Proteins Purpose: To test for the presence of starches and protein macromolecules‚ to introduce the concept of variations in chemical compounds. Hypothesis: If biuret is blue after a test for protein‚ then it is a negative result because biuret reagent is blue to begin with. If a solution is pinkish purple‚ or purple‚ then the test for protein is positive. The test solution for starches is yellowish brown. If any substance that is yellowish brown when mixed with iodine‚ then the test for starches is
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Personality tests are used to better understand how one is perceived by others in day to day interactions. Although the questions asked seem very random at times‚ they cover a wide range of topics to better evaluate the individual. Along with evaluating someone’s personality‚ the tests are also used to give suggestions of possible career fields that would best suit the individual. After taking a few of these tests myself‚ I hope to have a better idea of my personality and apply the results to my
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studied personality test for a long history. At one time‚ personality tests were not perceived as a valid selection method. However‚ personality tests are widely used and get generally positive conclusions today. (1) Reliability and validity In recent years‚ there are many researches focusing on the illumination of the value of personality tests as predictors of performance. In 2007‚ Morgeson‚ Campion‚ Dipboye‚ Hollenbeck‚ Murphy‚ and Schmitt cautioned that personality tests have very low validity
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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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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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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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The principal notion of concluding the decline of the subcontinent based on the decline of Mughal power in the 18th century still exists. The time period after Aurangzeb’s death and before the pre-Colonial regime in the subcontinent encountered various political conflicts and extensive cultural progress. In terms of the political conflicts‚ the Mughals faced a financial crisis which was generally caused by the immense expansion and catalyzed by other events. They also had to deal with the numerous
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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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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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Test Critique General Information Theodore Million‚ Carrie Million‚ Roger Davis‚ and Seth Grossman wrote Millon Adolescent Clinical Inventory (MACI) and Pearson published it in 1993. The second edition has been available since 2006. Starting kit is $125‚ includes MACI manual and answer sheets: all materials necessary to conduct 3 assignments and receive interpretive reports using the mail-in scoring services. The manual alone is $45.50 (Pearson‚ 2015). The Millon Adolescent Clinical Inventory (MACI)
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