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Articles 121 - 150 of 620

Full-Text Articles in Physical Sciences and Mathematics

Mitigating Emissions Associated With The Production Of Traded Goods, Dan André Quirapas, Brian Irvyn Chan, Albert E. Lamberte, Maria Zunally Rapada, Krista Danielle Yu Dec 2021

Mitigating Emissions Associated With The Production Of Traded Goods, Dan André Quirapas, Brian Irvyn Chan, Albert E. Lamberte, Maria Zunally Rapada, Krista Danielle Yu

Angelo King Institute for Economic and Business Studies (AKI)

The environmental impact of international trade is a concerning issue in the fight against climate change. Trade liberalization—combined with globally fragmented environmental policies—is often associated with the formation of pollution havens. This is because trade enables emissions leakages, which is defined as the outsourcing of emissions-intensive production to countries with weaker environmental regulations. Therefore, literature on this subject has suggested that a globally coordinated policy response is necessary to mitigate the impact of trade on climate change (Aichele & Felbermayr, 2012; Ben-David et al., 2020; Felbmermayr & Peterson, 2020). However, some studies have found that unilateral policy actions have no …


A 60- Year Record Of The Demotechnic Index Of States, 1960-2019, Gavin James Kellough Dec 2021

A 60- Year Record Of The Demotechnic Index Of States, 1960-2019, Gavin James Kellough

Graduate Theses and Dissertations

A country’s dependency on energy resources can be interpreted through the calculation of energy indices. The Demotechnic Index (DI) was used to determine the trajectory of energy efficiency of each state in the United States over the period 1960-2019. The DI serves as a measure of the energy intensity of states and a proxy for energy sustainability of each state.The DI is the ratio of total energy use to total metabolic energy demand of a population. Mathematically, DI = (E_T-E_M)/E_M E_T represents the total energy used (metabolic energy + technological energy in kilojoules annually, kJ/y), while EM represents the basic …


First Person, Colby College, Lokesh Todi Nov 2021

First Person, Colby College, Lokesh Todi

Colby Magazine

No abstract provided.


Bolstering Juliana: Enforceability Of Environmental Claims Through International Treaty Obligations In U.S. Courts, Lindsey Laielli Nov 2021

Bolstering Juliana: Enforceability Of Environmental Claims Through International Treaty Obligations In U.S. Courts, Lindsey Laielli

St. Mary's Law Journal

Abstract forthcoming.


Management Changes And Strategies To Improve The Environmental Services From Grasslands In Northern China And Mongolia, David R. Kemp, J. Addison, K. Behrendt, G. Udval, D. Lkhagvaa, Guodong Han, Zhiguo Li, P. Li Oct 2021

Management Changes And Strategies To Improve The Environmental Services From Grasslands In Northern China And Mongolia, David R. Kemp, J. Addison, K. Behrendt, G. Udval, D. Lkhagvaa, Guodong Han, Zhiguo Li, P. Li

IGC Proceedings (1977-2023)

The grasslands of Mongolia and northern China are part of the vast Eurasian grasslands that extend from east Asia to eastern Europe, with many common problems. Grassland degradation and herder livelihoods in the steppe regions of China and Mongolia are widely acknowledged as major issues that need to be improved. The core problem is too many animals are now grazing grasslands, initially driven by significant policy changes, and decisions that assumed more animals would lift herder incomes. Problems are accentuated by poorly defined property rights over the land. The effectiveness of current Government Programs aimed at reducing grazing pressures has …


The Sandhill Crane State: A Naturalist’S Guide To Nebraska, Paul Johnsgard Oct 2021

The Sandhill Crane State: A Naturalist’S Guide To Nebraska, Paul Johnsgard

Zea E-Books Collection

This book includes the locations, descriptions, and points of biological, historical, geological, or paleontological interest of nearly 350 sites in Nebraska, most of which are free to access. Its 53,000 words include accounts of 9 state historical parks, 8 state parks, 2 national forests, 2 national monuments, and 7 national wildlife refuges as well as 181 wildlife management areas, 56 waterfowl production areas, and 54 state recreation areas. It also includes 48 state and county maps, 18 drawings, 33 photographs, and nearly 200 literature citations.

doi: 10.32873/unl.dc.zea.1305


Climatic Factors, Acid Detergent Fiber, Neutral Detergent Fiber And Crude Protein Contents In Digitgrass, C. S. Chen, S. M. Wang, Y. K. Chang Oct 2021

Climatic Factors, Acid Detergent Fiber, Neutral Detergent Fiber And Crude Protein Contents In Digitgrass, C. S. Chen, S. M. Wang, Y. K. Chang

