Digital Commons Network^™

A Feasibility Study Of Sexual Organ-Dose Sparing Volumetric Modulated Arc Therapy In Female Low Rectal Cancer Patients Treated With Three-Dimensional Conformal Radiation Therapy, Margaret Downes, Victoria Olsen, Andre Williams, Rendi Sheu, Maria Thor, Lucy Greenwald, Vishruta Dumane, Kristin Hsieh, Ayesha Ali, Orly Morgan, Michael Buckstein, Deborah Marshall

Department of Radiation Oncology Faculty Papers

BACKGROUND: Sexual dysfunction is a significant toxicity of pelvic radiation therapy (RT) for female rectal cancer patients and may be more common with intensity-modulated techniques compared to three-dimensional conformal radiation therapy (3D-CRT). However, limited research has evaluated dose sparing of female sexual organs at risk (OARs), particularly erectile tissues that are critical for sexual function.

PURPOSE: This feasibility study aimed to demonstrate the practicality of contouring and sparing female sexual OARs in rectal cancer RT by generating sexual organ-sparing volumetric modulated arc therapy (SO-VMAT) plans from a small 3D-CRT cohort and comparing dose distributions to guide future planning.

METHODS: Nine …

Culture-Dependent Characterization Of Microbial Succession And Persistence In The Integrated Lunar/Martian Analog Habitat (Ilmah), Haley Olivia Boles

Theses and Dissertations

This study examines culture-dependent microbial monitoring in a closed lunar/Martian analog habitat, focusing on viable community dynamics relevant to long-duration missions. A standardized sampling and cultivation pipeline was implemented in ILMAH to track microbial succession and persistence under realistic operational conditions. Surface samples were collected across eight habitat zones at five mission timepoints (Days 0, 5, 10, 15, 20) during a 21-day crewed mission. Samples were concentrated post-collection and plated on chromogenic film media to quantify total aerobic bacteria (AC-R), fungi (YM-R), E. coli (EC), and S. aureus (SA). Plates were imaged and enumerated digitally; representative colonies were isolated and …

An Update On Novel Taxa And Revised Taxonomic Status Of Bacteria Isolated From Human Clinical Specimens Described In 2024, Arianna Carella, Karen C. Carroll, Erik Munson

Clinical Lab Sciences Faculty Research and Publications

Knowledge of novel and revised bacterial taxonomy facilitates routine operations in the medical microbiology laboratory and communication with important stakeholders. Notable new gram-positive taxa accepted in 2024 include the clinically significant Staphylococcus brunensis sp. nov., as well as Streptococcus suis subsp. hashimotonensis subsp. nov., which can be delineated from other Streptococcus suis subsp. by possession of the Lancefield group A antigen. Four novel Enterobacterales species are discussed, plus a novel eighth family Gallaecimonadaceae. One of these, Providencia huashanensis sp. nov. is clinically significant and harbors multiple genetic determinants that encode antimicrobial resistance mechanisms. Stenotrophomonas forensis sp. nov., derived from …

Living With Dementia In Kenya: Pathways To Care, Diagnosis And Management, Edna Bosire

Institute for Human Development, East Africa

Background: Sub-Saharan Africa (SSA) is experiencing a sharp rise in the size of theolder population; consequently, the incidence and prevalence of Alzheimer’s DiseaseRelated Dementias (AD/ADRD) is also expected to rise. There is limited research onAD/ADRD lived experiences have been conducted in SSA including Kenya. Our projectaimed to explore patient’s and caregivers lived experiences with Alzheimer’s disease inKenya.

Methods: This ethnographic study was conducted at the Aga Khan University hospital(AKUH), involving in-depth interviews with 21 health care providers, 26 patientswith mild cognitive impairment and 36 caregivers. We also conducted 10 homevisits and observations. Data were transcribed verbatim and thematically analysed.In what …

A Low-Power Mixed-Signal Potentiostat System-On-Chip With Integrated Dual-Slope Adc, Seth Mcrobert

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

This thesis presents the design and characterization of a low-power mixed-signal potentiostat that was integrated with a 65 nm core in a SoC for low-power electrochemical sensing applications. The system integrates a low-noise transimpedance-based potentiostat front end with a 12-bit dual-slope analog-to-digital converter (ADC) for accurate current-to-digital conversion. The potentiostat core—comprising the control amplifier, current-mirror network, and transimpedance amplifier—consumes 38.2 µA from a 2.5 V supply (95.5 µW) and achieves an input-referred noise floor of 113 µVRMS over a 330 Hz bandwidth, while having an input current range from 1 nA to 20 µA and a noise-limited sensitivity of 56.4 …

