Academic literature on the topic 'Parasites – Immunologie'

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Journal articles on the topic "Parasites – Immunologie"

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Greenwood, B. M. "Parasite Immunology and the clinical immunologist." Parasite Immunology 23, no. 10 (2001): 517. http://dx.doi.org/10.1046/j.1365-3024.2001.00413.x.

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POULIN, R. "Relative infection levels and taxonomic distances among the host species used by a parasite: insights into parasite specialization." Parasitology 130, no. 1 (2004): 109–15. http://dx.doi.org/10.1017/s0031182004006304.

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Parasites often exploit more than one host species at any stage in their life-cycle, but the extent to which these host species are used varies greatly. Parasites typically achieve their highest prevalence, intensity and/or abundance in one host species (the principal host), whereas infection levels in auxiliary hosts range from relatively high to very low. The present study examines what influences the distribution of parasite individuals among their different host species, using metazoan parasites that use freshwater fish as their definitive or only host. Specifically, I test the hypothesis
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Kim, Ju Yeong, Myung-Hee Yi, and Tai-Soon Yong. "Allergen-like Molecules from Parasites." Current Protein & Peptide Science 21, no. 2 (2020): 186–202. http://dx.doi.org/10.2174/1389203720666190708154300.

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Parasite infections modulate immunologic responses, and the loss of parasite infections in the last two to three decades might explain the increased prevalence of allergic diseases in developed countries. However, parasites can enhance allergic responses. Parasites contain or release allergen-like molecules that induce the specific immunoglobulin, IgE, and trigger type-2 immune responses. Some parasites and their proteins, such as Anisakis and Echinococcus granulosus allergens, act as typical allergens. A number of IgE-binding proteins of various helminthic parasites are cross-reactive to othe
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Duneau, David, and Dieter Ebert. "The role of moulting in parasite defence." Proceedings of the Royal Society B: Biological Sciences 279, no. 1740 (2012): 3049–54. http://dx.doi.org/10.1098/rspb.2012.0407.

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Parasitic infections consist of a succession of steps during which hosts and parasites interact in specific manners. At each step, hosts can use diverse defence mechanisms to counteract the parasite's attempts to invade and exploit them. Of these steps, the penetration of parasites into the host is a key step for a successful infection and the epithelium is the first line of host defence. The shedding of this protective layer (moulting) is a crucial feature in the life cycle of several invertebrate and vertebrate taxa, and is generally considered to make hosts vulnerable to parasites and preda
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McRobert, Louisa, Peter Preiser, Sarah Sharp, et al. "Distinct Trafficking and Localization of STEVOR Proteins in Three Stages of the Plasmodium falciparum Life Cycle." Infection and Immunity 72, no. 11 (2004): 6597–602. http://dx.doi.org/10.1128/iai.72.11.6597-6602.2004.

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ABSTRACT The genome of Plasmodium falciparum harbors three extensive multigene families, var, rif, and stevor (for subtelomeric variable open reading frame), located mainly in the subtelomeric regions of the parasite's 14 chromosomes. STEVOR variants are known to be expressed in asexual parasites, but no function has as yet been ascribed to this protein family. We have examined the expression of STEVOR proteins in intraerythrocytic sexual stages, gametocytes, and extracellular sporozoites isolated from infected Anopheles mosquitoes. In gametocytes, stevor transcripts appear transiently early i
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KOEHLER, ANSON V., and ROBERT POULIN. "Clone-specific immune reactions in a trematode-crustacean system." Parasitology 139, no. 1 (2011): 128–36. http://dx.doi.org/10.1017/s0031182011001739.

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SUMMARYVariability of immune responses is an essential aspect of ecological immunology, yet how much of this variability is due to differences among parasite genotypes remains unknown. Here, variation in immune response of the crab, Macrophthalmus hirtipes, is examined as a function of experimental exposure to 10 clonal cercarial lineages of the trematode Maritrema novaezealandensis. Our goals were (1) to assess the variability of the host immune reaction elicited by 10 parasite clones, (2) to test if the heterozygosity–fitness correlation, whereby organisms with higher heterozygosities achiev
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Hofmeester, Tim R., Esther J. Bügel, Bob Hendrikx, et al. "Parasite Load and Site-Specific Parasite Pressure as Determinants of Immune Indices in Two Sympatric Rodent Species." Animals 9, no. 12 (2019): 1015. http://dx.doi.org/10.3390/ani9121015.

