Open Access. Powered by Scholars. Published by Universities.®

Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 14041 - 14070 of 713423

Full-Text Articles in Social and Behavioral Sciences

Hand In Hand, Winter 2023 Dec 2023

Hand In Hand, Winter 2023

Hand in Hand

A newsletter published for Deaf Catholics in Milwaukee, WI

Hand in Hand Finding Aid


Using Fiber-Optic Reflectance Spectroscopy (Fors) To Identify Human Decomposition Fluid Characteristics In Plant Leaves And Soil, Anielle Duncan Dec 2023

Using Fiber-Optic Reflectance Spectroscopy (Fors) To Identify Human Decomposition Fluid Characteristics In Plant Leaves And Soil, Anielle Duncan

Masters Theses

Anthropologists may be asked by law enforcement or family members to assist in the search for missing deceased individuals. The search areas are often in harsh, rugged terrain for which some technologies, such as ground penetrating radar, cannot be used. Fiber-optic reflectance spectroscopy (FORS) is a portable instrument that can collect information on plants and soil in the surrounding environment, even in austere environments. This study aimed to test whether FORS could be used to identify decomposition fluid in nearby plants and soil in the visible near-infrared (VNIR) and short-wave infrared (SWIR) spectral regions. Using FORS to analyze the spectral …


Burned But Not Forgotten: Foodways Analysis Of Cooking Spaces From The First Kitchen On Thomas Jefferson’S Monticello Plantation, Peggy Marie Humes Dec 2023

Burned But Not Forgotten: Foodways Analysis Of Cooking Spaces From The First Kitchen On Thomas Jefferson’S Monticello Plantation, Peggy Marie Humes

Masters Theses

This thesis research evaluates the macrobotanical assemblage identified in soil samples from contexts collected throughout the South Pavilion kitchen space (44AB089) at Thomas Jefferson’s Monticello plantation in Charlottesville, Virginia. My primary research objectives strive to establish what types of plant remains are represented in soil samples recovered from three stratigraphically assigned temporal periods in this late eighteenth-century kitchen space. As the first kitchen at Monticello, where enslaved cooks prepared meals influenced by African American and French dishes for the Jefferson family until 1809, this site can help better establish an understanding of the cultural foodways and dishes within this time …


Digital Public Library Ecosystem 2023, Rachel Noorda, Kathi Inman Berens Dec 2023

Digital Public Library Ecosystem 2023, Rachel Noorda, Kathi Inman Berens

English Faculty Publications and Presentations

The Digital Public Library Ecosystem is the network of digital book collection and circulation specifically through public libraries. Digital book collection and circulation have never been more important than they are today. Nearly 1 in 3 Americans has read an ebook in the last 12 months. Audiobook listening is also high; nearly 1 in 4 Americans has listened to an audiobook in that same time period. Libraries are one way in which readers gain access to ebooks and audiobooks. Despite this, a holistic view of the digital library ecosystem is largely opaque. Three factors contribute to current confusion about the …


Rebel Legitimacy: A Theory On Battle Intensity, Brooke A. Golden Dec 2023

Rebel Legitimacy: A Theory On Battle Intensity, Brooke A. Golden

Masters Theses

Why do some rebel groups experience more intense fighting during civil war than others? This paper examines the relationship between rebel legitimacy and battle intensity. Existing literature has much to say about the various variables that influence battle intensity; however, this paper will incorporate two causal mechanisms of rebel legitimacy that are often overlooked or understudied in the civil war literature that explores battle intensity. The two causal mechanisms are: the number of civilian deaths and the level of rebel governance. This study is unique in the way it challenges our current understanding of battle intensity through these mechanisms. This …


Assessing The Impact Of The Tennessee Equine Industry, Olivia Watson Dec 2023

Assessing The Impact Of The Tennessee Equine Industry, Olivia Watson

Masters Theses

The Tennessee equine industry is alive and prevalent across the entire state. However, due to the expansiveness of the industry, lack of consistent record keeping, and large discrepancies among reporting agencies, it has proven to be difficult to accurately account for the total impact of the industry in terms of population, demographics, and overall economic impact. The objective of this study was to 1) determine population demographics and economic impact of the equine industry in Tennessee and 2) determine the public perception on the addition of live equine racing within the state. An anonymous, online assessment was developed (March-August 2022; …


