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Articles 1 - 8 of 8
Full-Text Articles in Physical Sciences and Mathematics
Effects Of The Transportation And Climate Initiative On The Maine Economy: An Analysis Of Cap-And-Invest And Its Heterogeneous Impacts On Rural And Urban Households, William L. Somes
Honors College
In December 2020, a memorandum of understanding (MOU) was released by the Transportation and Climate Initiative Program (TCI-P), a collaboration of 13 jurisdictions in the New England and Mid-Atlantic regions of the United States. Modeled on the Regional Greenhouse Gas Initiative (RGGI), the TCI-P follows a cap-and-invest framework to reduce emissions from the transportation sector by 26% from 2022 to 2032. Since the TCI-P is expected to raise the price of gasoline by 5¢ to 9¢ per gallon, there has been concern that some populations may be disproportionately affected. The present research studies the potential heterogeneous impacts of the TCI-P …
Predicting Range Shifts For The Virginia Opossum In Maine, Sara Griffin
Predicting Range Shifts For The Virginia Opossum In Maine, Sara Griffin
Honors College
Species distribution and movement are increasingly influenced by climate change and human expansion. The Virginia opossum (Didelphis virginiana) has been observed expanding their range northward due to the warming temperatures and urbanization. The Virginia opossums’ northern range is thought to be restricted by two abiotic winter factors, snow cover and low temperatures, which prevents foraging and ultimately leads to starvation. For this study, I predicted the movement of the Virginia opossum northward into central Maine and beyond based on current climate change trends. Microclimate temperatures were recorded using data-loggers and climate variable datasets were used to determine if …
Evaluating The Capacity Of Ascophyllum Nodosum Habitats To Act As Carbon Sinks In The Gulf Of Maine, Megan Sinclair
Evaluating The Capacity Of Ascophyllum Nodosum Habitats To Act As Carbon Sinks In The Gulf Of Maine, Megan Sinclair
Honors College
Some coastal ecosystems are defined as being carbon sinks for their ability to absorb more carbon than they release as a result of their high primary productivity. There has been support for the claim that macroalgal communities can act as carbon sinks and reduce levels of CO2in seawater through photosynthesis and potentially mitigate some local effects of climate change (Chung et al., 2011; Chung et al., 2013; Hill et al., 2015; Sondak et al., 2017). Within the state of Maine, rocky intertidal zones are coastal ecosystems that are particularly vulnerable to climate change and dominated by Ascophyllum nodosum (rockweed) communities …
Enso Cycle Driven Spatio-Temporal Variability Of Temperature, Salinity, And Nitrate In In The California Current, Nathan Shunk
Enso Cycle Driven Spatio-Temporal Variability Of Temperature, Salinity, And Nitrate In In The California Current, Nathan Shunk
Honors College
Nitrate, temperature, and salinity conditions in the coastal upwelling regions of the California Current System vary on decadal timescales due to El Nino Southern Oscillation (ENSO) cycles. This study examines the quarterly variations in these conditions over the period 1979 to 2018 for CalCOFI cross-shelf transect 80, located at Point Conception. The CalCOFI dataset was indexed by NOAA’s Multivariate ENSO Index version two, climatologies were formed over El Nino, La Nina, and neutral quarters and then anomalies were calculated from these climatologies. Variations are most predominantly visible in the upper 200m of the water column and can be seen both …
The Synthesis Of Photoswitchable Triptan Derivatives, Chelsea Sainsbury
The Synthesis Of Photoswitchable Triptan Derivatives, Chelsea Sainsbury
Honors College
Serotonin has various functions throughout the body and directly effects many neurological diseases/disorders, like depression, that are linked to the dysregulation of serotonin. Triptans are indole containing drugs that bind to a subset of serotonin receptors (5-HT1Band 5-HT1D) and are used to treat migraines. In this project, the synthesis of anindole intermediate is attempted. Ideally, an azobenzene would have been added to the 5th position (replacing the primary amine). Azobenzenes are compounds composed of 2 benzene rings connected by a nitrogen-nitrogen double bond that can switch between cis and trans conformations by absorbing different wavelengths of light. The transformation of …
Capturing Climate Change: Investigating The Connections Between Environmental Science & Photography, Sophia Wilcox
Capturing Climate Change: Investigating The Connections Between Environmental Science & Photography, Sophia Wilcox
Honors College
A powerful symbiotic relationship is the one between photography and the field of environmental science. They coexist together in such a way that the progress of one inherently allows for progress in the other. The purpose of this thesis is to investigate and illuminate this specific link. From the earliest cameras, photography was able to capture small details that the eye wasn’t able to see. This ability gave scientists the opportunity to capture images of up-close cells, viruses, certain species, and more. As the popularity of caring for the environment increased, the technologies of science and photography grew alongside. The …
Modelling The Filling Of Methane In Heterogenous Pore Networks, Samuel Bonnevie
Modelling The Filling Of Methane In Heterogenous Pore Networks, Samuel Bonnevie
Honors College
In the field of heterogeneous catalysis, there is great interest in the transport properties of ordered mesoporous materials such as SBA-15, but inverting quasi-elastic neutron scattering data for materials with a distribution of pore sizes such as SBA-15is an ill-posed problem. This project aimed to generate an idealized model of methane adsorption in the pores of SBA-15so that in the future, molecular dynamics simulations can be used to study diffusion.By sampling over a canonical ensemble using the Metropolis Monte Carlo Method and using Widom’s insertion method alongside Vaitheeswaran and Rasaiah’s insertion/removal method to calculate the chemical potential, isotherms comparable to …
Rift: A Mobile Application For Umaine, Michael Ciance
Rift: A Mobile Application For Umaine, Michael Ciance
Honors College
COVID-19 affected schools and universities nationwide in 2020 and is still an ongoing threat to public safety. With many institutions converting to remote learning and distanced campuses, students and faculty face many challenges. The social climate and issues facing students and faculty is leading to stress, low morale, and overall poor moods. Universities are trying to accommodate as best as possible but what they do is not always enough. A sense of community surrounding schools can be damaged by the processes of social distancing and working from home. Students need a way to communicate what they believe to be important …