.... system, along with the pleasure centers of the brain, are affected resulting in a feeling of euphoria and a sense of well being. After repeated exposure, the brain becomes dependent on this drug to unburden itself whenever it feels the compulsion. Several factors that contribute to alcoholism are the individual’s psychology, genetics, culture, and the individual’s response to physical pain. In order to understand alcoholism, we must first define what scientists classify alcoholism to be. Moderate drinkers drink equal to at least two drinks a day. An at-risk person for alcoh .....

.... 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. They had to measure rotation, weight bearing, moments, and the stress of the joints acting on this limb. After the mechanical actions were mapped out they had to use many mathematical equations to spring force and spring stiffness. All of this was accomplished and the conclusion was that by varying the placem .....

.... intestinal wall. Crohn's disease can also affect the also affect the colon, the regional lymph nodes, and the mesentery (outside covering of the intestines). The disease can be aggravated by a bacterial infection. It begins with the development of patches of inflammation on the intestinal wall, which can spread from one part of the digestive tract to another. It sometimes only develops in one place and does not spread any further. The inflammation causes the thickening of the intestinal wall, which sometimes causes an obstruction in these areas, or scar tissue, which narrow .....

.... the edge of sandy dunes in the full force of sea gales, and bent and twisted at the edge of the snow line in the Alps. They are also found in other parts of the world from Ethiopia to Ecuador, from California to Israel. Where eucalypts grow is determined by many environmental factors such as soil type, amount of water, wind direction, the direction the tree is facing and whether there is frost. THE IMPORTANCE OF THE EUCALYPT Eucalypt oil is used for cough and colds. The oil is either rubbed on the chest or sniffed up in steam. It is also used in cleansers where strong smel .....

.... leave. families may co-operate to catch large animals. es chase their prey. They wear them out in a long chase because they arenÕt very fast runners. Large animals are chased until the es can catch them or until the weaker ones drop back. es donÕt always get their prey, however kangaroos can lean back on their tails and kick hard enough to rip open a Õs stomach. The gestation period of the is about 63 days, and the litters average about 5 to 8 pups. After 2 weeks, the mother will throw up food for the pups to eat. After 3 weeks, both parents will bring food to the .....

.... and a 2nd generation quarry planned? The decision of whether or not to go ahead cannot be delayed indefinitely as Norway and Spain are looking at developing their own. If it is to go ahead then an early start will give Harris a stronger position in the market. 2 INTRODUCTION This report examines the controversy and key issues surrounding the superquarry at Rodel, Lingerbay on the southern coast of the Isle of Harris (Figure 1) and attempts to find an acceptable solution. The quarry will hollow out the heart of the mountain but leave enough of a shell to leave the .....

.... believe they can improve the foods we eat by doing this. For example, tomatoes are sensitive to frost. This shortens their growing season. Fish, on the other hand, survive in very cold water. Scientists identified a particular gene which enables a flounder to resist cold and used the technology of genetic engineering to insert this 'anti-freeze' gene into a tomato. This makes it possible to extend the growing season of the tomato. The marketing of genetic engineering inspires visions of perfect health, long life, and miracle foods. The reality is that these claims are o .....

.... in paint and in glassmaking. Barite is extensively used as a weighing agent in oilwell drilling fluids. The carbonate has been used as a rat poison, while nitrate and chlorate give colors in pyrotechny. The impure sulfide of radiantly glows after exposure to the light. metal has few practical applications, although it is sometimes used in coating electrical conductors in electronic apparatus and in automobile ignition systems. sulfate (BaSO4) is used as a filler for rubber products, in paint, and in linoleum. nitrate is used in fireworks. A form of sulfate, which is .....