Digital Commons Network^™

Soil Legacy Nutrients Contribute To The Decreasing Stoichiometric Ratio Of N And P Loading From The Mississippi River Basin, Zihao Bian, Hanqin Tian, Shufen Pan, Hao Shi, Chaoqun Lu, Christopher Anderson, Wei Jun Cai, Charles S. Hopkinson, Dubravko Justic, Latif Kalin, Steven Lohrenz, Steven Mcnulty, Naiqing Pan, Ge Sun, Zhuonan Wang, Yuanzhi Yao, Yongfa You

Faculty Publications

Human-induced nitrogen–phosphorus (N, P) imbalance in terrestrial ecosystems can lead to disproportionate N and P loading to aquatic ecosystems, subsequently shifting the elemental ratio in estuaries and coastal oceans and impacting both the structure and functioning of aquatic ecosystems. The N:P ratio of nutrient loading to the Gulf of Mexico from the Mississippi River Basin increased before the late 1980s driven by the enhanced usage of N fertilizer over P fertilizer, whereafter the N:P loading ratio started to decrease although the N:P ratio of fertilizer application did not exhibit a similar trend. Here, we hypothesize that different release rates of …

A Survey On Mosquito Control Knowledge And Insecticide Use In New Orleans, La, 2020–2021, Erin R. Cloherty, Janet C. Mcallister, James A. Ottea, Kristen Healy, Claudia Riegel

Faculty Publications

Mosquitoes are a known public nuisance and can vector various diseases. Historically, New Orleans, LA, has long been acquainted with the burden of mosquito-borne diseases, such as malaria and yellow fever in the 20th century and West Nile virus in the 21st century. Government mosquito control awareness campaigns have been around for decades as has the use of organophosphate and pyrethroid insecticides by mosquito abatement districts. However, few data are available on public perception of mosquito control and public usage of insecticides to kill mosquitoes in New Orleans. We conducted a survey from August 2020 to July 2021 to evaluate …

Taxonomic Profiling Of Nasutitermes Takasagoensis Microbiota To Investigate The Role Of Termites As Vectors Of Bacteria Linked To Ironwood Tree Decline In Guam, Garima Setia, Junyan Chen, Robert Schlub, Claudia Husseneder

Faculty Publications

The ironwood tree (Casuarina equisetifolia, family Casuarinaceae), an indigenous agroforestry species in Guam, has been threatened by ironwood tree decline (IWTD) since 2002. Formation of bacterial ooze by the wilt pathogen from the Ralstonia solanacearum species complex and wetwood bacteria (primarily Klebsiella species) has been linked to IWTD. In addition, termite infestation of trees was statistically associated with IWTD. Termites are known carriers of a diverse microbiome. Therefore, we hypothesized that termites could be vectors of bacteria linked to IWTD. To investigate the potential role of termites as pathogen vectors, we employed next-generation 16S rRNA gene sequencing to describe the …

Building Resilience To Extreme Weather And Climate Events In The Rural Water And Wastewater Sectors, Nathan P. Kettle, Sarah F. Trainor, Renee Edwards, Donald Antrobus, Curt Baranowski, Tina Buxbaum, Kevin Berry, Michael Brubaker, Kristine L. De Long, Steve Fries, Davin Holen, Barry Keim, Danielle Meeker, Harry Penn, Cheryl Rosa, Rick Thoman, John Walsh, Jian Zhang

Faculty Publications

Extreme weather and climate events pose significant risks to rural water and wastewater systems. We examine the vulnerability of the water sector to weather and climate extremes in rural, predominantly Indigenous and underserved coastal areas and analyze how networks support resilience. Drawing on the analysis of 39 web-based questionnaire responses and 19 interviews with rural water and wastewater managers and service providers in southern Louisiana and western Alaska, this article reports a range of interrelated historical, environmental, and social factors that influence vulnerability to extreme weather events. Formal and informal social networks serve multiple roles in building resilience. These roles …

A Trait Dataset For Freshwater Mussels Of The United States Of America, Garrett W. Hopper, Jamie R. Bucholz, Traci P. Dubose, Kaelyn J. Fogelman, Sean M. Keogh, Megan E. Kubala, Matthew B. Lodato, David H. Nichols, Irene Sánchez González, John M. Pfeiffer, James A. Stoeckel, Jeffrey D. Lozier, Carla L. Atkinson

