346
20
11858
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Title
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Articles
Article
Faculty Publications -Articles
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Title
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Is there spill-over effect among metals?
Subject
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Metal price volatility; Multivariate GARCH; Volatility persistence; Volatility spill-over effect
Description
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This paper was aimed at examining the existence of volatility spill-over between precious and industrial metals by estimating Multi-variate GARCH model. Metals chosen for this study were aluminium, copper, gold and silver. Data from 1st march 2004 to 31st March 2018 were used for the analysis. Significant clustering effect was found in the variance of all the metals studied. Significantly strong volatility spill-over was found between aluminium and copper when compared to other metals. It was also noted that the persistence of volatility spill-over between copper and aluminium is the least among other metals. Since there is significant spill-over between aluminium and copper, portfolio managers are advised to avoid investing in them together in their portfolios. 2019 SERSC.
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Sunil N.S.; Natchimuthu N.
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International Journal of Advanced Science and Technology, Vol-29, No. 2, pp. 72-80.
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Science and Engineering Research Support Society
Date
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2020-01-01
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<a href="" target="_blank" rel="noreferrer noopener"></a>
<br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083074451&partnerID=40&md5=e0400c84f38b5f41846857e60577c213" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083074451&partnerID=40&md5=e0400c84f38b5f41846857e60577c213</a>
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Restricted Access
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ISSN: 20054238
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Online
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English
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Article
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Sunil N.S., Department of Commerce, Christ (Deemed to be university), Delhi NCR, Ghaziabad, 201003, Delhi NCR, India; Natchimuthu N., Department of Commerce, Christ (Deemed to be university), Hosur Main road, Bangalore, 560029, Karnataka, India
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Title
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Conference Papers
Conference Paper
Faculty Publications- Conference Papers
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Title
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Islanding detection technique of distribution generation system
Subject
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Active methods; Detection techniques; DQ-PLL method; Islanding; Passive methods
Description
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Islanding is a condition in which the micro grid is disconnected from the main grid which consists of loads and distribution generation. Islanding is required whenever there is a fault and whenever the maintenance is required. Under normal condition or stable condition, the system works under constant current control mode. After islanding the system switched to voltage controlled mode. There are different methods that can be used to detect islanding situation such as active and passive methods. In this paper DQ-PLL detection technique used for detecting islanding condition is carried out. This paper also explains in detail the advantages of DQ-PLL method for islanding detection The implementation is validated by using MATLAB/SIMULINK software. 2016 IEEE.
Creator
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Menon D.; Antony A.
Source
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Proceedings of IEEE International Conference on Circuit, Power and Computing Technologies, ICCPCT 2016
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Institute of Electrical and Electronics Engineers Inc.
Date
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2016-01-01
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<a href="https://doi.org/10.1109/ICCPCT.2016.7530126" target="_blank" rel="noreferrer noopener">https://doi.org/10.1109/ICCPCT.2016.7530126</a>
<br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992046758&doi=10.1109%2FICCPCT.2016.7530126&partnerID=40&md5=264c744bfbf28d79be6f62c0e7b6130f" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992046758&doi=10.1109%2fICCPCT.2016.7530126&partnerID=40&md5=264c744bfbf28d79be6f62c0e7b6130f</a>
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ISBN: 978-150901277-0
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Online
Language
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English
Type
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Conference paper
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Menon D., Dept. of Electrical Engineering, Faculty of Engineering, Christ University, Bangalore, India; Antony A., Dept. of Electrical Engineering, Faculty of Engineering, Christ University, Bangalore, India
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Title
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Articles
Article
Faculty Publications -Articles
Dublin Core
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Title
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Isolation and Characterization of Antidermatophytic Bioactive Molecules from Piper longum L. Leaves
Subject
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Activity-guided fractionation; Antidermatophytic bioactive molecules; Piper longum
Description
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Piper longum L. (Piperaceae) commonly known as "long pepper" is a well known medicinal plant in ayurveda. Different parts of this plant, such as root, seed, fruit, whole plant etc. are used traditionally in various ailments. Here we have investigated the antidermatophytic activity of sequentially extracted petroleum ether, chloroform, methanol and water extracts from P. longum leaf against Trichophytonmentagrophytes, T. rubrum, T. tonsurans, Microsporum fulvum and M. gypseum. Better activity of chloroform and methanol extracts was observed. The chloroform extract was selected for further study and the MIC value was recorded as 5.0 mg ml-1 against the test organisms. In the chloroform extract, tannins and phenolic compounds were detected. Further activity-guided fractionation of chloroform extract by silica gel column chromatography yielded nine major fractions. Among these, fraction-1, 4, 5 and 7 showed higher antidermatophytic activity. Fraction-4 on further purification by repeated column chromatography yielded a potential antidermatophytic fraction showing MIC value of 0.625 mg ml-1 against T. mentagrophytes and T. rubrum as determined by broth microdilution method. The major compounds were identified as 1,2-benzenedicarboxylic acid, bis(2-ethylhexyl) ester (C24H38O4] (41.45 %), 2,2-dimethoxybutane (C6H14O2] (13.6 %) and ?-myrcene (C10H16) (6.75 %) based on GC-MS data. 2012 Association of Microbiologists of India.
