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Evaluation Of Spatial Generalization Characteristics Of A Robust Classifier As Applied To Coral Reef Habitats In Remote Islands Of The Pacific Ocean, Justin J. Gapper, Hesham el-Askary, Erik J. Linstead, Thomas Piechota 2018 Chapman University

Evaluation Of Spatial Generalization Characteristics Of A Robust Classifier As Applied To Coral Reef Habitats In Remote Islands Of The Pacific Ocean, Justin J. Gapper, Hesham El-Askary, Erik J. Linstead, Thomas Piechota

Mathematics, Physics, and Computer Science Faculty Articles and Research

This study was an evaluation of the spectral signature generalization properties of coral across four remote Pacific Ocean reefs. The sites under consideration have not been the subject of previous studies for coral classification using remote sensing data. Previous research regarding using remote sensing to identify reefs has been limited to in-situ assessment, with some researchers also performing temporal analysis of a selected area of interest. This study expanded the previous in-situ analyses by evaluating the ability of a basic predictor, Linear Discriminant Analysis (LDA), trained on Depth Invariant Indices calculated from the spectral signature of coral in one location ...


An In Vitro Study On Skin Protection Across The Uv Spectra, Cheyenne Boone 2018 Murray State University

An In Vitro Study On Skin Protection Across The Uv Spectra, Cheyenne Boone

Posters-at-the-Capitol

Skin cancer is the number one cancer in the United States. Lack of awareness of how harmful UV radiation is could be the cause of the over two million cases reported since 2012. It appears that there is not a lot information on the active ingredients used in sunscreens. Some of the compounds have been linked to birth defects, hormone disruptions, and the bleaching of coral reefs. Samples of commonly used sunscreens (both sprays and creams), cosmetic foundation, essential oils, lotions, and three pure organic actives were tested at specific concentrations and ran through a UV spectrometer. The results have ...


Groundwater Contamination At Coal Ash Deposit Sites In Kentucky, Brandon Rose 2018 Murray State University

Groundwater Contamination At Coal Ash Deposit Sites In Kentucky, Brandon Rose

Scholars Week

No abstract provided.


Land-Use/Land-Cover Changes And Their Influence On The Ecosystem In Chengdu City, China During The Period Of 1992–2018, Xiaojuan Lin, Min Xu, Chunxiang Cao, Ramesh P. Singh, Wei Chen, Hongrun Ju 2018 Chinese Academy of Sciences

Land-Use/Land-Cover Changes And Their Influence On The Ecosystem In Chengdu City, China During The Period Of 1992–2018, Xiaojuan Lin, Min Xu, Chunxiang Cao, Ramesh P. Singh, Wei Chen, Hongrun Ju

Mathematics, Physics, and Computer Science Faculty Articles and Research

Due to urban expansion, economic development, and rapid population growth, land use/land cover (LULC) is changing in major cities around the globe. Quantitative analysis of LULC change is important for studying the corresponding impact on the ecosystem service value (ESV) that helps in decision-making and ecosystem conservation. Based on LULC data retrieved from remote-sensing interpretation, we computed the changes of ESV associated with the LULC dynamics using the benefits transfer method and geographic information system (GIS) technologies during the period of 1992–2018 following self-modified coefficients which were corrected by net primary productivity (NPP). This improved approach aimed to ...


Sea Squad, Liam Geary Baulch 2018 Goldsmiths, University of London

Sea Squad, Liam Geary Baulch

The Goose

The Sea Squad is a band of cheerleaders against climate change. Taking action as a team in formation, they gather momentum, inviting all people to cheer with them, mimicking the infinitely expandable nature of the seas' molecular structure. The work was developed and performed as a bilingual project at Est-Nord-Est in Saint-Jean-Port-Joli, Quebec, Canada, and has since been performed and exhibited internationally. The following poems are some of the chants that Sea Squad use to get a crowd cheering together against climate change.


