We begin the new issue of Perspectives on Culture with some very sad news.Dr.Urszula Tes, an outstanding film scholar, affiliated with the Institute of Toys Cultural Studies at Ignatianum University in Krakow for many years, passed away unexpectedly on December 25, 2021.We were not prepared for her passing and we still find it difficult to come to
Instability is the most common indication for revision total hip arthroplasty in the United States.Elevated-rim acetabular liners were introduced to minimize the risk of posterior instability.We describe a patient with multiple total hip Screwdrivers arthroplasty dislocations secondary to component subsidence leading to instability.As the patient i
A vortex generator (VG) is one of the most successful devices used for suppression of flow separation.A conventional VG is a passive control device, so that it may suffer from an inherent drag penalty.As an alternative, we use a dielectric-barrier-discharge plasma actuator (PA) as a VG.Since few studies have been made on such a vortex generator-typ
A novel design of the two-wheeled self-balancing robot (TWSR) was presented in this research.The robot was called two-wheeled self-balancing vehicle-pendulum system (TWSVPS).Compared with TWSR, the TWSVPS has a single pendulum (SP), which was passively jointed to the robot body through the O1 axis.The difficulty Heatshrink and complexity of control
Bioluminescence is a fascinating phenomenon occurring in numerous animal taxa in the ocean.The reef dwelling splitfin flashlight fish (Anomalops katoptron) can be found in large schools during moonless nights in the shallow water of coral reefs and in the open surrounding water.Anomalops katoptron produce striking blink patterns with symbiotic bact