.... 6 people has had a “major” depressive episode in their life. It is estimated that it costs the nation a sum of 43 billion dollars a year in medication, lost school days, lost workdays, and professional care for depression. Tens of thousands of people out of the 15 million attempts to commit suicide because of depression and about 16,000 of those people succeed. Depression loosely defined is a disorder marked by a state of deep and pervasive sadness, dejection and hopelessness, accompanied by feeling of fatigue apathy, and low self-worth (Bourne and Russo 1998 p. A-24). Though that seems like a very comprehensive definition it is characterized by many different sym ....

.... has the greatest number of these storms, averaging 20 per year. Fortunately for those living in the coastal regions of the southern and eastern United States, fewer than five hurricanes, on the average, develop each year in the warm sector of the North Atlantic. Although hurricanes are most noted for their destruction, some parts of the world, especially eastern Asia, rely on them for much of their precipitation. Although numerous tropical storms develop each year, only a few reach hurricane status, which by international agreement requires wind speeds in excess of 119 kilometers per hour and a rotary circulation. Hurricanes average 600 kilometers in diameter, and ....

.... and higher. Heat energy, released as the water vapor in the air condenses. As it condenses it drives the upper drafts to heights of 50,000 to 60,000 feet. The cumuli become towering thunderheads. From outside the storm area, air moves in over the sea surface to replace the air soaring upwards in the thunderheads. The air begins swirling around the storm center, for the same reason that the air swirls around a tornado center. As this air swirls in over the sea surface, it soaks up more and more water vapour. At the storm center, this new supply of water vapor gets pulled into the thunderhead updrafts, releasing still more energy as the water vapor condenses. This m ....

.... must be some basic constituent part of matter, and if they were a part, then there must be a whole. The real, physical electron implied a real, physical atom: the particulate theory of matter was therefore justified for the first time convincingly by physical experiment. They sang success at the annual Cavendish dinner. Armed with the electron, and knowing from other experiment that what was left when electrons were stripped away from an atom was much more massive remainder that was positively charged, Thomson went on in the next decade to develop a model of the atom that came to be called the "plum pudding" model. The Thomson atom, "a number of negatively electrified co ....

.... are found entombed in the Scandinavian Baltic Amber samples which scientists date in upwards of 100 million years old (The Ant Colony Œ89). These primitive samples have evolved into the 5000 to 10000 species known today which vary amongst themselves as widely as the numbers suggest (Social Insects Œ68). These remarkably adaptive creatures are found in some form on all continents and all habitats but the extreme arctics. Their success is manifested in the claim that at any time there are at least 1 quadrillion living ants on earth(Groliers Œ93). All species of ants are social. They live in organized communities or colonies, which may contain anywhere from a f ....

.... Engineering 1. Evaluates several variables 2. Predicts massive chaotic systems 3. Finds order to random phenomena D. Knowledge-based systems (KBS) 1. Maintains large knowledge base 2. Facts programmed into rules 3. Only as good as the information E. Expert Systems 1. Database of information 2. Limited to structured rules 3. Use symbolic representations F. Case-bases reasoning (CBR) 1. Allows a system to store and analyze data 2. Analyzes each case uniquely III. How AI can be used A. Neural Networks 1. Military aircraft 2. S&P index 3. Recognizing new patterns of credit-card fraud B. Fuzzy logic 1. Wa ....

.... can help to revive them. Louise Miller once said that,". . . the ecologist is the one that brings together the study of all natural systems- earth, air, water, plants, and animals. Connections between living organisms and effects of their interactions are ecologists' concerns. . . . .The balance of nature, wherever it occurs, is what you will investigate and analyze"(17). Since a career as an ecologist is usually long term, there are certain characteristics a person should have in order to maintain a successful career. One of these characteristics that is the most important is patience. Patience is important because as an ecologist a person will have to at some poin ....

.... boron, manganese, copper, zinc, molybdenum and chlorine. In some cases, these nutrients are found to be missing in soils, but it is extremely uncommon. As plants need to retrieve all of their nutrients from the soil, many methods have been developed in order to find ways to improve or change the soil to suit the plant's needs. Soil, in science as well as in common gardening, must undergo detailed inspection, to detect such things as the pH of the soil. A soil with a pH above 7.0 is called an alkaline soil, and will commonly kill plants. Mineral content, as mentioned above, is also a concern, and must be clearly monitored. After inspection, it is common for minor orga ....