparaj K., Department of Zoology, School of Biosciences, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641 043, Tamil Nadu, India; Easwaran M., Computational Biology Lab, Department of Bioinformatics, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India; Pappusamy M., Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560029, India; Alwin Robert A., Department of Endocrinology and Diabetes, Prince Sultan Military Medical City, Riyadh, Saudi Arabia; Arumugam V.A., Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India; Tsibizova V., Institute of Perinatology and Pediatrics, Almazov National Medical Research Centre, Saint-Petersburg, Russian Federation; Msaad Alfalih A., Department of Botany and Microbiology, College of Science, King Saud University, P.O Box 24552, Riyadh, 11495, Saudi Arabia; Aljowaie R.M., Department of Botany and Microbiology, College of Science, King Saud University, P.O Box 24552, Riyadh, 11495, Saudi Arabia; Saravanan M., Department of Microbiology and Immunology, Division of Biomedical Sciences, School of Medicine, College of Health Science, Mekelle University, Mekelle, 1871, Ethiopia, Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha Dental College, Chennai, 600077, Tamil Nadu, India; Di Renzo G.C., Department of Obstetrics and Gynecology, Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy
A review on synthetic approaches towards kavalactones
5,6-dihydropyrones; Biological activity; Chiral auxiliary; Lactones; Lipase resolution; Natural products; Total synthesis; ?-pyrones
Kavalactones are classes of ?-pyrone and 5,6-dihydropyrone derivatives showing various biological activities, and numerous approaches have been reported for the preparation of these molecules. In this review, we discuss the different synthetic approaches towards these naturally occurring lactones, in both racemic and enantiomerically pure forms, that have been reported in the literature to date. It is hoped that this review will assist researchers in the development of additional and efficient synthetic routes towards kavalactones. 1 Introduction 2 Synthetic Approaches for the Preparation of Kavalactones 3 Conclusion. 2021. Thieme.
Synthesis (Germany), Vol-53, No. 19, pp. 3469-3484.
https://doi.org/10.1055/s-0040-1706044 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106938214&doi=10.1055%2fs-0040-1706044&partnerID=40&md5=a39b797d04bfa1a0ab1675c38bb553bc
Tadiparthi K., Department of Chemistry, CHRIST (Deemed to Be University), Hosur Road, Bangalore, 560026, India; Anand P., Department of Chemistry, CHRIST (Deemed to Be University), Hosur Road, Bangalore, 560026, India
Roadmap of effects of biowaste-synthesized carbon nanomaterials on carbon nano-reinforced composites
Biowaste; Carbon; PNCs; Porosity; Reinforced composites
Sustainable growth can be achieved by recycling waste material into useful resources without affecting the natural ecosystem. Among all nanomaterials, carbon nanomaterials from biowaste are used for various applications. The pyrolysis process is one of the eco-friendly ways for synthesizing such carbon nanomaterials. Recently, polymer nanocomposites (PNCs) filled with bio-waste-based carbon nanomaterials attracted a lot of attention due to their enhanced mechanical properties. A variety of polymers, such as thermoplastics, thermosetting polymers, elastomers, and their blends, can be used in the formation of composite materials. This review summarizes the synthesis of carbon nanomaterials, polymer nanocomposites, and mechanical properties of PNCs. The review also focuses on various biowaste-based precursors, their nanoproperties, and turning them into proper composites. PNCs show improved mechanical properties by varying the loading per-centages of carbon nanomaterials, which are vital for many defence-and aerospace-related indus-tries. Different synthesis processes are used to achieve enhanced ultimate tensile strength and mod-ulus. The present review summarizes the last 5 years work in detail on these PNCs and their appli-cations. 2021 by the authors. Licensee MDPI, Basel, Switzerland.
