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Your search returned over 400 essays for "radiation"
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The Existence of Radiation - Radiation has existed throughout the entire existence of earth. Scientists did not know about radiation until very recently because radioactive materials look the same as non-radioactive materials. It was not until February of 1896, when a French scientist named Antoine Henri Becquerel did an experiment using naturally fluorescent minerals to study x-ray properties, which were discovered by Wilhelm Roentgen, that scientists became aware of the existence of radioactivity. Becquerel “exposed potassium uranyl sulfate to sunlight, and the uranium-bearing crystals were later exposed” The Discovery of Radioactivity....   [tags: Radiation, FRC, RPD]
:: 5 Works Cited
1178 words
(3.4 pages)
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Nuclear Radiation and Fallout Effects - The Fallout If a nuclear fallout were to occur, the earth would turn into a radiated wasteland. The earth would be essentially non-liveable, but it could be possible to survive. People, with the help of fallout shelters and bunkers, would be able to survive the initial attack and quite possibly live in the shelters until the radiation has dropped to a level in which they can survive. Now, the difference between a nuclear explosion and a convention explosion is that a nuclear explosion can be thousands, or even millions of times more powerful than the largest conventional detonations....   [tags: nuclear fallout, nuclear explosion, radiation]
:: 3 Works Cited
1168 words
(3.3 pages)
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The Process of Adaptive Radiation and Link it to Evolution - Charles Darwin, the father of evolution theories, stated that the intelligence or the strength of specie does not guarantee its survival and the continuation of its genetic line. The individual in a species with the suitable genetic material will continue to exist if sudden changes that require adaptation quickly bloom. These traits, which are not necessarily desirable, allow the individuals that contain them to live on and will be passed on from generation to generation. He describes these individuals as being ‘responsive to change’ because he sees them as the most sensitive to disturbances....   [tags: evolution theory, radiation, charles darwin]
:: 11 Works Cited
2695 words
(7.7 pages)
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Duties That Radiation Technologist Perform - Have you ever considered being a Radiation Technologist. Their primary job is to take x-rays and to help read and clarify the x-rays as well. They perform other duties such as cat scans, ultrasounds, and radiation therapy. Radiation technologists have specific duties and, if a person is really great in a certain area, you can specialize in that area , this is called occupational specialties. Radiation technologists must pay attention to detail and have exceptional communication skills. There are many educational and training opportunities available to those that are interested in the field of radiation technologist....   [tags: x-rays, cat scans, ultrasounds]
:: 4 Works Cited
1466 words
(4.2 pages)
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Effects of Ultra Violet Radiation - Introduction During our studies in Biology lab, we have learned about Ultra Violet Radiation; the uses and harms that this radiation emits controlled and uncontrolled. One study was in the Noble paper that studied the effects of Ultra Violet radiation on seed growth and germination with the thought in minds how the increase of global Ultra Violet radiation may affect plants growth and germination. This scientific experiment is similar to the Noble paper study but differentiates in that this experiment will document the effects of gamma radiation on radish seeds in germination and on overall growth of the seeds....   [tags: Biology] 775 words
(2.2 pages)
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Radiation - Types of radiation Stable/unstable isotopes: Unstable if the atomic number is greater than 83 or if the ratio of neutrons to protons places it outside the zone of stability (1:1.3 – 1:1.5). Alpha: Ionizing radiation emitted by some substances undergoing radioactive decay. It is in fact a helium nucleus with a +2 charge. It is formed when the ratio of neutrons to protons in the nucleus is too low which causes the element to be in an unstable energy state. Alpha radiation is unable to penetrate paper as shown in the diagram....   [tags: Science, Chemistry]
:: 12 Works Cited
2024 words
(5.8 pages)
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A guide to radiation exposure - The effects of radiation can be hazardous to any part of the human body. In this guide I will explain the advantages, and disadvantages of x-ray radiation. I will also discuss the technological advances that we have today then of what we had the past on the human body during radiation exposure. I will explain preventions of exposure and safety precautions that we as dental assistants as well as patients can follow to stay safe. The X-Ray was invented in 1895 by Wilhelm Conrad Roentgen. It all started with a vacuum tube called a Crookes tube, with this Roentgen noticed that by pressing a button that activated an electric current through it a shadow was projected onto a screen that showed the...   [tags: environment, x-ray]
:: 6 Works Cited
1088 words
(3.1 pages)
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UV Radiation on Organisms - This project is significant because it could help bring about a better understanding of, how UV wave lengths affect the people and the hole in the ozone layer. By determining the effects of UV on Artemia Salina we come closer to alleviating the effects of UV radiation on organisms. In the future this could lead to better UV protection technology. IV: UV exposure in seconds DV: Mortality Rate DV2: Growth Rate it mm/day H1=the UV radiation will kill more Shrimp the longer they are exposed to it....   [tags: Research Analysis] 862 words
(2.5 pages)
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Utra Violet Radiation - Protection against solar UV radiations in organisms includes production of secondary metabolites such as pigments that can absorb UV and visible light. In this study, vioA gene coding for tryptophan 2-monooxygenase involved in the biosynthetic pathway of violacein-like purple violet pigment (PVP) was cloned and sequenced from an Antarctic bacterium Janthinobacterium sp. Ant5-2. A non-pigmented vioA mutant strain was obtained following mini-Tn10 transposon mutagenesis that produced a lesser amount of extrapolymeric substances (EPS) and exhibited a compromised survival to freeze-thaw cycles at 4˚C....   [tags: Environment, Purple Violet Pigment, Photons] 2749 words
(7.9 pages)
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radiation safety manual - The objective of this manual is to educate the dental office staff on the basics of radiography, radiation equipment, “ALARA,” infection control, film and film processing. The information provided will help reduce the patients and staffs exposure to radiation in a dental office setting. First of all I’d like to start with an overview of radiography. Radiography is the process of an image being created on a film or digital receiver by way of radiation exposure. This radiograph allows the dental team to view and diagnose the images in hopes of providing the patient with the appropriate oral health care....   [tags: Radiographic Machines, Bodily Fluids]
