Literatura científica selecionada sobre o tema "Xenorhabdus"

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Artigos de revistas sobre o assunto "Xenorhabdus"

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Rahoo, Ali Murad, Rehana Kanwal Rahoo, Muhammad Saeed, Muhammad Burhan, and Nusrat Keerio. "MOLECULAR IDENTIFICATION AND GROWTH OF XENORHABDUS AND PHOTORHABDUS SYMBIONTS OF ENTOMOPATHOGENIC NEMATODES." Plant Protection 6, no. 2 (2022): 91–100. http://dx.doi.org/10.33804/pp.006.02.4211.

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From the characterisation, the partial 16 S gene sequences obtained for the two bacteria were subjected to blast-bootstrap analysis to obtain the phylogenetic tree. In assessing the similarity of Xenorhabdus bovienii with five other Xenorhabdus spp., it was found to be 96% similar to X. nematophila and X. japonica with Accession Numbers D78006 and NR027194 respectively. The X. bovienii was closer to X. beddingii 95% and X. kazodoii and 97% similarity to X. poinarii. From the phylogenetic tree, the two species of bacteria were found to belong to the genera Xenorhabadus and Photorhabdus. The two
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Tailliez, Patrick, Sylvie Pagès, Nadège Ginibre, and Noël Boemare. "New insight into diversity in the genus Xenorhabdus, including the description of ten novel species." International Journal of Systematic and Evolutionary Microbiology 56, no. 12 (2006): 2805–18. http://dx.doi.org/10.1099/ijs.0.64287-0.

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We investigated the diversity of a collection of 76 Xenorhabdus strains, isolated from at least 27 species of Steinernema nematodes and collected in 32 countries, using three complementary approaches: 16S rRNA gene sequencing, molecular typing and phenotypic characterization. The 16S rRNA gene sequences of the Xenorhabdus strains were highly conserved (similarity coefficient >95 %), suggesting that the common ancestor of the genus probably emerged between 250 and 500 million years ago. Based on comparisons of the 16S rRNA gene sequences, we identified 13 groups and seven unique sequences. T
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Abd-Elgawad, Mahfouz M. M. "Xenorhabdus spp.: An Overview of the Useful Facets of Mutualistic Bacteria of Entomopathogenic Nematodes." Life 12, no. 9 (2022): 1360. http://dx.doi.org/10.3390/life12091360.

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Mounting concern over the misuse of chemical pesticides has sparked broad interest for safe and effective alternatives to control plant pests and pathogens. Xenorhabdus bacteria, as pesticidal symbionts of the entomopathogenic nematodes Steinernema species, can contribute to this solution with a treasure trove of insecticidal compounds and an ability to suppress a variety of plant pathogens. As many challenges face sound exploitation of plant–phytonematode interactions, a full useful spectrum of such interactions should address nematicidal activity of Xenorhabdus. Steinernema–Xenorhabdus compl
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Kuwata, Ryusei, Li-hong Qiu, Wen Wang, et al. "Xenorhabdus ishibashii sp. nov., isolated from the entomopathogenic nematode Steinernema aciari." International Journal of Systematic and Evolutionary Microbiology 63, Pt_5 (2013): 1690–95. http://dx.doi.org/10.1099/ijs.0.041145-0.

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Gram-negative bacteria of the genus Xenorhabdus exhibit a mutualistic association with steinernematid entomopathogenic nematodes and a pathogenic relationship with insects. Here we describe two isolates of the entomopathogenic nematode Steinernema aciari collected from China and Japan. 16S rRNA gene sequence similarity and phylogenetic analysis indicated that the isolates obtained from S. aciari belonged to the genus Xenorhabdus . Multilocus sequence analysis based on five universal protein-coding gene sequences revealed that the isolates were closely related to Xenorhabdus ehlersii DSM 16337T
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GREWAL, P. S., M. MATSUURA, and V. CONVERSE. "Mechanisms of specificity of association between the nematode Steinernema scapterisci and its symbiotic bacterium." Parasitology 114, no. 5 (1997): 483–88. http://dx.doi.org/10.1017/s0031182096008669.

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We suggest a new mechanism for the maintenance of specificity of the association between the entomopathogenic nematode Steinernema scapterisci and its symbiotic bacteria. We evaluated the development and reproduction of infective and non-infective juvenile S. scapterisci in monoxenic combinations with its symbiotic bacteria, Xenorhabdus sp. ‘S’ and with the bacterial symbiont of Steinernema carpocapsae and Steinernema riobravis. Although development of non-infective stages occurred on all Xenorhabdus spp., the development of infective juveniles to the 4th stage (‘dauer’ recovery) was significa
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Lengyel, Katalin, Elke Lang, András Fodor, Emilia Szállás, Peter Schumann, and Erko Stackebrandt. "Description of four novel species of Xenorhabdus, family Enterobacteriaceae: Xenorhabdus budapestensis sp. nov., Xenorhabdus ehlersii sp. nov., Xenorhabdus innexi sp. nov., and Xenorhabdus szentirmaii sp. nov." Systematic and Applied Microbiology 28, no. 2 (2005): 115–22. http://dx.doi.org/10.1016/j.syapm.2004.10.004.

