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Leukemia

... in genetic structure causes leukemia. Changes in gene structure could be caused by environmental problems. Some of these problems could be: birth defects, radiation, viruses, and chemicals. Leukemia is not inherited and is not contagious. There are two major types of Leukemia, Lymphocytic and Granulocytic. In Lymphocytic Leukemia white blood cells known as Lymphocytes, which are made in the Lymph glands and bone marrow are abnormal or immature. In Granulocytic Leukemia this causes an increase in white blood cells known as ...

Number of words: 457 | Number of pages: 2

Kangaroos -

... water. Its claws are also sharper for finding water. Its legs are not as big or strong because they do not leap as much. Therefore, their body weight has been reduced, allowing them to be more efficient with they water they can find. They also have wider feet than the kangaroos living in wetter climates. This allows the kangaroo to be able to have more traction in the higher elevations. The kangaroos that live in the coastal regions also have several special adaptations. They have wider feet to allow them to walk is shallow water. The ...

Number of words: 1652 | Number of pages: 7

Green Laws Boost Clean-up Iindustry

... say the least. Just how vigorous this potential goldmine is going to be for the clean- up industry ac-tually depends on law and order, so to speak. That is to say that one of the main reasons for the turn up is new legislation. Recent EU-directives as to pollution may cause heavy demands on the purse of one company and consequently pour that money down the pockets of the clean technology indu-stry. Moreover the deadlines for plants to meet EU-directives are getting close, and everything se-ems to show that the laws will be enforced. ...

Number of words: 972 | Number of pages: 4

Chemistry-soaps And Detergents

... in Mediterranean countries around 2500 years ago. The basic process has not changed much although now the chemistry is understood. Soap is made from the process called saponification, the alkaline hydrolysis of fats and oils. It is essentially the reverse of esterification. O O R-C-O-R’ + NaOH ---- R-C-O-Na+ + R’OH Ester(fat) + base(caustic soda) ---- salt of fatty acid(soap) + alcohol(glycerol). Caustic potash (potassium hydro ...

Number of words: 655 | Number of pages: 3

Asteroid Defense

... pieces and have those pieces raining down on Earth. One of the most important parts of defending our planet would be to find and chart every asteroid that could threaten us. That would be a very tedious and never ending job, but is necessary for the defense system to work. It would do us humans no good to have some sort of defense against asteroids if we don’t know when they will strike. So after thinking about an anti-asteroid defense system, I think that our government should look into constructing one. When one thinks about wh ...

Number of words: 346 | Number of pages: 2

Cloning

... genes, determine their nucleotide sequences, and reproduce them in the laboratory. This offers the possibility of creating entirely new genes with commercially or medically desirable properties. While the potential benefits of genetic engineering are considerable, so may be the potential dangers. For example, the introduction of cancer-causing genes into a common infectious organism, such as the influenza virus, could be hazardous. We have come to believe that all human beings are equal; but even more firmly, we are taught to believe e ...

Number of words: 611 | Number of pages: 3

Green Fluorescent Protein Purification

... amino acid residues; this bonding serves to delocalize charge. In emitting light, the GFP fluorophore undergoes a cycle in which it absorbs a photon, deprotonates to form a phenolate which then emits a photon (at 509 nm) and gets protonated again so the fluorophore returns to its original state. This cycle allows the fluorophore to reliably emit a high yield of light with no outside influence other than the incoming photon. So GFP is basically a stable little (27-30 kD) green light bulb that can be tacked on to other proteins at ...

Number of words: 1280 | Number of pages: 5

Hiv

... a heavy burden of this illness. No cure or vaccine now exists for AIDS. Many of those infected with may not even be aware that they carry and can spread the virus. Combating it is a major challenge to biomedical scientists and health-care providers. infection and AIDS represent among the most pressing public-policy and public-health problems worldwide. COSTS I think that the AIDS epidemic is having a profound impact on many aspects of medicine and health care. The U.S. Public Health Service estimates that in 1993, the lifetime cost of treati ...

Number of words: 799 | Number of pages: 3

Biomechanics

... done in laboratories where scientists use calibrated machines to test stress and wear of artificial limbs. These days, prosthetics, are made of titanium and lightweight fiberglass to make a near perfect match with most people. The most common prosthesis is the replacement in a below the knee amputation. The American Society of (ASB) held a meeting at Clemson University of 1997 in order to develop a sports prosthesis that would stand up to every day flexing of the knee for performance in sports. In order to develop this prosthesis they had t ...

Number of words: 617 | Number of pages: 3

Linux 2

... other components to form a complete LINUX System or Distribution. When most people refer to LINUX, they are talking about this complete set of programs needed to run a computer, not just the kernel. Many people know of, or have at least heard of, UNIX. UNIX is both one of the oldest and one of the most powerful operating systems available today. "How can UNIX be old and yet powerful by today's standards”, you ask. The answer to this question lies in the history of UNIX; UNIX is a sort of subset of a much larger and more complex ...

Number of words: 6064 | Number of pages: 23

Luggerhead Turtle

... born underground in sand near the shore and takes about thirty-six hours to dig itself out of the nest. When it is born it is the about the size of a child's hand. It eats the Portuguese Man of War, a very deadly jellyfish. It has very tough skin so it does not have to worry about getting stung by the jellyfish. It lives in the ocean all of its life and lays its eggs on the shore, when the babies are born they go on their own to their own life. The turtle lives in a type of weed which floats in the ocean drifting with the currents, the envir ...

Number of words: 300 | Number of pages: 2

Mars:

... the world’s most distinguished scientists. Like all discoveries, this one will and should continue to be reviewed, examined and scrutinized.” After Clinton said this it was almost as if a scientific boom had occurred. NASA research teams of scientists at Johnson Space Center began to look for life as well. NASA began to send robots and Satellites to Mars. Unfortunately, they found nothing or lost contact with the robots or Satellites in the process. During the year of 1999 NASA sent up two rockets toward Mars and both were ...

Number of words: 736 | Number of pages: 3

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