History of Pulse Oximetry Before the Pulse-Oximeter the only way to measure SpO2 was by using a painful arterial blood gas which took a minimum of 20-30 minutes to view the result. In 1974 Takuo Aoyagi a Niigata University student disclosed his first Pulse-Oximeter for the use of pilots in World War 2. He set about searching for a non-invasive way of monitoring arterial blood oxygen saturation. Nellcor’s pulse oximeter was put on the market in 1983 and this used his theory developed in 1974. By
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UNKNOW BACTERIA LAB REPORT UNKNOWN 36 Introduction The purpose of this lab was to identify two unknown bacteria from a mixed culture. The reason for identification of unknown bacteria was to help students recognize different bacteria through different biochemical tests and characteristics. This is important in the medical field because identification of unknown bacteria can help treat a patient by knowing the contributing source of a disease. Also knowledge of different bacteria helped others
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reagents used in this experiment are: copper nitrate‚ ethanol‚ ethanoic acid‚ diethyl ether‚ 5% HCl‚ concentrated sulphuric acid‚ litmus paper‚ acetic acid‚ sucrose‚ methylamine‚ benzoic acid‚ 5% NaOH‚ 15% HCl‚ butyl bromide‚ buteraldehyde‚ nitro phenol‚ propanone‚ 5% NaHCO3‚ and phenolphthalein. This experiment is quite simple but it requires proper handling of chemicals since the chemicals used are toxic. Moreover‚ this experiment requires proper observation especially the solubility test. After
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Kristin Rupich is an acute care nurse practitioner in Philadelphia‚ Pennsylvania. In this article‚ Rupich examined six research studies investigating the use of hypothermia in patients with a traumatic brain injury. The effects associated hypothermia as on patients with a secondary brain injury. This article also discusses the complications that arose throughout the process‚ as well as the outcomes of the research studies and the patients in the hypothermia and normthermia groups. In the United States
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(Hock Process). Propene is added to benzene [71-43-2] to form cumene [98-82-8]‚ which is then oxidized by air to cumene hydroperoxide‚ and cleaved in the presence of an acid catalyst like zeolite. Phenol [108-95-2] and acetone [67-64-1] produced in the process are recovered by distillation. Ratio of phenol to acetone is 1:0.6. (2) By Dehydrogenation of 2-proponal The hydration of propene [115-07-1] gives 2-propanol [67-63-0]‚ which is then dehydrogenated to acetone. In the United States a C3 stream
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| Radio waves‚ microwaves‚ infrared waves‚ visible light‚ ultraviolet rays‚ gamma rays. | Energy in an Electromagnetic Wave | Energy is part electric and part magnetic. | DO NOT Pass through Light | Infrared and Ultra-violet light do not pass through glass while visible light does. | Resonance on Glass | Electron in glass have a natural frequency in ultra-violet range. | Atmosphere Transparency | Our atmosphere is transparent to visible light and some infrared‚ but almost opaque to ultra-violet
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Understanding wood Trees are in essence‚ plants that can be harvested. If most plants have a fairly short rotation time‚ measured in week or months‚ depending in what kind of soil they are growing or in which type of climate‚ trees are a bit more permanent. What we mostly use from a tree‚ it’s its trunk. Of course there are oils and resins‚ but wood would be by far the ‘ingredient’ we use the most from a tree. That trunk‚ stays upright for years and it gives the tree the possibility to constantly
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Micrbio Clicker questions: 1. Organisms that have a prokaryotic cell structure‚ no peptidoglycan in cell walls and unique cell membrane lipids would most likely be: A. Archaea 2. Who first published extensive observations of microorganisms? A. Anthony Von Leeuwenhoek 3. The primary use of Koch’s postulates is to? A. Demonstrate that a disease is caused by a specific microorganism 4. Microscope resolution ____________ as the wavelength of radiation used to illuminate the specimen
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Map (David & Allen)………..………………………...……..…….6 Process Map (David & Thomas)……………………………………..…7 Four Designs…………………………………..…...………...……..…8 Rubber Band Driven Boat (Tom) Air Injection Boat (Thomas) Stream Driven Boat (Allen) DC Motor Boat with Infrared Sensors (David) Designs Selection……………….…………………………………...13 Quick Elimination (Allen &Thomas) Deep Balance (David) Final Design & Specification…………………..………………..…..16 Mechanical Drawing (Tom & Thomas) Improvements Made for Final Design (David
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Chapter 18 Ethers & Epoxides; Thiols and Sulfides Assigned Reading from McMurry: Read Sections 18.1 through 18.9; not responsible for “Focus on … Epoxy Resins & Adhesives‚ pp. 697-698). Recommended Problems from McMurry: 18.1a-e;18.18.2;18.3a-d; 18.4; 18.5a-d; 18.6a-b; 18.7a-b; 18.8; 18.9; 18.10; 18.11; 18.12a‚b; 18.13a‚b; 18.14a-c; 18.16a-f; 18.17; 18.18; 18.19a-c; 18.20; 18.21; 18.22; 18.23a-e; 18.24a-I; 18.25a-f; 18.26a-d; 18.27; 18.28; 18.29ad; 18.30a-e; 18.31; 18.32; 18.33; 18.34; 18
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