366 research outputs found

    A statistical analysis of corpus based approach on learning sentence patterns

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    This research paper examines the adverse effect of theoretical explanation of the grammatical rules among the learners. Exploration of the methods and materials taught inductively or deductively is the panacea to achieve the required goal. The study throws light on the pedagogical implication of adopting appropriate methods and materials for building the learners’ grammar and language. It primarily intends to explore a new teaching method using language corpora that can be employed in the English grammar classes in colleges at the undergraduate level. It strives to evaluate the effectiveness of teaching sentence patterns through corpus based activities comparing with the traditional based teaching. Thus the methodology aims to encourage students to become independent corpus users

    Elephant (Field Based) in Natrinai Song

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    Human life requires language. Without language there is no human life. Civilization and one-to-one communication occurs through language. Man expresses thought through language. Poets have expressed their eloquence and depth of language through song. Because of this, it is necessary to carry out studies on the words they say nowadays. A word in Tamil has not only one meaning but also many meanings. There are no words without meaning. In the Sangam literature, among the eighteen above mentioned texts, the Naritana is placed as the first deposit. This article deals with the etymological analysis of the word 'Elephant' in the narrative songs

    Characterization of Indium Doped Tin Disulphide Thin Films using Modified Spray Pyrolysis Technique

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    Precursor solutions of tin tetrachloride monohydrate (0.1 M), n-n dimethyl thiourea (0.05 M, 0.1 M and 0.2 M) were used to prepare Tin disulphide (SnS2) thin films had been deposited onto glass substrates at different molar concentration at the substrate temperature 573 K using modified spray pyrolysis technique. At the molar concentration ratio 1:2, the physical properties were studied for undoped and Indium doped tin disulphide thin films. Using hot probe technique, the films are found to be n type electrical conduction. X ray diffraction analysis revealed single phase tin disulphide thin film with higher intensity and belongs to hexagonal structure and the polycrystalline nature of a preferential orientation along (002) plane. The crystallites sizes were determined using the Full Width at Half Maximum values of Bragg peaks. SEM micrographs had shown that morphologies of the films changed with Indium doping. The optical absorption and transmittance spectra have been recorded for as prepared films in the visible wavelength range in nanometer. From the analysis of the absorption region data, direct and direct forbidden optical transition nature was determined for the films in the above wavelength range. FTIR study had been carried out for the bond evaluation

    COMBINED EFFECT OF SELECTIVE BIOACTIVE COMPOUNDS FROM PLANT ORIGIN IN AN ANIMAL MODEL OF ANXIETY

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    Objective: Evidence is emerging that specific combinations of bioactive compounds may be far more effective in protecting against several diseases as compared to the effect of a single compound. The present study was aimed to investigate the interactive effect of Diosgenin and Silymarin, the bioactive compounds from plant origin in an animal model of anxiety. Methods: Albino wistar rats of either sex were divided into five groups and treated for 5 d. Group I and II served as control and standard and test groups were treated with Diosgenin (100 mg/kg, p. o.), Silymarin (100 mg/kg, p. o.) and combination of Diosgenin (50 mg/kg, p. o.)+Silymarin (50 mg/kg, p. o.), respectively. Diazepam (1 mg/kg, i. p.) was used as a standard for the study. Anxiolytic effects were studied in the Elevated plus-maze, Hole-board test and Light/Dark model. Results: The results suggested that Diosgenin when given alone at a dose of 100 mg/kg, does not shown significant anxiolytic effect when as compared with control. Whereas, the compound Silymarin (100 mg/kg) shown significant anti-anxiety effect (P<0.01), independently. The same two bioactive compounds, given in combination at a dose of 50 mg/kg, (each), exhibited significant anxiolytic-like effect, potentially. Conclusion: It can be concluded that Diosgenin has got a synergistic effect on anti-anxiety action when given in combination with Silymarin

