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Coarse-Grained Molecular Simulations And Ensemble-Based Mutational Profiling Of Protein Stability In The Different Functional Forms Of The Sars-Cov-2 Spike Trimers: Balancing Stability And Adaptability In Ba.1, Ba.2 And Ba.2.75 Variants, Gennady M. Verkhivker, Mohammed Alshahrani, Grace Gupta 2023 Chapman University

Coarse-Grained Molecular Simulations And Ensemble-Based Mutational Profiling Of Protein Stability In The Different Functional Forms Of The Sars-Cov-2 Spike Trimers: Balancing Stability And Adaptability In Ba.1, Ba.2 And Ba.2.75 Variants, Gennady M. Verkhivker, Mohammed Alshahrani, Grace Gupta

Mathematics, Physics, and Computer Science Faculty Articles and Research

Evolutionary and functional studies have suggested that the emergence of Omicron variants can be determined by multiple fitness tradeoffs including immune escape, binding affinity, conformational plasticity, protein stability, and allosteric modulation. In this study, we embarked on a systematic comparative analysis of the conformational dynamics, electrostatics, protein stability, and allostery in the different functional states of spike trimers for BA.1, BA.2, and BA.2.75 variants. Using efficient and accurate coarse-grained simulations and atomistic reconstruction of the ensembles, we examined the conformational dynamics of the spike trimers that agree with the recent functional studies, suggesting that BA.2.75 trimers are the most stable …


Lessons Learned From Covid-19, Donald Tucker DDS 2023 American Dental Association

Lessons Learned From Covid-19, Donald Tucker Dds

The New York State Dental Journal

Dentistry and society, in general, must seek out accurate information regarding the virus and follow scientifically established guidelines to mitigate serious outcomes.


Covid-19 Vaccine Hesitancy And Vaccination Rate Among The Latino Population In South Carolina, Brynn E. Lynagh 2023 University of South Carolina - Columbia

Covid-19 Vaccine Hesitancy And Vaccination Rate Among The Latino Population In South Carolina, Brynn E. Lynagh

Senior Theses

It is common knowledge that COVID-19 disproportionately impacts racial and ethnic minorities in the United States. Furthermore, these sects of the population exhibit increased vaccine hesitancy and lower vaccination rates as compared to the aggregated population of the United States, furthering the risk posed by COVID-19 to these communities. In particular, this study focuses on the Latino population in South Carolina, the vaccination rate among this community, and the perspectives which contributed to their vaccination decision. Two hundred Spanish and Portuguese speaking residents of South Carolina were interviewed using a paper survey conducted by pre-trained interviewers. The survey gathered data …


Discrepancies In The Estimation Of Vaping Rates Among College Students, Cameron J. Klug 2023 University of South Dakota

Discrepancies In The Estimation Of Vaping Rates Among College Students, Cameron J. Klug

Honors Thesis

The use of nicotine inhalation products among college students is an imminent public health issue, with young-adult populations being particularly likely to take up nicotine use during their college years (American College Health Association, 2021). Even with elevated levels of nicotine vapor product use in college populations, existing surveys may still underestimate the prevalence of nicotine use among this population. This study aimed to address this issue by conducting a survey of college students at the University of South Dakota, using a peer-to-peer approach to reduce social desirability bias. The study’s survey directly stated it was being issued and analyzed …


Prevalence Of Sars-Cov-2 Antibodies In Liberty University Student Population, Emily Bonus 2023 Liberty University

Prevalence Of Sars-Cov-2 Antibodies In Liberty University Student Population, Emily Bonus

Senior Honors Theses

In 2020, the virus SARS-CoV-2 gained attention as it spread around the world. Its antibodies are poorly understood, and little research focuses on those with few COVID-19 complications yet large numbers of close contacts: university students. This longitudinal study recorded SARS-CoV-2 antibody presence in 107 undergraduate Liberty University students twice during early 2021. After extensive data cleaning and the application of various statistical tests and ANOVAs, the data seems to show that in the case of COVID-19 infections, SARS-CoV-2 IgM antibodies are immediately produced, and then IgG antibodies follow later. However, the COVID-19 vaccine causes the production of both IgM …


