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Kumar VD, Rajesh P, Geman O, Craciun MD, Arif M, Filip R. “Quo Vadis Diagnosis”: Application of Informatics in Early Detection of Pneumothorax. Diagnostics (Basel) 2023; 13:diagnostics13071305. [PMID: 37046523 PMCID: PMC10093601 DOI: 10.3390/diagnostics13071305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/22/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
A pneumothorax is a condition that occurs in the lung region when air enters the pleural space—the area between the lung and chest wall—causing the lung to collapse and making it difficult to breathe. This can happen spontaneously or as a result of an injury. The symptoms of a pneumothorax may include chest pain, shortness of breath, and rapid breathing. Although chest X-rays are commonly used to detect a pneumothorax, locating the affected area visually in X-ray images can be time-consuming and prone to errors. Existing computer technology for detecting this disease from X-rays is limited by three major issues, including class disparity, which causes overfitting, difficulty in detecting dark portions of the images, and vanishing gradient. To address these issues, we propose an ensemble deep learning model called PneumoNet, which uses synthetic images from data augmentation to address the class disparity issue and a segmentation system to identify dark areas. Finally, the issue of the vanishing gradient, which becomes very small during back propagation, can be addressed by hyperparameter optimization techniques that prevent the model from slowly converging and poorly performing. Our model achieved an accuracy of 98.41% on the Society for Imaging Informatics in Medicine pneumothorax dataset, outperforming other deep learning models and reducing the computation complexities in detecting the disease.
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Affiliation(s)
- V. Dhilip Kumar
- School of Computing, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai 600062, India; (V.D.K.); (P.R.)
| | - P. Rajesh
- School of Computing, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai 600062, India; (V.D.K.); (P.R.)
| | - Oana Geman
- Department of Computers, Electronics and Automation, Faculty of Electrical Engineering and Computer Science, Stefan cel Mare University of Suceava, 720229 Suceava, Romania
- Correspondence: (O.G.); (M.D.C.)
| | - Maria Daniela Craciun
- Interdisciplinary Research Centre in Motricity Sciences and Human Health, Ştefan cel Mare University of Suceava, 720229 Suceava, Romania
- Correspondence: (O.G.); (M.D.C.)
| | - Muhammad Arif
- Department of Computer Science, Superior University, Lahore 54000, Pakistan;
| | - Roxana Filip
- Faculty of Medicine and Biological Sciences, Stefan cel Mare University of Suceava, 720229 Suceava, Romania;
- Suceava Emergency County Hospital, 720224 Suceava, Romania
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Annapandi P, Ramya R, Kotaiah N, Rajesh P, Subramanian A. Optimal energy management system for the design of off grid hybrid renewable energy systems: A hybrid technique. IFS 2023. [DOI: 10.3233/jifs-221176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This manuscript proposes an efficient hybrid strategy to obtain the optimal solution of operational cost reduction, size reduction of hybrid renewable energy sources and optimal power flow control for off-grid system. Here, off-grid is incorporated with photovoltaic array, wind turbine, Diesel generator, and battery energy storage system. The hybrid method is joint execution of Giza Pyramids Construction (GPC) and Billiards-inspired optimization algorithm (BOA) hence it is named GPC-BOA technique. The major purpose of proposed method is minimizing the operational cost as well as size of hybrid renewable energy sources and improves the power flow of system. In this energy management system of off-grid provides cost reduction which includes the generation, replacement, operating and maintenance, cost of fuel consumption, cost of exchanged power with grid, and the penalty for emissions. Here, the GPC method is employed for forecasting the load requirement of system. The BOA technique optimizes the off-grid system through the deliberation of forecasted load requirement. At last, the proposed approach is performed on MATLAB platform and the performance is assessed using existing techniques.
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Affiliation(s)
- P. Annapandi
- Department of Electrical and Electronics Engineering, Francis Xavier Engineering College, By pass Road, Vannarpet, Tirunelveli, Tamil Nadu, India
| | - R. Ramya
- Department of Electronics and Communication Engineering, Kings Engineering College, Chennai, India
| | - N.C. Kotaiah
- Department of Electrical and Electronics Engineering, RVR & JC College of Engineering, Guntur, India
| | - P. Rajesh
- Department of Electrical and Electronics Engineering, Anna University, Chennai, India
| | - Arun Subramanian
- Department of Electrical and Electronics Engineering, Kongunadu College of Engineering and Technology, Tholurpatti, Tamil Nadu, India
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Rajesh P, Kannan R, Vishnupriyan J, Rajani B. Optimally detecting and classifying the transmission line fault in power system using hybrid technique. ISA Trans 2022; 130:253-264. [PMID: 35428477 DOI: 10.1016/j.isatra.2022.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/17/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
In this paper, a hybrid system is proposed to predict and classifies the power system transmission line faults. The proposed technique is the consolidation of both the truncated singular value decomposition (TSVD) and Human urbanization algorithm (HUA) based Recurrent Perceptron Neural Network (RPNN), and hence it is named as TSVD-HUARPNN technique. TSVD is matrix decomposition, this technique qualify the outcome it as fast or not. In the proposed work, the qualification of the results from the TSVD is improved by a lemma theorem; it is a proven proposition which is used to obtain a larger and optimal result. For that reason, it is also known as a "helping theorem" or an "auxiliary theorem". Here, it has two modules for power system fault analysis: (i) fault detection, (ii) fault classification. The first process of the proposed system is the generation of the dataset of normal and abnormal conditions of transmission line parameters of power system using TSVD. The extracted dataset is assessed by HUA-based RPNN system to classify the fault analysis that occurs in transmission system. The TSVD-HUARPNN system is used to predict and classify the fault present in the transmission line. The proposed TSVD-HUARPNN system ensures the system with less complexity for the detection and classification of the fault, therefore the accuracy of the system is increased. By then, the proposed model is activated in MATLAB/Simulink, its performance is evaluated with the existing models. The performance with noise at 20 dB of the proposed technique is 99.77%.