https://doi.org/10.3390/catal11121485 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120643131&doi=10.3390%2fcatal11121485&partnerID=40&md5=caab7ac36e3789f9a07478b33fc7edab
Thippeswamy B.H., Department of Electronics & Communication Engineering, B.M.S. College of Engineering, Bengaluru, Bangalore, 560019, India; Maligi A.S., Department of Electronics & Communication Engineering, B.M.S. College of Engineering, Bengaluru, Bangalore, 560019, India; Hegde G., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, Karnataka, 560029, India, Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Road, Bengaluru, Karnataka, 560029, India
Toxic Effects of Nanoparticles on Fish Embryos
Metal oxide; Metal toxicity; Nanoparticles; Nanotoxicity; Pollution
Nanoparticles are used widely in the in-drug delivery, diagnostics, cosmetics, paints, electronics, fabrics, solar cells, medicines etc. Their wide application is due to their special properties which include minute size, high reaction rate, increased surface area and quantum effect. Despite their multiple applications, nanoparticles have harmful effects too due to their improper disposal causing their entry into the aquatic environment greatly threatening the ecological security as well as our health. Zebra fishes (Danio rerio) are used more commonly for the evaluation of toxicity and are considered a promising animal model. Studies on Salmon and Labeo rohita have also been used for toxicity evaluation. Nanoparticles affect the embryo more easily than the adult since the embryo are more sensitive. Hence it becomes important for us to study the effect of the nanoparticles on the embryo of the fishes. These nanoparticles have the ability to cross the chorion layer and affect the developing embryo. Since the fishes are a part of the food chain, when these organisms get affected they will eventually harm the humans too. This review focuses on the effect of metal nanoparticles (NPs) like gold(Au), silver(Ag), copper(Cu), platinum and metal oxides nanoparticles like titanium dioxide, aluminium oxide, copper oxide, nickel oxide zinc oxide on the embryonic development of fish embryos. When compared to the other nanoparticles (NPs) like silver, copper and platinum, it has been observed that the gold nanoparticles (Au NPs) showed no toxicity to embryos of zebrafish though few studies contradict this. Aluminium nanoparticles showed no toxicity and role of reactive oxygen species (ROS) in enhancing the toxicity of nanoparticles have also been discussed. 2021 World Research Association. All rights reserved.
Gopalraaj J.; Manikantan P.; Arun M.; Balamuralikrishnan B.; Anand A.V.
Research Journal of Biotechnology, Vol-16, No. 12, pp. 140-149.
https://doi.org/10.25303/1612rjbt140149 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123557688&doi=10.25303%2f1612rjbt140149&partnerID=40&md5=152600f5aadf4f2a7b8ba79bb5b09369
Gopalraaj J., Department of Life Sciences, CHRIST (Deemed to be) University, Karnataka, Bangalore, 560029, India; Manikantan P., Department of Life Sciences, CHRIST (Deemed to be) University, Karnataka, Bangalore, 560029, India; Arun M., Department of Life Sciences, CHRIST (Deemed to be) University, Karnataka, Bangalore, 560029, India; Balamuralikrishnan B., Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul, South Korea; Anand A.V., Department of Human Molecular Genetics, Bharathiar University, Tamilnadu, Coimbatore, 641046, India
Antibacterial efficiency of carbon dots against Gram-positive and Gram-negative bacteria: A review
Antibacterial mechanisms; Antibiotic resistance; Carbon dot; Gram-positive and Gram-negative bacteria; Modified carbon dots; ROS
The nontoxic characteristics and inherent antibacterial potency of Carbon dots (CDs) have earned immense attention in the last few years. As the increasing antibiotic resistance of bacterial strains create critical health risks, replacement of conventional antibiotics with alternative antibacterial agents is highly encouraged. The light-driven antibacterial action CDs is a safe process with minimal side effects. Direct interaction of CDs with bacterial cells also contribute to the overall antibacterial activity. Unique and complex mechanisms of antibacterial activity of CDs involve ROS generation, degeneration of cell structure, and leakage of the cytoplasm because of DNA binding and modulation of gene expression. This review provides a systematic overview of the antibacterial potency of CDs to eradicate Gram-positive and Gram-negative bacteria. Various mechanisms of antibacterial activity and factors that contribute to antibacterial action of CDs also discussed. It also highlights the synergistic effects on the antibacterial performance of modified CDs and significant future research concerns. 2021 Elsevier Ltd
Journal of Environmental Chemical Engineering, Vol-9, No. 6
https://doi.org/10.1016/j.jece.2021.106821 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120323488&doi=10.1016%2fj.jece.2021.106821&partnerID=40&md5=23cbc60d77c4f36c6414becdbed9a9fa
