... However, for a given rate of force generation, birds use on average 1.7 times more metabolic energy than quadrupeds. The rate of energy consumption for a given rate of force generation for humans is intermediate between that of birds and quadrupeds. These results support the idea that the costs of muscular force production determines the energy cost of running and suggest that bipedal runners use more energy for a given rate of force production because they require a greater volume of muscle to support their body weight. Key words: locomotion, energetics, bipedal, bird, muscle force. Introduction The question of wither more energy is required to ru ...
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... are another common area for white sharks. In the summer the sharks move to the coasts of Oregon and occasionally the Gulf of Alaska, and in the fall, they turn south and move along the offshore islands. They are also found in great numbers in the Australian waters. The great white is a very agile killer that hunts mostly anything in the ocean. They are carnivorous and usually prey on sick or injured prey. Just one drop of blood can make the shark go into a feeding frenzy. It is not made to swim fast and its usual speed is fifteen miles per hour. It migrates south to warmer waters to give birth to six to nine pups. The only wa ...
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... the middle ages, this abnormal behavior was considered to be a result of demonic possession. It was treated with exorcism, flogging and torture to drive the evil spirits from the body. It wasn't until the late 19th and early 20th centuries that physicians had a more scientific view on depression. Sigmund Freud and Josef Breuer discovered that depression is a psychological and not a demonic force or organic abnormality. Depression is caused by many factors. The loss of a loved one during childhood or other traumatic experiments (ie. abuse) can increase person's chances of developing depression later on in life. The number one cause of depression i ...
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... be a possibility for a human resource. I will be discussing some of these issues, questions, and problems. In the beginning when the solar system was young, the earth was still forming, things were very different. A great mass of elements swirled around a dense core in the middle. As time went on the accumulation elements with similar physical properties into hot bodies caused a slow formation of a crystalline barrier around the denser core. Hot bodies consisting of iron were attracted to the core with greater force because they were more dense. These hot bodies sunk into and became part of the constantly growing core. Less dense elements were p ...
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... zero volume, where it is said to have infinite density. This is referred to as a singularity. When this happens, escape would require a velocity greater than the speed of light. No object can reach the speed of light. The distance from the black hole at which the escape velocity is just equal to the speed of light is called the event horizon. Anything, including light, that passes across the event horizon toward the black hole is forever trapped. Using a small black marble as an example to represent the size that the Earth would become if it collapsed and became a black hole, Todd R. Lauer, of the National Optical Astronomy Observatories said, " Black holes are very ...
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... vomiting, diarrhea, skin rash, weakness, or inability to think clearly. The symptoms take about two weeks to go away if they don\'t lead to death. This bacterial pathogen is considered extremely dangerous and is probobly armed. Salmonella Typhi has been on the loose for many years and was cuased a lot of havoc and done a lot of damage over the years. Typhoid fever affects 17 million people worldwide every year, with approximately 600,000 deaths. To protect yourself from typhoid fever, aviod risky food and drinks and get vaccinated aginst typhoid fever, and wash your hands carefully a lot to make sure you have not touched something infected with Salmonella Ty ...
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... Wolf, Emperor Penguin, Koala, Reticulated Giraffe, Snowy Owl, and unfortunately hunderds of more. The death of these animals each year are all different and sometimes so simple. There are two different kinds of causes that drastically cut Down the number of these endangered species: Direct Causes Direct Causes is when the animals are purposely hunted, trapped, fished, whaled, or seled to extinction. Hunting for sport has been responsible for endangering such animals as the Polar Bear and the Siberian Tiger. But the endangerment of most species that are hunted or trapped today results mainly of commercial activities. Among the animals that have become endangered f ...
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... tests are time consuming and technically difficult to do, are restricted to women over 35 and those who have a family history of chromosomal abnormalities. Prenatal tests using Willard's probes would be much simpler and faster to perform and could be available to all pregnant women who wish to take advantage of the technology. Current prenatal testing involves growing fetal cells in vitro and examining them, over one or two months, to see if there are two copies of a particular chromosome, which is normal, or one or three, which is abnormal. A test using Willard's probes would require only a few cells and a few days to detect abnormalities. "I don't think it's ...
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... the change in temperature from 90o to 70o Celsius, recording the temperature at regular intervals, preferably 15 seconds. This data will be used to make a chart later. 7. Once the temperature has fallen to 70o, melt the naphthalene which is now frozen to remove the thermometer. Properly dispose of the naphthalene liquid as instructed by the teacher. IV. Data Time Elapsed Temperature of Naphthalene Time Temperature Initial (0:00) 100oC 7:00 78.5oC 0:30 97.5oC 7:15 78.3oC 1:00 93.0oC 7:30 78.3oC 1:30 89.5oC 7:45 79.0oC 2:00 86.1oC 8:00 79.0oC 2:30 84.6oC 8:15 79.0oC 2:45 82.3oC 8:30 79.0oC 3: ...
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... coverage for the billion dollar industry of alternative treatments, insurance companies are keeping the cost of the premiums down but at the same time not allowing their customers to use complementary treatments such as chiropractic to prevent or cure illness. The more rigid and restrictive the policy provisos, the more assurance for the companies that they will maximize their bottom lines. Therefore, patients of alternative therapies as well as doctors must show that such unconventional treatment provides relief and prevention of illness. “The total projected out-of- pocket expenditure for unconventional therapy plus supplements(such as diet pills and ...
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