Systems Analytics (United States)

Uncovering Disparities in Rideshare Drivers’ Earning and Work Patterns: A Case Study of Chicago

Ride-sharing services are reshaping urban mobility but raising concerns around fairness, safety, and driver working conditions. This mixed-methods study combines large-scale analysis of Chicago’s Trip Network Provider data (2018–2023) with qualitative interviews and reconstructed...

Five-country analysis of geographic and dietary drivers of gut microbiome composition and genomic variation

Abstract Human diet and lifestyle vary widely across cultures, shaping global diversity in gut microbiome composition and function. However, comparable cross-population studies have been limited by methodological heterogeneity. The Human Diets and Microbiome Initiative (THDMI) in...

Lease a battery electric vehicle now or later? An empirical analysis

While the battery electric vehicle (BEV) market faces uncertainty in the United States, especially regarding adoption timing, leasing has become a popular alternative to purchasing, accounting for approximately 60% of new BEVs in 2025. However, the literature rarely distinguishes...

Enhancing advertising novelty through celebrity cameo endorsement

Celebrity endorsement is a widely used tool in strategic marketing, yet questions remain about how to enhance its novelty and ad effectiveness. We introduce and test a novel executional tactic: celebrity cameo endorsement: a brief appearance by a new known figure alongside an exi...

Reconciliation of titer differences between SARS-CoV-2 neutralizing antibody assays

ABSTRACT SARS-CoV-2 antibody neutralization is a correlate of protection for COVID-19 and has been used to guide public health decisions. However, there is no standard neutralization assay, and absolute titers differ between assays. To investigate mechanisms causing these absolut...

Using Rehabilitation Therapies to Reduce Antipsychotic Use and ED Visits in Individuals With Dementia

Alzheimer's disease and related dementias represent a significant and growing health care burden in the United States. This article describes the implementation of a rehabilitation-driven, interdisciplinary care model and its impact on antipsychotic medication use and emergency d...