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 49 for “"Mollusc"”.
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Peripheral Processing in the Mollusc and the Role of Feedback
Thus, we conclude that the periphery does not encode hunger state or learned associations in isolation, however it is very sensitive to serotonin feedback, likely from multiple systems controlling appetitive and aversive response states.
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The primary structure of histone H2B from the mollusc Patella granatina
Histones H2B were isolated from the gonads of a mollusc (Patella granatina) and from chicken (Gallus domesticus), crocodile (Crocodylus niloticus) and amphibian (Xenopus laevis) erythrocytes. The H2B's were purified by ion-exchange and gel exclusion chromatography. The complete primary structure of …
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A holocene sea surface temperature record in mollusc shells from the South African coast
… Agulhas Bank of South Africa, using marine mollusc shells preserved in archaeological middens. Two independent palaeothermometers were employed: the traditional oxygen isotope technique and a new, alternative technique based on temperature-dependent changes in structure and mineralogy of the …
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Characterization of the major extrapallial fluid protein of the mollusc, Mytilus edulis: Implications for function
… component of the extrapallial (EP) fluid of the mollusc Mytilus edulis, named the EP protein, has been previously isolated and partially characterized. It has been proposed to play an important role in shell mineralization because of its intriguing property of Ca2+ -binding induced …
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Development and application of the mollusc Arctica islandica asa paleoceanographic tool for the North Atlantic ocean
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1995.
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Development and application of the mollusc Arctica islandica as a paleoceanographic tool for the North Atlantic ocean
… this thesis, the long-lived (+100 years) boreal mollusc (Bivalvia) Arctica islandica is shown to be practical for this purpose in the northern North Atlantic Ocean. The evidence, compiled here, demonstrates that the carbonate shell of this species faithfully records the ambient dissolved …
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Environmental and climatic aspects of the early to mid Holocene calcareous tufa and land mollusc fauna in southern Sweden
… of Skåne. The biostratigraphical methods include mollusc, pollen, plant macrofossil and insect analysis. These were supplemented by lithological and chemical analyses. An additional aim of the study was to provide new information on the postglacial immigration of terrestrial molluscs into Sweden. …
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Identification and characterisation of specific allergens of Abalone (haliotis midae; mollusca) and other seafood species
… available from published studies, especially on mollusc allergens, more detailed characterisation of the major allergens from different shellfish and fish is necessary to accurately predict cross-allergenicity. The need for a detailed characterisation of the immune response and the allergens in …
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A Comparison of Light-Activated Enzymes From Vertebrate and Invertebrate Photoreceptors
… of phosphodiesterase in neurons of the mollusc Pleurobranchaea.
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Contribuição ao conhecimento da taxonomia em Thais (Stramonita) haemastona (Linnaeus, 1767) (Mollusca, Gastropoda, Muricidae)
The gastropod mollusc Thais haemastoma (Linnaeus, 1767) is characterized, including its taxonomic positioning up to the subclass level. Descriptions of the shell, operculum and radula are included, as well as of some soft parts which represents taxonomically important characters. Data related to …
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Integrated strategies for investigating endocrine mechanisms in Biomphalaria Glabrata as a test organism for androgenic chemical testing
… genes, proteins and processes in gastropod molluscs and humans underlie the response of male reproductive organs to androgenic chemicals. Using a freshwater pulmonate snail, Biomphalaria glabrata, physiological effects of two steroid androgens on the development of mollusc secondary sexual …
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Patterning the Mud Snail Ilyanassa obsoleta: The Role of Cell Signaling and Asymmetric Protein Localization
… ciliary bands are conserved among annelid and mollusc larvae. Interestingly, the metatroch is derived from third quartet derivatives in the annelid Polygordius and from second quartet derivatives in the mollusc Crepidula. I provide evidence that the metatroch is derived from the first quartet …
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Advances in the reconstruction of temperature history, physiology and paleoenvironmental change : evidence from light stable isotope chemistry
… to weekly deposited carbonate from small (~1 cm) mollusc shells. Stable oxygen isotope values from freshwater mollusc shells are predictably related to the local environment of growth using previously published temperature-fractionation relationships, providing a paleoclimate record of temperature …
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Off-Line CE/MALDI MS: Sampling and Deposition Techniques to Incorporate Complementary Analyses for Cellular Assays
… of tissues and single cells from the marine mollusc, Aplysia californica , assaying neuronal release, analyzing cone snail venoms, and incorporating radionuclide detection with CE/MALDI MS. The application of the CE/MS technique toward the analysis of these samples shows that this method is …
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Towards low dose retrospective dosimetry on shelled species
… for low dose studies, shells of crustacean and mollusc species were irradiated to 10 Gy using a 137Cs source. Reference dosimetry was performed with alanine powder using a specifically developed calibration curve. Characteristic Mn2+ signals were present in the EPR spectra of all studied …
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The cyclic AMP-activated sodium current in the molluscan neuron: A kinetic analysis of regulation by diffusion, phosphodiesterase and calcium ion
… of cyclic AMP on pedal neurons of the marine mollusc, Pleurobranchaea californica were studied by intracellular iontophoresis of cyclic AMP under voltage clamp condition. The I$\sb{\rm Na,cAMP}$ response to cyclic AMP injection is resistant to protein kinase inhibitors, and is very likely …
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Diet and trophic relationships of fishes from the nearshore of the Bay of Quinte and Kingston Basin, Lake Ontario
… contents over-estimated the contribution of mollusc-prey to the diet of Round Goby and under-estimated the contribution of soft-bodied prey. In Chapter 3, I investigated differences in food web structure in these two habitats, and observed a general increase in trophic positions in the …
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