Factors Associated With Caregiver Responsive And Non-Responsive Feeding Styles In Clark County, Nevada, Amanda Castelo Saragosa Dec 2023

Factors Associated With Caregiver Responsive And Non-Responsive Feeding Styles In Clark County, Nevada, Amanda Castelo Saragosa

UNLV Theses, Dissertations, Professional Papers, and Capstones

Early childhood obesity has increased significantly over the last few decades, reaching epidemic levels in the United States. Many interventions exist to alleviate early childhood obesity; however, little focus is on preventing obesity-related risks for children under two. High-quality child-caregiver interactions are deemed critical for preventing early childhood obesity development, but there is little information on the socio-ecological factors that influence a caregivers' feeding styles. This study examined socio-ecological factors associated with caregivers' feeding styles (responsive vs. non-responsive) for infants under two in Clark County, Nevada. This cross-sectional study utilized a survey targeted to caregivers (18 and older) with infants …


Unraveling Water Quality Issues In The Colorado River Basin: Utilizing Remote Sensing Satellite Images, Statistical, And Machine Learning For Improved Monitoring, Godson Ebenezer Adjovu Dec 2023

Unraveling Water Quality Issues In The Colorado River Basin: Utilizing Remote Sensing Satellite Images, Statistical, And Machine Learning For Improved Monitoring, Godson Ebenezer Adjovu

UNLV Theses, Dissertations, Professional Papers, and Capstones

This research was aimed at exploring innovative and cost-effective tools in understanding the spatiotemporal variability of water quality parameters in the Colorado River Basin (CRB), which includes the Colorado River and major reservoirs and lakes in the USA including Lake Mead. The river which arises in the state of Colorado and empties into the Republic of Mexico at the Gulf of California, is a source of water to seven US states and the Republic of Mexico and provides water to about 40 million people and million acres of farmlands in seven states in the western US and the Republic of …


“And I’M Going To Destroy You.”: Persona And Gender Performativity In Ernest Hemingway’S The Garden Of Eden, Nicole Minton Dec 2023

“And I’M Going To Destroy You.”: Persona And Gender Performativity In Ernest Hemingway’S The Garden Of Eden, Nicole Minton

UNLV Theses, Dissertations, Professional Papers, and Capstones

While debate of Ernest Hemingway’s authorial masculine persona in connection to The Garden of Eden has been a point of interest in literary scholarship, no single work has tied together theory of gender performativity to persona. A borderline parodic display of masculine adventure has encouraged a one-dimensional view of Hemingway, who is viewed by audiences as the pinnacle of masculinity. However, this image is complicated by the publication of Eden, which reveals an author interested in gender and sexual identity fluidity. Rarely has a single text called into question so controversially an author’s public image. Eden showcases an empathetic …


Examining Oppressive Social Systems: Activism, Academics And Alpha Males, Kristin Dee Vierra Dec 2023

Examining Oppressive Social Systems: Activism, Academics And Alpha Males, Kristin Dee Vierra

UNLV Theses, Dissertations, Professional Papers, and Capstones

Oppressive social systems are structures and institutions within society that systematically and unjustly restrict the rights, opportunities, and overall well-being of certain groups (Bonilla-Silva, 1997; Feagin, 2013). The current program of research aims to investigate how oppressive social systems impact individuals and explore strategies to address and counteract them. The first paper seeks to understand whether, why, and how people engage in critical action to support Black Lives Matter (BLM). The second paper examines undergraduates' perceptions of whether STEM research mentors should consider race when mentoring students from marginalized backgrounds. The final paper employs a meta-synthesis with the purpose of …


Dividing The Body Politic, James A. Gardner Dec 2023

Dividing The Body Politic, James A. Gardner

Journal Articles

It has long been assumed in large, modern, democratic states that the successful practice of democratic politics requires some kind of internal division of the polity into subunits. In the United States, the appropriate methods and justifications for doing so have long been deeply and inconclusively contested. One reason for the intractability of these disputes is that American practices of political self-division are rooted in, and have been largely carried forward from, premodern practices that rested originally on overtly illiberal assumptions and justifications that are difficult or impossible to square with contemporary commitments to philosophical liberalism.

