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 9 of 9 for “"Alarm signal"”.
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Behavioral and Physiological Evidence for Musk Gland Secretions as a Chemical Alarm Cue in the Cottonmouth, Agkistrodon Piscivorus
… they have also been suggested to function as alarm pheromones. I conducted two experiments to test the hypothesis that musk gland secretions function as an alarm signal in the cottonmouth (Agkistrodon piscivorus), using behavioral and physiological response variables. In a repeated-measures …
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Cognitive processing during sleep: the role of signal significance and participant characteristics
… children do not reliably respond to a smoke alarm signal (Bruck, 2001). No previous research has investigated the effect of alcohol on the ability to respond from sleep to a smoke alarm. The current project consists of a series of five studies that investigate the response from sleep of …
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Azimuthal Localization and Detection of Vehicular Backup Alarms Under Electronic and Non-Electronic Hearing Protection Devices in Noisy and Quiet Environments
… protectors, background noise levels, and backup alarm acoustic features on listeners' abilities to localize backup alarm signals in the horizontal dimension, as well as on their ability to detect backup alarm signals in the distance dimension, is lacking in the acoustics and safety literature. …
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Predation Risk and Colony Structure in the Pea Aphid, Acyrthosiphon Pisum
… herbivorous insects) are parthenogenetic, emit alarm signals, and have high levels of phenotypic plasticity to cope with environmental stressors like predation risk, they are a model organism for investigating the influence of predation risk on clonal aggregations. This research quantifies the …
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An investigation on the effects of cyanopeptides on the growth and secondary metabolite production of Microcystis aeruginosa PCC7806.
… as when blooms collapse), may be perceived as an alarm signal by surrounding live cells, which may in turn slow cell division and prepare for re-invasion. This may be a strategy for species survival and dominance. While the results from this study do not confirm a role for cyanopeptides, it is …
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Defining a Role for Inducible Heat Shock Protein 70 (HSP70i) In Mediating Autoimmune Vitiligo
… will secrete antigen bound HSP70i to act as an alarm signal in activating dendritic cells (DCs), invoking a targeted response towards melanocytes. Thus HSPs are candidate molecules mediating the transition between causative stress and the autoimmune response to follow. We hypothesized that …
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Effects of Simultaneous Alarms on Resolution Heuristics
<p>Automated signaling systems are frequently used to direct operator attention to potential hazards. Although these automated systems can lead to enhanced human performance, factors such as degraded alarm signal reliability and lack of trust can undermine the potential benefits of automation …
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Behavioral and Reproductive Plasticity in Eastern Mosquitofish (Gambusia Holbrooki) in Response to Predatory Cues
… the level of predation risk. Many fishes possess alarm signaling systems, wherein an individual can detect injured conspecifics via olfaction and respond behaviorally to the presence of a predator. The superorder Ostariophysi exhibits a fright reaction to injured conspecifics, characterized by …
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The role of locus coeruleus norepinephrine in reinforcement learning
… following movement after no-go tones, or false alarms, elicited the highest activity. Our electrophysiology data also indicated some degree of heterogeneity in LC-NE neuronal activity, such that some neurons exhibited pre-press activity, some had post-reward activity, few had both, but all LC-NE …