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Articles 5821 - 5850 of 63129
Full-Text Articles in Entire DC Network
Oregon Community College Trustee Survey: A Look At The Role Of Ambition And Recruitment In Community College Board Members’ Decision To Run For Elected Office, Abby Lee
Boise State University Theses and Dissertations
Previous research on candidate emergence has typically focused on high-profile national and state offices. Absent from this topic is a focused interest in community college trustees and the factors contributing to their taking a trustee position, including their recruitment to a board (Mellow & Heelan, 2008). Through the lens of candidate ambition theory and political recruitment theory, this study investigated the demographics, characteristics, and perceptions of elected Oregon community college trustees concerning their recruitment and ambitions for service as board members. My research addressed the following three questions:
- What role, if any, does recruitment play in the decision to serve …
Impact Of Placement Disruption On School Outcomes In Maltreated Youth, Mallory Constantine
Impact Of Placement Disruption On School Outcomes In Maltreated Youth, Mallory Constantine
UNLV Theses, Dissertations, Professional Papers, and Capstones
School attendance is a crucial component of a youth’s ability to access resources and attain educational success. Maltreated youth are at increased risk for school absences, poor school performance, impairment in cognitive processes, and development of psychopathology. Disruption from their known systems (i.e., family, social, school) as a result of removal from home creates unique and substantial barriers for maltreated youth in attending and engaging in school. The present study used a sample of maltreated youth and binomial logistic regression analyses to determine if the number of lifetime placements impacts school outcome variables of school attendance, classroom behavior, and academic …
Explaining The Wealth Gap In Chattanooga Through Housing Policy Design: Do Chattanooga Housing Policies Contribute To The Wealth Gap?, Kendall Davis
Explaining The Wealth Gap In Chattanooga Through Housing Policy Design: Do Chattanooga Housing Policies Contribute To The Wealth Gap?, Kendall Davis
Honors Theses
Some scholars contend various public policies have continued to play a role in the creation and persistence of racial wealth inequalities particularly in housing. This thesis explains the wealth gap in Chattanooga through housing policy design and answers the question: Do Chattanooga housing policies contribute to the wealth gap? The thesis also explores local Chattanooga policies believed to influence the wealth gap such as the destruction of the Big Nine, the redevelopment of the Golden Gateway, and the many City of Chattanooga zoning codes (redlining). In addition, this thesis will examine federal policies that have contributed to the wealth gap …
Evolving Community Preparedness: Analysis Of United States Pandemic Health Disaster Readiness, Jessy Rugeyo
Evolving Community Preparedness: Analysis Of United States Pandemic Health Disaster Readiness, Jessy Rugeyo
Theses and Dissertations
The COVID-19 pandemic has shown substantial gaps in counties' preparedness and response capacity across the United States. This study analyzes the relationship between county-level pandemic preparedness and confirmed COVID-19 cases using secondary data from the FEMA's National Household Survey (NHS) and county-level COVID-19 data from the CDC. The data show a negative relationship between preparedness levels and COVID-19 positive rates, highlighting the necessity of proactive readiness measures. Individual risk assessment, motivation for preparedness, and socioeconomic variables have a major influence on confirmed cases. Higher levels of education, income, and preparedness are associated with lower positive rates, emphasizing the importance of …
Essays On Education And Labor Market Outcomes, Ishita Ahmed
Essays On Education And Labor Market Outcomes, Ishita Ahmed
Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–
This dissertation focuses on the labor market or educational outcomes using applied microeconomic methods. Chapter 1 investigates the impact of waiting an additional year to start kindergarten on the socioeconomic achievement gap in Nebraska using longitudinal administrative data from the Nebraska Department of Education. I utilize fuzzy regression discontinuity design to find the effect of waiting on test scores. I find waiting a year to improve the test score, and this impact fades away over time. This fading pattern shows a considerable amount of heterogeneity across different demographic groups, suggesting an acceleration of the achievement gap. The study also investigates …
Assessing The Impacts Of Cavs On A Coordinated Signalized Corridor, Ty David Mills
Assessing The Impacts Of Cavs On A Coordinated Signalized Corridor, Ty David Mills
Boise State University Theses and Dissertations
Connected Automated vehicles (CAVs) are growing in popularity and could have potential implications on the transportation system. The effects of CAVs have yet to be fully realized because of the newness of the technology. Anticipated effects include increased capacity, faster travel time, improved level of service, increased safety, and overall effectiveness of the transportation system. The Highway Capacity Manual (HCM) published by the Transportation Research Board of the National Academies has incorporated some of these impacts by developing capacity adjustment factors (CAFs) for various scenarios for freeway segments, signalized intersections, and roundabouts. This study builds upon the HCM study of …
