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Your search returned over 400 essays for "radiation"
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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]
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2024 words
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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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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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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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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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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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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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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]
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2396 words
(6.8 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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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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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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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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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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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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Informative Essay: 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: Informative Essay] 1554 words
(4.4 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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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 ]
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1418 words
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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 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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Nuclear Energy - ... After the fuel has been used up the waste is then collected and then recycled so it can then again be used as more energy. The waste is controlled by the NRC, the agency is in agreement with 32 states to allow and manage the waste of nuclear energy. During the process of recycling the radioactive materials go through a process called radioactive decay. And radioactive decay is when the nuclease of a radioactive material releases its energy the reasons this happens is because the radioactive nuclei is unstable and is constantly changing because it’s always trying to stable its self....   [tags: Radiation, Nuclear Weapons]
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1053 words
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Nuclear Energy - ... One of the meltdowns was contained without any harm to anyone in the surrounding vicinity. The second was involved in an intense fire and had no provision for containment. And the third severely tested the containment allowing only a small amount of radioactivity to escape. “These are the only major accidents to have occurred in over 14,400 cumulative reactor-years of commercial operation in 32 countries”. Also the risk of western nuclear power plants in the terms of consequences of any accident or terrorist attacks are small when you compare them with some of the other more commonly accepted risks involved with a nuclear power plant....   [tags: Radiation, Radioisotopes, Energy]
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1459 words
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Pediatric Implications of Diagnostic, Interventional, and Therapeutic Radiology - ... Once the catheter reaches the desired location in the heart, the cardiac catheterization procedure is complete and the radiologic technologist will take a coronary angiogram (Baerlocher 132-135). The radiologist will then inject dye through the catheter into the heart, allowing him to make a diagnosis (Choy 88). Whether the patient has blocked arteries or a malformation in the heart, the intervention team will attempt to resolve the issue; for example, in the case of a heart attack, the radiologist will use a balloon, attached to the catheter, to open the vessel and insert a stent to keep it open (Choy 88)....   [tags: radiation, healthcare, x-ray, invention]
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2827 words
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The United Nations Scientific Committee on the Effects of Atomic Radiation: Adapting to the Globalization of Atomic Energy - ... These two poles were (understandably) not sharing their full capabilities/knowledge. However, this developed into a game of nuclear posturing (through tests), proxy wars, and general Cold War tensions. Iteration was also failing because law-making institutions had no way to know if the treaties they wanted to draft would even help prevent any more escalation or decrease any damage done to the environment during these tests. Added to this situation was what Kenneth Oye would term a “numbers problem.”2 However, this specific numbers problem is a bit more complicated and must be examined differently from Oye’s original statements....   [tags: politics, nuclear weapons]
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1445 words
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Cell Phones Cause Brain Cancer - ... Explicit Conclusion: Therefore, there is no definitive link or evidence between cell phone usage and brain cancer. Conclusively, 1. As a result, of David Reynard’s wife tragic brain tumor, previous studies had led him to believe cell phone usage and other suspected carcinogens cause the brain cancer. In most cases, The most exquisite — and arguably the most sensitive — means to identify a carcinogen is to study the effects of the substance not on humans or animals but on cells. In the 1970s, a Berkeley biochemist named Bruce Ames devised a cellular test to do just that....   [tags: genetic damage, brain tumor, radiation] 1323 words
