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392 results on '"Sowmya, G."'

3. Bifractal behavior of Solar supergranulation and magnetic activity

Author

Rajani, G., Sowmya, G. M., Paniveni, U., and Srikanth, R.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We study the complexity and scale of the supergranular network across the 23rd solar cycle, using the Ca II K digitized intensitygrams from the Kodaikanal Solar Observatory (KSO). Enhancing our previous data and refining our data analysis, we study supergranular fractal dimension as a function of cell size. We find that across the cycle phases, the cells show a bifractal behavior, with approximately half the larger cells in the studied scale range showing a slightly greater fractal dimension than the smaller cells. We also study the discrepancy between supergranular scale as determined by direct inspection methods (around 17 Mm) and autocorrelation (around 30 Mm), and attribute this to a preferential selection of well defined cells in the former case., Comment: 10 pages, 2 figures; Accepted for publication in Acta Astron

Published
2023

4. Dependence of Solar supergranular lifetime on surface magnetic activity and rotation

Author

M., Sowmya G., G., Rajani, Paniveni, U., and Srikanth, R.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

The lifetimes and length-scales for supergranular cells in active and quiescent regions of the Solar chromosphere, and the relation between the two, were studied using a time series of Ca II K filtergrams. The lifetimes, in contrast to supergranular length scale and fractal dimension, show no significant dependence on Solar latitude, suggesting that cell lifetimes are independent of the differential rotation and a possible supergranular super-rotation. The functional form of the relation was obtained guided by a comparison of the distributions of the two supergranular parameters. We infer a linear dependence of cell lifetime on area, which can be understood by the assumption of the network's evolution via a diffusion of the magnetic field. Our analysis suggests that the diffusion rate in quiet regions is about 10% greater than in active regions., Comment: 15 pages, 10 figures; Accepted for publication in the Astrophysical Bulletin

Published
2023

7. Control Strategies for Blood Pressure Regulation in the Diabetic Patients Post Surgery

Author

Gopi Krishna Rao, P. V., Hanuma Naik, R., Sreenivasa Rao, N., Sowmya, G., Rajasekhar, M. V., Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Shrivastava, Vivek, editor, Bansal, Jagdish Chand, editor, and Panigrahi, B. K., editor

Published
2024
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14. Supergranular Fractal Dimension and Solar Rotation

Author

M., Sowmya G., G., Rajani, Paniveni, U., and Srikanth, R.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We present findings from an analysis of the fractal dimension of solar supergranulation as a function of latitude, supergranular cell size and solar rotation, employing spectroheliographic data in the Ca II K line of solar cycle no. 23. We find that the fractal dimension tends to decrease from about 1.37 at the equator to about 1 at 20 degree latitude in either hemisphere, suggesting that solar rotation rate has the effect of augmenting the irregularity of supergranular boundaries. Considering that supergranular cell size is directly correlated with fractal dimension, we conclude that the mechanism behind our observation is that solar rotation influences the cell outflow strength, and thereby cell size, with the latitude dependence of the supergranular fractal dimension being a consequence thereof., Comment: 15 pages; 5 figures; Accepted for publication in Research in Astronomy and Astrophysics

Published
2022
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16. Solar supergranular fractal dimension dependence on the Solar cycle phase

Author

Rajani, G., Sowmya, G. M., Paniveni, U., and Srikanth, R.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We study the complexity of the supergranular network through fractal dimension by using Ca II K digitized data archive obtained from Kodaikanal solar observatory. The data consists of 326 visually selected supergranular cells spread across the 23rd solar cycle. Only cells that were well-defined were chosen for the analysis and we discuss the potential selection effect thereof, mainly that it favors cells of a smaller size (< 20 Mm). Within this sample, we analyzed the fractal dimension of supergranules across the Solar cycle and find that it is anticorrelated with the activity level., Comment: Close to the published version; 16 pages, 8 figures

Published
2022
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17. Distribution of HCV genotypes among patients attending south Indian tertiary care centre

Author

Masood Ahmed Tahashildar, Morubagal Raghavendra Rao, Umme Hani, Sowmya G Shivappa, Rashmi P Mahale, Anil Kumar, and Ravindran Kumar

Subjects
hepatitis c virus, genotyping, hepatitis, hepatocellular carcinoma, Medicine, Medicine (General), R5-920
Abstract

Background: Globally Hepatitis C Virus (HCV) is considered to cause one of the major infection burdening public health. Presently HCV is categorized into seven genotypes and 67 subtypes, transmitted through various routes and vary in their pathogenesis. Aims and Objectives: Present work aimed to detect the prevalent HCV genotypes among individuals attending tertiary care hospital. Material and Methods: A hospital based cross sectional study was carried out. Patient blood samples received for screening of HCV antibodies were included in this study. Serum was subjected to Enzyme-Linked Immunosorbent Assay (ELISA) or Chemiluminescent Immunoassay (CLIA) and samples found to be positive for HCV antibodies were subjected to viral RNA extraction and genotyping. Results: Forty-two samples were found to be positive for HCV antibodies out of 19526 samples screened and were further subjected to genotyping. The genotypes identified were genotype-1, genotype-3, and genotype-4. Conclusion: Genotype-1 and genotype-3 predominate in this region. However, genotype-4 detection was novel to this region and has never been reported earlier. This study highlights the importance of screening HCV-positive patients for genotyping.

