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 21747 for “"Species"”.
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Competition between species can drive public-goods cooperation within a species
… cooperation have relied on studying a single species in isolation. In contrast, species in the wild live within complex communities where they interact with other species. Little effort has focused on understanding the effect of interspecies competition on the evolution of cooperation within a …
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Systematics and Species Delimitation in New Guinea Skink Species Complexes (Squamata: Scincidae)
… topics in systematic and evolutionary biology, species are a fundamental unit in biology, and are utilized by and critical to a wide variety of studies in the life sciences. Despite this importance, little work has focused on developing and examining objective methods for species delimitation …
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Species-specific Myoglobin Oxidation
… that the HNE effect on OxyMb oxidation was species-specific. This thesis investigated the effect of HNE on the redox stability of OxyMbs derived from seven meat-producing animal species. The results suggested that the effect of HNE on OxyMb oxidation was correlated with the number of His …
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Exotic Species of Hydrogen
This thesis deals with experimental and theoretical investigations of the triatomic molecule H3 and the negative ion of Hydrogen H-. These 'exotic' systems of Hydrogen are known to have a rather instable character due to their strong internal coupling and correlation phenomena. Their astrophysical …
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Species and Hyperplane Arrangements
… characters: Hopf monoids in the category of species and the Tits algebra of a real hyperplane arrangement. The relation between these two comes from the work of Aguiar and Mahajan (2013), who showed that a (co)commutative Hopf monoid gives rise to a family of (left)right-modules over the Tits …
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Preservation of a species
… the experience that authenticates us as a living species: failure. We've unanimously designated its unattainable opposite as the standard of success: perfection. This quality is a requisite of our accelerated culture, the achievement manifested in an exponentially growing inventory of artifacts …
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Response of Three Species of Monkeys to Caregiver Use of Species-Typical Behavior
… positively to interactions with caregivers. Some species showed increased affiliative behaviors and decreased abnormal or self-directed behaviors after interactions. These studies showed that caregivers can affect the behavior of nonhuman primates. Caregivers are underutilized as a source of …
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The Potential Allelopathic Effect of Several Grass Species on Native Missouri Prairie Plant Species
Aqueous shoot and root extracts of five grass species, Sorghastrum nutans (Indian grass), Andropogon gerardii (big bluestem), Bothriochloa bladhii (caucasian bluestem), Panicum virgatum (switch grass), and Schizachyrium scoparium (little bluestem), were tested in petri plates for two weeks for …
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Species survey, monitoring and management of economically important stink bug species in eastern Virginia
… the United States. Knowledge of the biology, the species complex, and insecticide susceptibility can improve management. A survey was conducted in Virginia to determine the species complex in soybean and cotton and to monitor for nonnative species. Seven stink bug species were identified. …
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Pyrimidine Genes in Pseudomonas Species
… study of gene arrangements in Pseudomonas species, and is organized into three major sections. The first section compares gene arrangements for different pathways in Pseudomonas aeruginosa PAO1 to determine if the gene arrangements are similar to previous studies. It also serves as a …
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Species richness in reed marshes
Contains fulltext : 146655.pdf (Publisher’s version ) (Open Access)
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Sedimentation of multi-species particles
Includes bibliographical references.
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Lignin biodegradation: reduced oxygen species
… The possible involvement of reduced oxygen species produced by white-rot fungi in the initial breakdown of the lignin macromolecule, during its biodegradation, was investigated. Using Coriolus versicolor as a representative of white-rot fungi, I demonstrated that C. versicolor exports …
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The Argument from Species Overlap
The "argument from species overlap" (abbreviated ASO) claims that some human and nonhuman animals possess similar sets of morally relevant characteristics, and are therefore similarly morally significant. The argument stands as a general challenge to moral theories, because many theories hold that …
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CO₂ Mineralization Using Reactive Species
… CO?, a possibility of mineralizing CO? with the species such as Ca°? and M°? ions that are already present in sea water was studied. A series of experiments conducted at temperatures in the range of 20 to 40°C showed that the activation energy for the formation of nesquehonite (MgCO?°3H?O) is …
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Multiple-Species Models for True Abundances Allowing for Heterogeneity of Capture Between and Within Species
… animals often differ both within and between species. Previous research involving multiple species' abundances have largely ignored this fact. In this paper, we explore the use of finite mixture modeling to quantify species' true abundances within a population while allowing for unknown …
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