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Influence of higher-order modes on ferroconvection
Using Fourier representations, an elaborate study of regular cellular-convective and chaotic motions in a ferrofluid is made. Investigation is made on the adequacy or otherwise of the minimal mode in studying such motions. Higher-order modes are also considered by adding modes (vertical/horizontal/combined extension). For higher modes, the extensions yield a dynamical system of order greater than three. The characteristic features of extended ferromagnetic-Lorenz models are analyzed using the largest Lyapunov exponent(LE), second largest LE, bifurcation diagram, and phase-space plots. The effect of additional modes on critical modal-Rayleigh (infinitesimal and finite-amplitude ones) numbers and the Rayleigh number at which transition to chaos occurs are examined to report features of ferroconvection hitherto unseen in previous studies. As both horizontal and vertical modes are increased, our findings infer that the dynamical system displays advanced onset of regular convection and delayed chaotic motion. Vigorous-chaotic motion is seen on adding vertical modes, whereas on adding horizontal modes, intense chaos appears with decreased intensity for large values of the scaled Rayleigh number. Most important finding from the study is that as modes are increased (vertical/horizontal), the transition from regular to chaotic motion is greatly modified and leads the system to a hyper-chaotic state. Conventionally, the chaotic or hyper-chaotic state is intermittent with a periodic/quasi-periodic state but it can be retained in the chaotic or hyper-chaotic state by considering moderate values of the Prandtl number and/or by bringing in the ferromagnetic effect. 2022 Author(s). -
Control of chaos and intermittent periodic motions in Rayleigh-Bard convection using a feedback controller
Control of regular convective motion, chaos and periodic motion in the Rayleigh-Bard system is studied by considering a feedback control mechanism that considers the dependence of the heating (cooling) of the two boundary plates on one another. This set up ensures that the different flow regimes (convective, chaotic and periodic) in the system have no mechanical interference and the control remains an external mechanism. The rheostatic influence of feedback control on these flows is demonstrated by investigating in detail the critical Rayleigh number in the case of regular convective motion and the Hopf-Rayleigh number in the case of chaotic motion. For mild coupling between lower and upper boundary temperatures, periodic motions are intermittently observed in an otherwise chaotic regime at times when the system arrives at a situation (fuelling zone) wherein it needs to conserve energy in order to sustain chaos at subsequent times. For strong coupling between the boundary temperatures, an interesting situation arises wherein chaos makes a delayed and brief appearance and gives way to a prolonged spell of periodic motion. Features of the classical Rayleigh-Bard system are retained but each regime makes a delayed appearance. The Author(s), under exclusive licence to Springer Nature B.V. 2024. -
Regulation of axisymmetric Rayleigh-Bard convection using boundary temperature coupling of the two circular plates
Controlled delay of regular, chaotic, and periodic regimes of instabilities is studied in the problem of axisymmetric Rayleigh-Bard convection in a vertical cylinder. A feedback control is assumed at the boundaries, which leads to a coupling of the two boundary temperatures. A classical type solution is impossible in such a situation. Hence, a novel series solution procedure is adopted to arrive at the generalized Lorenz model. Due to feedback control, delayed onset of regular convection is observed and the percentage of such a delay as a function of the controller gain parameter, K , is reported. The changes in the pitchfork bifurcation point, the homoclinic orbit, and the Hopf bifurcation point due to feedback control are highlighted with the help of a bifurcation diagram. This diagram shows that the influence of feedback control is to advance the onset of homoclinic bifurcation and delay the onset of Hopf bifurcation. The results indicate that feedback control shows preference for Hopf bifurcation and is antagonistic toward homoclinic bifurcation. The shortening of the time of existence of the strange attractor intermittent with a periodic/quasi-periodic state, which is preceded by the fully periodic motion as K increases is observed using the largest-Lyapunov-exponent plot, the bar-code plot, and the bifurcation diagram. The results coming out of the Kaplan-Yorke dimension reiterates the results depicted by other indicators concerning the influence of K on chaos. The practical importance of the control strategy that is used in the paper is also mentioned in the paper. 2025 Author(s). -
Antecedents of brand love leading to purchase intention towards refurbished video game consoles
