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A Novel Segment White Matter Hyperintensities Approach for Detecting Alzheimer

Computer Systems Science & Engineering 2023年第3期44卷 2715-2726页

作者： Antonitta Eileen Pious U.K.sridevi Department of Science and Humanities Sri Krishna College of Engineering and TechnologyCoimbatore641008India Department of Applied Mathematics and Computational Sciences PSG College of TechnologyCoimbatore641008India

Segmentation has been an effective step that needs to be done before the classification or detection of an anomaly like Alzheimer’s on a brain *** helps detect pixels of the same intensity or volume and group them together as one class or region,where in that particular region of interest(ROI)can be concentrated on,rather than focusing on the entire *** this paper White Matter Hyperintensities(WMH)is taken as a strong biomarker that supports and determines the presence of Alzheimer’*** thefirst step a proper segmentation of the lesions has to be carried *** pointed out in various other research papers,when the WMH area is very small or in places like the Septum Pellucidum the detection of the lesion is hard *** overcome such problem areas a very optimized and accurate Threshold would be required to have a precise segmentation to detect the area of *** would help in proper detection and classification of the *** this paper an elaborate comparison of various thresholding techniques has been done for segmentation.A novel idea for detection of Alzheimer’s has been presented in this paper,which encompasses the effectiveness of an optimized and adaptive *** Unet architecture has been taken as the baseline model with an adaptive kernel model embedded within the *** state-of-the-art technologies have been used with the dataset and a comparative study has been presented with the current architecture used in the *** lesion segmentation in narrow areas has accurately been detected compared to the other models and the number of false positives has been reduced to a great extent.

关键词： Alzheimer’s adaptive threshold deep learning segmentation

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A Unified Instability Region for the Extended Taylor-Goldstein Problem of Hydrodynamic Stability

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Advances in Applied Mathematics and Mechanics 2017年第6期9卷 1404-1419页

作者： S.sridevi Huashu Dou V.Ganesh Research and Development Centre Bharathiyar UniversityCoimbatore-641046India Faculty of Mechanical Engineering and Automation Zhejiang Sci-Tech UniversityHangzhouZhejiang 310018China Department of Mathematics Rajiv Gandhi College of Engineering and TechnologyKirumampakkamPuducherry-607402India

We consider inviscid,incompressible shear flows with variable density and variable cross *** this problem,we derived a new estimate for the growth rate of an unstable mode and a parabolic instability region which inte... 详细信息

关键词： Hydrodynamic stability shear flows variable bottom sea straits

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Deep learning network with Euclidean similarity factor for Brain MR Tumor segmentation and volume estimation

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International Journal of Modeling, Simulation, and Scientific Computing 2019年第6期10卷 57-84页

作者： G.Anand Kumar P.V.sridevi Department of Electronics and Communication Engineering Gayatri Vidya Parishad College of Engineering(Autonomous)Visakhapatnam Andhra PradeshIndia Department of Electronics and Communication Engineering Andhra University College of Engineering(Autonomous)Visakhapatnam Andhra PradeshIndia

The major goal of this paper is to isolate tumor region from nontumor regions and the estimation of tumor *** segmentation is not an easy task due to the varying size,shape and location of the *** segmentation,volume estimation is necessary in order to accurately estimate the tumor *** exactly estimating the volume of abnormal tissue,physicians can do excellent prognosis,clinical planning and dosage *** paper describes a new Euclidean Similarity factor(ESF)based active contour model with deep learning for segmenting the tumor region into complete,core and enhanced tumor ***,the ESF considers the spatial distances and intensity differences of the region automatically to detect the tumor *** preserves the image details but removes the noisy ***,the 3D Convolutional Neural Network(3D CNN)segments the tumor by automatically extracting spatiotemporal ***,the extended shoelace method estimates the volume of the tumor accurately for n-sided *** simulation result achieves a high accuracy of 92%and Jaccard index of 0.912 and computes the tumor volume with effective performance than existing approaches.

