60 research outputs found

    A study on customer’s e - shopping behavior and satisfaction: special reference to working women in Chennai

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    The growth rate of India’s e-commerce industry is fascinating. It was reported as 88% in 2013 which is a clear contrast picture of the slower economic growth of India. The purpose of this study is to analyse factors affecting on e- shopping behaviour of working women in Chennai city that might be one of the most important issues of e-commerce and marketing field. However, there is very limited knowledge about online consumer behaviour for women because it is a complicated socio-technical phenomenon and involves too many factors. One of the objectives of this study is covering the shortcomings of previous studies that didn't examine main factors that influence on online shopping behaviour for working women. Purchasing items and products through the web is a very easy task to do. It is now playing a very important role in everybody’s life especially working women with a very busy life schedule. This goal has been followed by using a model examining the impact of perceived risks, infrastructural variables and return policy on attitude toward online shopping behaviour and subjective norms, perceived behavioural control, domain specific innovativeness and attitude on online shopping behaviour as the hypotheses of study. To investigate these hypotheses 90 questionnaires dispersed among online stores. Respondents to the questionnaire were women consumers of online stores in which randomly selected. The statistical tools used to analyze the data with reference to the selected objectives of the study is factor analysis. The proposed conceptual model was developed and tested through a factor analysis to reduce data dimensions

    Oscillatory Behavior of Second Order Neutral Dierence Equations with Mixed Neutral Term

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    In this paper, we study the oscillatory behavior of solution of second order neutral dierence equation with mixed neutral term of the form(an(zn)) + qnx(n) = 0; n 2 N0; where zn = xn + bnxnô€€€l + cnxn+k and 1Ps=n01as= 1. We obtain some new oscilla-tion criteria for second order neutral dierence equation. Examples are presented to illustrate the main results

    Almost Oscillation Criteria for Second Order Neutral Difference Equations

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    In this paper, we consider the second order neutral difference equation of the form ∆ (an(∆zn) α ) + qnx β n−σ = en, n ≥ n0, where zn = xn + pnxn−τ and α > 0, β > 0 are the ratios of odd positive integers. Examples are provided to illustrate the results

    Comparative study on analysis of vitreous humour and synovial fluid in determining post-mortem interval (time since death).

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    Post mortem interval is the interval between the death and time of examination of a body. This is important in knowing when the crime was committed. It helps police to start their inquiries with the available information and also in dealing the cases more efficiently. It also helps in including and excluding the suspects and culprits and in confirming the statements of the suspect. Estimation of time since death is useful in civil cases such as inheritance of property, insurance claims etc. It has been concluded from this study that there is a linear correlation between time since death and the potassium levels in samples collected from right and left vitreous humour and synovial fluid at different time intervals. There is no significant difference in the values of samples from both the sides. There is also no significant difference between the values of vitreous humour and synovial fluid. The study also concludes that the sodium values are not statistically significant and shows negative correlation with time since death

    SVPWM CONTROLLED PERMANENT MAGNET SYNCHRONOUS MOTOR

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    Multilevel inversion is a power conversion strategy in which the output voltage is obtained in steps. In recent years, the multilevel inverters have drawn tremendous interest in the area of high-power medium-voltage energy control. Several modulation and control strategies have been developed or adopted for multilevel inverters including the following multilevel Sinusoidal Pulse Width Modulation (SPWM), and Space Vector Modulation. In this paper simulation of SVPWM are applied for performance analysis of PMSM using voltage source inverter. The THD and speed torque analysis for PMSM are simulated using MATLAB simulink

