Digital Commons Network^™

Incorporating Awareness, Misinformation And Optimal Control In A Model Of Sars-Cov-2, Eric Numfor

Biology and Medicine Through Mathematics Conference

No abstract provided.

Information Feedback Delays Within Epidemic Models And Their Effect On Model Dynamics., Maria K. Bouka, Christopher Strickland Dr

Biology and Medicine Through Mathematics Conference

No abstract provided.

Reevaluation Of The Groundwater Monitoring Paradigm – Proof Of Concept Study, Jacob Gruzalski, Benjamin Adams, Bruce Hensel

World of Coal Ash Proceedings

Reevaluation of the Groundwater Monitoring Paradigm - Proof of Concept Study Authors Mr. Jacob Gruzalski - United States - Environmental Standards Mr. Benjamin Adams - United States - Environmental Standards Mr. Bruce Hensel - United States - Electric Power Research Institute Abstract Groundwater monitoring programs associated with coal combustion product (CCP) landfills and impoundments are long-term endeavors, continuing during active operation and for a post-closure period of 30 years or longer. This long-term groundwater monitoring represents a substantial financial expenditure by electrical power producers, with the bulk of the expenses being associated with the physical collection of the groundwater samples. …

Ccr Landfill Leachate Treatment Considerations, William Kennedy

World of Coal Ash Proceedings

CCR Landfill Leachate Treatment Considerations Authors Mr. William Kennedy - United States - Stantec Abstract The US Environmental Protection Agency (EPA) proposed new effluent limitations guidelines (ELGs) for coal combustion residual (CCR) leachate in March 2023. In this proposed rule, definitions of applicability and implementation deadlines were outlined in addition to establishing numeric limitations for arsenic and mercury. The proposed ELGs established mercury and arsenic numeric limitations based on chemical precipitation but EPA also queried the public whether more advanced treatment should be required as the technology basis. Stantec will discuss the status of the 2023 proposed leachate ELGs and …

Emerging Regulations And Operational Preparedness – Key Areas To Ensure Future Success For 2024 Elgs, Joseph Woodley, Morgan French

World of Coal Ash Proceedings

Emerging Regulations and Operational Preparedness – Key Areas to Ensure Future Success for 2023 ELGs Authors Mr. Joseph Woodley - United States - UCC Environmental Mr. Morgan French - United States - UCC Environmental Abstract This paper describes key areas for coal fired utilities to evaluate in an effort to optimize near-term daily operations and ensure operational readiness for potential regulatory changes that could impact existing processes, treatment technologies, and the ability to discharge certain waste streams. The topics covered include those specifically identified in EPA’s 2023 Effluent Limitation Guidelines Prepublication Rule along with a number of steps your organization …

Death To The Museum (As We Know It): A California Art And History Museum Designs A Different Cultural Exhibit, Caitlin Pambid

csuglobaljournal

Museums have stuck to traditional rules of focusing interpretation only on the object, having a single exceptional curator, and top-down dissemination of information. One California museum has created a different cultural exhibit that rejects all of these pillars to create an active museum. New Museum Los Gatos (NUMU Los Gatos) recently held an exhibition titled: Reclamation: Resilience of the Muwekma Ohlone Tribe. Collaborating with the Muwekma Ohlone, aboriginal to the San Francisco Bay Region, this exhibit spotlights and provides a platform for the Muwekma to the surrounding Los Gatos community who may not be aware of the local indigenous …

From Classroom To College: The Impact Of Educators Of Color On Long-Term Commitment Of Students Of Color, Haley Hayes

Education | Master's Theses

Research has shown that educators of color are essential for students of color to feel a sense of belonging and acceptance in their early developmental stages of education. According to Morgan (2019), “the findings of a recent study supported the idea that assigning teachers of color the same race leads to an increase in positive subjective assessments with regard to behavior and skills” (p.158). Prior research has considered issues that prevent people of color from becoming educators and/or remaining in the field, while also considering the environment and tools needed for educators of color to be successful in their jobs. …