关键词： Active contour brain tumor segmentation convolutional neural network Euclidean similarity factor magnetic resonance imaging

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Ameliorative effect of Punica granatum on sperm parameters in rats exposed to mobile radioelectromagnetic radiation

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Asian pacific Journal of Reproduction 2021年第5期10卷 225-231页

作者： Anjaneyababu Naik Banavath sridevi Nangali Srinivasa Department of Anatomy Sri Devaraj Urs Medical CollegeSri Devaraj Urs Academy of Higher Education and ResearchTamakaKolarKarnatakaIndia

Objective:To study the effect of mobile emitted radio frequency electromagnetic radiation(RF-EMR)on sperm parameters(sperm count,viability,motility,progressivity,and morphology)and ameliorative effect of pomegranate juice in ***:Thirty male Sprague Dawley rats were divided into five groups(n=6 in each group).GroupⅠwas neither exposed to RF-EMR nor given pomegranate juice,groupⅡ,ⅢandⅣwere exposed to mobile emitted RF-EMR for 60 min/day for 90 *** 90-day exposure to RF-EMR,groupⅢwas supplemented with pomegranate juice for 90 days(1 mL/day)and groupⅣwas allowed to recover for 90 days without supplementation of pomegranate ***Ⅴwas supplemented with pomegranate juice for 90 days without exposure to *** the end of intervention,epididymal sperm parameters(sperm count,viability,motility,progressivity,and morphology)were ***:The microscopic examination of sperm parameters such as sperm count,sperm viability,sperm motility,progressivity were significantly decreased in groupⅡ(the mobile RF-EMR group)compared to groupⅠ(the control group)(P0.05).The sperm parameters were non-significantly increased in group V(the pomegranate juice group)compared to groupⅠ(P>0.05).Conclusions:Mobile RF-EMR exposure reduces the sperm parameters,which,however,can be reversed by treatment with pomegranate juice,indicating that pomegranate juice can be used as a nutritional supplement to improve sperm quality.

关键词： Mobile radioelectromagnetic radiation Pomegranate juice Sperm parameters Male infertility Anthocyanin Spermatocytogenesis Epididymis Sperm morphology

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A novel multi-stable sinusoidal chaotic map with spectacular behaviors

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Communications in Theoretical Physics 2023年第11期75卷 3-14页

作者： Ahmed M Ali Ali sridevi Sriram Hayder Natiq Atefeh Ahmadi Karthikeyan Rajagopal Sajad Jafari Department of Electronics Techniques Babylon Technical InstituteAl-Furat Al-Awsat Technical UniversityBabylon51001Iraq Al-Mustaqbal University College Babylon51001Iraq Centre for Computational Biology Chennai Institute of TechnologyChennai600069Tamil NaduIndia Department of Computer Technology Engineering College of Information TechnologyImam Ja’afar Al-Sadiq UniversityBaghdad10001Iraq Department of Biomedical Engineering Amirkabir University of Technology(Tehran Polytechnic)TehranIran Centre for Nonlinear Systems Chennai Institute of TechnologyChennai600069Tamil NaduIndia Department of Electronics and Communications Engineering and University Centre of Research and Development Chandigarh UniversityMohali140413PunjabIndia Health Technology Research Institute Amirkabir University of Technology(Tehran Polytechnic)TehranIran

Chaotic behavior can be observed in continuous and discrete-time *** behavior can appear in one-dimensional nonlinear maps;however,having at least three state variables in flows is *** to the lower mathematical complexity and computational cost of maps,lots of research has been conducted based on *** paper aims to present a novel one-dimensional trigonometric chaotic map that is multi-stable and can act *** proposed chaotic map is first analyzed using a single sinusoidal function;then,its abilities are expanded to a map with a combination of two sinusoidal *** stability conditions of both maps are investigated,and their different behaviors are validated through time series,state space,and cobweb ***,the influence of parameter variations on the maps’outputs is examined by one-dimensional and two-dimensional bifurcation diagrams and Lyapunov exponent ***,the diversity of outputs with varying initial conditions reveals this map’s *** newly designed chaotic map can be employed in encryption applications.