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Affiliation(s)
- P Rajesh
- Department of Electrical and Electronics Engineering, Anna University, Chennai, India.
| | - R Kannan
- Professor, Department of Electrical and Electronics Engineering, Nehru Institute of Engineering and Technology, Coimbatore-641 105, India.
| | - J Vishnupriyan
- Centre for Energy Research, Chennai Institute of Technology, Chennai 600069, Tamilnadu, India.
| | - B Rajani
- Department of Electrical and Electronics Engineering, Aditya college of Engineering & Technology, Surampalem, Andhra Pradesh, India
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Rajesh P, Shajin FH, Kannayeram G. A novel intelligent technique for energy management in smart home using internet of things. Appl Soft Comput 2022. [DOI: 10.1016/j.asoc.2022.109442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Kumar VD, Rajesh P, Polat K, Alenezi F, Althubiti SA, Alhudhaif A. Wi-Fi signal-based human action acknowledgement using channel state information with CNN-LSTM: a device less approach. Neural Comput Appl 2022. [DOI: 10.1007/s00521-022-07630-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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6
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Rajesh P, Kavitha R. Elderly people activity monitoring with involved binary sensors and Deep Convolution Neural Network. Neural Comput Appl 2022. [DOI: 10.1007/s00521-022-07268-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gampala V, Rathan K, S CN, Shajin FH, Rajesh P. Diagnosis of COVID-19 patients by adapting hyper parametertuned deep belief network using hosted cuckoo optimization algorithm. Electromagn Biol Med 2022; 41:257-271. [PMID: 35491901 DOI: 10.1080/15368378.2022.2065679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
COVID-19 is an infection caused by recently discovered corona virus. The symptoms of COVID-19 are fever, cough and dumpiness of breathing. A quick and accurate identification is essential for an efficient fight against COVID-19. A machine learning technique is initiated for categorizing the chest x-ray images into two cases: COVID-19 positive case or negative case. In this manuscript, the categorization of COVID-19 can be determined by hyper parameter tuned deep belief network using hosted cuckoo optimization algorithm. At first, the input chest x-ray images are pre-processed for removing noises. In this manuscript, the deep belief network method is enhanced by hosted cuckoo optimization approach for getting optimum hyper tuning parameters. By this, exact categorization of COVID-19 is attained effectively. The proposed methodology is stimulated at MATLAB. The proposed approach attains 28.3% and 23.5% higher accuracy for Normal and 32.3% and 31.5% higher accuracy for COVID-19, 19.3% and 28.5% higher precision for Normal and 45.3% and 28.5% higher precision for COVID-19, 20.3% and 21.5% higher F-score for Normal and 40.3% and 21.5% higher F-score for COVID-19. The proposed methodology is analyzed using two existing methodologies, as Convolutional Neural Network with Social Mimic Optimization (CNN-SMO) and Support Vector Machine classifier using Bayesian Optimization algorithm (SVM-BOA).
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Affiliation(s)
- Veerraju Gampala
- Department of Computer Science and Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, AP, India
| | | | - Christalin Nelson S
- Systemics Cluster, School of Computer Science, University of Petroleum and Energy Studies(UPES), Energy Acres, Bidholi, Dehradun, Uttarakhand, Dehradun, India
| | - Francis H Shajin
- Department of Electronics and Communication Engineering, Anna University, Chennai,India
| | - P Rajesh
- Department of Electrical and Electronics Engineering, Anna University, Chennai, India
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Srinivasan D, Senthil D, Senthil Eagappan AR, Rajesh P, Prakash K, Shanmugavadivel G. Evaluation of the mother's anxiety and child's fear in two different age groups in the child's first and second dental visit. Indian J Dent Res 2022; 33:126-129. [DOI: 10.4103/ijdr.ijdr_256_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Khan T, Rajesh P, Praveen D, Jose KVJ, Yaragorla S. Brønsted Acid Promoted Thermal-Ring-Rearrangement of Fluorenopyrans to 2-(1 H
-Inden-3-yl)-9 H
-fluoren-3-ols Bearing Two All-Carbon-Quaternary Centres. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tabassum Khan
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
| | - P. Rajesh
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
| | - Dudam Praveen
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
| | - K. V. Jovan Jose
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
| | - Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
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Yaragorla S, Rajesh P. An efficient Benzannulation protocol for the synthesis of 9,9-Diphenyl-9H
-fluorenols using Intramolecular Allene Friedel-Crafts Annulation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900895] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry; Gurbaksh Building, W-16, 17; University of Hyderabad; P.O. Central University, Gachibowli 5000046 Hyderabad Telangana State India
| | - P. Rajesh
- School of Chemistry; Gurbaksh Building, W-16, 17; University of Hyderabad; P.O. Central University, Gachibowli 5000046 Hyderabad Telangana State India
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Yaragorla S, Rajesh P. Regiospecific formal [3 + 2] annulation of tert-propargyl alcohols with acyclic 1,3-diketones via the cycloisomerization of homoallenyl ketones. Org Biomol Chem 2019; 17:1924-1928. [DOI: 10.1039/c8ob02158a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A one-pot, regiospecific synthesis of dihydrofurans bearing a quaternary centre is developed from the formal [3 + 2] annulation of tert-propargyl alcohols and 1,3-diketones through the SN2I mechanism to form homoallenyl ketone and a subsequent cycloisomerization reaction.