The possibility of sorting …


The Effect Of Export-Related Measures On Indonesian Export Of Palm, Cpo, And Its Derivative Products, Edy Krismanto Sipayung, Christina Ruth Elisabeth Dec 2023

The Effect Of Export-Related Measures On Indonesian Export Of Palm, Cpo, And Its Derivative Products, Edy Krismanto Sipayung, Christina Ruth Elisabeth

Economics and Finance in Indonesia

This study investigated the effect of Export-Related Measures (ERMs) imposed by the Government of Indonesia on the export volume and value of palm, Crude Palm Oil (CPO), and its derivatives products utilizing the export data of Indonesia to 194 destination countries in the 2011–2020 period. This study combined the dataset of ERMs from the United Nations Conference on Trade and Development (UNCTAD) database and relevant Indonesian regulations. The results reveal that ERMs have a positive and significant effect on both the export volume and value of Indonesian palm, CPO, and its derivatives products. The price-raising effect or costs of ERMs …


At The Cultural Interface: A Systematic Review Of Study Characteristics And Cultural Integrity From Twenty Years Of Randomised Controlled Trials With Indigenous Participants, Tuguy Esgin, Rona Macniven, Alan Crouch, Alexandra Martiniuk Dec 2023

At The Cultural Interface: A Systematic Review Of Study Characteristics And Cultural Integrity From Twenty Years Of Randomised Controlled Trials With Indigenous Participants, Tuguy Esgin, Rona Macniven, Alan Crouch, Alexandra Martiniuk

Research outputs 2022 to 2026

Purpose and aim: To identify and describe characteristics of Randomised Control Trial (RCT) design, implementation, and interpretation with a view tostrengtheningen the cultural integrity and scientific quality of this genre of research when used with, for and by Indigenous peoples. Issue: RCTs are widely regarded as the ‘gold standard’ method for evaluating the efficacy of an intervention. However, issues of cultural acceptability and higher attrition rates among RCT participants from diverse populations, including Indigenous participants, have been reported. A better understanding of cultural acceptability and attrition rates of RCTs has the potential to impact the translation of findings into effective …


Who Owns Children’S Dna?, Nila Bala Dec 2023

Who Owns Children’S Dna?, Nila Bala

Michigan Law Review

In recent years, DNA has become increasingly easy to collect, test, and sequence, making it far more accessible to law enforcement. While legal scholars have examined this phenomenon generally, this Article examines the control and use of children’s DNA, asking who ultimately owns children’s DNA. I explore two common ways parents—currently considered “owners” of children’s DNA— might turn over children’s DNA to law enforcement: (1) “consensual” searches and (2) direct-to-consumer testing. My fundamental thesis is that parental consent is an insufficient safeguard to protect a child’s DNA from law enforcement. At present, the law leaves parents in complete control of …


Barriers To Help-Seeking Behavior For Individuals With Suicidal Ideations & Previous Suicide Attempts, Rachael M. Vlasak Dec 2023

Barriers To Help-Seeking Behavior For Individuals With Suicidal Ideations & Previous Suicide Attempts, Rachael M. Vlasak

Counselor Education Capstones

Suicide is a mental health crisis around the world with many individuals struggling with suicidal ideations and a history of previous attempts. Sometimes these individuals struggle with seeking help for their suicidal ideations and previous attempts in the form of seeking out support from family and friends or seeking out outpatient or inpatient mental health treatment. Research has uncovered that some of the major barriers that can impact help-seeking behavior among these individuals were internal personal stigma, external public stigma, socioeconomic factors, lack of resources, cultural factors, negative attitudes, and suicide literacy. These barriers have greatly impacted whether individuals have …