:: 3 Works Cited
1369 words
(3.9 pages)
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Black Body Radiation - At the beginning of the 20th century Quantum Mechanics theory was established. It starts with the discovery of electromagnetic [EM] energy quantization by Max Plank (1900) [1] needed to explain black body radiation distribution as a function of frequency and temperature. He explained it by a model where resonators (latter identified as harmonic oscillators) can emit radiation only by quanta of energy. Later Bohr [2] found the Quantum Mechanical model for the Hydrogen atom, using Planck’s constant as a measure for angular momentum quantization....   [tags: Physics] 881 words
(2.5 pages)
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Radiation Pressure Effect on Polymerization Reactions - A laser trap, or an optical trap, is created by tightly focusing a laser beam with an objective lens of high numerical aperture (NA).1 The trap is formed at the focal point of the objective, which is able to hold a small particle at its center. In other words, a dielectric particle near the focus will experience a force due to the transfer of momentum from the scattering of incident photons. The resulting optical force has two components: a scattering force in the direction of light propagation and a gradient force in the direction of the spatial light gradient....   [tags: Laser Beams, Chemistry, Molecules]
:: 16 Works Cited
2123 words
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Radiation-Induced Bystander Effect (RIBE) - Background: Radiation-induced bystander effect (RIBE) is defined as a phenomenon that occurs when radiation signals are transmitted from irradiated cells to non-irradiated ones, inducing radiation effects in them. RIBE has an effective role in radiation response at low doses as well as in radiotherapy due to affecting normal tissues adjacent or far from the irradiated tumor. Reactive oxygen species have an important role in RIBE induction; therefore, the present research was conducted to investigate the possible inhibitory effects of garlic as an antioxidant-containing plant on RIBE....   [tags: cells, gamma rays, medicinal herb, garlic]
:: 26 Works Cited
1542 words
(4.4 pages)
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The Different Types of Radiation - The Different Types of Radiation There are four types radiation: alpha radiation, beta radiation, and gamma radiation. Neutron radiation is also encountered in nuclear power plants and high-altitude flight and emitted from some industrial radioactive sources. [IMAGE][IMAGE][IMAGE]Alpha Radiation Alpha radiation is a heavy, very short-range particle, and actually an ejected helium nucleus. Alpha radiation is not able to penetrate human skin, but Alpha-emitting materials can be harmful to humans if the materials are inhaled, swallowed, or absorbed through open wounds....   [tags: Papers] 383 words
(1.1 pages)
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Effects of Radiation Therapy and Chemotherapy - Effects of Radiation Therapy and Chemotherapy Throughout the years of my life, I have had to deal with people that I love dearly suffer from cancer. When I was 10 years old, I lost my father to cancer. It was a devastating blow to my life, even though I was young and didn’t really understand what was going on, the impact that it played made on me, made me think what was the point of living. As time went on many people that played a special role in my life died of cancer, and many survived and fought the dangerous disease....   [tags: Essays Papers] 1890 words
(5.4 pages)
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The Atomic Bomb and Radiation - The Atomic Bomb and Radiation Radiation as a carcinogen was first established in December 1895 after Roentgen’s discovery of X-rays. In 1902, the first radiation induced cancer was reported emerging from an ulcerated area of the skin. By 1911, a large number of these such skin cancers were reported as well as the first report of leukemia occurring in five radiation workers (Little 2000). Following these discoveries, large-scale tumor induction studies were carried out in animal models over the following 30 years....   [tags: Weapons Health Science Papers]
:: 5 Works Cited
2396 words
(6.8 pages)
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Cell Phone Radiation May Help Alzheimer's Disease - Every 71 seconds in this country, someone is diagnosed with Alzheimer's disease and in a startling new report out today from the Alzheimer's Association, predicts that one out of every eight baby boomers-- or almost 10 milllion Americans – is expected to develop this disease, (Mckenzie). The University of South Florida has led a study along with the Alzheimer's Disease Research Center which has abandoned the idea that cell phone radiation is detrimental to our health. The experiment studied the effects of cell phones on Alzheimer's....   [tags: Alzheimer's Disease Essays] 1554 words
(4.4 pages)
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EMF Radiation: Serious Health Hazard for People - Technology changes everything in this world. Our life has become more convenient and more efficiency which benefits by these new technology. But during this time, some people have considered about some risks of these technologies. EMF radiation is one of them. People have argued for a long time that whether EMF radiation really poses health hazard or not. I insist that EMF radiation is harmful for people’s health and particularly to young children. This opinion can be well proved by all the information I have searched and more people should know about this....   [tags: Technology, Electromagnetic Fields] 1257 words
(3.6 pages)
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Organisms: Radiation-Resistant Extremophiles and Their Potential in Biotechnology - Introduction Most organisms on earth are able to live in their habitat under certain conditions. Others are able to live under very extreme conditions like extreme temperatures, pH, salinity, pressure and radiation just to name a few. These organisms are called extremophiles and they are polyphyletic. According to (Singh et al. 2011), microorganisms, but specifically bacteria are especially well adapted for surviving extreme conditions. Lately scientists have become very intrigued by extremophiles because of their biotechnological and commercial value to humans....   [tags: biotechnical, commercial value]
:: 4 Works Cited
1344 words
(3.8 pages)
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Radiation in Cellular Phones - Radiation in Cellular Phones Introduction: The use of cellular phones is an ever-increasing necessity. With this growing usage comes the customer concern of the safety of the product. You see, cellular telephones are known to emit low levels of radiofrequency energy in the microwave range when in use. This is the same type of radiation found in household microwaves. Even more significant, the cellular telephones emit the same type of low level radiofrequency (RF) while in standby mode. This indicates that being exposed to the RF does not require the phone to be in use, just that it is nearby....   [tags: Technology Research Essays] 1247 words
