Barrett, The Honors College at Arizona State University proudly showcases the work of undergraduate honors students by sharing this collection exclusively with the ASU community.
Barrett accepts high performing, academically engaged undergraduate students and works with them in collaboration with all of the other academic units at Arizona State University. All Barrett students complete a thesis or creative project which is an opportunity to explore an intellectual interest and produce an original piece of scholarly research. The thesis or creative project is supervised and defended in front of a faculty committee. Students are able to engage with professors who are nationally recognized in their fields and committed to working with honors students. Completing a Barrett thesis or creative project is an opportunity for undergraduate honors students to contribute to the ASU academic community in a meaningful way.
A swarm of unmanned aerial vehicles (UAVs) has many potential applications including disaster relief, search and rescue, and area surveillance. A critical factor to a UAV swarm’s success is its ability to collectively locate and pursue targets determined to be of high quality with minimal and decentralized communication. Prior work has investigated nature-based solutions to this problem, in particular the behavior of honeybees when making decisions on future nest sites. A UAV swarm may mimic this behavior for similar ends, taking advantage of widespread sensor coverage induced by a large population. To determine whether the proven success of honeybee strategies may still be found in UAV swarms in more complex and difficult conditions, a series of simulations were created in Python using a behavior modeled after the work of Cooke et al. UAV and environmental properties were varied to determine the importance of each to the success of the swarm and to find emergent behaviors caused by combinations of variables. From the simulation work done, it was found that agent population and lifespan were the two most important factors to swarm success, with preference towards small teams with long-lasting UAVs.
Color changes are observed across a wide range of taxa and can provide a variety of functions, such as communication, thermoregulation, and camouflage. One type of color change observed in various species is pattern change, occurring notably during development as ontogenetic pattern change. Ontogenetic pattern change may continue throughout maturation to align with changing morphology and behavior as the organism ages. We studied the ontogenetic pattern change in Gila monsters, because they are easily maintained in captivity, and undergo ontogenetic change. For this thesis, we examined (1) the relative change in the presence and distribution of the two contrasting skin colors over time, as well as (2) the importance of growth vs. age in the timing of pattern change in Gila monsters. Using FIJI and R Studio software to analyze the data/pictures, the data suggested that neonate Gila monsters start with a high standard deviation in their light spots, and experience pattern breakup (increasing their light/dark spot count), whilst maintaining similar proportions of dark/light areas as they develop. We also found that age is the main driver of ontogenetic change in Gila monsters across 60 weeks, not growth.
