Digital Commons Network^™

Insights Into Core-Mantle Differentiation From Bulk Earth Melt Simulations, Abin Shakya, Dipta B. Ghosh, Colin Jackson, Gabriele Morra, Bijaya B. Karki

Faculty Publications

The earth is thought to have gone through complex physicochemical changes during the accretion and magma ocean stages. To better understand this evolution process at the fundamental level, we investigate the behavior of a bulk earth melt system by simulating the composition Fe35.7Mg19.0Si15.2O30.2 (in wt%) at high pressure. A deep neural network potential trained by first-principles data can enable accurate molecular dynamics simulation of large supercells that greatly enhances sampling for reliable evaluation of elemental partitioning. Our simulated system undergoes a phase separation in which the four elements clump together to different extents into two major domains. Based on the …

The Relationship Between A Transient Scientific Phenomenon And Local Journalism At The Beginning Of The Gilded Age, Thomas Hockey

Faculty Publications

In the United States, the nineteenth century was the halcyon era for local newspapers. These publications were the primary source of public information at a time when other periodicals and books had low circulation. The purpose of this paper is to explore how local journalism in the nineteenth-century United States dealt with an occasion outside the boundaries of the commonplace: an unfamiliar natural phenomenon. My example is the total solar eclipse of 7 August 1869. Editors and journalists of the time largely were unaccustomed to covering celestial events. Nevertheless, they sensed—correctly—an interest in the solar eclipse. Articles about the approaching …

Avocado Seed Extract Encapsulated In Zein Nanoparticles As A Functional Ingredient, Thanida Chuacharoen, Chantana Polprasert, Cristina M. Sabliov

Faculty Publications

Nano-delivery of natural compounds has gained increasing attention in the food and pharmaceutical ingredients industry. Avocado seed was extracted by a total lipid extraction and the presence of two acetogenin compounds was confirmed by the high-performance liquid chromatography (LC-MS) technique. Then, the avocado seed extract (Avo) was encapsulated into zein nanoparticles by liquid-liquid dispersion and the formation of zein nanoparticles loaded with avocado seed extract (Avo-ZNPs) was confirmed by FTIR analysis. The Avo-ZNPs with various Avo contents showed an average size ranging from 166.9 ± 14.1 to 305.2 ± 16.2 nm with 0.19–0.26 of polydispersity index (PDI), and a surface …

Preserving The Future Of Juries And Jury Trials, Paula Hannaford-Agor, Hope Forbush, Miriam Hamilton, Jawwaad Johnson, Morgan Moffett

Faculty Publications

To preserve the future of juries and jury trials, the National Center for State Courts (NCSC) convened a meeting of representatives from a broad array of justice system stakeholders as a project under the Justice for All Reauthorization Act (JFARA). To frame the stakeholder discussions, NCSC employed strategic foresight, a methodological approach designed to explore a range of possible futures of juries and jury trials within the American justice system as a vehicle for identifying critical vulnerabilities within the current jury system and proposing targeted strategies to preserve and strengthen jury trials. Critical vulnerabilities are those areas of weakness that …

Strategic (Non)Disclosure: Activation And Avoidance Of Social Ties Among Women Seeking Abortion, Kathleen Broussard

Faculty Publications

The increased politicization of sexual and reproductive health has created barriers to medically necessary care. In absence of formal health care, social ties become critical sources of information and resources, yet the disclosure of stigmatized health needs carries significant risk. How do people navigate the risks and benefits of disclosure when seeking care for stigmatized needs? Drawing on original survey data (N = 153) and in-depth interviews (N = 55) with women who attempted a self-managed abortion, I first describe the distinct roles of weak and strong ties in women’s health-seeking experiences. I then demonstrate how both partial disclosure and …

Are Mondays Different? Evidence From Initial Public Offerings, Abu Chowdhury, Mika Vaihekoski, Mir Zaman