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Affiliation(s)
| | - P. Rajesh
- School of Chemistry
- University of Hyderabad
- India
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12
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Yaragorla S, Rajesh P, Pareek A, Kumar A. Ca(II)-Mediated Regioselective One-pot Sequential Annulation of Acyclic compounds to Polycyclic Fluorenopyrans. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - P. Rajesh
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - Abhishek Pareek
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - Ankit Kumar
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
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Panigrahi A, Saranya C, Sundaram M, Vinoth Kannan SR, Das RR, Satish Kumar R, Rajesh P, Otta SK. Carbon: Nitrogen (C:N) ratio level variation influences microbial community of the system and growth as well as immunity of shrimp (Litopenaeus vannamei) in biofloc based culture system. Fish Shellfish Immunol 2018; 81:329-337. [PMID: 30016684 DOI: 10.1016/j.fsi.2018.07.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 06/17/2018] [Accepted: 07/13/2018] [Indexed: 06/08/2023]
Abstract
Biofloc technology (BFT) is a novel modern aquaculture farming technique used to reduce toxic nitrogen concentration, act as in situ food source and eradicate pollutants using carbon and therefore to control C:N ratio in an aquaculture system. In this study, effect of different C:N ratios of a biofloc based system on water quality such as the level of Total ammonia nitrogen (TAN) nitrite-nitrogen (NO2--N) and nitrate nitrogen (NO3--N) were explored. Further, the growth and immunity status of shrimp L. vannamei under the influence of different C:N ratios were evaluated. Two of the C:N ratios (15 and 20) could significantly (P < 0.05) reduce TAN, NO2-N and NO3-N levels (0.456 ± 0.01, 0.145 ± 0.09, and 0.102 ± 0.02 ppm) compared to control (1.45 ± 0.1, 0.749 ± 0.14 and 0.675 ± 0.16 ppm). Large variations in the frequency distribution of operational taxonomic units (OTUs) for the bacterial community in water with different C:N ration (BFT) and control were observed. Vibrios often considered as opportunistic pathogens, where the most dominant bacterial flora of water in control (79%) and C:N5 (37%) group. In C:N10, Thauera (62%) was most represented genus. Similarly, Attheyaceae (56%), followed by Peridiniaceae (30%) were the most dominant groups in C:N15 treatment. The diversity of bacterial flora was more spread in C:N20 treatments with Psychrobacter (26%), Proteobacteria (25%) and Peridiniaceae (20%) as the major groups. The trend of Vibrio dominance decreased with the increase in C:N ratios and thus confirming the dominance of heterotrophic bacteria in high C:N ratio groups. Upon challenge with pathogens, shrimps from C:N10, C:N15 and C:N20 groups showed significantly higher survival (P < 0.05) compared to the C:N5 and control group. Similarly, better growth rate was also observed in BFT tanks compared to control both during the culture and at harvest. Comparatively higher expression of four immune-related genes (ras-related nuclear gene (RAN), serine proteinase gene (SP), prophenoloxidase activating enzyme (PPAE), and crustin were observed in different C:N ratio ponds than control and these were in increasing trend with the C:N ratio. Gene expression analysis showed that the transcripts of those immune genes were significantly increased among all C:N treatments than that of control. Overall, these findings demonstrated that with optimum C:N ratio, BFT can be used to optimize the bacterial community composition for both optimal water quality and optimal shrimp health. This study thus indicates the possibility of obtaining better performance of L. vannamei culture with proper adjustment of C:N ratio in a biofloc based system.
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Affiliation(s)
- A Panigrahi
- Crustacean Culture Division, ICAR-Central Institute of Brackishwater Aquaculture, #75, Santhome High Road, Raja Annamalai Puram, Chennai, Tamil Nadu 600028, India.
| | - C Saranya
- Crustacean Culture Division, ICAR-Central Institute of Brackishwater Aquaculture, #75, Santhome High Road, Raja Annamalai Puram, Chennai, Tamil Nadu 600028, India
| | - M Sundaram
- Crustacean Culture Division, ICAR-Central Institute of Brackishwater Aquaculture, #75, Santhome High Road, Raja Annamalai Puram, Chennai, Tamil Nadu 600028, India
| | - S R Vinoth Kannan
- Crustacean Culture Division, ICAR-Central Institute of Brackishwater Aquaculture, #75, Santhome High Road, Raja Annamalai Puram, Chennai, Tamil Nadu 600028, India
| | - Rasmi R Das
- Crustacean Culture Division, ICAR-Central Institute of Brackishwater Aquaculture, #75, Santhome High Road, Raja Annamalai Puram, Chennai, Tamil Nadu 600028, India
| | - R Satish Kumar
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, South Korea
| | - P Rajesh
- Crustacean Culture Division, ICAR-Central Institute of Brackishwater Aquaculture, #75, Santhome High Road, Raja Annamalai Puram, Chennai, Tamil Nadu 600028, India
| | - S K Otta
- Crustacean Culture Division, ICAR-Central Institute of Brackishwater Aquaculture, #75, Santhome High Road, Raja Annamalai Puram, Chennai, Tamil Nadu 600028, India
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Rajesh P, Sellaiyan S, Uedono A, Arun T, Joseyphus RJ. Positron Annihilation Studies on Chemically Synthesized FeCo Alloy. Sci Rep 2018; 8:9764. [PMID: 29950606 PMCID: PMC6021385 DOI: 10.1038/s41598-018-27949-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 06/04/2018] [Indexed: 11/09/2022] Open
Abstract
Equiatomic flower-like FeCo magnetic nanoparticles are synthesized through a modified one-pot polyol technique. The as-prepared samples are annealed at 700 and 800 °C under reducing atmosphere. The saturation magnetization and coercivity of the flower-like FeCo are found to be 198 (1) emu/g and 243 (10) Oe respectively. The magnetic properties of FeCo approach the bulk behavior with annealing. Positron lifetime studies on the chemically synthesized equiatomic FeCo magnetic nanoparticles with flower-like morphology are reported and compared with Fe, Co and FeCo annealed at various temperatures. The FeCo is characterized by different lifetime components corresponding to positron annihilation events in vacancies and various open volume defects due to their unique morphology. The studies suggest defects arising out of cluster vacancies and interpetal gap that reduce on annealing. The average pore size obtained from positron annihilation studies closely matches with the interpetal distance obtained from the electron microscopic analysis for the flower-like FeCo.
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Affiliation(s)
- P Rajesh
- Magnetic Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli, 620015, India
| | - S Sellaiyan
- Division of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan.
| | - A Uedono
- Division of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
| | - T Arun
- Advanced Materials Laboratory, Department of Mechanical Engineering, University of Chile, Santiago, Chile
| | - R Justin Joseyphus
- Magnetic Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli, 620015, India.
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Yaragorla S, Dada R, Rajesh P, Sharma M. Correction to "Highly Regioselective Synthesis of Oxindolyl-Pyrroles and Quinolines via a One-Pot, Sequential Meyer-Schuster Rearrangement, Anti-Michael Addition/C (sp3)-H Functionalization, and Azacyclization". ACS Omega 2018; 3:3804. [PMID: 31458622 PMCID: PMC6641498 DOI: 10.1021/acsomega.8b00578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Indexed: 06/10/2023]
Abstract
[This corrects the article DOI: 10.1021/acsomega.8b00147.].
