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Rice Buffer Stock Maintenance Post-Rice Tariffication Law (Ra11203): An Application Of A Partial Equilibrium Model For Buffer Stock Level Optimization, Mary Gillian Santos, Marites Tiongco, Arlene Inocencio, Caesar Cororaton

DLSU Business & Economics Review

The Rice Tariffication Law or RA 11203 was created for the purpose of achieving food security, lowering prices at the consumer level, and making the rice industry more competitive. The opening up of the domestic rice market led to the removal of the National Food Authority’s (NFA) licensing & regulatory powers which shifted their mandate solely on maintaining an optimal level of buffer stock primarily for emergency situations. To fulfill this mandate, the NFA must anticipate and account for emergencies & uncertain events in their current operations. This paper presents an application of a Partial Equilibrium Rice Model to determine …

Truth Bounties: A Market Solution To Fake News, Yonathan A. Arbel, Michael D. Gilbert

Articles

False information poses a threat to individuals, groups, and society. Many people struggle to judge the veracity of the information around them, whether that information travels through newspapers, talk radio, TV, or social media. Concerned with the spread of misinformation and harmful falsehoods, much of the policy, popular, and scholarly conversation today revolves around proposals to expand the regulation of individuals, platforms, and the media. While more regulation may seem inevitable, it faces constitutional and political hurdles. Furthermore, regulation can have undesirable side effects and be ripe for abuse by powerful actors, public and private.

This Article presents an alternative …

Effect Of The Lifestyle, Exercise, And Nutrition (Lean) Weight Loss Intervention On Anxiety Among Breast Cancer Survivors, Faiad Alam

Public Health Theses

Background: Lifestyle interventions can be an important tool in improving quality of life (QOL) among breast cancer survivors. Anxiety has been improved in some, but not all, exercise or lifestyle interventions that have investigated this component of QOL. Therefore, we sought to examine the impact of the 6-month Lifestyle, Exercise, and Nutrition (LEAN) intervention vs. usual care on anxiety among women who completed treatment for breast cancer. Methods: A total of 151 breast cancer survivors participated in the LEAN study, and 116 participants were included in this secondary analysis. State anxiety was assessed via the state anxiety portion of the …

Bmi's Early Echo: Deciphering Adolescent Body Mass Indicator On Adulthood Breast Cancer, Tianyu Feng

Public Health Theses

This study aimed to explore the association between body mass index (BMI) during adolescence and the risk of breast cancer in adulthood among a Chinese female population. We conducted a nested case-control study within a prospective cohort comprising 62,487 Chinese women aged 25-55 years. Adolescent BMI was retrospectively collected via interviewer-administered questionnaires and analyzed as the primary exposure variable. Breast cancer incidence served as the primary outcome. Propensity Score Matching (PSM) was employed to adjust for confounding variables, such as socioeconomic status, lifestyle factors, and adult BMI.Of the 9,163 participants eligible for analysis, 57 breast cancer cases were identified during …

Polypharmacy Is Associated With Biomarkers Of Cognitive Frailty In Older People With Hiv, Priya Kosana

Public Health Theses

Background: Little is known on the impact of taking multiple medications in older people with HIV (PWH), who have higher rates of medical comorbidities than HIV uninfected individuals. We assessed the prevalence and clinical impact of polypharmacy among a large, mixed gender cohort of PWH, and assessed for the relationship between polypharmacy and clinical and laboratory-based biomarkers of cognitive frailty.Methods: We used data from the AIDS Clinical Trials Group (ACTG) A5322 (HAILO) cohort of PWH aged 40 or older with plasma HIV RNA levels below 200 copies/µL from 2013 to 2014 study visits. We assessed the relationship between polypharmacy ( …

Effect Of A Weight-Loss Intervention On Oxidative Stress Biomarkers Among Breast Cancer Survivors In The Lifestyle, Exercise, And Nutrition (Lean) Study, Yiyi Li

Public Health Theses

Introduction: As the number of breast cancer survivors increases, ensuring quality of life during the survivorship period is important. Obesity may induce oxidative stress, which may be relevant mechanistically for adverse health outcomes among breast cancer survivors. Diet, exercise, and weight loss may mitigate oxidative stress, yet few lifestyle trials have investigated if these interventions have impacted oxidative stress. Therefore, we conducted a secondary analysis in a 6-month weight loss randomized controlled trial, the Lifestyle, Exercise, and Nutrition (LEAN) study, among breast cancer survivors with a body mass index (BMI) ≥ 25 kg/m2 to evaluate the effect of the intervention …