This paper examines different constructs that influence purchase intention of refurbished video game consoles to assess its multi-factorial association with brand love. The data was collected from video game console cafes in the cities of Bangalore and Pune, India. The findings demonstrate that adoption determinants and social influence have a positive influence on brand love, while notably, environmental involvement has a positive influence on an individuals purchase intention. Brand love would not singularly influence positive purchase intention in the context of refurbished video game consoles. The paper clarifies that brand love alone cannot influence the purchasing decision of an individual in the context of refurbished video game consoles, the companies selling or remanufacturing these products can benefit by advertising these products as being environmentally involved. This is the first paper that examines the effects of brand love and purchase intentions in the context of refurbished video game consoles. Copyright 2023 Inderscience Enterprises Ltd. -
Nano-biosensor technologies for diagnosis of infectious diseases
The book offers a thorough exploration of revolutionary nano-biosensor technologies that enables rapid, accurate detection of infectious diseases, critical for effective disease management in today's world. Nano-Biosensor Technologies for Diagnosis of Infectious Diseases delves into the cutting-edge developments in nano-biosensor technology, a transformative innovation for the field of medical diagnostics. Nano-biosensors integrate nanomaterials like nanoparticles, nanowires, and nanotubes with biological recognition elements such as antibodies, nucleic acids, or enzymes to create highly sensitive and specific detection systems. These sensors exploit unique properties of nanomaterials to detect minute quantities of pathogens or biomarkers with remarkable accuracy, enabling early diagnosis and monitoring of infectious diseases. The integration of electrochemical, optical, and piezoelectric detection mechanisms further enhances the versatility and efficiency of these nano-biosensors, allowing for rapid, real-time analysis that is crucial for effective disease management. In the context of infectious diseases, nano-biosensors become particularly significant, as they can facilitate point-of-care testing (POCT), offering rapid and portable diagnostic solutions. This capability is invaluable in resource-limited settings and during outbreaks where traditional laboratory infrastructure may be lacking. The COVID-19 pandemic underscores the importance of swift and accurate diagnostic tools, spurring accelerated innovation and commercialization efforts in this domain. Nano-biosensors are now being developed and deployed to detect a wide range of pathogens with high sensitivity, providing a powerful tool in the global fight against infectious diseases. Nano-Biosensor Technologies for Diagnosis of Infectious Diseases provides a comprehensive overview of these technological advancements, exploring their applications, challenges, and future directions in the diagnosis and management of infectious diseases. 2025 Scrivener Publishing LLC. All rights reserved. -
Bardic Destinies: A Comparative Study of European Poetic and Indian Kavya-Itihasa Tradition
This volume critically explores the cultural significance and fate of the literary in the European and the Indian traditions as it traces the history of the reception of works that have had a deep hold on the lives and sensibilities of people across time and cultures. The book grapples with three major concepts in the humanitiesthe literary, the philosophical/theological and the historical. It looks at Homers reception by Plato; Virgils reception by Christianity; the many responses that The Mahabharata has received over centuries and across cultures in India; and the reception of Kumaravyasas Kumaravyasabharata, among other works, and analyses the understanding of truth, time and history that influence the reading of these works in different times and cultural contexts. Part of the Critical Humanities across Cultures series, this book will be useful for scholars and researchers of philosophy, literature, history, comparative literature, cultural studies and post-colonial studies. 2024 Krishna Kanchith R. -
A study on "student preferece towards the use of Edmodo as a learning platfrom to create responsible learning environment" /
Procedia Social and Behavioral Sciences, Vol.144, pp.142-148, ISSN No: 1877-0428. -
Effects of bio-flocculated algae on the growth, digestive enzyme activity and microflora of freshwater fish Catla catla (Hamilton 1922)
In numerous ways, diets incorporating probiotics are beneficial to host animals. This study was conducted to evaluate the influence of bio-flocculated freshwater algae Chlorella vulgaris on the freshwater fish Catla catla. For the process of flocculating algae, probiotics Lactobacillus acidophilus (10307 MTCC) and Bacillus subtilis (MTCC 441) were used. The experimental fish were fed with Artemia franciscana enriched with flocculated algae for 60days. A control group was fed with unenriched A. franciscana. After the experimental period, there was a significant decrease in anaerobic bacteria and a significant colonization of candidate probiotics in guts of fish fed with flocculated algae-enriched Artemia. This treatment group also had a better growth performance with a higher average body length and weight (8.70.3cm, 5.830.9g) and survival % (981.02). High protease (7.8mg/protein?1) and lipase (2.56 mg/protein?1) activity were also found in the enriched A. franciscana-fed fish group. Comparatively, higher protein, lipid and PUFA/HUFA contents were also reported in this treatment group. The study found that flocculated algae-enriched A. franciscana has a positive impact on gut microflora, growth parameters and survival as compared to the unenriched group, and hence, the flocculated algae serve a dual purpose in rearing of C. catla. This study supports the inference that a bio-flocculated algae-incorporated diet is a preferable method for larval rearing aquaculture. 2020 John Wiley & Sons Ltd -
