Meningitis is a bacterial infection of the membranes covering the brain and spinal cord. A family who lived in Geneva‚ Switzerland was first diagnosed with the disease in 1805. It was not until 1866‚ that the disease traveled its way into the United States. Professor Anton Weichselbaum discovered the cause of cerebro-spinal meningitis illness in 1887. There are five types of meningitis: bacterial meningitis‚ viral meningitis‚ parasitic meningitis‚ fungal meningitis‚ and non-infectious meningitis
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environment. Pathogens come in a wide variety. The types are fungal‚ bacterial‚ viral‚ and other parasites. All pathogens can be dangerous‚ but two of them are more dangerous. These two types that more dangerous are fungal and bacterial. While both fungal and bacterial pathogens cause illness‚ they differ in the way they are transmitted‚ the way they are treated‚ and the diseases they cause. First‚ the way fungal and bacterial pathogens are transmitted is different. Most fungal pathogens
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Abstract: The purpose of this lab was to identify an unknown bacteria culture using differential tests. The identification of the unknown culture was accomplished by identifying the bacteria based on its specific metabolic characteristics and morphology. It is suggested that culture 11 is a sample of Enterobacter aerogenes. Introduction: This experiment was centered on metabolic and biochemical testing procedures. The rationale of performing these tests was to distinguish six different microbes
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Procedures were followed as stated in the lab manual and biochemical test handouts. The first procedure that was done was a gram stain followed by a streak of the unknown on a TSA plate in order to determine the gram reaction and observe the colony morphology. After that‚ specific biochemical tests were performed for gram positive‚ since unknown number five was determined to be gram positive rod. The other tests were performed in this order: Mannitol Salt (MSA) streak‚ Blood Agar streak‚ Catalase test
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the effectiveness of different brands of hand soap in killing Escherichia Coli. I did this by creating dilutions of Escherichia Coli in varying concentrations of different brands of hand soap. They were allowed to incubate until bacterial growth occurred and then the bacterial density was determined by an OD600 test in a spectrophotometer. The data suggests that higher concentrations of soap are needed for greater effectiveness in killing bacteria. Also‚ the data shows that certain hand soaps were more
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some of the tests were used only for gram (+) others were even more specific and used only for cocci bacteria .The first procedure have been done was to observe and record the morphology of the unknown sample. However‚ Gram stain should be done to be sure that unknown sample were gram positive and to identify cells morphology. After that biochemical tests were chosen for unknown identification . first of all was done the catalase test to differentiate between the two types of cocci bacteria ( Staphylococcus
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Lecture Two The nature of the rules - the underlying patterns (rules) of language are not obvious - we have unconscious knowledge of patterns and rules of our own language If a linguist identifies a sentence as "grammatical" this means that the sentence conforms to the hypothesized rules of the mental grammar When a linguist uses the word "Grammar" they mean: mental grammar: is in our (individual) heads - shared by speakers if a language‚ with some variation‚= linguistic competence - a
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Prokaryotic Cell Structure Bacterial Cell Structure Mariana Ruiz Villarreal/Wikimedia Commons Prokaryotes are single-celled organisms that are the earliest and most primitive forms of life on earth. As organized in the Three Domain System‚ prokaryotes include bacteria and archaeans. Prokaryotes are able to live and thrive in various types of environments including extreme habitats such as hydrothermal vents‚ hot springs‚ swamps‚ wetlands‚ and the guts of animals. Prokaryotic Cell Structure
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decolorizing activity by an effectual bacterial isolates‚ liquid medium was used. Based on the relative aptitude of the decolorization of diverse isolates‚ three most excellent performing bacterial isolates (1‚ 2 & 3) with more than 90% of decolorizing activity were preferred for more experiments (Data not shown). 3.1 Biodecolorization of Remazol Black-B by selected bacterial isolates Microbial decolorization of Remazol Black-B by the most promising selected bacterial isolates (1‚ 2 & 3) was corroborated
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