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 798 for “"Avian"”.
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Evolutionary dynamics of avian and non-avian limb morphology
… evolution of these elements. In contrast, non-avian theropods and flightless birds likely had more relaxed biomechanical constraints on these elements, and therefore the potential for greater evolutionary lability. In chapter two of this thesis, we tested whether the relationships among limb …
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Avian telomere dynamics
… I examined the telomere dynamics of various avian species, investigating both the causes of variation in telomere length among individuals and what effect this variation has on attributes such as survival rates. Previous studies have shown that most telomere loss occurs in young individuals …
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Transcriptional and Translational Products of Avian Erythroblastosis and Avian Myeloblastosis Viruses
… transcription and translation products of two avian acute leukemia viruses, avian erythroblastosisvirus (AEV) and avian myeloblastosisvirus (AMV), were examined. AEV is defective in virus replication and requires the presence of a helper virus to produce infectious progeny. AEV-transformed …
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Crystallins and avian phylogeny
Contains fulltext : mmubn000001_029086396.pdf (Publisher’s version ) (Open Access)
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Avian diet and visual perception suggests avian predation selects for color pattern mimicry in bumble bees
… patterns are thought to convey protection from avian predators, thus creating selection for fewer, more effective color patterns. Evidence for birds as predators of bumble bees primarily comprises logical arguments bolstered by only a few laboratory studies and empirical accounts. Although the …
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DEVELOPMENT OF AVIAN PARAMYXOVIRUS VECTORED VACCINES
Avian Avulaviruses (formerly Avian Paramyxoviruses, APMV) are important pathogens of avian species and have been used as viral vectors for more than two decades. Among all APMVs, Newcastle disease virus (NDV or APMV-1) has been most extensively used as a vaccine vector for protection against avian …
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Studies on Avian Pleuropneumonia-Like Organisms
Made available in DSpace on 2014-12-05T21:45:25Z (GMT). No. of bitstreams: 1 0011550.pdf: 5352401 bytes, checksum: b47b2286b3f4dcbf6ff2cb87261e452e (MD5) Previous issue date: 1955
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Human adaptation of avian influenza viruses
Human adaptation of avian influenza viruses pose an enormous public health challenge as the human population is predominantly naive to avian influenza antigens. As such, constant surveillance is needed to monitor the circulating avian strains. Of particular importance are strains belonging to H5N1, …
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Field instrumentation for vocalizing avian survey
We present automated instruments to facilitate the monitoring of vocalizing species in their environment with minimal disruption. These devices offer recording and acoustic localization of bird calls and relay data via the GSM cellular network to remote servers. Further, the system may be augmented …
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Evolutionary Patterns of Avian Tetrodotoxin Resistance
… Evolution of Tetrodotoxin-Binding Sites in Avian Naᵥ Channels Tetrodotoxin (TTX) is a potent neurotoxin that blocks voltage-gated sodium channels (Naᵥ), inhibiting nerve and muscle function. Some species possess TTX as an anti-predator defense, and some predator species have evolved …
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The role of incubation temperature in determining avian phenotype: implications for avian ecology, life history evolution, and conservation
… temperatures are a defining component of the avian developmental environment. Aspects of the nest environment may be an important and overlooked maternal effect in birds as nearly all birds physically incubate their eggs, thus providing a clear link between parental behavior and the …
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Avian habitat relationships in the Mojave Desert
The relationship between bird community composition and plant community composition and structure was studied over three years (1994-1996) in a variety of Mojave Desert habitat types. This study addressed two fundamental questions: what plant community characteristics are statistically related to …
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Strategies for Oncogenesis by Avian Leukosis Viruses
<p>The mechanism of oncogenesis by avian leukosis viruses (ALVs) was examined. ALVs are slowly transforming RNA tumor viruses that do not transform cells in tissue culture and that cause neoplastic disease only after a latent period of 4-12 months. ALVs generally induce widely disseminating B cell …
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Multidimensional Approach to Comparative Avian Visual Systems
… to understand the diversity and evolution of the avian visual system. The goal of this dissertation was to characterize multiple visual dimensions on bird groups that are highly speciouse (e.g., Passeriformes), and test some hypotheses and predictions, using modern comparative tools, on the …
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Studies on monoamine oxidase in avian brain
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Avian Distribution Patterns and Conservation in Amazonia
In this dissertation, I address the distribution and conservation of the Amazonian avifauna at several different scales. In Chapter 1, I looked at how the spatial bias in ornithological collections affects our understanding of the patterns of diversity in Amazonia. I showed that Amazonia is …
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