Search Essays

…of a cathode-ray tube (CRT). Two display methods are typically used: raster-scan CRTs and vector CRTs. In the more common raster-scan CRT, an electron beam sweeps the screen horizontally many times per second, creating an image that consists of a two-dimensional…

…of a molecule is seen by an X-ray crystallography. Once the structure of the molecule is seen, the data is put into a computer and the image of the molecule appears on screen. The image can be turned around to view at all possible angles. The purpose is to design…

…Considers Creatine a Food. 16(2), 9-10. Rose, Verna L. (1998). Creatine Supplementation. American Family Physician, 58(7), 1691. Sahelian, Ray. (2000). Creatine - Just the FAQ's Ma'am. Better Nutrition, 62(5), 26-27. Suggs, Welch. (1998). Creatine pays off…

…guzzling sport utility vehicles and have no respect for fuel efficiency in general. However, State Senator of California, Ray Hayes believes that the problem lies completely at the government level. While crude oil prices have risen considerably the past few…

…not, affects only a few joints. It may also occur in a single joint, which has been injured or has a structural defect. Nearly 90 percent of all Canadians over the age of 60 will have enough osteoarthritis to show in an x-ray, although the disease may…

…-a-day smoker of tobacco is exposed to 8000 mrem of radiation a year, equal to the dose of 300 chest x-rays. A more recent study indicates that a pack-and-a-half-a-day smoker receives 16000 mrem of radiation more than a non-smoker, annually. It could also…

…, or a mammography. A mammogram is simply an X-ray of the breast. Mammography can pick up small legions of under one half a centimeter, whereas one can not feel a lump until it is a full centimeter in diameter. But, if breasts are small or dense, a mammogram might…

…with neurofibromatosis, and are actually abnormally thick. The extreme overgrowth of bone in Merrick's skull and the right side of his body is consistent with Proteus Syndrome. Sharma based her conclusions on a series of x-rays and CAT scans produced at the Royal London…

…examination, necessary lab tests, and x-rays. Attacks of bronchial asthma will occur more frequently if not treated properly. Wheezy bronchitis or bronchial asthma occurs when the bronchial tubes overreact. An episode begins when a person’s airways are irritated…

…over Antarctica. First, let’s take a crash course on what ozone is. It is a molecule that is made up of three oxygen atoms bonded together, O3. Ozone is found in the upper layers of the atmosphere and blocks out a majority of the sun’s ultraviolet rays…