Faculty Publications

This paper investigates how and why initial public offerings (IPOs) issued on Mondays differ from those on other days. We provide evidence that Monday IPOs make a significantly larger number of filing price amendments during the road show and set offer prices that exceed the filing price range, resulting in higher positive offer price revisions. We also find that Monday IPOs receive less analyst coverage than other-day IPOs, despite their underwriting fees being the same and their total underwriter compensation being higher. Therefore, Monday IPOs are more likely to change lead underwriters in subsequent equity offerings and have a higher …

The Pagan Reception Of Judaism From The Sibylline Oracles: Insights From Pseudo-Seneca’S Octavia Regarding The Creation And Circulation Of Oral Sibylline Oracles By The Plebs, Kenneth Atkinson

Faculty Publications

According to tradition, the original collection of Sibylline Books ac­quired by the Roman monarch Tarquinius Priscus, which were kept in the Temple of Jupiter in the capital, were lost in the fire of 83 BCE. In 76 BCE, the Senate ordered the college of the quindecimviri to travel to the traditional centers of Sibylline activity in the East to find Sibylline Oracles to replace those destroyed in the fire. According to Lactantius, these officials collected many Oracles from private individuals. This reference suggests that Sibylline Oracles circulated widely. However, based on the witnesses regarding their consultation, it appears that the …

An Account Of The 1453 Ce Ottoman Siege Of Constantinople Interpreted Through A First Century Bce Jewish Text: How An Ancient Collection Of Second Temple Period Poems Changed The Course Of Western Civilization, Kenneth Atkinson

Faculty Publications

On 29 May 1453 CE, the besieged Christian occupants of Constantinople — the capital of the Byzantine Empire and the last surviving portion of the former Roman Empire — knew the end was near when they heard 50,000-80,000 angry Ottoman soldiers, including 5,000 to 10,000 of the elite Janissaries — the Sultan’s shook troops — preparing to breach its walls after a 53-day siege. The 7,000-man army defending the city knew that all was lost. The 21-year-old Sultan Mehmet II — given the sobriquet “the Conqueror” for capturing the city — leveled the roads so his army could reach Constantinople’s …

Roman History In Sibylline Oracle 13: A Palestinian Jewish Perspective On Emperors, Usurpers, And Saviors During The Third Century Ce (Part One: From Maximus I “Thrax” To Philip I “The Arab”), Kenneth Atkinson

Faculty Publications

The period commonly known as the “Crisis of the Third Century” (235-284 CE) began with the assassination of the Roman emperor Severus Alexander (222-235 CE), the last ruler of the Severan dynasty. This turbulent era was marked by nearly fifty years of civil war, barbarian invasions, rebellions, and political and social unrest caused by approximately twenty-six claimants to the imperial throne. Although the end of this age of disorder under Diocletian (284-305 CE) is well-known, we have little information about much of the third century CE, particularly its first decades. This study examines book 13 of the Sibylline oracles, which …

Sexual Orientation, Gender Identity And Virologic Failure Among People With Hiv: A Cohort Study In All Of Us Research Program, Fanghui Shi, Ruilie Cai, Buwei He, Xiaoming Li Ph.D., Xueying Yang Ph.D., Sharon Weissman, Bankole Olatosi Ph.D., Jiajia Zhang Ph.D.

Faculty Publications

Background: Sexual and gender minorities (SGMs) are at higher risk of HIV incidence compared to their heterosexual cisgender counterparts. Despite the high HIV disease burden among SGMs, there was limited data on whether they are at higher risk of virologic failure, which may lead to potential disease progression and increased transmission risk. The All of Us (AoU) Research Program, a national community-engaged program aiming to improve health and facilitate health equity in the United States by partnering with one million participants, provides a promising resource for identifying a diverse and large volunteer TGD cohort. Leveraging various data sources available through …

The Dynamic Risk Factors Of Cardiovascular Disease Among People Living With Hiv: A Real-World Data Study, Ziang Liu, Jiajia Zhang Ph.D., Xueying Yang Ph.D., Haoyuan Gao, Shujie Chen, Sharon Weissman, Bankole Olatosi Ph.D., Xiaoming Li Ph.D.