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Das J.; Jha D.K.; Policegoudra R.S.; Mazumder A.H.; Das M.; Chattopadhyay P.; Singh L.
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Indian Journal of Microbiology, Vol-52, No. 4, pp. 624-629.
Date
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2012-01-01
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<a href="https://doi.org/10.1007/s12088-012-0303-x" target="_blank" rel="noreferrer noopener">https://doi.org/10.1007/s12088-012-0303-x</a>
<br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-84870789502&doi=10.1007%2Fs12088-012-0303-x&partnerID=40&md5=8e1de1363f7635b3c6beba39075be195" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84870789502&doi=10.1007%2fs12088-012-0303-x&partnerID=40&md5=8e1de1363f7635b3c6beba39075be195</a>
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All Open Access; Green Open Access
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A related resource
ISSN: 468991; CODEN: IJMBA
Format
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Online
Language
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English
Type
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Article
Coverage
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Das J., Defence Research Laboratory, Tezpur, 784001 Assam, Post Bag No. 2, India; Jha D.K., Microbial Ecology Laboratory, Department of Botany, Gauhati University, Guwahati, 781014 Assam, India; Policegoudra R.S., Defence Research Laboratory, Tezpur, 784001 Assam, Post Bag No. 2, India; Mazumder A.H., Defence Research Laboratory, Tezpur, 784001 Assam, Post Bag No. 2, India; Das M., Christ University, Bangalore, 560029 Karnataka, India; Chattopadhyay P., Defence Research Laboratory, Tezpur, 784001 Assam, Post Bag No. 2, India; Singh L., Defence Research Laboratory, Tezpur, 784001 Assam, Post Bag No. 2, India
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Dublin Core
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Title
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Articles
Article
Faculty Publications -Articles
Dublin Core
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Title
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Isolation and characterization of plant growth promoting bacteria (PGPB) from the rhizosphere of Spinacea oleracea L.
Subject
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Abiotic stress; Halotolerance; Pesticide; Plant Growth Promoting Bacteria (PGPB); Tolerance
Description
An account of the resource
As the years pass by, there is an increase in abiotic stress conditions around the environment that directly or indirectly affect agriculture around the world. Therefore, there is a dire need to increase the sustainability of plants. Plant Growth Promoting Bacteria (PGPB) play an important role in maintaining the physiology and growth of plants under various stress conditions. This study looks into the isolation and characterization of different PGPB from Spinacia oleracea L. and their tolerance against salinity and commonly used commercial pesticides against the Spinacia family. The techniques used are isolation by serial dilution, 16sRna sequencing, characterization of different PGPB assays for confirmation such as ammonia production, catalase test, phosphate solubilisation, potassium solubilization, siderophore production, indole-3-acetic acid production, biofilm formation assay, halotolerance and tolerance study using Minimal Inhibitory Concentration (MIC). PGPB were isolated and characterized from Spinacia oleracea L., which was under an abiotic stress environment. Isolates were Bacillus clarus, Bacillus licheniformis, Paenibacillus alvei SJ6 and Paenibacillus alvei SJ8, having quantities as high as 78.10.004 mgL-1 phosphate solubilization, 43.8 mgL?1 of indole-3-acetic acid production, 14.5660.011 psu of siderophore production and 0.62 0.027 mol mL?1 of ammonia production. All isolates also had considerable amounts of halotolerance up to 10%, whereas Bacillus licheniformis had 12.5% halotolerance. The bacterial isolates had considerable tolerance against commonly used commercial pesticides against green leafy vegetables such as chlorpyriphos + cypermethrin combination and fungicides such as mancozeb. Therefore, this study looks into the isolation of potential plant growth promoting bacteria that have considerable amount of halotolerance and pesticide tolerance. 2025 World Researchers Associations. All rights reserved.
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Swetha J.; Sayantan D.
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Research Journal of Biotechnology, Vol-20, No. 1, pp. 77-87.