(3.6 pages)
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Uses of Nuclear Radiation - Uses of nuclear radiation Smoke Detectors Smoke alarms contain a weak source made of Americium-241.Alpha particles are emitted from here, which ionise the air, so that the air conducts electricity and a small current flows. If smoke enters the alarm, this absorbs the particles, the current reduces, and the alarm sounds. Thickness Control In paper mills, the thickness of the paper can be controlled by measuring how much beta radiation passes through the paper to a Geiger counter. The counter controls the pressure of the rollers to give the correct thickness....   [tags: essays research papers] 456 words
(1.3 pages)
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Radiation Sterilization - Nuclear and Radioactivity Physics Radiation Sterilization Medical products, such as surgical dressings, sutures, catheters and syringes must be sterilized before they can be used in medical procedures. This is frequently done using radiation. *HOW DOES THIS PROCESS WORK. Radiation sterilization involves exposure of products to gamma radiation from a cobalt-60 source for a predetermined amount of time. The step by step process is such:  Hermetically sealed medical products are packed in cardboard boxes....   [tags: Physics] 990 words
(2.8 pages)
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Infrared Radiation - Infrared Radiation When you go outside on a sunny day, you can feel the heat from the sun on your skin. The heat that you feel has traveled 150 million kilometers from the sun through space by infrared radiation. Radiation with frequencies below the red end of the spectrum is infrared. Infrared is different to convection and conduction because it does not require particles to transfer heat. There are no particles in between the space between earth and the sun, but still the infrared radiation can travel through it....   [tags: Papers] 432 words
(1.2 pages)
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Nuclear Radiation - Nuclear Radiation There are many ways that the movie The Day the Earth Stood Still and the short story “There Will Come Soft Rains” are similar. “There Will Come Soft Rains” by Ray Bradbury is a science fiction story that deals with nuclear radiation and what the future world would be like if there was an atomic bomb. This short story is a good example of what could happen in the future. The Day the Earth Stood Still is a movie that also has the same genre, that it is science fiction. It helps people realize the horror of the use of nuclear weapons....   [tags: essays research papers] 547 words
(1.6 pages)
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Coduction Convection Radiation - Conduction, Convection, and Radiation Heat transfer is the way heat moves through matter to change the temperature of other objects. There are three types of heat transfers, Conduction, Convection, and Radiation. The first kind of heat transfer, conduction, is heat transferring through direct contact of materials. This would be the same thing as a pan on the stove. The heat from the stove touches the pan directly, therefore making the pan hot. The next type of heat transfer is convection....   [tags: essays research papers] 354 words
(1 pages)
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Cell Phone Radiation - Cell Phone Radiation Introduction to Cell Phones Today, cell phones have become widely used among our society. However, there has been some customer concern of human safety concerning the use of cell phones. Cell phones are know to emit low levels of radiofrequency energy in the microwave range while in use and while in the standby mode, which leads to many ethical issues. History It is very interesting to note that a cell phone is actually a radio. However, it is an extremely sophisticated radio....   [tags: Telephones Health Communication Essays] 1487 words
(4.2 pages)
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Effects of Microwave Radiation On The Human Body - Effects of Microwave Radiation On The Human Body I am going to research the effects of microwave radiation on the human body mainly from mobile phones. I am going to collect a wide range of information from a number of reliable and different sources. To research the effects of microwave radiation on the human body I am going to look at five different sources. Firstly I am going to look at the Internet to find two sources of information one from a scientific organisation and one from a mobile phone manufacturer....   [tags: Papers] 1569 words
(4.5 pages)
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Thermionic Emission and Radiation and Half-Lifes - Thermionic Emission and Radiation and Half-Lifes For the write-up section of my coursework I went on a trip to the Kent and Canterbury Hospital in order to look at the application of physics within the field of medicine. I intend to spend time explaining two physics principles which have uses in this scientific field, and illustrate how they are used, either within the diagnosis or treatment of a patient. Two principles: 1. Thermionic emission. 2. Radiation and half-lives....   [tags: Papers] 1187 words
(3.4 pages)
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Radiation Effects from Tsunami in Japan of 11 March 2011 - ... However, a group of 160 Daiichi employees received a great amount of the radiation with the likelihood of undergoing certain health problems (WNN 7). In spite of the success of the immediate evacuation, the migration of the Japanese people from the affected areas had its own consequences that included death of some vulnerable persons. The most social impact to this people is the stigma and fear associated to radiation exposure (WNN 3). The UN report affirms the 2013 WHO report that indicated that the health effect of the Daiichi radiation might be too low to be identified....   [tags: natural disasters, ecological tragedies]
:: 7 Works Cited
1374 words
(3.9 pages)
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Can Electromagnetic Radiation from Mobile Phones Affect Sperm Quality? - Over just the past decade, mobile phones have developed and advanced very quickly. Not only have they increased in technology, but also the number of people who use them has skyrocketed and the importance of mobile phones has become greater than ever all around the world. However, a growing concern for their possible adverse effects on human health has risen up, which has caused a mass of scientific activity to figure out this dilemma (Erogul et al., 2006, p. 840). A possible health effect of electromagnetic radiation from mobile phones is male infertility....   [tags: adverse effect, testosterone, infertility]
:: 17 Works Cited
1044 words
(3 pages)
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X-ray Technique Based on Synchrotron Radiation Used on Silicon Solar Cell - Synchrotron radiation is electromagnetism field radiated by accelerating charge particles. The applications of Synchrotron are in many fields e.g. Nano-science, Molecular science, biology and Magnetism.....etc. There are many techniques which based on synchrotron for instance: x-ray diffraction, infrared microscopy techniques and others yet to be developed [1].In this essay, we will focus on the x-ray technique based on synchrotron radiation used on silicon solar cell. However, the x-ray technique based on synchrotron radiation becomes a strong development in recent years....   [tags: Research Analysis ]