Faculty Publications

Background: This study aims to investigate the incidence and dynamic risk factors for cardiovascular diseases (CVD) among people living with HIV (PLWH).

Methods: In this population-based statewide cohort study, we utilized integrated electronic health records data to identify adult (age ≥ 18) who were diagnosed with HIV between 2006 and 2019 and were CVD event-free at the HIV diagnosis in South Carolina. The associations of HIV-related factors and traditional risk factors with the CVD incidence were investigated during the overall study period, and by different follow-up periods (i.e., 0-5yrs, 6-10yrs 11-15yrs) using multivariable logistic regression models.

Results: Among 9,082 eligible …

Proceeding Toward The Maximum Of Solar Cycle 25 With A Radiation Environment Similar To The Previous Cycle, Fatemeh Rahmanifard, Morgan L. Macleod, Wouter C. De Wet, Andrew P. Jordan, Jody K. Wilson, Harlan E. Spence, Nathan A. Schwadron

Faculty Publications

The Sun exhibited lower-than-average activity levels, including a weak maximum and a prolonged minimum in the solar cycle (SC) 24. Thiswas following a 60-year trend of weakening solar activity, leading to speculations that we could be moving into another secular minimum scenario like the Dalton or the Gleissberg periods. During such periods, the fluxes of galactic cosmic rays (GCRs) increase significantly, introducing radiation hazards for long-term crewed space explorations. In our previous work, we predicted the level of solar activity, and thus, the radiation environment for SC25 will be similar to SC24. In this paper, we show that, to date, …

Behind The Screen: Exploring Parental Roles In K-12 Online Education, Barbara T. Sandberg, Charles R. Graham, Jered Borup, Richard E. West, Rocio Quiroga Velasquez

Faculty Publications

Independent engagement can be challenging for K-12 online students. Parents’ physical presence makes them an important source of engagement support. Previous research on parental support in online courses is limited and focused on asynchronous learning within a single program. Since the COVID-19 pandemic, online enrollments have grown and instructional modalities have evolved. To better understand parental support post-Covid, we interviewed 21 parents across eight online programs with asynchronous, synchronous, and bichronous course offerings. Parents identified their affective, behavioral, cognitive, and other support roles. Implications for parental roles in addressing the academic engagement gap are provided to both researchers and practitioners.

Redressing Judicial Misbehavior: An Integrated Approach To Judicial Immunity, Nancy Amoury Combs

Faculty Publications

Immunities generate intense public interest and controversy. Whether it is the sweeping presidential immunity that former President Trump has claimed or the qualified immunity that rogue police invoke to evade financial responsibility for their brutality, immunities stand as a highly contested aspect of the American legal system. Judicial immunity incites similar controversy. American judges possess absolute immunity from civil suits for their judicial acts, so victims are barred from seeking civil compensation, even against judges who engage in purposeful or malicious misconduct from the bench. For decades scholars have sought to curtail absolute judicial immunity, but they have overlooked a …

The Prosecutor Vacancy Crisis, Adam M. Gershowitz

Faculty Publications

There is a prosecutor vacancy crisis in the United States. Prosecutors are quitting in droves and there are few applicants to replace them. In Houston and Los Angeles, more than 15% of prosecutor positions are open. In Detroit, the vacancy rate exceeds 20%. In Alameda, 25% of prosecutor positions are empty. And in Miami, a staggering 33% of prosecutor positions are unfilled. The situation is equally dire in many large and small counties across the nation.

