Digital Commons Network^™

The Myth Of The All-Powerful Federal Prosecutor At Sentencing, Adam M. Gershowitz

Faculty Publications

Relying on a dataset I assembled of 130 doctors prosecuted for illegal opioid distribution between 2015 and 2019, this Article shows that judges rejected federal prosecutors’ sentencing recommendations over two-thirds of the time. Put differently, prosecutors lost much more often than they prevailed at sentencing. And judges often rejected the prosecutors’ sentencing positions by dramatic margins. In 23% of cases, judges imposed a sentence that was half or even less than half of what prosecutors recommended. In 45% of cases, judges imposed a sentence that was at least one-third lower than what prosecutors requested. In short, prosecutors lost most of …

Perspectives Of African American Women About Barriers To Breast Cancer Prevention And Screening Practices: A Qualitative Study, Abosede F. Obikunle, Jochebed Bosede Ade-Oshifogun

Faculty Publications

Breast cancer is a severe illness that often has fatal consequences. Adherence to the recommendations for breast cancer surveillance is poorly practiced among African American women. The study aimed to identify barriers to preventative screening for breast cancer among African American women (AAW) using a qualitative research design. We explored the influence of personal barriers, stereotypes, socioeconomic status, culture, attitudes, and beliefs on African American women's behavior regarding breast cancer screening. Fourteen African American women were interviewed. Data analysis was completed with Interpretative Phenomenology Approach (IPA). This study's findings demonstrated that African American women perceived the barriers to breast cancer …

Corporate Governance Guidelines: How To Improve Disclosure And Promote Better Corporate Governance In Public Companies, Jennifer O'Hare

Faculty Publications

If you are a shareholder of a public corporation, you may think it would be easy to find basic information about your shareholder rights, such as whether shareholders have the right to call special stockholder meetings. You would probably assume that the information would be disclosed in the company’s “Corporate Governance Guidelines,” (CGGs) which, according to a New York Stock Exchange (NYSE) rule, must be posted on the company’s website for shareholder review. But, as this article shows, companies are not required to disclose information about shareholder rights in their corporate governance guidelines, and most companies have chosen not to …

Correlates Of Zero-Dose Vaccination Status Among Children Aged 12–59 Months In Sub-Saharan Africa: A Multilevel Analysis Of Individual And Contextual Factors, Chamberline E. Ozigbu, Bankole Olatosi Ph.D., Zhenlong Li, James W. Hardin, Nicole L. Hair

Faculty Publications

Despite ongoing efforts to improve childhood vaccination coverage, including in hard-to-reach and hard-to-vaccinate communities, many children in sub-Saharan Africa (SSA) remain unvaccinated. Considering recent goals set by the Immunization Agenda 2030 (IA2030), including reducing the number of zero-dose children by half, research that goes beyond coverage to identify populations and groups at greater risk of being unvaccinated is urgently needed. This is a pooled cross-sectional study of individual- and country-level data obtained from Demographic and Health Surveys Program and two open data repositories. The sample includes 43,131 children aged 12–59 months sampled between 2010 and 2020 in 33 SSA countries. …

Correlates Of Zero-Dose Vaccination Status Among Children Aged 12-59 Months In Sub-Saharan Africa: A Multilevel Analysis Of Individual And Contextual Factors, Chamberline Ozigbu, Bankole Olatosi, Zhenlong Li, James W. Hardin, Nicole L. Hair

Faculty Publications

Despite ongoing efforts to improve childhood vaccination coverage, including in hard-to-reach and hard-to-vaccinate communities, many children in sub-Saharan Africa (SSA) remain unvaccinated. Considering recent goals set by the Immunization Agenda 2030 (IA2030), including reducing the number of zero-dose children by half, research that goes beyond coverage to identify populations and groups at greater risk of being unvaccinated is urgently needed. This is a pooled cross-sectional study of individual- and country-level data obtained from Demographic and Health Surveys Program and two open data repositories. The sample includes 43,131 children aged 12–59 months sampled between 2010 and 2020 in 33 SSA countries. …

“Where The Truth Really Lies”: Listening To Voices From African American Communities In The Southern States About Covid-19 Vaccine Information And Communication, Ran Zhang, Shan Qiao, Brooke Mckeever, Bankole Olatosi, Xiaoming Li

Faculty Publications

The high uptake of COVID-19 vaccines is one of the most promising measures to control the pandemic. However, some African American (AA) communities exhibit vaccination hesitancy due to mis- or disinformation. It is important to understand the challenges in accessing reliable COVID-19 vaccine information and to develop feasible health communication interventions based on voices from AA communities. We conducted 2 focus group discussions (FGDs) among 18 community stakeholders recruited from 3 counties in South Carolina on 8 October and 29 October 2021. The FGDs were conducted online via Zoom meetings. The FGD data were managed and thematically analyzed using NVivo …

Listening To Voices From African American Communities In The Southern States About Covid-19 Vaccine Information And Communication: A Qualitative Study, Ran Zhang, Shan Qiao, Bankole Olatosi Ph.D., Xiaoming Li Ph.D.

