Fully Spray-Coated Triple-Cation Perovskite Solar Cells.

We use ultrasonic spray-coating to sequentially deposit thin films of tin oxide, a triple-cation perovskite and spiro-OMeTAD, allowing us fabricate perovskite solar cells (PSCs) with a champion reverse scan power conversion efficiency (PCE) of 19.4% on small-area substrates. We show that the use of spray-deposition permits us to rapidly (>80 mm s) coat 25 mm × 75 mm substrates that were divided into a series of devices each with an active area of 15.

Femoroacetabular Impingement in Pediatric Patients.

Subacute, nontraumatic hip pain is often a diagnostic challenge. Femoroacetabular impingement (FAI) is a common cause of atraumatic hip pain that is poorly understood. FAI is a result of abnormal morphologic changes in either the femoral head or the acetabulum.

Spectator injuries in sports.

Introduction: Injury documentation and prevention has largely focused on the athletes participating in the sporting event. However, spectators are at risk for injury as well depending on the sport and venue. No study to date has recorded and analyzed spectator injuries in sports.

The effects of resistance training, overtraining, and early specialization on youth athlete injury and development.

Introduction: In 2014, 60 million youth ages 6-18 participated in some form of generalized athletics. Around 3.5 million children are injured annually participating in organized sport or recreational activities.

Return to Play and Decreased Performance After Anterior Cruciate Ligament Reconstruction in National Football League Defensive Players.

Background: Anterior cruciate ligament (ACL) injuries occur commonly in football. Recent work has reported ACL reconstruction (ACLR) as one of several orthopaedic procedures with unfavorable outcomes for professional athletes. The performance impact to defensive players after surgery has not been quantified.

Competitive bass anglers: a new concern in sports medicine.

Objective: Competitive bass angling involves sport fishing against other anglers while targeting a species of fish known as the black basses. Due to the rapidly growing popularity of high school competitive bass angling in Alabama and the nature of the casting motion similar to that of overhead athletes, we sought to examine the prevalence of sports type injuries in this population.

Methods: In spring 2016, an anonymous survey was distributed across two large scale competitive high school fishing tournaments, allowing for a broad sampling of anglers throughout the state of Alabama.

Outcomes after arthroscopic fixation of tibial eminence fractures with bioabsorbable nails in skeletally immature patients.

The aim of this paper is to report the outcomes and any complications with arthroscopic bioabsorbable nail fixation of tibial eminence fractures in skeletally immature patients. We retrospectively reviewed all surgically treated tibial eminence fractures treated by a single surgeon and seven patients were identified with a minimum 2-year follow-up. Mean deficits of flexion and extension were minimal.

When celebrations go wrong: a case series of injuries after celebrating in sports.

Background: Athletes often engage in various celebration maneuvers during sports events. These celebrations can result in acute injuries. Our objective was to document publicized injuries in collegiate and professional athletes resulting from celebrations and examine associated variables.