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Journal of Coastal Life Medicine 2014年第12期 980-985页

作者： Manickam Pavunraj Kathirvelu Baskar Sundaram Janarthanan munusamy arumugam PG&Research Department of Zoology Vivekananda CollegeThiruvedakam WestMadurai-625217India Bioscience Research Foundation PorurChennai-600116Tamil NaduIndia Department of Zoology University of MadrasChennai-600025Tamil NaduIndia

Objective:To evaluate the antibacterial and antifeedant activities of dichloromethane,acetone and aqueous extracts of Spilanthes acmella(L.)(***)Murr against selected bacterial strains and larvae of Leucinodes orbonalis ***:Solvent extracts were tested against pathogenic microbes using disc diffusion method and fruit disc no-choice method for antifeedant ***:The study revealed that dichloromethane extract of *** leaf showed broad spectrum antibacterial activity against all the tested *** zone of inhibition was observed in dichloromethane leaf extract of *** against Escherichia coli[(18.9±0.34)mm]followed by Staphylococcus aureus[(18.6±1.31)mm],Proteus vulgaris[(17.2±0.68)mm],Bacillus subtilis[(17.0±0.76)mm]and Klebsiella pneumonia[(16.4±1.55)mm]at 5 mg/disc *** aqueous extract was moderately inhibited the tested bacteria at all the *** extract showed good antifeedant activity against Leucinodes orbonalis(68.88%)when compared to acetone(60.80%)and aqueous(45.48%)extracts at 5%*** preliminary phytochemical analysis showed the presence of alkaloids,terpenoids,phytosterols,saponins,steroid,tannins and phenolic ***:The study suggests that the dichloromethane leaf extract of *** could be used to develop a novel herbal formulation to control pathogenic bacteria and agricultural pests.

关键词： Antibacterrial Antifeedant Spilanthes acmella Leucinodes orbonalis

Phytopesticidal effects of Spilanthes acmella(L.)*** on three economically important lepidopteran insect pests

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Journal of Coastal Life Medicine 2014年第7期 549-554页

作者： Manickam Pavunraj Kathirvelu Baskar Sundaram Janarthanan munusamy arumugam Department of Zoology University of MadrasChennai-600025Tamil NaduIndia Entomology Research Institute Loyola CollegeChennai-600034Tamil NaduIndia

Objective:To evaluate the antifeedant and larvicidal activities of dichloromethane(DCM),acetone,dimethylsulfoxide(DMSO)and aqueous extracts of Spilanthes acmella(***)leaves against Earias vitella,Helicoverpa armigera and Spodoptera ***:DCM,acetone,DMSO and aqueous extracts were studied using fruit and leaf discs no-choice method at 0.625%,1.25%,2.5%and 5%***:All the extracts showed antifeedant and larvicidal activities against all the tested ***,maximum antifeedant activity was detected in DCM extract of *** against all tested pest,followed by acetone,DMSO and aqueous extracts at 5%*** leaves extract of *** also showed larvicidal activity;maximum larval mortality was observed in DCM extract against Helicoverpa armigera(48.88%),Spodoptera litura(44.88%)and Earias vitella(75.11%)followed by acetone,DMSO and aqueous extracts at 5%***:DCM extract of *** could be further purified to develop a formulation for eco-friendly pest control agent.

关键词： Spilanthes acmella Antifeedant Larvicidal Lepidopteran

2,5-Dimercapto-1,3,4-Thiadiazole(DMCT)-Based Polymers for Rechargeable Metal-Sulfur Batteries

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Energy & Environmental Materials 2023年第6期6卷 283-290页

作者： Amruth Bhargav arumugam Manthiram Materials Science and Engineering Program&Texas Materials Institute The University of Texas at AustinAustin Texas 78712USA

