.... extra X. This is and is often written as 47,XXY. There are other, less common variations such as 48,XXYY; 48,XXXY; 49,XXXXY; and XY/XXY mosaic. All of these are considered variants. The major effect of the extra X chromosome in boys with seems to be the function of the testes. The testes produce the major male sex hormone testosterone and the amount of this hormone may be decreased in boys with . When these boys reach 10-12 years of age, it is helpful to measure their blood hormone levels periodically (e.g., yearly) to see if they are normal. If the testosterone level is low, resulting in diminished sexual changes which boys .....

.... days of fibre, but that have since been answered by technical advances. Fibre is fragile An optical fibre has greater tensile strength than copper or steel fibres of the same diameter. It is flexible, bends easily, and resists most corrosive elements that attack copper cable. Optical cables can withstand pulling forces of more than 150 pounds. Fibre is hard to work with This myth derives from the early days of fibre optic connectors. Early connectors where difficult to apply; they came with many small parts that could tax even the nimble fingered. They needed epoxy, curing, cleaving and polishing. On top of that, the tec .....

.... these countries are located in the Middle East and some are signatories to the Biological Weapons Convention. This 1972 Biological and Toxin Weapons Convention, prohibited its signatories from possessing or employing such weapons. This possess a significant threat to the U.S. and all the other countries who hold grudges with the ones who have biological warfare programs. Nations acquire biological programs because they view it as an "inexpensive route to acquisition of a weapon of mass destruction." Biological weapons are often called a "poor man's atomic bomb." Another reason why nations acquire these weapons is because they "des .....

.... Durham, North Carolina, remain the most quoted examples of an expirimental blitzkreig on problems of parapsychology. Three years of Rhine's telepathy and clairvoyance testing averaged 7 successes out of every 25 people tested, 2 better than chance would have produced, an overall result millions to one against the odd. Chapter ][ What is ESP? ============ What is ESP? Extrasensory Perseption or ESP is the abillity acquire information without using any senses. In the dictionary, ESP is defined as: extra(eks'ra) n. 1. Something in addition to what is usual./ sensory (sen'so ri) adj. Pertaining to se nsation or to any one o .....

.... experience some bizarre dreams. Early in the 20th century, Sigmund Freud believed that dream content was composed of the mental processes different from that used in the awake state. He believed this was what dominated the dreaming mind. He described this "process" as characterized by more primitive mechanisms, by rapid shifts in energy and emotion, and by a great deal of sexual and aggressive content derived from childhood. (Hartmann, E. 1997) There are 4 stages of sleep. The individual goes from awake to stage 1, then to 2, 3, and finally 4, the deepest stage of sleep. After spending about 20 minutes in stage 4, they retur .....

.... photosynthetic surface areas. Hypothesis: Alternative Hypothesis: states the hypothesis being tested in this experiment. Photosynthetic structures of plants adapted to arid environments have a lower surface area to volume ratio than plants adapted to less dry or moist environments. Null hypothesis: there are no differences between the wet and dry habitat plants and observed differences are purely a result of chance. The null hypothesis is formulated to be rejected. Methods: The methods used to gather data for this experiment were fairly simple. Three plants from an arid environment and three from a moist environm .....

.... in the future. This model assumes the perfect cosmological principle. This principle says that the universe is the same everywhere on the large scale, at all times.2 It maintains the same average density of matter forever. There are observational evidences found that can prove the Big Bang model is more reasonable than the Steady State model. First, the redshifts of distant galaxies. Redshift is a Doppler effect which states that if a galaxy is moving away, the spectral line of that galaxy observed will have a shift to the red end. The faster the galaxy moves, the more shift it has. If the galaxy is moving closer, .....

.... the brain becomes dependent on this drug to unburden itself whenever it feels the compulsion. Several factors that contribute to alcoholism are the individual’s psychology, genetics, culture, and the individual’s response to physical pain. In order to understand alcoholism, we must first define what scientists classify alcoholism to be. Moderate drinkers drink equal to at least two drinks a day. An at-risk person for alcoholism will drink more than fourteen drinks a week or four drinks in one sitting. An individual who suffers from alcohol abuse would display one of the above mentioned behaviors for a period of a year o .....

.... so CFCs were created because they could be kept in liquid form and in an only slightly pressurized can. Thus, in 1947, the spray can was born, selling millions of cans each year. Insecticides were only the first application for CFC spray cans. They soon employed a number of products from deodorant to hair spray. In 1954, 188 million cans were sold in the U.S. alone, and four years later, the number jumped to 500 million. CFC filled cans were so popular that, by 1968, 2.3 billion spray cans were sold in America. The hopes of a seemingly perfect refrigerant were diminished in the late 1960's when scientists studied the .....

.... fact 40% of American use some form of herbal or other in the world today (Jonas). This fact just shows how widely used this method is. According to a survey of 1,539 adults in 1990 and 2,055 in 1997, use of at least one type of alternative therapy during the previous year jumped from 33.8 percent in 1990 to 42.1 percent in 1997 (Mann). These facts show just how fast is growing. The option to ignore the use of is gone. For how much this new method of medicine is growing it is almost impossible to overlook. The subject of is a two-sided argument. On one side you have the conventional or western medical practitioners and .....