Using a spirometer to investigate human lung function The purpose of this activity is: • to show how a spirometer can be used to find the vital capacity of lungs and to calculate important subdivisions of this capacity. • to show how to interpret the trace resulting from use of a spirometer • to consider how to use a spirometer to estimate metabolic rate. Procedure SAFETY: Do not use a spirometer unless supervised by a teacher. If you are using the spirometer and you experience
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Nowadays everybody is talking about the internet‚ a century creation‚ which has converted the whole world into a single home. The use of internet has turned our lives to be much easier and comfortable. It is found that in 1990s the adolescents used the internet primarily for entertainment but at present they use it for interpersonal communication. Opportunities for youths to form‚ maintain and develop relationships on the internet have multiplied in the past few years. Along with the increase in
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October 9‚ 2013 Using Their Resources I am not a poor inner city kid. I am a teenage white girl who comes from a middle class white background. So life is easier for me. But that doesn’t mean that the succession is impossible for those kids from the inner city. It doesn’t mean that there are no opportunities for them. I believe that everyone in this country has a chance to succeed. Even a poor inner city kid in Kansas City. It takes brains. It takes hard work. It takes a little luck‚ and
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Using the Blu-Ray vs DH DVD example‚ and other sources‚ provide advice to a chief executive officer of a firm for the best strategy to deal with a standard battle Candidate Number: 69619 Word Count: 1569 In the VCR market‚ although Betamax format of Sony was the technologically superior t VHS formats of JVC‚ there were still many factors that led to the dominance of VHS over Betamax. Firstly‚ the recording length is a major factor. Compared with the original Sony Betamax video recorder which could
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Using MIS 3e Chapter 1 The Importance of MIS David Kroenke Study Questions Q. Q. Q. Q. Q. Q. What is MIS? How can you use the five-component model? What is information? What makes some information better than other information? What is the difference between information technology and information systems? 2020? Copyright © 2011 Pearson Education‚ Inc. Publishing as Prentice Hall 1-2 What is MIS? • Development and use of information systems that help businesses achieve their
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Using Sources Why should marijuana be legalized? There are many reasons but a few are because of its medicinal value‚ that it would stimulate the economy‚ and it would lower crime. I plan to use the following information for the body of my final paper. One of the most supported reasons for legalizing marijuana is its medicinal value. Herbs were used before all the advanced medicines we have today and use of marijuana for medical reasons date back almost 5‚000 years (Norml). As for U.S. history
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Studying the pH of Strong Acid‚ Weak Acid‚ Salt‚ and Buffer Solutions The purpose of the current experiment was to determine the pH of various hydrochloric acid and acetic acid solutions‚ to determine the pH of various salt solutions‚ to prepare a buffer solution‚ and determine the effects of adding a strong acid and strong base to the buffer solution versus adding a strong acid and strong base to water. The measured pHs for the hydrochloric acid solutions were 1.6‚ 2.2‚ 2.9‚ and 3.8. The measured
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Materials: Brightly colored test tube rack‚ kim wipes‚ beaker for trash 1.5 ml microcentrifuge tubes Test plate Micropipetters and tips DI water Buffer solution … 4.5 to 8.8 I2Kl (grams iodine) Starch solution Enzyme (amylase) 80 degree Celsius water (HOT) Floating test rack Procedure: While controlling the amount of starch and the amount of buffer we use with a pH of 5.8‚ we want to investigate how changes in enzyme concentration affect reaction rates. First we put 500 ml of amylase from
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Experiments : 1. PCR . 2. Protein extraction and purification . 3. Protein concentration determination . 4. SDS-PAGE . 1. The aim of experiments : 2.1 The aim of PCR experiment is to replicate some DNA dimmers by using specific enzymes used for replication in vitro which is done in lab not by living organisms. 2.2 The aim of protein extraction and purification experiment is to extract some proteins and purify them by specific methods. 2.3 The aim of
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Using Microsoft Excel 2010 Advanced Skills Using Microsoft Excel Advanced Skills Excel contains numerous tools that are intended to meet a wide range of requirements. Some of the more specialised tools are useful to only certain types of people while others have value for more general excel users. These exercises will cover some of the advanced features that may be useful for most excel users. These features will include cell naming‚ cell notes‚ conditional formatting‚ data validation
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