Increasing Health Threat To Greater Parts Of India Due To Crop Residue Burning, Sudipta Sarkar, Ramesh Singh, Akshansa Chauhan 2018 NASA

Increasing Health Threat To Greater Parts Of India Due To Crop Residue Burning, Sudipta Sarkar, Ramesh Singh, Akshansa Chauhan

Mathematics, Physics, and Computer Science Faculty Articles and Research

"Rice crop residue burning during mid-October to November every year is becoming a serious health threat because of increased burning by farmers in the states of Punjab, Haryana, and western Uttar Pradesh in northern India. Crop residue burning started in the late 1980s with the start of mechanised harvesting in Punjab. Farmers found burning to be an economical way of cleaning crop stalk residues that are left over by mechanised harvesters. In doing so, farmers ignore the impact of this practice on health and air quality in the cities located in the Indo-Gangetic Plains. In the winter season, the severity ...


Waste Stream And Green Purchasing Analysis At Bonneville Lock And Dam, Alexander Bienko 2018 Portland State University

Waste Stream And Green Purchasing Analysis At Bonneville Lock And Dam, Alexander Bienko

Master of Environmental Management Project Reports

The United States Army Corps of Engineers (USACE), Portland District, has jurisdiction on three locks and four dams in the Columbia River basin. These sites “contribute to a water resource management system that provides flood risk management, power generation, water quality improvement, fish and wildlife habitat and recreation on the Columbia River and some of its tributaries”. The Bonneville Lock and Dam (Bonneville Project) site lies on the Columbia River approximately 40 miles east from Portland, Oregon. Portions of the site have been declared a National Historic Landmark, from its origins in President Franklin D. Roosevelt’s New Deal program ...


Three Essays On The Economics Of Controlling Mobile-Source Episodic Air Pollution, Ramjee Acharya 2018 Utah State University

Three Essays On The Economics Of Controlling Mobile-Source Episodic Air Pollution, Ramjee Acharya

All Graduate Theses and Dissertations

Cache County and the Wasatch Front, Utah have persistently experienced some of the nation’s worst air quality over the past decade. Elevated PM2.5 concentrations during wintertime “red air day” episodes frequently exceed the National Ambient Air Quality Standards (NAAQS). We investigate the possible effects of two different economic policies in controlling these regional problems. Adapting a model originally developed to calculate the social investment necessary to control nationwide disease outbreaks, we estimate an optimal preventative capital stock (for example, investment in public transportation) of between $4.1 million and $14.1 million to control red air day episodes ...


Estimation Of The Relationship Between Satellite-Derived Vegetation Indices And Live Fuel Moisture Towards Wildfire Risk In Southern California, Kristen Whitney, Seung Hee Kim, Shenyue Jia, Menas Kafatos 2018 Chapman University

Estimation Of The Relationship Between Satellite-Derived Vegetation Indices And Live Fuel Moisture Towards Wildfire Risk In Southern California, Kristen Whitney, Seung Hee Kim, Shenyue Jia, Menas Kafatos

Mathematics, Physics, and Computer Science Faculty Articles and Research

Southern California possesses a Mediterranean climate having semi-arid to arid characteristics and contains shrubland areas at high risk to wildfire. To assess wildfire danger, fire agencies have been monitoring the moisture of vegetation, called live fuel moisture (LFM), using field-based sampling. Unfortunately, spatial and temporal resolution of live fuel moisture data are significantly limited because sampling is labor intensive. Remote sensing satellite data has been used to monitor vegetation moisture content and health of shrublands. Therefore, a potential approach to overcome the limitations of manual measurements of live fuel moisture is to use vegetation indices (VIs) derived from satellite data ...


Analysis Of Surface Soil Lead Contamination In Urban Neighborhoods Of Davenport, Iowa, Joseph Teresi 2018 Augustana College, Rock Island Illinois

Analysis Of Surface Soil Lead Contamination In Urban Neighborhoods Of Davenport, Iowa, Joseph Teresi

Celebration of Learning

Davenport, IA, is a typical Midwestern city with a population of ~102,600 residents and is characterized by aging infrastructure and housing stock. Consequently, alarmingly high rates of child lead poisoning—as a result of deteriorating lead paint—constitute a major public health concern in some urban neighborhoods. A research team conducted free home lead screenings in vulnerable Davenport neighborhoods to better understand the severity of the problem. Via appointment, 27 homes were tested for lead in their paint, dust, soil, and water. Many of the highest-risk homes were found in low-income neighborhoods. The purpose of this study was to ...