Challenging Norms, Creating Art: An Anti-Ableist Lens On Visual Arts Education, Alexis Lino

Education | Master's Theses

This research explored the active role of disabled artists in their own descriptions of meaning making through their artistic process, utilizing phenomenological research to examine the lived experiences of intellectually or developmentally disabled and neurodiverse adult artists in the Bay Area. The literary study element of the research strove to understand and employ anti-ableism and constructivism as framing lenses, while also reviewing literature on issues such as access barriers, traditional quality standards in arts education, and the de-emphasis of art within curriculum funding priorities, indicating a need for continued reform toward promoting inclusive and process-oriented art education. With a focus …

Examining The Impact Of One-To-One Digital Technology Integration On Student Engagement And Academic Achievement In Elementary Education, Mark Loeffler

Education | Master's Theses

Advances in computer technology have rapidly changed the face of elementary education as we know it. These changes were exacerbated in 2020, when elementary education was forced into Emergency Remote Teaching due to the Covid 19 pandemic, and students across the globe were attending and participating in school using only computers. These developments in computers and learning technology have provided countless benefits for educators, however these changes have continued to progress at such a rapid pace, that parents, educators, and school administrators have struggled to keep up (van de Werfhorst, Kessenich, Geven, 2022).

The purpose of this thesis was to …

Enhancing School Culture Through Positive Behavioral Intervention Supports (Pbis) Training And Implementation: Insights From Teacher And Administrator Educators, Grazia Benedetti

Education | Master's Theses

Positive Behavioral Intervention and Supports (PBIS) is a comprehensive approach to fostering a positive school environment by supporting social behavior throughout the school community. The goal of PBIS is to enhance both educational and social achievements for all students. Research has indicated that successful implementation of school-wide practices requires initiation that includes administrative engagement, creation of a leadership team, and alignment with the school’s vision and mission (Cook & Odom, 2013). Administrator support and ongoing professional development were crucial for the success of positive behavior interventions. School-wide PBIS, described by Angus and Nelson (2019), was a proactive approach to teaching …

What's The Problem: Teacher Stress And Student Behavior, Emma Jaime

Education | Master's Theses

With student behavior and teacher stress being directly linked, there is a lack of insight into how teachers are managing that both in and out of the classroom (Clunies‐Ross, Little, & Kienhuis, 2008). This research highlights the impacts teachers have on their students, both positive and negative. It also offers insight into coping strategies teachers can use in order to maintain a positive classroom environment. I interviewed and collected reflective journals from four teachers with varied levels of experience and grade levels in a singular public elementary school. In the data collection process, common themes included personal and professional stressors, …

Effective Classroom Management Practices And The Training Needs For Beginning Educators, Hannah Sinclair

Education | Master's Theses

Driven by the overarching goal of enhancing classroom management practices and addressing the training and support needs of new educators, this qualitative research project aimed to uncover insights necessary for enhancing learning environments and improving teacher and student well-being. Conducted across diverse elementary school settings in California and Washington, the study engaged eleven elementary school teachers from varied backgrounds and experience levels, who were recruited through convenience and snowball sampling methods. Data included a combination of surveys and individual interviews, which were analyzed using an initial coding process to identify themes and a focused coding approach to refine and deepen …

Producing Alternative Scms Through Carbon Utilization, Dhwanil Trivedi, Dante Luu

World of Coal Ash Proceedings

Producing a High-Performance Low Carbon ASCM using Carbon Utilization Technology Authors Mr. Dhwanil Trivedi - United States - Carbon Upcycling Technologies Inc. Mr. Dante Luu - Canada - Carbon Upcycling Technologies Inc. Abstract In the current climate crisis, there is significant pressure on the cement and concrete industry to achieve net zero by 2050. Carbon Upcycling Technologies (CUT) has developed a patented technology to upcycle industrial byproducts into quality Alternative Supplementary Cementitious Materials (ASCM). One prominent Supplementary Cementitious Material (SCM) is Fly Ash (FA). However, the production of fresh fly ash is decreasing as companies move towards more environmentally friendly …