(3.8 pages)
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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]
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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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4365 words
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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
(5.4 pages)
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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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Important Discoveries in Chemistry - ... This rearranged the periodic table based on atomic number instead of atomic mass. In 1922 Bohr had an explanation of atomic structure that underlines the periodic structure. His atomic model had atoms build with orbital shells. In 1931 James Chadwick found that the nucleus didn’t just hold protons it also held neutrons, he discovered this using alpha particles. All twelve men above played their part in how we study atoms today. For 460 B.C. to 1932 the added and better explained the atomic theory....   [tags: atomic theory, radiation, Dalton, tracers, atoms]
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1050 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
(1 pages)
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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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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]
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1142 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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The Electromagnetic Spectrum - PART 1 The Electromagnetic Spectrum is the range of frequencies of possible electromagnetic radiation. The Spectrum ranges from 0 Hertz up to 2.4x1023 Hertz. The exact wavelength limits of the Spectrum are unknown however it is widely believed that the short wavelength limit is equal to the Planck Length (1.616x10-35m) and the long wavelength limit is the length of the Universe. Electromagnetic radiation (EMR) is an occurrence that takes the form of self-propagating waves produced by the motion of electrically charged particles, which can move through matter or a vacuum....   [tags: Physics]
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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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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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Are Cell Phones Truly Safe? - In today’s society, the most popular electronic device is cell phones. From the 1940’s to 2011, cell phones have come a long way, from its capability to help individuals to keep in touch with friends and loved ones from near and far. Now and days we use them to text, im (instant message) a person, browse the internet, take pictures, email, and even transfer data. It’s amazing how far we have gotten with a device as such, fulfilling majority of our everyday needs. But can it also be putting user’s lives in a high risk of danger....   [tags: Technology ]
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The Causes of Cancer - The Causes of Cancer Cancer is the number one killer in America today.We can say the known causes of cancer are radiation,sunlight,pollution,cigarette smokingand improper diets.I will explain the major causes of cancer,but before I proceed let me define the term "cancer."To be defined cancer is an abnormal,uncontrolled growth of cells that can spread beyond their natural boundaries to other parts of the body.Cancers can develop in numerous parts of the body. The importance of radiation as a cause of cancer has been recognized for many years.Exposure to toxic levels of radiation produces genetic damage,and since the genes control cell behavior this can lead either to cancer or cell death,depending upon the dose.the most common type of cancer which is caused by radiation is known as leukemia.Another type of cancer caused by raidiation is ,cancer of the white blood cells....   [tags: Papers] 314 words
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Nuclear Weapons and Its Negative Effects on Human Beings and Environment - Nuclear weapons and its negative effects on human beings and environment Technologies and inventions have brought diverse effects in human beings. We have seen many examples throughout the history. Humongous inventions have made our life very easy for survival. We are still searching the best way to make ourselves in that situation where we get hundred percent satisfactions. However, people have started ruining the world by using devastating weapons to defeat and lead to the world in their possession....   [tags: Environment ]
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Fluoroscopy - The discovery of fluoroscopy has revolutionised the means physicians view the functions within the body of the patient in order to diagnose and treat (Martin & Harbison, 2006). Although there are many instances where fluoroscopy can be used to benefit patients by providing them with accurate diagnoses, each procedure has risks involved. Fluoroscopic injuries became apparent abruptly after the discovery of x-rays by Roentgen. With time physicians and researchers learned how to efficiently design equipment in order to protect themselves as well as patients against radiation (Balter, 2001)....   [tags: Health ]
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1143 words
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Nuclear Power - Nuclear Power As our population increases, so will our demand for electricity. Air conditioners, computers, televisions, microwaves, and many other appliances have become necessities for Americans. All methods of producing electricity have drawbacks. As the earth becomes warmer, we must look for ways to decrease our use of fossil fuels. There are several ways to produce electricity without releasing air pollution. The most feasible method at this time is nuclear energy. Nuclear energy presents a safe, clean, and inexpensive alternative to other methods of producing electricity....   [tags: Energy Environmental Papers]
