Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"Flukes"”.
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Comparative and population genomic analyses of the parasitic blood flukes
The etiological agents of schistosomiasis are snail-vectored, waterborne, parasitic trematodes of the genus Schistosoma. Schistosomes are considered a considerable public health concern responsible for infecting over 236 million people across 78 endemic nations. It is especially common among …
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Studies on the interactions between larval stages of digenetic flukes and their molluscan hosts
Snails of the species Thais (Nucella) lapillus (L) were collected from Scarborough South Bay, and Robin Hoods Bay, North Yorkshire. The presence of the rediae of Parorchia acanthus NICOLL (Digenea: PHILOPHTHALMIDAE) in T.lapillus individuals was previously associated with abnormal shell growth by …
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Embryonation and efficacy of treatments on monogenean gill flukes infecting silver kob (Argyrosomus inodorus)
… afflicted by disease caused by monogenean flukes, resulting in significant production losses. In vitro trials were conducted to identify an effective treatment against the monogenean flukes Calceostoma sp. and Diplectanum sp. infecting the silver kob Argyrosomus inodorus. Treatments …
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Phylogenetic studies on the blood-inhabiting trematodes
… and the descriptions of the other blood flukes up until the present time, a vast amount of material has been put forth in publications having a more or less limited circulation. The writer has, therefore, attempted to assemble descriptions of all the genera and species, hoping that this …
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The cellular and molecular origins of extracellular vesicles secreted by <i>Fasciola hepatica</i>
… used to identify their cellular origins in adult flukes. This analysis revealed multiple sites of FhEV production (the parenchyma, tegument, gastrodermal cells and protonephridial system) and indicated that further subtypes of FhEVs exist within the previously characterised 15K and 120K EV …
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Comparison of host-parasite relationships of Fasciola gigantica infection in cattle (Bos indicus) and swamp buffaloes (Bubalus bubalis)
… higher in buffaloes with high fluke burdens (>70 flukes) than those with no flukes or with medium fluke burden (21-70 flukes) (P<0.05). Significantly higher PCV value was also observed in buffaloes with high fluke burdens compared with those with low or medium worm loads (P<0.05). Haemoglobin …
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Exploring the interactions between schistosome eggs and the human host
… flatworms are a genus of parasitic blood flukes that inhabit tropical and developing communities throughout Africa, Asia and South America. Infection with Schistosoma flukes causes the disease schistosomiasis, which results in approximately 200,000 deaths per year in Sub-Saharan Africa …
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The development of the rumen fluke, Calicophoron daubneyi, within the mammalian host
… the newly-excysted juveniles (NEJ) and immature flukes that reside in the duodenum and the newly-migrated and adult flukes that are found in the rumen. Firstly, whole mount preparations and histological examination of these developmental stages revealed the gross structure and timing of …
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Of the interactions between eye fluke parasites and salmonid fishes
… differences in fish resistance against eye flukes in salmonid fishes. The heritability of resistance was estimated to be of moderate degree (h2 = 0.25–0.35) in farmed rainbow trout. There was genetic variation also in fish tolerance against eye flukes, contradicting the hypothesis that …
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In Situ Diagnostics for Multiple Allergens in Food
… analysed by varying the space between two anchor flukes in a series of tests. The anchor shape had minimal effect on deep and intermediate soil failure mechanisms. For shallow failure mechanisms, increasing the spacing between the flukes resulted in an increased normalised anchor capacity. Due to …
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Plate anchors for offshore foundations in sand and clay
… analysed by varying the space between two anchor flukes in a series of tests. The anchor shape had minimal effect on deep and intermediate soil failure mechanisms. For shallow failure mechanisms, increasing the spacing between the flukes resulted in an increased normalised anchor capacity. Due to …
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Interrelationships Among Monorchiid Trematodes with Special Emphasis on Some Northwestern Atlantic Genera
… Odhner, 1911 is a cosmopolitan family of flukes (Trematoda: Digenea) comprising species that parasitize the digestive tract of estuarine and marine fishes as adults. Compared with other oceans, recent morphological or molecular taxonomic work conducted on monorchiid species from the …
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On very thin ice: Impostor phenomenon and careers of women graduate students
… second-guessing merits, attributing success to flukes). Findings showed that impostor feelings were associated with psychological constructs (i.e., perfectionism, core self-evaluations, and symptoms of anxiety and depression) in hypothesized directions. Women described multiple ways their …
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Studies on the life-cycle of the digenetic trematode Rhipidocotyle campanula (Dujardin, 1845) (Gasterostomata : bucephalidae) with particular reference to the larval stages
… takes place only in cysts 80-90 days old. Adult flukes were recovered from the posterior intestine and rectum of the perch (Perca fluviatilis) six weeks after feeding fully developed metacercariae. Spermatogenesis and oogenesis were studied in the adults until egg formation. Miracidial …
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Functional Studies of Stem Cells in the Parasitic Flatworm Schistosoma mansoni
… with other parasitic flatworms such as liver flukes and tapeworms. Namely, they are characterized by a syncytial "skin" known as the tegument that is critical for their survival within their hosts, they possess somatic stem cells referred to as neoblasts, and they are incredibly successful …
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Synthesis, structure-activity relationship and solubility improvement studies of potential antimalarial and antischistosomal pyrido[1,2-a]benzimidazoles
… no activity towards young stages of the liver flukes. These challenges collectively provide a justification for stepping up drug discovery and development efforts aimed at identifying novel, safe and efficacious antimalarial and antischistosomal agents. Whereas, the pyrido[1,2-a]benzimidazole …
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Piperazine-based pyrido[1,2-a]benzimidazoles: synthesis and pharmacological evaluation as potential antimalarial and antischistosomal agents
… by Plasmodium parasites and Schistosoma blood flukes in malaria and schistosomiasis, respectively, suggest an opportunity for the repositioning of antimalarial scaffolds as antischistosomal agents. Pyrido[1,2-a]benzimidazoles (PBIs) demonstrate various biological and pharmacological properties …
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Lifestyle and Intestinal Parasite Infection in Northern Europe: A Study Comparing Clergy and the General Population of Cambridge and Belgium in 12th-18th Centuries
… tapeworm, pork tapeworm, fish tapeworm, liver flukes, and protozoa that cause diarrhoea and dysentery. Some types of parasitic worm are contracted by the contamination of food and drink by faeces, but other parasites are caught by eating raw, smoked, pickled or salted meats or fish. People with …
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A Histopathological Review of Immune Response in Largemouth Bass to Parasitic Infections of Soft Tissues
<p>The immune response can serve as a key indicator of a fish’s overall health and the effect stressors have on the health of the fish. Anthropogenic factors can stress a fish’s immune system and inhibit immune responses. This study investigated the response of eosinophilic cells and macrophage …
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