    PRODUCTION AND PURIFICATION OF ANGIOTENSIN-CONVERTING ENZYME INHIBITOR BY SELECTED BACTERIAL STRAIN FOR CANCER THERAPY

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    Objective: The present study was planned to explore safer, innovative and economic Angiotensin-converting enzyme inhibitors (ACEi) from beef extract by the action of a proteolytic Micrococcus luteus. Cytotoxicity of the stable peptide was predicted using MCF-7 cell line in vitro.Methods: ACEi was purified by sequential steps of ethanol precipitation, ion exchange column chromatography (MonoQ) and gel filtration column chromatography (Sephadex G25). The apparent molecular mass was determined by SDS-PAGE. The anticancer property was analyzed by studying the cytotoxicity effects of angiotensin converting enzyme inhibitor using Breast cancer MCF-7 cell linesResults: The peptide was purified and molecular mass was determined as 4.5 kDa. The IC50 value of peptide was found to be 59.5 µg/ml. The DNA fragmentation was not observed in the treated cells. The purified peptide has demonstrated to induce apoptosis of cancer cell. The results proved that the peptide has the ability to be used for cancer therapy.Conclusion: The presence of ACE inhibition activities in the fermentation of beef extract using Micrococcus luteus has been investigated. The Peptide has been determined as an active compound that inhibited the activity of ACE. These properties indicate the possibilities of the use of purified protein as a potent anticancer agent.Keywords: Angiotensin-converting enzyme inhibitors, Micrococcus luteus, Anti-proliferative, Anti-metastatic, MCF-7 cell line, Anticancer activity

    ISOLATION OF ANGIOTENSIN-CONVERTING ENZYME INHIBITOR PRODUCING BACTERIA FROM COW MILK

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    Objective: To evaluate the potential of protease producing organism for the production of Angiotensin I–converting enzyme (ACE) inhibitor by fermentation of various protein substrates.Methods: Bacterial strains were isolated from cow milk collected in Coimbatore, Tamil Nadu, India by using serial dilution technique, plated on nutrient agar medium. The identity of the strain was ascertained by 16s rRNA gene sequencing method and was submitted to the NCBI GenBank nucleotide database. Various substrates were screened for ACE inhibitor production by the fermentation with the isolated strain.Results: The isolated coded as BUCTL09, which showed a significant zone of clearance was selected and identified as Micrococcus luteus (KF303592.1). Among the seven substrates, only beef extract fermented broth showed an inhibition of 79% and was reported as the best substrate.Conclusion: In the search for non-toxic, and economic ACE inhibitors as an alternative to the synthetic drugs, many natural ACE inhibitors have been isolated from a microbial source. In the present study, isolate BUCTL09 was selected for the production of ACE inhibitor from the beef extract. Findings from this study lead us to investigate this potent ACE inhibitor further for its biological properties and to explore the impending efficacy of the ACE inhibitor which may conceivably be developed into a prospective drug

    Biocontrol Agents Induce Disease Resistance in Phyllanthus niruri Linn against Damping-Off Disease Caused by Rhizoctonia solani

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    Five isolates each of Trichoderma viride and Pseudomonas fluorescens and four isolates of Bacillus subtilis were evaluated for their ability to control Rhizoctonia solani, the causal agent of damping off of Phyllanthus niruri. Among the isolates tested, TVUV10 (T. viride), PFMMP (P. fluorescens) and BSG3 (B. subtilis) showed maximum in vitro inhibition of mycelial growth of R. solani. Isolate PFMMP was also very effective in reducing disease incidence in greenhouse conditions. The effective isolates were evaluated for their ability to induce defense reactions in P. niruri plants. Earlier and increased activity of phenylalanine ammonia lyase, peroxidase, polyphenoloxidase and total phenolics were observed in the biocontrol-agent pretreated P. niruri plants challenged with R. solani. Isolate PFMMP caused early and increased synthesis of all defense related enzymes and total phenol. The present study showed that isolates TVUV10, PFMMP and BSG3 of T. viride, P. fluorescens and B. subtilis respectively are good candidates for the control of R. solani in P. niruri

    Enhanced Dispersion of TiO2 Nanoparticles in a TiO2/PEDOT:PSS Hybrid Nanocomposite via Plasma-Liquid Interactions

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    A facile method to synthesize a TiO2/PEDOT:PSS hybrid nanocomposite material in aqueous solution through direct current (DC) plasma processing at atmospheric pressure and room temperature has been demonstrated. The dispersion of the TiO2 nanoparticles is enhanced and TiO2/polymer hybrid nanoparticles with a distinct core shell structure have been obtained. Increased electrical conductivity was observed for the plasma treated TiO2/PEDOT:PSS nanocomposite. The improvement in nanocomposite properties is due to the enhanced dispersion and stability in liquid polymer of microplasma treated TiO2 nanoparticles. Both plasma induced surface charge and nanoparticle surface termination with specific plasma chemical species are proposed to provide an enhanced barrier to nanoparticle agglomeration and promote nanoparticle-polymer binding
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