.... a pipe, a joint, blunt. A joint is a rolled piece of paper that is twisted at the ends. A blunt is normally an emptied cigar wrapper filled with marijuana. In a blunt you can fit much more marijuana. Though a blunt isn't always purely marijuana, it can be mixed with other drugs such as angel dust. The results are varied when someone smokes marijuana. Different people will get different results, and certain types of cannabis can cause different effects. The amount of THC (marijuana's main active chemical) may also change the result. If alcohol or other drug use is occurring while smoking marijuana, the effect could .....

.... false security by modern antibiotics and vaccines about our ability to conquer infections, the Western world was ill prepared to cope with the advent of AIDS in 1981. (Retro- spective studies now put the first reported U.S. case of AIDS as far back as 1968.) The arrival of a new and lethal virus caught us off guard. Research suggests that the agent responsible for AIDS probably dates from the 1950s, with a chance infection of humans by a modified Simian virus found in African green monkeys. Whatever its origins, scientists surmise that the disease spread from Africa to the Caribbean and Europe, then to the U.S. Current estimate .....

.... and whites of eyes turn yellow. Ethnic or special groups affected with Sickle Cell Anemia are mostly blacks, and Hispanics of Caribbean ancestry. The disease also affects some people of Arabian, Greek, Maltese, Sicilian, Sardinian, Turkish, and Southern Asian ancestry. How transmitted type of gene or chromosomes that causes the disease. Sickle Cell Anemia is a sex linked gene. One way somebody could get this disease is if both parents are a carrier for Sickle Cell Anemia. There is one in four chance that a baby will have the disease. How the disease is diagnosed. Doctors are able to diagnose the Sickle Cell Anemia .....

.... What are the symptoms of Alzheimer's Disease? Alzheimer's Disease is a dementing illness which leads to loss of intellectual capacity. Symptoms usually occur in older adults (although people in their 40s and 5Os may also be affected) and include loss of language skills -- such as trouble finding words, problems with abstract thinking, poor or decreased judgment, disorientation in place and time, changes in mood or behavior and changes in personality. The overall result is a noticeable decline in personal activities or work performance. Who is affected by Alzheimer's Disease? Alzhei .....

.... third, new-emerging approach meant to solve the mystery of “ What is it that makes us who we are?” “Our genes made us. We animals exist for their preservation and are nothing more than their throwaway survival machines.” This is what Richard Darwin states in his book: The Selfish Gene. In his international best seller book, he argues that we are merely a product of our genes and our main purpose in life is to serve the genes, become distribution agents and ensure their proliferation. Before we take any stand to Darwin's statement, let us familiarize ourselves with what is meant when the term nature is used. Nature re .....

.... is collected into the portal vein and carried to the liver. Coronary circulation is the means by which the heart tissues themselves are supplied with nutrients and oxygen and are freed of wastes. Just beyond the semiluna valves, two coronary arteries branch from the aorta. Heart action consists of systole and relaxation of the muscular walls of the atria and ventricles. During the period of relaxation, the blood flows from the veins into the two atria. This action is sudden and occurs almost simultaneously in both atria. The mass of blood in the veins makes it impossible for any blood to flow backward. The ventricula .....

.... the end of the three days they will come back to my laboratory. They will then be put in an isolation booths. In one of the booths there will be a clock that doesn't have the right time on it. In another one there will be a window so that they can see where the sun is. In the third one there will be no windows and no clocks. All they would have is a light bulb in the ceiling. All the booths will have a bed and a bright red button on the far wall. The button will be for ringing. They will ring when they are tired, hungry, or need to use the facilities. My assistants and I will record when they become hungry and when they bec .....

.... according to W.W. Gibbs the author of "Seeking the Criminal Element," in Scientific American,(1995 March) pp 100-107, is that a very small number of criminals are responsible for the majority of the violent crime. Sullivan who is now the president of the Morehouse School of Medicine in Atlanta wanted to try and address the violence as a public health issue. In an interview after he left office in 1993, Dr. Sullivan explains that his rational for this was that the higher increases in violent crimes and specifically homicide in the young male population in large cities. Which was higher than any other social group in America at .....

.... in a victim of Huntington's disease the gene exists from anywhere between thirty-five to one-hundred or more. The gene for the disease is dominant, giving children of victims of Huntington's disease a 50% chance of obtaining the disease. Several other symptoms of the disease exist other than chorea. High levels of lactic acid have been detected in patients of Huntington's disease as a bi- product of the brain cells working too hard. Also, up to six times above the normal level of an important brain brain protein, bFGF (or basic fibroblast growth factor) in areas of the brain effected by the chorea. This occurs from the problems .....

.... the neurotransmitter dopamine. It appears to increase the levels of dopamine in the frontal lobe where attention and impulsive actions are regulated. When taken in its intended form under a doctor's prescritption, it has moderate stimulant properties. There has been a great deal of concern about it's addictive qualities and adverse affects. ADHD is a relatively new disorder. It was introduced in 1980, where it was labeled ADD(attention deficit disorder). In the 1950's, children were simply labeled "hyperkinetic." The term "hyperactivity" was added in 1987, hence the name ADHD. Not all children have the hyperactivity, and t .....