We describe an experiment to form and characterize a section of a spherically imploding plasma liner by merging six supersonic plasma jets launched by newly designed contouredgap coaxial plasma guns. This experiment is a prelude to forming a fully spherical imploding plasma liner using many dozens of plasma guns, as a standoff driver for plasma-jet-driven magnetoinertial fusion. The objectives ...

The absence of guns from children’s homes and communities is the most reliable and effective measure to prevent firearm-related injuries in children and adolescents. Adolescent suicide risk is strongly associated with firearm availability. Safe gun storage (guns unloaded and locked, ammunition locked separately) reduces children’s risk of injury. Physician counseling of parents about firearm sa...

BACKGROUND Since 1991, the incidence of injuries associated with pneumatic and explosive powered nail guns has steadily been rising due to increasing use of these devices by the untrained consumer. The vast majority of injuries involve the extremities, but injuries have been reported to occur in virtually every area of the body. OBJECTIVE Discuss the epidemiology, pathophysiology, and managem...

We investigate the impact of an information shock – the public exposure of the names and addresses of holders of handgun carry permits – on criminals’ propensity to commit crimes. In December 2008, a Memphis, TN newspaper published a searchable online database of names, zip codes, and ages of Tennessee handgun carry permit holders. Once news of the database publication spread, an intense and ac...

PURPOSE To report ocular injuries caused by airsoft guns in children. METHODS A retrospective chart review of pediatric patients who sustained ocular injuries related to airsoft guns between November 2005 and December 2007. Place of trauma, presenting symptoms and signs, surgical interventions performed, and final visual outcome were reviewed. RESULTS Thirty-two patients with a mean age of ...

Objective—To determine the association between licensing and registration of firearm sales and an indicator of gun availability to criminals. Methods—Tracing data on all crime guns recovered in 25 cities in the United States were used to estimate the relationship between state gun law categories and the proportion of crime guns first sold by in-state gun dealers. Results—In cities located in st...

CONTEXT Household firearms are associated with an elevated risk of firearm death to occupants in the home. Many organizations and health authorities advocate locking firearms and ammunition to prevent access to guns by children and adolescents. The association of these firearm storage practices with the reduction of firearm injury risk is unclear. OBJECTIVE To measure the association of speci...

We investigate the relationships between gun ownership and murders, reported rapes, and robberies. We proxy gun ownership by the number of subscriptions to the gun magazine Handguns Magazine and accommodate the count nature of our data by analyzing them with a multivariate Poisson-lognormal model. For most of our analyses, we find that the correlation between today’s number of guns and future c...