« previous next »
« previous next »
 

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

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

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Metric bolt (cap screw) grade markings and approximate tensile strength. Metric bolt (cap screw) grade markings and approximate tensile strength.
Overview of the biosynthesis of aromatic amino acids Overview of the biosynthesis of aromatic amino acids
Food Sources of the Essential Fatty Acids Many oils and nuts Food Sources of the Essential Fatty Acids Many oils and nuts
Testing muscle strength - Temporalis muscles Testing muscle strength - Temporalis muscles
Hardness: Mohs Scale (1 of 2) Hardness: Mohs Scale (1 of 2)
The Scale of the Very Small and Very Large: Powers of 10 The Scale of the Very Small and Very Large: Powers of 10
Video: Coronary Heart Disease

For a complete list of videos, visit our video library