known as S. typhimurium‚ is a Gram-negative‚ rod-shaped‚ flagellated‚ facultative anaerobe microorganism. S. typhimurium can be found in animal feces and raw contaminated foods such as poultry‚ beefs‚ sea foods‚ tainted fruits and vegetables (3‚ 5). Some of the vectors of S .typhimurium are birds‚ reptiles‚ and aquatic vertebrates (5). After the consumption of the bacterium‚ S. typhimurium is found living and growing in the mammalian GI tract. People who are more likely to be infected with S. typhimurium
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February 25‚ 2013 Lab: Equilibrium of Forces Purpose/Objective: The objective of this lab was to test the first condition of equilibrium for a set of concurrent coplanar forces‚ prove Lami’s Theorem‚ and to determine an unknown mass using rules of equilibrium. Procedure: In the lab‚ we wanted to find at what angles three separate weights would create a net zero force on a force table so that the ring holding the weights was exactly centered in the middle
Free Force Mass General relativity
of the Moon from the Earth Diameter of the Moon Diameter of the Sun g G e c k h h me mp mn k eo mo 9.8 m/s2 5 980 cm/s2 5 32.2 ft/s2 N-m2 6.67 3 10 211 kg2 1.60 3 10–19 C 3.0 3 108 m/s 5 3.0 3 1010 cm/s 5 1.86 3 105 mi/s 1.38 3 10–23 J/K 6.63 3 10–34 J-s 5 4.14 310–15 eV-s h/2π 5 1.05 3 10–34 J-s 5 6.58 3 10–16 eV-s 9.11 3 10–31 kg 5 5.49 × 10–4 u 4 0.511 MeV 1.673 3 10–27 kg 5 1.0078 u 4 938.3 MeV 1.675 3 10–27 kg 5 1.00867 u 4 939.3 MeV 1/4πeo 5 9.0 3 109 N-m2/C2 8.85 3 10–12 C2/N-m2 4π 3 10–7
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BioScience 100A Online Virtual Lab Report: Part 2 Due by: 11:59 PM PST on the final Saturday of class Updated 9/10/11 Directions: 1. Type your answers‚ observations‚ and results in bold. 2. Save your report often as you fill it out‚ so as not to lose information. 3. Use the report form as a single document‚ do not turn in separate reports for each lab 4. Use the ‘Save As’ option to save your file as a Word 97 .doc file 5. Save your lab report with this name: Last name
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Ashley Huston ILab‚ Week #2 CATIONS AND ANION LAB Introduction The purpose of this lab is to demonstrate a double-replacement reaction of ionic compounds. In this experiment‚ you will combine two ionic compounds. Both compounds are soluble in water. If a response happens between these two compounds‚ then a precipitate will form because one of the two resultant compounds is not soluble in water. This is a hint that a reaction took place. Cations are positively charged ions that are attracted
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peroxidase. The three conditions tested were the effect of peroxidase concentration on the rate of the experiment‚ the effect of pH of the rate of peroxidase activity‚ and the effect of temperature on the rate of peroxidase activity. During the lab‚ the lab group tested 7 test tubes‚ including 1 blank‚ with different amounts of pH 5 buffer‚ H2O2‚ Peroxidase‚ and Guaiacol. After the certain amount of mL per substance was mixed‚ the absorbance readings for the effect of peroxidase concentration were
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certain task. In this lab we examined motor unit recruitment and muscle fatigue by electromyography (EMG) with dynamometry (DYN). When the motor unit in the muscle is activated signals are then generated‚ which result in muscle contraction. The impulse generated are a bit weak‚ yet can still be detected by the electrodes‚ EMG and is coupled by a measurements of power‚ DYN. When all the motor units reach its maximum strength the muscles will fatigue. Finally‚ the objectives of this lab were to determine
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THE S-CURVE Introduction The first time most project managers become aware of the existence of S Curves is when they are requested by the client or senior management to include one in their next progress report. The following explains what the mysterious S Curve is‚ why it is an important project management tool‚ and how to generate one. What is a S Curve? A S Curve is defined as "a display of cumulative costs‚ labour hours or other quantities plotted against time. The name derives from
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Collisions in Two Dimensions Abstract: This lab was conducted to investigate the theories of conservation of momentum and kinetic energy in different types of 2D collisions. In order to do this‚ both an elastic and inelastic collision was conducted on an air table with pucks. A video was taken and analyzed to determine velocity‚ allowing for future finding of momentum and kinetic energy values. By finding these‚ it was possible to determine which kind of collision took place. With low values of
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Multimedia Graphic Bell Labs: A Hive of Invention But we idealize America’s present culture of innovation too much. In fact‚ our trailblazing digital firms may not be the hothouse environments for creativity we might think. I find myself arriving at these doubts after spending five years looking at the innovative process at Bell Labs‚ the onetime research and development organization of the country’s formerly monopolistic telephone company‚ AT&T. Why study Bell Labs? It offers a number of lessons
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