Exploring The Use Of Mobile Health Application To Promote Self-Managment Of Cardiovascular Disease: A Study Of Age-Related Differences And Technology Adoption Among Chinese Patients, Yunan Mei

Public Health Theses

Background: Cardiovascular diseases (CVD) are the leading cause of mortality globally, particularly in China's aging population. Mobile health (mHealth) technologies offer a promising avenue to address healthcare disparities and enhance CVD management among the elderly. This study aims to explore the acceptance of mHealth in improving self-management of CVD among older adults in China, focusing on its potential to mitigate accessibility and treatment challenges.

Methods: This cross-sectional study was conducted at the Xinhua Hospital of Shanghai Jiao Tong University. Data were collected using an online Qualtrics questionnaire from 225 participants who met inclusion criteria including being Chinese speakers, diagnosed with …

Exploring The Connections Between The Arts And Mental Health In The Face Of Climate Change, Marla Joy Minkoff

Public Health Theses

Objective: This study aims to explore how engagement with art may shape emotions related to the climate crisis and expand the conception of art as a mechanism of public health practice.Background: Climate change impacts human health not only physically but also psychologically, manifesting in symptoms of climate emotions (e.g., ecological grief, eco-anxiety, eco-paralysis) that arise as a result of changes to the earth and our relationship to the natural world. These symptoms are among the pressing mental health effects of climate change. Methods: A qualitative approach utilizing the Rapid Assessment Process (RAP) was employed to conduct semi-structured interviews (N=10) with …

Exploring The Association Between The Supplemental Nutrition Program For Woman, Infants And Children (Wic) And Gestational Weight Gain, Oyinlola Obatolu

Public Health Theses

Background: The Special Supplemental Nutrition Program for Women, Infants and Children (WIC) has been an impactful federal public assistance program that has provided nutrition education and support to millions of low income women and children around the country. Despite its positive impact on perinatal and birth outcomes, the precise mechanisms between WIC and these outcomes remain unclear. Past studies have looked at the relationship between WIC and gestational weight gain (GWG), a potential mediator of the effect of WIC on birth outcomes, but they have mainly focused on city or state level data or Medicaid enrollees. This study aims to …

“Their Body, Their Choice. Your Body, Your Choice. Your Baby, Your Choice.”: A Reflexive Thematic Analysis Of Vaccine Access And Acceptance Among U.S. Pregnant People On Reddit, Sydney Marie Perlotto

Public Health Theses

Compared to the general population, pregnant people and newborns are at a higher risk of contracting infectious diseases and experiencing worse adverse outcomes. Vaccines delivered during pregnancy, known as prenatal vaccines, represent a critical yet underused form of preventive care for these populations in the United States. Increasing successful prenatal vaccination uptake requires a focus on both access and acceptance, which pregnant people may experience differently than non-pregnant people due to their unique physiological and social state. Given the evolution of vaccine hesitancy following the COVID-19 pandemic, coupled with the recent expansion of the U.S. prenatal immunization schedule, this study …

Greening And Mental Distress: Effect Modification By Housing Tenure, Saira Prasanth

Public Health Theses

Access to high-quality residential greenspace is associated with improved long-term health, particularly mental health. However, many interventions to promote “greening” or increased greenspace in urban areas have been shown through numerous qualitative studies to exacerbate environmental and health inequities, primarily through green gentrification. Our objective was to quantify the association between greenspace and mental distress in the U.S. as well as evaluate whether the association between greenspace and mental distress is modified by housing tenure. We hypothesized that increased greenspace was associated with reduced mental distress, and that this effect was more protective among homeowners than non-homeowners. Mental distress and …

Macronutrient Intake In Us Adults: Race, Gender, Age, Education, Ana Karina Raygoza Cortez

Public Health Theses

Background: The US has seen a consistent increase in obesity rates over the last sixty years across all racial and ethnic groups, with similar trends even among privileged groups. This study examines Macronutrient intake trends in US adults from 1999-2018 and their association with demographic factors: race ethnicity, age, gender, and education.

Methods: We conducted a serial cross-sectional analysis of US adults using 24-hour dietary recall data from 10 NHANES survey cycles (1999-2018). Piecewise regression models identified significant dietary pattern changes over time, by demographic groups. Statistical analysis was done in R and SAS utilizing NHANES sampling weights.

