Tri-projection gated cross-modal fusion for robust multilingual emotion recognition
Affective computing; Code-switched emotion recognition; Confidence-aware multimodal fusion; Cross-modal modeling; Multilingual analysis
Existing multimodal approaches in emotion recognition (ER) rely on static or pairwise fusion strategies. These systems do not adequately address the challenges in real-world conversational systems, which require resilience to both multilingual code-switching and variable reliability of multiple modalities. We propose a transformer-based tri-modal emotion identification framework with a novel Tri-Projection Gated Cross-Modal Fusion (T-GCMF) module the first multimodal emotion recognition architecture explicitly designed for code-switched conversational input. T-GCMF simulates tri-modal interactions by explicitly calculating modality-specific confidence and cross-modal consistency, allowing for dynamic suppression of unreliable modalities during inference. Acoustic and visual cues are retrieved using CNNLSTM and deep CNN encoders, respectively. Textual representations are generated using XLM-RoBERTa to handle code-switched language reliably. We introduce Hinglish-MELD, the first multimodal emotion recognition dataset with aligned text, audio, and visual streams containing code-switched conversational content, filling a critical gap in the literature. With an accuracy of 88.3% and an F1-score of 87.0, the suggested confidence-aware fusion technique greatly surpasses unimodal, monolingual, and non-gated multimodal baselines. These findings demonstrate T-GCMF as a successful approach for emotion recognition in linguistically heterogeneous, real-world interactive systems and emphasize the significance of confidence-driven tri-modal integration. 2026
Nair, Suja C.; S., Asha; K.V., Priya; Shaji, Kavya Clare P.; C., Balakrishnan; Kokilavani, T.
Knowledge-Based Systems;Volume;344;Issue;;Article No.;116079;
Restricted Access; Hardcopy may be available in the library
https://doi.org/10.1016/j.knosys.2026.116079 https://www.scopus.com/pages/publications/105037454999?origin=resultslist
Nair S.C., Department of Computer Science and Engineering, Muthoot Institute of Technology and Science, Kochi, India; S. A., Department of Computer Science and Engineering, Sahrdaya College of Engineering and Technology, Thrissur, India; K.V. P., Department of Computer Science and Engineering, School of Engineering and Sciences, SRM University-AP, Andhra Pradesh, Amaravati, 522240, India; Shaji K.C.P., Department of Computer Science and Engineering, Sahrdaya College of Engineering and Technology, Thrissur, India; C. B., Department of Computer Science, CHRIST University, Bengaluru, India; Kokilavani T., Department of Computer Science, CHRIST University, Bengaluru, India
Media's portrayal of women activists - A comparative case study on Malala Yousafzai & Irom Sharmila /
Media has always played a major role in depicting various sections of the society, various aspects of life and people and thus enabled the common man have various perspectives. Sometimes, media becomes selective and refuses to properly execute certain news. Media can play a useful role in dissemination of information, but it when it comes to the process of portraying the women who have stood up for something, is the efficiency same?
Master of Arts in Media and Communication Studies
Impact of Multi-domain Features for EEG Based Epileptic Seizures Classification
Adaptive Boosting; Data Standardization; EEG; Epileptic Seizure; Frequency domain; Gaussian Nae Bayes; Machine Learning; Multi-domain Features; Time domain
Accurate detection and classification of epileptic seizures play a pivotal role in clinical diagnosis and treatment. This study introduces an innovative approach that leverages multi-domain features extracted from Electroencephalogram (EEG) data in conjunction with Supervised learning classification techniques. Initially, EEG data undergoes preprocessing through data standardization, followed by the extraction of essential features per instance, encompassing combination of Time domain, Frequency domain, and Time-Frequency domain features. These extracted feature combinations are subsequently fed into the machine learning-based boosting classifier Adaptive Boosting (ADABOOST) for an accurate and precise classification of epileptic signals. Validation of the proposed method is conducted using EEG data from the BEED (Bangalore EEG Epilepsy Dataset) and BONN (University of BONN, Germany) database to detect epileptic seizures. The experimental results show remarkably high levels of classification accuracy for various conditions: 99% accuracy for BEED data, 98% accuracy for BONN data for classifying seizures from healthy states, and 91% accuracy for classifying seizure onset from seizure events. Furthermore, the study applies the Gaussian Nae Bayes (GNB) classifier to differentiate various types of epileptic seizures, employing evaluation metrics such as the confusion matrix, ROC curve, and diverse performance measures. This method demonstrates significant potential in supporting experienced neurophysiologists decision in the clinical classification of epileptic seizure types. The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
Najmusseher; Banu P.K.N.; Azar A.T.; Kamal N.A.
Lecture Notes on Data Engineering and Communications Technologies, Vol-220, pp. 317-329.