Consideration Of First Nations’ Cultural Values In Mine Site Rehabilitation By Environmental Professionals, Will Kemp, Sean M. Bellairs, Janine Joyce, Jane Henderson Dec 2023

Consideration Of First Nations’ Cultural Values In Mine Site Rehabilitation By Environmental Professionals, Will Kemp, Sean M. Bellairs, Janine Joyce, Jane Henderson

Research outputs 2022 to 2026

Rehabilitation of mined land on First Nations’ country after mine closure must achieve particular criteria to be considered successful. Generally, these conditions are based on achieving a habitable condition that is more or less similar to analogue sites or to the pre–mining state. Rehabilitating a site to a habitable condition requires the restoration of cultural values, as well as environmental and economic values. This study investigates the extent to which First Nations’ cultural values are considered in mine rehabilitation in northern Australia. Interviews were conducted with environment professionals who had experience rehabilitating mine sites on First Nations’ land in the …


What Is The Prevalence Of General Anxiety Disorder And Depression Symptoms In Semi-Elite Australian Football Players: A Cross-Sectional Study, Anthony Henderson, Sarah A. Harris, Troy Kirkham, Jonathon Charlesworth, Myles C. Murphy Dec 2023

What Is The Prevalence Of General Anxiety Disorder And Depression Symptoms In Semi-Elite Australian Football Players: A Cross-Sectional Study, Anthony Henderson, Sarah A. Harris, Troy Kirkham, Jonathon Charlesworth, Myles C. Murphy

Research outputs 2022 to 2026

Background: The prevalence of anxiety and depression symptoms in semi-elite Australian footballers is unknown. The primary objective of this study was to determine the prevalence of generalised anxiety disorder (GAD) and depressive symptoms in semi-elite Australian Football players. Our secondary objective was to explore the association between demographic and football-specific factors with GAD and depressive symptoms. A cross-sectional epidemiological study including 369 semi-elite Western Australian Football League (WAFL) players from the Men and Women’s 2022 season (n = 337 men, 91%) was conducted. Symptoms of depression were measured using the Patient Health Questionnaire-9 scale (PHQ-9) and symptoms of GAD with …


Consumer Perspectives Of Quality Care: Exploring Patient Journeys From Remote Primary Healthcare Clinics To Alice Springs Hospital, Emslie Lankin, Amanda Graf, Rebecca Schultz, Richard Johnson, Kylie Mccullough Dec 2023

Consumer Perspectives Of Quality Care: Exploring Patient Journeys From Remote Primary Healthcare Clinics To Alice Springs Hospital, Emslie Lankin, Amanda Graf, Rebecca Schultz, Richard Johnson, Kylie Mccullough

Research outputs 2022 to 2026

Problem or background: Residents of Australia's remote regions have lower life expectancies and poorer health outcomes than other Australians. Access to hospital and specialist care frequently requires transport via road or air and time spent away from family and community. Question, hypothesis or aim: To explore consumer perspectives of the journey from remote communities to regional health services and identify areas for improvement. Methods: Individual interviews (n = 16) and yarning circles were used to collect and interpret stories of patient's journeys. Findings: Travel for medical care was common and often required multiple journeys. Complex social and financial barriers to …


Identifying Trauma Related Predictors Of Dissociation In Maltreated Youth, Amanda L. Mraz Dec 2023

Identifying Trauma Related Predictors Of Dissociation In Maltreated Youth, Amanda L. Mraz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Maltreated youth who experience traumatic dissociation are at an increased risk for various psychopathological difficulties. Much is still unknown about the machinations behind experiences of dissociation post-trauma. This study aimed to identify variables that place maltreated youth at risk for experiencing traumatic dissociation (e.g., dissociative amnesia, absorption and imaginative involvement, passive influence, depersonalization and derealization, and total adolescent dissociative experiences symptoms (A-DES)). Investigatory variables included demographic (e.g., age, gender, and racial identity), cognitive (e.g., resiliency and posttraumatic cognitions), and psychological (e.g., posttraumatic stress disorder symptoms (PTSD) and anxiety) factors. Classification and regression tree (CART) analysis was utilized to observe the …