Cerebrovascular Reactivity Mri As A Biomarker For Cerebral Small Vessel Disease–Related Cognitive Decline: Multi-Site Validation In The Markvcid Consortium, Peiying Liu, Zixuan Lin, Kaisha Hazel, George Pottanat, Cuimei Xu, Dengrong Jiang, Jay J. Pillai, Emma Lucke, Christopher E. Bauer, Brian T. Gold, Steven M. Greenburg, Karl G. Helmer, Kay Jann, Gregory Jicha, Joel Kramer, Pauline Maillard, Rachel M. Mulavelil, Pavel Rodriguez, Claudia L. Satizabal, Kristin Schwab, Sudha Seshadri, Herpreet Singh, Ángel G. Velarde Dediós, Danny J. J. Wang, Rita R. Kalyani, Abhay Moghekar, Paul B. Rosenberg, Sevil Yasar, Marilyn Albert, Hanzhang Lu
Cerebrovascular Reactivity Mri As A Biomarker For Cerebral Small Vessel Disease–Related Cognitive Decline: Multi-Site Validation In The Markvcid Consortium, Peiying Liu, Zixuan Lin, Kaisha Hazel, George Pottanat, Cuimei Xu, Dengrong Jiang, Jay J. Pillai, Emma Lucke, Christopher E. Bauer, Brian T. Gold, Steven M. Greenburg, Karl G. Helmer, Kay Jann, Gregory Jicha, Joel Kramer, Pauline Maillard, Rachel M. Mulavelil, Pavel Rodriguez, Claudia L. Satizabal, Kristin Schwab, Sudha Seshadri, Herpreet Singh, Ángel G. Velarde Dediós, Danny J. J. Wang, Rita R. Kalyani, Abhay Moghekar, Paul B. Rosenberg, Sevil Yasar, Marilyn Albert, Hanzhang Lu
Neurology Faculty Publications
INTRODUCTION: Vascular contributions to cognitive impairment and dementia (VCID) represent a major factor in cognitive decline in older adults. The present study examined the relationship between cerebrovascular reactivity (CVR) measured by magnetic resonance imaging (MRI) and cognitive function in a multi-site study, using a predefined hypothesis.
METHODS: We conducted the study in a total of three analysis sites and 263 subjects. Each site performed an identical CVR MRI procedure using 5% carbon dioxide inhalation. A global cognitive measure of Montreal Cognitive Assessment (MoCA) and an executive function measure of item response theory (IRT) score were used as outcomes.
RESULTS: CVR …
The Effects Of Grading Equity Practices On Students: Do Student Perceptions Of And Teachers’ Exposure To Grading Equity Practices Matter?, Sarah Ruth Morris
The Effects Of Grading Equity Practices On Students: Do Student Perceptions Of And Teachers’ Exposure To Grading Equity Practices Matter?, Sarah Ruth Morris
Graduate Theses and Dissertations
This dissertation critically examines grading practices within schools, tracing the evolution from traditional to modern approaches and highlighting the social dimensions and debates surrounding grading. Through a mixed-methods study spanning three empirical chapters, it explores students' and teachers' perceptions of grading practices, the impact of professional development (PD) on teachers' approaches to grading equity, and the resultant effects on student outcomes. Chapter Two reveals students' preferences for practices that recognize effort and support academic growth, alongside a tension between Pre-AP students' resistance and the support from students under high stress. Chapter Three finds that while PD can shift teachers' views …
Learning From Burning: Connecting Fire Managers And Fire Scientists, Coleman Lloyd Little
Learning From Burning: Connecting Fire Managers And Fire Scientists, Coleman Lloyd Little
All Theses
The fire community is one of transparency and learning, and embedded in its culture is an openness of sharing successes and failures in order to learn and adapt. United by a shared desire to effectively understand and utilize controlled burns to successfully extinguish wildfires and research their lasting effects, fire managers and fire scientists coexist in partnerships commonly referred to as knowledge exchange networks. This research examines one such network, the Consortium of Appalachian Fire Managers and Scientists (CAFMS), through the experiences of some of its members, serving to develop an understanding of how the consortium functions as a knowledge …
Health Professional Regulation And Provision Of Quality Health Services; Cross Sectional Analysis Of Private Health Care Providers In Wajir County, Kenya, Ali Ahmed Mohamed Qadar, Wanja Mwaura-Tenambergen, Eunice Muthoni, Luke Wahome Kinyua
Health Professional Regulation And Provision Of Quality Health Services; Cross Sectional Analysis Of Private Health Care Providers In Wajir County, Kenya, Ali Ahmed Mohamed Qadar, Wanja Mwaura-Tenambergen, Eunice Muthoni, Luke Wahome Kinyua
Population Health, East Africa
Background: Health professional regulatory bodies oversee and enforce standards in healthcare to safeguard patient safety and prevent harm. However, international consistency in these regulations remains limited. The Kenya health sector relies on various bodies to enforce standards among professionals and institutions, albeit constrained by financial and human resources that hinder effective oversight. This study aimed to assess how regulatory practicessuch as licensing, training oversight, inspection of practice, and quality assurance mechanisms- affect the quality of healthcare provided by private providers.