Faculty Publications

The United States of America has a diverse collection of freshwater mussels comprising 301 species distributed among 59 genera and two families (Margaritiferidae and Unionidae), each having a unique suite of traits. Mussels are among the most imperilled animals and are critical components of their ecosystems, and successful management, conservation and research requires a cohesive and widely accessible data source. Although trait-based analysis for mussels has increased, only a small proportion of traits reflecting mussel diversity in this region has been collated. Decentralized and non-standardized trait information impedes large-scale analysis. Assembling trait data in a synthetic dataset enables comparison across …

Personalized Feedback Intervention For Individuals With Low Distress Tolerance Who Smoke Cigarettes: A Randomized Controlled Trial Of A Digital Intervention, Brooke Y. Redmond, Aniqua Salwa, Jonathan B. Bricker, Julia D. Buckner, Lorra Garey, Michael J. Zvolensky

Faculty Publications

Introduction: Cigarette smoking remains the leading preventable cause of death and disability in the United States and frequently co-occurs with anxiety and depressive symptoms. A novel and integrative, theory-driven approach to address the heterogeneity of mood-related symptoms associated with cigarette use is to focus on transdiagnostic processes, such as distress tolerance, that underpin both mood-related symptoms and smoking behavior. The current study sought to develop and examine the feasibility, acceptability, and initial efficacy of a digitally delivered integrated personalized feedback intervention (PFI) that addresses smoking-distress tolerance relations. Methods: Participants included 121 adults (71.1 % male; Mage = 29.33 years, SD …

Modeling Of Cryopreservation Pathway Operation At An Aquatic Biomedical Stock Center For Zebrafish, Sarah Bodenstein, Fidan Abdullayeva, Joy M. Murphy, Zoltan M. Varga, Terrence R. Tiersch

Faculty Publications

Aquatic biomedical model organisms play a substantial role in advancing our understanding of human health, however, comparably little work has been directed towards developing dependable, high-throughput storage programs for valuable genetic resources. The Zebrafish International Resource Center (ZIRC) has developed a standardized cryopreservation pathway and stored thousands of genetic lines in their repository for use by the biomedical research community. This has yet to be replicated in other facilities, and an overall repository-level pathway has never been analyzed for aquatic species. To encourage repository development for other biomedical models and to improve the ZIRC storage process and system, this study …

Global Dataset Of Soil Organic Carbon In Tidal Marshes, Tania L. Maxwell, André S. Rovai, Maria Fernanda Adame, Janine B. Adams, José Álvarez-Rogel, William E.N. Austin, Kim Beasy, Francesco Boscutti, Michael E. Böttcher, Tjeerd J. Bouma, Richard H. Bulmer, Annette Burden, Shannon A. Burke, Saritta Camacho, Doongar R. Chaudhary, Gail L. Chmura, Margareth Copertino, Grace M. Cott, Christopher Craft, John Day, Carmen B. De Los Santos, Lionel Denis, Weixin Ding, Joanna C. Ellison, Carolyn J. Ewers Lewis, Luise Giani, Maria Gispert, Swanne Gontharet, José A. González-Pérez, M. Nazaret González-Alcaraz, Connor Gorham, Anna Elizabeth L. Graversen, Anthony Grey

Faculty Publications

Tidal marshes store large amounts of organic carbon in their soils. Field data quantifying soil organic carbon (SOC) stocks provide an important resource for researchers, natural resource managers, and policy-makers working towards the protection, restoration, and valuation of these ecosystems. We collated a global dataset of tidal marsh soil organic carbon (MarSOC) from 99 studies that includes location, soil depth, site name, dry bulk density, SOC, and/or soil organic matter (SOM). The MarSOC dataset includes 17,454 data points from 2,329 unique locations, and 29 countries. We generated a general transfer function for the conversion of SOM to SOC. Using this …

Deep Learning For Enhanced Free-Space Optical Communications, M. P. Bart, N. J. Savino, P. Regmi, L. Cohen, H. Safavi, H. C. Shaw, S. Lohani, T. A. Searles, B. T. Kirby, H. Lee, R. T. Glasser

