Eyes on the skin. In the teamâs first experiment, the scientists were looking to see whether UV light instigated a calcium signaling response. They found nothing. But guessing that the skin might sense light like the eyes do, they added retinal, a co-factor of opsin receptors including rhodopsin.
Economy shipping takes 1 to 10 business days within the United States and 11 to 20 business days for international. Exact time depends on how far the package must travel. Standard international shipping takes 5 to 10 days.
Political & Security Risks. 1  The average travel time for a container vessel from Asia to the U.S. is between two weeks and a month. 2  Documentation, customs clearance, handling, and inland shipping can add 17 to 33 days to the total shipping time from most emerging market regions, and another 6 days once goods reach the United States.