”The share of organic and natural cosmetics in the $270 billion global cosmetic market is growing at a fast pace.” As people are becoming more and more conscious of the negative side effects of extended use and exposure to chemical cosmetics so too has the cosmetics industry. Cosmetics normally use aromatic hydrocarbons that are derived from petroleum which have been proven to show long term side effects on the skin. While the idea of organic cosmetics is not new a company as well known as M.A.C
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The formation of an action potential can be divided into five steps. (1) A stimulus from a sensory cell or another neuron causes the target cell to depolarize toward the threshold potential. (2) If the threshold of excitation is reached‚ all Na+ channels open and the membrane depolarizes. (3) At the peak action potential‚ K+ channels open and K+ begins to leave the cell. At the same time‚ Na+ channels close. (4) The membrane becomes hyperpolarized as K+ ions continue to leave the cell. The
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Finding Fish Assignment 1 Barbara Calhoun SWK 358 The book‚ finding fish‚ is a poignant autobiography of the life of Antwone Quenton Fisher‚ an African American boy who suffered a tumultuous childhood in a foster care setting. He was born on 8-3-1959 in a Cleveland prison to Eva Mae Fisher. She was incarcerated for the shooting death of his father‚ her boyfriend at the time‚ Eddie Elkins. Initially‚ he spent his first few weeks of his life in a Cleveland orphanage. Then he was fostered
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Redox potential – CV Acetonitrile Adjusted sensitivity Each ;line represents diff scan rates all been overlayed on one digarm Scan rates ranged from 0 .1 s-1 to 1 Peak due to iodide oxidation is read from +peak to – peak bottom line. Iodide to triiodide Glycol Didn’t work Using equation ip = 2.69 ×105 n3/2 A D1/2 C ν1/2 compare to linear equation y = mx+c y = peak current x = V1/2 c = zero Therefore m is = everything else C = concentration 0.05 M ethylene glycol (acetonitrile
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THE WORK DONE BY A CONSERVATIVE FORCE ALWAYS HAS FOUR PROPERTIES: 1. It can be expressed as the difference between the initial and final values of a potential-energy function. 3. It is independent of the path of the body and depends only on the starting and ending points. 2. It is reversible. 4. When the starting and ending points are the same‚ the total work is zero. The total mechanical energy ME = K + U is constant. Object moving in a uniform gravitational field gravitational a
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which cell has the larger resting membrane potential? Explain. If the permeability to K is higher in A than in B‚ then the resting membrane potential (rmp) will be closer to the equilibrium potential in cell A‚ which means the rmp will be more negative in cell A than in cell B; or in other words‚ the potential difference will be LARGER in cell A. 2. Predict the effect of a reduced extracellular concentration of Na+ on the magnitude of the action potential in an electrically excitable cell. If there
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Potential Energy • Definition and Mathematics of Work • Calculating the Amount of Work Done by Forces • Potential Energy • Kinetic Energy • Mechanical Energy • Power An object can store energy as the result of its position. For example‚ the heavy ball of a demolition machine is storing energy when it is held at an elevated position. This stored energy of position is referred to as potential energy. Similarly‚ a drawn bow is able to store energy as the result of its position. When assuming
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In the movie Big Fish by Tim Burton‚ the main character‚ Edward Bloom narrates the stories of his life. In telling these stories‚ his son‚ William Bloom‚ cannot differentiate if his father is telling the truth or not. Because of this‚ their father-son relationship starts to strain. However‚ even if Edward’s stories might not make sense‚ that’s what makes it special. As a child‚ Will loved listening to his father’s stories. Since his father used magical realism‚ it made his stories worth listening
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“Fish Cheeks” In Amy Tan’s short story‚ “Fish Cheeks”‚ Amy changes drastically. You really see a change in herself. Not an outward change‚ it’s definitely more of an inward change. In the beginning of the story she tells you how she fell in love with the minister’s son when she was fourteen. She was Chinese‚ he was American‚ and she made it evident that it bothered her. She was scared of what her crush‚ Robert‚ would think of her when his family had plans to come to her house for Christmas Eve
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UNIVERSITY ENTRANCE EXAMINATION PHYSICS Duration : 2 hours Please read the following instructions carefully. 1. This paper is made up of 50 Multiple-Choice questions and comprises ELEVEN (11) printed pages. 2. Do not write on the question paper. 3. Answer all questions and indicate your answers on the answer sheet provided. Marks will not be deducted for wrong answers. 4. Do not take any paper‚ including the question paper or unused answer sheets‚ out of the examination
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