|
|
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.
The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.
Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
![Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio](https://biology-forums.com/gallery/47/medium_46687_12_12_14_7_07_22_195662020.jpeg)
![A vacuum-operated EGR valve. The vacuum to the EGR valve is computer controlled by the EGR valve ...](https://biology-forums.com/gallery/30/medium_548020_01_06_17_5_17_19_30116996.png)