Applied Mathematics (United States)

Toward the Development of Online Spiritual Care Communities: A Large-Scale Survey of Spiritual Care Stakeholders to Establish Initial Design Directions, Acceptability, and Feasibility

Spiritual care in the U.S. remains critically underprovided, despite increasing demand and a need for more whole person-centered care in healthcare. Telechaplaincy has emerged as one response, and recent CSCW work has begun to explore spiritual support online, yet there is limite...

Stochastic delay derivatives of Newcastle disease application in epidemic model: Stability analysis and approximation

The illicit trade in wildlife for pet purposes poses a direct risk to animal populations through overharvesting, but it also serves as an indirect conduit for the spread of contagious diseases. The present study assessed the effects of the hypothetical release of captured, infect...

Superpositions of CARMA processes

We introduce supCARMA processes, defined as superpositions of Lévy-driven CARMA processes with respect to a Lévy basis, as a natural extension of the superpositions of Ornstein-Uhlenbeck type processes. We then focus on supCAR(2) processes and show that they can be classified int...

On gravitational collapse and integrable singularities

Abstract Schwarzschild black holes are expected to emerge as the end states of the classical gravitational collapse from non-singular configurations. After integrable curvature singularities appear, the interior geometry can be modelled to exhibit a transition, called “Minkowski...

Selecting the number of components in PCA via random signflips

Principal component analysis (PCA) is a foundational tool in modern data analysis, and a crucial step in PCA is selecting the number of components to keep. However, classical selection methods (e.g., scree plots, parallel analysis, etc.) lack statistical guarantees in the increas...

Policies for the operation of an ambulance fleet under uncertainty based on a new preparedness metric

Two important decisions in the management of an ambulance fleet are ambulance selection decisions and ambulance reassignment decisions. Ambulance selection decisions determine what to do when an emergency call arrives (such as choosing what ambulance to dispatch to the emergency...

Pre-trained knowledge transfer with application in multisystem inflammatory syndrome subphenotyping in children

Multisystem inflammatory syndrome in children (MIS-C) is a severe post-acute sequela of SARS-CoV-2 infection in children and presents with highly heterogeneous signs and symptoms. Disentangling the clinical manifestations of MIS-C by characterizing its subphenotypes can help iden...