Organosulfur materials are a sustainable alternative to the present-day layered oxide cathodes in lithium-based *** such organosulfur material that was intensely explored from the 1990s to early 2010s is 2,5-dimercapto-1,3,4-thiadiazole(DMCT).However,research interest declined as the electrode reactions with DMCT were assumed to be too sluggish to be *** with the advances in metal-sulfur batteries,we revisit DMCT-based materials in the form of poly[tetrathio-2,5-(1,3,4-thiadiazole)],referred to as *** an appropriate choice of electrode design and electrolyte,pDMCT-S cathode paired with a Li-metal anode shows a capacity of 715 mA h g^(-1)and a Coulombic efficiency of 97.7%at a C/10 rate,thus quelling the concerns of sluggish ***,pDMCT-S shows significantly improved long-term cyclability compared to a sulfur *** into the origin of the stability reveals that the discharge product Li-DMCT in its mesomeric form can strongly bind to polysulfides,preventing their dissolution into the electrolyte and *** unique mechanism solves a critical problem faced by sulfur ***,this mechanism results in a stable performance of pDMCT-S with Na-metal cells as *** study opens the potential for exploring other organic materials that have inherent polysulfide sequestering capabilities,enabling long-life metal-sulfur batteries.

关键词： 2,5-dimercapto-1,3,4-thiadiazole electrochemistry metal-sulfur batteries organopolysulfide organosulfur batteries

Secured Vehicle Life Cycle Tracking Using Blockchain and Smart Contract

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Computer Systems Science & Engineering 2022年第4期41卷 1-18页

作者： Srinivasan Ananthanarayanan Bragadeesh arumugam Umamakeswari School of Computing SASTRA Deemed UniversityThanjavur613401India

Life Cycle Tracking(LCT)involves continuous monitoring and analy-sis of various activities associated with a *** crucial factor in the LCT is to ensure the validity of gathered data as numerous supply chain phases are involved and the data is assessed by multiple *** and swindling activities can be prevented if the history of the vehicles is made available to the interested *** provides a way of enforcing trustworthiness to the supply chain participants and the data associated with the various actions *** learning techniques when combined decentralized nature of blockchains can be used to develop a robust Vehicle LCT *** the proposed work,Harmonic Optimized Gradient Descent andŁukasiewicz Fuzzy(HOGD-LF)Vehicle Life Cycle Tracking in Cloud Environment is proposed and it involves three ***,the Progressive Harmonic Optimized User Registra-tion and Authentication model is designed for computationally efﬁcient registra-tion and ***,for the authentic user,the Gradient Descent Blockchain-based SVM Data Encryption model is designed with minimum CPU ***,Łukasiewicz Fuzzy Smart Contract Veriﬁcation is per-formed with encrypted data to ensure accurate and precise fraudulent activity *** experimental analysis shows that the proposed method achieves signiﬁcant performance in terms of life cycle’s prediction time,overhead,and accuracy for a different number of users.

关键词： Vehicle life cycle tracking progressive harmonic optimization blockchain gradient descent Łukasiewicz fuzzy smart contract

Dynamic Ensemble Multivariate Time Series Forecasting Model for PM2.5

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Computer Systems Science & Engineering 2023年第2期44卷 979-989页

作者： Narendran Sobanapuram Muruganandam Umamakeswari arumugam School of Computing SASTRA UniversityThanjavur613401India

In forecasting real time environmental factors,large data is needed to analyse the pattern behind the data *** pollution is a major threat towards developing countries and it is proliferating every *** methods in time ser-ies prediction and deep learning models to estimate the severity of air *** independent variable contributing towards pollution is necessary to analyse the trend behind the air pollution in that particular *** approach selects multivariate time series and coalesce a real time updatable autoregressive model to forecast Particulate matter(PM)*** perform experimental analysis the data from the Central Pollution Control Board(CPCB)is *** is car-ried out for Chennai with seven locations and estimated PM’s using the weighted ensemble *** method for air pollution prediction unveiled effective and moored performance in long term *** budge with high weighted k-models are used simultaneously and devising an ensemble helps to achieve stable *** time of ensemble decreases with paral-lel processing in each sub *** ensemble model shows high perfor-mance in long term prediction when compared to the traditional time series models like Vector Auto-Regression(VAR),Autoregressive Integrated with Mov-ing Average(ARIMA),Autoregressive Moving Average with Extended terms(ARMEX).Evaluation metrics like Root Mean Square Error(RMSE),Mean Absolute Error(MAE)and the time to achieve the time series are compared.

