What Is Photography? Photography is the art‚ science and practice of creating durable images by recording light or other electromagnetic radiation‚ either chemically by means of a light-sensitive material such as photographic film‚ or electronically by means of an image sensor. The result in an electronic image sensor is an electrical charge at each pixel‚ which is electronically processed and stored in a digital image file for subsequent display or processing. Typically‚ a lens is used to focus
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Title Membrane Permeability Aim To determine the effect of various chemicals and high temperature on the membrane permeability of beetroot Hypothesis Organic solvent and high temperature will destroy the cell membrane and make it permeable to the red pigment. The higher the concentration of the alcohol‚ the greater will be this effect. Principle Beetroot is the material used in this experiment to demonstrate the effects of high temperature and chemicals on the permeability of the cell membranes
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20oC‚ 40oC ‚ 60oC and 80oC Each time a piece of beetroot is removed from the heated water‚ it will be left in the distilled water for exactly 30 minutes‚ before being discarded. The fluid in each of the test tubes will be analysed using a colorimeter and compared against the control‚ which is distilled water to check for any variations in the colour of the water. The variables kept constant • The same diameter corer is used so to keep the surface area of each beetroot piece the same
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An experiment to determine the amount of urea in a specimen of urine. Introduction. Metabolism produces a number of toxic by-products‚ particularly the nitrogenous wastes that result from the breakdown of proteins and nucleic acids. Amino (NH2) groups are the result of such metabolic reactions and can be toxic if ammonia (NH3) is formed from them. Ammonia tends to raise the pH of bodily fluids and interfere with membrane transport functions. To avoid this the amino groups are converted
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It affects the titrant value because the end point of the complexometric titration is determined by what I perceived as; therefore I should use a colorimeter or other computerized measurement devices instead. Lastly‚ there was a large amount of hydroxy naphthol blue indicator (HNB) being used for complexometric titration. The HNB indicator affects the volume of solution and hence the concentration in
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the listed light ranges that which cover around 200nm - 2500nm using different calibrations and controls. Calibrations are needed on the machine‚ within these ranges of light‚ using standards which vary in type depending on the wavelength of the photometric determination. An example for spectrophotometry experiment is used is the determination of the solution equilibrium constant. A specific chemical reaction in a solution may occur in a reverse and forward direction where products break down into
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To investigate the effect of temperature on an enzyme controlled reaction Introduction and planning For the investigation of enzymes‚ I am going to conduct an experiment to see how temperature can affect the rate of reaction of enzymes by testing it with starch. The enzyme that we are going to use is called amylase. We are going to test this enzyme with starch. By mixing amylase and starch solutions together under different temperature conditions‚ we can record the rate of reaction by taking a
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commercial kit according to Picrate method (Cook‚ 1975). Serum uric acid level was determined using commercially available Biosystems Uric acid kit by Uricase method (Fossati et al.‚ 1980). Estimation of serum sodium and potassium was done by flame photometric method (Chuang et al.‚
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template matching techniques applied to a set of salient facial features‚ providing a sort of compressed face representation. Recognition algorithms can be divided into two main approaches‚ geometric‚ which look at distinguishing features‚ or photometric‚ which is a statistical approach that distills an image into values and compares the values with templates to eliminate variances. Popular recognition algorithms include Principal Component Analysis using Eigen-faces‚ Linear Discriminate Analysis
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NAME: EDWARD AFUTU INDEX NO: 8030212 EXPERIMENT: I.2.2.2. DEMONSTRATOR: MISS NAOMI KABIRI
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