Digital Commons Network^™

The Role Of Radiomics And Ai Technologies In The Segmentation, Detection, And Management Of Hepatocellular Carcinoma, Dalia Fahmy, Ahmed Alksas, Ahmed Elnakib, Ali Mahmoud, Heba Kandil, Ashraf Khalil, Mohammed Ghazal, Eric Van Bogaert, Sohail Contractor, Ayman El-Baz

All Works

Hepatocellular carcinoma (HCC) is the most common primary hepatic neoplasm. Thanks to recent advances in computed tomography (CT) and magnetic resonance imaging (MRI), there is potential to improve detection, segmentation, discrimination from HCC mimics, and monitoring of therapeutic response. Radiomics, artificial intelligence (AI), and derived tools have already been applied in other areas of diagnostic imaging with promising results. In this review, we briefly discuss the current clinical applications of radiomics and AI in the detection, segmentation, and management of HCC. Moreover, we investigate their potential to reach a more accurate diagnosis of HCC and to guide proper treatment planning.

Approaches To Supplementing Silicon In Soilless Media And The Value Of Silicon In The Mitigation Of Drought Stress, Mackenzie Grace Dey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Silicon (Si) is not considered an essential element for plants to complete their lifecycle, but is known to be beneficial for plants under environmental stress such as drought. Unlike natural soils, Si is minimally bioavailable in soilless media. With indoor agriculture and greenhouse production increasing, the benefits of Si have been seen and Si should be supplemented. This work aimed to characterize and quantify the dissolution of Si from media substrates and additives to achieve a steady-state release of Si in soilless media. Typical media components such as coconut coir, peat moss, perlite, rock wool, sand, and vermiculite minimally released …

Pronghorn Space-Use Ecology In Utah, Veronica A. Winter

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Pronghorn are viewed as a quintessential part of the landscape in the American West. Found only in western North America, pronghorn is a unique species, having historic ranges within prairie, shrubland-steppe, and desert habitat across the continental west. Even though they have been present on this landscape since the last ice age, little is known of pronghorn ecology. There has been growing concern over the impact anthropogenic features, such as development, agriculture, and roads are having on migration, seasonal range conditions, and overall population dynamics. The aim of this thesis is to investigate factors that may be important for pronghorn …

Smartphone Usage Before And During Covid-19: A Comparative Study Based On Objective Recording Of Usage Data, Khansa Chemnad, Sameha Alshakhsi, Mohamed Basel Almourad, Majid Altuwairiqi, Keith Phalp, Raian Ali

All Works

Most studies that claimed changes in smartphone usage during COVID-19 were based on self-reported usage data, e.g., that collected through a questionnaire. These studies were also limited to reporting the overall smartphone usage, with no detailed investigation of distinct types of apps. The current study investigated smartphone usage before and during COVID-19. Our study used a dataset from a smartphone app that objectively logged users’ activities, including apps accessed and each app session start and end time. These were collected during two periods: pre-COVID-19 (161 individuals with 77 females) and during COVID-19 (251 individuals with 159 females). We report on …

Verbal Lie Detection: Its Past, Present And Future, Aldert Vrij, Pär Anders Granhag, Tzachi Ashkenazi, Giorgio Ganis, Sharon Leal, Ronald P. Fisher

School of Psychology

This article provides an overview of verbal lie detection research. This type of research began in the 1970s with examining the relationship between deception and specific words. We briefly review this initial research. In the late 1980s, Criteria-Based Content Analysis (CBCA) emerged, a veracity assessment tool containing a list of verbal criteria. This was followed by Reality Monitoring (RM) and Scientific Content Analysis (SCAN), two other veracity assessment tools that contain lists of verbal criteria. We discuss their contents, theoretical rationales, and ability to identify truths and lies. We also discuss similarities and differences between CBCA, RM, and SCAN. In …

Evaluation Of Energy Detection-Based Spectrum Sensing For Cognitive Radio Applications, Rania. A. Youssef, Mohamed. A. Mohamed, Ahmed A. Kabeel