Life Cycle Impacts Of Harvested Coal Ash Used As Cement Replacement In Concrete, Sabrina Bradshaw, Craig Benson, Tuncer Edil

World of Coal Ash Proceedings

Life Cycle Impacts of Using Harvested Coal Ash as a Cement Replacement in Concrete Authors Ms. Sabrina Bradshaw - United States - University of Wisconsin-Madison Dr. Craig Benson - United States - University of Wisconsin-Madison Dr. Tuncer Edil - United States - University of Wisconsin-Madison Abstract Environmental benefits of using harvested coal ash as supplementary cementitious material (SCM) in concrete were evaluated using life cycle assessment. Global warming potential (GWP), energy consumed, and water used to harvest and process ashes from landfills and impoundments to meet ASTM C618 SCM criteria were quantified and compared with fresh ash. The life cycle …

Ccr Rule​ Utility Perspective ​2024 And Beyond, Harold Register, Daniel Chartier

World of Coal Ash Proceedings

Coal Combustion Residuals Rule: Utility Perspective Looking at 2024 and Beyond Authors Mr. Harold Register - United States - Consumers Energy Mr. Daniel Chartier - United States - Utility Solid Waste Activities Group (USWAG) Abstract Since the federal Coal Combustion Residuals (CCR) rule was first promulgated in April 2015, the self-implementing framework of the rule has undergone numerous changes. Initially, the Water Infrastructure Improvements for the Nation (WIIN) Act was signed into law in December 2016 authorizing the United States Environmental Protection Agency (US EPA) to implement a federal CCR permit program through rulemaking when appropriated, and extending authority to …

Ponded Ash Beneficial Use Investigation And Bid Solicitation, Adam Poffenberger

World of Coal Ash Proceedings

Ponded Ash Beneficial Use Investigation and Bid Solicitation Authors Mr. Adam Poffenberger - United States - AECOM Abstract In response to federal and state regulations pertaining to disposal of ponded coal ash, development of site investigations and data collection to facilitate development of bid solicitation packages for coal ash beneficial use as an alternative to landfilling has gained traction. Several considerations should be considered to ensure that the site investigation is completed safely and supports the collection of pertinent information for beneficial use vendors to assess the quality of ash and determine viability of beneficiation technologies and/or processes to produce …

Ccr Regulations Drive Uncertainty For Beneficial Use Projects Past And Present, Susan Jackson, Martha Thomsen, Dawn Santoianni

World of Coal Ash Proceedings

CCR Regulations Drive Uncertainty for Beneficial Use Projects Past and Present Authors Ms. Susan Jackson - United States - Haley & Aldrich Inc. Mrs. Martha Thomsen - United States - Baker Botts LLP Ms. Dawn Santoianni - United States - Haley & Aldrich Inc. Abstract EPA’s recent position on beneficial use (BU) in proposed Part A and Part B decisions, as well as the agency’s policy positions and proposed changes to the CCR regulations articulated in the agency’s Proposed Legacy Rule, have created uncertainty and concern for utilities and ash marketers. Understanding how the agency distinguishes between legitimate BU projects …

Ccr Landfill Reclamation For Beneficial Use, Brian Owens

World of Coal Ash Proceedings

CCR Landfill Reclamation for Beneficial Reuse – Lessons Learned and Practical Considerations Authors Mr. Brian Owens - United States - WSP USA Abstract It is not news that coal-fired power and the resulting coal combustion residual (CCR) generation is declining while the beneficial reuse demand remains strong. As this trend continues, energy companies are beginning to reclaim landfilled CCRs to supply the market with sellable-quality materials. Although reclaiming surface impoundment CCRs is also ongoing, reclamation of landfilled CCRs is expected to continue long after surface impoundments have been closed. The author will review lessons learned through reclaiming flue gas desulfurization …

Enhancing Electrical Network Vulnerability Assessment With Machine Learning And Deep Learning Techniques, M Mishkatur Rahman, Ayman Sajjad Akash, Harun Pirim, Chau Le, Trung Le, Om Prakash Yadav

Northeast Journal of Complex Systems (NEJCS)