:: 4 Works Cited
1418 words
(4.1 pages)
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The Effect of Increased Ultraviolet Radiation on Marine Ecosystems - The Effect of Increased Ultraviolet Radiation on Marine Ecosystems Abstract Nearly 80 percent of the Earth's surface is covered with water, nearly all of it being in the form of oceans. Therefore, any environmental changes that are sensed on a global scale are certainly expressed in aquatic ecosystems. The purpose of this paper is to explore the nature by which one aspect of the changing environment, ultraviolet radiation, affects the sensitive balance of the oceans. Specifically, the focus will be on the relationship between increasing ultraviolet radiation and the survival of phytoplankton, fish, and other aquatic animals....   [tags: Geology] 906 words
(2.6 pages)
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The Effects of Colours and Radiation on the Rate of Cooling of Tap Water - The Effects of Colours and Radiation on the Rate of Cooling of Tap Water Aim: To investigate radiation and the rate at which it cools ordinary tap water according to the colour of insulation. Apparatus needed: · Several Standard 250ml glass beakers (to be replaced after each test) · A kettle (to heat the water) · A square of bubble-wrap (to sit under the beaker to insulate it from the floor) · A Thermometer · A stopwatch · Safety Goggles (due to handling very hot water) · The materials I will use to encourage radiation are: Silver Foil Black Paper White Paper Method: 1/ After setting the equipment up, as shown....   [tags: Papers] 969 words
(2.8 pages)
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The United Nations Scientific Committee on the Effects of Atomic Radiation: Adapting to the Globalization of Atomic Energy - The 1950s hailed a new era of technological advances and uncertainty, especially in terms of nuclear technology (weapons, power production, and medical advances). As with any new discovery or invention, there were facts about atomic radiation that were not known for sure. Due to the 1945 detonations over Hiroshima and Nagasaki, as well as the results from a few tests, it was obvious that atomic radiation was harmful for overall human health, but many essential details about these risks were unknown....   [tags: politics, nuclear weapons]
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1445 words
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How Heat is Transfered to the Atmosphere - Physics textbooks define heat as the transfer of energy between a system and environment as consequences of different temperatures between them. Heat can be classified into three different types, which are latent heat, specific heat and sensible heat. These three different types of heat energy can be transferred in various ways such as through conduction, convection and radiation. The transfer of heat energy is important as it ensures that proper distribution occurs. Latent heat is defined as the heat energy expended in changing the state of a body without raising its temperature, expressed in calories per gram (a modern dictionary of geography pg 149)....   [tags: convection, radiation, temperature]
:: 7 Works Cited
793 words
(2.3 pages)
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The Discovery of Radioactivity and its Effects - During the 1800’s, the late 1800’s, scientist discovered radioactivity. The study of radio activity became a phenomenon amongst scientist during this time period. With the discovery of new elements polonium and radium by Marie and Pierre Curie, the use of radioactivity to probe the center of an atom, provided the instructions of a nuclear weapon that will kill innocent Japanese, leaving there face disfigured, and permanently changed. The majority of people know of the effect of radioactivity but not how it was discovered and its close relation to physics....   [tags: chemistry, Radiation, Atomic Bomb] 1163 words
(3.3 pages)
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The Chernobyl Nuclear Plant in Ukraine - On April 26, 1986 the entire world’s view of nuclear energy changed forever (Nave Chernobyl, n.d., para. 4). This was because on that day there was a massive explosion at the Chernobyl nuclear plant in Ukraine (part of the USSR at the time). Science can be applied to this event to explain why the plant exploded in the first place. Science can be used to look at how the plant was designed to work versus how it worked at the time of explosion. This event had massive health effects on nearby humans as well as animals and plants in the area....   [tags: radiation, disaster, nuclear power]
:: 7 Works Cited
1005 words
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Skin Deep by Nina Jablonski and George Chaplin - In the article Skin Deep written by Nina Jablonski and George Chaplin, they discuss and look deeper into the diverse differences in skin color. Our skin color has developed over the years to be dark enough to prevent the damaging sunlight that has been harming our skin and the nutrient folate that it carries. At the same time out skin is light enough to receive vitamin D. Anthropologists and geographers have studied and overtime come to the conclusion that distribution of skin color is not random....   [tags: sunlight, melanin, UV radiation]
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563 words
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The Social Impact of the Atomic Bomb - The Social Impact of the Atomic Bomb One of the largest social impacts of the atomic bomb is that the atomic bomb instills fear into people for nuclear explosion and war. Before the first atomic bomb was dropped, a typical war meant that the people feared for casualty, physical pain and loss of love ones. With the new age of the atomic bomb, every coming war has a potential to become a nuclear war, and a nuclear war brings a new type of fear. This new fear is the fear of the end of the world and humankind....   [tags: radiation, fear, survivors]
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1185 words
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Overview of Stereotactic Radiotherapy - At this day in age we are constantly trying to improve the field of medicine in any way that we possibly can. We cherish every birthday and continually try to prolong life. Not only through every field of medicine, especially in terms of cancer. The American Cancer Society is “the official sponsor of birthdays” and is making leaps and bounds in the types of care that cancer patients receive. One of these many breakthroughs is the practice of Stereotactic (Body) Radiotherapy or S(B)RT. SBRT and other radiation therapies have the ability to greatly improve the way that we treat the issue of cancer and the variation of treatment options; however, they have raised the concerns of long term effe...   [tags: medicine, curing cancer, radiation]
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1469 words