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World Researchers Associations
Date
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2025-01-01
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<a href="https://doi.org/10.25303/201rjbt077087" target="_blank" rel="noreferrer noopener">https://doi.org/10.25303/201rjbt077087</a>
<br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85214442012&doi=10.25303%2F201rjbt077087&partnerID=40&md5=fdfdb7957ac622c0fdc194a14d38f5b3" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85214442012&doi=10.25303%2f201rjbt077087&partnerID=40&md5=fdfdb7957ac622c0fdc194a14d38f5b3</a>
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Restricted Access
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ISSN: 22784535
Format
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Online
Language
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English
Type
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Article
Coverage
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Swetha J., Department of Life Sciences, Christ University, Hosur Road, Karnataka, Bangalore, 560029, India; Sayantan D., Department of Life Sciences, Christ University, Hosur Road, Karnataka, Bangalore, 560029, India
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Dublin Core
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Title
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Articles
Article
Faculty Publications -Articles
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Title
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Isolation and characterization of polyhydroxyalkanoate producing halotolerant Bacillus subtilis SG1 using marine water samples collected from Calicut coast, Kerala
Subject
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Bacillus subtilis; Bacterial biopolymer; Halotolerance; Polyhydroxyalkanoates
Description
An account of the resource
Halotolerant bacterial strain isolated from the Calicut coast, Kerala, India, was screened for its potential ability to synthesize polyhydroxyalkanoates (PHA) using Sudan black B and Nile blue staining. The quantitative analysis for PHA production was done in modified M9 media and a PHA yield of about 1.52 g/L was observed with the most potential isolate SG1. Further, the biochemical and molecular characterization of the PHA-producing halotolerant bacteria was done using standard biochemical tests and 16 s ribosomal RNA sequencing respectively and the isolate was identified to be Bacillus subtilis SG1. Further, the PHA recovery was done using solvent extraction method employing acetone and diethyl ether followed by precipitation using chloroform with a maximum PHA yield of 1.52 g/L. Further, the material properties of the extracted polymer were studied using Fourier transform infrared, X-ray diffraction, nuclear magnetic resonance, thermo gravimetric analysis, and differential scanning calorimetry analysis. Further investigations are necessary to optimize PHA production and to carry out its application study in various fields. 2024 Sneha Grigary, et al.
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Grigary S.; Umesh M.; Mani V.M.
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Journal of Applied Biology and Biotechnology, Vol-12, No. 2, pp. 282-288.
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Open Science Publishers LLP Inc.
Date
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2024-01-01
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<a href="https://doi.org/10.7324/JABB.2024.143107" target="_blank" rel="noreferrer noopener">https://doi.org/10.7324/JABB.2024.143107</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185928829&doi=10.7324%2FJABB.2024.143107&partnerID=40&md5=8e0a260f2c09c4cc759e1d4e143cd2e0" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185928829&doi=10.7324%2fJABB.2024.143107&partnerID=40&md5=8e0a260f2c09c4cc759e1d4e143cd2e0</a>
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All Open Access; Gold Open Access
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A related resource
ISSN: 2347212X | LS; 2023-2024; Vol-2; 0225-0231
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Online
Language
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English
Type
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Article
Coverage
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Grigary S., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, Bengaluru, India; Umesh M., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, Bengaluru, India; Mani V.M., Department of Biotechnology, RVS College of Arts and Science, Tamil Nadu, Coimbatore, India
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https://archives.christuniversity.in/files/original/7d55d8781b44768fef5d12e8c7be49fe.pdf
4eb803e57aa8b6987b99d58b31decf15
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Title
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Thesis
PhD
PhD Thesis
Dublin Core
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Title
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Isolation identification and characterization of a potential probiotic bacteria and its application in aquaculture /
Subject
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Life Science_Biotechnology
Creator
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Thejaswi Bhandary - 1840092
Publisher
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CHRIST (Deemed to be University)
Date
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2024-07-06
Language
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English
Type
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PhD
-
Dublin Core
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Title
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PHD
PhD
PhD Thesis
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
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61000320
Title
A name given to the resource
Isolation of Fungal Endophytes From Hulimavu Lake Flora and Characterization and Optimization of Fungal Enzymes
Subject
The topic of the resource
Life Sciences
Description
An account of the resource
The present work was aimed at isolating fungal endophytes from Hulimavu Lake, newlineextracting their secondary metabolites and fungal enzymes to subsequently probe the newlinebiological properties of these fungal endophytic bioactive compounds and enzymes. newlineHulimavu Lake, known for its notoriously high levels of pollution contributed by newlineanthropogenic factors, was chosen for this study with the literature-evidence backed newlinehypothesis that plant habitat stress also positively favors the type and quanta of bioactive compounds with novel features produced by its endophytes. Literature survey was performed to identify the probable types of plants found in this lake that could be used for the study and these were subsequently collected, identified and processed under laboratory conditions. These plants were authenticated by a certified botanist and were identified as Alternanthera philoxeroides, Ricinus communis and Persicaria glabra. Fungal endophytes were then isolated from different plant parts collected and were screened using preliminary LCB staining followed by DNA sequencing analysis. Based on ITS region sequencing, nucleotide homology and phylogenetic tree mapping, these fungal endophytic cultures were identified as Aspergillus niger, Talaromyces amestolkiae, Cladosporium phaseolorum and Diaporthe phaseolorum. Crude extracts obtained from these fungal endophytes displayed bacterial growth inhibition and significant free radical scavenging/ reduction potential that was comparable to standard ascorbic acid, hence depicting antioxidant activity of these extracts. Owing to their biological properties these crude extracts were further tested for cytotoxic properties on newlinedifferent models like that of Saccharomyces cerevisiae (Baker s yeast), Artemia salina newline(Brine shrimp) and MCF-7 cell line. The presence of fungal endophytic enzymes like newlineprotease, amylase, laccase and lipase was detected qualitatively and estimated newlinequantitatively.
