Following, to determine how many bacteria are in the mouth, researchers have measured the weight of all the bacteria on the teeth. The weight of the mentioned bacteria is 10 mg. But since the teeth are only 1/20 of all oral surfaces, the 10 mg is multiplied by 20 to find the total weight, which is 200 mg. Another fact is that 1 mg of oral biomass inhabits 100 million bacteria. So, then, the two values, 100 million and 200mg would need to be multiplied to
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S.NO TOPICS PAGE# 01 Object, Introduction, Method 01. 1, 2 02 Method 02, Method 03. 3 03 Method 04, Method 05. 4, 5 04 References. 6,7 OBJECT: To determine the presence of Vitamin C by number of many methods. INTRODUCTION: Vitamin C is powerful antioxidant and it is also known as ascorbic acid and found mostly in fruits and vegetables it helps the body form and maintain connective tissue including bone, blood vessel and skin. Most experts recommended that Vitamin C from a diet high in fruits and
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of Myasthenia Gravis was in early 1970’s and its condition causes a breakdown in communication between nerves and muscles. This characterization considers to cause highly changes of weakness of the skeletal muscles and it can be harder for operation. MG
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Aviation Lubricants in Russia Today and Future 2nd International Conference Lubricants Russia - 2006 Moscow 22 November 2006 P. A. Mikheichev, O. A. Lebedev, FSUE GosNII GA, Moscow Lubricants used in Russian Civil Aviation Mineral-based oils MS-8P aviation oil MS-20 aviation oil SM-4.5 oil mix TC-hyp transmission oil ОСТ 38.01163 ГОСТ 21743 ОСТ 54-3-175-72 ТУ 38.1011332 Synthetic oils VNII NP 50-1-4f oil VNII NP 50-1-4u oil ГОСТ 13076 ТУ 38.401-58-12 Polyalphaolefin oils IPM-10 VO-12
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Dilutions of the 300x stock CuSO4 volume to be made (mL) concentration to be made (x) 5 150x 7 30x 5 15x 5 3x 4 Calculations Volume of stock to use Solution preparation diagram 1x 1. Prepare 25mL of 300-mg/mL CuSO4 solution. Mix well. Do not use previously made solutions. consider this a 300x stock solution. A. Show the calculations for the solution preparation and draw a diagram of how it is Gustavo Duran Per#5 made B. Determine the % mass/volume
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F=BIlsinθ When the electromagnet is placed near to the permanent magnet, they will experience magnetic force according to Newton’s 3rd law of motion. F=mg F=BIlsinθ=mg Presentation The hypothesis of the experiment stated that the magnetic force is directly proportional to the sine of the angle. y=mx+c mg=BIl(sinθ)+0 Results Magnetic force, F=mg g=9.8ms-2 I = 0.96A The angle between the conductor and the magnetic field, θ(°) | sin θ | The reading of the electronic weighing balance, m(g)
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The purpose of this lab experiment was to observe effects of caffeine and nicotine on California Black worms, also known as Lumbriculus variegatus on the circulatory system. We observed the pulsation rate of the black worm in three separate conditions. The blackworm were placed in the spring water, the control to use as a comparison with the blackworms in the drug solutions of caffeine and nicotine. We hypothesized that the pulsation rate would increase by caffeine and decrease by nicotine. The hypothesis
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ARTIKEL PENELITIAN OUTREACH PROGRAM KEGIATAN I-MHERE UNSRAT BANTUAN PENYELESAIAN STUDI (STUDENT GRANT) TAHUN 2010 STUDI FLUKTUASI KEBUTUHAN OKSIGEN KIMIAWI PADA BEBERAPA SALURAN PEMBUANGAN DI KELURAHAN WENANG UTARA DAN KELURAHAN WENANG SELATAN YANG BERMUARA KE TELUK MANADO Oleh : Mustika Kelana Tarigan/99 053 188 ABSTRAC Mustika Kelana Tarigan. 99 053 188. Chemical Oxygen Demand Fluctuations Studies On Some Points Disposal in North Wenang Village and South Wenang Village into the
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The objective of the experiment was to synthesize a ketone into an alcohol using a Grignard reagent. The reagents used were Mg and Bromobenzene to first create the Grignard reagent, and then Acetophenone was added to synthesize an alcohol. In preparation of the Grignard reagent, the Mg and Bromobenzene solution turned the proper brown color after being initiated and refluxed, indicating a Grignard has been made. Then, Acetophenone was added to the solution and heated in a sand bath and refluxed.
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Melatonin: The Myths and Facts Melatonin is a hormone produced in the pineal gland. The pineal gland is about the size of a pea and is located in the center of the brain (http://www.milatonin.com/melfaq.htm). Melatonin is secreted at night or in the dark (http://www.ceri.com/melaton.htm). It is used to regulate the sleeping cycle. It is also found to correlate with a lot of other functions and problems in the body. Because of its many uses, melatonin is being manufactured bypharmaceutical companies
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