Varghese M., Department of Physics and Electronics, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India; Balachandran M., Department of Physics and Electronics, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India
Recent Advances in Hydrogenation Reactions Using Bimetallic Nanocatalysts: A Review
Bimetallic nanoparticles; bio-based carbonyls; heterogeneous catalysis; nitroaromatics; selective hydrogenation
Hydrogenation reactions have been studied for many decades now and have developed from reactions that appear simple to now being recognized for their many complexities. These reactions are generally catalyzed using monometallic and more recently, with bimetallic nanocatalysts. Hydrogenation plays a vital role in food, chemical, petrochemical, pharmaceuticals, and dye industries to name a few. The hydrogenated products derived from several biomass-based compounds are potential fossil fuels. Such products when employed in daily life, can help conserve natural resources. While hydrogenation of alkynes and alkenes are among the simplest of hydrogenation reactions, the most extensive and elegant manifestation of this reaction is seen in polymerization. Polymers like polythene, polypropylene (plastic) have replaced materials like glass, stainless steel, etc., in making daily use items for the obvious advantages of the former. Purification of alkenes is achieved by partially hydrogenating the respective alkynes present in trace amounts. This serves as an important step in the polymerization process. The presence of nitro group on aromatic rings makes them carcinogenic in nature which harms living organisms. For a safe environment, the elimination or modification of this nitro group becomes imperative. The products of hydrogenation of nitroaromatics and amino aromatics form the basis of pharmaceuticals and dyestuffs. A plethora of bimetallic catalysts have been used to catalyze these hydrogenation reactions. These catalysts are evaluated based on their selectivity and efficiency. This review highlights the recent advancements in the field of hydrogenation of nitro compounds, carbonyl compounds, and unsaturated hydrocarbons catalyzed by bimetallic nanoparticles. 2021 Wiley-VCH GmbH
Asian Journal of Organic Chemistry, Vol-10, No. 12, pp. 3068-3100.
https://doi.org/10.1002/ajoc.202100495 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118935046&doi=10.1002%2fajoc.202100495&partnerID=40&md5=5399ab954e5d2eac5a87f8a120d5e9f7
Anand S., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India; Pinheiro D., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India; Sunaja Devi K.R., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India
Therapeutic effects of vitamin D and cancer: An overview
calcitriol; cancer; cholecalciferol; single nucleotide polymorphism; vitamin D
Since vitamin D's discovery, strenuous efforts to investigate its physiological exploit and deficiency on human health were done. Our body synthesizes fat-soluble vitamin D when get exposed to sunlight. In recent years, experimental data indicate that sunlight exposure and an adequate level of circulating vitamin D can reduce the incidence of cancer. Several in vitro and in vivo studies also suggest vitamin D as a potentially valuable supplement for cancer treatment and prevention. Nevertheless, there need to be adequate clinical studies performed to substantiate the suppressive ability of vitamin D concerning cancer incidence. Thus, understanding the cellular mechanisms of vitamin D can be advantageous for preventing several chronic diseases. Consequently, this review concentrates on different studies that have been conducted to characterize the outcome of vitamin D in reducing cancer incidence and its medication by cellular progression mechanism. 2021 The Authors. Food Frontiers published by John Wiley & Sons Australia, Ltd and Nanchang University, Northwest University, Jiangsu University, Zhejiang University, Fujian Agriculture and Forestry University.
Varghese J.E.; Balasubramanian B.; Velayuthaprabhu S.; Thirunavukkarasu V.; Rengarajan R.L.; Murugesh E.; Manikandan P.; Arun M.; Anand A.V.
Food Frontiers, Vol-2, No. 4, pp. 417-425.
https://doi.org/10.1002/fft2.97 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129110909&doi=10.1002%2ffft2.97&partnerID=40&md5=a9e3d93675ddfc75ae395e10da6e7c05
Varghese J.E., Department of Human Genetics and Molecular Biology, Bharathiar University, Tamil Nadu, India; Balasubramanian B., Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul, South Korea; Velayuthaprabhu S., Department of Biotechnology, Bharathiar University, Tamil Nadu, India; Thirunavukkarasu V., Department of Biotechnology, Bharathiar University, Tamil Nadu, India; Rengarajan R.L., Department of Animal Science, Bharathidasan University, Tamil Nadu, India; Murugesh E., Nutritional Improvement of Crops, International Centre for Genetic Engineering and Biotechnology, New Delhi, India; Manikandan P., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, India; Arun M., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, India; Anand A.V., Department of Human Genetics and Molecular Biology, Bharathiar University, Tamil Nadu, India