IGC Proceedings (1977-2023)

Digitgrass (Digitaria Xumifolia) was treated according to a set of programmed harvest cycles to study the impact of climatic factors on the quality of the grass. It is found that seasonal changes have greater effect on the quality of the grass than does the length of the harvest cycle. The highest correlation coefficient (0.81) between the ADF content and accumulated temperature is attained when the base temperature is set to 15.5 , while the highest correlation coefficient (0.88) between CP and is attained at a base temperature of 15.0 . The determination coefficient of regression (R2 ) …


Analyzing Devops Teaching Strategies: An Initial Study, Samuel Ferino, Marcelo Fernandes, Anny K. Fernandes, Uirá Kulesza, Eduardo Aranha, Christoph Treude Oct 2021

Analyzing Devops Teaching Strategies: An Initial Study, Samuel Ferino, Marcelo Fernandes, Anny K. Fernandes, Uirá Kulesza, Eduardo Aranha, Christoph Treude

Research Collection School Of Computing and Information Systems

DevOps refers to a set of practices that integrate software development and operations with the primary aim to enable the continuous delivery of high-quality software. DevOps has also promoted several challenges to software engineering teaching. In this paper, we present a preliminary study that analyzes existing teaching strategies reported in the literature. Our findings indicate a set of approaches highlighting the use of environments to support teaching. Our work also investigates how these environments can contribute to address existing challenges and recommendations of DevOps teaching.


"Not In My Town": A Community's Response To Water And Soil Pollution, Karolina Staros Aug 2021

"Not In My Town": A Community's Response To Water And Soil Pollution, Karolina Staros

Dissertations

At the core of this dissertation is the acknowledgment that social movements are complex networks of people who face many obstacles in their efforts to achieve social change. One critique of social movements is that their goals and mission are limited to short term ideas and not long-term, systemic transformation. The lack of long term, systemic change can be observed when social movement groups mobilize for the same cause over and over again with what appears to be little progress over a period of time. The exact blueprint for a social movement’s success does not exist, but it is posited …


Intraday Stock Trading Using Reinforcement Learning: An Investigation Of Visual Representations Of Price, Kanak Tenguria Aug 2021

Intraday Stock Trading Using Reinforcement Learning: An Investigation Of Visual Representations Of Price, Kanak Tenguria

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In this study, we are developing a reinforcement learning-based strategy for the intraday trading of stocks. This study’s primary goals include developing an environment that can be used as a simulator for the day trading stock market and, train an agent to trade in this environment by performing actions and finding the optimal policy to maximize its reward.

This study also focuses on experimentation with different state representations to understand how data representation affects the learning system. We have experimented with three different state representations. All the representations focus on presenting the intraday stock data as images. We have chosen …


Urban Forests And Their Potential To Combat Food Insecurity: Analyzing Foods From Street Trees In New York City, Ny, Kristen Cooney Jul 2021

Urban Forests And Their Potential To Combat Food Insecurity: Analyzing Foods From Street Trees In New York City, Ny, Kristen Cooney

Environment and Sustainability Summer Fellows

There is growing recognition that urban forests have the potential to combat food insecurity via their edible parts, namely fruits, berries, and nuts. Many tree species commonly planted in urban spaces have edible parts that may fulfill the nutritional needs of city residents that are food insecure, but no one has analyzed the value of city street trees to understand this potential. I analyzed New York City’s street trees by each species and their edible parts to measure this potential.


Learning From The Seed: Illuminating Black Girlhood In Sustainable Living Paradigms, Toni Powell Powell Young Jul 2021

Learning From The Seed: Illuminating Black Girlhood In Sustainable Living Paradigms, Toni Powell Powell Young

USF Tampa Graduate Theses and Dissertations

The contemporary image of sustainable living presents a culturally narrow view of its participants and the manner of engaging in sustainable living paradigms. Through crystallization (Ellingson, 2009) I present a mixed methods approach that emphasizes participant observation, visual, mediated, and discursive analyses, as well as demonstrates the efficacy of Culture Centered Black Feminist Auto/Ethnography. This project seeks to highlight and place within historical context, the ways in which African American girls, who are largely left out of the prevailing image of sustainability, perform and articulate sustainability for themselves, in their homes, and throughout their home communities.

