Digital Commons Network^™

Understanding The Retrospective And Current Health Care Needs And Service Experiences Of Adult Survivors Of Minor Sex Trafficking, Amelia Wagner, Sarah Lockwood, Amy Farrell, Carlos Cuevas, Jennifer E. O'Brien, Rebecca Pfeffer, Jaclyn Kolnik, Alisa Lincoln

Faculty Publications

Minor sex trafficking is an urgent public health problem, but we lack data about how such experiences impact health and health care access. Utilizing data collected from in-depth interviews with 35 adult survivors of minor sex trafficking across the U.S. we explored the physical and psychological healthcare access and healthcare experiences of adult survivors of minor sex trafficking. Negative healthcare experiences before, during, and following sex trafficking foster a lack of trust and confidence in healthcare systems as adults. Recommendations are provided to help overcome barriers to meeting healthcare needs and improving health care experiences for survivors of minor sex …

Love Of Creation: Exploring Diversity And Commonality Among Religious And Philosophical Traditions, Tim Lomas, Brendan W. Case, Matthew T. Lee, Jayanti Basu, Lindsie Bear, Richard G. Cowden, Yudit Kornberg Greenberg, Tayyab Rashid, Tyler J. Vanderweele

Faculty Publications

Love is widely recognized as one of the most important, desired, and consequential aspects of the human condition, and thus has rightly been the focus of much academic attention. However, this interest has tended to concentrate on specific forms of love—especially romantic and familial forms—to the exclusion of others. One such overlooked form is love of “creation”—of the world and the wider cosmos in which human beings find themselves. Throughout history and across cultures, this kind of love has been developed and articulated by religious and philosophical traditions in diverse ways. This article showcases a selection of ten such traditions, …

Ductape: A Steady-State, Axisymmetric Ducted Fan Analysis Code Designed For Gradient-Based Optimization, Judd Mehr, Andrew Ning

Faculty Publications

Electric ducted fans have become an intriguing option for the propulsion systems of clean, quiet advanced air mobility technologies due to their potential benefits in both aerodynamic efficiency and reduced noise profiles compared to open rotor systems. Exploration of conceptual electric ducted fan design in the context of novel, and often complex, applications may be greatly aided by the use of optimization techniques. Specifically, gradient-based optimization lends itself to the exploration of large, complex, multi-disciplinary systems due to its inherent scalability. Despite ducted fans/propellers having been relatively well studied for the last century, modern, gradient-based, optimization-ready analysis tools for ducted …

Black And Latiné Parents' Perspectives On Supporting Their Children's Emotional And Physical Health, Daniel K. Cooper, Jayxa K. Alonzo, Tracey Goldson, Isabel R. Jordan, Fatima Jatoi, Isabella Mallozzi, Francesca Lupini

Faculty Publications

Informed by integrative models of cultural resilience, the purpose of this study was to (a) explore how parents are promoting their children's emotional and physical health, with a focus on race and ethnic-racial socialization strategies, and (b) identify the barriers and challenges parents are experiencing in supporting their children's health. Ethnically racially matched qualitative interviews were conducted with 33 parents (82% women, 64% Black, 36% Latiné). Results of thematic analysis revealed three overarching themes: (a) Strategies for Promoting Children's Physical and Emotional Health, (b) Challenges Promoting Children's Physical and Emotional Health, and (c) Impact of Racism on Parenting and Children's …

The Needless Search For A Founding-Era "Hearsay" Definition, Jeffrey Bellin

Faculty Publications

Modern Confrontation Clause doctrine permits only unconfronted “out-of-court statements that would have been admissible in a criminal case at the time of the founding.” To operationalize this concept, the Supreme Court identifies “testimonial hearsay” as the Clause’s primary concern. Its opinions regularly dive into the historical record to refine what counts as “testimonial” but ignore that record in defining “hearsay.” This omission cannot last. Cases in the lower courts, and one on the Court’s recent docket, concern testimonial but (arguably) non-hearsay statements. And while confrontation jurisprudence is supposed to be tied to founding-era evidence law, the “hearsay” definition, casually referenced …

It's Time To Make Important Upgrades To Our Mediation Curriculum, John Lande

Faculty Publications

In the past five decades, mediation practice and teaching have grown in size and sophistication. Inevitably, some ideas that made sense early in this development need revision and updating to reflect evolving realities and improved understandings. This is a moment deserving reflection about what faculty should teach about mediation, especially in light of the NextGen bar exam and changes in various states’ licensing regimes.