Springer Science and Business Media Deutschland GmbH
Najmusseher, Department of Computer Science, CHRIST (Deemed to Be University) Central Campus, Karnataka, Bangalore, 560029, India; Banu P.K.N., Department of Computer Science, CHRIST (Deemed to Be University) Central Campus, Karnataka, Bangalore, 560029, India; Azar A.T., College of Computer and Information Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia, Faculty of Computers and Artificial Intelligence, Benha University, Benha, 13518, Egypt; Kamal N.A., Faculty of Engineering, Cairo University, Giza, Egypt
Automated epileptic seizure classification using adaptive fast Fourier transform with non-uniform sampling and improved deep belief network
artificial intelligence; BCI; brain-computer interaction; EEG signals; epileptic seizure onset classification; extreme gradient boosting; fast Fourier transformation; IDBN; improved deep belief network
In automated brain-computer interaction (BCI), EEG signals are essential. This research uses AI to detect epileptic seizures, employing data from the BONN dataset (UCI), CHB-MIT dataset (physionet server), and Bangalore EEG Epilepsy Dataset (BEED). The goal is to develop an automated system for accurate seizure detection using adaptive fast Fourier transform with non-uniform sampling (AIFFT-NS) and an improved deep belief network (IDBN) model to enhance classification accuracy. The AIFFT-NS model serves as a channel for transforming spectro-temporal data. Using various EEG datasets, a number of extensive experiments are carried out, resulting in the validation of the efficacy of the proposed approach. High accuracy metrics, with 96.16% for the BEED dataset, 99.41% for the BONN dataset, and 96.31% for the CHB-MIT dataset, represent the evidentiary outcomes. This study emphasises the critical function of AI-facilitated spectro-temporal EEG analysis within the domain of medical diagnostics, going beyond the realm of automated seizure onset classification. Copyright 2024 Inderscience Enterprises Ltd.
Najmusseher; Banu P.K.N.; Janardhan D.C.
International Journal of Intelligent Engineering Informatics, Vol-12, No. 4, pp. 460-512.
https://doi.org/10.1504/IJIEI.2024.142429 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85210168285&doi=10.1504%2fIJIEI.2024.142429&partnerID=40&md5=5447c18cf50a9e3528fdd4df82eb91a5
Najmusseher, Department of Computer Science, CHRIST (Deemed to Be University), Central Campus, Bangalore, 560029, India; Banu P.K.N., Department of Computer Science, CHRIST (Deemed to Be University), Central Campus, Bangalore, 560029, India; Janardhan D.C., Bangalore Medical College and Research Institute, Government of Karnataka Bangalore Medical College and Research Institute, Government of Karnataka, Bangalore, 560002, India
Feature Engineering for Epileptic Seizure Classification Using SeqBoostNet
AdaBoost; Deep Learning; Epileptic Seizure; FFT; LSTM; Machine Learning; UMAP
Epileptic seizure, a severe neurological condition, profoundly impacts patients social lives, necessitating precise diagnosis for classification and prediction. This study addresses the need for reliable automated seizure detection in epilepsy by employing Artificial Intelligence (AI) driven analysis of Electroencephalography (EEG) signals. Key innovations include combining spectral and temporal features using Uniform Manifold Approximation and Projection (UMAP) with Fast Fourier Transformation (FFT), and the introduction of the Sequential Boosting Network (SeqBoostNet), a robust stacking model integrating machine learning and deep learning for effective seizure classification. Validated on benchmark datasets such as the BONN dataset from the UCI repository and the BEED from the Bangalore EEG Epilepsy Dataset, this approach achieved high accuracy, distinguishing Focal and Generalized seizure onsets with 95.91% accuracy and overall average accuracies of 96.71% on BEED and 97.11% on BONN. Existing models frequently struggle with the variability of seizure events. However, these findings underscore the models strength in distinguishing between seizure onset types, even with the inherent fluctuations in seizure patterns. This research not only advances automated seizure detection but also underscores the value of integrating AI with EEG analysis to improve neurological diagnostics, offering the potential for significant enhancements in diagnostic accuracy and patient outcomes. 2025 University of Bahrain. All rights reserved.