Explainable AI for Secure and Trustworthy Autonomous Network Management
Rise of AI-driven autonomous networks for managing complex, dynamic infrastructures. While AI optimizes performance, it acts as a black box. This lack of transparency undermines trust and security, making it challenging to validate decisions, detect adversarial attacks, and understand why an AI model made a specific routing, security, or resource allocation decision. Security blind spots face significant challenges in detecting subtle adversarial manipulations or policy exploits because the reasoning behind the model's decisions is hidden. Additionally, poor diagnosability occurs when a network fault or performance degradation occurs, making root cause analysis slow and complex. Hence, the network operators are hesitant to cede control to systems whose actions they cannot verify or audit. Explainable AI (XAI) is critical for bridging this gap, ensuring management decisions are transparent, interpretable, and defensible. The proposed model makes real-Time management decisions. This model uses post-hoc techniques to generate explanations for each decision. It presents actionable insights and cross-references explanations against security policies and known threat patterns to flag anomalous reasoning. 2025 IEEE. -
Leveraging gamification in the metaverse: Strategies for consumer engagement, innovation, and problem-solving across fashion industries
As the world adapted during the pandemic, virtual platforms became groundbreaking in terms of popularity, which brought forth the Metaverse, a transformative digital universe. This development is blurring the lines between gaming and the consumer internet and providing immersive, emotional, and socialized experiences. The variables driving deeper connections are technology readiness, user experience, and social influences. This study explores the effective use of animated agents in VR as an advertising strategy, linking findings to existing research. Much attention is given to gamification and VR, but little focus exists on how these experiences resonate with India's unique cultural context. The integration of Indian traditions into the Metaverse can revolutionize brand engagement, reshaping consumer perceptions and interactions. The paper discusses consumer engagement, readiness, and problem- solving, and it is based on the potential of culturally aligned VR experiences to transform industries, enhance connections, and create new avenues for brand immersion in the digital era. 2025, IGI Global Scientific Publishing. All rights reserved. -
Detecting Fake Information Dissemination using Leveraging Machine Learning and DRIMUX with B-LSTM
Information integrity and public confidence are seriously threatened by the rapid expansion of fake news and misinformation that has resulted from the online broadcast of information. This work focuses on the detection of fraudulent information propagation utilizing machine learning techniques and the Digital Reputation and Influence Measurement Unit (DRIMUX) in order to address this problem. The use of Bidirectional Long Short-Term Memory (B-LSTM) networks into the detection process is something we really advocate. B-LSTM enables the capture of contextual dependencies from both past and future time steps, enhancing the understanding of sequential data. Additionally, DRIMUX provides reputation and influence measurements to assess the credibility of information sources. Experimental analyses on various datasets reveal the promising performance of the suggested methodology, highlighting its potential in preventing the spread of false information and protecting the veracity of digital information. 2024, Ismail Saritas. All rights reserved. -
Effects of light-emitting diode (LED) light sources on in vitro protocorm-like body (PLB) proliferation, plantlet regeneration, and ex vitro acclimatization in Cymbidium Snow Pearl
One of the key environmental elements that influences plant growth in vitro is light quality. Currently, a variety of horticultural plants are regenerated in vitro using light-emitting diode (LED) light sources to produce healthy, high-quality plants that can adapt well to ex vitro transplantation conditions. Investigating the impact of various spectrum light sources at various phases of in vitro regeneration is essential, though. The objective of this research was to examine how red (R), blue (B), white (W), red plus blue (RB, 1:1), red, green (G), and blue (RGB, 1:1:1) LEDs affect the growth of protocorm-like bodies (PLBs), shoot regeneration, and the rooting stages of shoots. The findings showed that B-LEDs were accountable for PLB proliferation, whereas R-LEDs were responsible for increased shoot regeneration and improved growth matrices