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Nuclear Energy -- The Fukushima Disaster - Humans have long been faced with the challenge of finding a sustainable source of energy that will produce enough electricity to maintain the standard of living they have become accustomed to. Burning coal and other fossil fuels was the primary solution before nuclear energy was discovered. It was thought to be much better for the environment because usually there were not dangerous chemicals released into the atmosphere, but concerns have been raised about its health effects. There are two types of nuclear power: fusion and fission....   [tags: fusion, nuclear accidents, radiation]
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1544 words
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The Nuclear Energy Controversy: Finding a Place for the Nuclear Waste - Nuclear waste has a reputation for making law makers and the public uneasy, thus it is difficult to find a site for nuclear waste disposal units. However, creating such sites is necessary to allow nuclear energy to the electricity production forefront in America. In the search for a waste disposal location, companies have been turning toward Native American reservations as the final resting places of the radioactive waste. Multiple tribes have quickly denied companies access to their land, but others have taken advantage of the potentially prosperous opportunity....   [tags: pollution, radiation, environmental issues]
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1865 words
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Why the United States Should Stop Using Nuclear Energy - Nuclear energy is a dangerous source of energy that has cost the United States millions of dollars to in building nuclear plants, working cost and the disposal of nuclear waste. The capital costs of nuclear reactors are greater than those for coal-fired plants and much greater than those for gas-fired plants. There have been a number of incidents in the past that have harmed not only people but also the environment in which we live. The United States needs to put an end to the usage of nuclear energy and develop alternative renewable and efficient sources of generating power preferably solar and wind energy....   [tags: radiation, nuclear waste, uranium]
:: 8 Works Cited
1416 words
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Carbon 11: Properties and Applications - CONTENTS Carbon 11 2 What is Carbon 11? 2 Where is carbon 11 used? 2 Application of 11C tracer 3 Pros and cons of the short Half-life 3 Pros 3 Cons 3 Benefits and risks of the carbon 11 radiotracer 4 Benefits 4 Risks 4 Risks associated with Carbon 11 tracer 4 Rewards associated with Carbon 11 Tracer 5 Comparison 5 Journal critique 5 Authority 5 Accuracy 6 Objectivity 6 Bibliography 7 Appendice 1 8 CARBON 11 WHAT IS CARBON 11. 11C or more commonly known as Carbon 11 is a radioisotope of Carbon (tracer) which gives off gamma rays....   [tags: radiation, physical chemistry]
:: 11 Works Cited
1137 words
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The Risk Factors of Breast Cancer - Breast cancer is the second leading cancer killer among women, after lung cancer (Breast Cancer , 2014). Cancer is a word that puts fear in many people, especially if they have family members who have either died or survived the disease. No one wants to hear that he or she has been diagnosed with any disease, especially cancer. Many women do not take breast cancer serious until they are diagnosed. Sadly, once diagnosed with this epidemic, a person’s life is altered forever. Breast cancer does not discriminate and can happen to anyone at any age....   [tags: radiation, chemotherapy, disease]
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1243 words
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The Chernobyl Nuclear Accident - Chernobyl Nuclear Accident Pripyat a city of 49,000 will soon become a city of none. Chernobyl a city of 14,000 will soon become a city of none. There common denominator, the Chernobyl Nuclear Accident of 1986. An accident that will lose a country $235-billion. An accident that will take the homes and lives once known to many. The Chernobyl Nuclear Accident impacted the Ecosystem in many different ways through the atmosphere, the environment, and the human population. April 26, 1986 scheduled routine Maintenance was getting ready to be conducted at the Chernobyl nuclear plant in Pripyat Ukraine....   [tags: radiation, ecological disasters]
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1254 words
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Dental Practitioner: Dental Radiographs - Dental radiographs are commonly taken to assist dental practitioners for further diagnosis. Dental radiographs are images produced on an image receptor with a passage of high energy electromagnetic radiation and radio waves that penetrates through teeth and it the relating structure (Iannucci, JM & Howerton, LJ 2012).The deliberation of electromagnetic radiation and radio waves raises concerns in regards to how radiation affects cells in the body and the composition of the nucleus. Sue Raye’s dentist requested radiographs for herself and her family, since dental radiographs involves radiosensitive the head and neck tissues area it raises concerns for her and family’s safety....   [tags: radiation, radio waves, images]
:: 14 Works Cited
1289 words
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Wasteform for Low Level Waste - For LLW/ILW, which comprises a wide range of materials, require suitable encapsulant to enclose the waste and act as a matrix for packaging. The choice of encapsulant is not solely dependent on the physical and chemical nature of the waste, there are other factors to be considered. Firstly, the acceptable criteria for immobilisation of radioactivity; the waste form should be able to physically immobilise the radioactivity before closure of GDF. During early post closure phase, it might be advantageous if the wasteform still contributes to the containment of radionuclides....   [tags: radiation, radionuclide, encapsulant]
:: 27 Works Cited
1728 words
(4.9 pages)
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Fukushima: A Nuclear Disaster - ... Not only does the radiation effect the land, but it also effects humans individually in many ways. Since March 2011, the lives of many Japanese people have changed dramatically. Over 150,000 people had to be evicted from the exclusion zones. During the eviction, approximitly 1,600 people lost their lives (Cuttler). Many of those who survived still make mortgage payments on the homes that they do not live in. Equally important, the radiation is effecting human health. Radioactive caesium has been found in spinach, tea leaves, milk, beef, and fresh water fish up to two hundred miles from Fukushima (Yamiguchi)....   [tags: Japan, radiation, earthquake, radioactivity]
:: 4 Works Cited
666 words
(1.9 pages)
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Marie Curie's Inspiring Life - Marie Curie is known for her works with radiation, but her life is inspiring and should be remembered. The beginning of her life set her up to be illustrious, her work in the scientific field was revolutionary, and her works left a lasting effect which opened up gateways to other discoveries, both in and out of the scientific field. She overcame the woman stereotype of that time, and helped pave the way for other scientists. The woman we know as Marie Curie “was born Maria Salomea Sklodowska on 7 November 1867 in central Warsaw Poland,” (Griffith 1)....   [tags: Biography, Radiation, Scientist]