International Journal of Computing and Digital Systems;Volume;17;Issue;1;
https://doi.org/10.12785/ijcds/1571020131 https://www.scopus.com/pages/publications/85217538815?origin=resultslist
Najmusseher, Department, of Computer Science, CHRIST (Deemed to be University), Central Campus, Bangalore, 560029, India; Banu N.P.K., Department, of Computer Science, CHRIST (Deemed to be University), Central Campus, Bangalore, 560029, India
Exploration and Analysis of Seizure Spikes Through Spectral Domain Transformation
Correlation analysis; EEG; Epilepsy; Frequency spectrum; Magnitude spectrum; Seizure; Spectral transformation; T-SNE
Seizure detection is the most crucial area of investigation when it comes to understanding brain disorders. This proposed research study embarked on an automated model for epileptic seizure diagnosis by means of different kinds of Spectral transformation using EEG inputs from seizure sufferers and healthy subjects. This automated model accommodates non-invasive brain electrical activity monitoring. This method aims to facilitate the analysis and identification of epileptic seizure states since, monitoring and diagnosing such brain electrical activity is a complex task due to its numerous divisions and underlying features. The primary objective of this research study is to distinguish between EEG-based seizures and healthy individuals. To achieve this goal, a combination of spectral transformation and EEG analysis techniques is utilized. These techniques include examining the frequency spectrum, magnitude spectrum, correlation, and T-Distributed Stochastic Neighboring Embedding (T-SNE) analysis. This analysis yields valuable insights from EEG data, refining the input data and making it more suitable for prediction and identification. The models performance is evaluated using two distinct datasets: real-time EEG data from individuals experiencing epileptic seizures and EEG data from healthy subjects. These datasets are sourced from the Bangalore EEG Epilepsy Dataset (BEED), India and the BONN epilepsy dataset from the UCI repository. In a comparative study of spectral transformation methods, including Complex Fast Fourier Transform (CFFT) and Real-Valued Fast Fourier Transform (RFFT), it is discovered that reducing the data dimension by using feature extraction is not the optimal approach. This simplification leads to the loss of valuable information. Therefore, preserving the full spectrum of EEG characteristics is crucial for gaining valuable insights into brain neuronal functions, ultimately enabling more accurate seizure prediction. The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
Najmusseher; Nizar Banu P.K.; Azar A.T.; Kamal N.A.; Alzahrani A.
Smart Innovation, Systems and Technologies, Vol-394 SIST, pp. 99-113.
Najmusseher, Department of Computer Science, CHRIST (Deemed to Be University) Central Campus, Karnataka, Bangalore, India; Nizar Banu P.K., Department of Computer Science, CHRIST (Deemed to Be University) Central Campus, Karnataka, Bangalore, India; Azar A.T., College of Computer and Information Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia, Faculty of Computers and Artificial Intelligence, Benha University, Benha, 13518, Egypt, Automated Systems and Soft Computing Lab (ASSCL), Prince Sultan University, Riyadh, Saudi Arabia; Kamal N.A., Faculty of Engineering, Cairo University, Giza, Egypt; Alzahrani A., Department of Computer Engineering and Science, Faculty of Computer Science and Information Technology, Al-Baha University, Al-Baha, Saudi Arabia
Explainable artificial intelligence in epilepsy management: Unveiling the model interpretability
EEG; Feature importance; LIME; Machine learning; Seizure classification; SHAP; XAI
The field of epileptic seizure classification has witnessed significant advancements in the use of electroencephalogram (EEG) data for accurate and timely diagnoses. This study introduces a comprehensive framework for EEG-based seizure classification, encompassing data preprocessing and the application of machine learning techniques, specifically the supervised learning classifier known as Extreme Gradient Boosting (Xgboost). Machine learning methods have shown promising accuracy in binary classification tasks, particularly in distinguishing between seizure and healthy EEG signals. However, the need for a robust explanation of these results and decision-making processes is imperative for technical verification and clinical validation, especially for potential clinical applications. Explainable Artificial Intelligence (XAI) emerges as a critical component in addressing this need. In this chapter, we propose and discuss a binary classification model that leverages Xgboost to classify EEG signals as either Seizure or normal, a crucial aspect in epilepsy diagnosis. XAI techniques such as LIME (Local Interpretable Model-agnostic Explanations) and SHAP (Shapley Additive Explanations) are incorporated to elucidate the model's predictions. LIME offers localized interpretability by creating surrogate models for individual predictions, revealing the essential EEG features influencing each classification decision. Conversely, SHAP provides a global perspective on feature importance, shedding light on the collective impact of EEG features on classification outcomes. The synergy between LIME and SHAP enhances our understanding of the model's predictions and the intricate nuances within EEG data. This research highlights the transformative potential of LIME and SHAP in EEG-based seizure classification. The integration of XAI techniques not only enhances the transparency and interpretability of the model but also empowers clinicians and researchers to make more informed decisions, ultimately improving patient care and outcomes in epilepsy management. By bridging the gap between complex EEG data and actionable insights, this study marks a significant paradigm shift in the application of XAI techniques in medical diagnostics. It paves the way for a new era in epilepsy diagnosis and management, where advanced machine learning models guided by LIME and SHAP play a crucial role in revolutionizing healthcare practices. 2025 Elsevier Inc. All rights reserved.
