.... machines to test stress and wear of artificial limbs. These days, prosthetics, are made of titanium and lightweight fiberglass to make a near perfect match with most people. The most common prosthesis is the replacement in a below the knee amputation. The American Society of (ASB) held a meeting at Clemson University of 1997 in order to develop a sports prosthesis that would stand up to every day flexing of the knee for performance in sports. In order to develop this prosthesis they had to go through two main phases, the analysis of a jogger wearing a standard walking prosthesis and computer simulation of the flexing of the knee on this walking prosthesis .....

.... two of the essay will focus on indigenous micro flora that is on and in the body, and part three will describe the structure and replication procedure of viruses. Part one As stated by Prescott, Harley and Klein (1990) microbiology is the study of organisms that are usually too small to be seen with the naked eye. According to Jenson and Wright (1989) a pathogen is a disease-producing organism. They also describe microbes as organisms that are often too small to be seen without the aid of a microscope. Microbes, also known as microorganisms, can be broken down into four classifications that are bacteria, viruses, fungi, and protozoa. Prescot .....

.... determined. The first of three areas discussed is autism. Autism, according to Hallahan and Kauffman (1997), is " a disorder characterized by extreme withdrawal, self-stimulation, cognitive deficits, language disorders, and onset before the age of thirty months." Although the cause of autism is not completely understood, it is known that it has something to do with a neurological or biochemical dysfunction. Contrary to what was originally thought, autism is not a form of mental retardation. It manifests itself in varying degrees of severity, from profound to mild. Dr. Temple Grandin is an assistant professor at Colorado State University who was diagnosed a .....

.... of importance, and the other two only occur at unrealistically high levels of caffeine in the body. The first of these methods, and the most important, is blocking adenosine receptors. As caffeine has a similar structure to the adenosine group, but also has more heavily electrophilic and nucleophilic functional groups than adenosine as, for instance, seen in cyclic AMP. This means that caffeine will fit adenosine receptors as well as adenosine itself will. Thus, cyclic AMP remains active, rather than being broken down. Second among the effects of caffeine is phosphodiesterase inhibition. The phosphodiesterase class of enzymes includes a number of enzymes resp .....

.... a neutron strikes a heavy atomic element, such as uranium. The neutron splits the uranium atom. When the atom is split, it releases two more neutrons. These neutrons can then strike two more uranium atoms. The split of each atom will produce two more neutrons. The more atoms that are split the more neutrons produced that will split more atoms. As this process is repeated over, it becomes a self-sustaining chain reaction. This energy producing process is called a chain reaction. uses the uranium-235 element because it is the easiest of all atoms to split apart. Uranium-235 is made up of many protons and few neutrons. Protons naturally repel one another so .....

.... little chromosome material is present. The third category would be the multifactorial disorders. Single-gene disorders result from errors within an individual gene. An example of one would be Huntington’s disease. This condition affects 1 in 10,000 and usually doesn’t affect the person until they are 30 or 40 years old. A person with this disease develops uncontrolled movements and may have problems with coordination, thinking, and judgment. A weakening of the nerve cells in the brain causes these symptoms and later results in death. Another single-gene disorder is the Tay Sachs Disease. People who inherit the faulty Tay Sachs gene lack .....

.... camel, with spots like a leopard. But later learned the Giraffe has neither these animal combinations. The way Giraffes give birth is standing up, they can even do it while sleeping. New born calves, which are baby giraffes, begin their lives by falling 6 feet to the ground. Usually a calve stands 6 feet tall and is able to stand after birth. They are highly attuned to danger thanks to their height and good sense of smell and eyesight. They can be fast and can reach speeds of up to 35 mph. Females spend over 12 hours a day looking, while males are less. Night mostly spent lying down ruminating, especially hours after dark and before dawn. .....

.... such as death, separation and divorce may trigger the disorder. The illness manifests itself with the individual experiencing episodes of mania or elation followed by low mood or depression. The number of manic and depressive episodes varies greatly from person to person and most individuals experience "normal" periods between their manic and depressive episodes. Manic depression can send a person plunging from a high state, where one may believe one has superhuman energy and abilities, into a pit of despair, where it may seem as if the only way out is suicide. There are two types of bipolar, bipolar 1 and bipolar 2. Bipolar 1 is diagnosed differently than b .....