following Aβ-injection [19]. 2.5. Behavioral test: Morris water maze (MVM) 2.5.1. Apparatus The Morris water maze test was conducted as described [20‚ 21]. The maze consisted of a circular pool (200 cm in diameter) filled with water (23±2°C) to a depth of 40cm. The circular pool divided into four arbitrary quadrants. A transparent Plexiglas platform (the only escapable thing from the water) 10cm in diameter was submerged 2cm underneath the water surface at the midpoint of one quadrant. There were many
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Purpose: The purpose of this lab was to determine the freezing point of pure water‚ the experimental van’t Hoff factor for a substance and the molar mass of an unknown solution. Reagents: 25mL deionized Water ¼ to ½ inches of rock salt 25mL Sodium Nitrate (NaNO3 ) 25mL unknown solution – handle unknown solution carefully Procedure: For part 1‚ the freezing point of deionized water was determined. An ice bath was prepared by filling a 600mL beaker ¾ full of ice and covered with ¼ to
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Hardness Testing and Elastic/Plastic Deformation of Cantilever Beam February 9‚ 2012 Abstract This experiment examined the effect of a load placed on the end of a cantilever beam as well as the hardness of three different metals using the QV-700 Universal Hardness Tester. Introduction The overall purpose of this experiment is to become more familiar with experimental processes which will be used continuously throughout the semester. The first process was indentation hardness testing
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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Popcorn Lab Haley Hardin Period 2 Www.nasa.gov Nasa is a government sponsored agency focusing on science. http://www.nasa.gov/audience/forkids/home/popcorn.html September 10‚ 2004 February 28‚ 2013 Nasa: National Aeronautics and Space Administration is a government sponsored foundation and has an entire section on their webpage focused on educating today’s youth. The topic of the article is how popcorn pops. The article is an informational one on how popcorn pops. * Popcorn was found
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What is Alkaline Water? Alkaline water‚ also commonly known as ionized water‚ is water that has a pH level greater than seven. This water is generally produced with the aid of a faucet-based water ionizer‚ or "alkalizer" and features a number of health benefits. Making Alkaline Water These are some of the possible sources of alkaline water: * Lemon (& Lime) Water * pH Drops * Alkalising Powder * Mainstream Water Filters * Water Distillers * Reverse Osmosis * Alkaline
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of purified water again. Due to the people of the United States drinking billions of gallons of water daily‚ the amount of purified water we drink is starting to run out which is causing a problem already. Psychological studies have shown humans still don’t accept water being reused even after knowing the water is purified and perfectly clean. Advocates are still against ultraviolet machines being used to clean and purify water. While some people believe that drinking recycled water is both repulsive
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The purpose of this lab was to determine how an excess amount of liquid‚ which was water‚ Gatorade and wine in this case‚ along with an excess amount of solute‚ which was the 7g NaCl pill‚ would affect the kidneys and the osmolarity of urine. Measurements of urine volume‚ specific gravity and chloride concentrations were recorded in order to investigate this. Our hypothesis stated that the volume of urine would increase for all groups other than the group drinking 80 ml of water along with taking
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Sheet - I (Water Treatment) 1 What are the specifications of water for various industries? 2. Why does hard water consume a lot of soap? 3. What is the difference between soft and sterilized water? 4. State chemical reactions‚ which remove bicarbonate hardness and justify your answer 5. Why is NH3-NH4Cl buffer added in the determination of hardness of water? 6. Discuss which of the following substances will increase‚ decrease or have no effect on the hardness of water: Ca (OH)2
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1.0 WATER QUALITY LESSON OUTCOME: * To identify the physical water quality parameters such as suspended solids‚ turbidity‚ color‚ taste and odor and temperature. * To calculate the solids parameter * To identify the chemical water quality parameters such as total dissolved solid‚ alkalinity and hardness * To calculate the water alkalinity and hardness * To demonstrate the biological water quality parameters such as pathogens and indicators Water Quality Parameter
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