Cardiovascular System Anatomy & Physiology The heart is the pump responsible for maintaining adequate circulation of oxygenated blood around the vascular network of the body. It is a four-chamber pump‚ with the right side receiving deoxygenated blood from the body at low presure and pumping it to the lungs (the pulmonary circulation) and the left side receiving oxygenated blood from the lungs and pumping it at high pressure around the body (the systemic circulation). The myocardium (cardiac
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Research Question How does changing the concentration of Zn2+(aq) ions (0.2‚ 0.4‚ 0.6‚ 0.8‚ 1.0) (moldm-3) affect the voltage (V) of the voltaic cell consisting of Zinc and Copper half cells? Aim To see the relationship between increasing the concentration of Zinc ions and the voltage that is obtained from voltaic cell. The concentration of zinc ions can be directly manipulated by changing the concentration of a zinc sulphate aqueous solution‚ and the voltage will be measured using an electronic
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DETERMINATION OF FRUIT ACIDS BY TITRATION AND CALCULATION OF THE SUGAR/ACID RATIO It is the sugar/acid ratio which contributes towards giving many fruits their characteristic flavour and so is an indicator of commercial and organoleptic ripeness. At the beginning of the ripening process the sugar/acid ratio is low‚ because of low sugar content and high fruit acid content‚ this makes the fruit taste sour. During the ripening process the fruit acids are degraded‚ the sugar content increases and
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TOPIC 1: RATES AND CHEMICAL EQUILIBRIUM QUESTION 1: (Taken from the DoE Physical Sciences Feb-March Paper 2 2009) Antacids are used to relieve indigestion. Indigestion is the condition when the stomach produces too much acid resulting in an uncomfortable and painful feeling. A certain antacid tablet dissolves in water and reacts with the acid in the stomach to release carbon dioxide gas. 1.1 Name the type of chemical reaction that explains why antacids bring relief from indigestion
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The Brain Fingerprinting Through Digital Electroencephalography Signal Technique ABSTRACT A brain computer interaction has been developed to record the brain signal / electric activity through Digital Electroencephalography. The Brain Fingerprinting is a advanced computer-based technology to determine the falsely accused innocent suspects of a crime accurately and scientifically by measuring brain-wave responses to crime-relevant words or pictures presented on a computer screen. By using
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Chemistry Title: voltaic cell experiment a voltaic cell is a device made from connecting two different metals together and immersing the combined piece into some sort of solution that creates conductive atmosphere ‚ the general purpose of a voltaic cell is to convert the chemical reaction between the metals and the solution into an electrical charge ‚ Hypothesis: the voltage produced by magnesium and cupper = the sum of the voltage produced by magnasium and iron ; and iron and cupper
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A Psychological Report showing the effects of differing sounds on Galvanic Skin Response‚ Respiration and Heart Rate | | By Eunan McCloskey | 12/11/2009 | | Table of Contents Title Page....................................................................................................................................1 Table of Contents.......................................................................................................................2 Abstract.................
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*monitor History of Monitor A long time has passed since the first computer monitors were introduced. Way back when these units were first introduced‚ they were available in monochrome only and most of the computer monitors used to have a bright green display on a jet black background. These were known as monochrome monitors and they did not use to have high quality displays. The displays that we see on the monitors are caused by the electrons directed on a phosphor coating on the screen by the
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Activity 2.2.4: It’s All in the Reflexes Introduction Although we are all different and have our unique identity‚ there are times when we behave in exactly the same way. We blink if something is headed toward our eyes. We pull our hands away quickly if we touch something hot or sharp. The automatic response of a muscle to a stimulus is called a reflex. This action is controlled by the human nervous system and is considered an involuntary response – it happens without our even having to think
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Question 1 Consider the company’s operations during the years from 1975 to 1979‚ and answer the following questions: a. How has the above complex approach actually worked‚ over these four years? What was the outlook (as of the case date) for further progress in this matter? In 1975 Chaparral Steel commissioned minimill and started production. Minimills are different from traditional integrated steel plants. In minimill an Electric Arc Furnace (EAF) is used for steel making purpose and in downstream
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