Potential Contamination Risk In Tennessee Aquifers From Oil And Gas Drilling, 2019 University of Tennessee
Potential Contamination Risk In Tennessee Aquifers From Oil And Gas Drilling, Emma Reed
University of Tennessee Honors Thesis Projects
No abstract provided.
Ethical Problems With Plastic In The Ocean, 2019 Dominican University of California
Ethical Problems With Plastic In The Ocean, Brennan Cotter
Senior Theses and Capstone Projects
In the year 2018 this paper argues that plastic use and waste is destroying our oceans and that we should address the problem by fully adopting the principle and practices of sustainability. The first section outlines the advent of our plastic disposable culture. The second section gives evidence of how plastic waste is negatively affecting marine life. The third section draws from literature in environmental philosophy to develop the concept of sustainability, and the concluding section outlines several steps we can take as individuals and nations to practice sustainability.
A Global Database Of Surface Urban Heat Island Intensity, 2019 Yale University
A Global Database Of Surface Urban Heat Island Intensity, Tc Chakraborty, Xuhui Lee
Yale Day of Data
The urban heat island (UHI) effect - the phenomenon of higher temperatures in urban environments - is one of the most well-known consequences of urbanization on local climate. We develop the simplified urban-extent (SUE) algorithm, a new algorithm to estimate the urban heat island (UHI) intensity at a global scale. This algorithm is implemented on the Google Earth Engine platform and uses satellite-derived images to calculate the surface UHI intensity for over 9500 urban clusters covering 15 years, making this the most comprehensive global UHI database. The data are validated against previous multi-city studies and then used to estimate the diurnal, monthly ...
An Airlifted Tidal Mesocosm For Oil Degradation Studies, 2019 Louisiana State University and Agricultural and Mechanical College
An Airlifted Tidal Mesocosm For Oil Degradation Studies, Daniel Christopher Alt
LSU Doctoral Dissertations
Mesocosms were constructed to allow scientists to isolate variables in a microtidal marsh environment, mimicking the natural conditions found in Terrebonne Bay. The control offered by these mesocosms is given by a process control system that takes user inputs and automates water movement. Twelve mesocosms were constructed, each holding 4.02 m3 (142 ft3) of marsh soil and 3.88 m3 (137 ft3) of water to give 3 experimental levels and a control, all in triplicate.
Each mesocosms that was constructed contained marsh plants in soil plugs 9 feet in diameter and 3 feet deep. These ...
Notes On The Gridlab-D Household Equivalent Thermal Parameter Model, 2019 Iowa State University
Notes On The Gridlab-D Household Equivalent Thermal Parameter Model, Leigh Tesfatsion, Swathi Battula
Economics Working Papers
GridLab-D (GLD) is an agent-based platform, developed by researchers at Pacific Northwest National Laboratory, that permits users to accurately simulate the state dynamics of power distribution systems at time scales ranging from sub-seconds to years. The purpose of this study is to present, in careful comprehensive form, a complete analytical state-space control representation for a version of the GLD Household Equivalent Thermal Parameter Model as support documentation for model users. This model is a physically-based implementation of a household with multiple price-responsive and conventional appliances whose thermal dynamics are determined over successive days by resident appliance usage and external weather ...
Using A Case Study Approach To Teach Invasive Species And Climate Change, 2019 Lake Preston School District, Lake Preston, South Dakota
Using A Case Study Approach To Teach Invasive Species And Climate Change, Amanda Hoover, Bradley Blaha, Jacob Englin, Madhav P. Nepal, Larry B. Browning, Matt L. Miller, P. Troy White
iLEARN Curriculum Resources
In this teaching module, students will explore emerald ash borer (EAB), its impacts on the ash trees, and how warming temperatures could affect EAB populations. The emerald ash borer is a green buprestid or jewel beetle native to north-eastern Asia that causes devastating disease in ash trees.
Implications Of Dam Removal: Modeling Streamflow In Lansing, Michigan Using The Soil And Water Assessment Tool, 2019 University of Wisconsin-Milwaukee
Implications Of Dam Removal: Modeling Streamflow In Lansing, Michigan Using The Soil And Water Assessment Tool, Ryan J. Filbin, Laiyin Zhu, Lisa Dechano-Cook, Lei Meng
International Journal of Geospatial and Environmental Research
This paper uses hydrologic modeling methods to determine the effects of dam removal in Lansing, Michigan, on the streamflow of the Grand River, flooding risks, and flood mitigation strategies. In Michigan, more than one-half of the state’s dam infrastructure is more than 50 years old, and more than one-third are classified as having a moderate-to high-risk potential. Lansing, Michigan, contains two moderate-to high-risk dams along the Grand River that are a significant hazard to the surrounding community in the event of structural failure. This research utilizes the Soil and Water Assessment Tool (SWAT) to model the impacts of the ...
