Proteus Vulgaris Proteus vulgaris is a gram negative‚ facultatively anaerobic‚ bacillus rodchemoheterotroph bacterium belongs to the family Enterobacteriaceae. It possesses peritrichous flagella‚ making it actively motile. P.vulgaris occurs naturally the intestional tracts of humans and animals‚ soil‚ fecal matter‚ polluted water‚ and raw meat. It is grouped with the enterobacteriacea and is an opportunistic pathogen of humans. In humans P.vulgaris is known to cause urinary tract
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liquid permeability of porous media. The apparatus used in the experiment is the liquid permeameter. The liquid used in this experiment is water. Three membrane samples of different thickness (0.1‚ 0.2‚ 0.3 cm) are used as the porous media. The determination of the permeability is carried out using elevated pressure test. Each sample is tested for 5 times at different values of pressure gradient which are 5‚ 10‚ 15‚ 20 and 30 psi. In order to obtain more accurate data‚ ensure that the membrane samples
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Part 1 ’’ A Measurement of Risk 1.1 Risk 1.2 Capital Asset Pricing Model The estimation of systematic risk (or ‘beta’) is central to the implementation of the capital asset pricing model (CAPM) for researchers and practitioners. Markowitz (1952) argued that investors should be concerned with holding efficient portfolios‚ that is‚ a portfolio offering the highest expected return for each level of risk. Sharpe (1964) and Lintner (1965) took Markowitz’s work one step further to develop the CAPM
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effects of stressful experimental treatments on living membranes we are going to examine how fresh beets roots react when they are exposed to different temperatures. Membranes are an important feature of plant cells and they act as a barrier that separates the interior of the cell from the external environment (Campbell 133). They organize specific chemicals and reactions into specific compartments within the cell. Generally‚ cell membranes consist of phospholipids bilayer that is impermeable to
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Sep 27 2009 15:44:17 GMT-0600 (Mountain Daylight Time) --------------------------------------------------------------------------Question 1 Differential permeability can also be described as: Correct: the allowance of only certain substances to pass through a membrane without hindrance. Compare the molecule size and the MWCO for the membrane. --------------------------------------------------------------------------Question 2 Passive transport includes which of the following processes? Correct:
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REVIEW SHEET EXERCISE 1 Cell Transport Mechanisms and Permeability NAME: LAB TIME/DATE: 1. Match each of the definitions in Column A with the appropriate term in Column B. Column A Column B __E__ term used to describe a solution that has a lower concentration of solutes compared to another solution _G___ term used to describe a solution that has a higher concentration of solutes compared to another solution _A___ the movement of molecules from an area of higher concentration to an area of
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variable) to compute the for each stock (the slope of the regression). How does this relate to the situation described in Question #2 above? REIT Brown Intercept -0.024278716 -0.01953843 Vanguard Index 500 Trust 0.147351433 1.163349646 The Beta for Brown is higher‚ so it makes sense that it is a riskier security. How might the expected returns for each stock relate to their respective levels of riskiness? Brown should have a higher expected return as it is more riskier. An investor
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Diabetes Beta- carotene is an organic compound categorized as a terpenoid (Gutiérrez‚ & Gonzalez‚ 2010). Naturally‚ it is a predecessor of vitamin A‚ and found in several yellow fruits and vegetables. These organic nutrients play a vital role in aiding vision‚ skin growth‚ and bone development. In addition to these crucial roles‚ Beta-carotene may be of significant help in regulating the blood sugar in diabetic persons (Gutiérrez‚ & Gonzalez‚ 2010). Human bodies regulate blood sugar levels with
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How to Calculate Beta Beta refers to the volatility of a particular stock compared against the volatility of the entire stock market or‚ in practice‚ a representative index of that market‚ such as the Standard and Poor ’s (S&P) 500. Beta is an indicator of how risky a particular stock is and is used to evaluate its expected rate of return. Beta is one of the fundamentals stock analysts consider when choosing stocks for their portfolios‚ along with price-to-earnings ratio‚ shareholder ’s equity
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THE EFFECT OF CHEMICALS AND TEMPERATURE ON MEMBRANE DESTRUCTION AND PERMEABILITY IN BEETROOT (Beta vulgaris) Introduction The cell membrane is made up primarily of phospholipids and proteins which contribute to its selectively permeable nature. The function and permeability of the cell membrane depends on its intact structure. When destroyed‚ the permeability of the cell membrane is disrupted causing cellular contents to leak out. The cell membrane can be destroyed by physical damage‚ chemicals
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