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Harahap, Mardianto, and Didik Sulistyanto. "Karakteristik morfologi dan fisiologi beberapa isolat lokal bakteri simbiose nematoda entomopatogen kompleks serta uji virulensi pada larva Plutella xylostella." Jurnal Entomologi Indonesia 1, no. 1 (2017): 41. http://dx.doi.org/10.5994/jei.1.1.41.

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Local isolates of entomopathogenic nematodes are symbiotically associated with bacteria of the genus Xenorhabdus or Photorhabdus. Symbiont bacteria isolated from local isolates of entomopathogenic nematode (Pujon, Cemoro Lawang and X. nematophilus) were identical with Xenorhabdus spp and isolate of Ngadas was identical with Photorhabdus luminescens. Some isolates, such as Xenorhabdus (isolate of Pujon) and P. luminescens (isolate of Ngadas) has a high virulence when the bacteria was injected into insect haemocoel. High virulence was indicated by Xenorhabdus nematophilus when it was applied ora
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Lengyel, Katalina, Elke Lang, Andras Fodor, Emilia Szallas, Peter Schumann, and Erko Stackebrandt. "Erratum to “Description of four novel species of Xenorhabdus, family Enterobacteriaceae: Xenorhabdus budapestensis sp. nov., Xenorhabdus ehlersii sp. nov., Xenorhabdus innexi sp. nov., and Xenorhabdus szentirmaii sp. nov.”." Systematic and Applied Microbiology 30, no. 1 (2007): 83. http://dx.doi.org/10.1016/j.syapm.2006.11.003.

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Cao, Li, Xuehong Qiu, Xiaofen Liu, Xiuling Liu, and Richou Han. "Nutrient potential of various Xenorhabdus and Photorhabdus bacteria for a free-living nematode Panagrellus redivivus." Nematology 10, no. 1 (2008): 79–85. http://dx.doi.org/10.1163/156854108783360104.

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Abstract Xenorhabdus and Photorhabdus bacteria are symbionts of entomopathogenic nematodes of the genera Steinernema and Heterorhabditis, respectively. To determine the nutrient potential of these bacteria for a free-living nematode, Panagrellus redivivus, a promising food source for first-feeding fish and crustacean, sterile first-stage juveniles (J1) of P. redivivus were fed on various isolates of Xenorhabdus and Photorhabdus bacteria in liquid cultures. Most of the tested bacterial isolates did not support the growth of P. redivivus. However, four of the Xenorhabdus isolates (X. nematophila
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Eidt, D. C., and J. G. Stewart. "EFFECT ON GROWTH AND ROOT NODULATION OF CLOVERS, TRIFOLIUM SPP., BY GALLERIA MELLONELLA (L.) (LEPIDOPTERA: PYRALIDAE) INFECTED WITH STEINERNEMA CARPOCAPSAE (WEISER) (RHABDITA: STEINERNEMATIDAE) AND ITS SYMBIONT, XENORHABDUS NEMATOPHILUS POINAR AND THOMAS." Canadian Entomologist 129, no. 2 (1997): 205–10. http://dx.doi.org/10.4039/ent129205-2.

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AbstractRed and white clovers, Trifolium spp., were grown in nitrogen-poor soil containing cadavers of larval Galleria mellonella (L.) that were infected with Steinernema carpocapsae (Weiser) and its symbiont Xenorhabdus nematophilus Poinar and Thomas. Growth and root nodulation were not affected by the nematode treatment, leading us to conclude that they would not be impaired through the action of antimicrobial agents produced by Xenorhabdus spp. present in soils because of Xenorhabdus-infected insect cadavers.
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Teses / dissertações sobre o assunto "Xenorhabdus"

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Xu, Chuanbin. "The stability and cytotoxic properties of xenorxides and xenorhabdins, secondary metabolites of the entomopathogenic nematode symbiont, Xenorhabdus bovienii, Enterobacteriaceae." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37671.pdf.

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Pinyon, Rebecca A. "Isolation and characterisation of novel non-ribosomal peptide synthetase genes from the entomopathogenic Xenorhabdus bovienii T228." Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09php659.pdf.

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Sirs, Heidi Louise. "Molecular and biological studies on nematicidal strains of Xenorhabdus species." Thesis, University of Liverpool, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409877.

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Baxter, Laura April. "The identification and characterisation of insecticidal toxins from Xenorhabdus species." Thesis, University of Liverpool, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411586.