Methods: The study targeted 108 healthcare providers from 36 private health facilities, primarily nurses and clinical officers. A sample of …
Engaging Survivors In Transnational Justice Governance: Global, National And Local Perspectives From Uganda's Post Lra Insurgency, Dennis Jjuuko
Engaging Survivors In Transnational Justice Governance: Global, National And Local Perspectives From Uganda's Post Lra Insurgency, Dennis Jjuuko
Graduate Doctoral Dissertations
The end of the Second World War established the Nuremberg trials and the Tokyo tribunal while the United Nations (UN) system established ad-hoc tribunals in the former Yugoslavia and Rwanda, and multilateralism facilitated the creation of the present-day International Criminal Court (ICC). These trials and tribunals established liberal approaches to transnational justice governance. Despite the dominance of a liberal universalist justice framework, non-liberal justice approaches have also emerged. Considered as alternative customized justice structures, including South Africa’s Truth and Reconciliation Commission (TRC) and Rwanda’s Gacaca Courts, these community emergent approaches emphasize a transformative approach to addressing legacies of civil conflict …
Rural Oral Health Access Disparities In New York State, Renae Williams Atkinson Dmd, Ms, Stacy Mcilduff Cfre, Hayward Derek Horton Phd
Rural Oral Health Access Disparities In New York State, Renae Williams Atkinson Dmd, Ms, Stacy Mcilduff Cfre, Hayward Derek Horton Phd
The New York State Dental Journal
Disparities in access to dental care for those whose primary/only dental insurance is Medicaid is a known issue. The infamous case of 12-year-old Deamonte Driver from Maryland brought this great need for access to private dental care through Medicaid to the fore. Yet, to this date, there has been no resource to address this great need.
Dentists accepting Medicaid fall into two categories: those who practice in federally qualified health centers (FQHC), and those who practice privately. FQHCs are known anecdotally to have long waitlists, delaying access to needed care (as in the case of Driver). This is compounded by …
Anopas: Practical Anonymous Transit Pass From Group Signatures With Time-Bound Keys, Rui Shi, Yang Yang, Yingjiu Li, Huamin Feng, Hwee Hwa Pang, Robert H. Deng
Anopas: Practical Anonymous Transit Pass From Group Signatures With Time-Bound Keys, Rui Shi, Yang Yang, Yingjiu Li, Huamin Feng, Hwee Hwa Pang, Robert H. Deng
Research Collection School Of Computing and Information Systems
An anonymous transit pass system allows passengers to access transport services within fixed time periods, with their privileges automatically deactivating upon time expiration. Although existing transit pass systems are deployable on powerful devices like PCs, their adaptation to more user-friendly devices, such as mobile phones with smart cards, is inefficient due to their reliance on heavy-weight operations like bilinear maps. In this paper, we introduce an innovative anonymous transit pass system, dubbed Anopas, optimized for deployment on mobile phones with smart cards, where the smart card is responsible for crucial lightweight operations and the mobile phone handles key-independent and time-consuming …
Path-Choice-Constrained Bus Bridging Design Under Urban Rail Transit Disruptions, Yiyang Zhu, Jian Gang Jin, Hai Wang
Path-Choice-Constrained Bus Bridging Design Under Urban Rail Transit Disruptions, Yiyang Zhu, Jian Gang Jin, Hai Wang
Research Collection School Of Computing and Information Systems
Although urban rail transit systems play a crucial role in urban mobility, they frequently suffer from unexpected disruptions due to power loss, severe weather, equipment failure, and other factors that cause significant disruptions in passenger travel and, in turn, socioeconomic losses. To alleviate the inconvenience of affected passengers, bus bridging services are often provided when rail service has been suspended. Prior research has yielded various methodologies for effective bus bridging services; however, they are mainly based on the strong assumption that passengers must follow predetermined bus bridging routes. Less attention is paid to passengers’ path choice behaviors, which could affect …
Evaluating Conflict In Collaborative Environmental Governance: A Study Of Environmental Justice Councils, Graham Ambrose, Jangmin Kim, Saba Siddiki
Evaluating Conflict In Collaborative Environmental Governance: A Study Of Environmental Justice Councils, Graham Ambrose, Jangmin Kim, Saba Siddiki
Center for Policy Design and Governance
This brief summarizes "Evaluating conflict in collaborative environmental governance: A study of environmental justice councils," co-authored by Graham Ambrose, Jangmin Kim, and Saba Siddiki in the Policy Studies Journal.
