.... of depression include low self-esteem, loss of energy, or lack of interest in activities previously experienced as pleasurable. Sleeping problems have also been associated with depression. A study shows roughly 80% of diseased individuals experience insomnia (depression.com 1). Possible problems may include: difficulty in falling asleep, waking up in the middle of the night with difficulty returning to sleep, waking up too early in the morning, brief periods of REM sleep, unusually long periods of stage 1 (light) sleep, or unusually brief periods of stage 3 and 4 ( deep, restorative) sleep (depression.com 1). Weight an ....

.... century it was recognized that men who worked in pitchblende( a chemical containing iron ore) mines were subject to fatal pulmonary diseases. An early study of the Schneeberg mines of Germany conducted between 1869 and 1877 found that 650 miners working in the mines had a life expectancy of 20 years after entering the mines. It was two german doctors, Harting and Hesse, who brought this to the public. The doctors found that 75 percent of the miner deaths were due to lung cancer. But with their scientific knowledge the doctors could only assume that the deaths were caused by the inhalation of arsenic. Later studies between 1900 and 1940 found that the deaths were caused by r ....

.... in the earth's crust when rocks in which elastic strain has been building up suddenly rupture, and then rebound."(Associated Press 1993) The vibrations can range from barely noticeable to catastrophically destructive. Six kinds of shock waves are generated in the process. Two are classified as body waves—that is, they travel through the earth's interior—and the other four are surface waves. The waves are further differentiated by the kinds of motions they impart to rock particles. Primary or compressional waves (P waves) send particles oscillating back and forth in the same direction as the waves are traveling, whereas secondary or transverse shear waves (S waves) imp ....

.... The farms usually consist of several metal barns, each containing several hundred to several thousand animals tightly confined. The floors in the barns are slatted so manure can be flushed away. The manure is pumped into open-air lagoons, which are large, shallow pits dug into the ground, where it is stored until it can be pumped out to irrigate fields. The solid manure sinks to the bottom of the lagoon and is broken down by anaerobic bacteria over several months. The liquid rises to the top and is collected and sprayed over nearby fields. Many problems come with the lagoons. North Carolina is one of the top hog producing states in the country. On June 21, 1995, No ....

.... is one of the alkaline earth metals. The atomic number of magnesium is 12. Magnesium(s) + Hydrochloric acid(aq) = Magnesium Chloride(aq) + Hydrogen(g) Mg + 2HCl = MgCl2 + H2 In the reaction when the magnesium hits the acid when dropped in, it fisses and then disappears giving of hydrogen as it fisses and it leaves behind a solution of hydrogen chloride. The activation energy of a particle is increased with heat. The particles which have to have the activation energy are those particles which are moving, in the case of magnesium and hydrochloric acid, it is the hydrochloric acid particles which have to have the activation energy because they are the ....

.... magic is able to deceive the minds of many, few understand its effect of misdirection of the human mind. The first accounts of magic were recorded around 1700 B.C. It appeared on the Westcon Papyrus and was recorded by an Egyptian chronicler. Stories of magic were handed down for centuries (Blackstone, 12). It has made a profitable living for soothsayer and gypsies, but there are times when magic was a form of entertainment. During the seventeenth century magic has become a living for some entertainers. Jugglers, wizards, and fortunetellers often appeared as scrub than a man of talent. These respected entertainers attracted lots of attention, not only because of t ....

.... How much more the earth can take remains a very heated issue. Here a look at the facts sheds some very dark light. In 1950, there were 2.5 billion people, while today there are 5.8 billion. There may well be 10 billion people on earth before the middle of the next century. Even more significant, on an ecological level, is the rise in per capita energy and material consumption which, in the last 40 years, has soared faster than the human population. “An irresistible economy seems to be on a collision course with an immovable ecosphere.” Based on these facts alone, there is grave reason for concern. Taken further, it is even more frightening to note that, while man ....

.... One type of aggression is dominance-related aggression. Dominance is mainly expressed in two ways: competition over resources and self protection (Dodman 23). Dominance-related aggression is usually directed toward those who reside with the dog which makes affected dogs difficult to live with (Horwitz 42). According to Dodman, traditional treatments of dominance-related aggression include an increase in exercise, brushing up on obedience training, and ceasing to engage in any rough play or wrestling (35) . More recently, however, drugs such as Prozac have been used as treatment. Dodman says that Prozac is,"...extremely effective at curtailing dominance-related aggression ....