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Cambon, Marine. "Heterogeneity within infections : the case of the vector-borne insect pathogen, Xenorhabdus nematophila." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30308.

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De nombreuses études ont jusqu'ici considéré les infections comme étant des interactions deux-à-deux, entre un hôte et un pathogène, minimisant ainsi la complexité du processus infectieux. En effet, les infections sont souvent très hétérogènes, menant à des interactions plus complexes. Au cours de ce travail, nous cherchons à répondre à deux questions: (i) La transmission d'un pathogène peut-elle être impactée lorsque de l'hétérogénéité phénotypique apparaît dans sa population au cours de l'infection ? (ii) Comment les pathogènes interagissent-ils avec la communauté bactérienne généralement as
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Roder, Alexandra Catherine, and Alexandra Catherine Roder. "Influence of Xenorhabdus Symbionts on Gonad Development and Pheromone Production of First-Generation Adult Steinernema Nematodes (Nematoda: Steinernematidae)." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/626344.

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Entomopathogenic Steinernema nematodes (Nematoda: Steinernematidae) have a mutualistic relationship with Xenorhabdus bacteria (Gamma-Proteobacteria Enterobacteriaceae). The two partners form an insecticidal alliance that is successful in killing a wide range of insects. A few studies have shown that Steinernema IJs have an enhanced virulence and reproductive fitness when they associate with their cognate symbionts. However, there are unanswered questions regarding the physiological interactions that govern and perpetuate the interactions between different nematode developmental stages and t
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Sartori, Thaís. "Avaliação da atividade leishmanicida de metabólicos de bactérias entomopatogênicas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/131895.

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A leishmaniose, doença parasitária vetoriada causada por protozoários do gênero Leishmania, é uma das principais doenças tropicais negligenciadas do mundo. Os medicamentos atualmente disponíveis para o tratamento das leishmanioses são insatisfatórios, principalmente devido à baixa efetividade dos mesmos, surgimento de resistência do parasito ou reações adversas graves apresentadas pelos pacientes. Nas últimas décadas, tem havido um interesse renovado em produtos naturais derivados de micro-organismos como fonte para a concepção de novas drogas. As bactérias entomopatogênicas Xenorhabdus nemato
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He, Hongjun. "Thermal adaptation in Xenorhabdus spp., bacterial symbionts of entomopathogenic nematodes, Steinernema spp." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0014/MQ42392.pdf.

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Lee, Ming-Min. "A Phylogenetic Hypothesis on the Evolution and Interactions of Xenorhabdus Spp. (Gamma-Proteobacteria) and Their Steinernema Hosts (Nematoda: Steinernematidae)." Thesis, The University of Arizona, 2009. http://hdl.handle.net/10150/193414.

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Nematodes in the genus Steinernema (Nematoda: Steinernematidae) and their associated bacteria Xenorhabdus spp. (Gamma-Proteobacteria) are an emergent model of terrestrial animal-microbe symbiosis. Although interest in this association initially arose out of their potential as biocontrol agents against insect pests (Tanada and Kaya, 1993), this mutualistic partnership is currently viewed more broadly under the umbrella of basic sciences to inform ecology, evolution, biochemistry, molecular, among other disciplines (Burnell and Stock, 2000; Forst and Clarke, 2002).Despite advances in the discove
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Hu, Kaiji. "Nematicidal properties of Xenorhabdus spp. and Photorhabdus spp., bacterial symbionts of entomopathogenic nematodes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0013/NQ52710.pdf.

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Livros sobre o assunto "Xenorhabdus"

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Smith, Kirk A. Entomopathogenic nematode bibliography: Heterorhabditid and Steinernematid nematodes. Arkansas Agricultural Experiment Station, 1992.

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Xu, Jimin. Development of genetic exchange systems for Xenorhabdus. 1989.

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Krasomil-Osterfeld, Karina. Charakterisierung von Phasenvarianten des symbiotischen Begleitbakteriums Xenorhabdus luminescens (XSH1) und ihr Einfluss auf die Vermehrung des entomopathogenen Nematoden Heterorhabditis sp. (HSH1) in monoxenischer Flüssigkultur. 1993.

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Capítulos de livros sobre o assunto "Xenorhabdus"

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Yin, Jia, Hailong Wang, Ruijuan Li, et al. "A Practical Guide to in and Xenorhabdus." In Current Topics in Microbiology and Immunology. Springer International Publishing, 2016. http://dx.doi.org/10.1007/82_2016_57.

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Givaudan, Alain, and Anne Lanois. "Flagellar Regulation and Virulence in the Entomopathogenic Bacteria—Xenorhabdus nematophila and Photorhabdus luminescens." In Current Topics in Microbiology and Immunology. Springer International Publishing, 2016. http://dx.doi.org/10.1007/82_2016_53.

