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 387 for “"Locomotor"”.
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The Nuances of Locomotor Strategies in Suspensory Primates (Apes): Locomotor Costs in Terms of Skeletal Injury
<p>Injury may be a significant locomotor cost, in that a severely injured animal may be unable to secure enough food to maintain normal activities, avoid predation, or find mates. Thus, safety is as likely as energetics to be the impetus of natural selection, and both have potential to impact …
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Locomotor Ontogeny and the Evolution of Avian Flight
… birds, which have compartmentalized the single locomotor unit of their ancestors into discrete wing and leg locomotor modules, and exploited terrestrial and aerial environments. Specializing one set of limbs for terrestrial locomotion and one set for flight presumably facilitates navigation of …
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Locomotor Ontogeny and the Evolution of Avian Flight
… birds, which have compartmentalized the single locomotor unit of their ancestors into discrete wing and leg locomotor modules, and exploited terrestrial and aerial environments. Specializing one set of limbs for terrestrial locomotion and one set for flight presumably facilitates navigation of …
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Locomotor kinematics of turtles moving in shallow water environments
… poorly understood and may open insight into new locomotor strategies. Turtles are an interesting study subject to study water-land transitions, as their spines are fused to their carapace, isolating any movement generation to their limbs only. In this thesis, I chose different size red-eared …
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Phylogeny and Evolution of Locomotor Modes in Carnivoramorpha (Mammalia)
… very similar in their postcranial morphology and locomotor styles. The majority of the differences indicate an animal less well adapted to an arboreal lifestyle than has been inferred for other early "miacid" carnivoramorphans. A new genus and species of basal non-Viverravidae Carnivoramorpha, …
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Locomotor biomechanics and behaviour in the ocellate river stingray
… appear to constrain or preclude many of the locomotor behaviours that are employed by fishes that typically swim via undulations of the longitudinal body axis and caudal fin, and which tend to dominate descriptions of fish swimming in the literature. In contrast, stingrays exhibit a variety …
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An Investigation of Navigation Processes in Human Locomotor Behavior
… visual recognition of the hazard and preparatory locomotor changes. With extensive research, formalized guidelines and standards can be developed for the safe planning, design and redesign of pedestrian walkways. The human factors engineer could interact knowledgeably with other professional …
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An In Vitro mammalian model for investigating locomotor pattern generation
The goal of our research was to establish an in vitro mammalian spinal preparation suitable for investigating the mechanisms underlying motor pattern generation. The objective of the study was to compare the step cycle timing of intact, freely moving neonatal and adult Balb/C mice with the pattern …
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Longitudinal Locomotor and Postural Control Following Mild Traumatic Brain Injury
… To expand the knowledge of post-concussion locomotor and postural changes, this investigation examined the recovery of recently concussed athletes longitudinally, over the course of one year, in three domains: 1) path selection and body kinematics during turning gait, 2) non-linear local …
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Organization of brain and spinal cord locomotor networks in larval lamprey
In vertebrates, brain locomotor command systems activate spinal central pattern generators (CPGs) to initiate locomotor behavior. The size and pharmacology of brain command systems are unknown, and the movements that result from these command systems have not been investigated. In addition, it is …
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The Ontogeny of Escape Responses and Locomotor Performance in Sceloporus Woodi
… may be optimized such that their decreased locomotor abilities and use of immobility for concealment changes at a particular body size. I examined this hypothesis in Sceloporus woodi, a small terrestrial lizard. Field measurements of escape velocity were recorded on an ontogenetic series of …
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The Role of Infant Locomotor Onset in Shaping Mother-Infant Communication
This study examines the relation between infant locomotor onset and emotional communication during prohibition scenes. Forty-one infants were videotaped at home with their mothers when the infants were 6 and 8 months of age. At 6 months all infants were pre-locomotor. At 8 months 23 infants were …
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Individual differences in cocaine's locomotor activating effects predicts reward-directed behavior
Humans exhibit marked individual differences in susceptibility to develop drug dependence. Addiction-like behaviors have been modeled in rodents as well with similar individual variability in the development of addiction-like behaviors. One potential mechanism that could differentiate …
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Navigating the night: spatial cognition, locomotor and ranging behaviour in Nycticebus species
… chapter covers topics, comprising ranging and locomotor behaviour, physical ontogeny, spatial cognition, and sociality. I worked at two field sites between 2014 and 2015 in Java and Vietnam, focused on two species of slow lorises (Nycticebus javanicus ,13 ind. and N. pygmaeus, 6 ind.); …
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Genetic dissection of variability in cognitive and locomotor phenotypes using Drosophila melanogaster
… genetic background modifies the presentation of locomotor phenotypes associated with presenilin mutations, a gene linked to development of multiple neurodegenerative diseases including Alzheimer's. I showed that genetic background causes variation in deficit level with some backgrounds performing …
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