Results: Study …

The Synergistic Intersection Of Two Public Health Crises: Increased Risk Of Fatal Opioid Overdose Following Extreme Temperature Events, Anna Stouffer

Public Health Theses

Background: The opioid crisis and climate change are two severe public health crises. There may be a synergistic relationship between the two, as extreme temperatures events (both hot and cold) may alter behavior and cause physiological stress that makes fatal opioid overdose more likely. Methods: We analyze the association between fatal opioid overdose and extreme temperature exposure using a case-crossover design and a distributed lag non-linear model, which allows us to look at the odds of death 0-6 days after temperature exposure. We used death records from North Carolina and daily county-level temperature exposures. The analyses were conducted on data …

“I Don't Work For The Prison. I Don't Work For The Hospital Either. I’M Yours. Who Else Here Is Yours?” A Qualitative Analysis Of Facilitators And Barriers Of Launching Enhanced Perinatal Programs In Seven State Prisons, Karenna Thomas

Public Health Theses

The United States incarcerates women at the highest rate globally (Fair & Walmsley, 2022), while simultaneously failing to provide incarcerated individuals with adequate reproductive health care. Perinatal programs, including a combination of one-on-one and group prenatal and postpartum education, labor and birth support with a doula, separation support, and lactation care have been implemented as an alternative to standard care in around 21 states (Wilson et al., 2022). While the efficacy of these programs among incarcerated individuals has been established (Bard et al., 2016; Barkauskas et al., 2002; Schroeder & Bell, 2005; Shlafer et al., 2018; Shlafer, Saunders, Boraas, et …

Birth Characteristics, Outdoor Artificial Light At Night, Ambient Air Pollution And The Risk Of Hepatoblastoma In Young Children, Peiyi Wang

Public Health Theses

Objective: The etiology of hepatoblastoma, the predominant malignant liver tumor in infancy and early childhood, is unclear. We assessed possible associations between birth characteristics, outdoor artificial light at night (ALAN), ambient air pollution (measured by particulate matter PM2.5), and the risk of hepatoblastoma.

Methods: Leveraging a population-based linkage of statewide birth records and cancer registry data in California, we conducted a case-control study that included 356 hepatoblastoma cases diagnosed at the age of 0-6 years during 1988-2015 and 17,800 controls frequency-matched by birth year. Restricted cubic spline transformation was employed to evaluate non-linear associations. Multivariable logistic regression models were used …

Cost-Effectiveness Analysis Of Alternative Infant And Neonatal Rotavirus Vaccination Schedules In Malawi, Catherine Wenger

Public Health Theses

Rotavirus is the leading cause of cases and deaths related to diarrhea-related hospitalizations among children under five worldwide, especially in low- and middle- income countries. Although vaccination is proven to be the best strategy for preventing rotavirus, its impact has been suboptimal in LMICs.

The primary aim of this study was to evaluate the impact of and cost- effectiveness of the current Rotarix rotavirus vaccine, two alternative vaccine delivery schedules, and the next-generation vaccine (RV3-BB) in Malawi.

The cost-effectiveness of rotavirus vaccine strategies in Malawi was evaluated using moderate-to-severe and non-severe rotavirus cases derived from a mathematical model ofrotavirus transmission …

Prevalence Of Perinatal Depression In Us Residents: Analysis Based On Nhanes 2017-2020 Pre-Pandemic, Yian Wu

Public Health Theses

Objective:Perinatal depression, affecting over 10% of pregnant and postpartum women globally, is a significant but often underrecognized mental health issue. Untreated symptoms can persist for years, highlighting the need for early intervention. This study, using the most recent National Health and Nutrition Examination Survey (NHANES) data available, aims to assess trends in perinatal depression prevalence and mental health care utilization in US. Methods: NHANES data from 2017 to March 2020 were analyzed, focusing on pregnant and postpartum women who had given birth within the last 24 months as the target population. The Patient Health Questionnaire (PHQ-9) was used to assess …

Assessing The Correlation Between Per- And Polyfluoroalkyl Substances (Pfas) Exposure And Cancer Incidence In The U.S., Xiaoqing Zhang

Public Health Theses

AbstractThe study seeks to understand the relationship between key PFAS contaminants and their potential to cause cancer in the United States. It also aims to find out how different PFAS exposures affect different types of cancer and how food can increase or decrease the risk of getting cancer. The study used secondary data from the government and other reliable sources. The process looked at PFAS exposure, food malnutrition, and cancer rates in the population by using both descriptive and inferential statistics. After looking at socio-economic factors and their health effects on the public, the results showed that PFOS, PFHxS, and …

