Sickle cell anemia was first discovered in the year of 1910. A young man by the name Walter Clement Noel from the island of Grenada‚ studied in Chicago. He went to Dr. James B. Herrick‚ whom was a cardiologist‚ with symptoms of anemia‚ who assigned Dr. Ernest Irons to the case. There Dr. Irons noticed that Noel’s red blood cells were the shape of a sickle. Although sickle cell anemia has occurred in Africa for thousands of years‚ Dr. Herrick was the first to provide a formal description of sickle
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as well as helping them access other sources of information and direction. In this essay I will examine the prevalence of ADHD‚ its signs‚ symptoms and the challenge these pose to teachers. I will outline what research says about managing and teaching these children in today’s classrooms. What is ADHD? Numerous terms have been used to describe the disorder with the symptoms of ADHD. These include Minimal Brain Dysfunction (MBD)‚ Hyperkinetic reaction and Hyperkinesis. Throughout this essay I
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The Effect of Caffeine 1% and 2% on Daphnia magna’s Heart Rate Abstract: Ectothermic animals are animals whose body temperature is affected by their surroundings. This means that if the environment is cold the animal will be cold. If the environment is warm the animal will be warm. This is because the animal doesn’t have the capability of regulating its body systems to keep a constant body temperature. When an ectothermic animal is cold‚ its heart rate will lower. When
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Rat Song Introduction ”Rat Song” is a poem written by Margaret Atwood and is part of Selected Poems from 1976. What is interesting about the poem is that it is written from the point of view of a rat. And by looking through the eyes of a rat (which many people see as a primitive and inferior animal) the poem shows how judgemental‚ hateful‚ hypocritical and “unnatural” the human race is. The poem furthermore advocates that humans are a much greater parasite than the rats they are so desperately
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You must submit to your husband‚ you must let him talk first and wait to put your input in until he has gotten settled in the house‚ and you must be ready for whatever his needs are; the roles of women in the 1800’s. In the play A Doll’s House author Henrik Ibsen wrote about a married couple named Nora and Torvald their relationship from the start had readers very uncomfortable and feeling emotions towards their dynamics. Nora shows that she has a secret side by going behind Torvalds back and getting
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While this can be true‚ there are also a number of negative side effects it can cause. First off‚ multitasking is also known as sequential processing. What this means is‚ we aren’t really multitasking. Essentially we are closing a ‘tab’ (task) in our brain and opening another one. We are only performing one task at a time‚ rather than a bunch at once even though it may seem that way. As mentioned earlier‚ this can have negative side effects on the brain. One example of that is over-stimulation. Once
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the black sheep’s‚ and the out casted group of people. Being that they were out casted they had a huge effect on society. The focus of my investigation is how the hippies affected the United States socially in the 1960’s. The origin of this source is an article that was written by Emily Marsden and published in 2014. Its purpose is to inform people like me‚ on the Hippies Movement of the 1960’s. It is giving me information like how the Hippies started and where they started. A value from this article
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Summary This experiment will measure the rate of oxidation of iodide ions by persulphate ions to derive the rate law for the reaction. Starch will be added to the reaction to facilitate the measure of time during the reaction. The reactant solutions will contain (NH4)2SO4 and KI‚ represented as: (NH4)2S2O8 + 2KI -> I2 + (NH4)2SO4 + K2SO4 This can be simplified to: S2O82- + 2I- -> I2 + 2SO42- These equations can only be carried out and be visible after the iodine has completely
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The Spanish Influenza The Spanish Influenza was a disaster in the year 1918 because many people began to get the cold or as the Spanish call it “La Grippe”. The Spanish influenza was caused by people having the H5N1 virus. The virus in the year 1918 killed about five-hundred million people and only about fifty-million were victims of the Spanish influenza. The Spanish Influenza came spreading from China and it came a huge disaster because nobody knew how it all began. The Spanish Influenza began
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the average rate of return‚ the greater the risk premium. D. The risk premium is not correlated to the average rate of return. 5. You bought 100 shares of stock at $20 each. At the end of the year‚ you received a total of $400 in dividends‚ and your stock was worth $2‚500 total. What was your total return? A. 45%. B. 50%. C. 90%. D. 20%. 6. You bought 100 shares of stock at $20 each. At the end of the year‚ you received a total of $400 in dividends‚ and your stock was worth $2‚500
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