A Cross-Sectional Analysis Of Infectious Causes Of Congenital Morbidity And Mortality In Central America: Torch, El Salvador, Mary Katherine Lynn 2023 University of South Carolina

A Cross-Sectional Analysis Of Infectious Causes Of Congenital Morbidity And Mortality In Central America: Torch, El Salvador, Mary Katherine Lynn

Theses and Dissertations

The primary goal of this dissertation was to understand the prevalence of the most regionally salient TORCH pathogens among a group of perinatal women from a highly vulnerable region of El Salvador at the time of parturition. TORCH pathogens, that cause TORCH congenital syndromes, are classically defined as Toxoplasma gondii, other infectious causes of concern (Zika virus, malaria, human immunodeficiency virus, etc), Rubella virus, Cytomegalovirus(CMV), and Herpes Simplex Viruses. These infections can be passed from mother to fetus through the placenta or other perinatal routes and cause severe maternal and neonatal morbidity and mortality. This dissertation sought to understand perinatal …


Autism Awareness Month 2023, Raquel Estrada, William Flores 2023 The University of Texas Rio Grande Valley

Autism Awareness Month 2023, Raquel Estrada, William Flores

Library Display Posters

Collection of posters created for Autism Awareness Month. Poster topics include: General Books, Popular Titles, Juvenile Titles, Streaming Films, and Research Resources. Book and video covers are hyperlinked.


3rd Place Contest Entry: Using The Scientific Method To Combat The Biological And Sociological Effects Of The Covid-19 Pandemic: An Aspiring Healthcare Professional’S Perspective, Isabelle Dhindsa 2023 Chapman University

3rd Place Contest Entry: Using The Scientific Method To Combat The Biological And Sociological Effects Of The Covid-19 Pandemic: An Aspiring Healthcare Professional’S Perspective, Isabelle Dhindsa

Kevin and Tam Ross Undergraduate Research Prize

This is Isabelle Dhindsa's submission for the 2023 Kevin and Tam Ross Undergraduate Research Prize, which won third place. It contains their essay on using library resources, their bibliography, and a sample of their research project on using the scientific method to combat the biological and sociological effects of the COVID-19 pandemic.

Isabelle is a fourth-year student at Chapman University, majoring in Biology. Their faculty mentor is Dr. Carmichael Peters.


Intergenerational Change In Hiv/Aids-Related Stigma In Cato Manor, MiJin Cho 2023 SIT Study Abroad

Intergenerational Change In Hiv/Aids-Related Stigma In Cato Manor, Mijin Cho

Independent Study Project (ISP) Collection

In South Africa, the world’s epicenter of the HIV/AIDS pandemic, HIV-related stigma and stigma-enforcing stereotypes continue to serve as major health barriers to receiving adequate HIV prevention and treatment. While there continues to be a rise in research and advocacy, there is a need to study HIV stigma through a multigenerational lens that addresses the changing HIV/AIDS stigma in the post-apartheid era. Using qualitative methodology, this study aims to explore the generational differences in perceived HIV stigma between females in their 20s and above 50 years of age (as denoted by “50s+”) living in Cato Manor, South Africa. The study …


Food Insecurity In Youth And Young Adults With Diabetes: Prevalence And Association With Health Behaviors, Lauren Helene Martini 2023 University of South Carolina

Food Insecurity In Youth And Young Adults With Diabetes: Prevalence And Association With Health Behaviors, Lauren Helene Martini

Theses and Dissertations

Given the life-long impact of diabetes(1-5), it is important to engage in behaviors that promote health and wellness to delay or prevent negative health outcomes(3, 6-10). Despite this, youth and young adults with diabetes generally do not adhere to nutritional(11-17) or physical activity(18, 19) recommendations. In households experiencing financial difficulties, especially those who are having difficulty providing sufficient food to all of its members, adhering to recommendations may be even more difficult.

