destroyed due to the exposure to ultraviolet radiation as we all know. When the immune cells are destroyed or damaged too in this process of cell destruction‚ the immune function of cells in that area of the skin is also destroyed which basically suppresses the immune system of the individual. Also‚ Mr immune system has a soft spot for every part of an individual’s body and the skin is not an exception; when you get sunburn from tanning or overexposure to ultraviolet radiation‚ the immune system tries
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Quantum physics: The photoelectric effect What is the photoelectric effect? The photoelectric effect is when a clean metal surface emits electrons after light‚ especially ultraviolet‚ has been shone on at it. This happens because of a process called photoelectric emission whereby a single photon package of electromagnetic energy‚ called a quantum‚ is absorbed by metal surfaces. This energy is then transferred to one single electron which can then be released by the metal and that released electron
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problem presently facing the world. The ozone layer protects humans‚ animals‚ and plants from harmful ultraviolet rays. Money and time are being spent on ozone repair‚ but the problem still exists. The ozone layer is a region of the stratosphere containing ozone‚ or O3 gas. The ozone layer is necessary to both plant and animal life on earth because it protects the surface from dangerous ultraviolet light. However‚ manufacturing and household chemicals that are currently in use have been found
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reactions were violet‚ hence the term ultraviolet. ("History of ultraviolet‚" 2014) 1887 – Heinrich Hertz‚ a German physicists conducted many experiments based on James Clerk Maxwell’s theory that electrical fields and magnetic fields can bond together to form electromagnetic waves. Maxwell
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EXPERIMENT I Photoreduction of Benzophenone Introduction The study of chemical reactions‚ isomerizations and physical behavior that may occur under the influence of visible and/or ultraviolet light is called Photochemistry. The fundamental principles for understanding photochemical transformations are that light must be absorbed by a compound in order for a photochemical reaction to take place‚ and that for each photon of light absorbed by a chemical system only one molecule is activated for
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Vitiligo Vitiligo is a skin condition‚ and sometimes is referred to as the Michael Jackson Disease. It is a skin condition in which there is a loss of pigment from areas of skin. That then results in irregular white patches of skin. Vitiligo occurs when the melanin forming cells‚ also called melanocytes fail to produce melanin. Melanin is the dark pigment that is in the epidermis that gives us our skin color. When the melanocytes fail to produce melanin‚ white patches of skin appear on the skin
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Water Treatment Plant Process- Chlorination or Ultraviolet Radiation By Shreya Shah Surface waters necessitate water treatment before consumption to guarantee no health risk is present to the user. Poor quality water which consists of dissolved and suspended particles‚ can impact and cause health risks to consumers. The most important contamination is the microbiological contamination as it leads to infectious diseases (Water Treatment‚ 1994). Chemicals such as nitrates and cyanide when contaminate
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following correctly orders the different categories of electromagnetic radiation? a) gamma rays‚ X rays‚ visible light‚ ultraviolet‚ infrared‚ radio b) visible light‚ infrared‚ X rays‚ ultraviolet‚ gamma rays‚ radio c) radio‚ infrared‚ visible light‚ ultraviolet‚ X rays‚ gamma rays d) infrared‚ visible light‚ ultraviolet‚ X rays‚ gamma rays‚ radio e) radio‚ X rays‚ visible light‚ ultraviolet‚ infrared‚ gamma rays 5. Evidence of the expansion of the universe is shown by a) the Einstein Cross b) the 4.5 billion
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as I go on my research I found out that‚ in moving from the water to the land‚ several living creatures had to subdue the number of problems. It must include the fortification against reproduction‚ fluid and nutrient transport‚ desiccation and ultraviolet radiation. So plants started from algae‚ it has been found in a long time photosynthesizing bacteria could have formed thins mats or stream turbulence to keep the ground wet. The first plants did not have a soil. Some early plants had branching
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depletion of ozone levels has been recorded around the globe. With less ozone in the atmosphere‚ more ultraviolet radiation strikes Earth‚ causing more skin cancer‚ eye damage‚ and possible harm to crops. The main causes of ozone depletion are chlorofluorocarbons (CFC ’s)‚ such as coolants‚ aerosols‚ and fire extinguishers. When CFC ’s are released‚ they rise into the ozone layer. The UV (ultraviolet) radiation then releases chlorine from the CFC ’s. Chlorine is a chemical that disintegrates the
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