occurring radioactive elements found in the Earth. We are also exposed to man-made radiation including medical radiation. Nearly half of the radiation in which the US population is exposed to comes from medical sources such as CT scans‚ x-rays‚ and nuclear medicine. In 1899‚ Ernest Rutherford discovered that the radiation emitted by uranium consisted of two kinds of rays: one with weak penetrating power‚ (alpha rays) and another with stronger penetrating power (beta rays). A third and even more penetrating
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NUCLEAR POWER IS NOT THE ANSWER by Helen Caldicott [Editor’s note: The following is the Introduction to Dr. Helen Caldicott’s new book Nuclear Power Is Not the Answer.] “[Nuclear power] is a very important part of our energy policy today in the U.S. . . . America’s electricity is already being provided through the nuclear industry efficiently‚ safely‚ and with no discharge of greenhouse gases or emissions.” —Vice President Cheney in a speech to the Nuclear Energy Institute‚ May 22‚ 2001 “The 103
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The psychometric assessment test I evaluated for this project is the Wonderlic Cognitive Ability Test. This test is a popular intelligence test used to assess the aptitude of prospective employees for learning and problem solving in a range of occupations. A man named Eldon F. Wonderlic originally created the test in 1936 and throughout the years alterations and new versions of the test have been created. The test is actually quite simple; the participant is required to answer 50 multiple-choice
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cation and anion analysis is that in anion analysis‚ a series of separations of the ions from one another is usually not the most efficient way to determine their presence. Instead‚ only some separations will be made‚ and the initial test solution will be used to test many of the ions. Refer to the flow chart at the end of the experimental directions as you proceed. First you will prepare and analyze a “known” solution which contains all six of the anions. Then you will analyze an “unknown” solution
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Biruiet Test: Procedure Instead of the Biuret Reagent‚ the following may be used: * Fehling’s Solutions A and B * Sodium hydroxide and copper (II) sulphate solutions 1. Add 2 cm3 of the liquid food sample* to a clean‚ dry test tube 2. Add 2 cm3 of Biuret Reagent. Alternatively: * Use sodium hydroxide solution and copper sulphate solution instead. Add 1 cm3 of sodium hydroxide solution (40% or bench solution) and 1% copper (II) sulphate solution dropwise – drop by drop - to
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Middle East University Course: Strength of materials (Laboratory) Course No. 0902234 Experiment Name: Abrasion Test by Los Angeles Machine Date: 11-Mar-2014 Abdullah Al-Saleh Due Date: 18-Mar-2014 INTRODUCTION The machine is used for testing crushed slag‚ crushed and uncrushed gravel for resistance to abrasion. The aim of the test is to find the percentage wear due to the relative rubbing action between the aggregates and steel balls as abrasive charge. The oven-dried arrangements
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The T-TEST 1.0 INTRODUCTION The t-test was developed by W. S. Gossett‚ a statistician employed at the Guinness brewery. However‚ because the brewery did not allow employees to publish their research‚ Gossett’s work on the t-test appears under the name "Student". The t-test is sometimes referred to as "Student’s t-test." Gossett was a chemist and was responsible for developing procedures for ensuring the similarity of batches of Guinness. The t-test was developed as a way of measuring how closely
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James P. VanDemark Psyc4310- Tests and Measurements (36357) Dr. Trina Gordon Hall April 19‚ 2014 Name of Test: The Myers-Briggs Type Indicator® The Name of the Test: Include also the date it was originally developed as well as the date of the current version. This should be done in a narrative form under the subheading The test critique is based on the Myers-Briggs Type Indicator. This was a mother and daughter joint effort of Katharine Cook Briggs and Isabel Briggs Myers developed the MBTI®.
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physical examination to assess their individual ability to physically perform the job. It is also involves an extensive aptitude test for both enlisted an officers. This test focuses on a variety of areas to include mechanical knowledge‚ technological knowledge‚ cognitive and analytical ability‚ and other important areas for performance related to various jobs. The test is graded in all the areas individually. The scores are examined against possible jobs available. Each job had minimum standards
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Dangers and hazards of nuclear power When the term Nuclear Power or Nuclear Energy gets used usually the first things that come to mind for most people are bombs‚ destruction‚ war‚ and deformed humans. Which in fact are four things that occur the least in the nuclear power field. Nuclear power is much more than just bombs and destruction‚ bombs barely even take up a percentage of the total amount of nuclear energy used in the world today. Most all of the nuclear energy used today comes in the form
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