Creator
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Jayaram, Saranya
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Author's Submission
Publisher
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Christ(Deemed to be University)
Date
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2024-01-01
Contributor
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S, Suma
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Open Access
Format
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PDF
Language
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English
Type
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PhD
Identifier
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<a href="http://hdl.handle.net/10603/570003" target="_blank" rel="noreferrer noopener">http://hdl.handle.net/10603/570003</a>
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https://archives.christuniversity.in/files/original/ca23e476c518c621749adcaf2cc8e7b5.pdf
1765c27e5edcb0f0c32e72155bb0cacc
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Thesis
PhD
PhD Thesis
Dublin Core
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Title
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Isolation of fungal endophytes from hulimavu lake flora and characterization and optimization of fungal enzymes /
Subject
The topic of the resource
Life Sciences_Biotechnology
Creator
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Saranya Jayaram - 2071607
Publisher
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CHRIST (Deemed to be University)
Date
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2024-07-11
Language
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English
Type
The nature or genre of the resource
PhD
-
Dublin Core
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Title
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Articles
Article
Faculty Publications -Articles
Dublin Core
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Title
A name given to the resource
Isolation of Plant Growth-Promoting Bacillus cereus from Soil and Its Use as a Microbial Inoculant
Subject
The topic of the resource
Bacillus cereus; Bacterial inoculant; Growth promotion; PGPM; Phaseolus vulgaris
Description
An account of the resource
Modernization has introduced intensive agricultural practices wherein the pesticides play an important role both in stabilization and in increase of agricultural products. As a consequence, humans and members of other ecosystems are exposed to increased levels of compounds that have detrimental effects on their health, thereby signifying the importance of microbial inoculants. In order to achieve this goal 7 different bacterial species were initially screened for isolation of plant growth-promoting Bacillus sp. The isolate CUAMS116 was confirmed to be Bacillus cereus through biochemical and molecular characterization. The in vitro plant growth-promoting ability of the isolate was screened through standard tests. Different concentrations of bacterial inoculant (25%, 50%, 75%, 100%) were evaluated for its plant growth promotion ability using Phaseolus vulgaris L., under pot culture conditions. At the harvest stage, the mature control plants measured 16.53cm and mean treated plant height was measured to be 27.75cm, showing a maximum percentage increase in length of 67.87%. The results suggested that the B. cereus CUAMS116 isolated in this study can be extended as a PGPM through further field trials in other plants for improving crop yield and tolerance to biotic and abiotic stresses. 2020, King Fahd University of Petroleum & Minerals.
Creator
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Sebastian A.M.; Umesh M.; Priyanka K.; Preethi K.
Source
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Arabian Journal for Science and Engineering, Vol-46, No. 1, pp. 151-161.
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Springer Science and Business Media Deutschland GmbH
Date
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2021-01-01
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<a href="https://doi.org/10.1007/s13369-020-04895-8" target="_blank" rel="noreferrer noopener">https://doi.org/10.1007/s13369-020-04895-8</a>
<br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85090061744&doi=10.1007%2Fs13369-020-04895-8&partnerID=40&md5=b97a8e9ded60ad1c71d5b5cbc7c3dadf" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85090061744&doi=10.1007%2fs13369-020-04895-8&partnerID=40&md5=b97a8e9ded60ad1c71d5b5cbc7c3dadf</a>
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Restricted Access
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ISSN: 2193567X
Format
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Online
Language
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English
Type
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Article
Coverage
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Sebastian A.M., Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India; Umesh M., Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India; Priyanka K., Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641105, Tamil Nadu, India; Preethi K., Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641105, Tamil Nadu, India
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
PHD
PhD
PhD Thesis
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Relation
A related resource
61000404
Title
A name given to the resource
Isolation, Characterization and Evaluation of Potential Plant Growth-Promoting Bacteria From The Rhizosphere of Coffea arabica L. From Kodagu District, Karnataka
Subject
The topic of the resource
Life Sciences
Description
An account of the resource
Agriculture is fundamental to food security and economic stability. The utilisation of newlineplant growth-promoting rhizobacteria (PGPR) an eco-friendly alternative to chemical newlinefertilisers is particularly promising as these microorganisms enhance nutrient newlineavailability, stimulate plant growth, and improve resistance to biotic and abiotic newlinestresses. This study aimed to isolate and characterise PGPR from the rhizosphere of newlineCoffea arabica L. in the Kodagu District of Karnataka, focusing on their potential as newlinebiofertilizers. Soil samples collected from ten different locations within Kamath Coffee newlineEstate led to the isolation of fourteen distinct bacterial colonies, labelled NJ01 to NJ14. These isolates were evaluated for various plant growth-promoting (PGP) traits like indole-3-acetic acid (IAA) siderophore and ammonia production, nitrogen fixation, newlinephosphate, and zinc solubilization and hydrogen cyanide (HCN) production. Further newlinestudies were carried out using 3 isolates with significant PGP traits. Enzyme activity newlineassays indicated that NJ01, NJ04, and NJ14 had positive results for protease, cellulase, newlineamylase, and catalase activity. These strains also displayed varying degrees of newlinehalotolerance, with NJ01, NJ04 and NJ14 tolerating up to 8%, 10% and 11% NaCl, newlinerespectively. Heavy metal tolerance tests revealed that NJ01 tolerated Pb up to 250 newlineg/mL, NJ04 tolerated Pb up to 1500 g/mL and Cd up to 50 g/mL, and NJ14 tolerated Pb up to 1000 g/mL and Hg up to 100 g/mL. Polyhydroxyalkanoate (PHA) production was confirmed in all isolates, with NJ01 yielding the highest amount (6.4 g/L). The isolates exhibited significant antifungal and the 16S rRNA sequencing identified NJ01 as Bacillus albus (OP784795), NJ04 as Bacillus licheniformis (OM780221), and NJ14 as Bacillus subtilis (OM780222). A consortium was prepared after confirming the plant growth promoting abilities of these PGPR strains by carrying out an initial plant growth studies. The optimisation of media parameters was by using a two-factor interaction model.