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Wildlife is exposed to parasites from the environment. This parasite pressure, which differs among areas, likely shapes the immunological strategies of animals. Individuals differ in the number of parasites they encounter and host, and this parasite load also influences the immune system. The relative impact of parasite pressure vs. parasite load on different host species, particularly those implicated as important reservoirs of zoonotic pathogens, is poorly understood. We captured bank voles (Myodes glareolus) and wood mice (Apodemus sylvaticus) at four sites in the Netherlands. We sampled su
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Chen, Xian-Ming, Steven P. O'Hara, Bing Q. Huang, et al. "Apical Organelle Discharge by Cryptosporidium parvum Is Temperature, Cytoskeleton, and Intracellular Calcium Dependent and Required for Host Cell Invasion." Infection and Immunity 72, no. 12 (2004): 6806–16. http://dx.doi.org/10.1128/iai.72.12.6806-6816.2004.

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ABSTRACT The apical organelles in apicomplexan parasites are characteristic secretory vesicles containing complex mixtures of molecules. While apical organelle discharge has been demonstrated to be involved in the cellular invasion of some apicomplexan parasites, including Toxoplasma gondii and Plasmodium spp., the mechanisms of apical organelle discharge by Cryptosporidium parvum sporozoites and its role in host cell invasion are unclear. Here we show that the discharge of C. parvum apical organelles occurs in a temperature-dependent fashion. The inhibition of parasite actin and tubulin polym
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TURNER, A. K., P. M. BELDOMENICO, K. BOWN, et al. "Host–parasite biology in the real world: the field voles of Kielder." Parasitology 141, no. 8 (2014): 997–1017. http://dx.doi.org/10.1017/s0031182014000171.

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SUMMARYResearch on the interactions between the field voles (Microtus agrestis) of Kielder Forest and their natural parasites dates back to the 1930s. These early studies were primarily concerned with understanding how parasites shape the characteristic cyclic population dynamics of their hosts. However, since the early 2000s, research on the Kielder field voles has expanded considerably and the system has now been utilized for the study of host–parasite biology across many levels, including genetics, evolutionary ecology, immunology and epidemiology. The Kielder field voles therefore represen
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Persson, Catrine M., Henrik Lambert, Polya P. Vutova, et al. "Transmission of Toxoplasma gondii from Infected Dendritic Cells to Natural Killer Cells." Infection and Immunity 77, no. 3 (2009): 970–76. http://dx.doi.org/10.1128/iai.00833-08.

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ABSTRACT The obligate intracellular parasite Toxoplasma gondii can actively infect any nucleated cell type, including cells from the immune system. In the present study, we observed that a large number of natural killer (NK) cells were infected by T. gondii early after intraperitoneal inoculation of parasites into C57BL/6 mice. Interestingly, one mechanism of NK cell infection involved NK cell-mediated targeting of infected dendritic cells (DC). Perforin-dependent killing of infected DC led to active egress of infectious parasites that rapidly infected adjacent effector NK cells. Infected NK c
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Dissertations / Theses on the topic "Parasites – Immunologie"

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Renaux, Sophie. "Eimeria du lapin : étude de la migration extra-intestinale du sporozoïte et du développement de l'immunité protectrice." Tours, 2001. http://www.theses.fr/2001TOUR3802.

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Moulia, Catherine. "Modalités des interactions génétiques dans les systèmes hôte-parasite : l'association nématodes (oxyures) : muridés (Mus) en zone d'hybridation hôte." Montpellier 2, 1992. http://www.theses.fr/1992MON20199.

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La dysgenese d'individus au genome recombinant du centre de la zone hybride entre les deux sous-especes de souris domestiques europeennes mus musculus domesticus et m. M. Musculus est etudiee a travers les modalites de resistance/susceptibilite des souris aux nematodes intestinaux (oxyures). Nous verifions et confirmons tout d'abord in situ dans la partie danoise de la zone d'hybridation hote la surinfestation hybride constatee en allemagne par d'autres auteurs; puis, nous montrons par des infestations experimentales controlees de souris de type parental et de souris de la zone hybride danoise
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Cellier, Mathieu. "Elaboration de modèles expérimentaux pour l'étude des stress cellulaires dans les interactions hôte - agent pathogène." Montpellier 2, 1992. http://www.theses.fr/1992MON20205.

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Au cours de processus infectieux, les interactions entre pathogenes intracellulaires et macrophages peuvent declencher des reactions cellulaires apparentees a la reponse au choc thermique. Ces reactions impliquant des proteines specifiques appelees proteines de stress (hsp) ont ete etudiees en utilisant comme modele la lignee leucemique humaine u937 et la bacterie brucella. Nous avons montre qu'un choc thermique sub-lethal permet d'induire la differenciation des cellules myelomonocytaires. Les resultats obtenus suggerent une adaptation fonctionnelle au stress des cellules monocytaires permetta
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Nicolas-Gaulard, Isabelle. "Activité immunomodulatrice d'une protéine, l'hypodermine A, sur les cellules sanguines mononucléées des bovins." Paris 12, 1995. http://www.theses.fr/1995PA120031.