关键词： chaotic map discrete chaos sinusoidal map multi-stability dynamical analysis

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Proximity labeling: an emerging tool for probing in planta molecular interactions

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Plant Communications 2021年第2期2卷 1-15页

作者： Xinxin Yang Zhiyan Wen Dingliang Zhang Zhen Li Dawei Li ugrappa Nagalakshmi Savithramma P.Dinesh-Kumar Yongliang Zhang State Key Laboratory of Agro-Biotechnology and Ministry of Agriculture Key Laboratory of Soil Microbiology College of Biological SciencesChina Agricultural UniversityBeijing 100193P.R.China State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China Department of Plant Biology and the Genome Center College of Biological SciencesUniversity of CaliforniaDavisDavisCA 95616USA

Protein–protein interaction(PPI)networks are key to nearly all aspects of cellular ***,the identification of PPIs is important for understanding a specific biological process in an *** with conventional methods for probing PPIs,the recently described proximity labeling(PL)approach combined with mass spectrometry(MS)-based quantitative proteomics hasemerged as apowerful approach for characterizing ***,the application of PL in planta remains in its ***,we summarize recent progress in PL and its potential utilization in plant *** specifically summarize advances in PL,including the development and comparison of different PL enzymes and the application of PL for deciphering various molecular interactions in different organisms with an emphasis on plant systems.

关键词： protein interactions proximity labeling biotin ligase plant membrane contact sites organelles

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A universal strategy for the creation of machine learning-based atomistic force fields

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npj Computational Materials 2017年第1期3卷 146-153页

作者： Tran Doan Huan Rohit Batra James Chapman sridevi Krishnan Lihua Chen Rampi Ramprasad Department of Materials Science&Engineering and Institute of Materials Science University of Connecticut97 North Eagleville Rd.Unit 3136StorrsCT 06269-3136USA

Emerging machine learning(ML)-based approaches provide powerful and novel tools to study a variety of physical and chemical *** this contribution,we outline a universal strategy to create ML-based atomistic force fields,which can be used to perform high-fidelity molecular dynamics *** scheme involves(1)preparing a big reference dataset of atomic environments and forces with sufficiently low noise,e.g.,using density functional theory or higher-level methods,(2)utilizing a generalizable class of structural fingerprints for representing atomic environments,(3)optimally selecting diverse and nonredundant training datasets from the reference data,and(4)proposing various learning approaches to predict atomic forces directly(and rapidly)from atomic *** the atomistic forces,accurate potential energies can then be obtained by appropriate integration along a reaction coordinate or along a molecular dynamics *** on this strategy,we have created model ML force fields for six elemental bulk solids,including Al,Cu,Ti,W,Si,and C,and show that all of them can reach chemical *** proposed procedure is general and universal,in that it can potentially be used to generate ML force fields for any material using the same unified workflow with little human ***,the force fields can be systematically improved by adding new training data progressively to represent atomic environments not encountered previously.

关键词： utilizing preparing selecting

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In vitro antioxidant activities of Solanum surattense leaf extract

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Asian Pacific Journal of Tropical Biomedicine 2013年第1期3卷 28-34页

作者： sridevi Muruhan Senthil Selvaraj Pugalendi Kodukkur Viswanathan Department of Biotechnology.Faculty of Engineering Vinayaka Missions Engineering CollegeVinayaka Missions University Department of Biochemistry & Molecular Biology School of Medicine & Health SciencesUniversity of North Dakota Department of Biochemistry and Biotechnology Faculty of ScienceAnnamalai University

Objective:To evaluate the antioxidant activity of alcoholic leaf-extract of Solanum surattense(Solanaceae)(***).Methods:Leaf extract were tested for in vitro free radical scavenging assays,such as hydroxyl radical and hydrogen peroxide,inhibition of superoxide anion radical and 2,2-diphenyl-1-picryl hvdrazyl radical(DPPH),total antioxidant activity and reducing ***,total phenolic content of *** was ***:*** extract effectively scavenged free radicals at all different concentrations and showed its potent antioxidant ***,these effects were in a dose dependent *** were compared to standard antioxidants such as butylated hvdroxytoluene,ascorbic acid andα-***:*** have strong antioxidant *** the study validates the therapeutic benefits of the Indian system of medicine.

