that a few of the slides he’d been working on had been contaminated by fungus. Upon noting that the staphylococcus colonize bordering the fungus had died he began asking more questions. Namely what was it about the fungus that caused it to kill the bacteria? Through more research he was able to single out a substance that the fungus was producing as the result of its biological processes. He called this substance “mould juice” for
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Bacteria: a benefit or a hazard? Bacteria is something we are all reminded of on a daily basis by merely switching on our televisions where we are bombarded with advertisements for both ‘good’ and ‘bad’ bacteria. Contrary to the view of the past when only so-called ‘bad’ bacteria was ever talked about‚ so what has changed? This essay will address the facts about bacteria including methods used in identifying bacteria as well as looking at specific examples of how they can be both helpful and harmful
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SOIL EROSION REDUCTION USING CORN AND GRASS A Research Proposal Presented to the Faculty of Civil Engineering Department‚ School of Engineering‚ Architecture and Fine Arts. University of Saint Louis‚ Tuguegarao City. In Partial Fulfillment of the Requirements of Research Methods in CE for the Degree of Bachelor of Science in Civil Engineering Adriann Nathaniel Dela Rosa Romeo Bias Jr. Kneil Patrick Alviar 2014 APPROVAL SHEET In partial Fulfillment of the Requirements
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Soil FRQ A) One chemical soil test we could do is a pH level test so we are able to tell what crops can grow in what areas. Other chemical tests include salinity‚ organic content (humus)‚ or the iron exchange capacity. One Physical Soil test we can do is pick up a handful of it and rub it together with our fingers to tell if it’s a soil heavy in clay‚ silt‚ or sand. Other physical tests include water-holding capacity porosity‚ moisture content‚ soil structure‚ or color. By completing these tests
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Yannelly De Leon General Intent vs. Specific Intent “Intent: A determination to perform a particular act or to act in a particular manner for a specific reason; an aim or design; a resolution to use a certain means to reach an end.” [1] The difference between General Intent vs. Specific Intent is when the defendant commits a crime with a specific end in mind and general intent is when a defendant commits a crime with no specific result in mind. General intent crime includes but is not limited
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Effects of Different Antibiotics on Bacteria Because of their small size‚ rapid rate of reproduction‚ and relatively simple structure‚ bacteria are excellent subjects for laboratory studies. This investigation will introduce you to techniques of microbiology that will be of use to you throughout your biological work. Procedure 1. Heat the test tubes of sterile agar medium in the water bath until the agar melts. 2. Remove the test tubes from the water bath. Let them cool enough to hold in your
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smear. I placed a drop of water in middle of the slide‚ then put in small amount of E. coli and mixed well. The slide was allowed to air dry. When it was completely dry‚ I passed the slide over the flame for 3 times to fix the cells to the slide. For the staining part‚ I put a drop of methylene blue onto the smear for 30 second‚ rinsed with water‚ blotted dry and observed the slide using oil immersion. Gram Stain For comparison purpose‚ I used two bacteria for this experiment. They
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Flesh-eating bacteria strikes in Florida On June 16th‚ 26 year-old Cason Yeager went for a swim in Florida in Hernando County and later died from contracting the flesh-eating bacteria‚ Vibrio Vulnificus. This bacteria can be found worldwide‚ most particularly in the warm coastal regions but there have been reports in other parts of the world in non-warm waters. According to the CDC in 2013‚ the case count of the vibrio vulnificus was 104 in thirteen states with six hospitalizations. No deaths‚ but
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some people see bacteria as something that is harmful and that causes nothing but illness and infections. Bacteria can actually be helpful as well. It can provide vitamins to your body‚ help digestion‚ destroy bad organisms‚ help make medicines and also help out with the environment. In this research paper‚ it will describe two bacteria that are helpful and sometimes harmful to humans and the environment‚ which are E. coli and Lactobacillus Acidophilus. E. coli E. coli is the bacteria that live in
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undertake‚ particularly for a group of students with nothing but a shovel. The soil here is hard and compact‚ full of pebbles and lava rocks. Attempting to dig a pit would have been toilsome and ultimately fruitless. Fortunately‚ while on a fieldtrip‚ my classmates and I came upon an archaeological dig site. It was basically a big pit‚ about five feet deep‚ that was perfect for our observations. There were obvious changes in the soil through the different levels‚ and the archaeologist on location provided
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