Thin Layer and Column Chromatography of Extracted Total Lipids of Chicken Egg Yolk Aegan Matthew V. Amican‚ Karen Gem B. Ares‚ Ruvie Ann A. Ballester‚ Mark Joseph S. Barcelona‚* Katherine Carmen Isabel G. Calleja‚ Christelle Venus F. Capuno‚ Group 1‚ 2DPH‚ University of Santo Tomas Abstract Lipids are one of the major constituents of foods‚ and are important in our diet for a number of reasons. They are a major source of energy and provide essential lipid nutrients. This experiment determined
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Experiment 3: The preparation of acetaminophen (paracetamol) with thin layer chromatography (TLC) to monitor the reaction. Abstract: This experiment is to demonstrate the preparation of paracetamol and its properties. Reflux and filtration of 4-aminophenol and acetic anhydride formed the crude sample. Further analysis of dry white crystals were used to give quantitative measurements and a percentage yield of 46% was obtained. The overall conclusion is that the acetic anhydride reacted with the
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Dictionary of Quantitative Methods in Management. Sage Publications Principal Components Analysis Introduction Principal Components Analysis (PCA) attempts to analyse the structure in a data set in order to define uncorrelated components that capture the variation in the data. The identification of components is often desirable as it is usually easier to consider a relatively small number of unrelated components which have been derived from the data than a larger group of related variables. PCA
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LDC 13-03: Leadership for the Information Age Thin-Slicing: A Foundational Perspective Team 2: Steven Cox‚ Tina Harmon‚ Bonita Hilliard‚ Tracy Hines‚ Damen Hofheinz National Defense University Information Resources Management College 10 February 2013 This paper is my own work. Any assistance I received in its preparation is acknowledged within the paper or presentation‚ in accordance with academic practice. If I used data‚ ideas‚ words‚ diagrams‚ pictures‚ or other information from
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1. Crust: The Earth’s surface is composed mostly of water‚ basalt and granite. Oceans cover about 70% of Earth’s surface. The Earth’s thin‚ rocky crust is composed of silicon‚ aluminum‚ calcium‚ sodium and potassium. The crust is divided into continental plates which drift slowly (only a few centimeters each year) atop the less rigid mantle. The crust is thinner under the oceans; this is where new crust is formed. Continental crust is about 25-90 km thick. 2. Mantle: Under the crust is the rocky
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Crust is the first and upper most layer of the Earth. There is Continental Crust which sits on top of Oceanic Crust. This layer is made frequently from granite rocks and is solid. Continental Crust is approximately 32km. Below the Continental Crust is Oceanic Crust. It is about 8km. This part of the Crust is made from basalt rocks. The Crust is most of lithosphere and is the coolest layer by far. Mantle is like silly putty consistency. It is the largest layer of Earth sitting under the Crust.
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Into Thin Air takes place in the area around and on Mount Everest in the year 1996. This is significant because at that altitude‚ the oxygen level isn’t as high as it would be at sea level. With their brains not receiving enough oxygen‚ the climbers were not able to think at their full mental capacity. Therefore many simple mistakes were made that should not have been. High altitude cerebral edema and high altitude pulmonary edema caused problems with some of the climbers and Sherpas. Beck Weather’s
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Dying to Be Thin A Look Into the Life of an Anorexic and the Health Risk That Come With It By: Andrew Peterson 1. What did you see regarding ideal body weight? What other attitudes exist about weight? When watching the video‚ I realized that anorexics don’t want to eat. They don’t feel hungry; they don’t think that they are destroying themselves. When they look at themselves‚ they see themselves as fat and overweight. To try and fit the image of what they think they should look like
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Skin Layers 1. Epidermis The epidermis is the outer most layer of skin. It is built up of 5 layers (from the outside in) - stratum corneum is made of dead flat skin cells - stratum licidum - stratum granulosum - stratum spinosum - stratum basale Where cells divide and push previously formed cells into the upper layers. As the cells travel into the higher layers‚ they flatten and die‚ eventually. Specialized Epidermal Cells - melanocyte - produces pigment (melanin) - Langerhans’
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Layers of the Atmosphere The envelope of gas surrounding the Earth changes from the ground up. Five distinct layers have been identified using... • thermal characteristics (temperature changes)‚ • chemical composition‚ • movement‚ and • density. Each of the layers are bounded by "pauses" where the greatest changes in thermal characteristics‚ chemical composition‚ movement‚ and density occur. Troposphere The troposphere begins at the Earth’s surface and extends from 4 to 12 miles (6 to 20
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