Creator
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Nilina, James
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Author's Submission
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Christ(Deemed to be University)
Date
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2024-01-01
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Umesh, Mridul
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Open Access
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PDF
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English
Type
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PhD
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<a href="http://hdl.handle.net/10603/599604" target="_blank" rel="noreferrer noopener">http://hdl.handle.net/10603/599604</a>
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PHD
PhD
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61000317
Title
A name given to the resource
Isolation, Identification and Characterization of A Potential Probiotic Bacteria and its Application in Aquaculture
Subject
The topic of the resource
Life Sciences
Description
An account of the resource
In the current study, Bacillus subtilis PKB1 was isolated from dried anchovies and identified using morphological and biochemical analysis followed by 16S rRNA sequencing and phylogenetic analysis. The antibacterial and anti- haemolytic properties of the bacteria were also examined. Probiotic qualities were assessed by measuring the isolated strain's tolerance to artificial gastric juice. To assess the isolated strain's capacity for stress tolerance, additional exposure to varied pH, temperature, and organic solvent concentrations was given. Bacillus subtilis in MRS medium produced exopolysaccharide (EPS) which was purified and a maximum yield of 1928mg/L was achieved. The novel exopolysaccharide was purified and characterized to be a heteropolysaccharide. The polysaccharide present had a molecular weight of about 20 kDa overall. FTIR spectroscopy revealed the presence of carboxyl, hydroxyl, and methylene groups in the EPS. The extremely cross-linked structure of the EPS with lumps that resembled spikes was revealed by atomic force microscopy. Scanning Electron Microscopy (SEM) revealed that it possessed rough, asymmetrical lumps. Emulsification activity was also observed in the EPS. The current study's findings suggested that this EPS might make a good candidate for further applications. Utilizing probiotics derived from unconventional sources may improve the variety of probiotics accessible for use in aquaculture procedures. Probiotics are used in the field of aquaculture in order to improve immunity and to protect against pathogenic microbes. Species
such as Aeromonas hydrophila and Vibrio parahaemolyticus are responsible for increasing mortality, decreasing production efficiency and forcing antibiotic overuse. In this study, the role of the isolated probiotic in promoting growth performance in Nile tilapia was examined using growth and challenge studies. The experiment was conducted for a duration of 30 days. Weight gain, histology and mortality rates were studied in the presence and absence of pathogenic microbes. Bacillus subtillis PKB1 supplementation for Nile tilapia helped to maintain the integrity of gill filaments and improved survivability and weight gain when used at a concentration of 1x104 CFU/ml. The study showed that the isolate improved the survival rate of Nile Tilapia against Vibrio parahaemolyticus and Aeromonas hydrophila.
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Bhandary, Thejaswi
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Author's Submission
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Christ(Deemed to be University)
Date
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2024-01-01
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K A, Pari
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Open Access
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PDF
Language
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English
Type
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PhD
Identifier
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<a href="http://hdl.handle.net/10603/560830" target="_blank" rel="noreferrer noopener">http://hdl.handle.net/10603/560830</a>
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Title
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PHD
PhD
PhD Thesis
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61000422
Title
A name given to the resource
Isolation, Screening and Characterisation of Endophytes from Madiwala Lake for Biosurfactant, Bioremediation and Plant-Growth Promotion Properties
Subject
The topic of the resource
Life Sciences
Description
An account of the resource
The significant surge in population, combined with the degradation of the environment, has imposed substantial stress on worldwide food newlinesecurity. The concerning pace of population growth, along with escalating environmental harm due to heightened industrialization, newlinehas indeed exerted considerable pressure on the global food provision. Considering the existing situation, the sustainable approach to enhance agricultural yield and facilitate environmental bioremediation entails utilizing endophytes that reside within plants. Endophytic microorganisms possessing the capacity to promote plant growth and exert biocontrol can significantly boost plant development amidst fluctuating environmental factors, both biotic and abiotic in nature. The current research aimed to extract bacterial and fungal endophytes from Alternanthera philoxeroides and newlineAlternanthera paranichoides and evaluate their potential for enhancing plant growth and controlling pests. Among the isolated newlineendophytic bacteria, Klebsiella pneumoniae exhibited various characteristics conducive to plant growth, leading to enhanced newlinegermination and vegetative growth in Vigna unguiculata plants. The isolate exhibited good Indoleacetic acid (IAA) production newline(48.752.95 g/mL) and potassium solubilization (2.130.07 ppm). The IAA production by K. pneumoniae was further enhanced by 4- fold using the RSM optimization to 195.662.51 g/mL. The newlineendophytic bacteria Bacillus amyloliquefaciens and Bacillus subtilis newlineshowed good extracellular enzyme production and antimicrobial activity along with plant growth promotion. The endophytic bacterium B. amyloliquefaciens showed good newlinebiosurfactant production and bioremediation efficiency. The strain displayed notable resistance to Cr and Pb concentrations upto 2000 mg/L. It was found to possess maximum metal removal efficiency for Pb, 92.3% at pH 9 and 86.2 at 25 oC.
