Isolation of Casein from Milk In this experiment‚ casein was isolated from milk by means of isoelectric precipitation. A percent yield of % was obtained by the group. Introduction Milk is an opaque white or bluish-white liquid secreted by the mammary glands of female mammals‚ serving for the nourishment of their young. This liquid‚ as secreted by cows‚ goats or certain other animals are used by humans as food and as a source of dairy products such as cheese and butter. Milk composition differs
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! Isolation of the Components of BC Powder Introduction Aspirin‚ Caffeine and Salicylamide were extracted from an over-the-counter pain reliever (BC Powder). These components were separated by manipulating their solubilities by adjusting the acidity and basicity of the solution. By doing this‚ the three components were forced into conjugate acid (or base) forms‚ causing selective solubility in either an aqueous or organic solvent. These layers were then separated by use of a separation funnel
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Plate Tectonics Plate Tectonics The theory of plate tectonics was developed in the 1960’s and states that the earth is broken into a number of shifting plates. Plate tectonics also provides geology with a comprehensive theory of how the earth’s crust moves. In this essay I will explain the different types of plate movements‚ how the plates move and how this movement affects earthquakes and volcanoes. To begin‚ there are three different types of plate movement; divergent boundaries‚ convergent
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efforts of researchers‚ they have one solution‚ namely systems License Plate Recognition (LPR). License Plate Recognition is inverted in 1976 and the prototype of the system implemented in1979 in Police Scientific Development Branch in United Kingdom’s for Safety and security in Sulaiman et al. (2013). Du et al. (2012)‚ Kulkarni et al. (2009)
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Types of volcanism associated with plate margins There are two types of plate margin. When there is a boundary between two diverging tectonic plates‚ such as between the North American and Eurasian plates‚ it is known as a constructive plate margin. This is because it recognises the importance of magma rising up from the mantle to create new crustal rock. The boundary between two converging plates is known as a destructive plate margin‚ as it is responsible for more violent seismic activity‚ volcanoes
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Name: Date of Experiment: November 20‚ 2012 Group mates: Date of Submission: November 28‚ 2012 Experiment No. 1 ISOLATION OF CAFFEINE FROM TEA I. Introduction Caffeine is a very common substance and is found in coffee‚ tea‚ soft drinks‚ chocolate‚ and "stay-awake" pills such as Vivarin. It can be synthesized or isolated from natural sources. Caffeine constitutes approximately 4% of tea and coffee leaves‚ and is also found in cola nuts and cacao beans. Caffeine is a member
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CARIBBEAN PLATE The Caribbean Plate is a mostly oceanic tectonic plate underlying Central America and the Caribbean Sea off the north coast of South America. Roughly 3.2 million square kilometers (1.2 million square miles) in area‚ the Caribbean Plate borders the North American Plate‚ the South American Plate‚ the Nazca Plate and the Cocos Plate. These borders are regions of intense seismic activity‚ including frequent earthquakes‚ occasional tsunamis‚ and volcanic eruptions. The Caribbean Plate is a
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I. Product Background A. Introduction In this highly luxurious extravagant world‚ food and other beverages has always been one of the things which maintain the mainstream of life. Aside from being one of the basics for survival‚ gatherings are also made perfect by food preparation and stress is now often associated with food. This activities show that food intake nowadays is far different from the conventional times. Furthermore‚ this lavish lifestyle most of the people have results in an
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driving with no insurance or with suspended licenses. There are people with warrants riding around every day like they do not have a care in the world‚ but with the help of automated license plate recognition these numbers are decreased. Law enforcement all over the world are adopting the automated license plate recognition technology to help them fight crime and make their job just a little easier. This technology helps law enforcement detect cars that have been stolen‚ cars that have not been registered
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(centered in Nevada this area is about 1500 kilometers wide and runs about 4000 kilometers North/South). Continental crust is thickest beneath mountain ranges and extends into the mantle. Plate Tectonics * The Earth’s surface is made up of a series of large plates (like pieces of a giant jigsaw puzzle). * These plates are in constant motion travelling at a few centimetres per year. * The ocean floors are
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