关键词： Dynamic transfer ensemble model air pollution time series analysis multivariate analysis

Therapeutic role of yoga in hypertension

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World Journal of Methodology 2024年第1期14卷 45-57页

作者： Anjali Mangesh Joshi Arkiath Veettil Raveendran Muruganathan arumugam Department of Psycho-Oncology HCG NCHRI Cancer CenterNagpur 440026MaharashtraIndia Department of Internal Medicine Former Assistant Professor of MedicineGovt.Medical CollegeKozhikode 673010KeralaIndia Department of Internal Medicine Past president API Past Governor American College of Physicians Past President Hypertension Society of India Past Dean Indian College of PhysiciansTirupur 641602TamilnaduIndia

Systemic hypertension is an established risk factor for coronary artery disease and cerebrovascular accident and control of blood pressure reduces the risk of a major cardiovascular *** non-pharmacological and pharmacological treatment options are available to treat ***,recently received more attention as a treatment modality for various lifestyle disorders,even though practiced in India since ancient *** this review,we are analyzing the role of yoga in the treatment of systemic hypertension.

关键词： Yoga Hypertension Blood pressure Asana Pranayama Meditation

Disseminated tuberculosis presenting as meningitis and spondylodiscitis in an immunocompetent adult

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Asian Pacific Journal of Tropical Medicine 2023年第6期16卷 284-286页

作者： Jeyapraniya arumugam Shamila De Silva University Medical Unit Colombo North Teaching HospitalRagamaSri Lanka Faculty of Medicine University of KelaniyaSri Lanka

Rationale:Disseminated tuberculosis involves the central nervous system in up to a third of ***,meningitis and spondylodiscitis due to miliary tuberculosis rarely occur together,particularly in the immuno-competent *** concerns:A 37-year-old immunocompetent male presented with altered level of consciousness for one week and lower back pain with evening pyrexia for one *** revealed spastic paraplegia and left ***:Disseminated tuberculosis presenting with meningitis and ***:Category I anti-tuberculous therapy with a tapering regimen of intravenous dexamethasone was ***:There was clinical improvement after nine months of ***:Tuberculosis may present with atypical clinical *** enhanced computed tomography scan or magnetic resonance imaging combined with histopathological features,a high index of suspicion and clinical improvement with anti-tuberculous treatment can confirm the diagnosis in the absence of microbiological evidence,especially in extrapulmonary tuberculosis.

关键词： Disseminated tuberculosis Immunocompetent Spondylodiscitis Meningitis Miliary tuberculosis

Seasonal Variability of Biofouling Community Structure in the Gulf of Mannar,Southeast Coast of India:A Multivariate Approach

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Journal of Ocean University of China 2023年第3期22卷 766-776页

作者： MARIMUTHU Nithyanandam WILSON James Jerald KUMARAGURU arumugam Kuppuswamy Department of Marine and Coastal Studies School of EnergyEnvironment and Natural ResourcesMadurai Kamaraj UniversityMadurai 625021India Zoological Survey of India Fire-Proof Spirit BuildingIndian Museum ComplexKolkata 700016West BengalIndia Noorul Islam Center for Higher Education KumaracoilThuckalayKanyakumari District 629180Tamil NaduIndia

In this research,an Underwater Biofouling Panel(UWBFP)system was erected for the qualitative and quantitative estimation of macro fouling organisms in the Gulf of ***-four biofoulers were identified from four types of selected test *** these biofoulers,Amphibalanus amphitrite(Darwin,1854)was the dominant *** concrete panel encouraged the highest barnacle density compared to the other *** series of test panels were used to assess the seasonal density of biofouling *** overall variation in barnacle count in the seaward and shoreward sides of all these three series were *** were found to be significantly different from each *** greater variations in the barnacle density observed in this study in A-series of test panels could be due to the lack of or absence of other foulers to compete within the *** Shannon-Wiener species diversity index showed the highest diversity in wood substratum among the three series with greater accumulation of different types of fouling *** analyses were also performed to understand the seasonal variation as well as the settlement pattern on the different directions of test panels based on validated *** showed a strong variability(PC1 between 70.8%and 98.6%variance)between the directions of the panels in connection with barnacle *** shade plot and CAP analysis segregated the short-term A-series test panels from the long-term(B-and C-series)test ***,the output was helpful in understanding the recruitment status of various faunal resources involved in the biofouling processes.