Mansoura Engineering Journal

In this paper, a novel design of cognitive radio (CR) system based on a tunable ultra wide-band antenna is suggested; it offers a quick and cheap method for effectively locating spectrum gaps spanning. The frequency ranges of 9.30 to 13 GHz with three operating bandwidths (BW) of 1.11GHz ,0.8 GHz, and 0.36GHz. Frequency is scanned by using a tunable Ultra-Wideband, the antenna has a small size with five gaps that are used as a Switch 2 mm × 3 mm and the partial ground 30 mm × 30 mm, these Switches can offer a tuning capability. The suggested antenna is …

Heterogeneity Estimators In Random-Effects Meta-Analysis In Education, Qian Wang

Dissertations

Over the last four decades, meta-analysis has proven to be a vital analysis strategy in educational research for synthesizing research findings from different studies. When synthesizing studies in a meta-analysis, it is common to assume that the true underlying effect varies from study to study, as studies will differ in design, participants, interventions, or sample size that can lead to heterogeneity in their underlying effects. The magnitude of this heterogeneity between studies can be quantified as τ2 in a random-effects meta-analysis. Estimating the between-study heterogeneity (τ2) becomes an important part of random effects meta-analysis reporting, since this quantity plays a …

Evaluating Translocation Strategies For Box Turtles In Urbanizing Landscapes, Elizabeth D. Hays

Biological Sciences Undergraduate Honors Theses

Urbanization of landscapes, resulting in habitat degradation, loss, and fragmentation, is a significant contributor to the global decline of reptile biodiversity. Although translocation is a common management strategy for wildlife populations subject to urbanization, the efficacy of reptile translocation studies, including those of box turtles (Terrapene spp.), is highly variable. Hard-release translocation of box turtles has often proven ineffective due to homing attempts and rapid post-translocation movements. Some studies have presented soft-release as a possible method for mitigation of the negative effects of hard-release, yet those studies have also produced mixed results. Therefore, I radiotracked 18 translocated Terrapene carolina …

A Voice And Facial Recognition System To Protect Students From Being Forgotten Inside School Buses In The Kingdom Of Saudi Arabia, Ibrahim Alferaih

Theses and Dissertations

In this research, we discuss the situation of students in the three to eight year old age group. Every day in the Kingdom of Saudi Arabia during school days, more than 1,000,000 students are transported throughout the country by more than 15,000 school buses. Everything is dependent on the human element. During school transportation around the world, many children are forgotten inside the school bus and with many of them eventually going missing or even dying. The bus driver is usually busy and tired due to the focus on the road, which may make him lose focus on those on …

Modeling, Verification, And Simulation Of A Uav Swarm Consensus Protocol, Rohit Martin Menghani

Theses and Dissertations

Unmanned Aerial Vehicles (UAVs), particularly electrically powered multi-rotors, are becoming increasingly popular in the entertainment, transportation, logistics, and military sectors. One of the main drawbacks presented by these vehicles at the time of writing is the limited range achieved as a consequence of the limits of battery technology. One common method used to overcome such limitations, is the use of multiple vehicles in cooperation to achieve a certain goal. This application of UAVs is called swarming, where multiple agents can coordinate their actions to fly in a certain formation, to access a certain challenging area, or to fly further. As …

Employment Transitions From Active-Duty Army Officer To Civilian: An Exploration Of The Knowledge, Skills, And Abilities Possessed By Combat-Experienced, Army Field-Grade Officers, James Daniel Crook

Theses and Dissertations

Two decades of wars in Iraq and Afghanistan have concluded, bringing an end to the longest military conflicts in the history of the United States of America. Following the example of post-war history, the military’s posture is to reduce personnel end-strength. The post-war military requires fewer soldiers, and a significant number of transitioning officers make the journey from military to civilian employment. This quantitative study discovered the knowledge, skills, and abilities of combat-experienced, active-duty, Army field-grade officers and explored the change from military to civilian employment. This study addressed the gap in the literature regarding this specific group of transitioning …

Deep Learning Approach To Speech Recognition: A Signal Extractor & Producer For Artificial General Intelligence, Ahmad Zuhair S. Hasanain