In their everyday lives, …


Comparative Study Of Leachate Characterization: Implication For Sustainable Environmental Management, Osakpolor Marvellous Omorogieva, Victory Itua Igberase Jul 2021

Comparative Study Of Leachate Characterization: Implication For Sustainable Environmental Management, Osakpolor Marvellous Omorogieva, Victory Itua Igberase

School of Earth, Environmental, & Marine Sciences Faculty Publications

Understanding the sources of environmental stressors, the role of geology, climate and technology would provide a guide to solving the problems posed by such stressor. The study examine the sources of wastes in Ikhueniro open dumpsite located in Benin city, Nigeria and characterize the leachate emanating from it. This will assist in adequate design of managerial scheme to tackle the menace posed by it while putting into consideration the role of geology, climate and technology. The key objectives are to carry out field study, characterize wastes in the dumpsite and collect raw leachate emanating from the wastes heap in order …


Grazing Practices And Rangeland Conservation: Towards Output‐Based Contracts To Improve Relevance And Enhance Technical Innovation, Cyril Agreil, Jocelyn Haskell, John Haskell, Michel Meuret, Fred Provenza Jul 2021

Grazing Practices And Rangeland Conservation: Towards Output‐Based Contracts To Improve Relevance And Enhance Technical Innovation, Cyril Agreil, Jocelyn Haskell, John Haskell, Michel Meuret, Fred Provenza

IGC Proceedings (1977-2023)

No abstract provided.


Internal And External Factors’ Influence On Recycling: Insights From A Laboratory Experiment With Observed Behavior, Nooh Linder, Sonny Rosenthal, Patrik Sorqvist, Stephan Barthel Jul 2021

Internal And External Factors’ Influence On Recycling: Insights From A Laboratory Experiment With Observed Behavior, Nooh Linder, Sonny Rosenthal, Patrik Sorqvist, Stephan Barthel

Research Collection College of Integrative Studies

Internal psychological factors, such as intentions and personal norms, are central predictors of pro-environmental behavior in many theoretical models, whereas the influence from external factors such as the physical environment is seldom considered. Even rarer is studying how internal factors interact with the physical context in which decisions take place. In the current study, we addressed the relative influence and interaction of psychological and environmental factors on pro-environmental behavior. A laboratory experiment presented participants (N = 399) with a choice to dispatch a used plastic cup in a recycling or general waste bin after participating in a staged “yogurt taste …


A Research Of The Living Environment In The Pasturing Area, Yajuan Guo, Yong Gao, Xu Sun Jun 2021

A Research Of The Living Environment In The Pasturing Area, Yajuan Guo, Yong Gao, Xu Sun

IGC Proceedings (1977-2023)

No abstract provided.


Environmental, Health And Safety Intricacies Of Artisanal Mining In The Gold-Rich Landscapes Of Karamoja, North-Eastern Uganda, Eria Serwajja, Paul Isolo Mukwaya Jun 2021

Environmental, Health And Safety Intricacies Of Artisanal Mining In The Gold-Rich Landscapes Of Karamoja, North-Eastern Uganda, Eria Serwajja, Paul Isolo Mukwaya

Journal of Sustainable Mining

Artisanal small-scale gold mining presents opportunities for Uganda’s rural poor. However, it also poses serious environmental, health and safety challenges. A suite of data collection methods including interviews, focus groups discussions, water and soils sampling were used to examine the perceptions of miners on the status, prevalence and extent of mercury use in artisanal gold mining, mercury transit routes and toxicity levels of soils and water in Karamoja sub-region. It also explores the health, safety and environmental implications of artisanal small-scale gold mining in the sub-region. The findings show that trade and access to mercury is widespread; although trade in, …


Sound In Video Games: How Sound Is An Important Aspect Of The Virtual Experience, James Boen May 2021

Sound In Video Games: How Sound Is An Important Aspect Of The Virtual Experience, James Boen

ART 108: Introduction to Games Studies

This paper will take the form of an analysis, with video games as the medium/text that will be analysed. Although analysis is typically reserved for poems, books, short stories, or plays, video games are simply a form of conveying ideas and a form of text that is representative of the 21st century. Video games is a rare medium that has an interactive element, which can alter/enhance the experience an audience member can have, even if there were the same audio/visual components in a film or play. In most forms of media with an audio component, the analysis is done by …


International Migration From The Latin American-Caribbean Region: Taking Environmental Indicators Into Consideration, Chelsea Wepy May 2021

International Migration From The Latin American-Caribbean Region: Taking Environmental Indicators Into Consideration, Chelsea Wepy

Student Theses and Dissertations

International migration, the act of leaving one’s country to permanently settle in another country, is driven by many socio economic/political factors, such as lack of economic opportunity, access to education, governmental corruption, and violence. These factors have proven to be the reason that many citizens within the Latin American-Caribbean region either choose or are forced to relocate internationally. While these factors are important to consider independently; these issues are often exacerbated by changes in the natural environment. The objective of my paper is to highlight the importance of considering changes in the natural environment. In doing so, I hope to …