Najmusseher; Nizar Banu, P.K.; Azar, Ahmad Taher; Kamal, Nashwa Ahmad
Explainable AI in Healthcare Imaging for Medical Diagnoses: Digital Revolution of Artificial Intelligence;pp.175-211
https://doi.org/10.1016/B978-0-443-23979-3.00008-7 https://www.scopus.com/pages/publications/105011234107?origin=resultslist
Najmusseher, Department of Computer Science, CHRIST (Deemed to be University), Central Campus, Karnataka, Bangalore, India; Nizar Banu P.K., Department of Computer Science, CHRIST (Deemed to be University), Central Campus, Karnataka, Bangalore, India; Azar A.T., College of Computer and Information Sciences, Prince Sultan University, Riyadh, Saudi Arabia, Automated Systems and Soft Computing Lab (ASSCL), Prince Sultan University, Riyadh, Saudi Arabia, Faculty of Computers and Artificial Intelligence, Benha University, Benha, Egypt; Kamal N.A., Faculty of Engineering, Cairo University, Giza, Egypt
Impact ofFeature Selection Techniques forEEG-Based Seizure Classification
Classification; EEG; Epilepsy; Feature selection; Machine learning; Seizure
A neurological condition called epilepsy can result in a variety of seizures. Seizures differ from person to person. It is frequently diagnosed with fMRI, magnetic resonance imaging and electroencephalography (EEG). Visually evaluating the EEG activity requires a lot of time and effort, which is the usual way of analysis. As a result, an automated diagnosis approach based on machine learning was created. To effectively categorize epileptic seizure episodes using binary classification from brain-based EEG recordings, this study develops feature selection techniques using a machine learning (ML)-based random forest classification model. Ten (10) feature selection algorithms were utilized in this proposed work. The suggested method reduces the number of features by selecting only the relevant features needed to classify seizures. So to evaluate the effectiveness of the proposed model, random forest classifier is utilized. The Bonn Epilepsy dataset derived from UCI repository of Bonn University, Germany, the CHB-MIT dataset collected from the Childrens Hospital Boston and a real-time EEG dataset collected from EEG clinic Bangalore is accustomed to the proposed approach in order to determine the best feature selection method. In this case, the relief feature selection approach outperforms others, achieving the most remarkable accuracy of 90% for UCI data and 100% for both the CHB-MIT and real-time EEG datasets with a fast computing rate. According to the results, the reduction in the number of feature characteristics significantly impacts the classifiers performance metrics, which helps to effectively categorize epileptic seizures from the brain-based EEG signals into binary classification. 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Lecture Notes in Networks and Systems, Vol-613 LNNS, pp. 197-207.
Najmusseher, Department of Computer Science, CHRIST (Deemed to be University), Bengaluru, 560029, India; Umme Salma M., Department of Computer Science, CHRIST (Deemed to be University), Bengaluru, 560029, India
Synthesis, properties, and state-of-the-art advances in surface tuning of borophene for emerging applications
Biomedical applications; Borophene; Energy storage; Surface tuning; Two-dimensional material
Being composed of boron atoms that can be maneuvered to orchestrate low planar hexagonal structures, this two-dimensional material carefully exhibits versatility and has conventional covalent bonds between each atom. Borophene has recently proliferated the scientific research community by storm, trailblazing industries from fine chemicals, electrical equipment manufacturing, and biomedical innovation up to sustainable energy. Here, we provide streamlined information and particulars about the recent advances in the evolution of borophene since its inception and the essence of its electrocatalytic applications. We first introduce the sophisticatedly cultivated progress in borophene's structural, mechanical, optical, and electrical properties and further discuss its variegated polymorphism. Subsequently, we also delve into several capable synthesis techniques and recently concocted surface tuning and doping methods. Finally, we analyze the advancing state-of-the-art applications of this two-dimensional nanomaterial under investigation, ranging from bioimaging, energy storage, electrode reduction, and electrochemical sensing. Further, we have broadly discussed the future insights and challenges that borophene brings. 2024
https://doi.org/10.1016/j.mtsust.2024.100743 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85187959663&doi=10.1016%2fj.mtsust.2024.100743&partnerID=40&md5=7870d8b46b725e681e79ae676aa8fb36
Nakai A., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Rajeev R., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Varghese A., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India
Role of the Functionalized Carbon Nanotubes in Nanodiagnostic Devices and Nanobiomedicines
Biomedical applications; Carbon nanotubes; Functionalization; Nanobiomedicine; Nanodiagnostic devices
Carbon nanotubes (CNTs) have gained immense attention and have emerged as an instrumental tool in various applications including electrochemical sensing, biomedical applications, water purification, and biofuel cells. Their heightened utilization is attributed to their unique properties, such as high specific surface area, enzyme loading capacity, biocompatibility, mass transfer resistance, ease in crossing biological barriers, and ease of functionalization and immobilization. Possessing all these characteristics improves their applicability in biomedical applications including diagnosis, imaging, nanobiomedicine, and drug delivery. The functionalization of CNTs is highly crucial as it improves their biocompatibility and overcomes their limitation of insolubility in water and organic solvents. Functionalization also transforms them into more complex and effective drug delivery and biosensing tools with enormous and specific biomedical properties. This chapter provides a comprehensive discussion of the various structural and chemical properties, types, and synthesis strategies of CNTs. It also gives an insight into the kinds of functionalization for ameliorating their properties and comprehensively discusses their applications in nanodiagnostic devices and nanobiomedicine, ensuring the audience feels informed and knowledgeable. Springer Nature Singapore Pte Ltd. 2025.