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Chakkaravarthy SS, Vaidehi V, Rajesh P. Hybrid Analysis Technique to detect Advanced Persistent Threats. International Journal of Intelligent Information Technologies 2018. [DOI: 10.4018/ijiit.2018040104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Advanced persistent threats (APT) are major threats in the field of system and network security. They are extremely stealthy and use advanced evasion techniques like packing and behaviour obfuscation to hide their malicious behaviour and evade the detection methods. Existing behavior-based detection technique fails to detect the APTs due to its high persistence mechanism and sophisticated code nature. Hence, a novel hybrid analysis technique using Behavior based Sandboxing approach is proposed. The proposed technique consists of four phases namely, Static, Dynamic, Memory and System state analysis. Initially, static analysis is performed on the sample which involves packer detection and signature verification. If the sample is found stealthy and remains undetected, then it is executed inside a sandbox environment to analyze its behavior. Further, memory analysis is performed to extract memory artefacts of the current system state. Finally, system state analysis is performed by correlating clean system state and infected system state to determine whether the system is compromised
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Affiliation(s)
| | | | - P Rajesh
- Madras Institute of Technology, Anna University, India
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Yaragorla S, Dada R, Rajesh P, Sharma M. Highly Regioselective Synthesis of Oxindolyl-Pyrroles and Quinolines via a One-Pot, Sequential Meyer-Schuster Rearrangement, Anti-Michael Addition/C (sp3)-H Functionalization, and Azacyclization. ACS Omega 2018; 3:2934-2946. [PMID: 30023853 PMCID: PMC6044873 DOI: 10.1021/acsomega.8b00147] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 02/27/2018] [Indexed: 06/08/2023]
Abstract
A one-pot, sequential Meyer-Schuster (MS) rearrangement of oxindole-derived propargyl alcohols to the corresponding α,β-unsaturated enones and their anti-Michael addition, followed by intramolecular azacyclization is described in a highly regioselective manner using Ca(OTf)2 as the promoter. Further, we described the one-pot MS rearrangement, followed by C(sp3)-H functionalization of 2-methyl azaarenes at α-carbon of these doubly activated alkenes. Control experiments and computational calculations were performed to propose the reaction mechanism.
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Ramesh Chandra VV, M Prasad BC, Rajesh P. Cervical ossified posterior longitudinal ligament: Etiology and surgical perspectives. Neurol India 2018; 66:1400-1403. [DOI: 10.4103/0028-3886.241390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Agostini P, Lugg S, Adams K, Smith T, Kalkat M, Rajesh P, Steyn R, Naidu B, Rushton A, Bishay E. MA 08.09 Postoperative Mobilization and Rehabilitation Requirements for Lung Cancer Patients Undergoing Minimally Invasive Surgery. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kerr A, Oswald N, Webb J, Kadiri S, Bancroft H, Taylor J, Rajesh P, Steyn R, Kalkat M, Bishay E, Naidu B. P1.10-002 Outcome of Pilot RCT in Lung Cancer Surgery Patients Receiving Either Preop Carbohydrate & Postop Nutritional Drinks or Water. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Konda N, Kerr A, Webb J, Rajesh P, Steyn R, Kalkat M, Bishay E, Naidu B. P-150RISK FACTORS FOR QUALITY OF LIFE FOLLOWING LUNG RESECTION SURGERY. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sumathi CS, Rajesh P, Kannan VR. The Biological Potentialsof Indian Traditional Medicine, Curcumin for Treating Human Diseases. Cardiovasc Hematol Agents Med Chem 2017; 15:CHAMC-EPUB-85571. [PMID: 28875835 DOI: 10.2174/1871525715666170830130555] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 08/15/2017] [Accepted: 08/22/2017] [Indexed: 11/22/2022]
Abstract
Curcumin is an active compound extracted from the rhizomes of Curcuma longa L. (Turmeric). It possesses a di phenolic structure and there are three important fractions of curcumin namely curcumin, mono-desmethoxycurcumin and bis-desmethoxycurcumin. Curcumin is having high medicinal value. It is widely in Ayurveda, Siddha and Unani medicine formulations to treat various diseases. It is effective against microbial pathogens like bacteria, virus and fungi. It is highly potent and kills cancerous cells. Curcumin exhibits antioxidant activity and reduces lipoperoxidation. Cardioprotective nature of curcumin is also reported. It can protect the brain from neurodegenerative disorders caused by oxidative stress. It is safe to use in humans and animals. In addition to its medicinal value, it is also having numerous commercial applications like dyeing, cooking purposes and antiseptics etc. The cultivation of turmeric by means of inorganic inputs makes it contaminated with heavy metals is reported. Improving the biological use of curcumin provides healthy humankind and increases the economic status of a country.
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Affiliation(s)
- C S Sumathi
- Department of Microbiology, K.S.Rangasamy College of Arts and Science, Tiruchengode 637215. India
| | - P Rajesh
- Department of Microbiology, K.S.Rangasamy College of Arts and Science, Tiruchengode 637215. India
| | - V. Rajesh Kannan
- Department of Microbiology, Bharathidasan University, Tiruchirappalli 620 024, TamilNadu, India
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Rajesh P, Kandan P, Sathish S, Manikandan A, Gunasekaran S, Gnanasambandan T, Bala Abirami S. Vibrational spectroscopic, UV–Vis, molecular structure and NBO analysis of Rabeprazole. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.01.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chari A, Rajesh P, Prabhu S. Estimation of serum lactate dehydrogenase in smokeless tobacco consumers. Indian J Dent Res 2017; 27:602-608. [PMID: 28169257 DOI: 10.4103/0970-9290.199594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
STATEMENT OF PROBLEM Salivary and serum lactate dehydrogenase (LDH) levels have been correlated with potentially malignant lesions. Salivary LDH levels require special testing and can be expensive. The need for a simple and cost-effective analysis tool is essential to detect the oral malignant lesions to benefit rural populations. AIM The aim of this study is to estimate the serum LDH in patients with oral lesions due to the consumption of smokeless tobacco. MATERIALS AND METHODS Thirty-five patients with lesions were selected for this study while twenty patients served as a control. Levels of serum LDH were assessed. Age- and sex-matched controls (n = 10) with no smokeless consumption habit and with the habit but without lesion (n = 10) also had their blood drawn to assess the basal level of LDH. The results were then analyzed through the two-tailed t-test and Chi-square analysis using the SPSS statistics software. RESULTS The mean LDH value of patients with habit and lesion is 446.8 U/L; the mean LDH value for patients with habit but without the presence of a lesion is 421.2 U/L, and the mean LDH value for patients without a habit or lesion is 269.4 U/L. The patients having the habit of using smokeless tobacco had higher LDH values compared to the other two groups, and it is found to be statistically significant (p < 0.05). CONCLUSION Serum LDH values increased in patients with the habit of chewing smokeless tobacco.