Accumulation And Effects Of Dissolved And Nanoparticle Silver And Copper In Two Marine Seaweed Species, 2019 Jacksonville University
Accumulation And Effects Of Dissolved And Nanoparticle Silver And Copper In Two Marine Seaweed Species, Samreen Siddiqui, Gretchen K. Bielmyer-Fraser
Georgia Journal of Science
This study investigated the accumulation and effects of metal nanoparticles in two seaweed species, Ulva lactuca and Agardhiella subulata. Both seaweeds were exposed to silver nitrate (AgNO3), silver nanoparticles, and copper oxide (CuO) nanoparticles for 48 h. Metal accumulation occurred in both seaweed species in a concentration-dependent manner after 48 h exposure to each form of metal. In several cases, seaweeds exposed to AgNO3 (the dissolved form) accumulated comparatively higher tissue Ag concentration than seaweed exposed to Ag nanoparticles; and A. subulata had higher tissue Ag concentrations than U. lactuca after exposure to AgNO3 for 48 h ...
Master’S Project: Vermont Town Forest Recreation Planning And Community Assistance Program: The Future Of Forest-Based Outdoor Recreation, Taylor M. Luneau
Rubenstein School Masters Project Publications
The Vermont Town Forest Recreation Planning Community Assistance Program (VTFRP) was a comprehensive community planning process held in ten diverse towns across Vermont. Led by the Urban and Community Forestry Program and the SE Group, the VTFRP helped towns develop a vision for the future management of their forests through open house workshops, site visits, steering committee meetings, and community surveys. The process provided towns with a forest recreation planning toolkit and an individualized action-based forest stewardship and recreation plan. By analyzing data from the community surveys and open house activities across all ten towns, my project considered the recreation ...
The Future Of Recreational Fisheries: Advances In Science, Monitoring, Management, And Practice, 2019 Carleton University
The Future Of Recreational Fisheries: Advances In Science, Monitoring, Management, And Practice, Jacob W. Brownscombe, Kieran Hyder, Warren Potts, Kyle L. Wilson, Kevin L. Pope, Andy J. Danylchuk, Steven J. Cooke, Adrian Clarke, Robert Arlinghaus, John R. Post
Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications
Recreational fisheries (RF) are complex social-ecological systems that play an important role in aquatic environments while generating significant social and economic benefits around the world. The nature of RF is diverse and rapidly evolving, including the participants, their priorities and behaviors, and the related ecological impacts and social and economic benefits. RF can lead to negative ecological impacts, particularly through overexploitation of fish populations and spread of non-native species and genotypes through stocking. Hence, careful management and monitoring of RF is essential to sustain these ecologically and socioeconomically important resources. This special issue on recreational fisheries contains diverse research, syntheses ...
A Demonstration Of The Infrared Activity Of Carbon Dioxide, 2019 University of Pennsylvania
A Demonstration Of The Infrared Activity Of Carbon Dioxide, Philip Sieg, William Berner, Peter Harnish, Philip C. Nelson
Department of Physics Papers
Before they can talk meaningfully about anthropogenic climate change, students need to grasp basic principles of natural planetary climates, for example, the key role of trace atmospheric gases in setting surface temperature. We describe a dramatic demonstration that scales well for large audiences and that requires as little as ten classroom minutes to show the crucial difference between room air and carbon dioxide gas. Beyond its significance for public policy, the demonstration can serve as a springboard to motivate discussion of important physics concepts such as rotation and vibration spectra.
Hazardous Waste Site Proximity And Type 2 Diabetes: From Youths To Adults, 2019 Walden University
Hazardous Waste Site Proximity And Type 2 Diabetes: From Youths To Adults, Theresa Ann Johnson
Walden Dissertations and Doctoral Studies
Type 2 diabetes has reached epidemic proportions in adults and youths. Persistent organic pollutants and endocrine-disrupting chemicals (EDCs), such as pesticides, dioxins, and organochlorines, are omnipresent and persist in the environment with potential for human exposure via contaminated air, waterways, soil, and human food supply. EDCs have been correlated with diabetes incidence and risks. Residential proximity to hazardous waste sites (HWS) has been correlated with increased hospital admission rates for diabetes. The study used a sample population (N = 1,724), ages â?¥ 12 years from the 2005-2012 Continuous NHANES and HWS data from the National Priorities List of Superfund Sites ...
Modeled And Measured Ecosystem Respiration In Maize–Soybean Systems Over 10 Years, 2019 Huazhong Agricultural University
Modeled And Measured Ecosystem Respiration In Maize–Soybean Systems Over 10 Years, Ming Zhan, Adam Liska, Anthony Nguy-Robertson, Andrew E. Suyker, Matthew P. Pelton, Haishun Yang
Adam Liska Papers
Crop residue is an abundant resource for the potential production of biofuels, but a better understanding of its use on net carbon emissions must be developed to mitigate climate change. This analysis combines two established crop growth models (Hybrid-Maize and SoySim) with a simple soil and crop residue respiration model to estimate daily ecosystem respiration (ERe) from maize and soybean; ERe was estimated to be the sum of CO2 emissions from the oxidation of the growing crop, crop residue, and soil organic carbon (SOC). Model-estimated CO2 fluxes from irrigated continuous maize and irrigated maize–soybean cropping systems in ...