Do Rental Assistance Programs Relieve Overcrowding In U.S. Children?, Frank Zhu

Public Health Theses

Introduction: Crowded living conditions are associated with many negative health outcomes, with significant implications for children, as they are particularly shaped by their home environment and more likely to live in crowded conditions, given their larger household size. How rental assistance programs may shape and improve household crowding has not been previously explored. Methods: This study leveraged data from NHANES linked with HUD administrative rental assistance records. We examined changes in crowding measures in U.S. children using linear and logistic regression models stratified by different rental assistance program types. Results: There was a statistically significant 40 percentage point reduction in …

Remotely Sensed Assessments Of Malnutrition In South Sudan, Rebecca Chausse

Public Health Theses

South Sudan is consistently considered the hungriest country in the world further exasperated by armed conflict and extreme climate events such as drought and flooding. This thesis includes a remote sensing analysis of thermal activity to assist in identifying areas with higher or lower Integrated Food Security Phase Classification (IPC) scales in certain contexts. Key Findings reveal a statistically significant negative correlation between U.S. dollar price of cereals and tubers and observed thermal activity (p-value=0.0280703, rho=-0.6727273), indicating that an increase in one variable may coincide with a decrease in the other within Rumbek Centre and Gogrial West. These findings may …

Exploring The Role Of Bacteroidales In Human Health: A Comprehensive Literature Review On Their Associations With Selected Diseases, Tingyue Wang

Public Health Theses

Bacteroidales are a vital group of gut bacteria that significantly contribute to human health by maintaining gut balance. However, their abundance is often altered in various diseases, indicating a strong association with disease progression and immune responses. This review categorizes Bacteroidales into clusters based on metabolic phenotypes, suggesting similarities in their metabolic pathways.

To explore the relationship between Bacteroidales species and human health, we conducted a comprehensive literature review. We compiled a list of 16 Bacteroidales species and performed targeted searches in PubMed using keywords related to inflammation and immunity. This process helped us identify relevant diseases, focusing on those …

Mechanisms For Regenerative Intervertebral Disc Healing During Early Growth In Mice, Danielle N. D'Erminio

Dissertations and Theses

Annulus Fibrosus (AF) defects of intervertebral discs (IVDs) cause painful disability, for example when herniated tissue compresses against adjacent nerves. Discectomy, the current standard of treatment to address herniation, does not repair AF defects and can result in re-herniation and recurrent pain. As such there is a need for improved AF repair strategies. It has previously been established that neonatal mice functionally regenerate following severe AF injury providing a model of successful innate AF repair processes that contrasts the poor healing of adult mice. This dissertation focuses on identifying mechanisms of AF regenerative healing in neonatal mice subjected to severe …

A Qualitative Exploration Of Psychodynamic Therapist's Experiences When Working With Parents In Child And Adolescent Psychotherapy, Marie-Clair Siegman

Dissertations and Theses

A Qualitative Exploration of Psychodynamic Therapist's Experiences of Working with Parents in Child and Adolescent Psychotherapy.

By

Clair Siegman, MA

Advisor: Steve Tuber, PhD

The aim of this study was to identify how therapists incorporate parent-work into their practices and explore the experiences related to this. The literature on engaging parents during child treatment suggests that it is a central to improving outcomes. Research about the treatment alliance that develops between the therapist and parent is limited, especially when considering the therapist perspective. Literature within the psychodynamic and psychoanalytic fields, suggests therapists have a hesitance to working with parents either …

From Expectations To Experiences: Students’ Perceptions Of Specifications Grading In Higher Education, Adriana Streifer, Michael Palmer, Jessica Taggart

International Journal for the Scholarship of Teaching & Learning

Specifications grading is a form of alternative grading that emphasizes transparency, low stakes, student learning, and equity. It has attracted practitioners for its potential to enhance student motivation, and to remedy several challenges of traditional grading. Specifications grading has become increasingly popular, yet little is known about students' perceptions of and experiences with it. We examined students’ predicted and actual experiences of specifications grading in courses across several disciplines at a research-intensive, public university in the United States. Particular attention was paid to how students perceive specifications grading to influence their motivations to learn. Most students expressed positive attitudes toward …

Mentalized Affectivity And Its Role In Acculturative Adjustment And Well-Being, Bassem Barada