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Hazir, Selcuk, and Helge B. Bode. "Xenorhabdus and Photorhabdus Bacterial Metabolites as Tools in Biocontrol." In Entomopathogenic Nematodes as Biological Control Agents. CABI, 2024. http://dx.doi.org/10.1079/9781800620322.0009.

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Kotova, Zinaida, Leonid Danilov, and Tatiana Danilova. "Biological Protection of Salanum Tuberosum L from Pathogens Using Symbiotic Bacteria Xenorhabdus Bovienii Entomopathogenic Nematodes." In Smart Innovation, Systems and Technologies. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4410-7_21.

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Xi, Lei, Ki-Woong Cho, and Shiao-Chun Tu. "Xenorhabdus luminescens LUCIFERASE: CLONING, SEQUENCING, AND OVEREXPRESSION OF THE ENCODING GENES AND SUBSTRATE INHIBITION OF THE ENZYME." In Flavins and Flavoproteins 1990, edited by B. Curti, S. Ronchi, and G. Zanetti. De Gruyter, 1991. http://dx.doi.org/10.1515/9783110855425-051.

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"Xenorhabdus." In Encyclopedia of Genetics, Genomics, Proteomics and Informatics. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6754-9_18245.

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Vicente-Díez, Ignacio, Alicia Pou, and Raquel Campos-Herrera. "Xenorhabdus- and Photorhabdus-based products." In Development and Commercialization of Biopesticides. Elsevier, 2023. http://dx.doi.org/10.1016/b978-0-323-95290-3.00012-1.

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Nealson, Kenneth H., Thomas M. Schmidt, and Bruce Bleakley. "Physiology and Biochemistry of Xenorhabdus." In Entomopathogenic Nematodes in Biological Control. CRC Press, 2018. http://dx.doi.org/10.1201/9781351071741-19.

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Frackman, Susan, and Kenneth H. Nealson. "The Molecular Genetics of Xenorhabdus." In Entomopathogenic Nematodes in Biological Control. CRC Press, 2018. http://dx.doi.org/10.1201/9781351071741-20.

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Akhurst, R. J., and N. E. Boemare. "Biology and Taxonomy of Xenorhabdus." In Entomopathogenic Nematodes in Biological Control. CRC Press, 2018. http://dx.doi.org/10.1201/9781351071741-5.

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Trabalhos de conferências sobre o assunto "Xenorhabdus"

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Zeynalov, A. S., L. G. Danilov, T. N. Churilina, D. S. Orel, and M. V. Vinokur. "PARASITIC NEMATODES, BACTERIA, AND NEMATODE-BACTERIAL ASSOCIATIONS IN SUPPRESSING THE DEVELOPMENT OF SECRETIVE PHYTOPHAGANS OF FRUIT AND BERRY CROPS." In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2025. https://doi.org/10.31016/978-5-6053355-1-1.2025.26.111-115.

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For the first time in the Russian Federation, highly effective biological methods have been developed to suppress caterpillars and pupae of the apple worm (Cydia pomonella L.), larvae of the currant borer beetle (Agrilus ribesi Shafer), and larvae of root weevils (Otiorhynchus sp.). Entomopathogenic nematodes Steinernema carpocapsae (Weiser) and Steinernema feltiae (Filipjev), autoclaved and live cultures of entomopathogenic bacteria Xenorhabdus bovienii and Xenorhabdus nematophila, together with and without the nematodes were used as biological agents. Bioagents were applied to different subs
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Chikezie I., Owuama. "Effect of Growth Media on Phase Variation in Xenorhabdus bovienii T228." In Annual International Conference on Advances in Biotechnology. Global Science & Technology Forum (GSTF), 2013. http://dx.doi.org/10.5176/2251-2489_biotech13.82.

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Kapur, Arvinder K., Mayur Kajla, Susan Paskewitz, Pooja Mehta, Geeta Mehta, and Manish S. Patankar. "Abstract NT-096: FABCLAVINE, A SECONDARY METABOLITE FROM XENORHABDUS BUDAPESTENSIS AS THERAPY AGAINST OVARIAN CANCER." In Abstracts: 12th Biennial Ovarian Cancer Research Symposium; September 13-15, 2018; Seattle, Washington. American Association for Cancer Research, 2019. http://dx.doi.org/10.1158/1557-3265.ovcasymp18-nt-096.

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Palma, Leopoldo, Primitivo Caballero, Colin Berry, Laureano Frizzo, and Eleodoro Del Valle. "The insecticidal-toxin repertory of 14 <em>Xenorhabdus</em> strains isolated from Argentina." In 1st International Electronic Conference on Toxins. MDPI, 2021. http://dx.doi.org/10.3390/iect2021-09140.

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