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 43 for “"Octopus"”.
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Interview with an octopus
Octopuses are extraordinary creatures: Despite their numerous biological divergences from humans, they display impressive intelligence. Aquarists and scientists alike have noted instances of octopuses having what appear to be personalities, and some (Roland Anderson and Jennifer Mather) have gone …
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Octopus and dendrimer molecules with silsesquioxane cores
… and controlled molecular formula is increasing. Octopus molecules, or materials with pendent groups from a core, and dendrimer molecules, or materials with a defined pattern of branching from a core are means of obtaining molecules of designed architecture. The work presented here involves the …
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Stable isotope probing of hyperthermophilic filamentous microbial communities in Octopus Spring, Yellowstone National Park
… filamentous streamer communities inhabiting Octopus Spring in Yellowstone National Park. Biomass was removed from the outflow stream and incubated at near-in situ conditions with labeled bicarbonate, formate, or acetate. Lipids from the biomass were extracted and analyzed using gas …
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Characterization of the neuronal circuits and peptides underlying behavior in nudipleuran sea slugs and Octopus rubescens
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Characterization of the neuronal circuits and peptides underlying behavior in nudipleuran sea slugs and Octopus rubescens
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Molecular and morphological factors contributing to the resolution of the taxonomy of Octopus vulgaris Type III
… particularly among invertebrates. The genus Octopus Cuiver, 1797 is considered a ‘catch all' genus due to the lack of morphological traits available to distinguish closely-related species. In recent years, the Octopus vulgaris species complex has received much attention with many cryptic …
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Introducing Godzilla to Marianne Moore's Octopus of Ice at the Intersection of Global Warming, Environmental Philosophy, and Poetry
… a mountain already exists: Marianne Moore’s “An Octopus” (published in 1924), which takes its title from the system of glaciers (or octopus of ice) on Mt. Rainier. For a contemporary poet to think like a mountain, he or she may explore the retreat of glaciers and disappearance of species …
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Rhodopsins as light-detectors: Of visual pigments and human beings
… it by a protonated Schiff base. Titration of the octopus opsin with 11-cis retinal gives an extinction coefficient of 27000 $\pm$ 3000 M$\sp{-1}$ cm$\sp{-1}$ at 475 nm, not very different from retinal's ethanol. The absorption maxima of bovine and octopus artificial pigments, formed by …
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Design of flexible actuators using electro-active polymers and CPG-based control strategies
… robust and agile movements. For example, the octopus arm which is able to grip objects by exerting large forces, moves with a wide range of velocities, and manip-ulates delicate objects, without any rigid skeletal elements. Two key applications of such biomimetic systems are compliant and …
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A Comparison of Light-Activated Enzymes From Vertebrate and Invertebrate Photoreceptors
… (1) the search for light-activated enzymes in octopus photoreceptors analogous to those found in vertebrates' photoreceptors, (2) the question of which photointermediate(s) of photoexcited rhodopsin activate bovine photoreceptor GTPase, and (3) the calcium and pH dependence of phosphodiesterase …
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A Journey to the Late Bronze Age Minoan Underworld: The Reflection of Sunlight on the Sea as an Axis Mundi
… world. In particular, the hybrid form of the octopus-plant motif was analysed: the multivocality of the psychopomp octopus symbol may reveal, in its transformation into a flower and a water pillar, an affinity of shapes and qualities with the glitter path. A solar eschatology can be deduced in …
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Predictive Modelling Approach to Data-Driven Computational Preventive Medicine
… a novel computational data-driven framework, Octopus. Midway through this research, this thesis advances research in preventive medicine and data mining by proposing several new extensions in data preparation and preprocessing. It offers new recommendations for data quality assessment checks, …
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Whale entanglements in South African trap fisheries and their potential mitigation through ropeless fishing techniques
… (WCRL), south coast rock lobster (SCRL) and octopus fisheries are responsible for whale entanglements in trap fishing gear. To better understand the interactions between whale species and fishing gear, a study was conducted in which whale entanglement and fishing effort data were analysed. …
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Convergent cognitive evolution: what can be learnt from comparisons with corvids and cephalopods?
… others have suggested that coleoid cephalopods (octopus, cuttlefish, squid) may have developed complex cognition convergently with large-brained vertebrates but current evidence is not sufficient to fully evaluate these propositions. The aim of my thesis is to gain further insight into these …
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Learning-based control of a cyberoctopus
Inspired by the remarkable capabilities of octopuses, my work focuses on designing control strategies for a simulated soft-bodied octopus-like robot, the CyberOctopus. The continuous deformation and intricate mechanics of soft arms pose challenges in developing dynamic control models, especially …
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Programmable adhesion in dry and wet environments through geometric design
… from the infundibulum structure of an octopus. We design a compliant, curved stalk paired with an active, deformable membrane that adapts its shape to complex surface conditions for effective attachment. The curvature of the stalk enhances attachment by increasing conformal contact on …
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Graveyard Shifts: Unearthing Identity Myths and the Retro Rebrand
… parlor turned burger joint represented by an octopus selling mysterious nuggets to children. The corporation’s visual representation evolves through time, although the original intent for the location is never truly gone. </p>
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