This article suggests various upgrades of our mediation instruction. Change is hard but can be worth the effort. The article includes numerous specific suggestions and links to handy resources that faculty can incorporate in their courses …

Hd-Tdcs Over Left Supplementary Motor Area Differentially Modulated Neural Correlates Of Motor Planning For Speech Vs. Limb Movement, Fatemeh Tabari, Celeste Patron, Hope Cryer, Karim Johari

Faculty Publications

The supplementary motor area (SMA) is implicated in planning, execution, and control of speech production and limb movement. The SMA is among putative generators of pre-movement EEG activity which is thought to be neural markers of motor planning. In neurological conditions such as Parkinson's disease, abnormal pre-movement neural activity within the SMA has been reported during speech production and limb movement. Therefore, this region can be a potential target for non-invasive brain stimulation for both speech and limb movement. The present study took an initial step in examining the application of high-definition transcranial direct current stimulation (HD-tDCS) over the left …

Transcription Decisions Of Conjoined Independent Clauses Are Equitable Across Dialects But Impact Measurement Outcomes, Janna B. Oetting, Tahmineh Maleki

Faculty Publications

Purpose: Transcription of conjoined independent clauses within language samples varies across professionals. Some transcribe these clauses as two separate utterances, whereas others conjoin them within a single utterance. As an inquiry into equitable practice, we examined rates of conjoined independent clauses produced by children and the impact of separating these clauses within utterances on measures of mean length of utterance (MLU) by a child’s English dialect, clinical status, and age. Method: The data were archival and included 246 language samples from children classified by their dialect (African American English or Southern White English) and clinical status (developmental language disorder [DLD] …

Spatiotemporal Analysis Of Nighttime Crimes In Vienna, Austria, Jiyoung Lee, Michael Leitner, Gernot Paulus

Faculty Publications

Studying the spatiotemporal dynamics of crime is crucial for accurate crime geography research. While studies have examined crime patterns related to weekdays, seasons, and specific events, there is a noticeable gap in research on nighttime crimes. This study focuses on crimes occurring during the nighttime, investigating the temporal definition of nighttime crime and the correlation between nighttime lights and criminal activities. The study concentrates on four types of nighttime crimes, assault, theft, burglary, and robbery, conducting univariate and multivariate analyses. In the univariate analysis, correlations between nighttime crimes and nighttime light (NTL) values detected in satellite images and between streetlight …

A Simple Approach To Dealing With Partial Contestation, Ali Kagalwala, Thiago M.Q. Moreira, Guy D. Whitten

Faculty Publications

Objective: We propose a simple approach to dealing with partial contestation in models of multiparty elections. Methods: Our proposed approach is to add a tiny value to the vote share of parties that do not contest a district and then to include dummy variables identifying those districts in which parties do not compete. We can then estimate a single system of equations using a seemingly unrelated regression (SUR) approach and Aitchison's log-ratio transformation. In our SUR system, we interact the dummy variable for a party that partially contested districts with other predictors in the equation that uses the share of …

The Expression Of Mantle Seismic Anisotropy In The Global Seismic Wavefield, Jonathan Wolf, Maureen D. Long, Daniel A. Frost, Tarje Nissen-Meyer

Faculty Publications

The dependence of seismic wave speeds on propagation or polarization direction, called seismic anisotropy, is a relatively direct indicator of mantle deformation and flow. Mantle seismic anisotropy is often inferred from measurements of shear-wave splitting. A number of standard techniques to measure shear-wave splitting have been applied globally; for example, *KS splitting is often used to measure upper mantle anisotropy. In order to obtain robust constraints on anisotropic geometry, it is necessary to sample seismic anisotropy from different directions, ideally using different seismic phases with different incidence angles. However, many standard analysis techniques can only be applied for certain epicentral …

Geometrically Exact Beam Theory For Gradient-Based Optimization, Taylor Mcdonnell, Andrew Ning

Faculty Publications

Decades of research have progressed geometrically exact beam theory to the point where it is now an invaluable resource for analyzing and modeling highly flexible slender structures. Large-scale optimization using geometrically exact beam theory remains nontrivial, however, due to the inability of gradient-free optimizers to handle large numbers of design variables in a computationally efficient manner and the difficulties associated with obtaining smooth, accurate, and efficiently calculated design sensitivities for gradient-based optimization. To overcome these challenges, this paper presents a finite-element implementation of geometrically exact beam theory which has been developed specifically for gradient-based optimization. A key feature of this …

