ABSTRACT The effect of different levels of radiation was determined using four set-ups-10kR‚ 30kR‚ 50 kR‚ and the control (no radiation). The four set-ups were observed for nine weeks and growth (in cm)‚ germination‚ and survival rate was measured. Results showed that at the right level of radiation level (10 kR)‚ radiation have a positive effect on the plant growth and has the same germination and survival rate from the control set up. The 30 kR set up and 50 kR set up are relatively smaller
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Light Absorption by Photosynthetic Pigments in Silver Beet Abstract The aim of the experiment was to determine the absorption of differing wavelengths of light by individual pigments in the vegetable silver beet. Pigments were extracted from silver beet leaves and separated into chlorophyll a‚ chlorophyll b‚ and carotene via chromatographs. Chlorophylls were then separated and an absorption spectra created using results obtained from a spectrophotometer. It was clear there were two distinct peaks
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It’s all around us. Radiation is categorized into two groups: ionizing‚ and non-ionizing. Ionizing radiation consists of particles‚ gamma rays‚ or X-rays with sufficient energy to create ionization in the medium it passes through. It has enough energy so that while an interaction with an atom takes place it can withdraw tightly bound electrons from an atom‚ thus making the atom charged or ionized. It includes alpha particles‚ beta particles‚ and gamma rays. Ionizing radiation has made a large impact
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Cosmic Microwave Background Radiation The Big Bang theory predicts that the early universe was a very hot place and that as it expands‚ the gas within it cools. Thus the universe should be filled with radiation that is literally the remnant heat left over from the Big Bang‚ called the “cosmic microwave background radiation”‚ or CMB. The CMB is an almost-uniform background of radio waves that fill the universe. The CMB is‚ in effect‚ the leftover heat of the Big Bang itself - it was released when
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The Cosmic Microwave Background Radiation Perhaps the most conclusive (and certainly among the most carefully examined) piece of evidence for the Big Bang is the existence of an isotropic radiation bath that permeates the entire Universe known as the "cosmic microwave background" (CMB). The word "isotropic" means the same in all directions; the degree of anisotropy of the CMB is about one part in a thousand. In 1965‚ two young radio astronomers‚ Arno Penzias and Robert Wilson‚ almost accidentally
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Cell Tower Radiation on Human Body Neha Kumar (Director‚ WILCOM Technologies Pvt. Ltd.) Prof. Girish Kumar (I.I.T Bombay) ISMOT- 2009 OBJECTIVE Radiation measurements near the cell towers EMF exposure Safety norms Review Biological effects (far below current standards) Radiation Shield (reduce Radiation levels) Electromagnetic Radiations Radiation emitted from Cell Phones‚ Cell phone towers‚ Wi-Fi‚ TV and FM towers‚ microwave ovens‚ etc are called Electromagnetic radiations and are known
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Animation types: AVI format uninterrupted sound film /MOV‚ H.264 stereo (PCM) Animation Audio: external PCM stereo /radio with mono microphone‚ support external stereo radio Signal Converter: - 12-bit /14-bit Noise Cancellation: Support/ Support long exposure NR Anti-Shake function: Sensor-Shift/ no LENS SPECIFICATIONS Lens Specifications Lens combinations: lens depending on the lens/ depending on the lens Lens focal length: depending on the lens /depending on the lens Zoom capability: depending
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from hazard of x- radiation while they are working in wards or in the Radiology Department? Introduction This research is concerned with x-radiation protection for the pediatric staff nurses while they are taken care for pediatric patient in Salmaniya Medical Complex wards and as well as in radiology department. The authors are trying to learn how the staff is exposed x-radiation exposure‚ what the risks are and what are the best methods to protect themselves from x-radiation hazard? Staff
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campus: tall male‚ dressed in a suite‚ with a charming personality. Knowing he was a Hispanic author I felt like I would be exposed to nothing new during his readings or presence for that matter ( seeing as how being from Colombia and have had a lot of exposure to Hispanic authors). This immediately changed as a couple classmates and I got together to walk over to Sorenson Hall‚ and‚ as I we were walking to the auditorium‚ found multiple students heading to the same even but not because their curriculum
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Exposure Mode Chart Icon/Letter Name What It Does Do This This exposure mode makes the background out-of-focus‚ if it’s possible to do so. This eliminates distracting backgrounds‚ and can make the subject stand out from the background. The lens opening (aka f/stop or aperture) is the iris-like opening in the lens. When using this exposure mode‚ Head Portrait the camera selects a large lens opening‚ such as f/4. A large lens opening has a large opening‚ but the number is small. For example‚ f/4
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