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» Browse Science and Environment Term Papers
Finding Mass Using The Inertial Balance
Number of Words: 575 / Number of Pages: 3
... class will measure the period of oscillation of their balance pans when they are empty. The accepted period will be the average of the class. To find the period, you will measure the amount of time it takes for your balance to complete 20 oscillations. The period (T) will be computed by taking your time and dividing it by 20. This will be recorded as T2.
2) You will then measure the mass of your empty pan (including all screws) and record this as m2.
3) You will then measure the mass of one c-clamp. Record this as m1 accepted.
4) Using the inertial balance, find the time it would take f ...
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Common Cold
Number of Words: 649 / Number of Pages: 3
... which they kept daily diaries of their stress. Researchers then measured the subjects' saliva for a substance called secretary immunoglbulin-A antibody, the less they had of it, the more likely it was that the subject would come down with the cold. This may be true according with Dr. Stone, but an argument made by Dr. Gwaltney, "You see, you could have a ton of immunoglobulin-A and you could still get sick. If you don't have a specific antibody for the cold virus that's after you, you're still a goner."
Acute stress is one of the most forgotten way of how a person could catch a cold. Acute stress las ...
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The Planet Mars
Number of Words: 742 / Number of Pages: 3
... The CTV carries them to the habitat lander. They land on Mars,
and do their business. When they’re done, the habitat lander takes them
back up to orbit where they meet back up with their CTV, waiting patiently
in orbit, that takes them back home.
The money issue is being handled in many different ways. The most
successful plan so-far is the ThinkMars plan. Students at MIT and Harvard
are setting up a for-profit corporation which they contract out various
tasks to small businesses and corporations for NASA research centers. The
US and other govt.’s help out by buying certain rights to the space c ...
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Antibiotic Resistance 2
Number of Words: 3982 / Number of Pages: 15
... to the cells of treated individuals. Yet with each passing decade, bacteria that defy not only single but multiple antibiotics -- and therefore are extremely difficult to control -- have become increasingly common.
What is more, strains of at least three bacterial species capable of causing life-threatening illnesses (Enterococcus faecalis, Mycobacterium tuberculosis and Pseudomonas aeruginosa) already evade every antibiotic in the clinician's stockpile of more than 100 drugs. In part because of the rise in resistance to antibiotics, the death rates for some communicable diseases (such as tuberculosi ...
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Polymers
Number of Words: 397 / Number of Pages: 2
... and the Pontiac Fiero.
New are being created with more strength and flexibility by combing two chemically different and producing a block copolymer. Combinations of block co and composites and intended for use in booster rockets and in materials of Earth-orbiting installations.
Most common are usually solid, but a new class of is being introduced in a liquid crystal state. Although these still have the physical characteristics of liquid, they are structured more like solids. Many liquid crystals are transparent at one temperature and colored at another temperature. This makes them suitab ...
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Chlamydia 2
Number of Words: 2145 / Number of Pages: 8
... Chlamydia prevention and patient care were impeded by the lack of suitable laboratory tests for screening and diagnosis. Such tests are now available. Through education, screening, partner referral, and proper patient care public health workers and health-care practitioners can combine efforts to decrease the morbidity and costs resulting from this infection.
Chlamydia is the number one bacterial sexually transmitted disease (STD) in the United States today. Four million new cases of chlamydia occur each year. It is many times more common than gonorrhea. Chlamydia infection is primarily tran ...
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Household Waste!
Number of Words: 520 / Number of Pages: 2
... an expiration date on it, 9/98. This expiration date may be
incorrect because that piece of tape to cover it has been lost for some time now.
II Windex
In the cupboard in the upstairs bathroom is where we keep the Windex.
The Windex is blue and clearly labeled, with no chance of any person mistaking
it for something else. The top part is tightly screwed on with Windex filled to ¾
of the original volume. I cannot find any expiration date, nor can I find any
hint there ever was one. I should contact the product vender to see if the
Windex is immortal or what.
III Vinegar
I go to the kitchen cupbo ...
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A Massive Project For The Benefit Of Mankind: A Look At The Human Genome Project
Number of Words: 1421 / Number of Pages: 6
... up the project.
This automation may help to reduce the cost and help the project to meet its
objectives ahead of schedule. The project was estimated to have detailed maps
of all of the chromosomes and know the location of most of the human Genes by
1996. Researchers have successfully located the gene and DNA sequence for
Huntington’s Disease on Chromosome 4 and have created a genetic test to
determine if a person carries this gene. "The child of a person with
Huntington's has a 50% chance of inheriting the gene, which inevitably leads to
the disease." Once an individual acquires the gene, it is ...
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Stars
Number of Words: 3925 / Number of Pages: 15
... periodically change in brightness) have lettered names, such as RR
Lyrae in the constellation Lyra. Fainter stars are known by their numbers
in a catalog; HD 12938 is the 12,938th star in the Henry Draper Catalogue.
CHARACTERISTICS OF STARS
Each star in the universe has its own position, motion, size, mass,
chemical composition, and temperature. Some stars are grouped into clusters,
and stars and star clusters are collected in the larger groupings called
galaxies. Our GALAXY, the Milky Way, contains more than 100 billion stars.
Because tens of millions of other galaxies are known to exi ...
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Dna Chips And The Pharmaceutical Industry
Number of Words: 1693 / Number of Pages: 7
... makes it through the testing phase and onto the shelves at the local pharmacy. The effect is that the production of a new drug is almost like a guessing game that may or may not produce any profit. A Company may have a long list of chemicals that could make possible drugs to treat a specific affliction, but by the time they narrow the list down, and do the necessary research and testing, they may have already spent possibly millions of dollars. In the end they may not even be left with a viable drug to market.
BACKGROUND
This section is designed to educate the reader on some of the backgroun ...
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