The purpose of this dissertation is to better understand and contextualize food insecurity among youth and young adults (YYA) with youth-onset T1DM and T2DM. The first aim addresses …


Development And Validation Of A Diagnostic Aid For Convulsive Epilepsy In Sub-Saharan Africa: A Retrospective Case-Control Study, Gabriel Davis Jones, Symon M. Kariuki, Anthony Ngugi, Angelina Kakooza Mwesige, Honorati Masanja, Seth Owusu-Agyei, Ryan Wagner, J Helen Cross, Charles R. Newton, Arjune Sen 2023 John Radcliffe Hospital, UK

Development And Validation Of A Diagnostic Aid For Convulsive Epilepsy In Sub-Saharan Africa: A Retrospective Case-Control Study, Gabriel Davis Jones, Symon M. Kariuki, Anthony Ngugi, Angelina Kakooza Mwesige, Honorati Masanja, Seth Owusu-Agyei, Ryan Wagner, J Helen Cross, Charles R. Newton, Arjune Sen

Pathology, East Africa

Background Identification of convulsive epilepsy in sub-Saharan Africa relies on access to resources that are often unavailable. Infrastructure and resource requirements can further complicate case verification. Using machine- learning techniques, we have developed and tested a region-specific questionnaire panel and predictive model to identify people who have had a convulsive seizure. These findings have been implemented into a free app for health- care workers in Kenya, Uganda, Ghana, Tanzania, and South Africa.

Methods In this retrospective case-control study, we used data from the Studies of the Epidemiology of Epilepsy in Demographic Sites in Kenya, Uganda, Ghana, Tanzania, and South Africa. …


Virtual And In Vitro Screening Of Natural Products Identifies Indole And Benzene Derivatives As Inhibitors Of Sars-Cov-2 Main Protease (MPro), Dony Ang, Riley Kendall, Hagop S. Atamian 2023 Chapman University

Virtual And In Vitro Screening Of Natural Products Identifies Indole And Benzene Derivatives As Inhibitors Of Sars-Cov-2 Main Protease (MPro), Dony Ang, Riley Kendall, Hagop S. Atamian

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The rapid spread of the coronavirus disease 2019 (COVID-19) resulted in serious health, social, and economic consequences. While the development of effective vaccines substantially reduced the severity of symptoms and the associated deaths, we still urgently need effective drugs to further reduce the number of casualties associated with SARS-CoV-2 infections. Machine learning methods both improved and sped up all the different stages of the drug discovery processes by performing complex analyses with enormous datasets. Natural products (NPs) have been used for treating diseases and infections for thousands of years and represent a valuable resource for drug discovery when combined with …


Adult Asthma Associated With Roadway Density And Housing In Rural Appalachia: The Mountain Air Project (Map)., W Jay Christian, John Flunker, Beverly May, Susan Westneat, Wayne T Sanderson, Nancy Schoenberg, Steven R Browning 2023 University of Kentucky

Adult Asthma Associated With Roadway Density And Housing In Rural Appalachia: The Mountain Air Project (Map)., W Jay Christian, John Flunker, Beverly May, Susan Westneat, Wayne T Sanderson, Nancy Schoenberg, Steven R Browning

UK CARES Faculty Publications

BACKGROUND: Appalachian Kentucky is a rural area with a high prevalence of asthma among adults. The relative contribution of environmental exposures in the etiology of adult asthma in these populations has been understudied.

OBJECTIVE: This manuscript describes the aims, study design, methods, and characteristics of participants for the Mountain Air Project (MAP), and focuses on associations between small area environmental exposures, including roadways and mining operations, and lifetime and current asthma in adults.

