... can lead to violent behavior. Contrary to the stereotype of rural areas as idyllic, protected environments in which to raise families, substance abuse is as great a problem as it is in the cities. One must realize that rural communities vary in characteristics considerably, which complicates our understanding of rural substance use problems and increases the need for prevention, intervention, and treatment programs. For too long, the problems of alcohol and drug abuse in rural areas have received little attention from the federal level. As national studies show, those who live in rural areas are just as likely to have alcohol and other drug problems as tho ...
... and is the first example of a true global village. Unfortunately for regular users of the Internet, much like the real world, criminals exist on the Internet as well. "Hackers," the computer wizards who use their knowledge for evil, are rampant on the Internet. Sometimes they do seemingly harmless acts, such as just going into a computer system and observing, but at other times, they steal, destroy or alter data. On some occasions, these cyber-felons perform even more malicious acts, such as infecting systems with "viruses," computer programs that "infect" the systems by latching onto other programs and eventually destroying them. Another favorite activity of the ...
... started to be implemented throughout the world and already a big change is being noticed. Companies are keeping track of all of their important information on web sites, which are restricted to users, unless they have the security code to access them. Thanks to Internet technology, companies and other types of organizations are able to keep all of their information organized and easily accessible with a click of a button. The Internet, how has it changed the world around us? Government, education, business is all wrapping around it. Is this because of all of the information on it, simplicity or is it the quickness, with a simple point and click and ...
... system of agriculture. This system utilized one large field divided in half, one half of a field with crops and left the other half of a field was left unplanted for a year so as not to exhaust the soil. This system led to problems, because dividing the land in half led to shortages in the production of food because only half of the field was being used. This system of agriculture needed some minor adjustments to increase the production of food without destroying the soil in the process. This new system came about around the year 800. Farmers began to use a new system, the three-field system, to farm their crops. The three field system used one large field lik ...
... to be important about 20 years ago when scientists in Sweden and Norway first believed that acidic rain may be causing great ecological damage to the planet. The problem was that by the time that the scientist found the problem it was already very large. Detecting an acid lake is often quite difficult. A lake does not become acid over night. It happens over a period of many years, some times decades. The changes are usually to gradual for them to be noticed early. At the beginning of the 20th century most rivers/lakes like the river Tovdal in Norway had not yet begun to die. However by 1926 local inspectors were noticing that many of the lakes were beginning ...
... and his wife. Of his illness, Hawking has said that it has enhanced his career by giving him the freedom to think about physics and the Universe. Stephen Hawking has written many essays involving the unified theory, which is a theory summarizing the entire of the physical world; a theory that would stand as a complete, consistent theory of the physical interactions that would describe all possible observations. Our attempts at modeling physical reality normally consists of two parts: a) A set of local laws that are obeyed by the various physical quantities, formulated in terms of differential equations, and b) Sets of boundary conditions that tell us the stat ...
... zero volume, where it is said to have infinite density. This is referred to as a singularity. When this happens, escape would require a velocity greater than the speed of light. No object can reach the speed of light. The distance from the black hole at which the escape velocity is just equal to the speed of light is called the event horizon. Anything, including light, that passes across the event horizon toward the black hole is forever trapped. Using a small black marble as an example to represent the size that the Earth would become if it collapsed and became a black hole, Todd R. Lauer, of the National Optical Astronomy Observatories said, " Black holes are ...
... should not exempt this supernatural phenomenon from their studies. The "Big Bang Theory" states that fifteen billion years ago, give or take five billion years, the entirety of our universe was compressed into the confines of an atomic nucleus. Known as a singularity, this is the moment before creation when space and time did not exist. According to the prevailing cosmological models that explain our universe, an ineffable explosion, trillions of degrees in temperature on any measurement scale, that was infinitely dense, created not only fundamental subatomic particles and thus matter and energy but space and time itself. Cosmology theorists combined with the o ...
... of fuel every year. When these fuels burn they introduce smoke and other, less visible, by-products into the atmosphere. Although wind and rain occasionally wash away the smoke given off by power plants and cars, the cumulative effect of air pollution poses a grave threat to humans and the environment. In many places smoke from factories and cars combines with naturally occurring fog to form smog. Smog has been long recognized as a potential cause of death, especially for elderly persons and those with severe respiratory ailments (like asthma). Air pollution originally resulted from large-scale use of heating fuels (like coal and wood). Water Pollution S ...
... the past and future. Many people go through guilt, crying, or having suicidal thoughts. Unlike a manic episode, the person has lack of energy, and either an appetite loss or gain. Manic depression is a recurrent illness, so a person usually has more than one episode. These episodes can last from weeks to months. They occur whenever and have no certain pattern. Sometimes a stressful life event can trigger an episode, and sometimes they just happen. If a person has more than four episodes a year they are known as “rapid cyclers”. This is more common in women. There is no exact reason for what causes manic depression, but some doctors say that it may be f ...
