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Full-Text Articles in Physical Sciences and Mathematics

Clean Water Saves Lives: Improving Clean Water Access In Yeakpee Town, Liberia, Mishael F. Ohanwadi Oct 2023

Clean Water Saves Lives: Improving Clean Water Access In Yeakpee Town, Liberia, Mishael F. Ohanwadi

Student Publications

Civil unrest in Liberia, a West Coast African nation, has caused the destruction of essential infrastructure, particularly water, sanitation, and hygiene (WASH) systems. As a result, there is a high reliance on unsafe water sources and prevalence of waterborne diseases and health issues, particularly in the Yeakpee Town Community. Inadequate funding has hindered progress, and there are connections between gender inequalities and limited access to clean water. The Clean Water Save Lives project, launched in 2020, aimed to provide sustainable access to clean water in Yeakpee Town community by constructing a water pump with a filtration system. The project aimed …


Evaluating Potential Effects Of 2019 Australian Bushfires On Animal Species, Protected Land, And Land Cover, Alyssa J. Kaewwilai Apr 2020

Evaluating Potential Effects Of 2019 Australian Bushfires On Animal Species, Protected Land, And Land Cover, Alyssa J. Kaewwilai

Student Publications

The 2019-2020 Australian bushfire event had exceptionally dry, hot conditions as well as high potential impacts on the country’s wildlife and natural resources. The purpose of the study was to analyze the potential impacts of the 2019 Australian bushfire event on animal species, protected land, and varied land cover types. The research question of this project is: how does the location of the Australian Bushfires of 2020 potentially impact animal species, protected land and national parks, as well as different land covers? Raster calculator was used to combine and classify layers from the MODIS Burned Area Product of burned (1) …


Changes In The Greenland Ice Sheet Of The Southeastern Maniitsoq Coast From 1994-2004 And 2009-2019, Alyssa J. Kaewwilai, Charlie E. Reisman Oct 2019

Changes In The Greenland Ice Sheet Of The Southeastern Maniitsoq Coast From 1994-2004 And 2009-2019, Alyssa J. Kaewwilai, Charlie E. Reisman

Student Publications

Remote sensing mechanisms through the use of technology like the Landsat 5-7 Land Manager satellites are commonly used in conjunction with multispectral methods such as unsupervised classification to record and analyze changes in snow and ice over time in areas such as the Greenland Ice Sheet (GrIS). Unsupervised classification is a method of identifying, grouping, and labeling features in an image according to their spectral values and is therefore a good method of classifying snow and ice in areas such as Greenland. The goal of unsupervised classifications is to assign pixels into potentially meaningful subsurface classes based on similarities of …


Clearcutting In Appalachia: Impacts On Stream Water Quality In An Appalachian Watershed, Alyssa J. Kaewwilai, Hannah R. Peterson, Abigail F. Rec Oct 2019

Clearcutting In Appalachia: Impacts On Stream Water Quality In An Appalachian Watershed, Alyssa J. Kaewwilai, Hannah R. Peterson, Abigail F. Rec

Student Publications

Clearcutting forests has the potential to impact the water quality of high water headwater streams. In this study, we measured the effect of forest clearcut events on parameters of stream water quality within Michaux State Forest. The watershed of two streams included 2.1% and 11.6% of the total catchment in clearcuts, while the other 4 watersheds had no clearcuts. We measured pH, electrical conductivity, total suspended solids, and nitrate (ppm) and phosphate (ppm) concentrations from six different tributary streams. Mann-Whitney U tests maintain no statistical difference observed between pH (U= 4.00, p= 1.00), temperature (U=1.00, p=0.165), electrical conductivity (U=2.00, p=0.355), …


The Disparity Between Scientific Consensus And American Public Opinion Of Genetically Modified Organisms And Genetic Engineering, Matthew A. Cherubino Apr 2019

The Disparity Between Scientific Consensus And American Public Opinion Of Genetically Modified Organisms And Genetic Engineering, Matthew A. Cherubino

Student Publications

Genetically modified organisms (GMOs) and genetic engineering (GE) are accepted as safe and useful by the consensus of the scientific community. Their diverse utility has shown promise in addressing major challenges of the 21st century, including world hunger, global warming, and the prevalence of diet-related diseases (e.g. heart disease, cancer, diabetes, etc.). A 2014 Pew Research Center survey revealed that while 88% of scientists agreed that GM foods were safe to eat, only 37% of American consumers agreed. Furthermore, only 35% of U.S. adults trusted scientists to accurately inform the public about GMOs. To explain this disparity, I synthesize information …


G-Bikes: Gettysburg Bike Share, Matthew G. Palacio, Jeffrey J. Walters Oct 2018

G-Bikes: Gettysburg Bike Share, Matthew G. Palacio, Jeffrey J. Walters

Student Publications

The focus of this paper was to asses Gettysburg as possible location to implement a bike share program and ultimately to propose a framework for a successful program. We evaluated bike share programs across North America and created a list of criteria of successful programs. The second part of our data collection included a Google Forms survey which targeted three demographics, students, locals and tourists. We targeted our focus groups by posting on Facebook pages frequented by each demographic, as well as administering the survey in person with smart phones in Lincoln Square in Gettysburg. Our survey generated 134 responses, …


Crafting A Campus Sustainability Action Plan: A Grassroots Approach, Jolina A. Kenney Apr 2016

Crafting A Campus Sustainability Action Plan: A Grassroots Approach, Jolina A. Kenney

