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Science Online Essays


Chaparral
Number of words: 365 | Number of pages: 2

... fires. The leaves of the plants are mostly thickor needle like so it can reduce water loss through evaporation. The chamise, for example, has small, needle-like leaves that store up and save the moisture in the plant. The is the home of many species of reptiles, birds, and mammals. There are animals such as the alligator lizard, western rattlesnake, quail, roadrunner, scrub jay, brush rabbit, coyote, and mule deer. Some species are restricted to habitats only, but others inhabit adjacent vegetation types as well. The environment is very harsh. Annual rainfall ranges from 12 to 24 inches, with 85 percent falling between November and April. Summers are dry and hot, reaching ...

Malthus' Principle Of Population: Today And The Future
Number of words: 1927 | Number of pages: 8

... the diet of todays members of society living in poverty. Food projections are extremely uncertain since natural disasters are unpredictable and may increase if the forecasted effects of global warming materialize. Also, environmental degradation is increasing while water allocations are decreasing. Society will not be suddenly surprised by a “crisis point” at which food supplies are no longer adequate. Todays isolated anarchy and famine (which is politically inspired) in Africa could easily turn into a world wide sustenance inspired problem during the first half of the next century. Humans are the only creatures endowed with the ability to evaluate the consequences of their own actions. ...

Plastic Not Paper
Number of words: 559 | Number of pages: 3

... This is money we save as well as the store owner. This is a lot of money that is going to waste considering that plastic bags are so much more practical then paper. You can use them for lots of other things. You can take on trips to the grocery store, your can protect dry clothing from wet towels in an exercise bag. You can line your house hold waste basket with them, you tote dry shoes to work on rainy days. Hold plastic, aluminum and glass for recycling. Plastic bags are also very practical to carry. You can carry 5 compared with 2 paper bags. Plastic bags also hold just as many items as paper. This is also very practical because you can get your groceries out of your car ...

Autism
Number of words: 1888 | Number of pages: 7

... disorders (Nelson, Israel, 1997). The descriptions and classifications of these disturbances, however, were confusing and controversial. Kraeplin set the basis for modern classification. He used the terms dementia, a belief that progressive deterioration occurred, and praecox, meaning the disorders began early. Later the term schizophrenia was applied by Bleuer. He argued that deterioration was not inevitable and that psychological factors played a role. As time went on many other different diagnostic terms were applied such as dementia infantilis, disintegrative psychoses, childhood schizophrenia, and childhood psychosis (Nelson, Israel, 1997). Schizophrenia became the most commo ...

Hypnotism Is It Magic Or Reality
Number of words: 2615 | Number of pages: 10

... The first level is called beta. In beta the mind is in complete consciousness. Approximately 75 percent of this level is spent regulating vital bodily functions such as heartbeat, breathing, and digestion. The second state is called alpha. Alpha refers to when the mind is in 95 to 100 percent concentration. When hypnosis is induced, the mind is in the alpha level. In this state the mind is fully aware and conscious, but the outside appearance of the body suggests the person being hypnotized is asleep. The last two activity levels are theta and delta. In theta the unconscious mind is in a light sleep, and delta refers to the deepest sleep possible (Goldberg 13-14). Hypnosis takes ...

Dsl Should Be The Standard For Telephone Lines
Number of words: 321 | Number of pages: 2

... If someone wanted to look something up on the internet real quick or check their mail, all they would have to do is start their internet browser or email client and they would be set. DSL wouldn't only make our internet experience more enjoyable, but it would also improve the quality and reliability of normal phones. The digital format would be able to reproduce sound quality with great fidelity. Static-filled and "noisy" phone lines would be a thing of the past allowing for clearer long and short distance phone calls. An upgrade to DSL would be a benefit to all. This amazing new technology would change both our internet browsing and phone experiences for the better. ...

Mars:
Number of words: 736 | Number of pages: 3

... Due to the failures, time has been given for scientists to blueprint a credible and step-by-step search for life on the Red Planet. Without the pressure to return Martian samples to Earth any time soon, new schemes for automated, on-the-spot detection of past or present Mars life can be flown. Recently, two probes were sent back and they made it to Mars. They landed on the South Polar Caps of Mars. That is where NASA plans to find water. After landing on Mars, the probes extracted water like crystals from the surface of Mars. They found that there was a small amount of water in the crystals, which means that there is a strong chance that life, was on Mars at one time. In a r ...

Bacillus Anthracis 2
Number of words: 306 | Number of pages: 2

... however. The vaccine for both animals and humans is composed of sublethal amounts of toxin that induce formation of protective antibody. Frequent boosters are necessary to maintain resistance to Anthrax. Bacillus Anthracis spores also may live in soil for years. The only way to destroy the spores is by steam sterilization or burning. There has been no evidence of person to person transmission of the disease, though Anthrax was a subject of great concern for the military in the Gulf War. Many believed that the Iraqi armies held canisters of the Anthrax bacterium that they could use against their enemies. The largest reported outbreak of Anthrax was in 1956 in Scotland, where 70 people d ...

Should There Be A Nuclear Power Plant In Saskatchewan?
Number of words: 436 | Number of pages: 2

... is required to set up a solar, wind, or hydroelectric generating station which. This will allow more space for private landowners and will also keep land prices at a lower cost. Nuclear power is also a much cleaner operating type of fuel. The amount of waste produced is from a nuclear power plant is not even a fraction of the amount of sulfur, carbon monoxide, and nitrogen oxide produced by a coal plant. By building a nuclear power we will reduce acid rain and not add to the global warming. Hydro stations form algae in lakes which reduces the amount of oxygen in the water making it harder for marine life to survive. Although the damage nuclear accidents cause is very bad the risk of a a ...

Electronic Stimulation
Number of words: 640 | Number of pages: 3

... is simply the application of electrical pulses to the body, whether it is for function or therapy. The classical and common example is that of the cardiac pacemaker. The range of clinical uses of electrical stimulation has and is growing wider and includes: pain relief (often known as TENS - Transcutaneous Electrical Nerve Stimulation), maintaining or increasing range of movement, muscle strengthening, facilitation of voluntary motor function, and orthotic training or substitution. Functional Electrical Stimulation (FES) is a branch off of electrical stimulation. The term FES is applied to systems, which attempt to restore, lost or impaired neuromuscular function. This would includ ...

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