Dissertations and Theses

Immigration is a phenomenon that occurs on a global scale and continues to grow in prevalence to our present day. Therefore, acculturation remains an essential area of interest for the mental health field. Specifically, assessment of identification with either one’s ethnic culture or the dominant culture remains a robust way to capture acculturative adjustment (Chance, 2015). More recently, emotion regulation has emerged as an important construct in understanding wellbeing. Mentalized affectivity (MA) is an insight-based regulatory process that highlights the importance of understanding current emotional distress in the context of one’s past history (Jurist, 2005). The three dimensions of emotion …

Catalyzing Communities Of Research Rigour Champions, Audrey C Brumback, William X Q Ngiam, Dana M Lapato, David B Allison, Christin L Daniels, Michael Dougherty, Haley F Hazlett, Kara L Kerr, Susan Pusek, Naomi Schrag

Children’s Nutrition Research Center Staff Publications

The biomedical sciences must maintain and enhance a research culture that prioritizes rigour and transparency. The US National Institute of Neurological Disorders and Stroke convened a workshop entitled 'Catalyzing Communities of Research Rigor Champions' that brought together a diverse group of leaders in promoting research rigour and transparency (identified as 'rigour champions') to discuss strategies, barriers and resources for catalyzing technical, cultural and educational changes in the biomedical sciences. This article summarizes 2 days of panels and discussions and provides an overview of critical barriers to research rigour, perspectives behind reform initiatives and considerations for stakeholders across science. Additionally, we …

A Comprehensive Review Of Advances In Hepatocyte Microencapsulation: Selecting Materials And Preserving Cell Viability, Hailian Wang, Lebin Wen, Fengdi Jiang, Pengyu Ren, Yixin Yang, Siyuan Song, Zhengteng Yang, Yi Wang

Children’s Nutrition Research Center Staff Publications

Liver failure represents a critical medical condition with a traditionally grim prognosis, where treatment options have been notably limited. Historically, liver transplantation has stood as the sole definitive cure, yet the stark disparity between the limited availability of liver donations and the high demand for such organs has significantly hampered its feasibility. This discrepancy has necessitated the exploration of hepatocyte transplantation as a temporary, supportive intervention. In light of this, our review delves into the burgeoning field of hepatocyte transplantation, with a focus on the latest advancements in maintaining hepatocyte function, co-microencapsulation techniques, xenogeneic hepatocyte transplantation, and the selection of …

Sustainability Via Active Garden Education (Sage): The Process Of Incorporating Watering Into Structured Preschool Curriculum, Rebecca E Lee, Anel Arriola, Elizabeth Lorenzo, Erica G Soltero, Jacob Szeszuski

Children’s Nutrition Research Center Staff Publications

School gardens provide rich outdoor learning opportunities for young children. Practical considerations about garden maintenance, in particular, watering, can impeed success. This manuscript chronicles the development of garden maintenance strategies in Sustainability via Active Garden Education (SAGE). SAGE installed raised-bed gardens and provided a complete curriculum focused on increasing children's active time and improving healthy eating habits while fostering garden stewardship. SAGE was implemented by trained research personnel in four early care and education (ECE) facilities in Houston, Texas (SAGE 1, Summer, 2013), one ECE facility in Phoenix, Arizona (SAGE 2, Spring, 2017), and 24 ECE facilities in Phoenix, Arizona …

Adjusting For Covariates Representing Potential Confounders, Mediators, Or Competing Predictors In The Presence Of Measurement Error: Dispelling A Potential Misapprehension And Insights For Optimal Study Design With Nutritional Epidemiology Examples, Roger S Zoh, Diana M Thomas, Carmen D Tekwe, Xiaoxin Yu, Colby J Vorland, Nikhil V Dhurandhar, David M Klurfeld, David B Allison

Children’s Nutrition Research Center Staff Publications

Background: Variables such as dietary intake are measured with error yet frequently used in observational epidemiology. Although this limitation is sometimes noted, these variables are still often modeled as covariates without formal correction or sincere dialogue about measurement unreliability potentially weakening the validity of statistical conclusions. Further, larger sample sizes increase power (bias) to detect spurious correlations. Counterintuitively, recent work suggested a non-monotonic relationship between confounder unreliability and how much controlling for the confounder reduces (or induces) bias when testing for an exposure-outcome association. If true, such non-monotonicity would be especially concerning for applications such as nutrition, where measurement reliability …