Published
2023

22. List of contributors

Author

Abdulhayan, Sayed, primary, Amin, Imran ul, additional, Arun Sampaul Thomas, G., additional, Bhat, Ishfaq Hussain, additional, Bose, Ranit Kumar, additional, Dar, Aehsan Ahmad, additional, Dhamodharan, M., additional, Ebenesar Anna Bagyam, J., additional, Fathima, Y., additional, Gupta, Chabi, additional, Helen, D., additional, Hepziba Gnanamalar, R., additional, Kalaiarasi, H., additional, Kavitha, M., additional, Kirubahari, S., additional, Mahesh Nayak, B., additional, Muthukaruppasamy, S., additional, Pachiyappan, Sathish, additional, Padmapriya, V., additional, Paramasivan, Senthilmurugan, additional, Polisetty, Aruna, additional, Pratiksha, S., additional, Rajalakshmi, N.R., additional, Ramadass, Ravichandran, additional, Ramu, Senthil Kumar, additional, Sai Krishnan, S., additional, Sankar, Mallika, additional, Saravanan, S., additional, Saravanan, K., additional, Sathish Kumar, S., additional, Sathyanarayana, N., additional, Sharma, Anuradha, additional, Sofiya, L., additional, Sowmya, G., additional, Srivastava, Anubha, additional, Suba Geetha, J., additional, Sujatha, D.N., additional, Surya, S., additional, Thanga Mariappan, L., additional, Verma, Babita, additional, and Vimalkumar, M., additional

Published
2023
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26. Deep CNN Based Whale Optimization for Predicting the Rice Plant Disease in Real Time

Author

Reddy, S. Sai Satyanarayana, Sowmya, G., Reddy, Vudara Bhaskar, Kumar, Boodidha Deepak, Kumar, Ashwani, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Kumar, Ashwani, editor, Fister Jr., Iztok, editor, Gupta, P. K., editor, Debayle, Johan, editor, Zhang, Zuopeng Justin, editor, and Usman, Mohammed, editor

Published
2022
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44. Neonatal Meningitis with Septicemia by Elizabethkingia meningoseptica: A Case Report

Author

Neetha S. Murthy, Sowmya G. Shivappa, A. Tejashree, Krishna M.V.S. Karthik, and R. Deepashree

Subjects
septicemia, elizabethkingia meningoseptica, meningitis, multidrug resistant, neonate, Medicine
Abstract

Elizabethkingia is ubiquitary aerobic bacillus abundantly found in the community as well as hospital environments. Elizabethkingia meningoseptica is an emerging nosocomial pathogen with an elemental ability to acclimate and survive in diversified environmental circumstances. Prompt diagnosis and an early therapeutic intervention are preponderant in the management of these infections. We report a case of meningitis with septicemia caused by E. meningoseptica in a 1-day-old outborn neonate. The child was stabilized with anticonvulsants and, based on laboratory findings, the neonate was started on ciprofloxacin in addition to symptomatic management. The child responded well to the treatment and was discharged on day 7 after treatment initiation. Perceptive treatment protocols backed with accurate laboratory evidence remain instrumental to avert unpropitious outcomes while combatting rare multidrug-resistant opportunistic infections.

Published
2022
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46. Closed-Loop Vision-Based Ball Balancer

Author

Sakthi Ganesh, M., Anitha Roseline, J., Sowmya, G., Vishwa Raj, V., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Dash, Subhransu Sekhar, editor, Panigrahi, Bijaya Ketan, editor, and Das, Swagatam, editor

Published
2021
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47. Convergence of a Finite-Time Zhang Neural Network for Moore–Penrose Matrix Inversion

Author

Sowmya, G., Thangavel, P., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Pandian, A. Pasumpon, editor, Palanisamy, Ram, editor, and Ntalianis, Klimis, editor

Published
2021
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50. Baud Rate-Based Hierarchical Multihop Routing Protocol for WSNs

Author

Sowmya, G. V., Kiran, M., Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Janyani, Vijay, editor, Singh, Ghanshyam, editor, Tiwari, Manish, editor, and Ismail, Tawfik, editor

Published
2020
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