Creator
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Biswas, Soma
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Author's Submission
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Christ(Deemed to be University)
Date
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2024-01-01
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S, Suma.
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Open Access
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PDF
Language
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English
Type
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PhD
Identifier
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<a href="http://hdl.handle.net/10603/618829" target="_blank" rel="noreferrer noopener">http://hdl.handle.net/10603/618829</a>
-
https://archives.christuniversity.in/files/original/500adbb7bd381f297735141ebc1fd19f.pdf
6c6b568f886aa6c830217809254815f3
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Title
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MPHIL
Mphil
Mphil Thesis
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Title
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ISOMORPHIC DECOMPOSITION OF GRAPHS OF SEMI-PRIME SIZE
Creator
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H Nidhi
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
Source
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Mathematics
Description
An account of the resource
In this dissertation, we study the condition required for a graph of semi-prime size to have a Sn decomposition. We have considered the simplest cases with the semi-prime value as 15, which is the product of 3 and 5; graph being a tree; and S4 decomposition is considered. Any graph can be decomposed into subgraphs, but the subgraphs obtained after decomposition need not be isomorphic to each other. We discuss, under what conditions can a tree of size 15 be decomposed such that all the subgraphs obtained is isomorphic to S4.
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Title
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Articles
Article
Faculty Publications -Articles
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Title
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Isothermal autocatalysis of homogeneousheterogeneous chemical reaction in the nanofluid flowing in a diverging channel in the presence of bioconvection
Subject
The topic of the resource
differential transformation method; diverging channel; Gyrotactic microorganisms; heterogeneous reactions; homogeneous reactions; quartic autocatalysis
Description
An account of the resource
The nonlinear differential equations play a prominent role in the mathematical description of many phenomena that occur in our world. A similar set of equations appear in this paper that govern the homogeneous and heterogeneous chemical reactions in the nanofluid flowing between two non-parallel walls. Since the concentration of the homogeneous species is substantially high, quartic autocatalysis is considered for the analysis. It is found to be more effective than the cubic autocatalysis. Further, to avoid the deposition of nanoparticles on the surface, self-propelled microorganisms called gyrotactic microorganisms are allowed to swim in the nanofluid. This movement of microorganisms constitutes a major phenomenon called bioconvection. The set of governing equations thus formed are made dimensionless and the resulting system of equations are solved by Differential Transformation Method (DTM) with the help of Padapproximant that reduces the power series into rational function. This transformation helps in achieving a better convergence rate. The fluid flow analysis is interpreted through graphs and tables where it is observed that the heat source enhances the temperature of the nanofluid. Further, the homogeneous and heterogeneous chemical reaction parameters have significant impacts on the concentration of the reactants. Also, the outcomes indicated that the reaction profiles and motile density profiles increase with the increase in Schmidt number. 2021 Informa UK Limited, trading as Taylor & Francis Group.
Creator
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Khan M.I.; Puneeth V.
Source
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Waves in Random and Complex Media, Vol-34, No. 6, pp. 5438-5458.
Publisher
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Taylor and Francis Ltd.
Date
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2024-01-01
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<a href="https://doi.org/10.1080/17455030.2021.2008547" target="_blank" rel="noreferrer noopener">https://doi.org/10.1080/17455030.2021.2008547</a>
<br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121344231&doi=10.1080%2F17455030.2021.2008547&partnerID=40&md5=96f4c62757722d569fff0e6e3af9836a" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121344231&doi=10.1080%2f17455030.2021.2008547&partnerID=40&md5=96f4c62757722d569fff0e6e3af9836a</a>
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Restricted Access
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ISSN: 17455030
Format
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Online
Language
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English
Type
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Article
Coverage
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Khan M.I., Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing, China, Department of Mathematics and Statistics, Ripah International University, Islamabad, I-14, Pakistan; Puneeth V., Department of Mathematics, CHRIST (Deemed to be University), Bangalore, India
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https://archives.christuniversity.in/files/original/ad081be6242ac7d0be48b85aecc29419.png
ed6af67b46fb88084d1a8f9ae60cdb0e
Dublin Core
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Title
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Articles
Article
Faculty Publications -Articles
Dublin Core
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Title
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It's Liquidation Time at Bhoruka Gases: A Case Study
Subject
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Management
Description
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GFJMR Journal of Management and Research, Vol-6, pp. 78-92. ISSN-2229-4651
Creator
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Sunita Panicker
Publisher
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GFJMR Journal of Management and Research
Date
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2013
Language
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English
-
Dublin Core
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Title
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Articles
Article
Faculty Publications -Articles
Dublin Core
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Title
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ITBC Controlled IPWM for Solar Based Wide Range Voltage Conversion System
Subject
The topic of the resource
Dual energy storage system; ESD; IPWM; Isolated tiny bidirectional DCAC converter; Solar energy
Description
An account of the resource
This paper presents an isolated tiny or micro-bidirectional DCAC converter (ITBC) that operates in a single-phase, single-stage, bidirectional, and isolated configuration. The converter utilises a voltage-in-phase PWM (IPWM) control scheme to regulate the potential conversion ratio of the converter, enabling it to handle a wide voltage range. The converter also enables smooth power flow direction changes and can achieve soft switching, resulting in high efficiency. A unidirectional current controller can be used for both DCAC and ACDC modes. The paper provides detailed information about the micro-inverter's working principles, design procedure, characteristics, and control strategy. The proposed solution is verified by a 500-watt test bench model with a voltage input range of 30 volts to 50 volts. 2024 IETE.