关键词： Solanum surattense DPPH Lipid peroxidation Antioxidant

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Finite Difference Approach on Magnetohydrodynamic Stratified Fluid Flow Past Vertically Accelerated Plate in Porous Media with Viscous Dissipation

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Frontiers in Heat and Mass Transfer 2024年第3期22卷 939-953页

作者： M.sridevi B.Shankar Goud Ali Hassan D.Mahendar Department of Mathematics Koneru Lakshmaiah Education Foundation HyderabadTelangana500043India Department of Mathematics JNTUH University College of EngineeringScience&TechnologyHyderabad(TS)500085India Department of Mathematics University of GujratGujrat50700Pakistan Department of Mechanics and Aerospace Engineering Southern University of Science and TechnologyShenzhenChina B V Raju Institute of Technology NarsapurMedakIndia

This study intends to evaluate the influence of temperature stratification on an unsteady fluid flow past an accelerated vertical plate in the existence of viscous *** is assumed that the medium under study is a grey,non-scattered fluid that both fascinates and transmits *** leading equations are discretized using the finite differencemethod(FDM).UsingMATLABsoftware,the impacts of flowfactors on flowfields are revealed with particular examples in graphs and a *** this regard,FDM results show that the velocity and temperature gradients increase with an increase of Eckert ***,tables of the data indicate the influence of flow-contributing factors on the skin friction coefficients,and Nusselt *** comparing constant and variable flow regimes,the constant flow regime has greater values for the nondimensional skin friction *** research is both innovative and fascinating since it has the potential to expand our understanding of fluid dynamics and to improve many different sectors.

关键词： MHD FDM stratified fluid porous media unsteady flow

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Lower blood malondialdehyde is associated with past pesticide exposure:findings in Gulf War illness and healthy controls

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Military Medical Research 2022年第2期9卷 205-214页

作者： Beatrice Alexandra Golomb sridevi Devaraj Alexis K.Messner Hayley Jean Koslik Jun Hee Han Barnabas Yik Department of Medicine School of MedicineUniversity of CaliforniaSan DiegoLa JollaCA 92093USA Department of Pathology and Immunology Baylor College of MedicineHoustonTX 77030USA Swedish Medical Center SeattleWA 98109USA Henry M.Jackson Foundation for the Advancement of Military Medicine San DiegoCA 92134USA Santa Clara Valley Medical Center San JoseCA 95128USA

Background: Malondialdehyde(MDA) is a candidate general marker of oxidative stress(OS). We sought to assess the relation of MDA to Gulf War illness(GWI) and to a variety of ***: This is an observational study involving subjects from Southern California recruited from October 2011 to May 2014. MDA was assessed in 81 participants(41 GWI-cases, 40 controls). General and Gulf-specific exposures were elicited. MDA case–control comparison was restricted to 40 matched pairs. The potential association between MDA and exposures was assessed using regression analyses. Gulf-specific exposures were incorporated into a case-specific ***: Plasma MDA was significantly lower in GWI-cases than controls. Composite pesticide and fuel-solvent exposures negatively predicted MDA in the total sample, as well as in the analyses that included either GWI-cases or controls only. Self-reported exposure to organophosphate(OP) nerve gas was a strong predictor for lower MDA level in veterans with ***: Past pesticide exposures predicted lower MDA in both veterans with GWI and in healthy controls.

关键词： Malondialdehyde Oxidative stress Free radical Gulf War veterans Gulf War illness Pesticide

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