American Rescue Plan Act (Arpa) Local Government Investments In Nevada, Sean Curry, Madison Dwyer, Caitlin J. Saladino, William E. Brown Jr.
American Rescue Plan Act (Arpa) Local Government Investments In Nevada, Sean Curry, Madison Dwyer, Caitlin J. Saladino, William E. Brown Jr.
Economic Development & Workforce
This fact sheet examines data from the Brooking Institution’s Local Government ARPA Investment Tracker, an online database that tracks the spending of American Rescue Plan Act (ARPA) State and Local Fiscal Recovery Fund dollars at the local government level. This fact sheet examines ARPA spending data from six Nevadan cities and counties: Washoe, NV; City of North Las Vegas, NV; City of Las Vegas, NV; City of Reno NV; City of Henderson, NV; and Clark County, NV.
A Cross-Country Analysis Of China’S Belt And Road Initiative, Leah Shoff
A Cross-Country Analysis Of China’S Belt And Road Initiative, Leah Shoff
International Studies (MA) Theses
China established The Belt and Road Initiative in 2013 to unite the global economy as well as bolter their own political and economic interests. Though the initiative is relatively new, it is important to understand how the Belt and Road Initiative could impact the global economy. This program is open to any country in the world that seeks to improve its infrastructure. However, critics of China’s proposal have questioned whether countries participating in the program gain economically. Through evaluating the relationship between GDP, time, and other significant data provided by the IMF, a cross-country comparison between Pakistan and the Philippines …
Cyber Threats, Cyber Risks, And Cybersecurity Responses: Modeling Whole-Of-Nation Strategy Implementation For American Organizations And Citizens, Vincent Leon Guerrero
Cyber Threats, Cyber Risks, And Cybersecurity Responses: Modeling Whole-Of-Nation Strategy Implementation For American Organizations And Citizens, Vincent Leon Guerrero
All Dissertations
Amid a landscape of cyber attacks on America occurring below the threshold of armed conflict, strategic national policy efforts recommend a whole-of-nation approach where individuals and public and private organizations increase their defensive posture in cyberspace. Motivation to address the risk of a cyber event includes a continuum of cyber threats that can range from low-level disruptive events to cybercrime and cyber espionage to the possibility of a potentially catastrophic attack on critical infrastructure. In this dissertation, I conduct a survey experiment of various cyber threat conditions and cyber policies to model cybersecurity responses, risk perceptions to a possible cyber …
Covid-19: Change In Adjusted Gross Income From Net Migration In Nevada, 2020-2021, Ayda Atici, Caitlin J. Saladino, William E. Brown Jr.
Covid-19: Change In Adjusted Gross Income From Net Migration In Nevada, 2020-2021, Ayda Atici, Caitlin J. Saladino, William E. Brown Jr.
Economic Development & Workforce
This fact sheet examines data on changes in taxable income and net average income as a result of net migration for each county in Nevada during the COVID-19 pandemic (from 2020 to 2021). The data illustrate which Nevada counties experienced increases in taxable income and average income, and which counties experienced losses. The data are retrieved from “Tax Data Reveals Large Flight of High Earners from Major Cities During the Pandemic,” an interactive data report by the Economic Innovation Group.