Drought, Worry, And Preparing For The Future: The Ethnopsychology Of Climate Distress In Kilifi County, Kenya, Edna Bosire, Syed Wahid, Linda Khakali, Benjamin Oestericher, Felix Agoi, Anthony Ngugi, Rosebella Iseme, Jasmit Shah, Zul Merali, Lukoye Atwoli

Brain and Mind Institute

The impacts of climate change in sub-Saharan Africa (SSA) presents a chronic and intensifying disaster, with drought, flooding, and extreme heat, presenting unique challenges and profound disruptions. Growing evidence links such events to ecological grief, ecological anxiety, and solastalgia – negative affective states that reflects responses to climate change related destruction of nature, species, culturally significant or sacred spaces, and other ways of life. While this literature is expanding in the Global North, little is known about how communities in SSA perceive and respond to deteriorating or depleting natural ecosystems. This article explores the ethnopsychology of distress precipitated by environmental …

Blood-Based Clinical Markers For Early Dementia Detection: Insights From Ad-Detect-Cohort, Benard Aliwa, Jasmit Shah, Olivera Nesic Taylor,, Samuel Nguku, Juzar Hooker, Dilraj Sokhi, Sylvia Mbugua, Litha Musili, Rachel Maina, Harrison Kaleli, Levi Muyela, Anne Njoki Gitere, Anne Nyambura, Zul Merali, Karen Blackmon, Chinedu Momoh

Brain and Mind Institute

Background: Over 55 million people worldwide live with dementia, with more than60% residing in low- and middle-income countries. Alzheimer’s disease, the mostcommon form of dementia, accounts for 60–70% of cases. Early and accurate diagnosisremains a global challenge, necessitating novel approaches to mitigate the diseaseburden. Biomarkers hold significant promise in improving diagnostic accuracy andpredicting disease progression. Validated biomarkers for the preclinical stages ofdementia are crucial for advancing diagnosis and therapeutic strategies. We aimedto identify potential clinical markers for early dementia detection and assess theirpredictive accuracy in identifying high-risk individuals.

Method: We analyzed blood samples from dementia cases (n = 30) and …

Community Perspectives On Factors Contributing To Resilience For Healthy Aging In Kenya, Linda Khakali, Everline Onchari, Maureen Ondire, Catherine Onyancha, Chinedu Momoh, Edna Bosire

Brain and Mind Institute

Background: The global elderly population is increasing and expected to double in thenext decade. Aging increases the likelihood of adversities, with resilience becomingan important aspect of healthy aging. Understanding how individuals conceptualizeresilience offers an opportunity to create contextually relevant interventions forpromoting healthy aging. This study aimed to explore adults’ perspectives on factorsinfluencing resilience in Kenya.

Method: Using qualitative methods, 36 adults aged 35 years and above werepurposively recruited from various communities in Nairobi County to participate ininterviews. We asked questions about their understanding of aging, adversity andresiliency. We also provided them with case scenarios of two individuals respondingdifferently to the …

Reassessing Dementia Risk: Expanding The 2024 Lancet Commission Report For A More Accurate Global Understanding, Cyprian Mostert

Brain and Mind Institute

Background: The 2024 Lancet Commission Report analyzes 14 risk factors thataccount for 45 percent of global dementia cases. However, it overlooks four criticalrisk factors: poverty, wealth shocks, income inequality, and viral infections. This isparticularly concerning given that 57 percent of the identified risk factors in theLancet report are more prevalent in men, even though dementia predominantly affectswomen worldwide.

Method: In this policy paper, we used the recent global review studies and argue that itis essential to recalibrate and expand the 2024 Lancet Commission’s list of risk factorsto include poverty, wealth shocks, income inequality, and viral infections. Our analysissuggests that these …

Understanding And Willingness To Participate In Dementia Clinical Trials In Kenya: An Ethnographic Study, Edna Bosire, Lucy Kamau, Chinedu Momoh, Jasmit Shah, Karen Blackmon, Caroline Kiio, Irene Meier, Vaibhav Narayan, Olivera Nesic Taylor,, Zul Merali

Brain and Mind Institute

Background: Advancements in dementia research are in part contingent on participation in clinical research. Clinical trials can help researchers determine if new drugs, devices, or diagnostic procedures for dementia are safe and effective. However, little is known about clinical trials for dementia in resource constrained settings such as Kenya. The aim of our research was to explore people’s understanding of dementia clinical trials, their attitudes and perceptions towards dementia clinical trials and what can be done to enhance enrollments on such clinical trials.