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3304 words
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Pollution Essay: Climate Change - The world is a greenhouse. The role of the atmosphere is to insulate and warm the surface of the earth. The greenhouse effect is not a new phenomenon. Humans can help reduce the increasing greenhouse effect. The atmosphere insulates and warms the surface of the earth. Incoming solar radiation passes through the atmosphere. The surface of the earth absorbs some of the radiation. The unabsorbed radiation is emitted back out in the form of infrared radiation. Gases, such as, carbon dioxide, methane, nitrous oxide, and water vapor absorb the reflected infrared radiation....   [tags: essays research papers, climate change] 337 words
(1 pages)
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The Dangers of Electromagnetic Fields - The dangers of the electromagnetic can be low on danger and high on danger. Depending on the amount of how much the body absorbs verifies the lethality of the EMFs. Humans are extremely sensitive to EMFs. Yes if a person absorbs too much energy it can lead potential to death, but if they absorb small portions it can lead can lead to nausea, paranoia, and many more small affects. The US National Institute for Occupational Safety and Health (NIOSH) has issued cautionary advisories on EMFs. Everyone is exposed to EMFs; they come in forms such as from power lines, basements, cell phones, or even x-rays and other medical equipment....   [tags: Health ] 1048 words
(3 pages)
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The Effects of Tanning - The Effects Of Tanning Some people may not know it, but your risk of developing skin cancer is three times as likely if you use a tanning bed(Lazovich et al 1). You may think that tanning will make you look better or feel better, but the risks far outweigh the benefits. Tanning may cause skin cancer, depression and anxiety, and there is poor public awareness of the risks. To first understand how you get tan or you get sunburnt you have to learn about ultraviolet radiation. Ultraviolet radiation is composed of three different wavelengths: UVA, UVB, and UVC....   [tags: Health, Diseases, Cancer] 1425 words
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Mobile Telephone Masts - Mobile Telephone Masts Abstract Mobile telephones have transformed the telecommunications industry. These devices can be used to make telephone calls from almost anywhere, the explosion in the popularity of having one means that over half of everyone in Britain has one. The increase in the amount of telephones can only have a “knock-on” effect on the amount of mobile telephone masts, and these are considered to be the most dangerous. The media have had a focus on the dangers that mobile telephone masts pose in the long term, and the public are most definitely concerned with the risks involved in having mobile telephone masts near where they live....   [tags: Papers] 474 words
(1.4 pages)
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Skin Cancer in Australia - Skin Cancer in Australia Skin cancer is a significant public health issue in Australia. Exposure to ultraviolet radiation emitted by the sun in the UVA and UVB wavelengths is the primary cause. Australia has been a world leader in efforts to protect the ozone layer, the main line of defense against ultraviolet radiation emitted by the sun. Ultraviolet radiation induces the formation of thymine dimers that cause mutation of skin cells if not repaired before DNA replication. Mutations of tumor suppressor genes can lead to uncontrolled cell growth....   [tags: Medical Health Dermatology Essays]
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3010 words
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Importance of Radiological Technology - When you hear the word radiology, what comes to mind. Do you think of the overbearing effects that radiation can have on the body or perhaps the remarkable usage that comes from it's technology. Most people don't realize how extremely helpful radiation can be, but seldom it can be dreadful. The medical field would not be as productive without the use of radiological technologies. When I say dreadful I mean the damaging consequences on the body that can come from radiation. Technicians who work around radiological equipment, such as -x-ray, CT or even mammograms, usually aren't too exposed to radiation because even though its every day, it's only for a short period of time....   [tags: Medical Technology ]
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1585 words
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Plutonium Discovered more Harmful than Uranium - There is no such thing as a “safe dose” of plutonium. While it was common to think that uranium was the most dangerous element on the periodic table a few decades ago, scientists have now discovered a more lethal element. Plutonium, Pu, element 94 on the periodic table is a transuranic radioactive chemical element; meaning it emits excess energy when it decays. Many previous studies on transuranic elements discovered uranium as the most deadly. Plutonium, recently reviewed by scientists, has also been found to emit alpha radiation, a highly hazardous type which is also emitted by Uranium....   [tags: Scientific Research ]
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821 words
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Global Effects of Ozone Depletion - Global Effects of Ozone Depletion Ozone depletion in the earth’s atmosphere is under constant scrutiny by the American press and people. Perhaps the concern is warranted; the ozone layer protects life on earth by absorbing 97-99% of the damaging ultraviolet radiation from the sun (U.S. Environmental Protection Agency, 2006). Over the past twenty years, the stratospheric ozone has decreased approximately 3% per decade. Possible concerns have been raised about loss of polar caps, DNA damage, increased human health risks, and environmental process disturbance....   [tags: Environment Ozone Layer Essays Papers]
