used to determine the population of microorganisms present on equipment or food products (Marriott and Gravani 2006). It may be used to assess the amount of contamination from the air‚ water‚ surfaces‚ facilities and food products. By using this technique the equipment surfaces‚ facilities and food products which to be analyzed are swabbed. The swab are diluted in a dilutant such as peptone water or phosphate buffer‚ according to the anticipated amount of contamination and subsequently applied to
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later‚ which altered my impression of bacteria. Those tiny living creatures are remarkably intricate. Witnessing the breathtaking phenomena created by marine microbes strengthened my determination to further pursue my study of marine microbiology. In my first year as an undergraduate student I participated in lab work on marine microbiology. I led one project on separation and identification of pigment-containing bacteria in the Xiamen Coastal Areas‚
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The human as host–microbe supraorganism. A win-win situation? At the dawn of microscopy‚ the 17th century Dutch scientist Antony van Leeuwenhoek used his crudely built microscope to view magnified scrapings of his own dental plaque: “I then most always saw‚ with great wonder‚ that in the said matter there were many very little living animalcules‚ very prettily a-moving. The biggest sort… had a very strong and swift motion‚ and shot through the water (or spittle) like a pike does through the water…”
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Not all microbes are unpleasant for people they can actually serve us well.There are a number of reasons why not all microbes are bad for people. Bacteria can help the garbage to decompose‚ they are produced in medicines to help fight harmful infections and they benefit the taste of food. Microbes‚ or “microscopic organisms‚” are tiny forms of life that surround us and are too small to be seen with your eyes. To be able to see microbes we need to use a microscope. Bacteria are classified and identified
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Lab #1 (16th October‚ 2012) Safety in the Microbiology Lab * Clinical specimens received from patients pose a hazard to personnel health because of the infectious agents they may contain. * Spurred by the spread of HIV/AIDS‚ the CDC has recommended safety precautions concerning the handling of patient materials by health care workers. * Universal precaution (or blood and body fluid precaution). * Emphasis on good knowledge and common sense. * Safety is everybody’s business
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Microbiology in odontogenic infections Most odontogenic infections contain mixed aerobic and anaerobic bacteria. predominant bacterial species present in oral cavity are maunly Streptococcus ‚ Peptostreptococcus‚ Veillonella‚ Lactobacillus‚ and Actinomyces . 11‚12 The mixed aerobic-anaerobic composition of the bacteria involved in suppurative odontogenic infections is thought to be important in the pathogenesis of infection. if bacteria involved in mixed odontogenic infections are isolated in pure
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Applied Christian Values Dealing with Addictions 1. How would you define an addiction? I would define an addiction as a behavior or activity that is psychologically and/or physiologically habit forming that a person chronically feels compelled to repeat. 2. Name three examples of common‚ socially acceptable addictions. Facebook‚ Coffee‚ Shopping. 3. Name three examples of common‚ socially unacceptable addictions. LSD‚ Cocaine‚ Heroin 4. What are three
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Microbiology is a field of science which typically is divided into several areas such as: bacteriology‚ virology‚ parasitology and immunology. The goal of microbiology is to increase the specific knowledge of a known microorganism and by extension counter the spread of harmful microorganisms and to learn practical applications of research results. A microbiologist studies the structure‚ metabolism‚ genetics and ecology of microorganisms such as bacteria‚ viruses‚ fungi or algae. A microbiologist
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Lab 1 – Ubiquity of Microbes Bacteria are the most widely distributed organisms in the biosphere. They are found in all different types of soil‚ water and even in the bodies of other living organisms. Every single place that humans have explored on the Earth‚ have shown to contain microbes. Bacteria are living organisms and like all living organisms‚ they require energy and carbon sources in order to metabolize and reproduce. And like all living organisms they respond to changes in their environment
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Microbiology Module 02 Homework Assignment Use the information presented in this module along with additional outside research to answer the questions: 1) Compare and contrast prokaryotic and eukaryotic. a) Prokaryotes and eukaryotes are two types of cells that are very different but share some certain properties such as methods of reproduction‚ protein synthesis‚ an organized metabolism‚ response to stimuli‚ and plasma membranes. One significant difference is that prokaryotes are without a cell
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