Drawing on data and interviews from more than two-dozen district attorney’s offices, this Article documents how low salaries, massive caseloads, lack of remote work …

Law And Equity On Appeal, Aaron-Andrew P. Bruhl

Faculty Publications

Most lawyers know that the Federal Rules of Civil Procedure merged the divergent trial procedures of the common law and of equity, but fewer are familiar with the development of federal appellate procedure. Here too there is a story of the merger of two distinct systems. At common law, a reviewing court examined the record for errors of law after the final trial judgment. In the equity tradition, an appeal was a rehearing of the law and the facts that aimed at achieving justice and did not need to await a final judgment. Unlike the story of federal trial procedure, …

Roman History In Sibylline Oracle 13: A Palestinian Jewish Perspective On Emperors, Usurpers, And Saviors During The Third Century Ce (Part Two: From Decius To Odenath Of Palmyra), Kenneth Atkinson

Faculty Publications

Sibylline Oracle 13 is a remarkable historical document that contains a unique perspective on the poorly documented period of Roman history known as the “Crisis of the Third Century (235-284 CE), which began with the assassination of the Roman emperor Severus Alexander (222-235 CE), the last ruler of the Severan dynasty. This turbulent era was marked by nearly fifty years of civil wars, barbarian invasions, rebellions, and approximately twenty-six claimants to the throne. Although the end of this turmoil under Diocletian (284-305 CE) is well known, we have little information about much of this century, particularly its first decades. The …

Eclipse Anti-Planning, Thomas Hockey

Faculty Publications

It is common practice among eclipse chasers to recount the intricacies of eclipse-travel planning, and the proverbial trials and tribulations of the expedition itself. Indeed, this kind of narrative is a basic element to human storytelling. However, such a historiography skews the historical record. Moreover, well-meaning emphasis on careful planning might alienate some non-umbraphiles who have a different cost/benefit ratio than we do.

Controlling Anti-Asian Conduct On College Campuses: Can Including Ethnic Studies Programs Help?, Hani Morgan

Faculty Publications

The COVID-19 pandemic has triggered hostile acts against Asian college students. One of the ways to respond to these acts is to increase Asian American ethnic studies programs and courses. Although critics argue that ethnic studies cause divisiveness, research indicates that they are beneficial to students from all groups. University administrators may fear implementing these programs because they sometimes associate them with the violence that occurred during the late 1960s when students demanded ethnic studies to be included in the college curriculum. But this to a great extent by the poor representation of racial minority groups in the curriculum and …

Temporal Metadata Analysis: A Learning Classifier System Approach, Michael C. Todd, Gilbert L. Peterson

Faculty Publications

Digital forensics is a complex field that requires expert knowledge (EK) and specialized tools to collect, analyze, and report on digital evidence. Temporal metadata analysis is particularly challenging, requiring expert knowledge to understand and interpret underlying traces and associate them with their source. This paper introduces Digital Trace Inspector (DTI), a Learning Classifier System (LCS)-based decision support tool for temporal metadata analysis. DTI leverages a binary Michigan-style LCS to locate and group corroborating temporal digital traces of targeted user activity. Rules are built from expert-created atomics encoded as feature vectors using patterns defined in a structured EK rule framework. The …

Cryo-Em Structure Of A Photosystem I Variant Containing An Unusual Plastoquinone Derivative In Its Electron Transfer Chain, Christopher J. Gisriel, Vasily Kurashov, David F. Iwig, Brandon P. Russell, David J. Vinyard, Gary W. Brudvig, John H. Golbeck, K. V. Lakshmi

Faculty Publications

Photosystem I (PS I) is a light-driven oxidoreductase responsible for converting photons into chemical bond energy. Its application for renewable energy was revolutionized by the creation of the MenB deletion (ΔmenB) variant in the cyanobacterium Synechocystis sp. PCC 6803, in which phylloquinone is replaced by plastoquinone-9 with a low binding affinity. This permits its exchange with exogenous quinones covalently coupled to dihydrogen catalysts that bind with high affinity, thereby converting PS I into a stable solar fuel catalyst. Here, we reveal the 2.03-Å-resolution cryo-EM structure of a recent MenB variant of PS I. The quinones and their binding environment are …