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Affiliation(s)
- Abinaya Chari
- Department of Oral and Maxillofacial Surgery, Chettinad Dental College and Research Institute, Chennai, Tamil Nadu, India
| | - P Rajesh
- Department of Oral and Maxillofacial Surgery, Chettinad Dental College and Research Institute, Chennai, Tamil Nadu, India
| | - S Prabhu
- Department of Public Health Dentistry, Chettinad Dental College and Research Institute, Chennai, Tamil Nadu, India
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Anitha V, Rajesh P, Shanmugam M, Priya BM, Prabhu S, Shivakumar V. Comparative evaluation of natural curcumin and synthetic chlorhexidine in the management of chronic periodontitis as a local drug delivery: a clinical and microbiological study. Indian J Dent Res 2017; 26:53-6. [PMID: 25961616 DOI: 10.4103/0970-9290.156806] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND OF THE STUDY The aim of this study is to evaluate the efficacy of natural curcumin in the management of chronic periodontitis as local drug delivery in comparison to synthetic chlorhexidine, which is the gold standard. MATERIALS AND METHODS Thirty chronic periodontitis patients with an age range of 20-50 years with probing pocket depth (PPD) of 4-6 mm were included. Curcumin and chlorhexidine gel was applied in the contralateral disease sites at baseline and day 15. The clinical parameters like PPD, clinical attachment level (CAL), gingival index (Loe and Silness) and plaque index (Turesky Gillmore modification of Quigley Hein) were recorded and colony forming units (CFU) were assessed microbiologically at baseline, 15 and 30 days. RESULTS There was a significant reduction of the clinical parameters (PPD, CAL) and microbiological parameters CFU at 15 and 30 days for both the groups. Curcumin group showed a greater reduction in the clinical parameters when compared with chlorhexidine group. Both groups had a significant reduction in parameters when compared with baseline. CONCLUSION Although curcumin has equivalent benefit to chlorhexidine, curcumin being an ayurvedic herb is an excellent alternative to chlorhexidine due to minimal side-effects.
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Affiliation(s)
- V Anitha
- Department of Periodontics, Chettinad Dental College and Research Institute, Rajiv Gandhi Salai, Kelambakkam, Kanchipuram, Tamil Nadu, India
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Kadiri S, Robertson A, Kerr A, Bishay E, Kalkat M, Steyn R, Rajesh P, Naidu B. 106: Patient experiences and factors affecting adherence to pulmonary rehabilitation classes before and after lung surgery – the need for a tailored programme. Lung Cancer 2017. [DOI: 10.1016/s0169-5002(17)30156-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Emmanuel FJ, Rajesh P, Raj EVN. Assess the Effectiveness of an Interventional Package on Level of Stress among Mothers of Baby Admitted in NICU. ACTA ACUST UNITED AC 2017. [DOI: 10.5958/0974-9357.2017.00085.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kerr A, Oswald N, Kadiri S, Bancroft H, Webb J, Taylor J, Virgilio E, Bishay E, Kalkat M, Steyn R, Rajesh P, Naidu B. 107: Positive impact on patient's journey through involvement in thoracic surgery clinical trials. Lung Cancer 2017. [DOI: 10.1016/s0169-5002(17)30157-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Silambarasan A, Rajesh P, Bhatt R, Bhaumik I, Maurya KK, Karnal AK, Ramasamy P, Gupta PK. Investigation on the structural, linear/nonlinear optical and electrical characteristics of Cd- and Mn-doped polar lithium sulfate monohydrate crystals. NEW J CHEM 2017. [DOI: 10.1039/c7nj02424j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Doped LSMH single crystals exhibited good transmittance percentage, lower birefringence, enhanced SHG efficiency and good piezoelectric response compared to undoped LSMH crystals.