Creator
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Suresh K.; Parimalasundar E.
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IETE Journal of Research, Vol-70, No. 4, pp. 4278-4286.
Publisher
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Taylor and Francis Ltd.
Date
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2024-01-01
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<a href="https://doi.org/10.1080/03772063.2023.2217788" target="_blank" rel="noreferrer noopener">https://doi.org/10.1080/03772063.2023.2217788</a>
<br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85161454284&doi=10.1080%2F03772063.2023.2217788&partnerID=40&md5=a969f44723acd7e77ca140bee90618fb" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85161454284&doi=10.1080%2f03772063.2023.2217788&partnerID=40&md5=a969f44723acd7e77ca140bee90618fb</a>
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ISSN: 3772063
Format
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Online
Language
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English
Type
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Article
Coverage
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Suresh K., Department of EEE, CHRIST (Deemed to be University), Bangalore, India; Parimalasundar E., Department of EEE, SVEC, Tirupati, India
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https://archives.christuniversity.in/files/original/f3cff0e9f9f183bc889c1e030da7f981.jpg
3dfb9350d022c437223716434046c588
Dublin Core
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Title
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Exhibit
Still Image
A static visual representation. Examples include paintings, drawings, graphic designs, plans and maps. Recommended best practice is to assign the type Text to images of textual materials.
Original Format
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Engraved solid pure silver ingots, layered with pure 24-carat gold
Physical Dimensions
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Stamp size is 49.00 mm x 41.00 mm
Gold Replica is 2.2mm thick with diamond cut perforations
Dublin Core
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Title
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J. R. D. Tata
Subject
The topic of the resource
Stamp ingot collection
Description
An account of the resource
J. R. D. Tata, commemorative postage stamp was originally issued by the Department of Posts on 29 November, 1994 on his first death anniversary. He is the first licensed pilot in India and awardee of numerous national and international honors.
Creator
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Hallmark Group Limited
Source
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Pride of India Collection
Publisher
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Authority of India Post
Date
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1994-12-17
Format
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JPG
Type
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Image
-
https://archives.christuniversity.in/files/original/02d9326d4881d7c7bb6910a4707225f8.pdf
a9e22d2be8440fcc22593325804c87d3
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Title
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MASTERS
Masters' Dissertation
Masters Dissertation
Dublin Core
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Title
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Jabbar Patel filmmaking - An auteur theory approach /
Creator
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Ukken, Annette James. - 1324029
Date
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2015-02-03
Source
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Master of Science in Communication
Subject
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Media Studies
Description
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Films are a product of the director‟s mind. Through films we convey and understand certain messages by the use of certain symbols and metaphors that reoccur in our surrounding. Studies show that directors have their own individual style or pattern in which they prefer to portray certain elements in the movie.
Publisher
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CHRIST (Deemed To Be University)
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Department of Media Studies
Format
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PDF
Language
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English
Type
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Masters Dissertation
-
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Title
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Articles
Article
Faculty Publications -Articles
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Jesuit school teachers opinions on incorporating critical consciousness into digital citizenship education
Subject
The topic of the resource
Critical consciousness; digital citizenship; school curriculum; teacher education
Description
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The contemporary global landscape is undergoing swift transformations accelerated by information and digital technologies, which have given rise to a plethora of innovations that enhance human convenience, novel business models, and emerging new professional paths. However, if these technologies are used improperly, they can become dangerous to humanity. So digital citizenship is a kind of way forward to bring awareness among students and educators to use digital technologies appropriately and responsibly. But in classical digital citizenship issues, such as justice, equity, and accessibility, are not addressed. This study explores Jesuit secondary school teachers opinions on incorporating critical consciousness into digital citizenship and how that affects students attitudes towards building an equitable digital society. The researcher highlights the need to integrate critical consciousness into digital citizenship education through qualitative research study. 2024 Informa UK Limited, trading as Taylor & Francis Group.