Nakai, Aafreen; Rajeev, Rijo; Thomas, Noyal; Varghese, Anitha
Handbook of Material Engineering in Nanobiomedicine and Diagnostics;pp.149-175
https://doi.org/10.1007/978-981-97-7445-6_7 https://www.scopus.com/pages/publications/105007964910?origin=resultslist
Nakai A., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, India; Rajeev R., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, India; Thomas N., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, India; Varghese A., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, India
Progressive crude oil distillation: An energy-efficient alternative to conventional distillation process
Aspen HYSYS; Energy saving; Progressive crude oil distillation; True boiling point
Distillation, the major process in crude oil refineries as of now. In this work we focused the attention to energy saving with respect to an industrial crude oil distillation unit. An alternative to the conventional crude oil distillation model present in the Bharat Petroleum Corporation, Kochi Refinery is proposed and simulated. The theoretical predictions as well as the simulated results indicate that the Progressive crude oil distillation reduces the utility burden as well as increase the extraction of more valuable light components. The simulation was carried out using Aspen HYSYS V8.8.2. Different crudes are taken into account and their properties and amount of distillate are analyzed. The optimization is done in an easy manner rather than the conventional mathematical method, together with the advanced process control tools; make it profitable in the operation in real time. 2018 Elsevier Ltd
Nalinakshan S.; Sivasubramanian V.; Ravi V.; Vasudevan A.; Sankar M.S.R.; Arunachalam K.
https://doi.org/10.1016/j.fuel.2018.11.033 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85057855955&doi=10.1016%2fj.fuel.2018.11.033&partnerID=40&md5=b91845c4b1582e118048564a83ee2bd8
Nalinakshan S., Department of Electrical & Electronics Engineering, The National Institute of Engineering, Manandavadi Road, Mysuru, 570008, Karnataka, India; Sivasubramanian V., Department of Chemical Engineering, National Institute of Technology, Calicut, 673601, Kerala, India; Ravi V., Department of Chemical Engineering, National Institute of Technology, Calicut, 673601, Kerala, India; Vasudevan A., Department of Electronics & Communication Engineering, Christ Deemed to be University, Kengeri, Bangalore, 560074, Karnataka, India; Sankar M.S.R., Department of Chemical Engineering, National Institute of Technology, Calicut, 673601, Kerala, India; Arunachalam K., Process Optimization, BPCL Kochi Refinery, Ernakulam, 682302, Kerala, India
Simulation, optimisation and analysis of energy saving in crude oil distillation unit
Aspen HYSYS simulation; ASTM D86; Atmospheric column; CDU; Crude oil distillation; Energy saving; Optimisation; TBP; TBP curve; True boiling point; Vacuum column
Physical distillation is the major process in crude oil refineries as of now. To ensure quality control in the final products, it is essential to ascertain the true boiling point of the crude oil and the products. The work is mainly concentrated to an industrial crude oil distillation unit. The objective of the paper is to present the simulation and optimisation of crude distillation unit (CDU) along with the analysis of energy saving, using Aspen HYSYS V8.8.2. Different crudes are taken into account, their properties and amount of distillate are analysed. The process optimisation is done in an easier manner using Aspen HYSYS rather than the conventional mathematical method, together with the advanced process control tools; make it profitable in the operation in real-time. The simulation results are validated with the actual plant results. Copyright 2018 Inderscience Enterprises Ltd.
Nalinakshan S.; Velmurugan S.; Vasudevan A.; Arunachalam K.
International Journal of Oil, Gas and Coal Technology, Vol-18, No. 45750, pp. 324-337.
https://doi.org/10.1504/IJOGCT.2018.093142 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85050498827&doi=10.1504%2fIJOGCT.2018.093142&partnerID=40&md5=f14302e0387b9de57d687c489742dd1b
Nalinakshan S., Department of Chemical Engineering, National Institute of Technology, Calicut, Kozhikode, 673601, Kerala, India; Velmurugan S., Department of Chemical Engineering, National Institute of Technology, Calicut, Kozhikode, 673601, Kerala, India; Vasudevan A., Department of Electronics and Communication Engineering, Faculty of Engineering, Christ (Deemed to be University), Bengaluru, Karnataka, India; Arunachalam K., BPCL Kochi Refinery, Ernakulam, Kerala, India
Coronal Elemental Abundances During A-Class Solar Flares Observed by Chandrayaan-2 XSM
Corona, abundances; Flares, FIP bias; Spectroscopy, X-ray
The abundances of low first ionization potential (FIP) elements are three to four times higher in the closed loop active corona than in the photosphere, known as the FIP effect. Observations suggest that the abundances vary in different coronal structures. Here, we use the soft X-ray spectroscopic measurements from the Solar X-ray Monitor (XSM) onboard the Chandrayaan-2 orbiter to study the FIP effect in multiple A-class flares observed during the minimum of Solar Cycle 24. Using time-integrated spectral analysis, we derive the average temperature, emission measure, and the abundances of four elements Mg, Al, Si, and S. We find that the temperature and emission measure scales with the sub-class of flares while the measured abundances show an intermediate FIP bias for the lower A-flares (e.g. A1), while for the higher A-flares, the FIP bias is near unity. To investigate it further, we perform a time-resolved spectral analysis for a sample of the A-class flares and examine the evolution of temperature, emission measure, and abundances. We find that the abundances drop from the coronal values towards their photospheric values in the impulsive phase of the flares and, after the impulsive phase, they quickly return to the usual coronal values. The transition of the abundances from the coronal to photospheric values in the impulsive phase of the flares indicates the injection of fresh unfractionated material from the lower solar atmosphere to the corona due to chromospheric evaporation. However, explaining the quick recovery of the abundances from the photospheric to coronal values in the decay phase of the flare is challenging. 2023, The Author(s), under exclusive licence to Springer Nature B.V.