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Affiliation(s)
- A. Silambarasan
- Research Centre
- Department of Physics
- SSN College of Engineering
- Kalavakkam-603110
- India
| | - P. Rajesh
- Research Centre
- Department of Physics
- SSN College of Engineering
- Kalavakkam-603110
- India
| | - Rajeev Bhatt
- Melt Crystal Growth Laboratory
- Laser Materials Section
- Raja Ramanna Centre for Advanced Technology
- Indore-452013
- India
| | - Indranil Bhaumik
- Melt Crystal Growth Laboratory
- Laser Materials Section
- Raja Ramanna Centre for Advanced Technology
- Indore-452013
- India
| | - K. K. Maurya
- Crystal Growth and X-ray Analysis
- CSIR-National Physical Laboratory
- New Delhi-110012
- India
| | - A. K. Karnal
- Melt Crystal Growth Laboratory
- Laser Materials Section
- Raja Ramanna Centre for Advanced Technology
- Indore-452013
- India
| | - P. Ramasamy
- Research Centre
- Department of Physics
- SSN College of Engineering
- Kalavakkam-603110
- India
| | - P. K. Gupta
- Melt Crystal Growth Laboratory
- Laser Materials Section
- Raja Ramanna Centre for Advanced Technology
- Indore-452013
- India
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Oswald NK, Robertson A, Rajesh P, Steyn R, Bishay E, Kalkat M, Naidu B. P10 Light may be used to differentiate mesothelioma from benign pleural disease at the bedside. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kerr A, Oswald N, Kadiri S, Bancroft H, Virgilio E, Webb J, Bellamy M, Taylor J, Bishay E, Kalkat M, Steyn R, Rajesh P, Naidu B. S65 Developing a multi-disciplinary thoracic surgery research team improves the recruitment into and quality of clinical trials. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
BACKGROUND Out of many complications that were observed in type 2 diabetes, cognitive impairment is the most neglected. AIM AND OBJECTIVES The aim of the present study is to assess the cognitive decline in type 2 diabetes and to observe the role of yogasanas and pranayama in ameliorating the cognitive decline. MATERIALS AND METHODS Sixty eight type 2 diabetic subjects were recruited in the study, 34 of them did specific yogasanas and pranayama (test group) for six months and the remaining age and sex matched 34 subjects were recruited as (control group) who were not on any specific exercise regimen. Glycaemic index was estimated by measuring the glycosylated haemoglobin (HbA1c) concentration with Bio-Rad apparatus and cognition was assessed by using Addenbrook's Cognitive Examination-Revised (ACE-R), which is a neuropsychological battery. STATISTICAL ANALYSIS Data was analysed with unpaired student t test. P value<0.05 is considered as statistically significant. Validity was assessed by receiver operating characteristics. RESULTS Analysis of data indicated more cognitive scores in the test group when compared with the control group. In test group six months practice of yogasanas and pranayama has also significantly brought down the high glycaemic values which were observed in the control group. CONCLUSION These findings allow the study to conclude that regular practice of yogasanas and pranayama has a beneficial effect on cognitive performance in type 2 diabetic subjects by stabilizing blood glucose.
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Affiliation(s)
- Santhakumari Rajani
- Department of Physiology, MediCiti Institute of Medical Sciences, Ghanpur village, Medchal Mandal, Ranga Reddy District, Telangana State
| | - Rajagopalan Archana
- Department of Physiology, Saveetha Medical College, Thandalam, Chennai, Tamilnadu
| | | | - P Rajesh
- Department of Physiology, MediCiti Institute of Medical Sciences, Ghanpur village, Medchal Mandal, Ranga Reddy District, Telangana State
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Affiliation(s)
- V K Ingle
- Department of Medicine, All India Institute of Medical Sciences Bhopal, Bhopal, Madhya Pradesh, India
| | - P K Maharana
- Department of Ophthalmology, All India Institute of Medical Sciences Bhopal, Bhopal, Madhya Pradesh, India
| | - P Rajesh
- Department of Ophthalmology, All India Institute of Medical Sciences Bhopal, Bhopal, Madhya Pradesh, India
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Anitha V, Nair S, Shivakumar V, Shanmugam M, Priya BM, Rajesh P. Estimation of high sensitivity C-reactive protein in patients with periodontal disease and without coronary artery disease. Indian J Dent Res 2016; 26:500-3. [PMID: 26672420 DOI: 10.4103/0970-9290.172048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND HsCRP (Highly sensitive C reactive protein) is a global indicator for future vascular events in adults detected in blood stream 48 hours before the cardiovascular event. Periodontal disease may increase blood levels of inflammatory markers like IL-6, CRP and HsCRP. Hence the aim of the present study is to evaluate the presence of elevated HsCRP levels in chronic periodontitis patients. MATERIAL AND METHODS 100 patients who reported for cardiac master health check up were enrolled in the study. The periodontal status was assessed using periodontal probing pocket depth and clinical attachment level. The decayed, missing and filled tooth was recorded using DMFT index. The venous samples of these patients were obtained for recording HsCRP levels. RESULTS Pearson correlation was used to analyze the relationship between HsCRP level and probing pocket depth, clinical attachment loss and DMFT. The correlation value was 0.051, 0.025 and 0.101 respectively, the correlation is statistically significant for probing pocket depth and clinical attachment level (P>0.05). Chi-square test was performed to study the association between gender and HsCRP, Diabetes Mellitus and HsCRP and Hypertension and HsCRP; the results showed that there is no significant association between any of the above mentioned factors and HsCRP level in blood. CONCLUSIONS We found an increased level of HsCRP in patients with chronic periodontitis which revealed the susceptibility of these patients to cardiac diseases like myocardial infarction and stroke. Hence present day focus in the line of management of cardiac patient has changed from the periodontal perspective.
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Affiliation(s)
- V Anitha
- Department of Periodontics, Chettinad Dental College and Research Institute, Kanchipuram, Tamil Nadu, India
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Elshafie G, Acosta J, Aliverti A, Bradley A, Kumar P, Rajesh P, Naidu B. Chest wall mechanics before and after diaphragm plication. J Cardiothorac Surg 2016; 11:25. [PMID: 26832454 PMCID: PMC4736549 DOI: 10.1186/s13019-016-0419-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 01/21/2016] [Indexed: 11/29/2022] Open
Abstract
Background Following diaphragmatic plication for unilateral paralysis, the effect on global chest wall function are unknown. Our hypothesis was that chest wall function would improve in both sides of the chest after plication of the paralysed side. Case Presentation Using Optoelectronic Plethysmography, total and regional chest wall volumes were measured in one patient before and after left diaphragmatic plication. Volumes were recorded at quiet breathing. Respiratory capacity improved during quiet breathing when measured before and 6 months after surgery. These improvements occur at the abdominal-rib cage level in both operated and contralateral. Prior to surgery the abdominal rib cage motion was out of phase to the upper rib cage and abdominal compartment in both sides of the chest. Synchrony of all three compartments was restored after plication. Conclusion This physiological study is the first published data in humans to show improvement in chest wall motion both in operated and contralateral side following diaphragmatic plication for unilateral paralysis.