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Parmi les grandes maladies parasitaires qui affectent le cheptel bovin francais, l'hypodermose est responsable de pertes economiques importantes. Le premier stade larvaire de l'insecte responsable de cette parasitose provoque une desorganisation des systemes de defense de l'hote. Ces defaillances sont causees par les secretions larvaires et principalement par l'hypodermine a (ha). L'objet de ces travaux est l'etude de l'activite immunomodulatrice de l'ha sur les cellules sanguines mononucleees des bovins. L'ha inhibe la proliferation des lymphocytes apres stimulation par une lectine mitogene o
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Gay, Frédérick. ""Chimiorésistance de "Plasmodium falciparum" : études sur les populations impaludées et sur les populations plasmodiales"." Montpellier 2, 1992. http://www.theses.fr/1992MON20277.

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La chimioresistance de plasmodium falciparum est etudiee a travers les populations impaludees et au sein des populations plasmodiales. Les trois outils mis en uvre sont l'epidemiologie, la recherche clinique et la recherche fondamentale. Les resultats concernant les populations impaludees portent sur l'evolution des taux d'incidence d'acces palustre chez les voyageurs, l'evolution des taux de prevalence et des niveaux de chimioresistance en afrique de l'ouest et le role de la biodisponibilite dans l'interpretation des echecs therapeutiques. Les travaux portant sur les populations plasmodiales
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Dupas, Stéphane. "La suppression immunitaire dans le système drosophile-parasitoi͏̈de : aspects physiologiques, génétiques et évolutifs." Montpellier 2, 1998. http://www.theses.fr/1998MON20015.

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L'objectif de cette these est d'etudier les variations de l'aptitude immunosuppressive du parasitoide leptopilina boulardi vis-a-vis de son l'hote drosophila melanogaster d'un point de vue physiologique, genetique et evolutif. D'un point de vue physiologique nous avons montre que la reaction de l'hote se mettait en place suite au depot precoce d'une fine couche dense aux electrons a la surface du chorion de l'uf (vraisemblablement de la melanine). De son cote, le parasitoide produit des particules d'allure virale (vlps) responsables de l'immunosuppression et reagissant positivement aux colorat
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Laugier, Claire. "Contribution à l'étude des infestations par des petits strongles chez le cheval en Normandie : données épidemiologiques et aspects lésionnels." Montpellier 2, 2002. http://www.theses.fr/2002MON20125.

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Girod, Anne. "Production de vecteurs rétroviraux par des lignées transcomplémentantes aviaires : augmentation du titre en vecteurs et analyse des formes virales parasites produites." Lyon 1, 1995. http://www.theses.fr/1995LYO10312.

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Le laboratoire a developpe, a partir de retrovirus aviaires de type alsv, des lignees transcomplementantes productrices de particules vecteurs en condition helper-free. Nous avons ici recherche a augmenter le titre en particules produites par ces lignees transcomplementantes et analyse les formes virales recombinantes generees par ces systemes. L'introduction du genome vecteur dans la lignee d'empaquetage par infection plutot que par transfection a permis d'accroitre les titres des stocks de vecteurs retroviraux a des valeurs de 10#6 efu-(expressing forming unit)/ml. En revanche, le systeme pi
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BAHRI, SIHEM, and ADAM MARQUES. "Etude comparee de quelques myxosporidies parasites de poissons mugilidae de mediterranee occidentale : aspects structuraux, biologiques et immunologiques." Montpellier 2, 1997. http://www.theses.fr/1997MON20005.

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Cette etude porte sur les myxosporidies parasites des muges de mediterranee occidentale principalement mugil cephalus et liza ramada provenant du lac ichkeul de tunisie. Les donnees ultrastructurales ont permis de differencier 7 especes du genre myxobolus dont trois nouvelles m. Bizerti n. Sp. ; m. Ichkeulensis n. Sp. ; m. Ramadae n. Sp. , formant des kystes branchiaux. Trois formes viscerales ont ete identifiees: m. Spinacurvatura ; m. Mulleri, localisees dans les vaisseaux mesenteriques et m. Exiguus infestant la paroi intestinale. La 7eme espece recoltee au niveau du tegument a ete rattache
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Ben, Abderrazak Souha. "Variabilité génétique des populations de "Plasmodium falciparum"." Montpellier 2, 1993. http://www.theses.fr/1993MON20013.

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Nous avons analyse par electrophorese d'isoenzymes (7 a 12 loci) le polymorphisme genetique de 5 populations (113 stocks) du plasmodium falciparum, l'agent de la forme la plus severe de paludisme. Les resultats ont ete interpretes en termes de genetique des populations, dans le but d'analyser la structure des populations naturelles de ce parasite. Un fort desequilibre de liaison apparait dans trois des populations etudiees, ainsi que dans l'echantillon global. Une quatrieme population montre egalement des indices de desequilibre, quoique dans une moindre mesure. Une seule serie n'a montre aucu
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Books on the topic "Parasites – Immunologie"

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Wakelin, Derek. Immunity to parasites: How parasitic infections are controlled. 2nd ed. Cambridge University Press, 1996.