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1021 words
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Developing Future Transportation Needs - Petroleum is the major source of energy that powers all transportation. Petroleum when burned releases harmful chemicals into the air that depletes the ozone. Ozone depletion leads to increased UV radiation on the earth’s surface. In turn, increased radiation levels leads to a greater number of cancerous cells and more deaths. About 3.5 million people get skin cancer in the United States every year (“Skin Cancer Facts”). Radiation, from the sun’s UV rays, also affects plant life, marine ecosystems, and biogeochemical cycles....   [tags: petroleum, chemicals, UV radiation]
:: 7 Works Cited
1167 words
(3.3 pages)
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Fukushima Nuclear Explosion - Living in Fukushima was normal for Kumiko and her family until March 11, 2011. Kumiko, a Japanese woman, her husband, and their daughter Momoe know what it is like. Alex wrote “On March 11, 2011, a magnitude 9.0 earthquake occurred off the coast of Miyagi Prefecture” (Alex, 2013).That earthquake then caused a massive tsunami that struck the coast of Fukushima. The Nuclear Power Plant was on the coast of Fukushima. Because the tsunami struck the plant, the power went out and the workers at the Fukushima Plant were not able to properly shut down the plant....   [tags: environmental disaster, radiation]
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1515 words
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Pediatric Implications of Diagnostic, Interventional, and Therapeutic Radiology - Since the beginning of the propitious world, the core aspect that keeps it thriving is the propensity for people to discover innovations; however, progress of the past is, systematically, detrimental to the future. Not long after the revolutionary invention of the X-ray in the late 19th Century, an unprecedented number of medical examiners noticed (unknown to the time) radiation burns all over their body; decades later, an extraordinary surge in cancer cases had arisen. Perhaps, during the course of these years, scientists and researchers desired to further progress the x-ray (into the immense subsidiaries that are here today), and disregarded any flaws in the apparatus....   [tags: radiation, healthcare, x-ray, invention]
:: 13 Works Cited
2827 words
(8.1 pages)
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Different Sources for Alternative Energy - In order to understand alternative energy sources we must first know what they are. Alternative energy sources can be described as energy that actually won’t pollute as much fossil fuel, in addition to being less harmful to the environment as well as humans, lower in cost, lastly, comes from sources of which we won’t run out of. Alternative energy is not to be confused with renewable energy. Alternative energy is deemed “renewable”, the reason being it comes from energy that is refillable by natural processes upon usage....   [tags: nuclear energy, fossil fuels, radiation]
:: 4 Works Cited
1957 words
(5.6 pages)
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Cell Phones Cause Brain Cancer - After reading this title, I imagine how many people in our generation do not fall under in this category. In today’s world it is hard to go anywhere without seeing someone talking on a cell phone. Even if it’s walking, driving, or playing is the streets, you will be able to see them everywhere. Whether or not someone answering their cell phone is increasing the likelihood of fatal brain cancer, is in question. Apparently in recent years there has been much research completed looking for a solid answer to the question....   [tags: genetic damage, brain tumor, radiation] 1323 words
(3.8 pages)
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Sterilization by Saturated Steam - Title: Sterilization by Saturated Steam Introduction: Sterilization process is done for the complete elimination of all microorganisms that could potentially be a contaminant and lead to occurrences of hazards. (Chi, 1993) Sterilization is a process defined by killing all the living microorganisms that includes bacteria and spores. This process can be done chemically, physically and by means of physiochemical methods. (Soper & Davies, 1990)There are chemicals used in these processes to ensure all microorganisms no longer exist and they are known as sterilizing agents and are called chemisterilants....   [tags: ionizing radiation, filtration, input of gas]
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2171 words
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The Therac-25 Software Disaster - The Therac-25 Software Disaster The Therac-25 is a computerized medical radiation therapy machine for cancer patients. During the time span of June 1985 to January 1987, it was the source of six fatal or near fatal overdoses. These incidents were a result of a combination of factors that can be viewed as unethical actions made through the ranks of hierarchy, from the manufactures to the FDA. The Therac-25 is a medical dual-mode linear accelerator that is used to target the less sensitive cancer cells of patients....   [tags: medical radiation, cancer patients, overdose]
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1284 words
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The Toxicological Consequences of the Chernobyl Accident - The Toxicological Consequences of the Chernobyl Accident Radiation has both beneficial and harmful effects. The most detrimental health effect on humans, is the incidence of cancer, which has been studied. Humans are exposed to radiation more than they realize. They are exposed medically with x-rays, just by being outside with cosmic rays, and by accidents such as at the Chernobyl Nuclear Power Plant. Exposure to radiation is high and more studies are done which improve radiation protection. The Chernobyl disaster is one such example in which the studies done had implications in the future of radiation protection....   [tags: Cancer Radiation Papers]
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The Negative Effects of Tanning Beds - Well-known magazines often have broad headlines that show off celebrities sporting bronzed skin, and these articles often throw around the words “healthy” and “glowy” in a positive context. With this influence subjected upon the general public, indoor tanning has become a popular recreation of American men and women alike. As this new trend continues to rise, medical researchers are beginning to pay close attention to the health effects of indoor tanning, especially when referring to tanning beds, respectively....   [tags: bronzed skin, utra violet radiation, cancer]
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1015 words
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Nuclear Weaponry - Dexter Gordon once said, “In nuclear war all men are cremated equal”. Since the era when the first bow and arrow was created, humanity has been treading on the fine path of incessant vehemence. There are a countless number of reasons why people participate in altercations, from petty issues such as who lost the keys to more momentous disagreements such as those of Civil Rights or rightful independence. Today in the 21st century, not only have the disagreements evolved but so has the artillery that is used for defense and offense during a battle....   [tags: radiation, cancer, mental retardation]