Disparities Surrounding The Availability Of Feminine Hygiene Products In The Workplace, Marlene Ventura
Disparities Surrounding The Availability Of Feminine Hygiene Products In The Workplace, Marlene Ventura
Electronic Theses, Projects, and Dissertations
Menstrual inequality in the workplace continues to exist, affecting financial welfare, mental health, physical health, and access to care. Women have been enduring disparities related to menstruation, including stigma, shame, and period poverty, which are often exacerbated in the workplace. This study aims to explore the experiences of women who do not have access to free feminine hygiene products in the workplace.
The researcher conducted one-to-one interviews in person with employed women (n=9). The questions were semi-structured and based on a survey with nineteen questions addressing areas of menstrual inequality in the workplace. Seven themes were identified: 1) work performance, …
Human Rights Violations Against Legal Immigrants In Minnesota, John Ewu
Human Rights Violations Against Legal Immigrants In Minnesota, John Ewu
Walden Dissertations and Doctoral Studies
Despite legal entitlements to protections under the International Bill of Human Rights, legal immigrants in Minnesota face human rights violations, including discrimination, harassment, and denial of essential services. These violations hinder their well-being, social integration, and economic stability, exacerbate existing disparities, and their ability to provide for their families and secure legal representation. The purpose of this study was to provide information that could be used in considering policy reforms to improve the treatment of immigrants in Minnesota. This was achieved by exploring how Mexican, Somali, and Hmong legal immigrants experienced human rights violations in Minnesota as a vulnerable population …
Mda At Your Service: My License Expired, And I’M Overwhelmed, Kristin Johnson Dds
Mda At Your Service: My License Expired, And I’M Overwhelmed, Kristin Johnson Dds
The Journal of the Michigan Dental Association
The Michigan Public Health Code allows a 60-day grace period for license renewal with late fees and CE requirements. For health insurance options, MDA Insurance provides assistance and quotes. Attend the MDA Health Insurance Seminar on Oct. 25 for more insights. Engage in organized dentistry via local society meetings, the MDA Leadership Forum, and the LEAD Program. MDA Insurance offers Medicare support, including educational events on Sept. 13 and 27. For more details, contact relevant MDA representatives.
Cultural Theory And Climate Change Risk Perceptions: Factors That Affect Support For Climate Change Mitigation Policy In Arkansas, Benjamin Galloway
Cultural Theory And Climate Change Risk Perceptions: Factors That Affect Support For Climate Change Mitigation Policy In Arkansas, Benjamin Galloway
Graduate Theses and Dissertations
This dissertation explores the intricate interplay between climate change perceptions, policy preferences, and the role of Cultural Theory in shaping public opinion. It begins by acknowledging the multifaceted impact of the climate crisis and emphasizing the critical importance of policy responses to mitigate its effects. Recognizing the diverse perspectives within the general public, the dissertation adopts a nuanced approach, leveraging Cultural Theory to investigate climate change risk perceptions and policy preferences. First, I examine disparities in fracking policy preferences between the general public and policy elites, employing Narrative Policy Framework-style narrative treatments. It reveals divergent responses to narrative elements, signaling …
Beyond Single Connections: An Exploration Of How Overlapping Networks Drive Policy Change Among State Legislators, Melanie B. Hoskins
Beyond Single Connections: An Exploration Of How Overlapping Networks Drive Policy Change Among State Legislators, Melanie B. Hoskins
Graduate Theses and Dissertations
Current research on policy diffusion and innovation primarily focuses on the policy idea as the unit of analysis. While diffusion studies incorporating social network theory often examine networks at the collective entity-level, they tend to neglect the actions of individual members. This study investigates how state legislators' exposure to novel policy ideas through their multiplex network ties influences their sponsorship of related bills and how legislators’ collaboration and coordination within these networks may significantly impact public policy outcomes. This three-article dissertation addresses three key areas by: 1) examining Arkansas legislators' participation within the American Legislative Exchange Council (ALEC) network; 2) …
Praying To Tiktok, Seeking The Self: How Rhetoric Reveals And Conceals The World’S Most Powerful Guru Of The Postindustrial Age, Samantha L. Gillespie-Hoffman
Praying To Tiktok, Seeking The Self: How Rhetoric Reveals And Conceals The World’S Most Powerful Guru Of The Postindustrial Age, Samantha L. Gillespie-Hoffman
Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–
Imagine a world where the most powerful leader is a wellness guru that runs an elaborate church with millions of followers. The guru is so powerful that everyone believes they can read minds and make ordinary people rich and famous. The guru controls forms of communication, media channels, consumer tastes, and what people eat, drink, say, and even think. What if this guru was not human but actually an algorithm? Does this sound like the plot of a science fiction novel? I argue that this scenario is closer to reality than most will admit. In this project, readers encounter a …
Presence Of Other People In Urban Parks: Exploring Psychological Effects Using Virtual Reality, Eye Tracking, And Qualitative Methods, Shuai Yuan
All Dissertations
Urban parks are essential public spaces that provide numerous benefits, but the presence of others can significantly influence these benefits. This dissertation explores the complex and context-dependent effects of the presence of other people on urban park experiences by drawing on diverse disciplinary perspectives and employing multiple methodological approaches, including theoretical synthesis, virtual reality, eye tracking, and qualitative methods.