Eliminating Monitor Overuse (Emo) Type Iii Effectiveness-Deimplementation Cluster-Randomized Trial: Statistical Analysis Plan, Rui Xiao, Christopher P. Bonafide, Nathaniel J. Williams, Zuleyha Cidav, Christopher P. Landrigan, Jennifer Faerber, Spandana Makeneni, Courtney Benjamin Wolk, Amanda C. Schondelmeyer, Patrick W. Brady, Rinad S. Beidas, Enrique F. Schisterman Dec 2023

Eliminating Monitor Overuse (Emo) Type Iii Effectiveness-Deimplementation Cluster-Randomized Trial: Statistical Analysis Plan, Rui Xiao, Christopher P. Bonafide, Nathaniel J. Williams, Zuleyha Cidav, Christopher P. Landrigan, Jennifer Faerber, Spandana Makeneni, Courtney Benjamin Wolk, Amanda C. Schondelmeyer, Patrick W. Brady, Rinad S. Beidas, Enrique F. Schisterman

Social Work Faculty Publications and Presentations

Background: Deimplementing overused health interventions is essential to maximizing quality and value while minimizing harm, waste, and inefficiencies. Three national guidelines discourage continuous pulse oximetry (SpO2) monitoring in children who are not receiving supplemental oxygen, but the guideline-discordant practice remains prevalent, making it a prime target for deimplementation. This paper details the statistical analysis plan for the Eliminating Monitor Overuse (EMO) SpO2 trial, which compares the effect of two competing deimplementation strategies (unlearning only vs. unlearning plus substitution) on the sustainment of deimplementation of SpO2 monitoring in children with bronchiolitis who are in room air.

Methods: …


Hague Service Convention Enters Into Force In Singapore, Adeline Chong Dec 2023

Hague Service Convention Enters Into Force In Singapore, Adeline Chong

Research Collection Yong Pung How School Of Law

Singapore acceded to the Hague Convention on the Service Abroad of Judicial and Extrajudicial Documents in Civil or Commercial Matters (‘Service Convention’) on 16 May 2023. It has now entered into force in Singapore on 1 December 2023. Two declarations were lodged: first, against Article 8(1) objecting to the direct service of judicial documents upon persons in Singapore through foreign diplomatic or consular agents unless the documents are to be served upon a national of the State from which the documents originate; and secondly, objecting to service of judicial and extrajudicial documents in Singapore by the methods of transmission set …


The Relationship Between Balanced Self-Orientations And Well-Being Egosystem – Ecosystem Motivations, Transcendence, Self-Compassion And The Role Of Burnout: A Model Test On Academics, Özge Kantaş, E. Olcay Imamoglu Dec 2023

The Relationship Between Balanced Self-Orientations And Well-Being Egosystem – Ecosystem Motivations, Transcendence, Self-Compassion And The Role Of Burnout: A Model Test On Academics, Özge Kantaş, E. Olcay Imamoglu

Psychology Faculty/Staff Publications

The aim of the presented study is to move on from the basic arguments of the Balanced Integration and Discrimination Model regarding self-structure. academicians' self-orientations (relatedness and individuation) and their work life (feeling of burnout, job satisfaction) and general In the relationship between their well-being (life satisfaction and psychological well-being), interconnected motivational orientations (low egosystem, To test a model that proposes the mediating role of high ecosystem, transcendence) and self-compassion.


"I Think There Is A Place For Small Programs:" Advocating, Implementing, And Sustaining Tpc Programs In Small Us Institutions, Martha Lynn Russell Dec 2023

"I Think There Is A Place For Small Programs:" Advocating, Implementing, And Sustaining Tpc Programs In Small Us Institutions, Martha Lynn Russell

English Theses & Dissertations

Technical and Professional Communication (TPC) programs in small institutions compose of over a third of all programs in the US, yet this space has been understudied by most scholars. To fill this gap, this dissertation presents findings from one-hour interviews with twenty-six TPC program directors in small US institutions with undergraduate populations of less than six thousand. The results of this dissertation include the ways that small institutions are advocating, implementing, and sustaining their TPC program in unique ways with implications for how any TPC programs regardless of size can learn from these findings.


