What simple machines did you incorporate into your nifty lifting machine? 1. In the nifty lifting machine Kenny‚ Kaylee and I used three simple machines. We used a pulley system as our first simple machine. The pulleys are what allowed pulling the 600 gram can up the five centimeters. My group also used a wheel and axle‚ which is the crank that we used to pull up the cans. The wheel is the gear and the axle is the dowel rod we used to tie the rope around. Then we used a wedge to stop the gear on
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Differential Staining Purpose: The purpose of this experiment was to become familiar with subtypes of culture media and the uses for each‚ learn and employ the streak and pour dish techniques‚ and generate a pure culture of a specific organism. Set Up: For this experiment I needed: 1 Distilled water‚ 1 Paper towels‚ 1 10%-bleach or 70% alcohol solution‚ 1 Zip bag‚ 1 Pan to heat agar‚ 1 Isopropyl alcohol (rubbing alcohol)‚ 1 Cultures: S. epidermidis and L. acidophilus‚ 1 Gloves‚ Disposable
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International Journal of Solids and Structures 44 (2007) 7049–7060 www.elsevier.com/locate/ijsolstr Buckling analysis of plain knitted fabric sheets under simple shear in an arbitrary direction Y.T. Zhang a b a‚* ‚ C.Y. Liu b‚ R.X. Du b Department of Mechanics‚ Tianjin University‚ Tianjin 300072‚ China Department of Automation and Computer-Aided Engineering‚ The Chinese University of Hong Kong‚ Hong Kong‚ China Received 22 December 2006; received in revised form 12 March 2007 Available
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LABORATORY EXERCISE 8-A: Preparation of Bacterial Smear and Simple Staining I. INTRODUCTION Bacterial smears are prepared for the purpose of viewing microorganisms under the microscope. Visualization of microorganisms in the living state is very difficult‚ not just because they are minute‚ but because they are transparent and almost colorless when suspended in an aqueous medium. A bacterial smear is a dried preparation of bacterial cells on a glass slide. Smears may be made from a dry culture
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of this experiment was to identify a specific unknown bacterium that was isolated from a multitude of bacteria in a sample of contaminated dirt by running it through a series of identification techniques. Some of these techniques were simple staining‚ gram staining‚ and isolation techniques. The hypothesis of this experiment was that the bacterium is of the bacillus family due to the rod shape. Due to multiple complications with the PCR‚ a new hypothesis couldn’t be formulated. Methods: In this
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provide accurate data. 2. Through this letter I would like to present my opinion regarding Grams staining method and reliability of this method. According to me‚ Grams staining process is a simple technique that assists in recognition of etiological agent and therefore can be called as one of the most significant staining practices in microbiology. Though‚ Gram is concerned that the staining process developed by him is imperfect because not all bacteria can be stained by it‚ but in my opinion
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SCI250 Week 1 Chapter 3 Staining Lab Quiz Section: Multiple Choice 1. Which of the following stains is used frequently to identify Mycobacterium and other bacteria whose cell walls contain high amounts of lipids? A. Gram stain B. Schaeffer-Fulton stain C. Acid-fast stain D. Lipidialar stain E. Spore Stain 2. Which of the following stains is used to classify microorganisms based on their cell wall content? A. Capsular stain B. Gram stain C. Spore stain D. Negative stain E. Methylene blue 3
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systems Bacteria used in lab is classified as Class 1 by US Public Health Service/Biosafety Level 2 Review everything about the microscope and our original laboratory EXERCISE 1: USE AND CARE OF MICROSCOPE: (Covered 9.4.14 II Week 1) THE MICROSCOPE: Simple microscope early microscope; like a magnifying glass Brightfield compound microscope Most often used Base Bottom of microscope Stage Holds slide Arm Carries the microscope Body Tube Transmits the magnified image Condenser Lenses that concentrate
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and therefore necessary during cellular proliferation. The protein can be found in all phases of the cell cycle but not in resting cells. The Ki67 staining is used to determine growth of certain cell types and is therefore used on hyperproliferative cells such as tumor cells‚ but also in benign hyperproliferative diseases such as psoriasis. The staining reveals the proliferative active keratinocytes which can be found in stratum basale. Sept7-deficient mice receiving IMQ treatment (Fig S6. A) had
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Week 1 Chapter 3 Staining Lab Quiz SCI/250 SCI250 Week 1 Chapter 3 Staining Lab Quiz (6.7 points each) Check or underline the correct answer Section: Multiple Choice 1. Which of the following stains is used frequently to identify Mycobacterium and other bacteria whose cell walls contain high amounts of lipids? Gram stain Schaeffer-Fulton stain Acid-fast stain Lipid stain Spore Stain 2. Which of the following stains is used to classify microorganisms based on their cell wall
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