Theses and Dissertations

The efficient use of a communication bandwidth starts with the data source. The features of the speech signals can be extracted and reconstructed to lower the Internet traffic of the acoustic artificial agents and to increase the quality of the automatic speech recognition systems. The Speech Quefrency Transform (SQT) is hereby introduced in the work to enrich the communication space between the artificial agents and mankind. We describe the motivation, methodology, and deep learning approach in detail as we apply the SQT technology to several applications: sharp pitch track extraction, real-time speech communications, and emotion recognition. The results were excellent. …

How Well Do Your Family Members Know You? The Relationship Between Informant Report And Cognitive Performance Of Older Adults, Mairy Yousif

Theses and Dissertations

Introduction: Given the clear impact and prevalence of dementia on the aging population, there is a need for greater research and understanding in this area. As the dementia progresses, medical providers rely heavily on caregiver and family member reports of the patient’s functioning and other aspects of their care. Therefore, it is important to know how accurate caregivers and family members are in judging their loved ones’ cognitive and physical strengths and weaknesses. This study aims to expand upon these previous studies by comparing caregiver/collateral reports of cognitive and functional status on the DSRS to neuropsychological tests and an objective …

Cloud Image Classification Using Machine Learning, Marcus Peter Cote

Theses and Dissertations

Machine learning is a rapidly expanding technology that has proven to be highly useful for image classification. Ground-based camera networks are an emerging resource for aviation weather information with near real-time imagery available online for public viewing and download. While raw web camera imagery can be analyzed by aviators, high pilot workload motivates the use of machine learning to autonomously interpret cloud type information from images that is relevant to aviation weather hazards. In particular, transfer learning is a machine learning approach by which elements of a pre-trained machine learning model are refitted for new tasks. By employing transfer learning …

Identifying & Addressing Barriers To Child Care For Formerly Incarcerated Mothers, Joanne Bird

Capstone Experience: Master of Public Health

As women’s incarceration rates have risen significantly in recent decades, gender-specific programs are needed to meet the needs of formerly incarcerated mothers (FIM). Although child care can be difficult to access for many families, this marginalized population faces unique obstacles to accessing child care. In order for FIM to be employed and reintegrate, they must be able to access child care; however, FIM experience unique barriers to securing child care services. This policy brief aims to identify the special considerations FIM face, as well as to explore why existing programs are not meeting their specific needs. A literature review was …

The Merit Of Inclusion: A Policy Review Examining The Convergence Of Special Education And Inclusions Policies With Compensatory Medicaid Policies In The Wake Of The Covid-19 Pandemic, Corbyn Baggett

Capstone Experience: Master of Public Health

On March 11, 2020, the World Health Organization (WHO) formally recognized the novel coronavirus (COVID-19) outbreak as a global pandemic. This global issue compelled governments to announce careful virus containing policies in order to prevent further spread and control of the disease. Although it has been proven that measures like social isolation could aid in scaling the spread of illness, the resulting extended school closures that occurred in response to an increased number of COVID-19 outbreaks posed significant challenges for all students, but especially those students with special needs. The unpredictable nature of COVID-19 at the outset of the pandemic …

The Risk Factors Of Long Covid In The Acute Covid And Solid Organ Transplant Retrospective Cohorts, Ahmed Nyandemoh

Capstone Experience: Master of Public Health

Background: Coronavirus disease 2019 (COVID-19) in solid organ transplant (SOT) patients is associated with more severe outcomes than non-immunosuppressed hosts. The risk factors for developing the long COVID in acute COVID remain unknown, and the survival outcomes of long COVID in SOT patients remain understudied.

Methods: We developed several retrospective cohorts. This project included all patients identified with acute COVID in the National COVID Collaborative Cohort Registry from July 1, 2020, to June 30, 2022.