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Radioisotopes and their Medical Uses - ... Not only can radioisotopes be used in imaging to detect and diagnose disease, but they can also be used for medical treatment. Monoclonal antibodies are used to target cancer cells and they often use radioisotopes such as iodine-131(Using Monoclonal Antibodies). Using a radioisotope along with the antibodies can help speed up the process of targeting and killing the cancer cells. This technique can also kill nearby cells that the monoclonal antibody has not landed on, making it an efficient way of killing more cancer cells....   [tags: health, cancer, fusion imaging]
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Computed Tomography and Radionuclide Imaging - ... Unlike CT has the ability to give information about the physiological function of a body system. The radiopharmaceutical often referred to as a nuclide has the ability to emit gamma rays within the body structure for the purpose of imaging so therefore the isotopes have the ability to concentrate where there is an increased metabolic activity. However an important thing that cannot be forgotten in this case is that gamma–rays are emitted from a radioactive source in RNI imaging unlike in CT imaging the x-rays are produced in a vacuum tube....   [tags: Compare and Contrast, Diagnostic Imaging] 991 words
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Radioactive Isotopes - Radioactive Isotopes I never thought nuclear energy would play a role in my life, but that was until two years ago when my family was hit with horrifying news. A close friend of ours was diagnosed with breast cancer. Because of a new technology called radiation therapy or radiotherapy, my mother’s best friend is alive today. Radiotherapy is produced by a form of nuclear energy called radioactive isotopes. The class EGEE 101 has educated me about the subject of nuclear energy, but I wanted to take it a step further and discover how nuclear energy plays a role in medicine....   [tags: Chemistry Atoms Energy Essays]
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Depleting Ozone and Its Effect on Society - Depleting Ozone and Its Effect on Society Is there a reason for us to be concerned. Can ozone depletion really be connected to something that is truly harmful to humans. How are we directly affected by ozone depletion. How much do we actually know about the ozone and the things that are going on in the atmosphere. There are many questions that arise when talking about the ozone depletion in relation to skin cancer. Today both environmentalists and researchers alike focus on the increasingly dangerous affect that ultraviolet radiation has on present day society....   [tags: Environment]
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Chernobyl - Chernobyl The topic I have chosen for this term paper is "Ex-Soviet Bloc's Environmental Crisis, Issue C." #2 Upgrading nuclear reactors to meet international standards. I have chosen this topic because nuclear power is not only an environmental issue but also a severe health issue for the citizens around the nuclear site and also for the rest of the country and world because of food products that could be grown there and used as market items. Nuclear radiation is in no way healthy to anyone....   [tags: essays research papers] 1726 words
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The Atomic Bomb - The Atomic Bomb The aftermath: Humanity, the Earth, Nature Some people often hear the word "Atomic Bomb" or hear about the cities Hiroshima and Nagasaki and picture a war torn city and a bomb that killed many. While they are right in connecting the two, the aftermath of the atomic bomb goes much deeper than that. By simply stating that it killed and injured thousands of people is an understatement. The damage from the bomb ranged from high temperature fires that scorched the land to the killing of fetuses due to in-utero radiation exposure....   [tags: Essays Papers]
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technology - THURSDAY, July 21 (HealthDay News) -- Following surgery, a single dose of the cancer drug carboplatin is just as effective, and less toxic, than the standard three weeks of radiation therapy traditionally used to fight stage 1 seminoma, a form of testicular cancer, British researchers report. In addition, treatment with carboplatin results in the development of fewer new seminomas compared with traditional radiation therapy, according to the report in the July 23 issue of The Lancet. For the past half-century, the standard care for seminoma has been to remove the cancerous testicle, usually followed by three weeks of radiotherapy....   [tags: essays research papers] 546 words
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Think Twice Before You Tan - Nearly 30 million people tan indoors in the United States every year. Of those 30 million, more than one million people are diagnosed with skin cancer according to the Skin Cancer Foundation. Despite that fact hundreds of thousands of people still visit tanning salons today. Skin tone nor age matter when it comes to the chances of getting skin cancer. Of the many causes of skin cancer existing, ultra violet radiation from tanning salons is by far at the top of the list. There are studies linking ultraviolet radiation to the deadliest form of skin cancer....   [tags: Health]
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Nuclear Energy in North America - Nuclear energy, a stable, emission free source of energy and has become a cornerstone for many countries energy needs. There are currently 463 commercial nuclear reactors producing 372,000 MWe in over 30 countries. North America produces 17% of their required energy from nuclear reactors, putting the USA 17th and Canada 21st in the world. Although this seems like a good portion, there are nine countries producing over 40% of their required power from nuclear energy. But why is a heavy energy dependent and environmentally conscious continent of North America producing such little percent of their power from a stable, emission free energy source; the very qualifications that North Americans desire in order to control the green house effect....   [tags: Energy] 1138 words