:: 4 Works Cited
1083 words
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Important Discoveries in Chemistry - Atomic Theory An important discovery in Chemistry is the Atomic Theory, John Dalton linked invisible atoms. Dalton’s atomic theory was based on the belief that atoms could be dignified by the differences in their masses. He first stated his theory in 1803 at the Royal Institution, the theory had six basic ideas : all matter is composed of atoms, atoms cannot be made or destroyed, all atoms of the same element are identical, and different elements have different types of atoms. Atomic Theory didn’t start with though John Dalton in fact it started with Democritus dating all the way back to about 460 B.C.....   [tags: atomic theory, radiation, Dalton, tracers, atoms]
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1050 words
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Nuclear Energy - The discovery of nuclear energy began in the 1980’s with Rontgen’s discovery of the X-Ray soon after scientists unraveled the structure of the atom and made the discovery that all atoms have neutrons and protons. The last major component o the atom was discovered in 1932 the neutron. Another important discovery was made in 1938 Germany; the Germans were the first to carry out the fission of uranium atoms. The energy that fission created opened the possibility of two things, powerful weapons, and energy for civilian use....   [tags: Radiation, Radioisotopes, Energy]
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1459 words
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Nuclear Energy - Radiation is a form of energy that we can find almost all around us, there are many other types of radiation that exist, some having more energy than others. Although using these materials could present danger if a great deal of exposure is released. Interaction with any exposed radiation can cause a contamination to surrounding or personal property. We use nuclear energy in what we call nuclear reactors, inside of a nuclear reactor the energy is released as heat and then used as electricity, the process that makes this electricity is fission and fusion, during fission an atomic nuclease will split into separate fragments, which will release in a form of heat and radiation....   [tags: Radiation, Nuclear Weapons]
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1053 words
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Nuclear Energy - Uranium was discovered by a German Chemist, Martin Klaproth in the year 1789. The exploration and science of nuclear energy including: atomic radiation, nuclear fission, and atomic change was being experimented with starting in 1895 to 1945. Between 1939 and 1945, most of the focus of nuclear energy was being put forth towards the nuclear bomb. Following nuclear bomb research, in 1945 most efforts were put forth to discovering how to harness this nuclear energy and be able to contain and control for making electricity but also using it for naval advances....   [tags: uranium,natural resources,radiation]
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1724 words
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Nuclear Waste Disposal - Nuclear Waste Disposal As the millenium approaches, we are faced with the problems created by our technological advances. Everyday we are forced to see the results, from acid rain to polluted beaches. But there is one problem in particular that will probably out-live our generation and the generation which has created it. If properly contained and monitored, it has little affect on us and our environment. However, once it is free of it's containment, it is a destructive and deadly force. This problem is nuclear waste....   [tags: Radiation Pollution Papers]
:: 11 Works Cited
4045 words
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Health Promotion for Melanoma - Health Promotion for Melanoma Melanoma is the most dangerous kind of skin cancer, but is almost always curable. When unrepaired DNA damages the skin cells, these cancerous growths develop and activate the mutation process to reproduce quickly and form malignant tumors. They are most frequently developed by ultraviolet (UV) radiation from the sun or tanning beds (The Skin Cancer Foundation, 1979). The most common form of cancer is skin cancer and it accounts for almost half of all cancers. Melanoma accounts for 76,250 out of an estimated three million cases of diagnosed skin cancer per year....   [tags: malignant tumors, skin cancer, uv radiation]
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A Non-Invasive Tool to Evaluate Coronary Arteries - With the development of CT equipment and technology, coronary CT angiography (CCTA) is widely recognized by clinicians as a non-invasive tool to evaluate coronary arteries [1]. Although the improvement of CT technology is followed by a higher diagnostic accuracy of CCTA [2], the contrast medium (CM) injection protocol is relatively simple during CCTA. In the clinical practice, the CM injection protocol with a constant speed and volume is conventionally used, and the body weight tailored CM injection protocol has been reported in only a few literatures [3-5]....   [tags: radiation dosis, medical equipment]
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1356 words
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Parallel Computing: The Graphics Processing Unit - In the age of parallel computing, there has been a consistent growth of cores available on the central processing unit (CPU). However, the “free lunch” is now over and the CPU is facing the end of the easily obtained performance gains from Moore’s Law. Another widely used processing unit, the graphics processing unit (GPU), has also been under the influence of Moore’s Law. Therefore, as the graphical standards demanded by driving markets have consistently risen, the companies that produce the GPU have been able to consistently deliver a product that was capable of meeting these standards....   [tags: IBM, moore's law, radiation]
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Nuclear Waste Disposal - Those who build nuclear power plants without worrying about the waste wager the habitability of the planet ( Spaemann ). For more than fifty years, waste piles from nuclear power plants formed waste mountain that were dangerous to the world. According to the World Nuclear Association, twelve thousand tons of highly radioactive waste are created each year. By the end of 2010, about three hundred thousand tons of highly radioactive waste existed worldwide. In Europe, there are 280 m^3 more waste in interim storage than the year before....   [tags: international policy, environment, radiation]
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1414 words
(4 pages)
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Radiology - Radiology Humanity, constantly learning, growing, and facing more challenges each second of the day. Whether the challenges are mental or purely physical. We have found more efficient, safer, and easier ways of doing the tasks we may face. From moving cargo, to sending information via the Internet. Probably the greatest accomplishments we have made, are in the studies of medicine/treatment. And to be specific, the study of radiology. Radiology, the process of working and viewing inside the human body without breaking the skin....   [tags: Radiation Medical Medicine Essays] 1882 words