Chapter 2 develops a comprehensive theoretical framework that bridges social psychology, environmental psychology, and practice-based fields. It categorizes the impacts of the presence of others on park users' experiences into perceptual, behavioral, cognitive-emotional, and symbolic domains. Chapter 3 utilizes virtual reality …
Fantastic Trolls And Where To Find Them: Problem Framing In The Defense Against The Informational Dark Arts, Jayson M. Warren
Fantastic Trolls And Where To Find Them: Problem Framing In The Defense Against The Informational Dark Arts, Jayson M. Warren
All Dissertations
In the wake of Russian interference in the 2016 U.S. presidential election, the notion of state-sponsored trolls engaging in information operations on social media has captured the attention of society. Yet eight years after this policymaking focusing event, sustainable solutions prove elusive and there is still much that is not known about the underlying phenomenon. This dissertation is part explanatory and part exploratory in its attempts to answer the overarching research question: What is the Relationship Between How the Problem of State-Sponsored Trolls on Social Media is Framed & the Way U.S. Federal Policy Attempts to Solve It? Using …
Forecasting Commercial Vehicle Miles Traveled (Vmt) In Urban California Areas, Steve Chung, Jaymin Kwon, Yushin Ahn
Forecasting Commercial Vehicle Miles Traveled (Vmt) In Urban California Areas, Steve Chung, Jaymin Kwon, Yushin Ahn
Mineta Transportation Institute
This study investigates commercial truck vehicle miles traveled (VMT) across six diverse California counties from 2000 to 2020. The counties—Imperial, Los Angeles, Riverside, San Bernardino, San Diego, and San Francisco—represent a broad spectrum of California’s demographics, economies, and landscapes. Using a rich dataset spanning demographics, economics, and pollution variables, we aim to understand the factors influencing commercial VMT. We first visually represent the geographic distribution of the counties, highlighting their unique characteristics. Linear regression models, particularly the least absolute shrinkage and selection operator (LASSO) and elastic net regressions are employed to identify key predictors of total commercial VMT. LASSO regression …
Assessing Gtfs Accuracy, Gregory L. Newmark
Assessing Gtfs Accuracy, Gregory L. Newmark
Mineta Transportation Institute
The promised benefits of the General Transit Feed Specification (GTFS) Schedule and Realtime standards are dependent on the underlying quality of the data. Despite this fundamental reliance, there has been relatively little research on techniques and strategies to assess GTFS accuracy. The need for such assessment is growing as federal and state governments increasingly require transit agencies to make these data available to the public. This research fills this gap by presenting a suite of methods and metrics to assess the temporal accuracy of GTFS Realtime and the spatial accuracy of GTFS Schedule feeds. The temporal assessment demonstrates an approach …
Time-To-Failure Prediction Of Fine-Grained Soil Slopes Subject To Weather-Driven Deterioration, Arm M. Morsy
Time-To-Failure Prediction Of Fine-Grained Soil Slopes Subject To Weather-Driven Deterioration, Arm M. Morsy
Mineta Transportation Institute
Embankments have been widely used in the construction of transportation and flood defense infrastructure. Embankments constructed from clays experience a suite of weather-driven deterioration processes that lead to a progressive loss of hydromechanical performance, causing potentially severe and costly consequences. This study aimed to predict the time to failure of aging, deteriorating clay embankments supporting transportation infrastructure. A multi-phase numerical modeling approach was developed to replicate the long-term, weather-driven, hydromechanical behavior of clay embankments. This model simulated the behavior of a number of well-documented embankment failure case studies that had sufficient data to derive the necessary soil properties and climate …