The 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. a. The action potential changes the membrane potential from -70 mV (resting) to +30 mV and back again to the resting membrane potential. b. This results from a change in membrane permeability first to Na then to K due to the opening of what type of ion channels? Voltage gated channels 2. a. Where is the density of voltage-gated Na+ channels the greatest? Axon hillock b. What areas of the neuron generate signals that open these voltage-gated channels? Dendrites and the cell body c. Opening
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5-30 (Assertions) 1. The allowance for doubtful accounts is fairly presented in amount- Valuation and Allocation Assertion (Compare accounts receivable according to GAAP matching principle) 2. All accounts payable owed as of the balance sheet date are included in the financial statements- Completeness(Do the balances contain all transactions for the period) 3. All purchase returns recorded in the general ledger are valid- Existence/Occurrence(Do the recorded accounts represent valid liabilities
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values of potential difference V across the resistor are shown : I(amperes) | 0.5 | 1.0 | 2.0 | 3.0 | 4.0 | V(Volts) | 1.6 | 3.4 | 6.7 | 10.2 | 13.2 | Plot a graph between V and I and use this graph to find the value of current when potential difference across the resistor is 5V. Ans. Finding the current corresponding to 5 V potential difference (from graph) =1.5 A (approx.) Question 5 (a) What does the following circuit symbols represent? (i) (ii) (b) The potential difference
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The Potential Market for Apple iPad in the UK Table of contents 1.0 Introduction 3 2.0 Creative thinking 3 3.0 Recommendations for successfully marketing iPad in the UK 3 4.0 Conclusion 4 References 5 1.0 Introduction After iSlate and iGuide‚ iPad as another tablet-shaped computer was launched by Apple. The various applications of the iPad are very attractive for customers‚ but it also has some shortcomings including high price and the same user interface as iPhone. The
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Introduction Development is essential for every aspect of life. To improve a nation‚ the economy has to be developed. Among the socio-economic targets of all countries is the development of the rural areas. Rural development in general is usually used to denote the actions and initiatives taken to improve the standard of living in non-urban neighborhoods‚ countryside‚ and remote villages. This paper intends to discuss rural development‚ how its brought about and the effects both positive and negatives
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taking action themselves or even being informed of the information disclosure‚ many people may not even be aware that they were an Equifax customer nor what information they held. The information exposed in this hack is a treasure trove for potential identity thieves. It would
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MGI_Unleashing_Indonesia_potential_Full_reportitute September 2012 The archipelago economy: Unleashing Indonesia’s potential T he McKinsey Global Institute The McKinsey Global Institute (MGI)‚ the business and economics research arm of McKinsey & Company‚ was established in 1990 to develop a deeper understanding of the evolving global economy. Our goal is to provide leaders in the commercial‚ public‚ and social sectors with the facts and insights on which to base management and policy
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Rollercoasters have different types of forces involved. Two of the main forces experienced are called potential energy and kinetic energy. Potential energy is the energy an object has depending on the position of it. For example the higher an object is the higher the potential energy is and the lower an object is the less potential energy it will have. Kinetic energy is also a main type of force that is involved with rollercoasters. Kinetic energy is the energy an object will have as it is in motion
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The question‚ "Should people be judged by their potential rather than by their experience and achievements?" suggests that society undervalues potential. In other words‚ by judging based off achievements and experience‚ one will truly not be capable of getting a good judgement. In my opinion‚ people should be judged based on their potential. Throughout society and in life‚ the evidence to support my viewpoint is pervasive. A quite famous example to support my viewpoint is Albert Einstein‚ a ground
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