This research utilizes advanced machine learning techniques to evaluate node vul-
nerability in power grid networks. Utilizing the SciGRID and GridKit datasets, con-
sisting of 479, 16,167 nodes and 765, 20,539 edges respectively, the study employs
K-nearest neighbor and median imputation methods to address missing data. Cen-
trality metrics are integrated into a single comprehensive score for assessing node
criticality, categorizing nodes into four centrality levels informative of vulnerability.
This categorization informs the use of traditional machine learning (including XG-
Boost, SVM, Multilayer Perceptron) and Graph Neural Networks in the analysis.
The study not only benchmarks the capabilities of these …

Protecting The Environment In Times Of Armed Conflict: The 2023 Elisabeth Haub Award For Environmental Law And Diplomacy Transcript, Nicholas Robinson

Pace Environmental Law Review

2023 Elisabeth Haub Award for Environmental Law and Diplomacy honoring Ambassador Marja Lehto of Finland and Former Ambassador Marie Jacobsson of Sweden for their pivotal roles advancing environmental law and policy to protect the environment in times of armed conflict.

When It Rains, It Pours: Weather Modification Law In The United States And A Proposal For Federal Control, Brendan Woodruff

Pace Environmental Law Review

Though weather modification has been used as a strategy to address issues such as drought throughout history, there continues to be a lack of federal regulation addressing weather modification. This Note surveys state regulations on weather modification and examines the current status of how the federal government addresses weather modification. Ultimately, this Note makes the case for why the Department of the Interior should take on the federal regulation of weather modification.

Protecting Public Land From Trespass: Why The Six-Year Statute Of Limitations In 28 U.S.C. § 2415(B) Is Appropriate For All Trespass Cases On Federal Land, Zach Fader

Pace Environmental Law Review

The United States has the authority to bring claims for trespass on federal land under the statutes of the state in which the trespass occurs. Many states have statutes that codify and often alter the elements of common law trespass while also providing for double or treble damages. Thus, in cases of trespass on federal lands, the government is incentivized to bring claims under state trespass statutes. Doing so adds an alternate theory of liability and maximizes the opportunity to recover adequate damages. 28 U.S.C. § 2415(b), in part, sets a six-year statute of limitations for when the United States …

Fighting Climate Gentrification In The Courts, Samantha Blend

Pace Environmental Law Review

Climate gentrification, a specific type of gentrification that occurs when the impacts of climate change displace lower-income communities, will likely increase in severity as climate change worsens. While policies such as inclusionary zoning may be the most efficient way to combat climate gentrification, litigation can fill gaps that may arise in such policies. This Note examines potential causes of action for climate gentrification litigation and their likelihood of success. Based on an examination of the different causes of action and their likelihood of success, this Note concludes that climate gentrification litigation can help legitimize the issue of climate gentrification and …

A Pilot Study On The Measurement Of Connectedness To Nature Around Nature Immersion With Green Exercise On Desert Trails, Dustin W. Davis, Elias M. Malek, Robert Salatto, Marcus M. Lawrence, Jacob W. Manning, Mark Debeliso, Merrill Russen Landers, Graham Mcginnis, James W. Navalta

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 5: Issue 1, Article 5, 2024. Studies have reported that non-exercise nature immersion (e.g., sitting) and green exercise increase connectedness to nature. The sitting was long, and the exercise was moderate-to-vigorous. And whether the scales used are valid and test-retest reliable is unclear. The main purpose of this study was to determine whether brief sitting and walking in green space affects connectedness to nature. The second purpose was to evaluate the concurrent validity of the Visual Analog Scale-Nature (VAS-N) with the Love and Care for Nature Scale (LCN). The third purpose was to …

Ccr Closure Cost Savings Through Nature-Based Solutions, John Watrous, Josh Running, Amanda Ludlow

