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» Science Essays and Papers
Mini-Research
<view this essay>.... of the cathode-ray
particles. He found e/m identical to those particles irrespective of the metal
the electrodes were made of or the kind of gas in the tube. In 1909, RA
Millikan, an American scientist, measured that charge. All electrons are found
to be identical no matter their source or the method of liberating them from
matter. From the values of e/m, and e, the mass of an electron was calculated
to be .00055 amu.
PROTON- Eugeen Goldstein used a Crookes tube with holes in the cathode, and
observed that another kind of ray was emitted from the anode and passed through
the holes. He discovered this in 1886. In 1889, William Wien showed these rays
to b .....
Number of words: 286 | Number of pages: 2 |
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New Research Indicates That Drug Therapy Is More
<view this essay>.... programs for schizophrenic’s is that they suffer from both positive and negative symptoms, each requiring different type of treatments. In order to combat the difficulty of treating schizophrenia, several techniques have been devised; psychoanalytic therapy, behavioural therapy, family therapy and most predominantly, drug therapies. Drug therapy is the primary form of treatment implemented at the onset of schizophrenia. The drug clozapine is very effective for many patients who do not respond to initial drug treatment programs and treats both the positive and negative symptoms of schizophrenia (Advokat et al., 1999; Robinson et al., 1999). Moreover, .....
Number of words: 2188 | Number of pages: 8 |
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AROMTHERAPY
<view this essay>.... The nature of Aromatherapy is as a holistic treatment, restoring balance to mind and body as well as its specific use in treating a wide range of symptoms. Aromatherapy can help ease a wide assortment of ailments; easing aches, pains, and injuries, while relieving the discomforts of many health problems. Aromatherapy also acts on the central nervous system, relieving depression and anxiety, reducing stress, relaxing, uplifting, sedating or stimulating, restoring both physical and emotional well-being. Although Aromatherapy is consider to be a new and alternative foram of medicine in the western world, however it has been practiced for thousands of years .....
Number of words: 899 | Number of pages: 4 |
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Infectious Diseases
<view this essay>.... adapting, and becoming resistant to new antibiotics, antiviral medications, and new forms of treatment. They are able to mutate, split, divide, and create perfect clones of themselves at alarming rates. The efficiency that these diseases carry is also alarming. They are able to lie dormant for years before attacking their next victim. It is for this reason that the number of cases increases on a yearly basis. This is why individuals should take further precautions in preventing these diseases as well as preventing the spread of them on a global scale. Many people in today's society must take a more serious look at the implications that an infect .....
Number of words: 2610 | Number of pages: 10 |
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Hemp: The Truth About The Earth's Greatest Plant
<view this essay>.... threat
to the wood industry. Corporations that profited from the demise of hemp spread
rumors that marijuana was a major drug problem, which it was not at the time.
They also propagated a campaign that it was a drug that induced uncontrollable
violence, another complete falsehood.
Hemp is the plant scientifically known as cannabis sativa. It is
referred to as hemp when it is grown for its fibers, stem, and seeds. Its leaves
and flowers produce the drugs marijuana and hashish. However, sterile breeds of
the plant are still illegal to grow in the U.S. Literally millions of wild hemp
plants grow throughout the entire Midwest today. Wild hemp, like hemp use .....
Number of words: 820 | Number of pages: 3 |
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Endosymbiosis
<view this essay>.... is well protected. It lies within a bony socket of the skull. The eyelids guard it in front. They blink an average of once every six seconds. This washes the eye with the salty secretion from the tear, or lachrymal, glands. Each tear gland is about the size and shape of an almond. These glands are located behind the upper eyelid at the outer corner of the eye. After passing over the eye, the liquid from the gland is drained into the nose through the tear duct at the inner corner of the eye.
Heavy laughter or crying causes muscles in the upper eyelid to squeeze the lachrymal gland. This produces tears that flow too fast to be drained away. The eyelashes catch ma .....
Number of words: 2101 | Number of pages: 8 |
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Bacterial Conjugation Experiment
<view this essay>.... cells are attached. This process is called conjugation. The third manifestation of the F factor is Hfr, which is the term for the F element becoming integrated into the genome. When conjugation occurs, the F genes start travelling across the pilus, bringing the remainder of the genome behind it. Most often, the entire genome isn't transferred. The bacterial genome that is delivered can be measured in minutes from the origin of transfer. That is, the amount of time it takes for a particular gene to be transferred from one bacterium to another indicated how far it is from the origin of replication.
METHODS AND MATERIALS: Media Preparation: The starting materia .....
Number of words: 1154 | Number of pages: 5 |
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Titanium
<view this essay>.... low density, good strength, easily fabricated, and has excellent corrosion resistance. It’s ductile only when free of oxygen. This metal, which does burn in the air, is the only element that burns in nitrogen. is resistant to dilute sulfuric and hydrochloric acid, most of the organic acids, most chlorine gas, and chloride solutions. When natural, is reported to become very radioactive after being bombarded with neutrons. The emitted radiations are mostly positrons and gamma rays. The hexagonal alpha form changes to the cubic beta form very slowly at around 880 degrees Celsius. The metal combines with oxygen at red heat, and with chorine at 550 degrees Celsi .....
Number of words: 645 | Number of pages: 3 |
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