Abstract: The techniques described herein relate to methods and apparatus for firearm safety mechanisms, visual safety indicators, and related techniques. A firearm includes a handle comprising one or more buttons disposed at least partially within a surface of the handle, such that the one or more buttons can be in contact with an operator's hand when the operator grasps the handle; a safety mechanism in mechanical communication with the trigger. The safety mechanism comprises: a first position that blocks actuation of the trigger; and a second position that does not block actuation of the trigger; and at least one processor configured to: upon determining an input code matches a stored code, transmits a signal to the safety mechanism to change the safety mechanism from the first position to the second position so that the firearm can be fired by the operator.

Abstract: The system includes a pump, a heat exchanger, a bladder, a thermometer, and a controller. The heat exchanger is in fluid communication with the pump. The bladder is configured to be placed over a carotid artery, and is in fluid communication with the heat exchanger. The thermometer is located with respect to the heat exchanger and configured to measure a temperature of fluid downstream from the heat exchanger. The controller is in electrical communication 28 with the thermometer and the heat exchanger. The controller is configured to 20 control power delivered to or flow through the heat exchanger such that the temperature of the fluid downstream from the heat exchanger measured by the thermometer is between 2 degrees C. and 10 degrees C. for between 10 minutes and 50 minutes.

Abstract: The system includes a pump, a heat exchanger, a bladder, a thermometer, and a controller. The heat exchanger is in fluid communication with the pump. The bladder is configured to be placed over a carotid artery, and is in fluid communication with the heat exchanger. The thermometer is located with respect to the heat exchanger and configured to measure a temperature of fluid downstream from the heat exchanger. The controller is in electrical communication 28 with the thermometer and the heat exchanger. The controller is configured to 20 control power delivered to or flow through the heat exchanger such that the temperature of the fluid downstream from the heat exchanger measured by the thermometer is between 2 degrees C. and 10 degrees C. for between 10 minutes and 50 minutes.

Abstract: A movable table assembly includes a base, a vertical support, and a table. The base includes a longitudinal frame member and at least one wheel. The vertical support connects with the base at either a first mounting location adjacent a first end of the longitudinal frame member or a second mounting location adjacent a second, opposite, end of the longitudinal frame member. The table connects with the vertical support and is vertically offset from the base. The table extends away from the vertical support toward the second end of the longitudinal frame member when the vertical support is connected with the base at the first mounting location. The table extends away from the vertical support toward the first end of the longitudinal frame member when the vertical support is connected with the base at the second mounting location.

Abstract: A movable table assembly includes a base, a vertical support, and a table. The base includes a longitudinal frame member and at least one wheel. The vertical support connects with the base at either a first mounting location adjacent a first end of the longitudinal frame member or a second mounting location adjacent a second, opposite, end of the longitudinal frame member. The table connects with the vertical support and is vertically offset from the base. The table extends away from the vertical support toward the second end of the longitudinal frame member when the vertical support is connected with the base at the first mounting location. The table extends away from the vertical support toward the first end of the longitudinal frame member when the vertical support is connected with the base at the second mounting location.