Method: This was an ethnographic study involving 8 focused group discussions (FGDs; age and gender stratified; n=81) …

Perceptions And Attitudes On Biospecimen Sample Collection For Dementia Research In Kenya, Lucy Kamau, Chinedu Momoh, Karen Blackmon, Caroline Kiio, Jasmit Shah, Vaibhav Narayan, Irene Meier, Olivera Nesic Taylor,, Zul Merali, Edna Bosire

Brain and Mind Institute

Background: Biospecimen sample collection is crucial in dementia diagnosis and evaluation. Limited research exists from African Countries including Kenya on people's perception on biospecimen sample collection for dementia- a disease that is largely unknown. Our aim was to understand the public perceptions towards collection of biospecimen samples for dementia research in Kenya.

Method: We conducted 8 focused group discussions (FGDs; age and gender stratified) in Nairobi to understand people's perceptions about different biospecimens (urine, saliva, blood, tears, hair, cerebrospinal fluid (CSF) and the brain samples). An open-ended FGD guide was used for the discussions, each lasting about 90 minutes.

Result: …

From Pandemic Fix To Routine Care: How Can Telemedicine Be Effectively Implemented For Individual Health Services In The Philippines?, Dlsu Social Development Research Center

SDRC Projects

This policy brief presents findings from the 2024–2025 process evaluation of telemedicine implementation in the delivery of individual-based health services in the Philippines. Guided by the Organisation for Economic Co-operation and Development–Development Assistance Committee evaluation criteria and the World Health Organization health-system building blocks, the evaluation used policy and document reviews, key informant interviews, focus group discussions, and provider and patient surveys. The findings show that telemedicine remains relevant and can reduce travel and waiting times, improve continuity of care, and decongest health facilities. However, formal implementation remains limited and uneven. Many providers rely on commercial messaging and video platforms …

Closing The Gap Between Coverage And Care: Findings And Recommendations From The Philhealth Konsultasyong Sulit At Tama (Konsulta) Process Evaluation, 2021–2024, Dlsu Social Development Research Center

SDRC Projects

This policy brief presents the findings and recommendations of the 2021–2024 process evaluation of the Philippine Health Insurance Corporation’s Konsultasyong Sulit at Tama (Konsulta) Package. The evaluation examined the program’s relevance and coherence, effectiveness, efficiency, sustainability, and equity using policy and document reviews, national administrative data, fieldwork in selected regions, interviews and focus group discussions, and a stated-preference survey and costing exercise. The findings show that Konsulta expanded rapidly in terms of beneficiary registration, provider presence, and geographic reach. However, significant gaps remain in continuity of care, access to diagnostics and medicines, private-provider participation, payment efficiency, information systems, and implementation …

Piezoelectric Energy Harvesting From Roadways: Challenges, Advances, And Future Directions, Heba Mohamed Gaber, Mohamed Abdel-Raheem

Civil Engineering Faculty Publications

As the global demand for renewable energy intensifies, piezoelectric energy harvesting from roadways has emerged as a promising avenue for sustainable power generation. This systematic literature review analyzes 61 peer-reviewed studies to assess the feasibility, performance, and potential of integrating piezoelectric systems into roadway infrastructure. While technology faces challenges, such as high installation costs, limited energy output, and a scarcity of thorough economic evaluations, findings suggest it holds considerable promise as a supplementary renewable energy source. The review analyzes the operational characteristics and efficiencies of various piezoelectric transducers, identifies key factors influencing system performance, and evaluates recent technological advances. It …

Case Presentation: Unilateral Neuroforaminal Widening/Expansion On Cervical Radiograph, Mya J. Reese

Aurora GME

No abstract provided.

Mda At Your Service: A Deaf Person Wants To Become My Patient, Rachel Sinacola Dds, Ms

The Journal of the Michigan Dental Association

The column clarifies that under the Americans with Disabilities Act (ADA), dental offices must provide auxiliary aids or services for patients with hearing impairments, which may require a professional interpreter paid for by the dentist in complex visits. Members are encouraged to notify the MDA about practice/life changes (e.g., address changes or caseload shifts) to ensure proper benefits and dues discounts. New associates are strongly urged to utilize the MDA resource for contract review, which offers a 10% discount with Kerr Russell Attorneys. Additionally, the MDA Store provides free Labor Poster Packets, fulfilling state and federal employer requirements.

