Flux tubes, visons, and vortices in spin-charge separated superconductors

The idea of spin-charge separation in cuprate superconductors has been recently energized by Senthil and Fisher who formulated a Z_2 gauge theory and, within its context, proposed a ``vison detection'' experiment as a test for topological order in a sample with multiply connected geometry. Here we show that the same experiment can be performed to test for the spin-charge separation in U(1) [but not in SU(2)] theory and argue that vortex core spectroscopy can in fact distinguish between the different symmetries of the fictitious gauge field.Comment: 3 pages, 1 ps figure. Invited talk at the 13th International Symposium on Superconductivity in Toky

Unattended Autonomous Mission and System Management of an Unmanned Seaplane

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90651/1/AIAA-2011-1614-249.pd

Fault Detection and Fail-Safe Operation with a Multiple-Redundancy Air-Data System

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/83640/1/AIAA-2010-7855-622.pd

The material geographies of Bitfury in Georgia: Integrating cryptoasset firms into global financial networks

Cryptocurrencies, such as Bitcoin, have garnered significant attention in scholarship and beyond. Geographical work on cryptocurrencies has focussed on how their energy demand interacts with local communities and economies. Less is said about the organization of cryptoasset firms and their associated demands. This paper illuminates the complex geographies of one such firm, Bitfury Group, to investigate the global and national forms and structures such companies take and the factors encouraging them to concentrate operations in certain areas. To investigate the latter, we adopt the case study of Bitfury’s operations in Georgia, a South-Caucasian country where its presence is significant. We adapt Haberly et al.’s analytical framework to explore Bitfury’s geographical dimensions. We highlight how cheap electricity, regulatory and taxation regimes, personal encounters and personalities, and the materialities of hardware and energy-saving technology define these geographies and illuminate how Bitfury actively curates advantageous regulatory spaces. We encourage future work exploring Blockchain and Bitcoin technologies to understand the companies involved as simultaneously material and virtual, and as centrepieces in global networks interweaving production and finance

“Performance Under Pressure: An Analysis of Field Goal Attempts in Pressure Situations”

Collegiate placekickers, especially kickers at FBS Power 5 institutions, across the country experience high levels of pressure when they are called upon to make a field goal attempt that could help their team win the game. This field goal within the presence of pressure can lead to an attempt resulting in an enormous celebration or a disastrous defeat due to a multitude of different factors, like the distance of the attempt, the amount of wind, if the opposing coach calls a timeout before the attempt to ice the kicker, etc. In this study, pressure kicks are defined as an attempt within the last five minutes of the fourth quarter or any kick in overtime to either make the game a one possession game if the team is losing by 9 to 11, if the team is down by less than three points, if the teams are tied or if the kicking team is leading by 6 to 8 to force the game into a two score game for the opposing team. Previous literature has determined that the largest predicting variable in the outcome of the attempt is the distance. Data was recording using the ESPN database and the WeatherStem database. 1,286 total kicks were observed from the 2019-2020 FBS Power 5 football season, with 98 of those attempts being “pressure” kicks. The distance and the amount of wind present were found to be the strongest predicting factors, while pressure was not a statistically significant variable. Based on the 98 observed pressure field goals, this model correctly predicted approximately 90% of the made field goal attempts in a pressure situation.  Master of Art

Urban Ground Covers Influence Soil Characteristics and Beetle Communities in Riparian Zone

Riparian zones are terrestrial habitats adjacent to rivers or streams that frequently undergo environmental fluctuation and offer unique ecosystem services. Previous research has shown that varying ground cover due to urbanization can lead to adverse effects on soil quality and arthropod abundance. This experiment investigates ground cover effects on arthropod communities, soil pH, and conductivity. The ground covers examined in this experiment were control, litter addition, litter removal, and grass addition. Forty plots were constructed in October 2020 in an urban riparian forest within Binghamton University’s Nature Area. Ground arthropods were collected in June, July, and September of 2021 while soil was collected in July and October. Ground arthropods were collected using twenty-four-hour wet pitfall traps and then counted and identified to order and family levels. Arthropod groups primarily consisted of spiders, centipedes/millipedes, beetles, springtails, ants, and mites. In June, we found the highest abundance of beetles in the grass addition (11.0 ± 1.6), followed by the removal (9.8 ± 1.7), and lastly the control (8.7 ± 1.1) and the addition (8.7 ± 1.3). The high abundance of beetles in grass treatment may be attributed to the dietary resources added, while the removal plots create an open habitat space. Results also show a difference in pH and conductivity for each treatment when compared to the control. This suggests that differences in microclimates caused by treatments may alter ground arthropods present and soil characteristics.https://orb.binghamton.edu/research_days_posters_2022/1014/thumbnail.jp

Assessing the Impacts of Anthropogenic Pollutants on Earthworm (Eisenia fetida) Biomass and Behavior Using Soil Microcosms

Anthropogenic pollutants are a common issue, yet ubiquitous in natural environments. In this experiment, Eisenia fetida, a common indicator of ecosystem health, was exposed to varying pollutants and assessed using behavioral assays, escape response to stress, change in biomass, and avoidance trials. The treatment groups included; high (HMP) and low (LMP) microplastics, high and low salt concentrations, imidacloprid pesticide, and combinations of the latter three. Following experimental testing, pH and conductivity were measured to assess soil health. In the presence of microplastics, earthworms showed a significant decrease in their ability to respond to stress, indicating negative impacts on behavior. We also found significant differences between initial and final biomass for the control, HMP, and LMP. In conclusion, microplastics and high salinity alters earthworms ability to respond to stress and biomass differences may be attributed to the “peanut butter on a cracker theory”, wherein nutrients are derived from microbial biofilmshttps://orb.binghamton.edu/research_days_posters_2023/1137/thumbnail.jp

Designing a Fully Online Social Marketing Course for 21st Century Learners

This paper focuses on the development of a Social Marketing for Public Health course created for health sciences students at the University of Ontario Institute of Technology (UOIT). The course was intended to help students develop the skills required for planning and delivering social marketing campaigns. The development of this course brought together members of the Faculty of Health Sciences and the Teaching and Learning Centre at UOIT with individuals from ChangeMakers, a Canadian social marketing agency. Designing authentic learning experiences, providing students of a range of technical backgrounds opportunities to demonstrate their achievement of the learning outcomes, building in a strong social element to suit the nature of subject area, and scaffolding student learning in a fully asynchronous learning environment were four overarching challenges faced by the development team. This paper addresses those challenges, discusses the theoretical underpinnings and learning theories – including Constructive Alignment and Universal Design for Learning – which guided this process and identifies steps for further developing this course for future offerings

Energy-Aware Multiflight Planning for an Unattended Seaplane: Flying Fish

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/143017/4/1.i010484.pd