... vigilant in the quest for explanations of its causes and treatment. Affective disorders are characterized by a smorgasbord of symptoms that can be broken into manic and depressive episodes. The depressive episodes are characterized by intense feelings of sadness and despair that can become feelings of hopelessness and helplessness. Some of the symptoms of a depressive episode include anhedonia, disturbances 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 e ...

... comes to perihelion. Through a telescope Mars has bright orange regions and darker ,less red areas the outlines and tones change in martian seasons.The reddish color is because of it's heavily rusted surface.The dark areas are thought to have rocks that are simmilar to terrestrial basalts, the surface is even more weathered and rusted.The brighter areas seem to have similar but even more weatherd and rusted material that apparently contain more fine, dust-sized particles than they do the dark reigons. The mineral scapolite,which is rare on Earth,seem's wide spread; it may serve as a store for carbon dioxide in the ...

... regular air and compressed it. Upon releasing the stopper Newton’s first law went into effect which states that for something to move a force must act upon it in this case the gas moving out of the bottle. When the stopper was pulled the pressure in the bottle forced its way down, which applied the force to start the motion of the bottle. His 3rd law can also explain this because the water going down forces the rocket in the exact opposite direction the water goes. Which is why one time when we shot the rocket it flew at an angle. Also it shows why the launchers had stoppers, because if they didn’t the co ...

... worlds of these two great scientists that lead to the reaction to their respective scientific hypothesize. It was not their beliefs alone that led to their peer's views it was also the way each of them conducted themselves. Galileo worked his way to become a respected scientist by most of the intellectual community but he was also despised by many because of his background and because of his attitude towards others. Darwin was well respected by the intellectual community, but the difference was the way they conducted themselves when they were dealing with their hypothesizes. Galileo's Hypothesis Galileo was we ...

... in investing in computers and technology. The use of Information Technology benefits students greatly in many areas. Information technology has encouraged the development of productivity, increased student involvement and enabled students to complete joint projects with students in other cities, states and even countries (Carey 26). Studies on students who have twenty four hour access to laptops have shown that students shown an increase in problem-solving and critical thing sills, enhanced learning in core academic subjects, produce higher quality work and have even provided more one-on one time between teachers ...

... and underwater life in thousands of lakes and streams around the world. It strips forest soils of nutrients and damages farm crops. Acid rain can also corrode stone buildings, bridges, and priceless monuments. Acid rain can also be harmful to humans because acid rain kills the crops and fish we eat, ruins homes, and the acid can release lead in the pipes and the lead could go into our drinking water. It is hard to determine where acid rain may fall next, because the wind from a pollueted area could carry pollution to another area and the acid rain could fall there. The regions effected more by acid rain is large p ...

... growth rate, others say that it cannot. Some of these sources recount statistics of a slowing population growth, however, the most appalling facts are that the planet Earth's water resources are depleted now. How can we allow the population to grow unchecked, when we know that even now, the Earth's water supplies are taxed to the limit? The subject of over-population encompasses many areas of study. Some examples are health, food, pollution and fresh water. The underlying link between all of these areas is water. The following four articles reveal that the water supplies that we all depend on are being used at ...

... who, because of this chromosome variation, has a hormone imbalance. While Dr. Harry Klinefelter accurately described this condition in 1942, it was not until 1956 that other researchers reported that many boys with this description had 47 chromosomes in each cell of their bodies instead of the usual number of 46. This extra sex (X) chromosome causes the distinctive make-up of these boys. All men have one X chromosome and one Y chromosome, but sometimes a variation will result in a male with an extra X. This is and is often written as 47,XXY. There are other, less common variations such as 48,XXYY; 48,XXXY; 49,XXXX ...

... and tropical storms are also altered in their numbers by . Therefore it would be very helpful for people if could be predicted and prepared for in some form. During a cycle there are many biological changes. Due to a depressed thermocline there is less photosynthetic activity resulting in a decrease in the primary life forms that form the beginning of the food chain. The warmer waters that are brought by these changing cycles hold less dissolved oxygen forcing fish to go deeper or venture elsewhere. Due to a lack of data during occurrences it is not fully known if fish populations are depleted solely due ...

... of a linked series of unites called nucleotides. Each DNA nucleotide is composed of 3 subunits: a 5 carbon sugar called deoxyribose, a phosphate group that is joined to one end of the sugar molecule, and one of several different nitrogenous bases linked to the opposite end of the deoxyribose. There are 4 nitrogen bases called adenine, guanine, thymine, and cytosine. In DNA adenine pairs with thymine and guanine with cytosine. Medicine's ability to diagnose continues to exceed its ability to treat or cure. For example, Huntington's Chorea is an inherited disease that develops between the ages of 30 and 45, can ...