Understanding Differential Reductions In Undernutrition Among Districts In Rwanda Through The Perspectives Of Mid-Level And Community Actors On Policy Commitment And Policy Coherence, Elyse Iruhiriye, Edward A. Frongillo Ph.D., Deanna K. Olney, Emmanuel Niyongira, Simeon Nanama, Christine E. Blake Ph.D., Rd, Eugene Rwibasira, Paul Mbonyi

Faculty Publications

Understanding the drivers of improvements in child undernutrition at only the national level can mask subnational differences. This paper aimed to understand the contributions of factors in the enabling environment to observed differences in stunting reduction between districts in Rwanda. In 2017, we conducted 58 semi-structured interviews with mid-level actors (n = 38) and frontline workers (n = 20) implementing Rwanda's multi-sectoral nutrition policy in five districts in which stunting decreased (reduced districts) and five where it increased or stagnated (non-reduced districts) based on Rwanda's 2010 and 2014/15 Demographic and Health Surveys. Mid-level actors are government officials and service providers …

Functional Multivariable Logistic Regression With An Application To Hiv Viral Suppression Prediction, Siyuan Guo, Jiajia Zhang Ph.D., Yichao Wu, Alexander C. Mclain Ph.D., James W. Hardin, Bankole Olatosi Ph.D., Xiaoming Li Ph.D.

Faculty Publications

Motivated by improving the prediction of the human immunodeficiency virus (HIV) suppression status using electronic health records (EHR) data, we propose a functional multivariable logistic regression model, which accounts for the longitudinal binary process and continuous process simultaneously. Specifically, the longitudinal measurements for either binary or continuous variables are modeled by functional principal components analysis, and their corresponding functional principal component scores are used to build a logistic regression model for prediction. The longitudinal binary data are linked to underlying Gaussian processes. The estimation is done using penalized spline for the longitudinal continuous and binary data. Group-lasso is used to …

Murder On The Hearsay Trail, Jeffrey Bellin

Faculty Publications

Judges, lawyers, and law students struggle to apply American evidence law’s most distinctive feature—the hearsay prohibition. The problem is that hearsay is difficult to master and somewhat dull. At the same time, hearsay evidence is ubiquitous and important. Every litigator has a story about a judge’s eccentric hearsay rulings; mine is the trial judge who waved his hand dismissively at hearsay objections, letting witnesses answer on the grounds that “I want to hear it.” And the case law is littered with appellate opinions scolding trial judges for erroneous hearsay rulings while introducing errors of their own.

That is just the …

Characteristics Of Pyrolysis Products Of California Chaparral And Their Potential Effect On Wildland Fires, Mahsa Alizadeh, David R. Weise, Thomas H. Fletcher

Faculty Publications

The aim of this study was to investigate the pyrolysis of selected California foliage and estimate the energy content of the released volatiles to show the significance of the pyrolysis of foliage and its role during wildland fires. While the majority of the volatiles released during the pyrolysis of foliage later combust and promote fire propagation, studies on the energy released from combustion of these compounds are scarce. Samples of chamise (Adenostoma fasciculatum), Eastwood’s manzanita (Arctostaphylos glandulosa), scrub oak (Quercus berberidifolia), hoaryleaf ceanothus (Ceanothus crassifolius), all native to southern California, and sparkleberry …

Derivative Propagation Through Vortex Particle Method Simulation, Eric Green, Andrew Ning

Faculty Publications

Automatic differentiation (AD) is a powerful tool for evaluating numerical derivatives. In particular, reverse-mode AD provides numerical gradients in a way that is insensitive to the number of input variables. This makes reverse-mode AD well-suited for solving large optimization problems. However, reverse-mode AD has a particularly large associated memory cost because most intermediate values in operations need to be cached. This is problematic for large problems such as aerodynamics simulations, though, since the memory requirements can quickly become impractical. The solution implemented in this work is to provide analytic pullback expressions for functions for which many of the intermediate values …

Trajectory Optimization Of Evtol And Conventional Aircraft: A Comparative Analysis Of Vortex Particle Method And Vortex Lattice + Blade Element Momentum Theory, Andrew Tagg, Ryan Anderson, Cibin Joseph, Andrew Ning