Creator
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Dass A.M.; Pramod Kumar M.P.M.
Source
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International Studies in Catholic Education
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Routledge
Date
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2024-01-01
Identifier
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<a href="https://doi.org/10.1080/19422539.2024.2386236" target="_blank" rel="noreferrer noopener">https://doi.org/10.1080/19422539.2024.2386236</a>
<br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85200986669&doi=10.1080%2F19422539.2024.2386236&partnerID=40&md5=66afbecbf9b727c9219e396da9b4af7f" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85200986669&doi=10.1080%2f19422539.2024.2386236&partnerID=40&md5=66afbecbf9b727c9219e396da9b4af7f</a>
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Restricted Access
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ISSN: 19422539
Format
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Online
Language
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English
Type
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Article
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Dass A.M., School of Education, Christ University, Bengaluru, India; Pramod Kumar M.P.M., School of Education, Christ University, Bengaluru, India
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Dublin Core
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Title
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Articles
Article
Faculty Publications -Articles
Dublin Core
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Title
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Jet-driven AGN feedback on molecular gas and low star-formation efficiency in a massive local spiral galaxy with a bright X-ray halo
Subject
The topic of the resource
Galaxies: active; Galaxies: evolution; Galaxies: jets; Galaxies: kinematics and dynamics; Galaxies: spiral; Galaxies: star formation
Description
An account of the resource
It has long been suspected that powerful radio sources may lower the efficiency with which stars form from the molecular gas in their host galaxy, however so far, alternative mechanisms, in particular related to the stellar mass distribution in the massive bulges of their host galaxies, have not been ruled out. We present new, arcsecond-resolution Atacama Large Millimeter Array (ALMA) CO(1-0) interferometry, which probes the spatially resolved, cold molecular gas in the nearby (z=0.08), massive (Mstellar= 4 1011 M?), isolated, late-type spiral galaxy 2MASSX J23453269-044925, which is outstanding for having two pairs of powerful, giant radio jets, and a bright X-ray halo of hot circumgalactic gas. The molecular gas is in a massive (Mgas=2.0 1010 M?), 24 kpc wide, rapidly rotating ring, which is associated with the inner stellar disk. Broad (FWHM=70-180 km s-1) emission lines with complex profiles associated with the radio source are seen over large regions in the ring, indicating gas velocities that are high enough to keep the otherwise marginally Toomre-stable gas from fragmenting into gravitationally bound, star-forming clouds. About 1-2% of the jet kinetic energy is required to power these motions. Resolved star-formation rate surface densities derived from Galaxy Evolution Explorer and Wide-Field Infrared Survey Explorer fall by factors of 30-70 short of expectations from the standard Kennicutt-Schmidt law of star-forming galaxies, and near gas-rich early-type galaxies with signatures of star formation that are lowered by jet feedback. We argue that radio Active Galactic Nucleus (AGN) feedback is the only plausible mechanism to explain the low star-formation rates in this galaxy. Previous authors have already noted that the X-ray halo of J2345-0449 implies a baryon fraction that is close to the cosmic average, which is very high for a galaxy. We contrast this finding with other, equally massive, and equally baryon-rich spiral galaxies without prominent radio sources. Most of the baryons in these galaxies are in stars, not in the halos. We also discuss the implications of our results for our general understanding of AGN feedback in massive galaxies. N. P. H. Nesvadba et al. 2021.
Creator
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Nesvadba N.P.H.; Wagner A.Y.; Mukherjee D.; Mandal A.; Janssen R.M.J.; Zovaro H.; Neumayer N.; Bagchi J.; Bicknell G.
Source
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Astronomy and Astrophysics, Vol-654
Publisher
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EDP Sciences
Date
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2021-01-01
Identifier
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<a href="https://doi.org/10.1051/0004-6361/202140544" target="_blank" rel="noreferrer noopener">https://doi.org/10.1051/0004-6361/202140544</a>
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All Open Access; Green Open Access; Hybrid Gold Open Access
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ISSN: 46361; CODEN: AAEJA
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Online
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English
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Article
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Nesvadba N.P.H., Universitde la Ce d'Azur, Observatoire de la Ce d'Azur, CNRS, Laboratoire Lagrange, Bd de l'Observatoire, CS 34229, Nice Cedex 4, 06304, France; Wagner A.Y., University of Tsukuba, Center for Computational Sciences, Tennodai 1-1-1,Ibaraki, Tsukuba, 305-0006, Japan; Mukherjee D., Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Pune, 411007, India; Mandal A., Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Pune, 411007, India; Janssen R.M.J., Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, 91109, CA, United States, Department of Astronomy, California Institute of Technology, 1216 E California Blvd., Pasadena, 91125, CA, United States; Zovaro H., Research School of Astronomy and Astrophysics, The Australian National University, Canberra, 2611, ACT, Australia; Neumayer N., Max-Planck-Institut f Astronomie, Kigstuhl 17, Heidelberg, 69117, Germany; Bagchi J., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Road, Bengaluru, 560029, India; Bicknell G., Research School of Astronomy and Astrophysics, The Australian National University, Canberra, 2611, ACT, Australia