Nama L.; Mondal B.; Narendranath S.; Paul K.T.
Springer Science and Business Media B.V.
Nama L., Department of Physics and Electronics, Christ (Deemed to be University), Hosur Main Road, Bangalore, India; Mondal B., Physical Research Laboratory, Navrangpura, Gujarat, Ahmedabad, India; Narendranath S., Space Astronomy Group, U R Rao Satellite Centre, ISRO, Bengaluru, India; Paul K.T., Department of Physics and Electronics, Christ (Deemed to be University), Hosur Main Road, Bangalore, India
Derris Indica Leaves Extract as a Green Inhibitor for the Corrosion of Aluminium in Alkaline Medium
Aluminium corrosion; Derris indica; Green inhibitors; Potentiodynamic polarization studies
The corrosion inhibitive effect of Derris indica leaves extract (DILE) on aluminium in 1 M NaOH is investigated at different temperatures. For this purpose, weight loss studies and electrochemical methods including potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) technique are employed. Surface analysis of the treated and untreated aluminium coupons are done by using metallurgical microscopy. About 60.2% of maximum corrosion inhibition efficiency is attained with an optimum inhibitor concentration of 1.2 g/L. Both weight loss and electrochemical studies confirmed that DILE plays a crucial role in the formation of a protective layer over metal surfaces. Also, electrochemical measurements revealed that DILE behaves as a mixed type of corrosion inhibitor. The kinetic parameters and thermodynamic parameters are calculated using Arrhenius theory and transition state theory. Langmuir adsorption isotherm was found to be the best fit and physical adsorption mechanism was proposed. En ineered Science Publisher LLC 2022
Nambiar N.K.; Brindha D.; Punniyakotti P.; Venkatraman B.R.; Angaiah S.
Engineered Science, Vol-17, pp. 167-175.
https://doi.org/10.30919/es8d540 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121988934&doi=10.30919%2fes8d540&partnerID=40&md5=40350c6aa067d93aa31a97cc561ec059
Nambiar N.K., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India, Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India; Brindha D., PG & Research Dept. of Chemistry, Periyar EVR College, Trichy, 620023, India; Punniyakotti P., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India; Venkatraman B.R., PG & Research Dept. of Chemistry, Periyar EVR College, Trichy, 620023, India; Angaiah S., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India
Predictors of behavioral and emotional issues in children involved in custody disputes: A cross sectional study in urban Bengaluru
Child Custody Disputes; Child Mental health; Divorce; India; SDQ
Background: The increasing rates of divorce in urban India has led to the subsequent parental battle for the child's custody. This paper discusses the behavioral and emotional issues of these children in relation to their psychosocial environmental factors and other relevant socio-demographic variables. Methods: We used samples from parent interviews concerning 52 children aged 717-years-old, involved in child custody cases in the Family court of urban Bengaluru. The Strengths and Difficulties Questionnaire was used to measure response variables of behavioral and emotional issues in these children. Predictor models of quantile and multiple linear regression were used to assess the influence of psychosocial environmental factors and socio-demographic variables on the response variables. Results: The predictor models revealed that risk of child suffering emotional and behavioral issues increased with factors such as excessive parental control, change of academic environment, general unrest at school, frequency of child's court visit, child's visitation of non-custodian parent on occasions and vacations, and negatively altered family relationship. The model however intriguingly showed that residing in nuclear household rather than with their grandparents in a non-nuclear household, decreased the risk of mental health issues in these children. Conclusions: This study is a novel attempt to understand the influence of the psychosocial issues on the child's mental health in the context of custody cases in India. Despite the minimum sample size, the findings imply that family-based intervention is the need of the hour in these cases. The implications for clinical practice and research are discussed. 2021 Elsevier B.V.
