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Cranial Morphology, Taxonomy, and Systematics of Pachycephalosaurids (Dinosauria, Ornithischia)
DownloadSpring 2022
Pachycephalosauridae (pachcycephalosaurids) were small to medium sized bipedal ornithischians, known solely from the Late Cretaceous of North America and Asia. These dinosaurs are characterised by thick, often domed frontals and parietals (frontoparietal dome), which are thought to have been used...
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Derivational Suffix Knowledge: What do Students Know and How to Best Support Their Learning
DownloadSpring 2024
Despite the considerable attention given to morphology instruction in recent years, there remains an essential need to understand how and when it should be taught, as well as whether it is better suited for students with specific characteristics. Thus, the objective of this dissertation was...
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Exploring between the lines: the role of texts and interlinear representation in the description of Coahuitlán Totonac
DownloadSpring 2024
Recording and transcribing textual material is a critical part of documentary and descriptive linguistics. The advantages of text collection in minority language communities are recognised to extend beyond linguistics and texts offer a valuable record of the community’s oral history. Although...
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Formation and Morphology of an Iron Plaque on the Roots of Typha latifolia L. Grown in Solution Culture.
Download1984
Taylor, G.J., Rodden, R., Crowder, A.A.
Roots of Typha latifolia L. exposed to Fe2+ under reduced conditions in solution culture developed visible coatings (plaques) of an oxidized Fe compound that extended as much as 15-17 ,um into the rhizosphere. Iron concentrations were significantly less and discoloration was not apparent on the...
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2004
Populations of a host species may exhibit different assemblages of parasites and other symbionts. The loss of certain species of symbionts (lineage sorting, or ‘‘missing-the-boat’’) is a mechanism by which geographical variation in symbiont assemblages can arise. We studied feather mites and lice...
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Homology in comparative, molecular, and evolutionary developmental biology: The radiation of a concept
Download2003
The present paper analyzes the use and understanding of the homology concept across different biological disciplines. It is argued that in its history, the homology concept underwent a sort of adaptive radiation. Once it migrated from comparative anatomy into new biological fields, the homology...
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Identification of Dioryctria (Lepidoptera : Pyralidae) in a seed orchard at Chico, California
Download2006
Gillette, N. E., Sperling, F. A. H., Roe, A. D., Stein, J. D.
Abstract: Species of Dioryctria Zeller (Lepidoptera: Pyralidae) are important pests of conifers, particularly in seed orchards, and accurate species identification is needed for effective monitoring and control. Variable forewing morphology and lack of species-specific genitalic features hinder...
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2017-10-08
SSHRC Awarded IG 2018: The project will document languages belonging to the Central Totonac branch of the Totonacan language family, which are in danger of extinction. Languages contain irreplaceable records of a people's knowledge of their natural environment and their cultural, social, and...