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X-Rays: From Discovery to Practical Application - X-rays This is a scientific report on x-rays, it’s history, uses, implications and other relevant facts. More relevance will be given to its medical uses/ importance as it was the most beneficial trait that x-rays brought. X-rays were discovered in 1895 when Wilhelm Conrad Röentgen was doing some experiments with electron beams in a gas discharge tube and observed a glow in one of his fluorescent screens whenever the electron beam was on. It was a fact that fluorescent material usually glowed in reaction to magnetic radiation but the gas discharge tube was surrounded by heavy black cardboard which was assumed by Roentgen to block most of the radiation....   [tags: Physics]
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Why did the US Bomb Japan, but not Germany - ... Flash burns from primary heat waves caused most of the casualties to natives. Others were burned after their homes burst into flame, and it caused many house fires. Flying debris caused many injuries like tornadoes. A fire storm of winds followed the detonation at Hiroshima as air was drawn back to the center of the burning area, and as a result, trees were uprooted. The bomb took the lives of around 42,000 people, which includes the people that was still lost, and injured 40,000 more....   [tags: World Politics, War, Little Boy]
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The Validity Of Essiac As a Cure For Breast Cancer - The Validity Of Essiac As a Cure For Breast Cancer Doctors continue to study breast cancer, one of the leading causes of death in women, in attempt to find an all out cure. More and more women are diagnosed with breast cancer each year. In 1995, an estimated 182,000 women in the United States were diagnosed, of which 10% to 15% were already locoregionally advanced (Ames et al, 1996). Breast cancer has been plaguing women since 1600 B.C. where it was treated with such methods as amputation or by burning the lesion (Eberlein, 1994)....   [tags: Biology Health Medicine Essays]
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Dangers of Cell Phones - Although cell phones appear to be harmless devices, they are proven to be detrimental and unsafe to prolonged users. Cell phone users need to be more aware of the potential consequences of improper usage. Mobile phone radiation and health concerns have elevated, especially after the enormous increase in the use of mobile phones. Furthermore, texting while driving is a risk that many individuals take, and could lead to serious, life-threatening consequences. Nevertheless, there are quite a few solutions that may help a cell phone user in preventing the potential consequences of prolonged cell phone use....   [tags: Technology/Health] 599 words
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Does Cell Phone Usage Put One At Risk For Cancer? - A cell phone or mobile (also known handphone, wireless phone, cell, cellular phone, cellular telephone, cell telephone or mobile telephone) is a long-array, electronic device that is been used for mobile telecommunications, data transmission (text messaging or mobile telephony) over a cellular network of particular base station which is known as cell sites. Moreover, the current cell phone offers a lot of services which include SMS for text messaging, packet switching for internet access, email, gaming, infrared, MP3 player, GPS, radio, television, Bluetooth, Camera with a video recorder and MMS for receiving and sending videos and photos....   [tags: Mobile Phones, Telecommunication, Medical] 1024 words
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New Technology in Radiological Monitoring - New Technology The technology that I have selected to discuss is handheld radiological monitoring. There are several new equipment models being marketed. One of the most recognizable and well-respected names in radiological monitoring is Canberra. One of Canberra’s latest offerings for handheld devices is the Radiagem™ 4000. The device provides the capability of monitoring dose rates and contamination levels. There are a variety of probes available for use with the meter itself. The unit is waterproof and lightweight....   [tags: Technology ]
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Nuclear Chemistry - Types of Radiation: • List the three types of Radiation and describe conditions under which each case occurs. Alpha, Beta, Gamma. Alpha radiation/emission - Alpha particles are the nuclei of a Helium atom 42He. Consisting of two protons and two neutrons, positively charged. The nuclei are ejected from heavy, unstable nuclei so as to remove excess protons and neutrons. However, the formed nuclei may still be radioactive in which even further decay will occur. Alpha emissions occur in nuclei with atomic numbers greater than 83....   [tags: Chemistry]
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Ernest Rutherford - Ernest Rutherford Ernest Rutherford was born in New Zealand in 1871 as one of 12 children. It was Rutherford who first "split" an atom and who discovered the atomic "nucleus", a name that he invented. For this he is regarded as the greatest experimental physicist of his time. Rutherford was one of the first and most important researchers in nuclear physics. Soon after the discovery of radioactivity in 1986 by the French physicist Antoine Henri Becquerel, Rutherford discovered the three different types of radiation....   [tags: Papers] 574 words
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The Possible Danger of Mobile Phones to our Health - The Possible Danger of Mobile Phones to our Health Ever since the price of mobile phones dropped, resulting in a huge increase in the number of people owning them, the question has always been asked as to whether they are safe and if they pose a danger to our health. The full results of long-term use on such a huge scale has never been able to be tested, as quite simply they have not been around long enough for the symptoms to make themselves clear. What are the effects of mobile phones and how serious are they....   [tags: Papers] 1807 words