Faculty Publications

Atmospheric effects, such as turbulence and background thermal noise, inhibit the propagation of light used in ON-OFF keying (OOK) free-space optical (FSO) communication. Here we present and experimentally validate a convolutional neural network (CNN) to reduce the bit error rate of FSO communication in post-processing that is significantly simpler and cheaper than existing solutions based on advanced optics. Our approach consists of two neural networks, the first determining the presence of bit sequences in thermal noise and turbulence and the second demodulating the bit sequences. All data used for training and testing our network is obtained experimentally by generating OOK …

Multiphoton Quantum Van Cittert-Zernike Theorem, Chenglong You, Ashe Miller, Roberto De J. León-Montiel, Omar S. Magaña-Loaiza

Faculty Publications

Recent progress on quantum state engineering has enabled the preparation of quantum photonic systems comprising multiple interacting particles. Interestingly, multiphoton quantum systems can host many complex forms of interference and scattering processes that are essential to perform operations that are intractable on classical systems. Unfortunately, the quantum coherence properties of multiphoton systems degrade upon propagation leading to undesired quantum-to-classical transitions. Furthermore, the manipulation of multiphoton quantum systems requires nonlinear interactions at the few-photon level. Here, we introduce the quantum van Cittert-Zernike theorem to describe the scattering and interference effects of propagating multiphoton systems. This fundamental theorem demonstrates that the quantum …

Healthy Eating And Active Living Policy, Systems, And Environmental Changes In Rural Louisiana: A Contextual Inquiry To Inform Implementation Strategies, Bailey Houghtaling, Laura Balis, Nila Pradhananga, Melissa Cater, Denise Holston

Faculty Publications

Background: Healthy eating and active living policy, systems, and environmental (PSE) changes are implemented across the United States through Cooperative Extension. However, translating multisector PSE changes to practice in community settings is challenging and there is a lack of knowledge about barriers and facilitators to PSE changes among state Extension systems using standardized frameworks. Therefore, a research-to-practice partnership effort aimed to identify Louisiana Cooperative Extension Service Family and Consumer Science (LFCS) practitioners’ barriers and facilitators to implementing PSE changes in rural Louisiana communities. Methods: A qualitative approach using the 2022 Consolidated Framework for Implementation Research (2022 CFIR) was used. Focus …

Mid-Miocene Sea Level Altitude Of The Qaidam Basin, Northern Tibetan Plateau, Yuanyuan Sun, Yu Liang, Hu Liu, Jun Liu, Junliang Ji, Xue Ke, Xiaobo Liu, Yuxin He, Huanye Wang, Bin Zhang, Yongsu Zhang, Guangsheng Zhuang, Junling Pei, Yongxiang Li, Cheng Quan, Jianxing Li, Jonathan C. Aitchison, Weiguo Liu, Zhonghui Liu

Faculty Publications

A detailed uplift history of the Tibetan Plateau is essential for disentangling the proposed geodynamical models and assessing its impacts on climate and biodiversity. However, when and how the plateau formed remains highly controversial. Here, we present unusual geochemical indicators of marine signatures in the Cenozoic terrestrial strata of the Qaidam Basin, northern Tibetan Plateau, with strong implications for the basin altitude. Our investigations across the basin reveal typical marine alkenones and anomalously high carbonate carbon isotopic values during the mid-Miocene, but not at earlier stages, which are accompanied by a divergent trend in the paired carbonate oxygen and leaf …

African Bovid Tribe Classification Using Transfer Learning And Computer Vision, Manuel Domínguez-Rodrigo, Juliet Brophy, Gregory J. Mathews, Marcos Pizarro-Monzo, Enrique Baquedano

Faculty Publications

Objective analytical identification methods are still a minority in the praxis of paleobiological sciences. Subjective interpretation of fossils and their modifications remains a nonreplicable expert endeavor. Identification of African bovids is a crucial element in the reconstruction of paleo-landscapes, ungulate paleoecology, and, eventually, hominin adaptation and ecosystemic reconstruction. Recent analytical efforts drawing on Fourier functional analysis and discrimination methods applied to occlusal surfaces of teeth have provided a highly accurate framework to correctly classify African bovid tribes and taxa. Artificial intelligence tools, like computer vision, have also shown their potential to be objectively more accurate in the identification of taphonomic …

Multiscale Analysis Of Spatial Accessibility To Acute Hospitals In Carinthia, Austria, Changzhen Wang, Michael Leitner, Gernot Paulus