World of Coal Ash Proceedings

Nature-based Solutions for CCR Closure Authors Mr. John Watrous - United States - Stantec Mr. Josh Running - United States - Stantec Ms. Amanda Ludlow - United States - Stantec Abstract Employing nature-based solutions (NbS) in CCR Unit closure can substantially reduce construction costs while supporting water treatment and management goals and investing in natural capital improvements. Real-world scenarios of natural capital development opportunities that support attaining carbon, biodiversity, and other environmental, social, and governance (ESG) goals are presented. Closure-by-Removal (CbR) is extremely expensive when compared to Closure-in-Place (CiP). The costs for CbR can be 400-1000% of CiP costs, which …

Tva Solar Installation On A Closed Ccr Unit, Steve Mayes, Kenneth Hughes, Shane Harris

World of Coal Ash Proceedings

TVA Solar Installation on a Closed CCR Unit Authors Mr. Steve Mayes - United States - Watershed Geo Mr. Kenneth Hughes - United States - Watershed Geo Mr. Shane Harris - United States - TVA Abstract As the Tennessee Valley Authority (TVA) is endeavoring to reduce its carbon levels 80% by 2035 and aspiring to be net-zero by 2050, it is exploring the buildout of 1,000 Megawatts (MW) of renewable solar power on closed CCR units throughout the Tennessee Valley in a project known as Project Phoenix. To vet out this potential and push towards this robust solar initiative becoming …

Sustainable Construction With Ccps - An Update For Europe -, Hans-Joachim Feuerborn, Fabrice Fayola

World of Coal Ash Proceedings

Sustainable construction with CCPs - an update for Europe - Authors Dr. Hans-Joachim Feuerborn - Germany - ECOBA Mr. Fabrice FAYOLA - France - Surschiste Abstract In Europe, the developments towards carbon neutrality by 2050 with impacts on fossil-fired production but also for construction materials and construction are finding it’s way. For fossil-fired energy and heat production this results in increased production by renewables and respectively discontinuous replacement production by coal power plants, and by this in availability issues for Coal Combustion Products (CCPs). For most member states phase-out dates have been published and some countries already phased-out. Although known …

Paper_Sustainable Construction With Ccps - An Update For Europe -, Fabrice Fayola, Joachim Feuerborn

World of Coal Ash Proceedings

In Europe, the developments towards carbon neutrality by 2050 with impacts on fossil-fired production but also for construction materials and construction are finding it’s way. For fossil-fired energy and heat production this results in increased production by renewables and respectively discontinuous replacement production by coal power plants, and by this in availability issues for Coal Combustion Products (CCPs). For most member states phase-out dates have been published and some countries already phased-out. Although known and used for decades, especially fly ash is subject of increasing interest for the production of carbon-reduced cement and concrete. The CCP production in coal-fired power …

Fix Or Fight- Epa’S Part A And Part B Groundwater Deficiency Findings, Kevin Solie, Kaela Nerhus, Jim Aiken

World of Coal Ash Proceedings

Fix or Fight: EPA’s Part A and Part B groundwater monitoring deficiency findings Authors Mr. Kevin Solie - United States - Barr Engineering Co. Ms. Kaela Nerhus - United States - Barr Engineering Co. Mr. Jim Aiken - United States - Barr Engineering Co. Abstract The EPA’s proposed and final CCR Rule Part A and Part B determinations are in essence denials, based largely on EPA’s evaluation of the adequacy of groundwater monitoring systems at the facilities. In almost all cases, EPA has found fault (often without accompanying supporting evidence) asserting various elements of the CCR Rule groundwater monitoring systems …

Tricky Constituents- Issues With Leachate And Groundwater Constituents Of Concern, William Kennedy

World of Coal Ash Proceedings

Tricky Constituents – Issues with Leachate and Groundwater Constituents of Concern Authors Mr. William Kennedy - United States - Stantec Abstract Certain parameters in wastewater are more problematic to treat than others. Some constituents of concern such as arsenic and mercury are amenable to chemical precipitation, given the correct conditions. Others such as lithium, boron, and molybdenum are much more problematic – both in terms of cost and complexity. For waters from pump and treat systems that produce discharges to surface waters, it is important to correctly identify the appropriate discharge concentrations. Certain groundwater or leachate constituents of concern do …