Faculty Publications

The high uptake of COVID-19 vaccines is one of the most promising measures to control the pandemic. However, some African American (AA) communities exhibit vaccination hesitancy due to mis- or disinformation. It is important to understand the challenges in accessing reliable COVID-19 vaccine information and to develop feasible health communication interventions based on voices from AA communities. We conducted 2 focus group discussions (FGDs) among 18 community stakeholders recruited from 3 counties in South Carolina on 8 October and 29 October 2021. The FGDs were conducted online via Zoom meetings. The FGD data were managed and thematically analyzed using NVivo …

Eeg Evidence Of Altered Functional Connectivity And Microstate In Children Orphaned By Hiv/Aids, Huang Gu, Xueke Shan, Hui He, Junfeng Zhao, Xiaoming Li Ph.D.

Faculty Publications

Children orphaned by HIV/AIDS (“AIDS orphans”) suffer numerous early-life adverse events which have a long-lasting effect on brain function. Although previous studies found altered electroencephalography (EEG) oscillation during resting state in children orphaned by HIV/AIDS, data are limited regarding the alterations in connectivity and microstate. The current study aimed to investigate the functional connectivity (FC) and microstate in children orphaned by HIV/AIDS with resting-state EEG data. Data were recorded from 63 children orphaned by HIV/AIDS and 65 non-orphan controls during a close-eyes resting state. The differences in phase-locking value (PLV) of global average FC and temporal dynamics of microstate were …

We Must Stop Fossil Fuel Emissions To Protect Permafrost Ecosystems, Benjamin W. Abbott, Michael Brown, Joanna C. Carey, Jessica G. Ernakovich, Jennifer M. Frederick, Laodong Guo, Gustaf Hugelius, Raymond M. Lee, Michael M. Loranty, Robie Macdonald, Paul J. Mann, Susan M. Natali, David Olefeldt, Pam Pearson, Abigail Rec, Martin Robards, Verity G. Salmon, Sara Sayedi, Christina Schadel, Edward A. G. Schuur, Sarah Shakil, Arial J. Shogren, Jens Strauss, Suzanne E. Tank, Brett F. Thornton, Rachael Treharne, Merritt Turetsky, Carolina Voigt, Nancy Wright, Yuanhe Yang, Jay P. Zarnetske, Qiwen Zhang, Scott Zolkos

Faculty Publications

Climate change is an existential threat to the vast global permafrost domain. The diverse human cultures, ecological communities, and biogeochemical cycles of this tenth of the planet depend on the persistence of frozen conditions. The complexity, immensity, and remoteness of permafrost ecosystems make it difficult to grasp how quickly things are changing and what can be done about it. Here, we summarize terrestrial and marine changes in the permafrost domain with an eye toward global policy. While many questions remain, we know that continued fossil fuel burning is incompatible with the continued existence of the permafrost domain as we know …

Correction To: A Digital Health Program For Treatment Of Urinary Incontinence: Retrospective Review Of Real‑World User Data (International Urogynecology Journal, (2023), 34, 5, (1083-1089), 10.1007/S00192-022-05321-3), Laura E. Keyser, Jessica L. Mckinney, Samantha J. Pulliam, Milena M. Weinstein

Faculty Publications

The article “A digital health program for treatment of urinary incontinence: retrospective review of real‑world user data”, written by Laura E. Keyser, Jessica L. McKinney, Samantha J. Pulliam, and Milena M. Weinstein, was originally published Online First without Open Access. After publication in volume 34, issue 5, pages 1083–1089 the author decided to opt for Open Choice and to make the article an Open Access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2022 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits use, …

Association Between The Dietary Inflammatory Index And Gastric Disease Risk: Findings From A Korean Population-Based Cohort Study, Sundara Raj Sreeja, Trong-Dat Le, Bang Wool Eom, Seung Hyun Oh, Nitin Shivappa Mbbs, Mph, Ph.D., James R. Hébert Scd, Mi Kyung Kim

