The V-Chip What is a V-chip? This term has become a buzz word for any discussion evolving telecommunications regulation and television ratings‚ but not too many reports define the new technology in its fullest form. A basic definition of the V-chip; is a microprocessor that can decipher information sent in the vertical blanking of the NTSC signal‚ purposefully for the control of violent or controversial subject matter. Yet‚ the span of the new chip is much greater than any working definition can
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This Chip Can Tell If You’ve Been Poisoned Quick detection. This 2-cm-wide chip (inset) can quickly test for botulism‚ a deadly disease caused by theClostridium botulinum bacterium. When you are dealing with a deadly poison that can be found in food and is a potential terrorist weapon‚ you want the best detection tools you can get. Now‚ researchers in France have demonstrated an improved method to detect the most deadly variant of the botulinum neurotoxin‚ which causes botulism. Their test
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Summary The poem begins with our speaker at his desk‚ his pen poised to begin writing. He gets distracted by the sound of his father outside‚ working in the garden‚ and this sends our speaker into a spiral of memories about his father working in the potato fields when the speaker was a young boy. The memory stretches even further back to his grandfather and the hard work he did as a peat harvester (there’s all kinds of hard work going on). Eventually‚ our speaker snaps out of his daydream‚ and we find
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Since potato cells were used for this type of experiment‚ in an Isotonic solution the solute and water concentration are the same as inside the cell in which the isotonic solution contains 0.9% NaCl. In other words‚ water moves in and out in the same amount without causing any changes. In a hypertonic environment‚ the solute concentration is greater and water concentration is less outside the potato cell in which the hypertonic solution contains 10.0% NaCl. This solution will cause the potato cells
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The potato’s introduction into Europe proves to be one of the most significant examples of a foreign food crop being able to extensively affect the lives of a an Old World Population. Before the assimilation of the potato crop into the majority of Europe’s agricultural landscape‚ peasant populations constantly faced famines while current food sources provided little nutritional value and were not efficient sources of energy. As Europe adopted the brown tuber‚ people were provided with a far more
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of a Potato Mishal Hasan Abstract Students in Biology find it difficult to understand the concept of tonicity and osmolarity in a real time situation. In this investigation‚ several concentrations of sucrose were used to determine the osmolarity of a potato. It was found that the concentration of sucrose was close to 3.6 in the potato used showing that it was isotonic. Anything above caused the potato to gain weight showing that it was a hypotonic solution and anything below caused the potato to lose
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Introduction Blue Chip Blue chips are the biggest‚ most stable‚ and often the most reputable companies in existence. The term comes from casino houses‚ whihc use colored plastic chips to represent the money patrons gamble with. Traditionally‚ blue chips were the most valuable color chip of all; but in gambling today blue chips are among the lowest valued chips‚ and also the most widely recognized. This is in standing with the financial industry’s strong feeling for its own history: investors
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OSMOSIS IN POTATO TISSUES Vanessa Tsao‚ Lovette To‚ Wang Yeyun‚ Zhang Shenjia‚ Alicia Mak Class 101‚ Nanyang Girls’ High School‚ 2 Linden Drive‚ Singapore 288683 ABSTRACT In this project‚ the relationship between the concentration of salt solution and the length of the potato strip that was immersed in it was investigated. Five strips of potato of the same length were placed in different Petri dishes that contained water of different salt concentration. They were left for twenty minutes and the length
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Osmosis was clearly shown since the potato cylinders decreased or increased at different concentrations of sucrose. The results supported my hypothesis because for the 0.0 sucrose concentration the average percent change in mass was 16.9%. For the 0.2 concentration the percent change was 3
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foam that can be measured. ANALYSIS QUESTIONS 1. a) Describe the effect of damaging the potato on the catalase activity. With the increased level of damage to the potato‚ there appeared to be more activity within the reaction between the catalase and the H2O2. b) Explain at the cell level why crushing or macerating the potato has this effect. When you crush or macerate the potato‚ you are breaking the cell walls of each individual cell. Once this happens‚ the catalase is
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