39 research outputs found

    Panel Cointegration Modelling of COVID-19 Monthly Infected Cases and Deaths

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    In this paper, the cointegration relationships between COVID-19 new infection cases and the number of deaths due to COVID-19 in all 37 districts of Tamil Nadu state, India, during the period from July 3, 2020 to March 31, 2021 are investigated based on a panel regression Fully Modified Least Squares method and the Granger causality test

    ARDL Bound Test Cointegration Modeling For COVID-19 Infected Cases And Deaths

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    The main purpose of this paper is to investigate the significant long-run and short-run dynamic relationships between the cumulative numbers of COVID-19 infected cases and deaths due to COVID-19 infections as of 31st May 2021, starting from 7th March 2020. Furthermore, the stability of the estimated model parameters is studied. To assess the consistency of the model parameters, the cumulative sum of recursive residuals test and the cumulative sum of recursive residuals squares tests are used. Additionally, cointegration equations such as the Fully Modified Ordinary Least Square, Dynamic Ordinary Least Squares, and Canonical Cointegration Regression are applied to check the long-run elasticities in the concerned relationship

    Optimization and characterization of green synthesized silver nanoparticles and its inhibitory activity against biofilm forming bacterial pathogens

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    In the present study, antibacterial activity of silver nanoparticles synthesized from entophytic fungi extracts were analysed against biofilm forming bacteria include the Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, and Pseudomonas aeruginosa isolated from clinical specimens. Therefore, we tried to establish a combination of medicinal and nanotechnology possibly with the field of medicine for the development of antibacterial agents against these strains. The nanoparticles were characterized by UV–visible spectroscopy, the presented and capped molecules of proteins with nanoparticles was confirmed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD). UV–visible studies display an absorption band at 420 nm due to surface Plasmon resonance (SPR) of the silver nanoparticles. The intra cellular synthesized silver nanoparticles (Ag NPs) size 15-35 nm was determination of X-ray diffraction (XRD) crystal calculation, antimicrobial activity higher than the standard antibiotic. The nanoparticle treated with isolated bacteria as result macromolecule of proteins denatures and oozing out the cells and measure the Bradford method. The nanoparticle treated bacterial cells were compared to negative control more amount of protein released. The nano size establishing the silver nanoparticles directly bind with DNA of the pathogenic bacterial strains most important to higher antimicrobial activity

    Fuzzy Time Series Modeling for Paddy (Oryza sativa L.) Crop Production

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    Abstract This paper investigates predictive performance of fu zzy time series analysis method for paddy production trends. Parametric models such as linear, non-linear and time series analysis have been conventionally used for modeling univariate and multivariate time series data sets. However, these analyses have several limitations such as assumption of the model, stationarity, normality, randomness etc. Particularly fo r non linear dataset, difficult ies exist in time series practice. Fuzzy time series analysis is first suggested by Song and Chisso

    Modeling And Monitoring Covid-19 Monthly Infected Cases and Deaths

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    In this paper, the relationships, and trends in the number of COVID-19 infected new cases and the number of deaths due to COVID-19 in all 37 districts of Tamil Nadu state, India, during the period, 3rd July, 2020 to 31st March, 2021 are studied based on a panel regression model. The interesting results obtained in this paper are that even though the data is Panel type, none of the panel regression models are found suitable whereas the Constants Coefficient Model (Pooled Regression Model) is found suitable to study the relationships between number of covid infects and deaths. The average death due to COVID-19 was about 1.6%

    Becker′s Muscular Dystrophy-A Case Report

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    A case of Becker′s Muscular dystrophy (BMD) in a 26-year-old male is reported. Muscle biopsy immunohistochemical staining showed absence of labelling for dystrophin along the sacrolemmal membrane in majority of the fibres. Antibodies to adhalin and merosin showed normal localisation along the sacrolemma

    IN VITRO GROWTH INHIBITORY EFFECT OF ZnO NANOPARTICLES ON HUMAN LIVER CANCER CELL LINES (Huh7)

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    Objective: The objective of the study was to access the anticancer activity of the biosynthesized ZnO nanoparticles against Huh7 liver cancer cell lines. Methods: The study was carried in vitro using Huh7 cell lines. The ZnO nanoparticles (ZnO NPs) were synthesized using Luffa acutangula peel extract and subjected to characterization by X-ray powder diffraction and transmission electron microscopy. The Huh7 cell lines were treated with ZnO NPs and done 3-(4, 5-dimethylthiazol- 2-yl)-2, 5-diphenyltetrazolium bromide assay. For live and dead assay, the cell lines treated with ZnO NPs were subjected to acridine orange/ethidium (AO/ET) bromide assay. Results: The ZnO NPs synthesized show spherical structure with 10–20 nm size. The 50% of Huh7 proliferation were inhibited at the concentration (IC50) of 40 μg/ml. The AO/ET assay shows compact nucleus and fine cytoplasmic morphology in control cells and apoptotic stage in treated cells Conclusion: This study suggests that ZnO NPs can be prepared in environment-friendly method using aqueous extract of L. acutangula and can be used in cancer treatment effectively

    Corrosion Inhibition by -Phthalic Acid -Zn 2+ System

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    ABSTRACT The inhibition effect of Phthalic acid(PA) -Zn 2+ system controls the corrosion of carbon steel has been studied by weight -loss method. The weight -loss study reveals that the formulation consisting of 60 ppm of Zn 2+ , 50 ppm of phthalic acid has 82 % inhibition efficiency. Synergistic effect exists between phthalic acid-Zn 2+ system. The influence of N-cetyl-N, N, N-trimethylammonium bromide(CTAB) on the PA-Zn 2+ system control the microbial corrosion. The value of the separation factor, RL indicated the phthalic acid-Zn 2+ system was favorable adsorption. The Adsorption equilibrium exhibited better fit to Langmuir isotherm than Freundlich isotherm. The protective film consists of Fe 2+ -Phthalic acid and Zn(OH) 2 by FTIR spectroscopy
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