Nambiar P.P.; Jangam K.V.; Jose A.; Seshadri S.P.
https://doi.org/10.1016/j.ajp.2021.102930 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120302855&doi=10.1016%2fj.ajp.2021.102930&partnerID=40&md5=b427065c75a430aff4f6040947cb83d4
Nambiar P.P., Department of Psychiatric Social Work, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India; Jangam K.V., Department of Psychiatric Social Work, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India; Jose A., Department of Statistics, Christ University, Bengaluru, India; Seshadri S.P., Department of Child and Adolescent Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India
Protection of intellectual property and human rights during health emergencies: an assessment of the patent waiver proposal
Compulsory licensing; COVID-19; Intellectual property rights; Patent waiver; TRIPS; Vaccine
Purpose: Several countries, such as South Africa and India, believe that intellectual property rights (IPRs), including patents, impede the efficient increase in vaccine production to inoculate the global population as they scramble to recover from the COVID-19 pandemic. Their proposal at the World Trade Organization (WTO) to waive these pharmaceutical patents has been met with resistance from a few developed countries, who believe that the abrogation of IPRs is unnecessary, even during a pandemic. The purpose of this paper is to discuss the impact of a potential waiver of medical patents at the WTO versus the status quo of IPR laws in the global economy. Design/methodology/approach: This study examines key arguments from economic and moral standpoints regarding the provisions of the Trade-Related Aspects of Intellectual Property Rights (TRIPS) agreement and other related international agreements and their validity based on the premise of the internalisation of positive externalities posed by vaccines. Findings: The effectiveness of the TRIPS agreement in securing medical access is weak on account of the ability of profit-making multinationals to secure IP rights and on account of the Trans-Pacific Partnership, a multilateral agreement that supports patent evergreening and a period of protection on test data which challenges the access to medicines and the fundamental human right to health. Originality/value: This study examines international IPRs through the lens of human rights and proposes a new system that balances the two. 2022, Emerald Publishing Limited.
International Journal of Human Rights in Healthcare, Vol-17, No. 4, pp. 436-448.
Nambiar V., Department of Economics, Christ (Deemed to be University), Bengaluru, India; Kunte G., Department of Economics, Christ (Deemed to be University), Bengaluru, India; Bhat V., Department of Economics, Christ (Deemed to be University), Bengaluru, India
A novel mathematical investigation of carbon emissions, economic growth, carbon taxation and renewable energy dynamics: stability analysis and forecasting
02.30.Hq 02.60.Lj; 04.20.Ex; auto-regressive integrated moving average; boundedness; carbon emission; carbon tax; GDP; Mathematical modelling; renewable energy consumption
The main cause of global warming is carbon dioxide (CO2) emissions, acting as a significant greenhouse gas. These emissions stem from various sources and significantly contribute to climate change. Fortunately, we have countermeasures like carbon taxes to curb CO2 output. Carbon taxes incentivise a reduction in CO2 production and a shift towards cleaner energy sources by placing a cost on emissions. This paper investigates the interplay between carbon tax policy, carbon emissions, economic output (GDP) and renewable energy consumption. A system of differential equations is constructed to model these relationships based on a comprehensive literature review. Parameter estimation based on real-world data yielded successful fits for the variables. However, the fit for the carbon tax equation is less conclusive, suggesting a more complex relationship with carbon emissions. Stability analysis and the boundedness of the system are carried out. Auto-regressive integrated moving average (ARIMA) forecasting is employed to predict future trends. The results suggest a projected increase in GDP and renewable energy consumption over the next ten years, indicating a potential for a cleaner energy transition. Furthermore, the forecasts anticipate a rise in carbon tax implementation. This analysis emphasises how important carbon taxes are for cutting emissions and advancing renewable energy. Results indicate that carbon taxes can promote decarbonisation and economic growth, despite the complicated link between them and CO2 emissions. Both GDP growth and the use of renewable energy are anticipated to increase. However, policies must be improved to combat climate change effectively. Future studies should improve parameters and investigate other relevant elements to promote a low-carbon future. Indian Academy of Sciences 2025.
Namboothiri, V S Manasi; Veeresha, P.; Sherly, K.