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Leopoldina-Meeting Parasitismus, Immunreaktionen bei Parasitosen (1991 Halle an der Saale, Germany). Leopoldina-Meeting Parasitismus, Immunreaktionen bei Parasitosen: Vom 25. bis 26. Oktober 1991 in Halle (Saale). Deutsche Akademie der Naturforscher Leopoldina, 1992.

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Kennedy, M. W., and W. Harnett, eds. Parasitic nematodes: molecular biology, biochemistry and immunology. CABI, 2013. http://dx.doi.org/10.1079/9781845937591.0000.

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Kennedy, M. W., and W. Harnett, eds. Parasitic nematodes: molecular biology, biochemistry and immunology. CABI, 2001. http://dx.doi.org/10.1079/9780851994239.0000.

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Maule, A. G., and N. J. Marks, eds. Parasitic flatworms: molecular biology, biochemistry, immunology and physiology. CABI, 2005. http://dx.doi.org/10.1079/9780851990279.0000.

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Immunity to parasitic infections. John Wiley & Sons, 2012.

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Evolutionary parasitology: The integrated study of infections, immunology, ecology, and genetics. Oxford University Press, 2011.

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Kreier, Julius P. Infection, resistance and immunity. 2nd ed. Taylor & Francis, c2002., 2002.

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Kreier, Julius P. Infection, resistance and immunity. 2nd ed. Taylor & Francis, c2002., 2002.

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F, Mortensen Richard, ed. Infection, resistance, and immunity. Harper & Row, 1990.

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Book chapters on the topic "Parasites – Immunologie"

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Maruyama, Haruhiko, and Yukifumi Nawa. "Immunology of the Infection." In World Class Parasites. Springer US, 2007. http://dx.doi.org/10.1007/978-0-387-71358-8_10.

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Hadley, Terence J., and Louis H. Miller. "Invasion of Erythrocytes by Malaria Parasites: Erythrocyte Ligands and Parasite Receptors." In Chemical Immunology and Allergy. KARGER, 1988. http://dx.doi.org/10.1159/000318613.

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Hu, Guoku, Yaoyu Feng, Steven P. O’Hara, and Xian-Ming Chen. "Immunology of Cryptosporidiosis." In Cryptosporidium: parasite and disease. Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1562-6_10.

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Kaye, Paul M. "The Immunology of Visceral Leishmaniasis: Current Status." In World Class Parasites. Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0955-4_10.

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Owen, Jeb P., and Dana M. Hawley. "Host-Parasite Interactions." In Eco-immunology. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8712-3_4.

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Black, Samuel J., and Cynthia L. Baldwin. "Impact assessment of immunology and immunoparasitology research at ILRAD and ILRI." In The impact of the International Livestock Research Institute. CABI, 2020. http://dx.doi.org/10.1079/9781789241853.0164.

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Abstract This book chapter assesses the research on bovine immunology and immunoparasitology conducted over 42 years, from 1973 to 2015, first at ILRAD (1973-1994) and subsequently at ILRI, which was formed by merging ILRAD and the International Livestock Centre for Africa (ILCA) in 1995. This assessment covers the approaches taken, the performance of research teams, the scientific truths uncovered, the cost-effectiveness of the research undertaken and the practical outcomes achieved, notably, the development of monoclonal antibodies (mAbs) and other tools to better define the bovine immune system. The chapter makes extensive use of citation data along with the personal reflections of scientists who participated in the research and surveys of opinion leaders in the field. The specific scientific goals and achievements of ILRI and its predecessors were as follows: making a substantive contribution to bovine immunology was realistic and has been substantially achieved, measuring the diversity of strains of Theileria parva, Trypanosoma brucei, Trypanosoma vivax and Trypanosoma congolense was realistic and has been substantially achieved, identifying mechanisms of immunity that kill parasites or limit the growth of the above parasites was realistic and has been substantially achieved, and developing an effective subunit vaccine against any of the parasites was an ambitious goal and so far has not been achieved.
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Farrell, Jay P. "The Immunology of Cutaneous Leishmaniasis: Experimental Infections and Human Disease." In World Class Parasites. Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0955-4_11.

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Ackers, J. P. "Immunologic Aspects of Human Trichomoniasis." In Trichomonads Parasitic in Humans. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-3224-7_4.

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Mansfield, John M., and Martin Olivier. "Immune Evasion by Parasites." In Immunology of Infectious Diseases. ASM Press, 2014. http://dx.doi.org/10.1128/9781555817978.ch25.

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Sam-Yellowe, Tobili Y. "Parasite Immunity." In Immunology: Overview and Laboratory Manual. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-64686-8_19.

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