ferreira123@gmail.com MSc student in Biomedical Engineering‚ Instituto Superior Técnico‚ student no58548 Abstract Nuclear Medicine is the branch of medicine concerned with the use of radio-nuclides in the study and the diagnosis of diseases‚ eg. the assessment of organ function‚ detection and treatment of some diseases or monitoring of treatment’s effects. It provides physiological (not available from other imaging modalities) and diagnostic information. In the other hand‚ it uses very small amounts of radioactive
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Edcelyn M. 11280190 MADEPOL ‘Development’ is a concept which is contested both theoretically and politically‚ and is inherently both complex and ambiguous. (Sumner and Tribe‚ 2008) The Development of Development The issue on how to achieve development had gained a huge arena of talk on the development field but it is not alone in the limelight‚ even the concept of ‘development’ had gained many significant issues and changes‚ as well. Defining ‘development’ from the beginning is a debate among
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radiation‚ and naturally occurring radioactive elements found in the Earth. We are also exposed to man-made radiation including medical radiation. Nearly half of the radiation in which the US population is exposed to comes from medical sources such as CT scans‚ x-rays‚ and nuclear medicine. In 1899‚ Ernest Rutherford discovered that the radiation emitted by uranium consisted of two kinds of rays: one with weak penetrating power‚ (alpha rays) and another with stronger penetrating power (beta rays)
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past 10 years the usage of nuclear energy has become one of the most polarizing issues of the world. Especially in the Middle East when a country reveals information about its nuclear program‚ the west considers this country as a threat and tries all possible ways to stop this program. B. Thesis Statement. Nuclear energy is a double edged sword. It is every country’s right to own nuclear weapons as a defence mechanism against any outside threat. A country that owns a nuclear weapon is feared and respected
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Nuclear energy – Uses and abuses Nuclear energy is the energy created from the nucleus of atoms. The nuclear power is released in nuclear reactions which can be nuclear fusion and nuclear fission. In nuclear fusion‚ atoms combine together to form a larger atom. This is accompanied by the release or absorption of energy. Large scale fusion processes involve very high temperatures and densities‚ such as the production of energy from the sun and the shine from stars we see in the night sky. On the
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Table of content P 1………………………………………… Introduction P 1-2…………………………………….. What is the nuclear energy? P 2-3-4………………………………….. Avantages and disadvantages P 4-5……………………………………..Nuclear energy in the US P 5……………………………………….Conclusion P6………………………………………..Citations The nuclear energy While demand for energy continues to rise due the continuous need of energy in developing and developed countries and the fast decrease of natural non renewable sources of energy
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What are the Advantages of Nuclear Energy? * Nuclear reactions release a million times more energy‚ as compared to hydro or wind energy. Hence‚ a large amount of electricity can be generated. Presently‚ 12-18% of the world’s electricity is generated through nuclear energy. * The biggest advantage of nuclear energy is that there is no release of greenhouse gases (carbon dioxide‚ methane‚ ozone‚ chlorofluorocarbon) during nuclear reaction. The greenhouse gases are a major threat in the
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What can make the world go boom‚ nuclear fission? While nuclear fission has been used as a bomb in the events of Hiroshima it has been used now to produce 40 million kilowatts of energy per day for every ton of uranium. Nuclear fission is when a heavy nucleus disintegrates into two nuclei approximately equal sizes. In the beginning of our understanding of nuclear fission‚ fission was first used and discovered by two German physicists Lise Meitner and Otto Frisch‚ in 1939. However‚ they were not
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TECHNOLOGY CREATES VERY LESS PROBLEMS- DEBATE “ANY SUFICIENTLLY ADVANCED TECHNOLOGY IS INDISTINGUISHABLE FROM MAGIC” SAID SIR ARTHUR C.CLARKE.YES IT IS TRUE MY FRIENDS.IF TECHNOLOGY WE USE IS ABSOLUTELY ADVANCED AND SUFFICIENT THEN IT FEELS IKE IT IS MAGIC.FOR EXAMPLE INTERNET.INTERNET-A FAST TECHNOLOGY IN WHICH A PERSON CAN DO ANYTHING SITTING IN ANY PLACE OF THE WORLD.THEY CAN AT ANY TIME SEARCH FOR INFORMATION ON ANYTHING. WHEN WE SAY ABOUT TECHNOLOGY WE AT FIRST THINK OF CELL PHONES OR MICROWAVES
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Together nuclear power plants and hydroelectric dams provide about 50% of the power generated for the United States doing so in a clean and efficient manner. Both systems have their ups and down‚ radiation and disrupting ecosystems for example‚ but their benefits far outweigh the small risks and problems they create. We have progressed in leaps and bounds in power development making these two much safer and efficient than most other ways to generate electricity. Hydroelectric dams create a substantial
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