METHODS: A cohort of residents, aged 21 and older, in two Kentucky counties, was enrolled in a community-based, cross-sectional study. Stratified cluster sampling was used to select …


Diet And Salivary Microbiome On Cardiovascular Risk And Glycemic Control In Participants With And Without Type 1 Diabetes: The Cacti Study, Tiantian Pang 2023 University of South Florida

Diet And Salivary Microbiome On Cardiovascular Risk And Glycemic Control In Participants With And Without Type 1 Diabetes: The Cacti Study, Tiantian Pang

USF Tampa Graduate Theses and Dissertations

Introduction: The prevalence of type 1 diabetes mellitus (T1DM) has been increasing drastically in the United States. People with T1DM are at a higher risk of developing diabetes-related complications, including cardiovascular disease (CVD). Diet is one of the most modifiable factors and healthy eating could reduce CVD risk among individuals with T1DM. The current 2015-2020 Dietary Guidelines for Americans focus on overall healthy eating patterns rather than individual foods and nutrients. A healthy dietary pattern or high-quality diet can be measured by diet quality indexes, and generally contains minimal ultra-processed foods (UPF). Although substantial evidence has linked poor diet quality …


Using An Online Calculator To Describe Excess Mortality In The Philippines During The Covid-19 Pandemic, Julius Migriño Jr, Ma Rosario Bernardo-Lazaro 2023 Ateneo School of Medicine and Public Health, Ateneo de Manila University

Using An Online Calculator To Describe Excess Mortality In The Philippines During The Covid-19 Pandemic, Julius Migriño Jr, Ma Rosario Bernardo-Lazaro

Ateneo School of Medicine and Public Health Publications

Objective

Excess mortality is an indicator of the impact of the coronavirus disease (COVID-19) pandemic. This study aims to describe excess mortality in the Philippines from January 2020 to December 2021 using an online all-cause mortality and excess mortality calculator.

Methods

All-cause mortality datasets from 2015 to 2021 from the Philippine Statistics Authority were obtained and analysed using the World Health Organization Western Pacific Regional Office All-Cause Mortality Calculator. Expected mortality, excess mortality and P-scores were obtained using two models, 5-year averages and negative binomial regression, for total deaths and by administrative region.

Results

Reported national all-cause mortality exceeded the …


The Top 50 Most Cited Articles On The Medial Patellofemoral Ligament (Mpfl): A Bibliometric Analysis, Varag Abed, Alex DuVall, Jonathan D. Rexroth, Alyssa Goodwin, Joseph Liu, Austin Stone 2023 University of Kentucky

The Top 50 Most Cited Articles On The Medial Patellofemoral Ligament (Mpfl): A Bibliometric Analysis, Varag Abed, Alex Duvall, Jonathan D. Rexroth, Alyssa Goodwin, Joseph Liu, Austin Stone

Medical Student Research Symposium

Objectives: To determine which original articles on the topic of the medial patellofemoral ligament (MPFL) have been cited the most in the literature utilizing a bibliometric approach. Secondarily, to determine temporal trends between article types.

Methods: Articles on the topic of the MPFL were identified by utilizing the Web of Science Database. The search yielded 1,596 results and the top 50 cited original articles were collected for further analysis. The following information was gathered for all included articles: title, first author's name, journal name, year of publication, impact factor of the journal in 2021, total number of citations of the …


Effects Of Armed Conflict On Maternal And Infant Health: A Case Study Of Armenia And The 2020 Nagorno-Karabakh War, Lara Rostomian 2023 Wayne State University

Effects Of Armed Conflict On Maternal And Infant Health: A Case Study Of Armenia And The 2020 Nagorno-Karabakh War, Lara Rostomian

Medical Student Research Symposium

Introduction: Armed conflict is a major cause of ill health and mortality which disproportionately impacts women and children. The 2020 War between Armenia and Azerbaijan over the territory of Nagorno-Karabakh occupied by ethnically Armenian population, provides an example of how conflict impacted health during COVID-19. We hypothesize that exposure to crises will correspond to decreased healthcare utilization rates and worse health outcomes of the maternal and infant population in Armenia, and that these trends will be compounded during the pandemic period.

