Did you know?
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
Changes in light quality with depth: (a) the rich colours on a shallow coral reef;
Retrograde pyelography (RP). Note the contrasting of the renal calyces, ureters, and bladder followi
Ochem molecule contrast chart
Pelli-Robson contrast sensitivity chart.
Contrast of ventilation and external and internal respiration.
Quality of U.S. and Japanese-made Automobiles