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Affiliation(s)
- Ghazi Elshafie
- Heart of England Foundation Trust, Birmingham, B9 5SS, UK.,Birmingham Medical School, University of Birmingham, Birmingham, UK
| | - Johanna Acosta
- International Digital Laboratory, University of Warwick, Coventry, CV4 7AL, UK
| | - Andrea Aliverti
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy
| | - Amy Bradley
- Heart of England Foundation Trust, Birmingham, B9 5SS, UK
| | - Prem Kumar
- Birmingham Medical School, University of Birmingham, Birmingham, UK
| | - Pala Rajesh
- Heart of England Foundation Trust, Birmingham, B9 5SS, UK
| | - Babu Naidu
- Heart of England Foundation Trust, Birmingham, B9 5SS, UK. .,Birmingham Medical School, University of Birmingham, Birmingham, UK.
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Rajesh P, Gunasekaran S, Gnanasambandan T, Seshadri S. Experimental and theoretical study of ornidazole. Spectrochim Acta A Mol Biomol Spectrosc 2016; 153:496-504. [PMID: 26408856 DOI: 10.1016/j.saa.2015.08.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 08/08/2015] [Accepted: 08/14/2015] [Indexed: 06/05/2023]
Abstract
The Fourier transform infrared (FT-IR) and the Fourier transform Raman (FT-Raman) spectra of the title molecule in solid phase were recorded in the region 4000-400 cm(-1) and 4000-100 cm(-1) respectively. The geometrical parameters and energies were investigated with the help of Density Functional Theory (DFT) employing B3LYP method and 6-31G (d, p) basis set. The analysis was supported by electrostatic potential maps and calculation of HOMO-LUMO. UV, FT-IR and FT-Raman spectra of ornidazole were calculated and compared with experimental results. Thermodynamic properties like entropy, heat capacity, have been calculated for the molecule. The predicted first hyperpolarizability also shows that the molecule might have a reasonably good non-linear optical (NLO) behavior. The intramolecular contacts have been interpreted using natural bond orbital (NBO) and natural localized molecular orbital (NLMO) analysis.
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Affiliation(s)
- P Rajesh
- Department of Physics, Pachaiyappa's College, Chennai 600030, India; Department of Physics, Meenakshi Academy of Higher Education & Research, Faculty of Humanities and Science, Meenakshi University, Chennai-600078, India.
| | - S Gunasekaran
- Research & Development, St. Peter's University, Avadi, Chennai 600 054, India
| | - T Gnanasambandan
- Department of Physics, Pallavan College of Engineering, Kanchipuram 63150, India
| | - S Seshadri
- Department of Physics, L.N. Govt. Arts College, Ponneri 601204, India
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Elshafie G, Steyn R, Bishay E, Kalkat M, Rajesh P, Naidu B. 171 Early chest mechanics changes post lung cancer resection: the effect of post operative pulmonary complications on chest wall mechanics. Lung Cancer 2016. [DOI: 10.1016/s0169-5002(16)30188-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Elshafie G, Kalkat M, Steyn R, Bishay E, Rajesh P, Naidu B. 91 The effect of benign and malignant pleural disease on chest wall mechanics. Lung Cancer 2016. [DOI: 10.1016/s0169-5002(16)30108-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Silambarasan A, Rao EN, Rao SV, Rajesh P, Ramasamy P. Bulk growth, crystalline perfection and optical characteristics of inversely soluble lithium sulfate monohydrate single crystals grown by the conventional solvent evaporation and modified Sankaranarayanan–Ramasamy method. CrystEngComm 2016. [DOI: 10.1039/c6ce00012f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Burge GA, Okiror L, Trotter S, Langman G, Payyappilly S, Naidoo P, Reynolds J, Djearman M, Hussain S, Hoey E, Steyn R, Rajesh P, Bishay E, Naidu B, Kalkat M, Petkova D, Ghani S, Burge PS. S41 Interstitial Lung Disease MDT presentations post VATS lung biopsy changes the original histological diagnosis in 30%. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Tikka T, Steyn R, Bishay E, Kalkat M, Naidu B, Rajesh P. P-221A 20-YEAR REVIEW OF PECTUS SURGERY: AN ANALYSIS OF FACTORS PREDICTIVE OF RECURRENCE AND OUTCOMES. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Elshafie G, Aliverti A, Rajesh P, Steyn R, Bishay E, Kalkat M, Naidu B. F-031THE IMPROVEMENT OF EXERCISE CAPACITY AFTER SURGICAL CORRECTION OF PECTUS CARINATUM IS ASSOCIATED WITH REVERSAL OF DYNAMIC HYPERINFLATION. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Purusothaman R, Rajesh P, Ramasamy P. Growth and characterization of organic NLO material: clobetasol propionate. Spectrochim Acta A Mol Biomol Spectrosc 2015; 145:235-238. [PMID: 25791879 DOI: 10.1016/j.saa.2015.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 02/13/2015] [Accepted: 03/01/2015] [Indexed: 06/04/2023]
Abstract
Single crystals of clobetasol propionate (CP) have been grown by slow evaporation solution technique using mixed solvent of methanol-acetone. The grown crystals were subjected to single crystal X-ray diffraction analysis to confirm their lattice parameter and space group. The powder X-ray diffraction pattern of the grown CP has been indexed. Thermal analysis was performed to study the thermal stability of the grown crystals. Photoluminescence spectrum shows broad emission peak observed at 421 nm. Nonlinear optical studies were carried out for the grown crystal and second harmonic generation (SHG) efficiency was found in the crystal.
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Affiliation(s)
- R Purusothaman
- Department of Physics, SSN college of Engineering, Kalavakkam 603 110, India
| | - P Rajesh
- Department of Physics, SSN college of Engineering, Kalavakkam 603 110, India.