Methods: Following a historic case study approach, we used ecological level data from 1980-2020 to evaluate trends in battle …


Innovative Research Framework For Strengthening Health Care And Public Health Engagement In Neighborhood Change As A Social Determinant Of Health, Christopher Williams, Nathaniel Woodard, Charlene Chao-Li Kuo 2023 Public Health Liberation

Innovative Research Framework For Strengthening Health Care And Public Health Engagement In Neighborhood Change As A Social Determinant Of Health, Christopher Williams, Nathaniel Woodard, Charlene Chao-Li Kuo

Advances in Clinical Medical Research and Healthcare Delivery

Background

Neighborhood change is a social determinant of health (SDOH) that has been associated with adverse health and increased health care utilization. The number of cities and neighborhoods undergoing intense gentrification, defined as an influx of wealthy populations into a working-class neighborhood, is not highly numerous. Public health and health systems are increasingly engaged with SDOH in community-level interventions. Pathways to study and affect NC-related health impacts are limited. This unfunded study provides a research framework to address concerns about financial investment, identifying population health needs, and community stakeholder engagement.

Methods

The authors conducted a cross-sectional pilot study in a …


Syndemics And Social Factors: Infectious Disease Patterns Within The Population Of People Experiencing Homelessness In The United States, Kathleen Berzonsky 2023 University of Nebraska-Lincoln

Syndemics And Social Factors: Infectious Disease Patterns Within The Population Of People Experiencing Homelessness In The United States, Kathleen Berzonsky

Honors Theses

Individuals experiencing homelessness are at increased risk of suffering from infectious diseases. This is due to a number of social factors and healthcare disparities, as well as the idea of syndemics, by which diseases cluster together to worsen disease burden. Current intervention strategies approach treatment from a post-infection perspective, but reducing transmission rates of infectious diseases within the population of people experiencing homelessness will require a shift in the healthcare framework. The issue of people experiencing homelessness must be viewed through a biosocial lens, focusing on preventative care and treatment. I provide an overview of the social factors governing infectious …


Interactions Of Snps In Folate Metabolism Related Genes On Prostate Cancer Aggressiveness In European Americans And African Americans, Hui Yi Lin, Susan E. Steck, Indrani Sarkar, Elizabeth T.H. Fontham, Alan Diekman, Lora J. Rogers, Calvin T. Ratliff, Jeannette T. Bensen, James L. Mohler, L. Joseph Su 2023 LSU Health Sciences Center - New Orleans

Interactions Of Snps In Folate Metabolism Related Genes On Prostate Cancer Aggressiveness In European Americans And African Americans, Hui Yi Lin, Susan E. Steck, Indrani Sarkar, Elizabeth T.H. Fontham, Alan Diekman, Lora J. Rogers, Calvin T. Ratliff, Jeannette T. Bensen, James L. Mohler, L. Joseph Su

School of Public Health Faculty Publications

Background: Studies showed that folate and related single nucleotide polymorphisms (SNPs) could predict prostate cancer (PCa) risk. However, little is known about the interactions of folate-related SNPs associated with PCa aggressiveness. The study’s objective is to evaluate SNP–SNP interactions among the DHFR 19-bp polymorphism and 10 SNPs in folate metabolism and the one-carbon metabolism pathway associated with PCa aggressiveness. Methods: We evaluated 1294 PCa patients, including 690 European Americans (EAs) and 604 African Americans (AAs). Both individual SNP effects and pairwise SNP–SNP interactions were analyzed. Results: None of the 11 individual polymorphisms were significant for EAs and AAs. Three SNP–SNP …


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