Faculty Publications

Evidence suggests that diets with high pro-inflammatory potential may play a substantial role in the origin of gastric inflammation. This study aimed to examine the association between the energy-adjusted dietary inflammatory index (E-DIITM) and gastric diseases at baseline and after a mean follow-up of 7.4 years in a Korean population. A total of 144,196 participants from the Korean Genome and Epidemiology Study_Health Examination (KoGES_HEXA) cohort were included. E-DII scores were computed using a validated semi-quantitative food frequency questionnaire. Multivariate logistic regression and Cox proportional hazards regression were used to assess the association between the E-DII and gastric disease risk. In …

Household Food Insecurity Is Associated With Diabetic Ketoacidosis But Not Severe Hypoglycemia Or Glycemic Control In Youth And Young Adults With Youth‐Onset Type 2 Diabetes, Lauren A. Reid, Jason A. Mendoza, Anwar T. Nerchant, Marco Geraci, Beth A. Reboussin, Faisal S. Malik, Alice M. Ellyson, Dana Dabelea, Lina Merjaneh, Santica M. Marcovina, Eva Lustigova, Jean .. Lawrence, Angela D. Liese Ph.D.

Faculty Publications

Objective: To examine the association between household food insecurity (HFI), glycemic control, severe hypoglycemia and diabetic ketoacidosis (DKA) among youth and young adults (YYA) with youth-onset type 2 diabetes.

Research design and methods: This cross-sectional study included 395 YYA with type 2 diabetes from the SEARCH for Diabetes in Youth Study (2015–2019). HFI was reported by young adult participants or parents of minor participants via the US Household Food Security Survey Module. Glycemic control was assessed by HbA1c and analyzed as a continuous and categorical variable (optimal:9.0%). Acute complications included self-reported severe hypoglycemia or DKA in the last 12 months. …

Inhibitory Control Of Emotional Interference In Deaf Children: Evidence From Event-Related Potentials And Event-Related Spectral Perturbation Analysis, Qiong Chen, Junfeng Zhao, Huang Gu, Xiaoming Li Ph.D.

Faculty Publications

Background: Impairment of interference control ability may reflect a more general deficit in executive functioning, and lead to an increase in internal-externalized problems such as impulsivity, which has been reported in deaf children. However, few researches have examined the neural mechanism of this impairment.

Methods: This study applied the electroencephalogram (EEG) technique to investigate the interference control ability in 31 deaf children and 28 hearing controls with emotional face-word stroop task.

Results: Results from behavioral task showed that deaf children exhibited lower accuracy compared to hearing controls. As for EEG analysis, reduced activation of ERP components in N1 and enhanced …

Enhanced Force Field Analysis (E-Ffa) Templates, Alisha Redelfs, Leah D. Whigham

Faculty Publications

Evaluation is an essential component of public health practice to understand the reach and impact of a program or the functioning of a system. We propose that Enhanced Force Field Analysis (E-FFA), incorporating strategic planning (force field analysis), participatory approaches, and elements of Appreciative Inquiry, is a powerful and versatile tool for evaluators, program developers, and community organizations to optimize programs, understand systems, or assess innovations. E-FFA can work with large or small groups and is flexible enough to work in many contexts.

These E-FFA printable templates include a facilitator's guide, a participant handout (2 per sheet), and scorecards (8 …

Does Hiv-Related Stigma Depress Social Well-Being Of Youths Affected By Parental Hiv/Aids?, Yafei Zhao, Jiaojiao Wan, Lili Ji, Giagai Lui, Yixin Shi, Junfeng Zhao, Xiaoming Li Ph.D.

Faculty Publications

Parental illness or death due to HIV/AIDS has long-term impacts on children’s social well-being, potentially challenging the children’s basic developmental needs and future. Based on the theoretical model of social well-being, the present study tested a moderated mediation model that HIV-related stigma moderated the mediating role of social trust on the relationship between perceived social support (PSS) and social well-being. A sample of 297 youths aged 20–30 years affected by parental HIV/AIDS (57.2% male), including 129 (43.40%) AIDS orphans and 168 vulnerable youths (56.60%) completed questionnaires of perceived social support, social well-being, social trust, and HIV-related stigma. IBM SPSS 25.0 …