Human Capital Assessment In Indigenous Regions To Enable Sustainable Futures, Victoria N. Sharakhmatova, Elena G. Mikhailova

Faculty Publications

This study is dedicated to the economic valuation of human capital (HC) in the regions where the Indigenous peoples of Kamchatka reside. The entire Kamchatksky Krai is considered an Indigenous people’s ancestral territory. However, in this study, only municipalities whose population is more than one-third Indigenous were chosen for the assessment. This includes six municipal districts and one urban district (Aleytsky, Bystrinsky, Karaginsky, Olyutorsky, Penzhinsky, and Tigilsky municipal districts and Palana urban district). The study employs statistical analysis and integrated, situational approaches: the investment approach was deemed the most appropriate tool for the economic assessment of HC in Indigenous territories. …

Spatial Pattern And Differential Expression Analysis With Spatial Transcriptomic Data, Fei Qin, Xizhi Luo, Bo Cai Ph.D., Feifei Xiao, Guoshuai Cai

Faculty Publications

The emergence of spatial transcriptomic technologies has opened new avenues for investigating gene activities while preserving the spatial context of tissues. Utilizing data generated by such technologies, the identification of spatially variable (SV) genes is an essential step in exploring tissue landscapes and biological processes. Particularly in typical experimental designs, such as case-control or longitudinal studies, identifying SV genes between groups is crucial for discovering significant biomarkers or developing targeted therapies for diseases. However, current methods available for analyzing spatial transcriptomic data are still in their infancy, and none of the existing methods are capable of identifying SV genes between …

The Climate Impact Of Tropical Peatland Degradation, René Dommain, Steve Frolking, Aurich Jeltsch-Thömmes, Fortunat Joos, John Couwenberg, Paul Glaser, Alexander Cobb, Charles Harvey

Faculty Publications

Southeast Asia is a global hotspot of peatland degradation and related greenhouse gas emissions. Anthropogenic impacts, mainly associated with agricultural conversion, shift Southeast Asian peatlands from carbon sinks to significant carbon sources. Here we first describe the impacts of anthropogenic drainage on landscape-scale carbon dynamics of individual peatlands and then use an impulse‐response model of radiative forcing to quantify the climate impacts of peat-carbon losses. Whereas water-table elevation (i.e. drainage depth) determines the magnitude of CO2 emissions at the site-scale, the geometric arrangement of artificial drainage networks determines carbon losses on the landscape-scale. Among all peatland greenhouse gas fluxes, the …

A Study Of The Near-Surface Vertical Distribution And Chemistry Of Pollutants In Cold-Climate Urban Areas With The Novel Pact-1d Model, Jonas Kuhn, Jochen Stutz, Meeta Cesler-Maloney, William R. Simpson, Thorsten Bartels-Rausch, Tjarda J. Roberts, Jennie L. Thomas, Jack E. Dibb, Laura Heinlein, Michael O. Sunday, Cort Anastasio, Kathleen Fahey, James H. Flynn, Fangzhou Guo

Faculty Publications

Cold-climate urban areas often face severe air pollution events in wintertime because of residential heating and vehicle emissions into shallow surface inversion layers. Many state-of-the-art regional chemistry-transport models cannot capture the small spatio-temporal scale of the transport and chemical processes occurring in these environments.Here we introduce a new version of our one-dimensional atmospheric chemistry and transport model, PACT-1D that includes continuous exchange of atmospheric air with the interstitial air of a snow layer and a kinetic treatment of multi-phase chemical processes in air and snow. PACT-1D allows modeling and assessment of the interaction of transport, chemistry, and emissions on the …

Air Quality Improvements Can Strengthen China's Food Security, Xiang Liu, Bowen Chu, Rong Tang, Yifan Liu, Xing Li, Jingfeng Xiao, Ankur Desai, Haikun Wang