Faculty Publications

Trajectory optimization of aircraft transition maneuvers can significantly influence the design of these systems, particularly when making decisions about aircraft geometry, propulsion sizing, and control system design. This paper presents the trajectory optimization of air vehicles including electric vertical takeoff and landing (eVTOL) as well as conventional aircraft. The study evaluates the influence of fidelity in trajectory design by comparing the use of two aerodynamic methods in the context of trajectory optimization. The mid-fidelity method utilizes a vortex lattice method (VLM) to model lifting surfaces while employing blade element momentum theory (BEMT) to model rudimentary rotor-wing interactions. The high-fidelity approach …

Solving Unsteady Potential Flow Problems In O(N) Time, Ryan Anderson, Andrew Ning

Faculty Publications

Design of vertical takeoff and landing aircraft is challenging in part due to significant aerodynamic interactions between rotors and wings. Computational models can aid in their design, but are computationally expensive. 3-D panel methods coupled with vortex particle wakes offer an attractive solution, but solving for the panel strengths scales poorly for large problems. Multigrid methods, such as Krylov subspace methods in conjunction with the fast multipole method (FMM), have been demonstrated to reduce the scaling to O(𝑁). We explore the performance and limitations of the Krylov-FMM method, traditional matrix-powered GMRES, LU decomposition, and a novel O(𝑁) multigrid approach to …

Persevering Through Communication Challenges: A Qualitative Descriptive Exploration Of Communication Experiences In Aphasia, Tyson G. Harmon, Camille Williams, Garrett Cardon, William S. Evans

Faculty Publications

Background

People with aphasia often experience activity limitations and participation restrictions despite wanting to engage in communication activities that are satisfying and meaningful. Communication partner support, the complexity of the communication environment, and the thoughts and feelings of people with aphasia have important implications for both language processing and communicative participation. The perspectives of PWA about the role that environmental and personal factors (e.g. thoughts and feelings) play in their communication experiences could inform clinical practice.

Aims

To qualitatively explore the communication experiences of people with aphasia and how environmental demands and personal factors (especially emotional responses) affect these experiences. …

Noise In The Library: Using Wearable Biomarker Devices To Measure Student Stress While Studying In The Library, Megan Frost

Faculty Publications

Many patrons come to the library seeking a quite environment, but some library spaces are noisy. In our study, we attempted to identify if the level of noise in a typical busy university library setting impacted the physiological stress of its patrons, as measured by wearable devices. We assessed participants’ heart rate variability (HRV) and skin temperature while they studied in different areas in the library. We found that there was no significant difference in patron stress levels while studying in loud vs quiet areas. This was even true for those patrons who came into the library hoping to be …

Children’S Reading Of Visuals In Informational Picturebooks And Biographies, Sunah Chung

Faculty Publications

Visuals in picturebooks play an important role in supporting children’s reading comprehension and literacy development. This qualitative case study analyzes three American families’ shared reading practices at home by analyzing their online surveys for family literacy environments, reading logs for a month, mother interviews, and video observation of their shared reading at home. The analysis of the collected data categorizes children’s responses to visuals into three major themes: reflecting personal preferences and thoughts on visuals, interpreting visuals based on prior knowledge, and misreading visuals that interfere with understanding content. The discussion focuses on the roles of visuals in informational picturebooks …

The Fate Of Fixed Nitrogen In Santa Barbara Basin Sediments During Seasonal Anoxia, Xuefeng Peng, David J. Yousavich, Annie Bourbonnais, Frank Wenzhöfer, Felix Janssen, Tina Treude, David L. Valentine

Faculty Publications

Despite long-standing interest in the biogeochemistry of the Santa Barbara Basin (SBB), there are no direct rate measurements of different nitrogen transformation processes. We investigated benthic nitrogen cycling using in situ incubations with ¹⁵NO ₃̅  addition and quantified the rates of total nitrate (NO ₃̅) uptake, denitrification, anaerobic ammonia oxidation (anammox), N₂O production, and dissimilatory nitrate reduction to ammonia (DNRA). Denitrification was the dominant NO ₃̅ reduction process, while anammox contributed 0 %–27 % to total NO ₃̅ reduction. DNRA accounted for less than half of NO ₃̅ reduction except at the …

Cultivating A Digital Environment To Support Primary Source Instruction, Lindsey Memory, Rebecca A. Wiederhold, Abby Beazer, Gregory K. Seppi