Toward A More Holistic Worldview: Environmental Values In Context, Erica Lynne Walters May 2021

Toward A More Holistic Worldview: Environmental Values In Context, Erica Lynne Walters

Undergraduate Honors Thesis Collection

This study extensively examines the formation of pro-environmental behaviors as mediated by the Value-Belief-Norm (VBN) Theory. Using this theoretical framework, qualitative, in-depth interviews were conducted with a small number of Butler University students (n=10). The findings of the data collection demonstrate the limitations of the VBN Theory when applied to pro-environmental behavior. Data analysis demonstrates the role that formative experiences, environmental education, and connectedness to nature can play as intervening influences in the linear translation posited by the VBN Theory. Moreover, the confluence of various values that emerged among research participants suggests the need for a more holistic value orientation …


A Comparison Of The Environmental Effects Of Renewable And Non-Renewable Energies, Jordan Moore May 2021

A Comparison Of The Environmental Effects Of Renewable And Non-Renewable Energies, Jordan Moore

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

This study presents current energy data from the United States and data from literature reviews to create life cycle assessments (LCA) for comparing the environmental impacts of wind and coal-fired energy generation and use. The environmental impacts were evaluated using emissions data, principally carbon dioxide emissions and carbon dioxide equivalents from methane. Other environmental impacts such as avian mortality and land use were compared as well. The LCA includes four phases: raw materials, transportation, use/retail, and waste. Overall, wind energy has a smaller environmental impact than coal-fired energy for the raw materials, transportation, use/retail, and waste phases. Wind energy resulted …


Effectiveness Of Plastic Ordinances In Santa Monica, Ca: Do Regulations At The Municipal Level Reduce Plastic Waste?, John W. Hayes Apr 2021

Effectiveness Of Plastic Ordinances In Santa Monica, Ca: Do Regulations At The Municipal Level Reduce Plastic Waste?, John W. Hayes

School of Public Policy Capstones

Plastic is a cheap, robust and versatile material with numerous practical uses that contribute to the convenience of modern day life. However the very same properties that make it uniquely diverse and hardy also contribute to the hazards it poses to the ecosystems and human health. If current consumption and manufacturing practices remain unchanged, there will be hundreds of millions of additional tons of plastic introduced into the environment over the coming decades. To mitigate this issue, some cities, such as Santa Monica, have implemented ordinances and policies directly aimed at this growing problem, albeit with ambiguous results. To better …


Associations Between Family-Based Stress And Dietary Inflammatory Potential Among Families With Preschool-Aged Children, Valerie Hruska, Nitin Shivappa Mbbs, Mph, Ph.D., James R. Hébert Scd, Alison M. Duncan, Jess Hines, David W. L. Ma Apr 2021

Associations Between Family-Based Stress And Dietary Inflammatory Potential Among Families With Preschool-Aged Children, Valerie Hruska, Nitin Shivappa Mbbs, Mph, Ph.D., James R. Hébert Scd, Alison M. Duncan, Jess Hines, David W. L. Ma

Faculty Publications

Chronic stress is known to influence dietary choices, and stressed families often report poorer diet quality; however, little is known about how family-based stress is linked with dietary patterns that promote inflammation. This study investigated associations between family-based stress and the inflammatory potential of the diet among preschool-aged children and their parents. Parents (n = 212 mothers, n = 146 fathers) and children (n = 130 girls, n = 123 boys; aged 18 months to 5 years) from 241 families participating in the Guelph Family Health Study were included in the analyses. Parents reported levels of parenting distress, depressive symptoms, …


Diversity – Independent Factors Predict Elevated Extinction Rates, Dustin Perriguey, Corinne Myers, Jason Moore, Louis Scuderi Apr 2021

Diversity – Independent Factors Predict Elevated Extinction Rates, Dustin Perriguey, Corinne Myers, Jason Moore, Louis Scuderi

Earth and Planetary Sciences ETDs

Multiple linear regression was used to determine the relationships between diversity-independent factors (i.e., abiotic, climatic) 2, 5, and 10 Myrs-prior to the most elevated Phanerozoic extinctions. We constructed five abiotic variables from Phanerozoic proxy records1–5 to compare to extinction rates: mean temperature, temperature instability, carbon cycle instability, continental weathering rates, and habitat instability. All three models were statistically significant (P < 0.05) and explained > 70% of the variation in Alroy’s6 three-timer generic extinction rates. However, the 2 Myr-prior model explained the most variance in extinction rates and had the most predictive power, based on adjusted and predictive R2 (~ 72% and 41%, respectively). Carbon …


