.... in sleep and appetite, psycomoter retardation, loss of energy, feelings of worthlessness, guilt, difficulty thinking, indecision, and recurrent thoughts of death and suicide (Hollandsworth, Jr. 1990 ). The manic episodes are characterized by elevated or irritable mood, increased energy, decreased need for sleep, poor judgment and insight, and often reckless or irresponsible behavior (Hollandsworth, Jr. 1990 ). Bipolar affective disorder affects approximately one percent of the population (approximately three million people) in the United States. It is presented by both males and fe .....

.... expansion, which is a "thermodynamic process in which the temperature of a gas is expanded without adding or extracting heat from the gas or the surrounding system"(Vance 26). At the same time Pictet used the "Joule-Thompson Effect," a thermodynamic process that states that the "temperature of a fluid is reduced in a process involving expansion below a certain temperature and pressure"(McClintock 4). After Cailletet and Pictet, a third method, known as cascading, was developed by Karol S. Olszewski and Zygmut von Wroblewski in Poland. At this point in history Oxygen was now able to be liquef .....

.... today simplify this into an equation of 40% carbohydrates, 30% fats, and 30% protein that the entire day’s meals should be divided into. The total calorie intake must increase for active persons from 2200 to 2200 plus the total number used while exercising. This will ensure replenishment of the body’s system. With the wide variety of athletic competitions, the specific meal a competitor may need to eat to benefit themselves differs widely, as do the events. The last meal or two are extremely important in both their time of consumption and content. It is these two factors that .....

.... are: Ø For agricultural purposes eg space for building. (overpopulation) Trees are logged for the purpose of space. In this day and age the human race is multiplying and therefore we require more space to expand cites and build more houses. To do this world government cut down any forests in their way. Ø Industrial commercial purposes Big industries also contribute to deforestation. EG "Macdonald's uses 800 square miles of trees just for the paper packaging of their products". That is an appalling amount of trees that are used just for burger wrappers. A conservation group has foun .....

.... types. Those on the left are base-forming; those on the right are acid-forming. Those in between can be either. They have so-called amphoteric oxides and hydroxides that can act like acids or bases. 's arrangement also divides the elements into metallic and nonmetallic kinds. A distinction is usually made between most pure metals and nonmetals according to physical and chemical properties. Another virtue of is that it is universal. No matter where it is used any scientist can understand it.It is an universal language in which makes it much easier for different scientists to understa .....

.... other rifles because of its versatility and accuracy. The expansion is also good, depending on the type of shell tired-used. The kick and distance of the gun are considered to be wonderful because the kick is normal and the distance is better than normal. The .270 rifle is a reasonably good rifle. This rifle is mainly used in open field shooting as opposed to in brush shooting. The depth and the expansion work together and turn out to be great, especially if soft pointed shells are used. The kick and the distance from the .270 rifle work relatively well as a whole. The .270 is c .....

.... it is only mild. Most of the needles now used in acupuncture are disposable needles. Acupuncture does not always only involve needles. They may also use other methods such as moxibustion, cupping, electronic stimulation, magneotherapy and various types of massage. There are also many different styles of acupuncture practiced all over the world. There are many things to consider when choosing an acupuncturist. Acupuncture is a licensed and regulated healthcare profession in about half the states in the United States. There are many acupuncture practices which are not cert .....

.... fiction and science fact. Hopefully, all the clarification will come by the close of this essay. A black hole is probably one of the most misunderstood ideas among people outside of the astronomical and physical communities. Before an understanding of how it is formed can take place, a bit of an introduction to stars is necessary. This will shed light (no pun intended) on the black hole philosophy. A star is an enormous fire ball, fueled by a nuclear reaction at its core which produces massive amounts of heat and pressure. It is formed when two or more enormous gaseous clouds come .....

.... can also be emitted into the atmosphere ny natural disasters or means. This ten percent of all sulfur dioxide emission comes from volcanoes, sea spray, plankton, and rotting vegetation. The oxides of nitrogen are by-products of firing processes of extreme high temperatures, for example: automobiles, and utility plants; and in chemical industries, for example: fertilizer production, etc. Also, natural processes such as bacterial action in soil, forest fires, volcanic action, and lightning make up five percent of nitrogen oxide emission. Transportation makes up 43 percent, and 32 pe .....

.... They can be found in 85 countries all over the world, however, 90 percent of them are concentrated into fifteen countries, each containing over ten million hectares. Tropical rainforests receive 160 to 400 inches of rain each year. Although these dense, damp forests cover just 5 percent of the Earth's surface, they can provide homes for between 50 and 90 percent of the Earth's plants and animals (http://www.davesite.com/rainforests/review1.shtml). Tropical rainforests consist of three distinct layers referred to as the forest floor, the understory, and the canopy. The forest floor .....