with shoots and plantlets as compared to other LED treatments. Plant height, leaf count, and dry matter percentage were all higher in the plantlets that were regenerated under R-LED. On the other hand, more root regeneration and longer roots were caused by the B-LED treatment. Plants cultivated under RB LEDs had greater levels of carotenoid pigments, total chlorophyll, chlorophyll a, and chlorophyll b. When compared to other treatments, photosynthetic fluorescence characteristics like maximum quantum yield of PSII (Fv/Fm), photochemical quenching coefficient (qP), relative electron transport in PSII (ETRII), and non-photochemical quenching (NPQ) were lower in plants cultivated under R-LED treatment. The best LED for in vitro Cymbidium Snow Pearl plant regeneration was as follows: The B-LED was good for PLB proliferation, the R-LED was appropriate during shoot regeneration, and the growth of plantlets, the physiological characteristics such as chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid content and number of epidermal cells per unit area were optimum with the plants grown under RB LED light. The Author(s), under exclusive licence to Korean Society for Horticultural Science 2026. -
Effects of citric acid, ascorbic acid, and polyvinylpyrrolidone in overcoming medium browning during micropropagation of Phalaenopsis univivace
The most significant issues in the early phases of plant tissue culture are the browning of the explant and media. The objective of this research was to determine how well citric acid (CTR, 20 and 40 mg L? 1), ascorbic acid (ASA, 200 and 400 mg L? 1), and polyvinylpyrrolidone (PVP, 20 and 40 mg L? 1) could help Phalaenopsis Univivace overcome medium browning during the stages of shoot multiplication (MS medium supplemented with 150 mL L? 1 coconut water, 10 mg L? 1 adenine sulfate, 1 mg L? 1 thidiazuron, and 15g L? 1 sucrose) and rooting of shoots (MS medium with 25 mL L? 1 coconut water, 1 mg L? 1 indole butyric acid, 15g L? 1 sucrose). Numerous metrics were estimated, including the number of shoots that were regenerated during the shoot regeneration stage, the number of roots that were regenerated during the shoot rooting stage, and a number of growth parameters. The quantity of carotenoid and chlorophyll pigments, PSII quantum yield (Fv/Fm), the effective PSII quantum yield (YII), and the non-photochemical quenching (NPQ) were also measured. Additionally, oxidative stress enzyme malonaldehyde (MDA) and preventive antioxidant enzymes including catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) were measured in regenerated shoots and plantlets. The results showed that the medium browning issues during the shoot and root regeneration stages were resolved by supplementing with CTR, ASA, and PVP. In terms of shoot regeneration, rooting of shoots, and enhancing shoot and plantlet growth metrics, 40 mg L? 1 CTR supplementation was determined to be superior overall. The Author(s), under exclusive licence to Korean Society for Horticultural Science 2025. -
Correction: Effects of citric acid, ascorbic acid, and polyvinylpyrrolidone in overcoming medium browning during micropropagation of Phalaenopsis univivace (Horticulture, Environment, and Biotechnology, (2025), 10.1007/s13580-025-00729-4)
In this article the affiliation 2 and 3 have been corrected. Affiliation 2: "Department of Botany, Karnatak University, Dharwad 580003, India" to "CHRIST (Deemed to be University), Bangalore 580003, India" Affiliation 3: "Duy Tam University" to "Duy Tan University" The author name Thanh-Tam Ho was initially written as Than-Tam Ho. The original article has been corrected. The Author(s), under exclusive licence to Korean Society for Horticultural Science 2025. -
Adoption of enterprise risk management erm practices in the zimbabwean banking sector
Corporate failures that occurred in the mid-1990s as well as the global financial crisis that unfolded in the US in 2007 and subsequent banking crises in many countries underscored the need for banking institutions to develop and implement robust risk management systems and controls to prevent the occurrences of such crises. Enterprise risk management (ERM) has emerged as the best practice approach that provided banks with means for mitigating and controlling risks giving rise to such financial crises. Attempts have been made to find out the factors driving the implementation of ERM and the majority of these studies had conflicting newlineconclusions on the effect of some of these factors. Further, weaknesses were noted in variables used by researchers as proxies for ERM adoption. It was noted that several studies used the appointment of a chief risk officer as a variable representing ERM adoption while a number of other researchers focused on surveys or renowned frameworks such as COSO to ascertain the extent of adoption of ERM. These approaches however, had shortcomings. This study therefore sought to address some of the above gaps in literature. The purpose of this study is to determine the degree of adoption of ERM newlinepractices as well to examine factors (adequacy of risk governance structure, newlinequality of organizational culture, intensity of regulatory environment and size of the bank) influencing the adoption and implementation of ERM by banks in Zimbabwe. A mixed method approach was utilized in this study. The population of the study comprised of 18 commercial banks which have been operating in Zimbabwe since the adoption of the multi-currency system in 2009. Respondents for the study were selected using the purposive sampling approach. This was to ensure the respondents had the right experience and expertise to answer questions on enterprise risk management practices newlinewithin their respective banks. -