Air Pollution And Visitation At U.S. National Parks, David A. Keiser, Gabriel E. Lade, Ivan Rudik 2018 Iowa State University

Air Pollution And Visitation At U.S. National Parks, David A. Keiser, Gabriel E. Lade, Ivan Rudik

Economics Publications

Hundreds of millions of visitors travel to U.S. national parks every year to visit America’s iconic landscapes. Concerns about air quality in these areas have led to strict, yet controversial pollution control policies. We document pollution trends in U.S. national parks and estimate the relationship between pollution and park visitation. From 1990 to 2014, average ozone concentrations in national parks were statistically indistinguishable from the 20 largest U.S. metropolitan areas. Further, relative to U.S. cities, national parks have seen only modest reductions in days with ozone concentrations exceeding levels deemed unhealthy by the U.S ...


Ozone Pollution In Us National Parks Is Nearly The Same As In Large Cities, David Keiser, Gabriel E. Lade, Ivan Rudik 2018 Iowa State University

Ozone Pollution In Us National Parks Is Nearly The Same As In Large Cities, David Keiser, Gabriel E. Lade, Ivan Rudik

Economics Publications

Most Americans associate U.S. national parks with pristine environments that represent the very best of nature. In the 1916 law that established the National Park Service, Congress directed the new agency to “conserve the scenery and the natural and historic objects and the wild life therein and to provide for the enjoyment of the same in such manner and by such means as will leave them unimpaired for the enjoyment of future generations.”


Review Of Curbing Catastrophe: Natural Hazards And Risk Reduction In The Modern World, Kira H. Hamman 2018 Pennsylvania State University, Mont Alto

Review Of Curbing Catastrophe: Natural Hazards And Risk Reduction In The Modern World, Kira H. Hamman

Numeracy

Timothy H. Dixon. 2017. Curbing Catastrophe: Natural Hazards and Risk Reduction in the Modern World. (New York, NY: Cambridge University Press) 300 pp. ISBN 978-1108113663.

In Curbing Catastrophe, Timothy H. Dixon explores commonalities among natural disasters like Hurricane Katrina, the 2010 earthquake in Haiti, and the meltdown at Fukushima. He identifies communication failure between scientists and policy makers as a major culprit in the devastation that results from such events and offers strategies for improving that communication. He includes optional in-depth scientific and quantitative examinations of the events and the resulting devastation, making the book appropriate for use in teaching ...


Perils Of The Fungal Kingdom: Mycotoxins In Food And Feed, Adrianna Isobel Pribil 2018 Louisiana State University

Perils Of The Fungal Kingdom: Mycotoxins In Food And Feed, Adrianna Isobel Pribil

LSU Master's Theses

Humans and fungi have a complex relationship, especially in regards to the many fungal secondary metabolites that can be produced. When secondary metabolites are toxic to animals and humans they are defined as mycotoxins. Fungi can grow on crops pre-harvest and post-harvest, and have the potential to produce mycotoxins which occur regularly in animal feed and food for human consumption. In high doses, mycotoxins cause variety of problems that result in economic losses and extreme health issues. However, multiple mycotoxins will co-occur in nature and commonly occur in low doses. Thus chronic low daily doses of multiple mycotoxins overtime may ...


Sediment Deposition Within Two Thalassia Testudinum Seagrass Sites In Boca Del Drago, Bocas Del Toro Archipelago, Panamá, Alexander De Jesus 2018 SIT Study Abroad

Sediment Deposition Within Two Thalassia Testudinum Seagrass Sites In Boca Del Drago, Bocas Del Toro Archipelago, Panamá, Alexander De Jesus

Independent Study Project (ISP) Collection

Research Question

Does sediment deposition and composition differ between front and back areas of Thalassia testudinum seagrass beds within two sites on the coast of Boca del Drago, and do these two distinct sites have differences in relative seagrass density and above-ground biomass?