Mda Insurance: Offer Group Health Insurance To Entice Recruits, Retain Valuable Staff, Craig Start

The Journal of the Michigan Dental Association

Amidst a competitive labor market, offering group health insurance is critical for attracting and retaining qualified dental staff, as it is the most highly valued employee benefit. Dentists can establish an employment policy stipulating cost-sharing for premiums, rather than paying the entire cost. The MDA strongly encourages investigating the exclusive MDA Health Plan, which offers 11 distinct plan designs powered by Priority Health. For 2026, the MDA Health Plan is increasing rates by only 4%, significantly lower than commercial group plans requesting double-digit increases (10% to 18%). Plans can be started at any time during the year, requiring about 30 …

Back Page: 9th District Delegation Attends Ada House Of Delegates, Michelle M. Nichols-Cruz

The Journal of the Michigan Dental Association

The ADA 9th District delegation, representing Michigan and Wisconsin, attended the ADA House of Delegates meeting in Washington, D.C., in October, which coincided with the ADA SmileCon event. During the meeting, Dr. Deb Peters, former MDA president and MDA House Speaker, was elected Speaker of the ADA House. This historic election makes Dr. Peters the first female ADA speaker. Dr. Michele Tulak-Gorecki, outgoing 9th District ADA trustee, was unsuccessful in her bid for ADA president-elect. The next ADA House meeting is scheduled for October 10-13, 2026, in Indianapolis, Indiana.

J Mich Dent Assoc December 2025

The Journal of the Michigan Dental Association

Each month, the Journal of the Michigan Dental Association delivers news, information, and features about Michigan dentistry to our state's oral health community and the MDA's 6,200+ members. It remains the main publication reaching Michigan dentists and is available worldwide through ADA Commons. The December 2025 (Volume 107, No. 11) issue of the Journal is published in a digital-only format to provide updates and insights for Michigan's oral health community and MDA members. Print editions will resume in the new year.

This issue includes feature articles on the Michigan Dental Foundation, A Case for Credentialing Dental Assistants, and a feature …

The Case For Credentialing Dental Assistants, Michelle Godofsky

The Journal of the Michigan Dental Association

Credentialing dental assistants is presented as a method to enhance productivity and address workforce shortages; currently, only about 15% of Michigan dental assistants are Registered Dental Assistants (RDAs). A case study at Thunder Bay Community Health Service, an FQHC in Northern Michigan, illustrates success, where RDAs perform expanded functions—like placing restorations and monitoring nitrous oxide—boosting clinic productivity by 16%. The clinic supports its dental assistants by covering education and exam expenses and providing study time during work hours. This investment improves job satisfaction, confidence, morale, and patient communication among staff, strengthening employee retention.

Here’S What’S New — Coming To The 2026 Mda Annual Session, Andrea Sunderman, David Foe

The Journal of the Michigan Dental Association

The 2026 MDA Annual Session, held April 30 – May 2 at DeVos Place in Grand Rapids, will feature significant improvements. The major change eliminates cumbersome a la carte pricing for courses. Instead, attendees can purchase a one-day pass or a full conference package, granting access to any course without advance sign-up. The schedule is shortened to two-and-a-half days. Passes include a hot lunch in the Exhibit Hall on Thursday and Friday, and courses are streamlined to allow more time for vendor visits and socializing. The event will also feature three keynote addresses and a new Friday night social event, …

2025 Author/Title Index To The Journal Of The Michigan Dental Association, Jackie Hammond

The Journal of the Michigan Dental Association

This comprehensive resource indexes articles published throughout 2025 in the Journal of the Michigan Dental Association. The content covers a wide range of topics relevant to Michigan dentistry, practice management, and legal compliance. Articles include findings on dental utilization rates pre- and post-COVID, legal guidance on issues like covenants not to compete and dental records, and clinical topics such as treating children with special needs. The index also features reports on MDA membership, the Foundation’s work, and analyses of generational differences in the workforce.

Case Presentation: 40 Year-Old Female With Chronic Neck And Low Back Pain, Chloe Nilles

Aurora GME

No abstract provided.