Comparative Study Between Antegrade Flexible Ureteroscopy And Reterograde Intrarenal Surgery In The Management Of Impacted Upper Ureteric Stones 1.5 Cm Or Larger, Ahmed Mohey, Ahmed A Abdelfattah, Ahmed E Mohammed, Abdelmoniem Marzouk, Amr S El-Dakhakhny Dec 2023

Comparative Study Between Antegrade Flexible Ureteroscopy And Reterograde Intrarenal Surgery In The Management Of Impacted Upper Ureteric Stones 1.5 Cm Or Larger, Ahmed Mohey, Ahmed A Abdelfattah, Ahmed E Mohammed, Abdelmoniem Marzouk, Amr S El-Dakhakhny

Student and Faculty Publications

OBJECTIVE: To prospectively investigate the safety and efficacy of antegrade flexible ureteroscopy (FURS) with the following criteria (supine, ultrasonic guided puncture through lower calyx with 14 fr tract, tubeless) versus retrograde intrarenal surgery (RIRS) in the management of large impacted upper ureteric stones ≥ 1.5 cm.

PATIENTS AND METHODS: This study recruited 61 patients with single large impacted upper ureteric stone of ≥ 1.5 cm. The patients were randomly allocated to two groups. Group A, included 31 patients who treated by antegrade FURS, all patients were put in supine modified galadako Valdivia position and the renal access is reached by …


High School Flash Sexual Health Education Curriculum: Lgbtq Inclusivity Strategies Reduce Homophobia And Transphobia, Kari Kesler, Andrea Gerber, B A Laris, Pamela Anderson, Elizabeth Baumler, Karin Coyle Dec 2023

High School Flash Sexual Health Education Curriculum: Lgbtq Inclusivity Strategies Reduce Homophobia And Transphobia, Kari Kesler, Andrea Gerber, B A Laris, Pamela Anderson, Elizabeth Baumler, Karin Coyle

Student and Faculty Publications

Homophobic and transphobic beliefs that lead to bias-based harassment remain a critical concern for young people in the USA. The aim of the present study was to examine the impact of an inclusive comprehensive sex education program (High School FLASH) on homophobic and transphobic beliefs. Data from this study come from a randomized controlled trial that evaluated the impact of High School FLASH on students' sexual behaviors and related outcomes with 20 schools in two U.S. regions (Midwest and South). Following the baseline survey, the 20 schools were randomly assigned to receive FLASH or a comparison curriculum. Ninth and 10th …


An Opioid-Minimizing Multimodal Pain Regimen Reduces Opioid Exposure And Pain In Trauma-Injured Patients At High Risk For Opioid Misuse: Secondary Analysis From The Mast Trial, Constanza De Dios, Robert Suchting, Charles Green, James M Klugh, John A Harvin, Heather E Webber, Joy M Schmitz, Scott D Lane, Jin H Yoon, Angela Heads, Kandice Motley, Angela Stotts Dec 2023

An Opioid-Minimizing Multimodal Pain Regimen Reduces Opioid Exposure And Pain In Trauma-Injured Patients At High Risk For Opioid Misuse: Secondary Analysis From The Mast Trial, Constanza De Dios, Robert Suchting, Charles Green, James M Klugh, John A Harvin, Heather E Webber, Joy M Schmitz, Scott D Lane, Jin H Yoon, Angela Heads, Kandice Motley, Angela Stotts

Student and Faculty Publications

BACKGROUND: Screening to identify patients at risk for opioid misuse after trauma is recommended but not commonly used to guide perioperative opioid management interventions. The Multimodal Analgesic Strategies for Trauma trial demonstrated that an opioid-minimizing multimodal pain regimen reduced opioid exposure in a heterogeneous trauma patient population. Here, we assess the efficacy of the Multimodal Analgesic Strategies for Trauma multimodal pain regimen in a critical patient subgroup who screened at high risk for opioid misuse.