| | - P Ramasamy
- Department of Physics, SSN college of Engineering, Kalavakkam 603 110, India
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Okiror L, Peleki A, Moffat D, Bille A, Bishay E, Rajesh P, Steyn R, Naidu B, Grimer R, Kalkat M. Survival following Pulmonary Metastasectomy for Sarcoma. Thorac Cardiovasc Surg 2015; 64:146-9. [DOI: 10.1055/s-0035-1546430] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Lawrence Okiror
- Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom
| | - Aikaterini Peleki
- Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom
| | - Daniel Moffat
- Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom
| | - Andrea Bille
- Department of Thoracic Surgery, Istituto Nazionale dei Tumori, Milan, Italy
| | - Ehab Bishay
- Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom
| | - Pala Rajesh
- Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom
| | - Richard Steyn
- Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom
| | - Babu Naidu
- Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom
| | - Robert Grimer
- Department of Orthopaedic Oncology, Royal Orthopaedic Hospital, Birmingham, United Kingdom
| | - Maninder Kalkat
- Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom
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Rajesh P, Gunasekaran S, Gnanasambandan T, Seshadri S. Molecular structure and vibrational analysis of Trifluoperazine by FT-IR, FT-Raman and UV-Vis spectroscopies combined with DFT calculations. Spectrochim Acta A Mol Biomol Spectrosc 2015; 137:1184-93. [PMID: 25305610 DOI: 10.1016/j.saa.2014.08.100] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/11/2014] [Accepted: 08/24/2014] [Indexed: 05/07/2023]
Abstract
The complete vibrational assignment and analysis of the fundamental vibrational modes of Trifluoperazine (TFZ) was carried out using the experimental FT-IR, FT-Raman and UV-Vis data and quantum chemical studies. The observed vibrational data were compared with the wavenumbers derived theoretically for the optimized geometry of the compound from the DFT-B3LYP gradient calculations employing 6-31G (d,p) basis set. Thermodynamic properties like entropy, heat capacity and enthalpy have been calculated for the molecule. The HOMO-LUMO energy gap has been calculated. The intramolecular contacts have been interpreted using natural bond orbital (NBO) and natural localized molecular orbital (NLMO) analysis. Important non-linear properties such as first hyperpolarizability of TFZ have been computed using B3LYP quantum chemical calculation.
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Affiliation(s)
- P Rajesh
- Department of Physics, Pachaiyappa's College, Chennai 600030, India.
| | - S Gunasekaran
- Research & Development, St. Peter's Univerisity, Avadi, Chennai 600054, India
| | - T Gnanasambandan
- Department of Physics, Pallavan College of Engineering, Kanchipuram 631502, India
| | - S Seshadri
- Department of Physics, L.N. Govt. Arts College, Ponneri 601204, India
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Rajesh P, Gunasekaran S, Gnanasambandan T, Seshadri S. Experimental, quantum chemical and NBO/NLMO investigations of pantoprazole. Spectrochim Acta A Mol Biomol Spectrosc 2015; 136 Pt B:247-255. [PMID: 25315871 DOI: 10.1016/j.saa.2014.09.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Revised: 08/11/2014] [Accepted: 09/11/2014] [Indexed: 06/04/2023]
Abstract
The complete vibrational assignment and analysis of the fundamental modes of pantoprazole (PPZ) was carried out using the experimental FT-IR, FT-Raman and UV-Vis data and quantum chemical studies. The observed vibrational data were compared with the wavenumbers derived theoretically for the optimized geometry of the compound from the DFT-B3LYP gradient calculations employing 6-31G (d, p) basis set. Thermodynamic properties like entropy, heat capacity and enthalpy have been calculated for the molecule. HOMO-LUMO energy gap has been calculated. The intramolecular contacts have been interpreted using natural bond orbital (NBO) and natural localized molecular orbital (NLMO) analysis. Important non-linear properties such as electric dipole moment and first hyperpolarizability of PPZ have been computed using B3LYP quantum chemical calculation. Finally, the Mulliken population analysis on atomic charges of the title compound has been calculated.
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Affiliation(s)
- P Rajesh
- Department of Physics, Pachaiyappa's College, Chennai 600 030, India.
| | - S Gunasekaran
- Research & Development, St. Peter's University, Avadi, Chennai 600 054, India
| | - T Gnanasambandan
- Department of Physics, Pallavan College of Engineering, Kanchipuram 631502, India
| | - S Seshadri
- Department of Physics, L.N. Govt. Arts College, Ponneri 601204, India
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Silambarasan A, Rajesh P, Ramasamy P. Study on structural, morphological, optical and thermal properties of guanidine carbonate doped nickel sulfate hexahydrate crystal. Spectrochim Acta A Mol Biomol Spectrosc 2015; 134:345-349. [PMID: 25022507 DOI: 10.1016/j.saa.2014.06.096] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 05/31/2014] [Accepted: 06/16/2014] [Indexed: 06/03/2023]
Abstract
The single crystal of guanidine carbonate doped nickel sulfate hexahydrate was grown from solution for ultraviolet filters. The single crystal XRD confirms that the grown single crystal belongs to the tetragonal system with the space group of P4₁2₁2. The crystallinity of the grown crystal was estimated by powder X-ray diffraction studies. The optical transmission and thermal stability of as-grown guanidine carbonate doped nickel sulfate single crystals have been studied. The optical transmission spectrum demonstrates the characteristics of ultraviolet filters. The TG/DTA studies confirm the thermal properties of grown crystals. Thermo-gravimetric analysis showed that the dehydration temperature of the guanidine carbonate doped nickel sulfate crystal is about 100 °C, which is much higher than that of pure nickel sulfate hexahydrate (NSH) crystals which is 72 °C. The growth behaviors and dislocation density were detected under the high resolution XRD and etching studies respectively.
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Affiliation(s)
- A Silambarasan
- Center for Crystal Growth, SSN College of Engineering, Kalavakkam 603 110, India
| | - P Rajesh
- Center for Crystal Growth, SSN College of Engineering, Kalavakkam 603 110, India.
| | - P Ramasamy
- Center for Crystal Growth, SSN College of Engineering, Kalavakkam 603 110, India
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Elshafie G, De Boer W, Steyn R, Bishay E, Kalkat M, Rajesh P, Wilson R, Naidu B. 170: Novel thoraco-abdominal analysis technology can measure early respiratory changes following lung cancer resection. Lung Cancer 2015. [DOI: 10.1016/s0169-5002(15)50164-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rajesh P, Balasubramanian K. Gestational exposure to di(2-ethylhexyl) phthalate (DEHP) impairs pancreatic β-cell function in F1 rat offspring. Toxicol Lett 2015; 232:46-57. [DOI: 10.1016/j.toxlet.2014.09.025] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/10/2014] [Accepted: 09/28/2014] [Indexed: 12/18/2022]
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