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Chernobyl - Chernobyl The accident On April 26, 1986, Soviet's Union Chernobyl nuclear plant exploded letting out a massive amount of radiation that all Russian citizens would debate for years to come. At exactly 1:21 am. on April 26th 1986 in Chernobyl, a city near the Pripiat River the No. 4 reactor exploded and released thirty to forty times the radiation of the Nagasaki and Hiroshima bombing. The exact causes of the explosion are not known, however scientists and researchers, under thorough investigation, have uncovered possible causes to the explosion....   [tags: History Radiation Explosion Essays]
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1657 words
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Uranium Mining - Uranium mining in the United States has been prevalent from after World War II until the 1980’s. Uranium was popularly mined as part of a war effort. Mining of naturally occurring chemical elements takes place all over the world when those materials are found in significant quantities. In nearly everything we use, there is some part of it that has been made from a natural product that has been mined or extracted from the earth. Little do we recognize where the materials from our everyday products originate, or the process in which they were recovered....   [tags: pollution, environmental degradation, radiation]
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3112 words
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longterm nuclear effects - When a nuclear weapon is detonated the energy of the blast is transferred to the surrounding environment in three forms: blast, thermal radiation, and nuclear radiation. When a nuclear weapon is detonated the energy of the blast is transferred to the surrounding environment in three forms: blast, thermal radiation, and nuclear radiation. When a nuclear weapon is detonated the energy of the blast is transferred to the surrounding environment in three forms: blast, thermal radiation, and nuclear radiation....   [tags: essays research papers] 364 words
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Nuclear Energy: Are the Benefits Worth the Risk? - Nuclear energy has, for some time, been a controversial issue. With incidents like that of Chernobyl, Three Mile Island, and the more recent complications caused by the earthquake and tsunami Fukushima reactors in Japan, concern about the safety of nuclear energy has become a major issue. A lot of this concern probably exists because of a lack of information and education about both radiation and its effects. It is my belief that nuclear power is no less safe than any other form of energy generation, and can produce significant amounts of power....   [tags: Energy ]
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1349 words
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Radioactive Sickness - Causative Agent: A total body exposure of one hundred roentgens of radiation will cause radiation sickness. Although certain medical devices will give you exposure to radiation, the grays of radiation are miniscule and will not cause radiation sickness. There are a few sources that can lead to a high enough exposure of roentgens of radiation. One of these sources involves accidents or attacks involving nuclear facilities. The other has to do with accidents or being the target of radioactive or nuclear weapons and devices, this includes the use of a conventional explosive device that disperses radioactive material, known as a dirty bomb....   [tags: Medical Research]
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Type of Solar Collectors - ... ⦁ The constructional details of a simple flat plate collector are shown in Fig. 1.2. Construction of flat plate collector Basic elements of a flat plate collector: ⦁ Transparent cover (one or two sheets) of glass or radiation transmitting plastic film. ⦁ Blackened absorber plate usually of copper, aluminium or steel, typically 1-2mm thick. ⦁ Tubes (typically 1-2 cm DIA.), passages or channels, in thermal contact with the absorber plate or connected to it. ⦁ Thermal insulation usually of fiberglass or expended polystyrene, typically 5-10cm in thickness is provided at the back and sides to minimize the heat losses....   [tags: Solar Collectors] 814 words
(2.3 pages)
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The Chernobyl Accident-An Epidemiological Perspective - INTRODUCTION The world’s worst nuclear accident happened on April 26, 1986. States of Belarus, the Russian Federation and Ukraine has under gone many number of studies of the health effects of radiation from the Chernobyl accident have been conducted in the last 25 years. The main purpose of this report is to analyse the health effects from the invisible radiation. The studies have proven important links between radiation and cancer particularly in relation to the risk of thyroid tumours from exposure to high level radiation....   [tags: Health ]
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1510 words
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The Physics Behind Remote Sensing - Remote Sensing is the science of acquiring, processing and interpreting images that record the interaction between the electromagnetic energy and matter (Sabins, 1997). Remote sensing offers extensive applications in almost every area of science from monitoring forest fires to geologic mapping . Although many aspects of remote sensing are complex and difficult to understand the basic theory behind remote sensing is simple physics. There are four major stages of remote sensing. The first stage is the source of energy, usually the sun, which sends energy to a target....   [tags: Physics] 1142 words
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How is Cancer created and Breast Cancer Analysis - Our Bodies seem to amaze us with what they are capable of. Birth till death, our lives are a continuous cycle. The life of a cancer cell amazes me from where it begins and where it ends off. In breast cancer, the cancer cell is much more fascinating.What causes the cells to start their cancerous cycle.The factors that cause the activation of dormant cancer cells are, radiation, health, lifestyle and genetics. Our bodies are the holders of over 60-90 trillion cells. Once a cells dies out, a new one is born; using the process of mitosis....   [tags: cancer cells, cancerous cycle, mitosis]
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(4 pages)
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Comparative Study of SAR from Mobile Phones With and Without Headset - Abstract— Mobile phone have become the most commonly used electronic gadget. A world without mobile phone is now almost unimaginable. The radiofrequency signals produced by mobile phones are transferred as electromagnetic radiation (EMR). EMR has the ability to penetrate through semi solid substances especially human body's tissues and caused dielectric heating. This effect can be classified as thermal and non thermal radiation. The skin near ear skull region is very thin compare to other part of human body....   [tags: Technology]
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