关键词： biofouling barnacle hard fouler multivariate analysis fouling biomass Gulf of Mannar

Statistical optimization and formulation of microalga cultivation medium for improved omega 3 fatty acid production

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Systems Microbiology and Biomanufacturing 2022年第2期2卷 369-379页

作者： Aswathy Udayan Nidhin Sreekumar Muthu arumugam Microbial Processes and Technology Division National Institute for Interdisciplinary Science and Technology(NIIST)CSIRIndustrial EstatePappanamcodeThiruvananthapuramKerala 695019India Academy of Scientifc and Innovative Research(AcSIR) Ghaziabad 201002India Accubits Invent Accubits Technologies Inc.ThiruvananthapuramKerala 695004India

Microalgae are considered a rich source of high-value metabolites with an array of nutraceutical and pharmaceutical *** strategies have been developed for cultivating microalgae at large-scale photobioreactors but high cost and low productivity are the major *** the composition of media for the cultivation of microalgae to induce biomass production and high-value metabolite accumulation has been considered as an important factor for sustainable product *** this study,the efect of plant growth regulators together with basal microalgal cultivation medium on biomass,total lipid,and EPA production was studied using the Plackett–Burman model and Response surface *** traditional one-factor-at-a-time optimization approach is laborious,time-consuming,and requires more experiments which makes the process and analysis more *** Designed PB model was found to be signifcant for biomass(396 mg/L),lipid(254 mg/L),and EPA(5.6%)production with a P value<*** major objective of this study is to formulate a medium for EPA production without compromising the growth ***,we had formulated a new media using RSM to achieve the goal and the signifcant variables selected were NaNO_(3),NaH_(2)PO_(4),and IAA and was found to be signifcant with 16.72%EPA production with a biomass production of 893 mg/L with a P value<*** formulated medium can be used in large-scale cultivation systems which can enhance biomass production as well as the omega 3 fatty acid production in marine microalgae Nannochloropsis oceanica.

关键词： Microalgae Omega 3 fatty acids EPA Plackett–Burman Response surface methodology Plant growth regulators

Mesoporous titanium-aluminosilicate as an efficient catalyst for selective oxidation of cyclohexene at mild reaction conditions

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Chinese Journal of Chemical Engineering 2023年第3期55卷 257-265页

作者： Jitendra Diwakar Selvamani arumugam Bhavna Saini Anup Prakash Tathod Nagabhatla Viswanadham Academy of Scientific and Innovative Research(AcSIR) at CSIR-Indian Institute of PetroleumDehradun 248005India Light Stock Processing Division Council of Scientific&Industrial Research-Indian Institute of PetroleumCouncil of Scientific and Industrial ResearchDehradun 248005India

Mesoporous titanium containing alumino-silicate materials with various titanium/silicon(Ti/Si) ratio(AlSi-Ti(n);n = Ti/Si mole ratio) have been successfully synthesized by a novel single-step sodium(Na)-free method, for the first time. The obtained characterization results of the prepared materials reveal that in-situ addition of Ti into AlSi shows ordered mesoporous structure along with uniformly dispersed Ti species in +4 and +3 oxidation states suitable for selective oxidation of allylic C—H bond. The prepared mesoporouse Ti-AlSi(n) samples exhibited excellent activity in the oxidation of cyclohexene with 100%conversion and 100% selectivity to ketone-alcohol(KA) oil(cyclohex-2-en-1-ol and 2-cyclohexen-1-one) at low temperature and reaction time(35℃ and 30 min reaction time). This study suggests that AlSi-Ti(0.05) material can be a promising catalyst for the selective oxidation of cyclohexene under mild reaction conditions.

关键词： Cyclohexene Allylic oxidation KA oil Mesoporous AlSi Mild conditions