Pramana - Journal of Physics;Volume;99;Issue;4;Article No.;155;
https://doi.org/10.1007/s12043-025-03027-x https://www.scopus.com/pages/publications/105022684473?origin=resultslist
Namboothiri V.S.M., Centre for Mathematical Needs, Department of Mathematics, CHRIST University, Bengaluru, 560 029, India; Veeresha P., Centre for Mathematical Needs, Department of Mathematics, CHRIST University, Bengaluru, 560 029, India; Sherly K., Centre for Mathematical Needs, Department of Mathematics, CHRIST University, Bengaluru, 560 029, India
Integrating AI and Cybersecurity: Advancing Autonomous Vehicle Security and Response Mechanisms
AI integration; Dynamic response mechanisms; Risk mitigation; Vehicle security operation centers
The rapid evolution of autonomous and connected vehicles has led to their integration with numerous technologies and software, rendering them vulnerable targets for cybersecurity attacks. While efforts have traditionally focused on preventing these attacks, the escalating risk underscores the importance of also vindicating their wallop. Nevertheless, this procedure is often onerous & facade scalability confronted, particularly due to connectivity issues in automobiles. This research advises a vehicle-based vibrant imposition response scheme, enabling swift responses to a variety of incidents and reducing reliance on external security centers. The classification encompasses an inclusive range of probable retorts, a procedure for evaluating retorts, & innumerable assortment approaches. Implemented on an embedded platform, the solution was evaluated using two distinct cyberattack use cases, highlighting its adaptability, responsiveness, volume for dynamic arrangement constraint alterations & nominal memory trail. Concurrently, this paper presents an innovative (AVSF) that synergistically integrates (AI) and cybersecurity techniques to fortify AV resilience against evolving threats. Additionally, the framework incorporates advanced cybersecurity measures such as encryption, authentication, and intrusion detection to mitigate vulnerabilities and safeguard critical AV systems. The fusion of AI and cybersecurity not only enhances AV security posture but also enables intelligent cyber threat monitoring and response capabilities. Extensive simulations and experimental evaluations demonstrate the efficacy of the AVSF in real-time scenarios, contributing to the development of robust security solutions for autonomous vehicle deployment and advancing safer transportation systems in the era of AI-driven mobility. 2024 IEEE.
Namburi V.L.; Adapa S.R.; Chamala S.S.K.; Yerram M.; Gupta P.; Upreti K.
2024 International Conference on Emerging Trends in Networks and Computer Communications, ETNCC 2024 - Proceedings, pp. 253-258.
Institute of Electrical and Electronics Engineers Inc.
Namburi V.L., Software Systems Engineer Danlaw Inc, MI, United States; Adapa S.R., Software Engineer OpenLogix LLC, MI, United States; Chamala S.S.K., Software Developer Software Bots Inc, MI, United States; Yerram M., Computer Science with IOT VNRVJIET, Hyderabad, India; Gupta P., Computer Science Engineering ADGIPS, Delhi, India; Upreti K., Dept. of Computer Science, Christ University, Delhi NCR Campus, India
Continuity and changes in food consumption pattern among Tibetan refugee community in India
Dietary intake; Food Continuity; Food insecurity; Health; Nutrition
The Food consumption pattern of refugee communities is being carried out by many scholars and few acknowledged the food continuity, its implications on the health of refugees in the host country. The present study highlights food continuity among Tibetan refugees in the Bylakuppe settlement, India. 200 household data were administered to understand food consumption patterns by employing a structured household questionnaire. Simultaneously, 23 individual data were collected consisting of first migrants (15) and second-generation (8) for the qualitative study. Households derive energy mainly from carbohydrates and animal fats, and there is a prevalence of food insecurity among the Tibetan community. It is a proven fact that food insecurity will have serious health consequences in terms of emotional and mental well-being and suggest the need for further study of food insecurity among Tibetan refugees across the world. 2021
Future of Food: Journal on Food, Agriculture and Society, Vol-9, No. 3, pp. 1-11.
https://doi.org/10.17170/kobra-202102163264 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120324883&doi=10.17170%2fkobra-202102163264&partnerID=40&md5=ce97d501cab34a050989541141e7272b
Namgha T., Dalai Lama Institute for Higher Education, Affiliated to Bengaluru University; Ganesh L., School of Business and Management CHRIST, Deemed to be University, Hosur Road, Bangalore, 560029; Jyotishi A., School of Development, Azim Premji University, Bangalore, India
Influence of remittances oncapital endowment of Tibetan refugees in India
India; Livelihood; Migration; Remittances; Tibetan refugees
Purpose: An issue concerning Tibetan refugees in India is the poverty and unemployment among Tibetan youth. This often leads to households adopting a strategy of sending one of its members abroad towards North American or European countries in search of better income opportunities. Incomes in the form of remittances from these forward migrants have numerous impacts on living standard of left behind families. This study aims to focus on the influence of forward migrants remittances on livelihood in terms of human, financial and social capital development of Tibetan refugees in India. Design/methodology/approach: The paper includes 400 households from high-economic and low-economic-access regions of Tibetan settlements in India. Ordinary least square method was used to study these impacts. Findings: Findings show that remittances have significantly influenced human and financial capital development. However, it was found to be statistically not significant for social capital development. Originality/value: The present paper is original work. 2019, Emerald Publishing Limited.
International Journal of Development Issues, Vol-18, No. 3, pp. 290-309.
https://doi.org/10.1108/IJDI-01-2019-0014 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067068873&doi=10.1108%2fIJDI-01-2019-0014&partnerID=40&md5=a57aca469d68d93df2b5f0f192795a7a
Namgha T., Dalai Lama Institute for Higher Education, Bengaluru, India; Ganesh L., Institute of Management, Christ (Deemed to be the University), Bengaluru, India; Jyotishi A., School of Business, Amrita Vishwa Vidyapeetham, Coimbatore, India