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Time It Takes Time Of Death
1,266 wordsOne of the first things that happens after death is that the temperature in the body starts to drop. Before the temperature in the body core drops, a temperature gradient must be established from the outside to the core. After this gradient has become established the body temperature will drop with a theoretically predictably rate. This fact can be used to estimate time of death. Even if one succeeds in predicting when the temperature of the body core was 37 degrees Celsius, one has to remember ...
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Cross Sectional R R
864 wordsDetermination of r for a Metallic Conductor To determine the resistivity (r) of a given sample of wire Physical factors that affect the resistance of a conductor are length, cross sectional area and a constant that depends upon the material called the resistivity. The resistance per unit length is the same all along a uniform wire so if the resistance of different lengths of a wire is found out, the resistivity can be calculated. Resistance of a material, R = Voltage / Current Resistance of a co...
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Atmospheric Perspective Linear Perspective
2,253 words... eater amount of binocular disparity. You have probably experienced a number of demonstrations that use binocular disparity to provide a sense of depth. A stereoscope is a viewing device that presents each eye with a slightly different photograph of the same scene, which generates the illusion of depth. The photographs are taken from slightly different perspectives, one approximating the view from the left eye and the other representing the view from the right eye. The View-Master, a children...
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Dry Ice Petri Dishes
1,905 wordsA particle cloud chamber is a device that makes visible to the human eye the presence of certain particles and cosmic rays. This paper will discuss the process in which a successful chamber prototype was developed. This paper will also discuss how the chamber utilizes the properties of a supersaturated environment to detect these particles. Finally, plans for the future development of a larger model to study the charge and energy of particles through the use of a magnetic field is presented. The...
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Electron Transport Hydrogen Ions
778 wordsElectron transport is the last phase and most important phase of cell respiration. It accounts for most of the ATP made in cell respiration. Cell respiration makes a total of thirty eight Atp's, two from Glycolysis, two from the Krebs cycle and thirty four from electron transports. Electron transport takes place after Glycolysis and the Krebs cycle. Glycolysis and the Krebs cycle make their ATP through substrate level Phosphorylation while electron transport makes its ATP through oxidative phosp...
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Plasma Membrane Permeable Membrane
777 wordsThe plasma membrane is the boundary of life; this selectively permeable membrane allows the cell to maintain a unique internal environment and to control the movement of materials into and out of the cell. The phospholipid bilayer (fluid music model) with specific membrane proteins accounts for he selective permeability of the membrane and passive and active transport mechanisms. Membrane phospholipids are amphipathic. Cell membranes are phospholipid bilayers with the hydrophobic hydrocarbon tai...
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Plasma Membrane Passive Transport
834 wordsBeing one of the most important components of a cell, the plasma membrane, or cell membrane plays a huge role in regulating how things get in and out of cells. The plasma membranes unique structure enables it to let only certain molecules pass through the cell. This ability is called selective permeability. Most of the plasma membrane in most cells is made up of a phospholipid bilayer with proteins either embedded into it or sticking out from either side of the membrane. The heads of the phospho...
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Permeable Membrane Semi Permeable
781 wordsOsmosis is the flow of water through a semi permeable membrane that blocks the transport of salts or other solutes through it. It is also defined as the net movement of water from an area of high concentration to a region of low concentration. Osmosis is a fundamental effect in all biological systems. When two water volumes are separated by a semi permeable membrane water will flow from the side of low solute concentration to the side of high solute concentration. If external pressure is applied...
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Knowledge And Experience Rest Of The World
1,746 wordsDiamagnetic's was discovered by Michael Faraday in 1846, but no one at the time thought that it could lead to any appreciable effects. William Thomson (Lord Kelvin), referring to levitation as the problem of 'Mohamed's coffin, ' had this to say: 'It will orally be impossible ever to observe this phenomenon, on account of the difficulty of getting a magnet strong enough, and a diamagnetic substance sufficiently light, as the [magnetic] forces are excessively feeble. ' Fields strong enough to lift...
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Visually Impaired Physically Handicapped
1,190 wordsCurrent Environment Analysis Today the world devotes special attention to the question of disability, striving to provide the various facilities required to ensure that every disabled person has work opportunities that will help him or her to become a productive member of society. Various institutions are cooperating in the area for the Disabled in an integrated approach and a programme to ensure that the question of disability will be dealt with in every regard: quality of services offered, eas...