Faculty Publications

China, with nearly 20% of the world's population, achieves self-sufficiency in major grain production using only about 10% of the global arable land. To further ensure food security in China, it is crucial to gain a deep understanding of the driving factors behind grain production. Climate change, water scarcity, and air pollution pose serious threats to food production. Air quality in China is among the poorest in the world, thus quantifying its impact on grain production not only holds significance for maintaining its food security but also provides valuable insights into future air quality management policies. Here, we conducted a …

Implications Of Energetic Neutral Atoms Observed With Ibex-Lo For The Pressure Balance In The Heliosphere, André Galli, Peter Wurz, Nathan A. Schwadron, Eberhard Möbius, Stephen A. Fuselier, Justyna M. Sokół, Maciej Bzowski, Paweł Swaczyna, Kostas Dialynas, David J. Mccomas

Faculty Publications

Energetic Neutral Atoms (ENAs) from the heliosphere are a unique means to remotely image the boundary regions of our heliosphere. NASA's Interstellar Boundary Explorer (IBEX) has been very successful in measuring these ENAs since 2008 at energies from tens of eV to 6 keV.The ENA low energy range from tens of eV to solar wind energy (roughly 1 keV) has been sampled throughout an entire solar cycle with the IBEX-Lo ENA imager. This enables us to study the physical implications for the structure of the heliosphere and for the parent proton populations in the heliosheath and other plasma regions that …

Air Quality Improvements Can Strengthen China's Food Security, Xiang Liu, Bowen Chu, Rong Tang, Yifan Liu, Xing Li, Jingfeng Xiao, Ankur Desai, Haikun Wang

Faculty Publications

China, with nearly 20% of the world's population, achieves self-sufficiency in major grain production using only about 10% of the global arable land. To further ensure food security in China, it is crucial to gain a deep understanding of the driving factors behind grain production. Climate change, water scarcity, and air pollution pose serious threats to food production. Air quality in China is among the poorest in the world, thus quantifying its impact on grain production not only holds significance for maintaining its food security but also provides valuable insights into future air quality management policies. Here, we conducted a …

Monte Carlo Error Analysis Of Lightning Interferometry With Lofar, Paulina Turekova, Brian Hare, Olaf Scholten, Steven Cummer, Joseph Dwyer, Ningyu Liu, Chris Sterpka, Sander Ter Veen

Faculty Publications

The LOFAR radio telescope works on a principle of radio interferometric imaging. It coherently sums the signal of hundreds of antennas in northern Netherlands, covering the 30-80 MHz window of the very high frequency (VHF) band of 30-300 MHz. We are using the TRI-D algorithm to extract 3-D polarization data of a lightning flash observed by LOFAR. TRI-D functions by coherently summing recorded voltages, accounting for the antenna function, polarization, and geometric time delay for each voxel. The result is split into time slices. A coherent intensity is calculated for each time slice, and the maximum of this value is …

A New Synthesis Of Arctic-Boreal Carbon Fluxes For Improved Carbon Budget Estimates, Anna Virkkala, Isabel Wargowsky, Judith Vogt, Mckenzie Kuhn, Susan Natali, Brendan Rogers, Mathias Goeckede, Kyle Arndt, Jennifer Watts, Tiffany Windholz, Simran Madaan

Faculty Publications

The Arctic-boreal zone and its permafrost regions have historically been sparsely measured for carbon dioxide and methane fluxes. This data sparsity has created significant uncertainties in Arctic-boreal carbon budget estimates. However, over the past decade, the availability of Arctic-boreal carbon flux data has increased substantially. Yet, it remains scattered across different repositories, papers, and unpublished sources, making it hard to estimate more accurate Arctic-boreal carbon budgets. To address this research gap, we have compiled a database of Arctic-boreal carbon fluxes (ABCFlux v2) from flux repositories, literature, and site principal investigators, which will be openly distributed. The database includes carbon dioxide …