Faculty Publications

Health care accessibility studies are well established in the US but lacking in Austria, even though both experience high costs and have hospital care as the largest contributor to health care spending. This study aims to examine multiscale spatial accessibility to acute hospitals in Carinthia, Austria. Using the most recent data at census block and 250 meter grid levels, we refine proximity and generalized two-step floating catchment area (G2SFCA) methods while accounting for the modifiable areal unit problem (MAUP) and edge effects. For census blocks and 250 meter grids, the mean travel times to the nearest acute hospitals are 16 …

Digital Archives: How Western Newspapers Frame Our Remembrance Of The Gezi Park Protest, Nihar Sreepada, Ahmet Aksoy

Faculty Publications

We analyze the coverage of the Gezi Park protests by two major Western newspapers - The New York Times and The Guardian - through the lens of media framing, rhetoric, and collective memory. We argue that these digital archives frame Turkey's Gezi Park protests as a challenge to an authoritarian government by promoting the themes of unrest as a conflict of ideologies, oppression of citizens, and the park as a site of memory. In a concluding section, we focus on the significance of digital archives as repositories of collective memory and the role of media framing in shaping these reconstructions …

Laundering Police Lies, Adam Gershowitz, Caroline E. Lewis

Faculty Publications

Police officers—like ordinary people—are regularly dishonest. Officers lie under oath (testilying), on police reports (reportilying), and in a myriad of other situations. Despite decades of evidence about police lies, the U.S. Supreme Court regularly believes police stories that are utterly implausible. Either because the Court is gullible, willfully blind, or complicit, the justices have simply rubber-stamped police lies in numerous high-profile cases. For instance, the Court has accepted police claims that a suspect had bags of cocaine displayed in his lap at the end of a police chase (Whren v. United States), that officers saw marijuana through a …

Sentencing In An Era Of Plea Bargains, Jeffrey Bellin, Jenia I. Turner

Faculty Publications

The literature offers inconsistent answers to a question that is foundational to criminal law: Who imposes sentences? Traditional narratives place sentencing responsibility in the hands of the judge. Yet, in a country where 95% of criminal convictions come from guilty pleas (not trials), modern American scholars center prosecutors—who control plea terms—as the deciders of punishment. This Article highlights and seeks to resolve the tension between these conflicting narratives by charting the pathways by which sentences are determined in a system dominated by plea bargains.

After reviewing the empirical literature on sentence variation, examining state and federal plea-bargaining rules and doctrines, …

The Crisis Of Unrepresented Immigrants: Vastly Increasing The Number Of Accredited Representatives Offers The Best Hope For Resolving It, Michele R. Pistone

Faculty Publications

The U.S. immigration system is exceedingly complex, and access to legal representation is the primary determinant in obtaining a just immigration outcome. Immigrants must navigate a byzantine, burdensome, and high-stakes legal process, conducted in a language they often do not speak. They often must do so without any legal representation. Unlike criminal defendants, immigrants are not entitled to government-funded lawyers. Legal services organizations, such as Legal Services Corporation, that receive any federal funding are prohibited from providing legal representation to most immigrants. Faith-based and charitable legal services organizations provide some legal representation to immigrants through attorneys, staff members, and volunteer …

Identifying And Supporting Financially Vulnerable Women Experiencing Economic Abuse: A Grounded Theory Approach, Leslie Book, Ann Kayis-Kumar, Youngdeok Lim, Jack Noone, Michael Walpole, Jan Breckenridge

Faculty Publications

This study extends the literature by exploring the role of pro bono tax clinics within the social impact ecosystem with a focus on the experiences of women in financial distress who are otherwise unable to access professional tax advice. Using clinic data derived from a pro bono tax advisory clinic, this article finds that 58 per cent of financially vulnerable women seeking pro bono tax services have experienced domestic and family violence (DFV), confirming again the link between financial stress and economic abuse. Yet only 3 per cent of these women were receiving domestic and family violence-related support, highlighting the …

The New Candian Defence: The Impact Of Undrip Article 30 On Canadian Domestic Defence Strategy, Preston Jordan Lim