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National Institute Of Health Period Of Time
801 wordsPressure Ulcers One to three million people develop pressure ulcers in the U. S. each year. Pressure ulcers reduce overall quality of life through pain, suffering, morbidity, and mortality and are a major burden on the health care system increasing staff time and cost. The skin is a waterproof protective physical barrier with a blood reservoir and bacterial defense. The skin absorbs light and synthesizes vitamin D. Dermal cells contain a precursor of vitamin D, which when activated by sunlight, ...
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Gallons Of Water Source Of Water
1,681 wordsEngineering can be defined as the putting together of things. This definition has summarized a profession that dates back to ancient times. Many things have been accomplished by early engineers. The great pyramids in Egypt for example are an engineering marvel still today. The massive structures look simple but they took great skill to construct. The complex ventilation systems and rooms took brilliant engineers to design. The people in that era had very few tools to help them build the pyramids...
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World War Ii End Of World War
1,119 wordsFinal Paper While looking for two designs to examine for this final paper, I came upon the New York Worlds Fair Poster designed by Joseph Binder and a poster entitled Victory 1945 by Shigeo Fukuda. In looking at both of these designs and comparing and contrasting them, I wish to show just how significantly large scale cultural issues can effect the collective conscious of a society and the resulting every day designs and images that they are subjected to. Although not much information exists sep...
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Cystic Fibrosis Gene Epithelial Cells
2,248 wordsCystic fibrosis Cystic Fibrosis Introduction Cystic fibrosis is an inherited autosomal recessive disease that exerts its main effects on the digestive system and the lungs. This disease is the most common genetic disorder amongst Caucasians. Cystic fibrosis affects about one in 2, 500 people, with one in twenty five being a heterozygote. With the use of antibiotics, the life span of a person afflicted with CF can be extended up to thirty years however, most die before the age of thirteen. 1 Sinc...
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Active Transport Membrane Potential
2,258 wordsEffects Of Solutions On Ion Transport Across Membranes Abstract Concentration gradients exist between two different salt molarity solutions on opposite sides of a membrane. Movement of ions across these sides can be achieved by either active or passive diffusion. In our first three experiments we used these concentration gradients to determine the characteristics of selective permeability of an artificial membrane to potassium chloride (KCl), the potential difference across the skin of a frog, R...
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Black And White Give The Picture Blue
493 wordsThe piece that seemed to stick out at the Foster Gallery exhibit was La Family by Hulleah Tsinnahjhinnie. This artwork was a digital print done on a computer and is really quite extraordinary. I decided to choose color as my formal element, since there seemed to be a lot of colors in this piece, and I love the use of color. Color, especially when shown with black and white, seem to jump off of the paper. They are also like candy for your eyes. This print had two tones of blue: a tertiary color o...
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Knowledge And Experience Rest Of The World
1,757 wordsDiamagnetic's was discovered by Michael Faraday in 1846, but no one at the time thought that it could lead to any appreciable effects. William Thomson (Lord Kelvin), referring to levitation as the problem of " Mohamed? s coffin, " had this to say: " It will ob ably be impossible ever to observe this phenomenon, on account of the difficulty of getting a magnet strong enough, and a diamagnetic substance sufficiently light, as the [magnetic] forces are excessively feeble. " Fiel...
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Atmospheric Perspective Depth Perception
4,488 wordsINTRODUCTION Perception Perception Perception INTRODUCTION Perception is defined as a process by which organisms interpret and organize sensation to produce a meaningful experience of the world. Sensation usually refers to the immediate, relatively unprocessed result of stimulation of sensory receptors in the eyes, ears, nose, tongue, or skin. Perception, on the other hand, better describes ones ultimate experience of the world and typically involves further processing of sensory input. In pract...
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Plasma Membrane Membrane Potential
2,379 wordsInvolvement of K+ in Leaf Movements During Sun tracking Introduction Many plants orient their leaves in response to directional light signals. Heliotropic movements, or movements that are affected by the sun, are common among plants belonging to the families Malvaceae, Fabaceae, Nyctaginaceae, and Oxalidaceae. The leaves of many plants, including Crotalaria pallida, exhibit dia heliotropic movement. C. pallida is a woody shrub native to South Africa. Its trifoliate leaves are connected to the pe...
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Cm Measuring Cylinder
4,557 wordsPhysics CAT One Extended Untitled Physics CAT One Extended Practical Investigation Report Student Number: Purpose The Purpose of this investigation is to explore how the terminal velocity of a sphere falling through glycerol varies with the temperature of the glycerol and the size of the sphere. Introduction In the early stages of the project it was intended to investigate how the speed of a sphere falling through glycerol varies with the size of the sphere. However, after analysis it was decide...
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