« previous next »
« previous next »
 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

A method to measure the lateral movement of membrane proteins. A method to measure the lateral movement of membrane proteins.
A Simple Model of the Learning Process A Simple Model of the Learning Process
Xenophon (430–357 B.C.E.) Biographer of Socrates and his student as a youth. In addition to four ... Xenophon (430–357 B.C.E.) Biographer of Socrates and his student as a youth. In addition to four ...
Pablo Picasso, Medical Student, Sailor, and Five Nudes in a Bordello (Compositional study for Les ... Pablo Picasso, Medical Student, Sailor, and Five Nudes in a Bordello (Compositional study for Les ...
Common Laboratory Tests and Their Normal Values Common Laboratory Tests and Their Normal Values
On average, students in Roman Catholic schools score higher on national tests than students in ... On average, students in Roman Catholic schools score higher on national tests than students in ...
Video: Causes of Angina

For a complete list of videos, visit our video library