But the big VR players are still working out motion tracking. When you look down with a VR headset on the first thing you want to do is see your hands in a virtual space. For a while, we've seen the Leap Motion accessory - which uses an infrared sensor to track hand movements - strapped to the front of Oculus dev kits.
Urine specimens should not remain unrefrigerated for longer than two hours. Aurine specimen that cannot be delivered to a laboratory within two hours should be stored in a refrigerator. The reason for this precaution is that urinesamples undergo chemical changes at room temperature.
NOTE: Most laboratory pick-ups of blood samples are kept in a refrigerated state as they are being transported to their laboratory of destination. Once the serum sample reaches the laboratory, it must remain cool until it is processed in that cooled state. The sample cannot sit at room temperature while waiting for other serum samples to reach the laboratory so they can all be processed at one time in a batch. If the sample is stored in a cooled state, the rubber stopper should not be removed while storing the sample because without the stopper being left in place, even in a cooled place, evaporation can occur, causing invalid blood serum test results.