METHODS: The Multimodal Analgesic Strategies for Trauma trial compared an opioid-minimizing multimodal pain regimen (oral acetaminophen, naproxen, gabapentin, lidocaine patch, as-needed opioid) against an original …


Will You Go The Distance? A Satisfaction Survey Of Telemedicine In Sexual Medicine, Gal Saffati, Taher Naeem, Jordan Kassab, Daniela Orozco Rendon, Charles Green, Larry I Liphsultz, Mohit Khera Dec 2023

Will You Go The Distance? A Satisfaction Survey Of Telemedicine In Sexual Medicine, Gal Saffati, Taher Naeem, Jordan Kassab, Daniela Orozco Rendon, Charles Green, Larry I Liphsultz, Mohit Khera

Student and Faculty Publications

BACKGROUND: The success of telemedicine depends on patient satisfaction with the care that they receive, which is impacted by the ease of use of the technology, quality of the connection, and perceived effectiveness of care.

AIM: The study sought to evaluate patient satisfaction with telemedicine services in a high-volume andrology clinic.

METHODS: We included all patients who had a telemedicine appointment between January 1, 2020, and August 22, 2022. Demographic information was gathered, and a satisfaction survey was conducted using REDCap software. Data were grouped into 2 age categories, with ≥50 years as the cutoff (19-50 years; >50 years). The …


Influence Of Pavement Conditions On Commercial Motor Vehicle Crashes, Stephen Arhin, Babin Manandhar, Adam Gatiba Dec 2023

Influence Of Pavement Conditions On Commercial Motor Vehicle Crashes, Stephen Arhin, Babin Manandhar, Adam Gatiba

Mineta Transportation Institute

Commercial motor vehicle (CMV) safety is a major concern in the United States, including the District of Columbia (DC), where CMVs make up 15% of traffic. This research uses a comprehensive approach, combining statistical analysis and machine learning techniques, to investigate the impact of road pavement conditions on CMV accidents. The study integrates traffic crash data from the Traffic Accident Reporting and Analysis Systems Version 2.0 (TARAS2) database with pavement condition data provided by the District Department of Transportation (DDOT). Data spanning from 2016 to 2020 was collected and analyzed, focusing on CMV routes in DC. The analysis employs binary …


Exploring Traffic Speed Patterns For The Implementation Of Variable Speed Limit (Vsl) Signs, Panick Kalambay, Srinivas Pulugurtha Dec 2023

Exploring Traffic Speed Patterns For The Implementation Of Variable Speed Limit (Vsl) Signs, Panick Kalambay, Srinivas Pulugurtha

Mineta Transportation Institute

Traffic congestion is a prevalent issue during peak travel hours on roads in the United States. This study focuses on identifying suitable road links in Charlotte, North Carolina, for implementing variable speed limit (VSL) signs. Real-world traffic speed data collected over one year was analyzed to identify specific road links with favorable characteristics for VSL sign installations. The analysis considered weekdays, weekends, and specific times of the day to capture variations in speed patterns. The results revealed that roads with lower speed limits consistently experienced speeds exceeding the posted speed limits, suggesting additional enforcement or safety measures. For roads with …


Understanding The Effect Of Pervasive Events On Vehicle Travel Time Patterns, Chirag Akbari, Ninad Gore, Srinivas S. Pulugurtha Dec 2023

Understanding The Effect Of Pervasive Events On Vehicle Travel Time Patterns, Chirag Akbari, Ninad Gore, Srinivas S. Pulugurtha

Mineta Transportation Institute

The COVID-19 pandemic has disrupted daily activities and travel patterns, affecting personal and commercial trips. This study investigates the effect of different stages of the pandemic on travel time patterns. Eighty-six geographically distributed links (sections of road) in Mecklenburg County and Buncombe County, North Carolina, were selected for analysis. The selected links accounted for the variation in road geometry, land use, and speed limit. Travel time data for three years (i.e., 2019, 2020, and 2021) were extracted from a private data source at 5-min intervals. Travel time reliability (TTR) and travel time variability (TTV) are estimated for different phases of …