Research Objective

Understand how sediment deposition and sediment composition compare between front and back seagrass areas within two Thalassia testudinum seagrass meadows on the coast of Boca del Drago, and whether the density and above-ground biomass of seagrass identified in each of these two distinct sites also differs.


The Melting ‘Crown Of The Continent’: Visual History Of Glacier National Park, Dori L. Gorczyca, Salma Monani, Sarah M. Principato 2018 Gettysburg College

The Melting ‘Crown Of The Continent’: Visual History Of Glacier National Park, Dori L. Gorczyca, Salma Monani, Sarah M. Principato

Environmental Studies Faculty Publications

Glacier National Park (GNP), located in northwest Montana, US, was signed into existence on 11 May 1910 by then President William Howard Taft. Conservationist George Bird Grinnell was instrumental in lobbying for the park’s creation and negotiated the sale with the Blackfeet Indians. As an editor of the outdoor magazine Field and Stream, Grinnell learned about the region from writer James Willard Schultz and made his first visit there in 1885. Enticed and amazed by the glaciers of the area, the high Rocky Mountain alpine terrain, and the flora and fauna that thrived here, Grinnell advocated for the creation ...


De-Icers: What Is Safe For The Environment And Is Effective?, Dylan Walker 2018 Fort Richmond Collegiate

De-Icers: What Is Safe For The Environment And Is Effective?, Dylan Walker

The International Student Science Fair 2018

De-icers are a common chemical product that cities and homeowners across the world use to melt ice on the roads and around their home. The purpose of this experiment was to determine the effect of various de-icers on grass health and compare it to the efficiency from which these de-icers actually melt ice. This was done through placing pots of soil into separate containers each filled with a little bit of a different de-icer solution to test its effect on grass by measuring the percentage of green grass is left in each pot. The efficiency was tested by filling different ...


De-Icers: What Is Safe For The Environment And Is Effective?, Dylan Walker 2018 Fort Richmond Collegiate

De-Icers: What Is Safe For The Environment And Is Effective?, Dylan Walker

The International Student Science Fair 2018

The purpose of this experiment was to determine the affect that various de-icers (both organic and inorganic based) had on the health of grass, as well as determine the efficiency of the de-icer in melting ice to then compare and contrast the data to find the best overall de-icer in terms of effectiveness and environmental impact.


Assessing A Low-Cost Methane Sensor Quantification System For Use In Complex Rural And Urban Environments, Ashley Monika Collier-Oxandale, Joanna Gordon Casey, Ricardo Antonio Piedrahita, John Ortega, Hannah Halliday, Jill Johnston, Michael Hannigan 2018 University of Colorado Boulder

Assessing A Low-Cost Methane Sensor Quantification System For Use In Complex Rural And Urban Environments, Ashley Monika Collier-Oxandale, Joanna Gordon Casey, Ricardo Antonio Piedrahita, John Ortega, Hannah Halliday, Jill Johnston, Michael Hannigan

University Libraries Open Access Fund Supported Publications

Low-cost sensors have the potential to facilitate the exploration of air quality issues on new temporal and spatial scales. Here we evaluate a low-cost sensor quantification system for methane through its use in two different deployments. The first was a 1-month deployment along the Colorado Front Range and included sites near active oil and gas operations in the Denver-Julesburg basin. The second deployment was in an urban Los Angeles neighborhood, subject to complex mixtures of air pollution sources including oil operations. Given its role as a potent greenhouse gas, new low-cost methods for detecting and monitoring methane may aid in ...


Desalination Concentrate Disposal: Ecological Effects And Sustainable Solutions, Ryan Hanley 2018 University of Washington – Tacoma

Desalination Concentrate Disposal: Ecological Effects And Sustainable Solutions, Ryan Hanley

Global Honors Theses

Freshwater availability is a growing global concern, and desalination is often presented as the solution, but from this important technology comes issues of toxic waste. Ecosystems are delicate areas that contain species adapted to that specific location, and any chemical or physical changes can disrupt the fitness of species. The concentrate byproduct waste from desalination plants is toxic to species if the concentrate is not compatible with the receiving water body. A critical review of scientific articles, industry-leading books, conversations with industry experts, and information from the American Membrane Technology Association conference was used to analyze the current knowledge. Species ...


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