tool in biochemical analysis. Therapeutic uses of radioisotopes cover from external gamma-ray sources in teleradiotherapy to direct cell irradiation in metabolic therapy. Radioisotopes can be use in medicine in four different ways. They are: 1. Radioactive tracers for diagnostic purposes 2. Radiation source in therapy 3. Research and 4. Sterilization The radioisotope therapy has been available to those disease conditions in which extensive cellular malfunction exists. Diagnostic radiopharmaceuticals are
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differences. A major difference is their use. DDT is used to kill microorganisms. It works as a pesticide. Radium is used mainly as paint because it is able to glow. Another difference is their ability to be radioactive. Radium is very radioactive‚ which is why it affects the body so much. DDT is not radioactive. It does its damage by destroying DNA strands. DDT and Radium are different in more ways than they are similar. Since their discoveries in the last 1800’s many laws and restrictions have been put
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of people believe that television is harmless. However‚ scientific studies prove that unlike any other household equipment television sends out a lot of radioactive rays. Indeed‚ radiation deteriorates vision. As well‚ it can damage it. For example‚ some people like to sit close to TV sets. Their eyes are too close to the screen and radioactive rays are constantly getting in their eyes. For that reason‚ television harms people’s vision. Television sends out radiation that has negative effect on people
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Current Events Assignment Earthquake in Japan On March 11‚ a 9.0-magnitude earthquake struck the northeastern coast of Japan‚ causing widespread and serious damage to infrastructure and to human life. A massive earthquake-triggered tsunami followed‚ washing away large parts of several coastal cities The recent tragedy in Japan will affect the global food supply and might just be the event that triggers the reverse of our dependence on Asia for cheap foods. Americans might complain about
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Radium Girls was a chemical disaster that happened during the 1920’s. Women in watch making were being exposed to Radium all the time. These women worked painting wristwatches‚ and in order to get a fine point on their paintbrush they licked the brush‚ therefore swallowing the paint. Some of them also painted their teeth and nails with this paint since they were told that it wasn’t harmful. The paint had Radium in it‚ therefore exposing them to Radium. They painted the numbers on the watches. They
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Henri Becquerel became the first to discover radioactivity‚ gamma rays‚ and alpha and beta particles by studying uranium and other radioactive materials. Becquerel believed that Uranium phosphoresced‚ or absorbed energy from the sun and then emitted it in the form of light and radiation. He tested this by leaving Uranium salts‚ or potassium uranyl sulfate‚ in the sun for several hours and then leaving it‚ along with a coin‚ on a photographic plate. A photographic plate was used as an early photograph
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the town. The bizarre outcome is further emphasized throughout by the symbolism of the decaying house‚ which parallels Miss Emily ’s physical deterioration and demonstrates her ultimate mental disintegration. Emily ’s life‚ like the house which decays around her‚ suffers from lack of genuine love and care. The characteristics of Miss Emily ’s house‚ like her physical appearance‚ are brought about by years of neglect. For example‚ the house is located in what was once a prominent neighborhood
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Ruthenium often called its symbol‚ Ru‚ which atomic number is 44 and the atomic mass is 101.07 u ± 0.02 u. This element is known to have 27 radioactive isotopes but 7 regular isotopes. Ruthenium is solid at room temperature and looks like a hard‚ silvery-white metal with a shiny surface ( See page 2 for picture. ).The 3 main types of subatomic particles are protons‚ neutrons‚ and electrons. To humans Ruthenium is highly toxic and carcinogenic‚ and shouldn’t be touched if came into contact with.
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Radioactive Decay‚ Nuclear Fission and Nuclear Fusion When elements undergo radioactive decay the atoms of one element are changed into the atoms of another element when an alpha or beta particle is emitted from an unstable nucleus. When a nucleus disintegrates and emits an alpha particle it is alpha decay‚ the alpha particle emitted contains two protons and two neutrons which is equivalent to a helium nucleus being released. Alpha decay occurs because there are too many protons‚ which causes
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medicine. There are also some additional areas where we can use radiation which include cancer and commonly called therapy. A subspecialty in nuclear medicine is nuclear medicine therapy. A common example of nuclear medicine therapy is the use of radioactive iodine to treat thyroid problems‚ including thyroid cancer. It also used in oncology which is the branch who works on treatment of cancer. Figure 1.2 x ray view
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