Faculty Publications

Primary source literacy continues to be a priority for academic institutions. A growing subtopic is digital primary sources and their unique role in pedagogy. Digital primary sources have the capacity to represent more diverse voices, and their digital nature provides greater accessibility to new and existing user populations who cannot always come to the reading room. Digital primary sources can better meet a variety of needs through ADA-compliant transcription, 24/7 access, portability, and extensibility. With that vision in mind, these projects and materials present their own challenges to archivists, librarians, and other instructors seeking to expand these items’ curricular use. …

Probabilistic Estimation Of Cadence And Walking Speed From Floor Vibrations, Yohanna Mejiacruz, Juan M. Caicedo, Zhaoshuo Jiang, Jean M. Franco

Faculty Publications

Objective: This research aims to extract human gait parameters from floor vibrations. The proposed approach provides an innovative methodology on occupant activity, contributing to a broader understanding of how human movements interact within their built environment. Methods and Procedures: A multilevel probabilistic model was developed to estimate cadence and walking speed through the analysis of floor vibrations induced by walking. The model addresses challenges related to missing or incomplete information in the floor acceleration signals. Following the Bayesian Analysis Reporting Guidelines (BARG) for reproducibility, the model was evaluated through twenty-seven walking experiments, capturing floor vibration and data from Ambulatory Parkinson’s …

Correction: Graph Theory And Graph Neural Network Assisted High-Throughput Crystal Structure Prediction And Screening For Energy Conversion And Storage, Joshua Ojih, Mohammed Al-Fahdi, Yagang Yao, Jianjun Hu, Ming Hu

Faculty Publications

Correction for ‘Graph theory and graph neural network assisted high-throughput crystal structure prediction and screening for energy conversion and storage’ by Joshua Ojih et al., J. Mater. Chem. A, 2024, 12, 8502–8515, https://doi.org/10.1039/D3TA06190F.

On page 8511 in section 3.2 of the published article, the text “The single values of bonding and antibonding for each structure are obtained by performing integration over COHP curves for each atomic pair as evaluated by the LOBSTER package” should have included citations to six references. The missing references are listed below as ref. 1–6.

The Royal Society of Chemistry apologises for …

Moving Slow And Fixing Things, Hannibal Travis

Faculty Publications

No abstract provided.

Short- And Medium-Term Impacts Of Small-Scale Vegetable Support On Food Security: Evidence From Syria, Ghassan Baliki, Melodie Al Daccache, Hala Ghattas Ph.D., Tilman Brück

Faculty Publications

Small-scale agricultural and horticultural interventions play a critical role in improving nutrition and food security of vulnerable households in peaceful settings. However, scant rigorous evidence exists on the impacts and sustainability of such interventions in conflict settings. In this paper, we address this knowledge gap by analyzing the short- and medium-term impacts of a small-scale vegetable input support program involving asset transfers on food security and diets in war-time Syria. We use longitudinal panel household survey data from a quasi-experimental study collected at three rounds: before, one year, and two years after the horticultural intervention ended. We use propensity score …

Incorporating Oxygen Isotopes Of Oxidized Reactive Nitrogen In The Regional Atmospheric Chemistry Mechanism, Version 2 (Icoin-Racm2), Wendell W. Walter, Masayuki Takeuchi, Nga L. Ng, Meredith G. Hastings

Faculty Publications

The oxygen isotope anomaly (Δ¹⁷O = δ¹⁷O − 0.52 × δ¹⁸O > 0) has proven to be a robust tool for probing photochemical cycling and atmospheric formation pathways of oxidized reactive nitrogen (NO_y). Several studies have developed modeling techniques to implicitly model Δ¹⁷O of NO_y molecules based on numerous assumptions that may not always be valid. Thus, these models may be oversimplified and limit our ability to compare model Δ¹⁷O values of NO_y with observations. In this work, we introduce a novel method for explicitly tracking Δ …

Chemical Herding As A Multiplicative Factor For Top-Down Manipulation Of Colloids, Mark N. Mcdonald, Douglas R. Tree, Cameron K. Peterson

Faculty Publications

Colloidal particles can create reconfigurable nanomaterials, with applications such as color-changing, self-repairing, and self-regulating materials and reconfigurable drug delivery systems. However, top-down methods for manipulating colloids are limited in the scale they can control. We consider here a new method for using chemical reactions to multiply the effects of existing top-down colloidal manipulation methods to arrange large numbers of colloids with single-particle precision, which we refer to as chemical herding. Using simulation-based methods, we show that if a set of chemically active colloids (herders) can be steered using external forces (i.e., electrophoretic, dielectrophoretic, magnetic, or optical forces), then a larger …