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Effect of Stratospheric Ozone Depletion on Aquatic Ecosystems - The Effect of Stratospheric Ozone Depletion on Aquatic Ecosystems Introduction Throughout the years, advances in technology and scientific development have greatly influenced our global community. Various anthropogenic factors, such as the increased combustion of fossil fuels and widespread usage of manmade chemicals, have greatly affected the planet's atmosphere and it's ozone layer. Ozone Depletion The stratospheric ozone layer is the Earth's natural means of protection from the Sun's damaging ultraviolet rays....   [tags: Geology] 834 words
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Health Risks Related to Cell Phone Use - Health Risks Related to Cell Phone Use Many people have raised the question: "Can cell phones cause brain damage?" The answer, well it depends on who you ask. There have been many studies that have all found various results. There have been studies on humans that were conducted by the Swedish, British, and Americans. There have also been tests conducted on animals. In the U.S., cellular telephones operate in a frequency ranging from about 800 to 2100 megahertz (11). The radiation produced is higher than radios and cordless phones, but lower than that of microwave ovens and radar....   [tags: Expository Essays Research Papers] 473 words
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Leukemia - Leukemia Leukemia is a group of blood diseases characterized by cancer of the blood forming tissues. It was discovered in Europe during the XIX century when a group of doctors directed by John Hughes Bennett tested their patients and discovered their elevated number of white blood cells....   [tags: Papers] 888 words
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Nuclear Power and Testing - Nuclear Power and Testing With the development of nuclear power came a heavy moral debate between scientists and politicians. The government chose to protect its national security and engage in an “arms race,” rather than protecting its citizens. The nuclear testing between 1951-1962 exposed thousands of Utah, Arizona, and Nevada residents (“Downwinders”) to nuclear fallout, resulting in genetic defects, leukemia, and cancer in many of the fallout’s victims. In her 1992 book Refuge, Terry Tempest Williams claims she “cannot prove her mother, Diane Dixon Tempest, or [her] grandmothers, Lettie Romney Dixon and Kathryn Blackett Tempest, along with [her] aunts developed cancer from nuclear fallout in Utah ( Tempest 286,);” however, scientific tests, although hard to conduct in this circumstance, have proved a strong correlation between fallout exposure and cancer within the downwind population....   [tags: Energy Pollution Papers] 2350 words
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The Unknown Dangers of Cell Phones - The Unknown Dangers of Cell Phones When I was sixteen years old, I wanted a cell phone more than anything. Not only did all my friends have them, but my parents did not allow me to talk to my boyfriend Jimmy. So I thought having a cell phone would be the instant solution to all my problems. Not only would I be able to talk to Jimmy whenever I wanted but having a cell phone would give me so much more independence. Not to mention the fact that they were extremely glamorous and simply the thing to have....   [tags: Health Communication Papers] 2567 words
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depletion of the ozone layer - Our Radiant Planet: Depletion of the Ozone Layer Ozone is a relatively unstable form of molecular oxygen containing three oxygen atoms produced when upper-atmosphere oxygen molecules are split by ultra violet light. Stratospheric ozone is found in a broad band, extending generally from 15 to 35km above the earth. Although the ozone layer is surprisingly thin, it acts as a protective shield to the earth, as it filters out most of the harmful solar ultraviolet radiation (in particular UV-B) that would otherwise reach our planets surface....   [tags: essays research papers fc]
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lung cancer - Lung cancer is the most common cancer-related cause of death among men and women. Lung cancer can be undetected for many years causing it to become more dangerous and possibly fatal. There is not cure for lung cancer or any cancer, but if detected in an early stage the lung cancer can be detected, treated, and hopefully terminated. There are many new and developing treatments being tested now that may save lives in the future. Through understanding what the lung cancer is, doctors can easily diagnose and assess cancer patients....   [tags: essays research papers] 1454 words
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Nuclear Weapons: Scars on the earth - Nuclear Weapons: Scars on the Earth Nuclear weapons have a long-lasting and devastating effect on the world for many years after an initial explosion. Fallout from United States atmospheric testing from 1945 to 1963 killed an estimated 70,000 to 800,000 people worldwide. People who have worked in the early nuclear weapons programs have been exposed to significant amounts of radiation (Schwartz 395). When a nuclear weapon goes off, there are four basic types of explosions: air bursts, surface blast, subsurface burst, and high altitude burst....   [tags: essays research papers fc]
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Ozone - Ozone Ozone (O3) is a molecule consisting of three oxygen atoms, similar to the oxygen we breathe (O2), however oxygen consists of only two oxygen atoms. In the stratosphere, a region high up in the upper atmosphere, light rays are responsible for the breaking down of oxygen (O2), breathable oxygen into its two separate oxygen atoms. Lone oxygen atoms are markedly reactive. When a lone oxygen atom comes into contact with a breathable oxygen molecule (O2) it combines to form ozone (O3). The ozone layer is a small residual amount of ozone concentrated in a band in the upper atmosphere....   [tags: Ozone Layer Oxygen Environmental Essays]
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