Adolescent Health Risk Behaviors, Adverse Experiences, And Self-Reported Hunger: Analysis Of 10 States From The 2019 Youth Risk Behavior Surveys, Kathryn L. Krupsky, Sarah Silwa, Hilary Seligman, Andrea D. Brown, Angela D. Liese Ph.D., Zewditu Demissie, Ellen Barnidge

Faculty Publications

We examined associations between adolescent self-reported hunger, health risk behaviors, and adverse experiences during the 2018–2019 school year. Youth Risk Behavior Survey data were pooled from 10 states. Prevalence ratios were calculated, and we assessed effect measure modification by sex. The prevalence of self-reported hunger was 13%. Self-reported hunger was associated with a higher prevalence of every health risk behavior/adverse experience analyzed, even after adjusting for sex, grade, and race/ethnicity. Sex did not modify associations. Findings underscore needs for longitudinal research with more robust measures of adolescent food insecurity to clarify the temporality of relationships.

Racial And Ethnic Disparities In Postpartum Care In The Greater Boston Area During The Covid-19 Pandemic, Tianyue Mi, Peiyin Hung, Xiaoming Li Ph.D., Alecia Mcgregor, Jinggui He, Jie Zhou

Faculty Publications

IMPORTANCE Racial and ethnic disparities in postpartum care access have been well identified in the United States. Such disparities could be exacerbated by the COVID-19 pandemic because of amplified economic distress and compromised social capital among pregnant women who belong to racial or ethnic minority groups.

OBJECTIVE To examine whether the COVID-19 pandemic is associated with an increase in the existing racial and ethnic disparity in postpartum care access.

DESIGN, SETTING, AND PARTICIPANTS This was a retrospective cohort study using electronic health records data. Multinomial logistic regressions in an interrupted time series approach were used to assess monthly changes in …

Pilot Development: An Empirical Mixed-Method Analysis, Jonathan Slottje, Jason Anderson, John M. Dickens, Adam D. Reiman

Faculty Publications

Purpose — Pilot upgrade training is critical to aircraft and passenger safety. This study aims to identify variances in the US Air Force C-130J pilot upgrade training based on geographic location and provide a model to enhance policy that will impact future pilot training efforts that lower cost and increase operator quality and proficiency.
Design/methodology/approach — This research employed a mixed-method approach. First, the authors collected data and analyzed 90 C-130J pilots' aviation records and then contextualized this analysis with interviews of experts. Finally, the authors present a modified version of Six Sigma's define–measure–analyze–improve–control (DMAIC) that identifies and reduces the …

Event-Related Brain Potential Correlates Of Event-Based Prospective Memory In Children With Learning Disability, Lili Jing, Qi Zhao, Yafei Zhang, Jiaojiao Wan, Xiaoming Li Ph.D.

Faculty Publications

Prospective memory (PM) has been reported to be impaired in children with learning disabilities (LD), but few studies have examined the underlying neural mechanism of this impairment. To address this issue, the present study applied ERP technique to explore the difference of event-based prospective memory (EBPM) in 21 children with LD and 20 non-LD children with double task paradigm. Results from behavioral data showed that LD children exhibited lower accuracy than non-LD children. The ERP results showed that the two groups displayed significant difference in the ERP components, with longer N300 latency in LD group, but there was no obvious …

Characteristics And Evolution Of Brown Carbon In Western United States Wildfires, Linghan Zeng, Jack E. Dibb, Eric Scheuer, Joseph M. Katich, Joshua P. Schwarz, Ilann Bourgeois, Jeff Peischl, Tom Ryerson, Carsten Warneke, Anne E. Perring, Glenn S. Diskin, Joshua P. Digangi, John B. Nowak, Richard H. Moore, Elizabeth B. Wiggins, Demetrios Pagonis, Hongyu Guo, Pedro Campuzano-Jost, Jose L. Jimenez, Lu Xu, Rodney J. Weber

Faculty Publications

Brown carbon (BrC) associated with aerosol particles in western United States wildfires was measured between July and August 2019 aboard the NASA DC-8 research aircraft during the Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) study. Two BrC measurement methods are investigated, highly spectrally resolved light absorption in solvent (water and methanol) extracts of particles collected on filters and in situ bulk aerosol particle light absorption measured at three wavelengths (405, 532 and 664 nm) with a photoacoustic spectrometer (PAS). A light-absorption closure analysis for wavelengths between 300 and 700 nm was performed. The combined light absorption of particle …