    Principles and Practices of Seismic Microzonation: Case Studies in India

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    This paper presents an overview of the principles and practices of seismic microzonation with some case studies in India. India has experienced major damages and loss of life due to earthquakes. Macrozonation map in Indian seismic code IS-1893 is frequently revised soon after a major earthquake in the country. New revision which was published in 2002 after Bhuj earthquake in 2001 contains four macro zones. These zones are based on geology and limited seismology input without considering geotechnical aspects such as site effects and liquefaction. In order to understand the earthquake vulnerability of major urban centers and prepare new zonation map, the Govt. of India has initiated microzonation of 63 cities in India after 2001 earthquake. Many microzonation studies are under progress and few of them have been completed. This paper presents an overview of these studies. Seismic microzonation of Jabalpur urban area is the first work in India towards seismic microzonation of Indian cities. Jabalpur study has provided many learning lessons to other studies. Preliminary microzonation of Delhi has been completed and detailed one is under progress. Seismic Hazard and Microzonation Atlas of the Sikkim Himalaya has been published with geological and seismological background. Microzonation of Guwahati was done based on geology, geomorphology, seismotectonics, soil characteristics, pre-dominant frequencies, peak ground acceleration, seismic hazard and demography. Seismic Microzonation of Dehradun has been prepared based on shear wave velocity with site response. First order Microzonation of Haldia has been developed based on peak ground acceleration, predominant frequency and elevation map. Different maps and results were presented for Gujarat microzonation based on noise survey and after shock data. None of these studies included the geotechnical aspects. The geotechnical aspects were fully incorporated in the recently completed Microzonation work of Bangalore and the ongoing study of Chennai microzonation. An overview of seismic microzonation studies in India is presented in this paper

    Mandating Self-Imposed Curfew - An Analysis of PM Modi's Janta Curfew Speech

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    This study explores the persuasive strategies used by the Indian Prime Minister (PM) Narendra Modi to appeal to the citizens of India, to observe ‘Janta Curfew’ or People’s Curfew, as a preventive measure to contain the spread of Covid-19 infections in India. The study maps the speech to established strategies and theories of persuasion such as Aristotle’s Rhetorical Triangle, Elaboration Likelihood Model, Monroe's Motivated Sequence, and Cognitive Dissonance Theory; and ascertains the indispensability of the aforementioned theoretical frameworks. The study also identifies Modi’s unique persuasive strategies such as wheedling, building-up (before delivering), complimenting before criticizing, Eutrepismus, and subtly titling the task; and analyzes their effectiveness in persuading the citizens of India to comply with Janta Curfew

    A CRITICAL REVIEW ON POLYURETHANE POLYMER HYBRID NANO COMPOSITES

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    Critical review on polyurethane hybrid nano composite paper gives knowledge on its techniques and their applications. In addition to the scientific framework for the advancement in the polymer matrix hybrid nano composite research, the critical review provides an ample discussion on technology, characterization, processing and its applications on polyurethane hybrid nano composites

    Nuclear genes involved in mitochondria-to-nucleus communication in breast cancer cells

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    BACKGROUND: The interaction of nuclear and mitochondrial genes is an essential feature in maintenance of normal cellular function. Of 82 structural subunits that make up the oxidative phosphorylation system in the mitochondria, mitochondrial DNA (mtDNA) encodes 13 subunits and rest of the subunits are encoded by nuclear DNA. Mutations in mitochondrial genes encoding the 13 subunits have been reported in a variety of cancers. However, little is known about the nuclear response to impairment of mitochondrial function in human cells. RESULTS: We isolated a Rho(0) (devoid of mtDNA) derivative of a breast cancer cell line. Our study suggests that depletion of mtDNA results in oxidative stress, causing increased lipid peroxidation in breast cancer cells. Using a cDNA microarray we compared differences in the nuclear gene expression profile between a breast cancer cell line (parental Rho(+)) and its Rho(0) derivative impaired in mitochondrial function. Expression of several nuclear genes involved in cell signaling, cell architecture, energy metabolism, cell growth, apoptosis including general transcription factor TFIIH, v-maf, AML1, was induced in Rho(0) cells. Expression of several genes was also down regulated. These include phospholipase C, agouti related protein, PKC gamma, protein tyrosine phosphatase C, phosphodiestarase 1A (cell signaling), PIBF1, cytochrome p450, (metabolism) and cyclin dependent kinase inhibitor p19, and GAP43 (cell growth and differentiation). CONCLUSIONS: Mitochondrial impairment in breast cancer cells results in altered expression of nuclear genes involved in signaling, cellular architecture, metabolism, cell growth and differentiation, and apoptosis. These genes may mediate the cross talk between mitochondria and the nucleus

    CLOUD COMPUTING SECURITY THROUGH SYMMETRIC CIPHER MODEL

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    ABSTRACT Cloud computing can be defined as an application and services which runs on distributed network using virtualized and it is accessed through interne
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