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 40 for “"Fruit-flies"”.
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Characterization and analysis of the flight dynamics of fruit flies
For centuries, the human race has been perplexed by the various complex physical manifestations in nature. Much of what we have seen in nature we have tried to recreate, from the migration tendencies and routes of sea creatures to the flight of birds and insects. The flight of the fly, in …
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Slipping into Sleep: neurodynamics of alertness transitions in humans and fruit flies
… and the experimental flexibility of the fruit fly, to understand its effect over longer time intervals. I first develop an objective method to track alertness using Electroencephalography (EEG). Then, I investigate the behavioural dynamics using an auditory spatial attention task while …
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cGMP -Dependent Protein Kinase, Behavioral Plasticity, and Foraging in Honey Bees and Fruit Flies
… this by using a traditional genetic model---the fruit fly, Drosophila melanogaster , and a traditional behavioral model---the honey bee, Apis mellifera. Variation in the for gene results in naturally occurring behavioral polymorphism. Two fly alleles have been identified; rover flies show longer …
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Attracting dark-eyed fruit flies, drosophila repleta (diptera: drosophilidae), in swine facilities using color and odor
… swine feed (the on-site material fed on by the flies) were used in volatile preference field trials. While there appeared to be some color preference in laboratory trials, field color trials failed to replicate laboratory results. Red wine was extremely attractive to D. repleta, but there were …
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TBD Economic Impact of Fruit Flies in Mango Production in Senegal: Ex-Post Analysis of mango losses in Ziguinchor (Casamance)
… mango producers in Ziguinchor are facing fruit fly infestations leading to important losses in income. The aim of this study is to measure the impact of the losses encountered by mango farmers in Ziguinchor over three years 2012, 2013, and 2014 and conduct an econometric study to examine …
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Responses to Reflection in Two Invertebrate Species
… in both the crayfish Procambarus clarkii and the fruit fly Drosophila melanogaster. Responses to reflection in crayfish depend on social status and the current work suggests that learning and memory consolidation are required for these responses to be altered. Crayfish were treated to either …
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Análise faunística e flutuação populacional de moscas-das-frutas (Diptera: tephritidae) .
The Brazil is the third largest producer of fruits in the world rankings, with 43 million tons produced, ago only China and India. But the export activity is still low, mainly due to the low level of technology used today in the cultivation of fruit trees. The fruit-flies are pests of greatest …
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Development of a system to measure cardiac function in the drosophila melanogaster animal model
… and disease. The Drosophila melanogaster (Fruit Fly) has a genome similar to humans and therefore has proven to be an important animal model to study the role of genetics in cardiac function and disease development. Fruit flies are an important basic science model because of the ease with …
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Phylogenetic Analysis and Characterization of Plant, Environmental, and Clinical Strains of Pantoea
… Comparative growth assays in maize, onion, and fruit flies revealed that all plant, clinical, and environmental strains are capable of colonizing both plant and animal hosts. Pantoea clinical strains had an overall greater growth rate within fruit flies in comparison to either plant hosts. The …
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A Neuroethology Approach For Insect Senses And Behavior
… I studied learning using sound as a cue in fruit flies and made recordings from the Johnston's organ (JO), I also investigated associative learning in mosquitoes. Finally, I studied Salticid (jumping) spiders to investigate the neural basis of their visual behavior, as well as their acoustic …
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Expression and Function of a Putative Cox-Like Gene in D. melanogaster
… in inflammation in insects, their existence in fruit flies has not been reported. Recent computational analyses by Qi and Singh (2014) have identified putative COX-like enzymes in the fruit fly Drosophila melanogaster. Here we compare the expression patterns of these enzymes and the effects of …
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The Animal Life
… animal behavior, and suggests that animals—from fruit flies to chimpanzees—and humans are most similar in their desire to experiment with the world around them. The remaining chapters explore the practical implications of considering animals through the output / input model, using literature, the …
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INVESTIGATION OF MONGOLIAN SEA BUCKTHORN ((Hippophae rhamnoides spp. Mongolica) - NUTRITIONAL STUDY -
… and chemical analysis. Drosophila melanogaster (fruit flies) were used in sugar manipulation experiments to simulate metabolic stress conditions. The sea buckthorn supplementation improved developmental outcomes in the flies with high sugar diets, implying protective antioxidative or metabolic …
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On the Effects of Stress, Resistance to Stress, and Developmental Stability On Life History Characters In <em>Drosophila Melanogaster</em>
… individuals. <em>Drosophila melanogaster</em> fruit flies derived from populations collected near the Chernobyl nuclear power plant where they had been chronically exposed to low-level ionizing radiation for generations, and flies exposed to ionizing radiation in the laboratory, showed some …
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The role of spectrin in Drosophila photoreceptor development.
… on Drosophila photoreceptor development. In fruit flies the mosaic technique can be used to express both the mutant and the wild-type tissue in a single eye. The mosaic eyes were dissected, fixed, and mounted onto a slide and analyzed using confocal microscopy. Specific roles of α-spectrin, …
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Analysis of Fabry-Pérot laser resonators stabilized by microlenses and applications in speckle-free imaging
… imaging of dynamic targets. Most notably, fruit flies were imaged while flying with high resolution and without speckle or motion blur, an otherwise challenging task because their wings can beat at frequencies up to 200 Hz.
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More than meets the eye: A taxonomic revision of the Nearctic species in the eye-gnat genus Amiota Loew (Diptera: Drosophilidae)
… even in families as seemingly well-studied as fruit flies (Diptera: Drosophilidae). Drosophilidae have had an outsize effect on the history of biology because of their pivotal role in the study of genetics, development, and evolution. Even with more than a century of intensive study, large gaps …
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Technology migration and disruption : a case study of the solid state lighting industry
Geneticists study fruit flies due to their rapid lifecycles. Therefore, it follows that those interested in disruptive innovation study technologies with fast moving clock speeds. The pace of technology in solid state lighting (SSL) is an excellent subject for that purpose. Wherever one looks …
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MODELING COHESIN-DEPENDENT ONCOGENESIS IN VITRO AND IN VIVO: POSSIBLE AMELIORATIVE EFFECTS OF PARP INHIBITION
… downregulation in cancer biology. First, in the fruit flies Drosophila melanogaster I reduced expression of the gene encoding the cohesin component SA (Stromalin, the STAG2 ortholog) and observed the consequences in terms of cell and tissue fitness. I then performed a specific reduction in …
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An Angular Working-Memory Signal that Guides Drosophila Navigational Trajectories
… but also by memories of the environment. In fruit flies, for example, neural signals in a well-studied brain region called the central complex help guide navigation. Previous work has shown that “compass neurons” in the central complex track the fly’s heading angle, while a second set of …
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