Ionic mechanism and propagation of action potentials. The action potential is the result of a large‚ sudden increase in sodium permeability of the membrane. The resulting rush of sodium ions into the membrane and accumulation of positive charge on its inner surface drives the potential towards Ena. This is followed by repolarisation‚ whereby there is a large increase in the membranes permeability to potassium ions‚ hence the membrane returns to Ek. Explanation of the (ionic) mechanisms underlying
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1. Type of basic mechanisms for exchange rates a). Free float Free floating or clean float is a type of country’s exchange rate regime where a currency’s value is allowed to fluctuate according to the foreign exchange market. Free floating exchange rate is determined by the interaction of currency supplies and demands with no government intervention. It always termed “self- correcting’ as if any differences in supply and demand‚ the exchange rate will automatically be corrected in the market
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Stress and Coping Theories H. W. Krohnea a Johannes Gutenberg-Universität Mainz Germany Available online 2002. Abstract This article first presents two theories representing distinct approaches to the field of stress research: Selye ’s theory of `systemic stress ’ based in physiology and psychobiology‚ and the `psychological stress ’ model developed by Lazarus. In the second part‚ the concept of coping is described. Coping theories may be classified according to two independent parameters:
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The different cell membrane transport mechanisms The cell membrane is referred to as a ‘fluid mosaic model’ because the protein part within the cell membrane used to be though of as an even layer spread over the outside and the inside of the phospholipid. Now we are starting to think that it is spread unevenly‚ more like a mosaic than a layer. The phospholipid part of the cell membrane is fluid; this means that its molecules are constantly moving about. Through the molecules constantly moving
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CH 3 Mechanisms of Attention: Monitoring and Noticing Information I. Attention: What Is It? A. Basic Characteristics 1-Limited capacity − Visual attention limits are described with a spotlight metaphor − Auditory attention limits are described with gateway metaphor 2- Flexibility − Easily shift attention based on situational demands 3- Voluntary control − We can control how we direct our attention B. Pre-Attentive vs. Post-Attentive Processing
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DIALOGUE Working Paper No. 40 Employee participation in India Dr. Ratna Sen Industrial and Employment Relations Department (DIALOGUE) August 2012 ILO Decent Work Team for South Asia and Country Office for India Working Paper No. 40 Employee participation in India Dr. Ratna Sen Industrial and Employment Relations Department International Labour Office • Geneva ILO Decent Work Team for South Asia and Country Office for India August 2012 Copyright © International Labour
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Arleth Joy Tolentino AP Language and Composition Mrs. Shiraki December 4‚ 2012 Government and American Citizens; A Working Mechanism As stated by the Declaration of Independence‚ “We hold these truths to be self-evident‚ that all men are created equal‚ that they are endowed by their Creator with certain unalienable Rights‚ that among these are Life‚ Liberty and the pursuit of Happiness…Whenever any Form of Government becomes destructive of these ends‚ it is the Right of the People to alter or
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For Learning Centre use only Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Review Sheet Results 1. 2. Describe two Variables that affect the rate of diffusion. The two variables that affect the rate of diffusion are: A. The size of the molecule. The larger molecule will diffuse more slowly than the smaller molecule. B. The nature of plasma membrane. If the membrane is composed of lipid portion.‚ only lipid soluble molecules can pass through while water molecules
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Reproductive Isolating Mechanisms In the 1940s‚ Ernst Mayr coined the term Biological Species Concept that was subsequently widely embraced by the scientific community. The definition stated that "Species are groups of actually or potentially interbreeding natural populations that are reproductively isolated from other such groups". Certain mechanisms are in place to prevent species from interbreeding with others and these are referred to as reproductive isolating mechanisms‚ which are biological
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Self-revelation in Auctioning using Game Theory Application of Game Theory in Auction design has been known for quite some time now. Vickrey Auction or Second price sealed bid auction is one particularly elegant and powerful instance of the same. It is very much like a normal auction with a slight twist which does the trick. The bidder with the highest bid amount wins the auction but he pays the second-highest bid. This rule gives the bidders an incentive to bid their true value. This sounds too
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