Microbiome Assembly In Thawing Permafrost And Its Feedbacks To Climate, Jessica G. Ernakovich, Robyn A. Barbato, Virginia I. Ritch, Christina Schadel, Rebecca E. Hewitt, Stacey J. Doherty, Emily D. Whalen, Benjamin Abbott, Jiri Barta, Christina Biasi, Chris L. Chabot, Jenni Hultman, Christian Knoblauch, Maggie C. Y. Lau Vetter, Mary-Cathrine Leewis, Susanne Liebner, Rachel Mackelprang, Tullis C. Onstott, Andreas Richter, Ursel M. E. Schutte, Henri M. P. Siljanen, Neslihan Tas, Ina Timling, Tatiana A. Vishnivetskaya, Mark P. Waldrop, Matthias Winkel

Faculty Publications

The physical and chemical changes that accompany permafrost thaw directly influence the microbial communities that mediate the decomposition of formerly frozen organic matter, leading to uncertainty in permafrost–climate feedbacks. Although changes to microbial metabolism and community structure are documented following thaw, the generality of post-thaw assembly patterns across permafrost soils of the world remains uncertain, limiting our ability to predict biogeochemistry and microbial community responses to climate change. Based on our review of the Arctic microbiome, permafrost microbiology, and community ecology, we propose that Assembly Theory provides a framework to better understand thaw-mediated microbiome changes and the implications for community …

Robust Network Stability Of Mosquitoes And Human Pathogens Of Medical Importance, Donald A. Yee, Catherine Dean Bermond, Limarie J. Reyes-Torres, Nicole S. Fijman, Nicole A. Scavo, Joseph Nelsen, Susan H. Yee

Faculty Publications

Background: The exact number of mosquito species relevant to human health is unknown, posing challenges in understanding the scope and breadth of vector–pathogen relationships, and how resilient mosquito vector–pathogen networks are to targeted eradication of vectors.

Methods: We performed an extensive literature survey to determine the associations between mosquito species and their associated pathogens of human medical importance. For each vector–pathogen association, we then determined the strength of the associations (i.e., natural infection, lab infection, lab dissemination, lab transmission, known vector). A network analysis was used to identify relationships among all pathogens and vectors. Finally, we examined how …

How Different Pre-Existing Mental Disorders And Their Co-Occurrence Affects Covid-19 Clinical Outcomes? A Real-World Data Study In The Southern United States, Shan Qiao Ph.D., Jiajia Zhang Ph.D., Shujie Chen, Bankole Olatosi Ph.D., Suzanne Hardeman, Meera Narasimhan, Larisa Bruner, Abdoulaye Diedhiou, Cheryl Scott, Ali Mansaray, Sharon Weissman, Xiaoming Li Ph.D.

Faculty Publications

Background: Although a psychiatric history might be an independent risk factor for COVID-19 infection and mortality, no studies have systematically investigated how different clusters of pre-existing mental disorders may affect COVID-19 clinical outcomes or showed how the coexistence of mental disorder clusters is related to COVID-19 clinical outcomes.

Methods: Using a retrospective cohort study design, a total of 476,775 adult patients with lab-confirmed and probable COVID-19 between March 06, 2020 and April 14, 2021 in South Carolina, United States were included in the current study. The electronic health record data of COVID-19 patients were linked to all payer-based claims data …

The Nexus Of The Indoor Co2 Concentration And Ventilation Demands Underlying Co2-Based Demand-Controlled Ventilation In Commercial Buildings: A Critical Review, Xing Lu, Zhihong Pang, Yangyang Fu, Zheng O'Neill

Faculty Publications

The carbon dioxide (CO2)-based demand-controlled ventilation (DCV) has attracted prompt attention from the Heating, Ventilation, and Air-Conditioning (HVAC) industry since its very first invention. Since then, it has been penetrating from simple single-zone systems to complex system configurations in commercial buildings. While there has accumulated a large number of research on DCV applications, the most recent review paper on this topic was dated back to 2001 and inevitably missed a lot of recent revolutionary technologies. Therefore, to understand the opportunities and challenges associated with the CO2-based DCV, this study presents a timely review on the revolutions of the CO2-based DCV …

Does Income Class Affect Life Satisfaction? New Evidence From Cross-Country Microdata, Joanne Haddad, Jad Chaaban, Ali Chalak, Hala Ghattas Ph.D.