Student Publications

In recent decades, colleges and universities have taken a leadership role in developing institution-based Sustainability Action Plans (SAPs). A SAP includes a summation of past achievements, current initiatives, and the prioritized goals and implementation strategies for future action in terms of promoting environmental sustainability. These plans can also serve as pedagogical devices that teach students, staff and faculty important lessons of intentional living, global citizenship, and environmental responsibility. While many plans are adopted as top-down initiatives, there is great value in finding ways to engage the entire campus community in such endeavors at the grassroots level. This project documents a …


The Environment And Civil War: Exploring The Relationship Between The Environmental Performance Index And Incidence Of Internal Armed Conflict, Katerina N. Krohn Oct 2015

The Environment And Civil War: Exploring The Relationship Between The Environmental Performance Index And Incidence Of Internal Armed Conflict, Katerina N. Krohn

Student Publications

The state of the environment is receiving increasing attention. Environmental quality’s possible relationship to violent conflict attracts both popular and academic interest. Prior research has found support for the idea that environmental scarcity is related to higher occurrences of civil war. There have been few comprehensive quantitative studies regarding this relationship. This study tests a more general argument that higher environmental quality can lead to fewer occurrences of internal armed conflict. The study utilizes an environmental performance index found in the Quality of Government Standard Dataset to test its hypothesis. The study finds that the higher the environmental performance index …


Spatial And Temporal Relationships Between Forest Bird Declines And Prevalence Of The Hemlock Woolly Adelgid In The Northeastern United States, Julie E. Blum, Andrew M. Wilson Apr 2015

Spatial And Temporal Relationships Between Forest Bird Declines And Prevalence Of The Hemlock Woolly Adelgid In The Northeastern United States, Julie E. Blum, Andrew M. Wilson

Student Publications

The eastern hemlock (Tsuga canadensis) is a vital foundation tree species throughout the eastern United States, providing essential structural diversity and habitat for more than 120 different animal species. Within the past few decades, T. canadensis has undergone significant declines that are largely associated with the hemlock woolly adelgid (HWA; Adelges tsugae), an exotic, aphid-like insect native to East Asia. From the 1970s to present day, the HWA has spread throughout southern New England, large portions of the Mid-Atlantic region, and parts of Tennessee and the Carolinas. Research has shown that loss of the eastern hemlock is …


Green-Technology Automobiles: Can Modern Innovations Save The Environment And Consumers' Pockets, Nicholas M. Uline, Steven M. Mahon, Jason P. Potter Oct 2014

Green-Technology Automobiles: Can Modern Innovations Save The Environment And Consumers' Pockets, Nicholas M. Uline, Steven M. Mahon, Jason P. Potter

Student Publications

Cars of the past are notorious for poor fuel efficiency and high carbon emissions. With the presence of hybrid technology, along with a variety of other green innovations, many of these negative side effects can be mitigated. The purpose of this study is to answer the question: how do green technology vehicles compare with similar models that exclude such innovations in relation to efficiency and price? A total of 47 green-tech vehicles were identified and compared against their base model counterparts. Vehicle weight, horsepower, fuel efficiency and other variables were matched within pairs (green-tech vs. base) and between car types …


Dirty Recycling: Auto Salvage And Its Potential Impacts On Marginalized Populations, Ethan B. Dively, Nicholas C. Ferreri, Cole D. Rossiter May 2014

Dirty Recycling: Auto Salvage And Its Potential Impacts On Marginalized Populations, Ethan B. Dively, Nicholas C. Ferreri, Cole D. Rossiter

Student Publications

The salvage yard represents the final waypoint in the cradle-to-grave cycle of the automobile. Residual amounts of petroleum hydrocarbons, heavy metals, and acids used in automobiles can be extremely harmful to human health and the environment if not managed correctly. The purpose of this study was to assess the extent to which minority populations were exposed to the hazards of the auto salvage industry. Census data for population, income, race/ethnicity, sex, and age were organized using ArcGIS software. Population demographics were analyzed in the areas surrounding 98 auto salvage yards found in Philadelphia and Adams Counties, Pennsylvania. In Philadelphia County, …


Regimes And Resilience In The Modern Global Food System, Sara W. Tower May 2012

Regimes And Resilience In The Modern Global Food System, Sara W. Tower

Student Publications

Much public discourse surrounding the modern global food system operates on the assumption of the primary agency of individual consumers in ensuring an equitable and sustainable food supply. However, this approach fails to account for the larger structural forces of the system which frame the limits of how we interact with and are affected by our food system. Taking a closer look at the global economic, political, cultural, and environmental forces that have collectively shaped historical food regimes reveals the deeper structural patterns that currently determine how we produce, distribute, and consume food around the world. Due to the underlying …


Challenging The “Man” In Mangroves: The Missing Role Of Women In Mangrove Conservation, Alyssa L. Bosold Jan 2012

Challenging The “Man” In Mangroves: The Missing Role Of Women In Mangrove Conservation, Alyssa L. Bosold

Student Publications

Mangroves provide valuable ecosystem services including carbon sequestration, pollution filtration, and protection from tsunamis, tropical storms, and coastal erosion. They also supply coastal communities with important natural resources like firewood, medicine, timber, honey, and fodder for livestock. Unfortunately, the world’s mangroves are rapidly degrading due to rising coastal population, climate change, and destruction for coastal development, agriculture, and aquaculture. Considering their value for the environment and coastal communities, mangrove conservation should become a priority and effort must be invested to find new and successful methods for conserving mangrove ecosystems. As it has proven effective in other conservation contexts, a gendered …