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 90 for “"non-lethal"”.
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Non-lethal methods for assessing the health and status of fish species of conservation concern.
Development of nonlethal sampling methods has increased in response to the need for studying the impacts of global change and anthropogenic perturbations on threatened and endangered species. This dissertation focuses on how a commonly occurring relative of a species of conservation concern can be …
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Biogeographic Patterns, Predator Identity, and Chemical Signals Influence the Occurrence and Magnitude of Non-lethal Predator Effects
… habitat selection, and morphology. These non-lethal effects of predators can propagate to multiple trophic levels and often exert equal or larger effects upon communities than those of direct consumption. For non-lethal predatory effects to occur, prey must detect and respond to predation …
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Use of non-lethal endpoints to establish water quality requirements and optima of the Topeka Shiner (notropis topeka)
… water quality assessments are primarily based on lethal level experiments (e.g. LC50 tests), which are poorly suited for assessing optimal water quality conditions or sub-lethal effects of common stressors. Measurements below threshold values may still impede organismal growth and development, …
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Lack of Delayed-Type Hypersensitivity in Striped Bass (<i>Morone saxatilis</i>)
… fishes. Unfortunately, there are currently no non-lethal diagnostic tests for mycobacterial infection in fishes. Type IV delayed type hypersensitivity (DTH) responses <em>in vivo</em> and i<em>n vitro</em> are currently used for the non-lethal detection of mycobacterial infections in humans and …
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Wolves and Livestock: A review of tools to deter livestock predation and a case study of a proactive wolf conflict mitigation program developed in the Blackfoot Valley, Montana
… when wolves come into conflict with humans. Non-lethal conflict mitigation tools have been developed, funded, and implemented in several communities throughout the NRM; in hopes of decreasing the polarization that once ruled the debate between the stakeholders. Montana ranchers have always …
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Wolves and Livestock: A review of tools to deter livestock predation and a case study of a proactive wolf conflict mitigation program developed in the Blackfoot Valley, Montana
… when wolves come into conflict with humans. Non-lethal conflict mitigation tools have been developed, funded, and implemented in several communities throughout the NRM; in hopes of decreasing the polarization that once ruled the debate between the stakeholders. Montana ranchers have always …
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Visitor Perceptions of Black Bear Management Options in Big South Fork National River and Recreation Area
… more informed visitors were more in favor of non-lethal black bear management options than less informed visitors. Urban visitors were less in favor of hunting as a management option. Urban visitors were more in favor of non-lethal management options than were rural visitors. Females were less …
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THE ROBOTFALCON: A NEW METHODOLOGY TO STUDY PREY-PREDATOR INTERACTION AND AN INNOVATIVE BIRD DETERRENCE TOOL
… Predators can influence prey through both lethal and non-lethal effects. The latter are less straightforward and therefore less explored than the former, yet they are expected to be of comparable, if not greater, importance in shaping prey adaptations. Birds, due to their complex …
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Single-Cell Image Analysis Enables High-Throughput Phenotypic Drug Screen and Elucidates Cell-Fate Decision Principles
… cell-fate decision in single cells under non-lethal dose of chemotherapy via time-lapse microscopy before, during and days after treatment. Surprisingly, while high p21 is associated with senescence at late times, we find the opposite at early times during drug treatment: most …
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Single-Cell Image Analysis Enables High-Throughput Phenotypic Drug Screen and Elucidates Cell-Fate Decision Principles
… cell-fate decision in single cells under non-lethal dose of chemotherapy via time-lapse microscopy before, during and days after treatment. Surprisingly, while high p21 is associated with senescence at late times, we find the opposite at early times during drug treatment: most …
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Bioelectrical impedance analysis as a predictor of fish health and energy content in juvenile rainbow trout (Oncorhynchus mykiss)
… data. This has led to research into novel non-lethal methods of analyzing fish tissue so as to determine the body composition and health condition of fish without sacrificing the animal. One such method is Bioelectrical Impedance Analysis (BIA). BIA is a quick, non-lethal procedure that can …
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Cardioprotective effects of Glucagon-like Peptide 1 (GLP-1) and their mechanisms
… that has been demonstrated to protect against non-lethal ischaemia reperfusion injury in the left ventricle in humans. It has been suggested from some animal research that this protection may be mediated through the pathway of ischaemic conditioning, of which the opening of the mKATP channel is …
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Strategies for Overcoming Shortcomings of Thermal Ablations: A Comprehensive Study of Nanoparticle Transport During Photothermal Chemotherapy Treatments, and High Frequency Irreversible Electroporation
… including incomplete tumor treatment and non-specific treatment. Novel therapies are currently studied including nanoparticle-based therapies to overcome these limitations. One field of research is focused on utilizing non-lethal hyperthermia to enhance carried chemotherapeutic drugs. …
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Self-defense in the United States: A review of the literature
… guidelines of proportionality and force; and how non-lethal technology does not change these principles and guidelines. From there, the paper exams three major legal doctrines—Duty to Retreat, Castle Doctrine, and Stand Your Ground— and discusses their definitions, histories, legal significance, …
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Diffuse Brain Injury Triggers Ultra-Rapid Perisomatic Traumatic Axonal Injury, Wallerian Change, and Non-Specific Inflammatory Responses
… reactions were then examined to see if this non-lethal neuronal pathology evoked responses comparable to those following focal injury. Microglia / macrophage responses within diffusely injured loci uncomplicated by focal pathology were explored using LM, TEM, and confocal evaluations as was …
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Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa
… Photo-identification provides a standardised, non-lethal method of assessing the population dynamics of extant species and provides live-encounter mark-recapture and data that are essential for management and conversation. White sharks occur throughout South African coastal waters but their …
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The trophic dynamics of the broadnose sevengill shark (Notorynchus cepedianus) in False Bay, South Africa, using multiple tissue stable isotope analysis
… distances. Stable isotopes provide a low cost, non-lethal method for investigating the short and long-term diet of a predator, which when combined with prey data can be used to understand the trophic interactions and the potential regulatory effects they may have on the structure and function of …
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An experimental assessment of the efficacy of falconry to mitigate human-wildlife conflict: Egyptian Geese Alopochen aegyptiaca at golf courses
… population requires active management. Most non-lethal methods of goose control have had little success due to habituation to their presence, whilst the use of lethal methods are often deemed socially unacceptable. In this study we experimentally investigated the efficacy of falconry as a …
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Investigating proteomic profiles of rainbow trout (oncorhynchus mykiss) kidney and liver tissues exposed to low concentrations of waterborne nickel
… fewer significant protein changes compared to non-lethal and non-invasive sample types (e.g. epidermal mucus and blood plasma) with regard to nickel toxicity. The proteome of the kidney as compared to the liver was more significantly affected by nickel. Additionally, findings suggest that …
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