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Economic and Urban Dynamics: Investigating Socioeconomic Status and Urban Density as Moderators of Mobile Wallet Adoption in Smart Cities
This research paper examines the complex correlation between socioeconomic factors, urban density, and the acceptance of mobile wallet technology in smart cities. The study investigates how socioeconomic status and urban density influence the adoption of mobile wallets. Smart cities have experienced a significant increase in the adoption of mobile payment solutions such as Apple Pay, and Google Pay, noted for their technological innovation and ability to enhance living standards. These digital payment platforms provide ease, security, and efficiency, revolutionizing how individuals engage in financial transactions and navigate urban environments. The study examines the many aspects that impact this phenomenon, focusing on the significance of comprehending how socioeconomic status and urban density influence the acceptance of mobile wallets. The study utilizes a meticulous research technique, which involves evaluating the reliability and validity of constructs, analyzing Heterotrait-Monotrait (HTMT) ratios, conducting tests for discriminant validity, and doing variance inflation factor (VIF) analysis. These measures are taken to ensure the strength and reliability of the report's conclusions. The research's importance is further supported by model fit statistics and hypothesis testing conducted through bootstrapping. The results emphasize that the inclusion of mobile wallet functions, the legal framework, and the development of smart city infrastructure have a substantial influence on the acceptance of mobile wallets. However, the impact of urban density on mobile wallet adoption is more intricate and multifaceted. This study provides significant insights into the dynamic field of technology uptake in urban regions, with implications for politicians, entrepreneurs, and urban planners seeking to promote financial inclusion and technological integration in smart cities. 2024 IEEE. -
Markov based genetic algorithm (M-GA): To mine frequent sub components from molecular structures
Processing the molecular compounds to identify the internal chemical structure is a challenging task in bio-chemical research. Popular approaches, mine the frequent subcomponents from the molecules with chemical and biological properties represented in the form of feature vector histogram. Though this helps to identify the absence or presence of mined feature, calculating the frequency of every frequent substructure involves sub graph isomorphism test which is an NP-Complete process. To overcome the above mentioned bottleneck we proposed Markov based Genetic algorithm (M-GA) in which the chemical descriptors were considered from two-dimensional representations of molecules that classify chemical compounds using mining significant substructure and generates the binary vector that generate pure active classes, singleton reactors, descriptor sets. This method scales down the process of mining substructures that are statistically significant from huge chemical databases. The results shows that the performance of proposed algorithm is improved compared to the existing algorithms. 2020, Research Trend. All rights reserved. -
ELECTRIC EROSION MACHINING BEHAVIOR OF TITANIUM DIOXIDE PARTICLES REINFORCED WITH AL ALLOY COMPOSITE USING TOPSIS APPROACH
This research work describes the optimization of parameters in electric discharge machining (EDM) of AlFeSi (AA8011) alloy composite using the technique for order preference by similarity to ideal solution (TOPSIS) method. Initially, the AA8011 matrix alloy was synthesized with the addition of 10 wt.% TiO2 particles through the stir casting route. Scanning electron microscopy (SEM) was used to examine the morphology of the synthesized composite, which revealed that the TiO2 particles were evenly disseminated within the alloy. The machining factors, such as peak current (Ip), pulse-on time (Ton and pulse-o time (Toff), were chosen as input, whereas the material removal rate (MRR), the surface roughness (SR), and the tool wear rate (TWR) were selected as the output responses. According to the L9 (33array, the machining experiments were conducted using a brass (Br) electrode. By employing the TOPSIS method, the optimum combination of variables was determined. Based on the analysis, the Ip of 10 amps, Ton of 200 s, and Toff of 30 s provide the highest MRR (0.2379 g/min) with lower SR (3.284 m), and TWR (0.0258 g/min). ANOVA ndings exhibited that Ton was found to be the primary noteworthy factor contributing 50.67%, next by Toff (32.98%) and Ip (13.12%), respectively. Finally, the conrmation trials were carried out using the optimal parameters, which veried the predicted results. 2026 World Scientific Publishing Company.