Diversity – Independent Factors Predict Elevated Extinction Rates, Dustin Perriguey Apr 2021

Diversity – Independent Factors Predict Elevated Extinction Rates, Dustin Perriguey

Earth and Planetary Sciences Faculty and Staff Publications

Multiple linear regression was used to determine the relationships between diversity-independent factors (i.e., abiotic, climatic) 2, 5, and 10 Myrs-prior to the most elevated Phanerozoic extinctions. We constructed five abiotic variables from Phanerozoic proxy records1–5 to compare to extinction rates: mean temperature, temperature instability, carbon cycle instability, continental weathering rates, and habitat instability. All three models were statistically significant (P < 0.05) and explained > 70% of the variation in Alroy’s6 three-timer generic extinction rates. However, the 2 Myr-prior model explained the most variance in extinction rates and had the most predictive power, based on adjusted and predictive R2 (~ 72% and 41%, respectively). Carbon …


The Economic And Environmental Effects Of Recycling Plastic In South Carolina, Sophia Gouhin Apr 2021

The Economic And Environmental Effects Of Recycling Plastic In South Carolina, Sophia Gouhin

Senior Theses

The state of South Carolina generated 4,809,041 tons of municipal solid waste during the fiscal year of 2019 (July 1, 2018 to June 30, 2019). During this same period, the state maintained an average municipal solid waste recycling rate of 28.2% (Toomey, 2019b). This thesis gives an in-depth look in to the economic and environmental effects of recycling, specifically plastic, in South Carolina. I have researched and analyzed the process, capabilities, and impact of recycling plastic in South Carolina. This includes all seven types of plastic as classified by their chemical makeup. In addition, I surveyed South Carolina residents to …


Fate Of Persistent Contaminants And Emerging Algal Toxins In Drinking Water And The Environment, Danielle Christine Westerman Apr 2021

Fate Of Persistent Contaminants And Emerging Algal Toxins In Drinking Water And The Environment, Danielle Christine Westerman

Theses and Dissertations

Population growth and global climate change has resulted in the degradation of pristine water sources, causing issues like saltwater intrusion, persistent harmful algal blooms, and drought from population growth. Future reliance on alternative sources of drinking water to is expected globally, therefore, nontraditional sources of drinking water are becoming increasingly vital sources of potable water around the world. For example, desalination (typically by reverse osmosis), despite its high energy demands and high cost, is being utilized all over the world to meet drinking water demand. Wastewater reuse, the additional treatment of wastewater to produce drinking water, either directly or indirectly, …


Environmental Efficiency In Mixed Crop Livestock Farming In India, K. A. C. H. A. Kothalawala, S. Kumar, H. Kothalawala Feb 2021

Environmental Efficiency In Mixed Crop Livestock Farming In India, K. A. C. H. A. Kothalawala, S. Kumar, H. Kothalawala

IGC Proceedings (1977-2023)

No abstract provided.


We All Want To Change The World: How Behavioral Insights Can Help Reduce Carbon Emissions, Thomas C. Gifford Jan 2021

We All Want To Change The World: How Behavioral Insights Can Help Reduce Carbon Emissions, Thomas C. Gifford

Electronic Theses and Dissertations

The world is in the midst of an unprecedented environmental crisis driven primarily by human behavior. As the world has globalized, countries have developed, and standards of living have improved, global pollution has skyrocketed and has resulted in a wide range of environmentally destructive outcomes. All paths to environmentally sustainable development involve a dramatic cut in carbon emissions from current day levels. In this thesis, I explore how the omission of behavioral factors from mainstream neoclassical models has contributed to, and can aid in reducing unsustainably high levels of carbon emissions. Throughout the history of economic thought, classical economists such …


Predicting College Students’ Future Intentions To Engage In Public-Sphere Water Conservation Behaviors, Austin Wise, Donald Johnson, George Wardlow, Kathi Jogan Jan 2021

Predicting College Students’ Future Intentions To Engage In Public-Sphere Water Conservation Behaviors, Austin Wise, Donald Johnson, George Wardlow, Kathi Jogan

Department of Earth and Atmospheric Sciences: Faculty Publications

The purpose of this study was to describe selected college students’ (N = 252) perceptions of and future intentions (FI) to engage in public-sphere water conservation behaviors, and to determine if FI could be predicted by a single or linear combination of student demographic characteristics and latent variables. A majority of respondents agreed a growing population will negatively affect water quantity (90.5%) and there is a need for water resource management (85.6%). A majority disagreed or strongly disagreed that they (53.4%), their family (57.1%), or their friends (67.5%) practiced water conservation, or that people in their hometowns were concerned about …