Faculty Publications

Article 30 of the United Nations Declaration on the Rights of Indigenous Peoples articulates a general ban on military activities that take place on Indigenous territory. Despite the potentially significant consequences of article 30 for Canadian defence policy, few scholars have devoted serious attention to the article. This article will fill that gap by discussing the meaning of article 30 and suggesting approaches to implementation that the Canadian state ought to adopt. This article argues that, far from constraining Canadian defence strategy, article 30 may well serve as a catalyst, encouraging Canadian defence planners to take a more community-based approach …

Historical Archives Reveal Record Rainfall And Severe Flooding In December 1867 Resulting From An Atmospheric River And Snowmelt, Western Washington, Usa, Daniel G. Gavin, Patrick J. Bartlein, Cary J. Mock

Faculty Publications

The flooding of 1861-1862 in California and Oregon is the most severe flood event documented in the far western USA and stands as a benchmark for a worst-case atmospheric-river flooding event. In western Washington, historical data are sparser, and 19th-century flood events have consequently not been well documented. We found that rainfall observations from five locations spanning western Washington had no detectable bias when compared to nearby 20th and 21st-century comparator stations. Time series of the four-day precipitation sum revealed an event in December 1867 that was greater than any of the last century at three locations, and in the …

Sediment Delivery To Sustain The Ganges-Brahmaputra Delta Under Climate Change And Anthropogenic Impacts, Jessica L. Raff, Steven L. Goodbred, Jennifer L. Pickering, Ryan S. Sincavage, John C. Ayers, Md Saddam Hossain, Carol A. Wilson, Chris Paola, Michael S. Steckler, Dhiman R. Mondal, Jean Louis Grimaud, Celine Jo Grall, Kimberly G. Rogers, Kazi Matin Ahmed, Syed Humayun Akhter, Brandee N. Carlson, Elizabeth L. Chamberlain, Meagan Dejter, Jonathan M. Gilligan, Richard P. Hale, Mahfuzur R. Khan, Md Golam Muktadir, Md Munsur Rahman, Lauren A. Williams

Faculty Publications

The principal nature-based solution for offsetting relative sea-level rise in the Ganges-Brahmaputra delta is the unabated delivery, dispersal, and deposition of the rivers’ ~1 billion-tonne annual sediment load. Recent hydrological transport modeling suggests that strengthening monsoon precipitation in the 21st century could increase this sediment delivery 34-60%; yet other studies demonstrate that sediment could decline 15-80% if planned dams and river diversions are fully implemented. We validate these modeled ranges by developing a comprehensive field-based sediment budget that quantifies the supply of Ganges-Brahmaputra river sediment under varying Holocene climate conditions. Our data reveal natural responses in sediment supply comparable to …

Development Of A Methodology For The Quantification Of Reaerosolization Of A Biological Contaminate Surrogate Particle From A Military Uniform Fabric, George Cooksey, Jeremy M. Slagley, Casey W. Cooper, Douglas Lewis, Alisha Helm

Faculty Publications

In a mass casualty medical evacuation after a bioaerosol (BA) dispersal event, a decontamination (DC) method is needed that can both decontaminate and prevent biological particle (BP) re-aerosolization (RA) of contaminated clothes. However, neither the efficacy of current DC methods nor the risk of BP RA is greatly explored in the existing literature. The goals of this study were to develop a repeatable method to quantify the RA of a biological contaminant off military uniform fabric swatches and to test the efficacy of one DC protocol (high-volume, low-pressure water) using 1 µm polystyrene latex (PSL) spheres as a surrogate. A …

What The Book Of First Enoch And The Aramaic Dead Sea Scrolls Reveal About The History Of The Qumran Community, Kenneth Atkinson

Faculty Publications

The Aramaic book commonly known as First Enoch is among the most important of all the compositions found in the Dead Sea Scrolls. The fragments of this pseudepigraphal work and related documents provide new information about the use and growth of the Enochic traditions, as well as how their contents influenced the community that collected and placed the Dead Sea Scrolls in the caves in the vicinity of Khirbet Qumran. Research on the Enochic literature in this corpus of documents is important for Jewish studies and for understanding the history of Christianity since the New Testament cites from and alludes …

A Critical Systematic Literature Review Of Global Inclusive Education Using An Affective, Intersectional, Discursive, Emotive And Material Lens, David Isaac Hernández-Saca, Catherine Kramarczuk Voulgarides, Susan Larson Etscheidt