Patients with long COVID were compared to those without long COVID in the acute COVID cohorts. Similarly, we compared the patient demographic with long COVID …

Better-Than-Chance Prediction Of Cooperative Behaviour From First And Second Impressions, Eric Schniter, Timothy W. Shields

ESI Working Papers

Could cooperation among strangers be facilitated by adaptations that use sparse information to accurately predict cooperative behaviour? We hypothesize that predictions are influenced by beliefs, descriptions, appearance, and behavioural history available for first and second impressions. We also hypothesize that predictions improve when more information is available. We conducted a two-part study. First, we recorded thin-slice videos of university students just before their choices in a repeated Prisoner’s Dilemma with matched partners. Second, a worldwide sample of raters evaluated each player using either videos, photos, only gender labels, or neither images nor labels. Raters guessed players’ first-round Prisoner’s Dilemma choices …

The Implications Of New York’S Gender Expression Non-Discrimination Act For Transgender Housing In Prisons, Rebecca Barrett

Cardozo Law Review

No abstract provided.

Through The Disciplinary Looking Glass: Examining The Impact Of The Adultification Of Black Adolescent Girls Through The Perspectives Of New York State School Administrators, Caron F. Cox

Education Doctoral

The purpose of this phenomenological study was to examine the perceptions of school administrators regarding the impact adultification bias toward Black adolescent girls has on their overrepresentation in disciplinary data. Data were analyzed through 10 semi-structured interviews of principals and assistant principals. Social reproduction theory, intersectional theory, and Black feminist thought framed this study’s findings, which suggest that Black adolescent girls experience adultification bias regularly, contributing to their negative schooling experiences. These adverse experiences are often the result of a subjective interpretation of district policies through a biased lens.

The findings suggest that building leaders are often willing to facilitate …

Non-Negative Matrix Factorization In The Identification Of Co-Mutations, Michael Robert Kolar

Theses and Dissertations

One of the difficulties of genetic research is the asymmetrical relationship between data collection techniques and data analysis techniques. The goal of this research was to test a novel application of non-negative matrix factorization, which would allow researchers to more easily identify co-mutations. Those co-mutations then can then be further verified by frequency analysis. This pruning process allows researchers to identify more fruitful research opportunities, saving time, energy, and funding. Past research has utilized non-negative matrix factorization to extract factors which meaningfully express underlying data features. This study extends the depth of non-negative matrix factorization knowledge in various ways. First, …

Thematic Consistency Between Criminal History And Crime Scene Behaviors: Comparing Sexual Homicide Offenders With And Without Criminal Histories Of Sexual Offenses, Shannon E. Ettinger

Student Theses

Offender profiling research suggests that offenders may display behavioral consistency, meaning they may behave in some consistent manner between their crime scene actions and other aspects of their lives. Through behavioral themes, researchers can identify consistency in groups of individual behaviors that are thematically similar. Previous literature successfully applied the Expressive/Instrumental themes to homicide crime scene behaviors and criminal history. The current study aims to apply the Expressive/Instrumental thematic approach to analyzing the relationship between sexual homicide offender’s criminal history and their crime scene behaviors. The present study focuses on the distinction between sexual homicide offenders with a history of …

Prevalence Of Non-Self Dna On Three Different Sebaceous Skin Locations, Jan Kirstine Zamora

Student Theses

This project serves to provide additional information on the prevalence of non-self DNA on the exposed skin locations specifically the inner upper arm, the nape area of the neck and the neck area just below the ear, where current literature is lacking. Skin tape lifts from these locations were collected from 15 male participants and 13 female participants once a week over a period of three weeks. Only single source profiles were obtained from six volunteers. Eight volunteers had only one mixture DNA profile in nine samples, while mixture DNA profiles for at least two collection occasions were observed in …

Perception Of Police And The Mediation Of Memory Distortion Via Trauma: Body Worn Camera Footage Of An Emotional Police-Citizen Encounter, Arlyn Abreu

Student Theses

This present study calls to question the objectivity of police body-worn camera (BWC) footage. Proponents assume that BWCs will be a panacea in a climate of heightened tensions between officers and communities. In spite of this, our findings challenge the rhetoric, and the purpose BWC is intended to serve. We explored its implications on memory distortion by posing two questions (a) can people come to remember BWC footage as more traumatic than they initially experienced (b) to what degree can external information and internal influences impact peoples' judgment about a traumatic event. We addressed both questions in this two-part study, …

Landscape Genomics Of The Tussock Cottongrass (Eriophorum Vaginatum) And The Dwarf Birch (Betula Nana) In North Central Alaska, Elizabeth Stunz

