Analyzing the impact of concealed carry weapons and school resource officers on school shootings: An agent-based modeling approach.

This paper presents a simulation modeling study that examines the potential benefit of arming public school staff members with concealed carry weapons (CCWs) in combination with school resource officers (SROs) during active shooter events. By simulating real or hypothetical situations and altering various parameters, simulation modeling allows researchers to explore the potential factors that may influence the outcome of such situations. This study will analyze literature on active shootings to identify key characteristics that may impact the outcome of an event and will use an actual school active shooter event as a basis for developing a simulation model.

Agent-based modeling for theme park evacuation.

Each year theme parks can see up to 20 million patrons, but often little effort is put into planning for an emergency evacuation. In this study, we built a multiagent simulation model using AnyLogic® 8.5.

Active shooter mitigation strategies in small rural churches.

Gun violence in places of worship (POW) has long been an issue and has been addressed repeatedly in the literature. Contextually, most of the research has been pertinent to relatively large POW, situated in an urban setting. However, rural churches have not been addressed, and they appear to have a far less defensive posture, mainly because of their remote location and the extended time required for first responders to arrive, which in turn requires a higher level of independent operation in terms of defense and medical response.

Benefits of cerebral protection during carotid stenting with the PercuSurge GuardWire system: midterm results.

Purpose: To examine the possible beneficial effect of a new cerebral protection device based on balloon occlusion of the distal internal carotid artery (ICA) and debris aspiration for patients undergoing carotid artery stenting (CAS).

Methods: One hundred and eighty-four CAS procedures were attempted under cerebral protection using the PercuSurge GuardWire system in 167 patients (129 men; mean age 70.5 +/- 9.

Detection and prediction of acute heart transplant rejection with the myocardial T2 determination provided by a black-blood magnetic resonance imaging sequence.

Objectives: This study aimed to determine whether the myocardial T2 relaxation time, determined using a black-blood magnetic resonance imaging (MRI) sequence, could predict acute heart transplant rejection.

Background: The use of black-blood MRI sequences allows suppression of the confusing influence of blood signal when myocardial T2 is calculated to detect myocardial edema.

Methods: A total of 123 investigations, including cardiac MRI and myocardial biopsy, were performed 8 +/- 11 months after heart transplantation.