... in the military, in cars, in medicine, and in many other fields of study. For all industries and professions, "Fiber optics allow huge amounts of voice, data and video imagery to be transmitted instantaneously, allowing for photographic-quality images, interactive video conferencing and other business multimedia uses" (Inman News Features 1). It's becoming possible to transmit audio, video and data signals over great distances using these fibers of pure glass or plastic. Today, fiber optic technology has almost become a necessity in everyday business. Because fiber optics can simultaneously transmit two audio signals across a single fiber optics cable without interf ...
... have used perfumes for thousands of years, but there is a basic difference between perfume and pheromones. Pheromones are produced by the body and usually do not smell at all pleasant, whereas perfumes are either synthesized or extracted from natural products and are employed because of their pleasant smell. Scientific research suggests that there are human pheromones for both the male and the female. Females have a better developed sense of smell and testing indicates that they are more responsive to male pheromones than the reverse. Research over the years has found that the male pheromones belong to a class of compounds called steroids, in particular derivati ...
... two neighboring towns. The investigators discovered that most of the affected children lived near wooded areas likely to harbor ticks. They also found that the children's first symptoms typically started in the summer months coinciding with the height of the tick season. Several of the patients interviewed reported having a skin rash just before developing their arthritis, and many also recalled being bitten by a tick at the rash site. Further investigations resulted in the discovery that tiny deer ticks infected with a spiral-shaped bacterium or spirochete (which was later named Borrelia burgdorferi) were responsible for the outbreak of arthritis in Lyme. In Eur ...
... flat face without great prominence of the muzzle (excepting the baboons and drills). The hands and feet are prehensile, with, typically, five digits on each, the first (thumb and big toe) being divergent from the others. Commonly, the digits have flattened nails, but those of the marmoset are an exception. Except for the night-roaming durukuli of tropical America, monkeys are active during the day, moving frequently in bands in search of vegetation, birds' eggs, smaller animals, or insects to eat. Monkeys are highly social animals and are often organized in clans headed by an old male; these clans are rigidly defined in such species as howlers and baboons ...
... acts as a sedative and as an anesthetic, reducing nerve transmissions and impulses to the central nervous system. This depresses mental, motor, and vital functions such as pulse rate, respiration, and blood pressure (Kestler 6). The body can absorb alcohol very quickly, approximately 20% goes directly into the blood stream from the stomach, the rest enters the body through the small intestine. Moments after alcohol enters the blood stream it reaches the Cerebral Cortex, the part of the brain responsible for judgement. The areas of the brain controlling caution and self control are effected first, so most people feel more relaxed. Extremely large doses of al ...
... free from a group using a particle accelerator, but have failed. Mesons contain a quark and an antiquark, up, down, and strange, while baryons contain three quarks distinguished by flavours. Each has a charge that is a fraction of that of an electron. Up and down quarks make up protons and neutrons, and can be observed in ordinary matter. Strange quarks can be observed in omega-minus and other short lived subatomic particles which play on part in ordinary matter(1985 Quarks). The interpretation of quarks as physical entities poses two problems. First, sometimes two or three identical quarks have to be in the same quantum state which, because they have to hav ...
... full ADHD syndrome, without symptoms of other disorders. Another 5-10% have partial ADHD syndrome with one or more other problems, such as anxiety or depression.(CHADD) Gender and age affect the way the patients display their symptoms. Boys are more likely to have the disorder than girls. The symptoms of ADHD usually decrease with age, but those symptoms related with other similar disorders are said to increase with age. 30-50% of children with ADHD may display symptoms, although often times less severe, into adulthood. ADHD may be observed in children before the age of four, but it’s signs are often missed until the child begins school. ADHD is ...
... spend there whole lives searching for the substance that would start the transmutation that would make them rich, also many alchemists were hired by lords and noblemen who wanted to know the secret so they could become wealthier then they already were. Basically they saw easy money and would waste their lives and money to find out how to get it. There was another side to alchemy them just changing lead into gold, people not only wanted to be rich but they also wanted to live forever. The Elixir was the substance that would extend the life of the user. They thought that the elixir would start its own transformation in the human body, incorruptibility and hence ...
... the percent recovery of each from the mixture. 4) Separation of a Neutral and Basic Substance A mixture of equal parts of a neutral substance containing either naphthalene or benzoin and a basic substance containing either 4-chloroaniline or ethyl 4-aminobenzoate were to be separated by extraction from an ether solution. Once the separation took place, and crystallization was carried out, it became possible to determine what components were in the unknown mixture, by means of a melting point determination. Results Procedure Observations Inference Dissolve 3.05g Phenol ...
... and jewellery. Certain chemical compounds of copper can be used to help improve soil, and destroy harmful insects. Copper can also be used to help protect other materials against corrosion, and in small amounts is vital to all plant and animal life. The properties that make copper extremely useful include - Conductivity - Silver is the only better conductor, but is too expensive for common use. Copper also conducts both electricity and heat extremely well, which makes it extremely useful for cooking utensils, radiators, and refrigerators. Malleability - Copper is highly malleable. It does not crack when hammered, stamped, or forged, and can be worked when it i ...
