University of Minnesota

Group trends in posttraumatic stress disorder and suicidal ideation over the 10 years after traumatic brain injury among veterans/service members: A VA model systems study

Abstract Objective To identify group‐based patterns in suicidal ideation (SI) and posttraumatic stress disorder (PTSD) symptoms over the first 10 years after traumatic brain injury (TBI) among Veterans and Service Members (V/SMs). Setting V/SMs enrolled in the Department of Veter...

The Dynamics of Social Insurance in Egypt

ABSTRACT Social insurance coverage is low and declining in Egypt. This paper uses panel data, spanning 1998–2023, to assess the dynamics behind these trends in social insurance coverage. The results highlight not only the decline of social insurance coverage but an informality tr...

Risk Adjustment in the Medicare Advantage Population Using Encounter Data

OBJECTIVE: To estimate the Centers for Medicare and Medicaid Services (CMS) Hierarchical Condition Category (HCC) risk model using Medicare Advantage (MA) encounter data, as an initial step toward recalibrating risk-adjusted MA payments. DATA SOURCES AND STUDY SETTING: A 20% samp...

Multi-mode design for studying cyber aggression in texts, Facebook and Twitter messages among middle school youth

With the explosion of the internet, cyber aggression has become one of the fastest growing forms of interpersonal violence. Methods used to understand aggressive communications content have been limited primarily to surveys. Here, we present multiple methods - panel surveys, elec...

Moderators of the Effects of Telehealth Mindfulness-based Interventions for Chronic Pain

OBJECTIVES: Little is known about who benefits most from Mindfulness-Based Interventions (MBIs), and whether certain groups differentially benefit from different types of MBI formats (group-based versus non-group based). The present study uses data from a three-arm randomized con...

The Python simulations of chemistry framework: 10 years of an open-source quantum chemistry project

Over the past decade, the Python-based Simulations of Chemistry Framework (PySCF) has developed into a widely used open-source platform for electronic-structure theory and quantum chemical method development. This article reviews the major advances since the previous overview in...

A Secret-Shopper Study Evaluating Logistic Barriers to Care Among Young Adults with Acute Lymphoblastic Leukemia

Abstract Adolescents and young adults (AYAs) with acute lymphoblastic leukemia (ALL) experience inferior survival relative to children. As access barriers may increase outcome disparities, we conducted a secret-shopper study to identify logistical burdens when initiating care for...

Performance of the iBox Prognostication System in African American Kidney Transplant Recipients

Background: The iBox is a validated prognostication system that predicts long-term death-censored graft loss in kidney transplant recipients, but its performance in the specific population of African American recipients has not been fully studied. Methods: We conducted a multicen...

Bridge jobs and retirement identities: Gendered life course approach to workforce exits among Early Boomers

Abstract Objectives The prevalence of bridge jobs, post-career work that bridges between career jobs and workforce exit, has obfuscated the isomorphic link between older adults’ role identities as retirees, named ‘retirement identities’, and their actual labor force status in way...

Ancient DNA preservation in the Caribbean

Abstract Ancient DNA (aDNA) analysis has transformed how we study human migration, species dispersals and environmental change, but poor preservation remains a major challenge. This is especially true in tropical settings, where hot and humid conditions accelerate DNA decay. Beca...

Open-source implementation of the anti-Hermitian contracted Schrödinger equation for electronic ground and excited states

Efficient simulation of strongly correlated electrons has become a routine tool in molecular electronic structure theory due to recent advances in approximate configuration interaction (CI) techniques. Nonetheless, the quantitative and predictive description of molecular electron...

Fear, stigma and Uncertainty: The short and long-term effects of Ebola on survivors, affected families, and community in Bundibugyo, Western Uganda

Abstract In 2014, Uganda was identified as a high-risk country for Ebola Virus Disease (EVD), with a series of outbreaks recorded since 2000. In 2007, the second outbreak in Bundibugyo district resulted in 149 reported cases and 37 confirmed Ebola deaths. Through the outbreak res...

Evaluating the Implementation Fidelity of the REJOIN (Using Exercise to Relieve Joint Pain and Improve Aromatase Inhibitor Adherence in Older Breast Cancer Survivors) Pilot Trial

Implementation fidelity (IF), the extent to which interventions are delivered as intended, is essential for assessing program integrity and informing future dissemination/scalability. The REJOIN pilot trial adapted Fit & Strong! ( F&S! ) to deliver an education/exercise intervent...

Enhancing Evidence Generation by Linking Randomized Clinical Trials to Real‐World Data: The INVESTED‐Medicare Linkage Study

Real‐world evidence (RWE) derived from real‐world data (RWD) can complement randomized controlled trials (RCTs), yet the validity of RWD relative to RCT data remains insufficiently characterized. We obtained post hoc consent and linked individual participant data from the US‐base...

Automated Analog Layout Synthesis

Abstract In a world where analog design is becoming increasingly important, it is becoming increasingly important to provide solutions that can increase designer productivity by increasing the level of available automation. A particularly critical step is in generating the circui...

Assessment of small watershed stormwater sampling methods

ABSTRACT Measurements of contaminants in runoff are essential for stormwater management. Sampling accuracy is difficult to assess due to the cost and labor of field studies and the large variation in runoff behavior between sites, rain events, and pollutants. Stormwater sampling...

An alternative to Youden's index of diagnostic accuracy

Although Youden's index J has been a widely used summary measure of medical diagnostic accuracy, it suffers from a paradoxical property: the value of J can be very small even if the observed proportional accuracy (proportion of correct test results) is near perfect. The J paradox...

Estimating the effect of very low nicotine content cigarettes on abstinence by menthol status using novel statistical methods: A reanalysis of a randomized trial in an experimental marketplace with alternative nicotine systems

Abstract Introduction Very low nicotine content (VLNC) cigarettes have been proposed to reduce cigarette consumption. However, previous studies were not adequately powered to analyze the effects of VLNC cigarettes on abstinence, especially within subpopulations (e.g., people who...

Areostationary Satellite Station Keeping via a Natural Motion Trajectory and Predictive Control

Areostationary Mars orbit (AMO) satellites will play an important role in future expeditions to the Martian surface due to their strength as navigation and communication satellites. Perturbative forces experienced by an AMOR satellite will cause it to drift from its nominal orbit...

Factors Associated with Persistently Increased IL-6 Levels in People with HIV

BACKGROUND: Individuals with HIV remain at higher risk of non-communicable diseases associated with interleukin-6-specific (IL-6) inflammation compared to the background population. Despite antiretroviral therapy, some individuals exhibit persistent hyperinflammation. We characte...