Faculty Publications

This paper analyzes the impact of income class on subjective wellbeing. Using rich data from the Gallup World Poll, we investigate whether belonging to locally (both country-and time-specific) defined income classes influences individuals’ life satisfaction. We rely on a latent class analysis estimation method, using individual income proxied by household income divided by household size, as an observable characteristic to hypothesize the income classes. We fit a model with one categorical latent variable with three unobserved groupings, here: income classes, which we interpret as lower, middle and upper classes. Our estimates suggest that individuals in the low and middle income …

How Different Pre-Existing Mental Disorders And Their Co-Occurrence Affects Covid-19 Clinical Outcomes? A Real-World Data Study In The Southern United States, Shan Qiao Ph.D., Jiajia Zhang Ph.D., Shujie Chen, Bankole Olatosi Ph.D., Suzanne Hardeman, Meera Narasimhan, Larisa Bruner, Abdoulaye Diedhiuo, Cheryl Scott, Ali Mansaray, Sharon Weissman, Xiaoming Li Ph.D.

Faculty Publications

Background: Although a psychiatric history might be an independent risk factor for COVID-19 infection and mortality, no studies have systematically investigated how different clusters of pre-existing mental disorders may affect COVID-19 clinical outcomes or showed how the coexistence of mental disorder clusters is related to COVID-19 clinical outcomes. Methods: Using a retrospective cohort study design, a total of 476,775 adult patients with lab-confirmed and probable COVID-19 between March 06, 2020 and April 14, 2021 in South Carolina, United States were included in the current study. The electronic health record data of COVID-19 patients were linked to all payer-based claims data …

The Inequalities Of Innovation, Colleen Chien

Faculty Publications

Over the last few decades, the United States has become more innovative, but the gains have been distributed unequally. In 2020, over 50% of new U.S. patents went to the top 1% of patentees, and more than 50% of all patents of U.S. origin were generated by just five states, all coastal. Less than 13% of inventors were women. The economic, geographic, and demographic concentration of innovation highlight how the intersections between two traditionally discrete topics—innovation and inequality—have become increasingly relevant. But rather than any single inequality, this Article argues, multiple inequalities—of income, opportunity, and access—have relevance to innovation. Examining …

Differences In Attachment, Resilience, And Negative Affect In Non-Treatment-Seeking And Treatment-Seeking Ems Professionals, Jose Carbajal, Warren N. Ponder, Lauren Malthaner, Kathryn Shahan, Katelyn Jetelina, Jeanine Galusha, Donna Schuman

Faculty Publications

Emergency medical service (EMS) professionals have a stressful vocation, inarguably worsened by the COVID-19 pandemic, which affects their mental health and makes them a vulnerable population warranting further study. However, to date, no published research has compared non-treatment and treatment-seeking EMS professionals in the same greater metropolitan area. In this study, we examined differences and similarities among the non-treatment-seeking EMS professionals (n = 57) from a local EMS agency and treatment-seeking EMS personnel (n = 53) from a non-profit community treatment center on six assessment instruments that measure attachment avoidance, attachment anxiety, resilience, depression, generalized anxiety, posttraumatic stress …

Environmental And Biological Controls On Sedimentary Bottom Types In The Puquios Of The Salar De Llamara, Northern Chile, Erica P. Suosaari, Amanda M. Oehlert, Ioan Lascu, Alan W. Decho, Alan M. Piggot, Alvaro T. Palma, Paul F. Machabee, R. Pamela Reid

Faculty Publications

The Puquios of the Salar de Llamara in the Atacama Desert, northern Chile, is a system of small lakes that is characterized by evaporitic mineral deposition and that commonly hosts microbial communities. This region is known for its extreme aridity, solar irradiance, and temperature fluctuations. The Puquios are a highly diverse ecosystem with a variety of sedimentary bottom types. Our previous results identified electrical conductivity (EC) as a first-order environmental control on bottom types. In the present paper, we extend our analysis to examine the effects of additional environmental parameters on bottom types and to consider reasons for the importance …

Association Of Medicaid Expansion With Emergency Department Visits By Medical Urgency, Theodoros V. Giannouchos, Benjamin Ukert, Christina Andrews Ph.D.

Faculty Publications

Importance Relatively little is known about the association of the Medicaid eligibility expansion under the Patient Protection and Affordable Care Act with emergency department (ED) visits categorized by medical urgency.

Objective To estimate the association between state Medicaid expansions and ED visits by the urgency of presenting conditions.

Design, Setting, and Participants This cross-sectional study used the Healthcare Cost and Utilization Project State Emergency Department Databases from January 2011 to December 2017 for 2 states that expanded Medicaid in 2014 (New York and Massachusetts) and 2 states that did not (Florida and Georgia). Difference-in-differences regression models were used to estimate …