“Human error versus human capability: Which way should the pendulum swing?” Human factors can be defined as “the technology concerned to optimize the relationship between people and their activities by the systematic application of the human sciences‚ integrated within the framework of system engineering” (Edwards‚ 1988‚ p. 9). Human factors have evolved over the years since the birth of tools many millennia ago (Civil Aviation Authority‚ 2002). The modern evolution of human factors happened in
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The first synthetic sweetener‚ saccharin‚ was discovered five years prior to Dulcin. The discovery of Dulcin occurred in 1883. Approximately seven years after it’s discovery‚ J.D. Reidel‚ of Berlin‚ was able to synthesis Dulcin at a reasonable cost. Once it became possible to synthesis at a reasonable cost‚ mass production of the sweetener began. Dulcin was favored over its competitor‚ Saccharin‚ because it did not possess a bitter aftertaste. For a very brief period of time Dulcin was marketed
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Medication errors are among the biggest issues in health care settings today. The effect of managed care is one of the causative factors. The need to contain costs has invariably doubled the nurses ’ workload making them less efficient as caregivers. Example of problem is the high incidence of medication errors. Nurses ’ workload has increased tremendously regardless of the fact that most of these patients are of great acuity‚ thereby predisposing them to a greater risk of medication errors. Medication
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REPORT EXPERIMENT 9 CARBOXYLIC ACID AND DERIVATIVES Date: January 19‚ 2004 Objectives: 1. To understand the reactions of carboxylic compounds and derivatives. 2. To know the methods for preparing carboxylic acid derivatives. 3. To know the methods for testing the carboxylic acid derivatives. Experimental Procedures: 9.1 Solubility 1. Prepare 3 test tubes with 3 ml of water in each. 2. Place 3 drops of acetic acid‚ benzoic acid‚ and oxalic acid in separate test tubes. 3. Shake and observe
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Errors of overregularization is a common error that Marcus (1996) proposes to stem from the existence of mental rules denoted by the acquisition of a rule‚ the lexicon store through memory of past tense forms and the an irregularity always is superior to the acquired rule. The paper states four types of evidence where overregularization may not be explained by the draw towards regular stem-past pairs. In analyzing this piece of literature‚ we have to be aware of the limitations of this paper. The
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Standardization of NaOH and Determination of Unknown Acid KEYWORDS: quantitative analysis‚ titration‚ buret‚ endpoint‚ standardization‚ half-equivalence point‚ calorimetric titration‚ potentiometric titration ABSTRACT: The concentration of sodium hydroxide was determined by colorimetric titration‚ and the identity of an unknown acid was determined by potentiometric titration. In the first titration‚ a strong acid standard‚ potassium hydrogen phthalate (KHP)‚ was used‚ to determine the concentration
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Vol. 1 ACETIC ACID 115 ACETIC ACID 1. Introduction Acetic acid [64-19-7]‚ CH3COOH‚ is a corrosive organic acid having a sharp odor‚ burning taste‚ and pernicious blistering properties. It is found in ocean water‚ oilfield brines‚ rain‚ and at trace concentrations in many plant and animal liquids. It is central to all biological energy pathways. Fermentation of fruit and vegetable juices yields 2–12% acetic acid solutions‚ usually called vinegar (qv). Any sugar-containing sap or juice can
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Error Analysis and Interlanguage S. P. Corder Oxford University Press Oxford University Press Walton Street‚ Oxford ox2 6DP Acknowledgements London Glasgow New York Toronto Delhi Bombay Calcutta Madras Karachi Kuala Lumpur Singapore Hong Kong Tokyo Nairobi Dar es Salaam Cape Town Melbourne Auckland and associates in Beirut Berlin Ibadan Mexico City Nicosia ISBN o 19 437073 9 © S. PitCorder 1981 First published ig8i Second impression 1982 This book is sold subject to the
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Jennie K. Daniels Organic Chemistry 2121 11 February 2014 Synthesis of Aspirin Salicylic acid derivatives‚ or salicin‚ are found in the bark of the willow tree. In the 5th century B.C.‚ Hippocrates ground the bark into a powder‚ and later‚ the Natives Americans chewed on the bark to alleviate fever and pain1. In the 19th century‚ a German chemist by the name of Felix Hoffman wanted to find a medication that would ease
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Medusa and the Snail‚ the necessity for error as a means to better educate and fulfill human potential through the rigors of trail and error. Showcased through out the course of human history is the propensity for errors and/or accidents to lead to vast realms of knowledge unbeknown to man kind; achievements that would therefore have escaped the grasp of the minds without these magnificent blunders.Encompassing man kinds existence on this planet is the error that leads to wonderful ramifications and
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