Analysis Of Mitochondrial Genomes Resolves The Phylogenetic Position Of Chinese Freshwater Mussels (Bivalvia, Unionidae), Rui-Wen Wu, Xiong-Jun Liu, Sa Wang, Kevin J. Roe, Shan Ouyang, Xiao-Ping Wu
Natural Resource Ecology and Management Publications
The Yangtze River basin is one of the most species-rich regions for freshwater mussels on Earth, but is gravely threatened by anthropogenic activities. However, conservation planning and management of mussel species has been hindered by a number of taxonomic uncertainties. In order to clarify the taxonomic status and phylogenetic position of these species, mitochondrial genomes of four species (Acuticosta chinensis, Schistodesmus lampreyanus, Cuneopsis heudei and Cuneopsis capitatus) were generated and analyzed along with data from 43 other mitogenomes. The complete F-type mitogenomes of A. chinensis, S. lampreyanus, C. heudei, and C. capitatus are 15652 bp, 15855 bp, 15892 bp, and ...
Metabolic Engineering For Biocatalyst Robustness To Organic Inhibitors, 2019 Iowa State University
Metabolic Engineering For Biocatalyst Robustness To Organic Inhibitors, Liam Royce, Laura R. Jarboe
Chemical and Biological Engineering Publications
Microbial production of biorenewable fuels and chemicals is often limited by inhibition of the biocatalyst, either by increasing concentrations of the product compound or by contaminant compounds in the biomass‐derived sugars. This inhibition can interfere with economically viable production. Here we discuss typical mechanisms of inhibition and methods for improving biocatalyst robustness. Inhibition often takes the form of inhibition of enzyme activity, depletion of cofactor pools, and membrane damage; methods are discussed for mitigating each of these types of inhibition. Various evolutionary schemes have been developed and implemented on a variety of inhibitory compounds, including butanol, acetic acid, furfural ...
Glauconite Formation In Late Eocene Odp Site 696 Sediment In West Antarctica, 2019 Montclair State University
Glauconite Formation In Late Eocene Odp Site 696 Sediment In West Antarctica, Abbey States
Theses, Dissertations and Culminating Projects
Antarctic sediment cores collected during Leg 113 of the Ocean Drilling Program (ODP) provide important paleoclimatic evidence over the Eocene-Oligocene transition (EOT) – a period of global cooling from greenhouse to icehouse approximately 34 million years ago. The cores, collected thirty years ago, offer new research opportunities with the application of an updated age model for the EOT in West Antarctica (Houben et al., 2013). The core from ODP Site 696 in the Weddell Sea contains a complete EOT record, with a remarkably green stratum attributed to glauconite dated to the late Eocene. The sediment composition, clay mineralogy, and geochemistry of ...
Call For Abstracts - Resrb 2019, July 8-9, Wrocław, Poland, 2018 Wojciech Budzianowski Consulting Services
Call For Abstracts - Resrb 2019, July 8-9, Wrocław, Poland, Wojciech M. Budzianowski
No abstract provided.
Lift On E15 Ban: Should Nebraskan Farmers Be Cheering?, 2018 University of Nebraska-Lincoln
Lift On E15 Ban: Should Nebraskan Farmers Be Cheering?, Samantha Wattier
Op-Eds from ENSC230 Energy and the Environment: Economics and Policies
The common gasoline-ethanol mixture available at gas station pumps is 10% ethanol (E10). The Environmental Protection Agency had a ban on 15% ethanol (E15) during summer months. The news has been covering the talks of President Trump to lifting this summer ban and supporters in Iowa are excited.
Should Nebraska shout Hoorah, too? It is common knowledge Nebraska is better than Iowa. We should be excited, too, right?! NO.
Iowa has been tracking Fuel Revenue sales including those from ethanol blends and has been pushing for the E15 ban lift. Considering Iowa produces MORE corn and MORE ethanol than Nebraska ...
Looking At The True Costs Of Environmental Degradation, 2018 University of Nebraska-Lincoln
Looking At The True Costs Of Environmental Degradation, Zachery Sehnert
Op-Eds from ENSC230 Energy and the Environment: Economics and Policies
Progress is why we change, and innovation drives that progress. It is already very clear to scientists around the globe that our current framework for living is not sustainable. 97 percent of climate scientists are in consensus that there is a major threat to our ecosystem and action needs to be taken. Overpopulation, pollution, water scarcity, natural disasters, overfishing, deforestation are all issues that must be reevaluated with sustainability in mind. However only 49 percent of the general population share this belief, and even less, only 29 percent of CEOs are actively addressing climate change. The shortcoming for the general ...
“Renewable Energy Implementation”, 2018 University of Nebraska - Lincoln
“Renewable Energy Implementation”, William Newcomb
Op-Eds from ENSC230 Energy and the Environment: Economics and Policies
Finding and providing ways to produce energy in an environmentally clean way is becoming a major push for countries all around the world today. Renewable energy provides a clean way to produce energy efficiently without using our planets non-renewable resources. Renewable energy has been growing substantially in the United States in the last decade and is making its way towards becoming a major energy production method. So, what is stopping the United States from implementing renewable energy production into our country at a mass scale?
There are many barriers that are keeping renewable energy from becoming a main source of ...