Faculty Publications

We conducted a critical systematic literature review on global inclusive education and law. The critical review questions were: (1) how have scholars theorized, conceptualized, and studied global inclusive education? (2) How do scholars define global inclusive education? (3) And what do scholars cite as prominent international inclusive education law? We ask such questions given the ongoing global crises that situate historically marginalized groups in even more precarious positions—including students with dis/Abilities. Given this framing, we employed a critical systematic literature review that is cognizant of our positionalities, writing from the Global North, so that we can identify lines of inquiry …

Disease Severity Of Covid-19 In Different Phases Of The Pandemic: Do Healthcare Workers Have Better Outcomes?, Xueying Yang Ph.D., Fanghui Shi, Jiajia Zhang Ph.D., Haoyuan Gao, Shujie Chen, Bankole Olatosi Ph.D., Sharon Weissman, Xiaoming Li Ph.D.

Faculty Publications

Background:

This study aimed to characterize and compare the demographics, clinical profile, and COVID-19 outcomes between healthcare workers (HCWs) and non-HCWs COVID-19 patients diagnosed in different phases of the pandemic defined by the vaccine rollout policy and different variants that circulated in South Carolina (SC).

Methods:

Extracted from the statewide electronic health record data, we analyzed the clinical outcome of 34,502 HCWs and 1,071,020 non-HCWs adults diagnosed with SARS-CoV-2 between March 2, 2020 to April 14, 2022. Logistic regression models were used to explore the association between different pandemic phases and COVID-19 severity-related outcomes.

Results:

Substantial reductions in mortality were …

Racial Disparities In Adequacy Of Prenatal Care During The Covid-19 Pandemic In South Carolina, 2018–2021, Emmanuel Fabrice Julceus Md, Mph, Bankole Olatosi Ph.D., Peiyin Hung Ph.D., Jiajia Zhang Ph.D., Xiaoming Li Ph.D., Jihong Liu Sc.D.

Faculty Publications

Background: During the COVID-19 pandemic, hospitals’ decision of not admitting pregnant women’s partner or support person, and pregnant women’s fear of contracting COVID-19 in hospitals may disrupt prenatal care. We aimed to examine whether prenatal care utilization in South Carolina varied before and during the COVID-19 pandemic, and whether the variation was different by race.

Methods: We utilized 2018–2021 statewide birth certificate data using a pre-post design, including all women who delivered a live birth in South Carolina. The Kotelchuck Index - incorporating the timing of prenatal care initiation and the frequency of gestational age-adjusted visits - was employed to …

Dual Barriers: Examining Digital Access And Travel Burdens To Hospital Maternity Care Access In The United States, 2020, Peiyin Hung Ph.D., Marion Granger, Nansi Boghossian, Jiani Yu, Sayward Harrison, Jihong Liu Sc.D., Berry A. Campbell, Bo Cai Ph.D., Chen Liang, Xiaoming Li Ph.D.

Faculty Publications

Policy Points The White House Blueprint for Addressing the Maternal Health Crisis report released in June 2022 highlighted the need to enhance equitable access to maternity care. Nationwide hospital maternity unit closures have worsened the maternal health crisis in underserved communities, leaving many birthing people with few options and with long travel times to reach essential care. Ensuring equitable access to maternity care requires addressing travel burdens to care and inadequate digital access. Our findings reveal socioeconomically disadvantaged communities in the United States face dual barriers to maternity care access, as communities located farthest away from care facilities had the …

The Importance Of Cism Responder Self-Care: Don't Neglect Engaging In Meaningful Activities, Harvey J. Burnett Jr, David Sherman

Faculty Publications

No abstract provided.

Correlations Between Educational Struggle, Toxic Sites By School District And Demographic Variables, With Geographical Information System Projections, Junu Shrestha, Raihan K. Khan, Shane Mcclintock, John Degroote, Catherine L. Zeman

Faculty Publications

This correlational study associated data on children enrolled in individualized educational plans in their K-12 schools (IEP) and an algorithm-calculated score of neurotoxins at contaminated sites located in each school district. The study also mapped and projected the correlations using Geographical Information System (GIS) technology. These data were populated in ArcMap 10.5 (a GIS software) for generating maps and data to conduct geospatial analysis. A total of 1 Superfund site and 39 CERCLA sites were identified as contaminated sites for this analysis. The majority of contaminants were heavy metals such as lead, arsenic, mercury, and cadmium. The mean toxic score …