Open Access Theses & Dissertations

Global climate change has resulted in geographic range shifts of flora and fauna at a global scale. Extreme environments, like the Arctic, are seeing some of the most pronounced changes. This region covers 14% of the Earthâ??s land area, and while many arctic species are widespread, understanding ecotypic variation at the genomic level will be important for elucidating how range shifts will affect ecological processes. Increase in shrub cover is a major effect of ongoing climate change in arctic tundra ecosystems. The relative increases in abundance and cover of shrub species such as birch, willow, and alder (Betula, Salix, and …

Rethinking Committee Work In The Research Enterprise: The Case Of Regenerative Gatekeeping, Jonathan C. Lewis, Aixa Alemán-Díaz, Mona Behl, Sarah Kolesar, Lisa White, Brandon Jones, Corey Garza, Sharon Cooper

Marine Science Faculty Publications and Presentations

Committees touch nearly every facet in the science, technology, engineering, and mathematics research enterprise. However, the role of gatekeeping through committee work has received little attention in Earth and space sciences. We propose a novel concept called, “regenerative gatekeeping” to challenge institutional inertia, cultivate belonging, accessibility, justice, diversity, equity, and inclusion in committee work. Three examples, a hiring committee process, a seminar series innovation, and an awards committee, highlight the need to self-assess policies and practices, ask critical questions and engage in generative conflict. Rethinking committee work can activate distributed mechanisms needed to promote change.

Parents’ Awareness In The Kingdom Of Saudi Arabia Regarding Failure To Thrive: A Descriptive Cross-Sectional Study, Reem A. Alshammari, Osama S. Alnezari, Waleed A. Alhirabi, Salm J. Alaamer, Abdulmajeed S. Alsadun, Abdulmalik F. Alhmazani, Yousef F. Bakrshoom, Ali H. Alharbi

Saudi Medical Journal

Objectives: To assess the level of parental Awareness about growth failure across all of Saudi Arabia and look into the potential influence of covariates (social and demographic) as determinants of the level of knowledge of parents, both mother and father, aged between 18 and 60, and on the national level. Methods: A cross-sectional study involving a survey of 4,404 parents, aged between 18 and 60 years, in all administrative regions within Saudi Arabia was undertaken From March 2022 to May 2022. Results: The majority of participants had average awareness of FTT, and differences in region, as well as in educational …

Community Improvement Projects For Marginalized Populations In Monterey County, Alizha Barrera

Capstone Projects and Master's Theses

CHISPA is a non profit organization that is located downtown of Salinas, California within Monterey County. Their mission is to improve people’s lives and create healthy neighborhoods by developing, selling, owning and managing affordable homes for low income families and senior citizens. Within the senior citizen housing they have a program that is known as the lunch program that provides meals Monday through Friday from 9 a.m. to 12 p.m. The main property that I focused on was Los Abuelitos Senior Housing. For my capstone project I came up with a questionnaire that helped me figure out what they eat, …

Educational Technology Workshops For The Seniors Adults, Maria Guadalupe Martinez Bribiesca

Capstone Projects and Master's Theses

The City of Watsonville Parks and Community Services works with various ages, from toddlers to seniors, depending on the program or organization. The main focus of this project was to work towards keeping seniors up to date with advanced technology. The problem was that many seniors don’t have the knowledge when it comes to using technology properly. The project's purpose was to educate as many senior citizens with basic computer skills. The workshop was offered both in Spanish and English once every month. The individual appointments are every week on Tuesdays. The project has exceeded expectations. The individual appointments get …

Empowering The Neurodiverse Community Through Sex Education, Talya Mainzer

Capstone Projects and Master's Theses

The Without Walls (WOW) Program is a collaboration between Gateway Center of Monterey County and Pacific Grove Adult Education, serving neurodiverse adults between the ages of 18-55. Historically, people with disabilities have been excluded from comprehensive social-emotional and sexual health education which was reflected in the findings of a survey distributed to participants of the WOW program. Of the respondents, 71.4 percent reported never receiving sex education while 57.1 percent reported never receiving education regarding healthy relationships. This is problematic as people with disabilities are more likely to experience harm and are less likely to report it compared to their …