« previous next »
« previous next »
 

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Aquatic microclimates: aquatic environments generally show less temperature variation compared to te Aquatic microclimates: aquatic environments generally show less temperature variation compared to te
Lumbar puncture. Abbreviated LP, the lumbar puncture is a common procedure that withdraws cerebrospi Lumbar puncture. Abbreviated LP, the lumbar puncture is a common procedure that withdraws cerebrospi
Three bonds separate sequential α carbons in a polypeptide chain Three bonds separate sequential α carbons in a polypeptide chain
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
NCC MERP Index for categorizing medication errors. NCC MERP Index for categorizing medication errors.
A DOHC engine uses a camshaft for the intake valve and a separate camshaft for the exhaust valves in ... A DOHC engine uses a camshaft for the intake valve and a separate camshaft for the exhaust valves in ...
Video: Conjunctivitis

For a complete list of videos, visit our video library