nature of information to be extracted‚ can be accomplished using an Optical Microscope (up to X2000) or Scanning Electron Microscope (up to X 50000) or a Transmission Electron Microscope (up to X500000). For most of the routine purposes in optical microscope is used to obtain first hand information on the geometric arrangement of the grains and phases in a material. In order to retain the information visualized using the microscope‚ microstructural details are often recorded on a 35 mm film or a Polaroid
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life); seed samples (the growth and development of organisms); the electron microscope (allowing detailed examination of objects); the tablet-style computer (the dissemination and democratisation of knowledge); and the moon rock (exploration of space). DNA Spiral Helix The deoxyribonucleic acid (DNA) helix is the only object in the Cabinet which is a representation. Whilst DNA exists in every cell it would need the Electron Microscope to render DNA visible. Two strands are shown twisted into a helix
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I Introduction Technology I.1 What is technology? I.2 First inventors I.3 How science affects technology I.4 How technology affects science I.5 Discussion questions 2 Chemistry connects to . . . . . . I.1 What is technology? Think for a moment what it might be like to live in the 14th century. Image that you could travel back in time and found yourself in a small European village in 1392. What do you think you would find
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and neurogenic changes. Many myofibers with multiple clusters of blue red rod-like structures and cytoplasmic inclusions were noted. Immunohistochemistry showed a focal positive reaction in sarcoplasm to desmin and myotilin antibodies. An electron microscope study revealed variable abnormalities of myofibrillar structures. To the best of our knowledge‚ this is the first reported case of MFM with pathology findings in Korea. Key Words : Myofibrillar myopathies; Desmin; Pathology CASE REPORT
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the development of the light microscope many scientists were able to view microscopic objects such as cells. The first to accomplish this was Robert Hooke when he used a light microscope to observe a thin slice of cork. Hooke observed that the cork was made of tiny structures of which he called cells. Hooke was in fact looking at the cell walls of dead plant cells that make up the cork. After Hooke‚ a Dutch scientist named Anton van Leeuwenhoek used the light microscope to observe living cells inside
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Nano-Bio-Sensing Sandro Carrara Editor Nano-Bio-Sensing Foreword by Giovanni De Micheli Editor Sandro Carrara EPFL Lausanne Switzerland sandro.cararra@epfl.ch ISBN 978-1-4419-6168-6 e-ISBN 978-1-4419-6169-3 DOI 10.1007/978-1-4419-6169-3 Springer New York Dordrecht Heidelberg London Library of Congress Control Number: 2010938597 # Springer Science+Business Media‚ LLC 2011 All rights reserved. This work may not be translated or copied in whole or in part without the written permission
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between the electrical contacts and a single or a few molecules. The surface metallic molecules can either be chemisorbed or physisorbed‚ resulting from van der Waals force. The electrical properties of the molecules can be determined by testbeds‚ scanning tunneling microscopy (STM)‚ conducting probe atomic force microscopy‚ STM break junctions and mechanical break junctions. But for now these still cannot provide an opportunity to prepare a working MED that could be used in applied set-ups. There
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Scanning What for: get specific/detailed information How to: * Read the question * Bear in mind keywords/ synonyms * Find and read the sentence containing the keywords/ synonyms * Find the answer * If unable to find the answer‚ read some sentences before and/or after the sentence containing the keywords/synonyms * Find the answer . Techniques: Scan from the bottom of a paragraph from right to left. Look at either side of the diagonal line. Scan vertically from the bottom
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able to: 1. handle the microscope properly; 2. identify the parts of the microscope; 3. describe what parts of the microscope can do; 4. prepare materials for microscope study; 5. focus the microscope properly; 6. compare the image of the object seen by the unaided eye and under the microscope; and 7. compute for the magnification of objects observed under the microscope. [pic] Procedure: A. THE MICROSCOPE‚ ITS PARTS AND THEIR FUNCTIONS 1. Get the microscope from its box or the cabinet
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then select the lowest ocular power (4x) to set microscope into low power. The reposition slide into the circle of light by turning the two knobs located at the right of the microscope. The top knob moves slide back and forth‚ where as‚ the bottom knob positions the slide from side to side. Then adjust the focus using the coarse focus and fine focus knob‚ using the coarse focus first causing a move rapid movement. ALWAYS make sure the microscope is in its lowest power when using the coarse
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