A Psychometric Evaluation Of The Pbss-20 Among Sexual And Non-Sexual Minority College Students, Alex Melville

Master's Theses

This study evaluated the psychometric properties of the Protective-Behavioral Strategies Scale-20 in a large national sample of college students containing sexual minority and non-sexual minority students. Specifically, confirmatory factor analysis was used to evaluate the model fit with this sample, invariance testing was used to compare the model among sexual and non-sexual minority students, and construct validity was evaluated. Participants included college students (N = 1,730; M_age = 19.41) from 12 universities across the United States, who were predominantly White non-Hispanic (63.6%), identified as female (70%), and as completely heterosexual (67.6%). Participants completed demographic information and measures of …

Weathering Of Black Doulas In Hospitals: Challenges And Opportunities, Denise Elaine Bolds

Education Doctoral

Black maternal health continues to face significant disparities in the United States, highlighting the crucial role of Black Doulas in promoting birth equity (Declercq & Zephyrin, 2020; K. Taylor et al., 2023). This qualitative, phenomenological study explored the lived experiences of 10 certified Black Doulas working in hospital settings nationwide. Guided by the weathering hypothesis (Geronimus, 1992, /2023), critical race feminist theory (Wing, 2020), Black feminist theory (Collins, 2000), Sojourner syndrome (Bailey, 2017), and the looking-glass self (Cooley, 1902), the study examined how systemic racism, occupational challenges, and advocacy fatigue intersect to shape their professional experiences.

Using semi-structured interviews, participants …

Exploring The Relationship Between Job Satisfaction And Servant Leadership In Community Corrections: A Probation Officer’S Perspective, Shamira B. Gambrell

Education Doctoral

Probation officers work in demanding environments marked by high caseloads, role conflict, and organizational pressures that can negatively affect job satisfaction and workforce stability. Leadership practices at the frontline supervisory level play a critical role in shaping these experiences, yet limited empirical research has examined servant leadership within community corrections. The purpose of this quantitative correlational study was to examine the relationship between probation officers’ perceptions of servant leadership demonstrated by their direct supervisors and their level of job satisfaction.

Data were collected from probation officers affiliated with departments connected to the American Probation and Parole Association using an anonymous …

Coupled Machine Learning Models: Combining Observations And Numerical Analysis In A Physics-Regularized Approach, Austin B. Schmidt

LSU New Orleans Theses and Dissertations

This dissertation investigates surrogate modeling for fixed-location environmental forecasting using novel data-combination techniques. The work surveys the landscape of observational measurements and numerically generated data, identifying similar research and gaps in current methodologies. The ratio-coupled training framework is introduced to combine two data sources per predicted feature through a tunable parameter that weights training signal strength. An optimization scheme is developed to simultaneously tune surrogate weights and the coupled signal ratio, allowing relative influence between signals to act as an explicit regularizer. Three case studies demonstrate the methodology and approach in a variety of contexts. The first study is based …

Navigating Upstream: How Medical Educators Strategize The Unfamiliar During Their Transition Into A Leadership Role, Sarah Williams

LSU New Orleans Theses and Dissertations

As the medical field grows more complex, the need for medical educator leaders has increased, driving the integration of leadership training into medical education to help manage an increase in administrative challenges. In U.S. medical schools, the Liaison Committee on Medical Education (LCME) standards require faculty to fill high-ranking leadership roles who must balance academic and administrative duties. Medical educators in these leadership roles must manage the tensions between teaching, research, patient care, and administrative responsibilities. Although leadership programs designed for medical educators exist, as well as faculty development opportunities, educators consistently express a lack of training as they transitioned …

Recruitment And Retention Of Adult Learners In The State Of Louisiana: A Look Into The Adult Learner’S Decision-Making Process As A Consumer, Austin T. Rogers

LSU New Orleans Theses and Dissertations

With the looming enrollment cliff and several institutions across the state and country already experiencing decreased enrollment, schools across the country have begun adjusting their current practices to maintain steady enrollment in the future. University administration and admissions offices are having to target new student groups in order to offset the traditional student populations they have historically worked with. However, in order for these new student groups to be successful on campus, these schools must also understand the needs of these new student populations. This narrative study aimed to better understand the experiences of adult learners currently enrolled at University …

Where's Waldo?: Finding The Missing Voice Of The College Counselor, Krystyn K. Dupree

LSU New Orleans Theses and Dissertations

College counseling has been integral to higher education for more than a century; however, the role of college counselors has become increasingly complex amid rising student mental health needs, growing symptom severity, and constrained institutional resources. Despite extensive research on college student mental health, little contemporary scholarship has examined the lived experiences of the professionals providing these services. The purpose of this qualitative study was to explore how college counselors who provide mental health services perceive their professional role within the context of higher education.

Guided by Bronfenbrenner’s ecological systems theory, this study conceptualized college counselors as embedded within interconnected …