FM TRANSMISSION SYSTEM The basic communications system has: Transmitter: The sub-system that takes the information signal and processes it prior to transmission. The transmitter modulates the information onto a carrier signal‚ amplifies the signal and broadcasts it over the channel Channel: The medium which transports the modulated signal to the receiver. Air acts as the channel for broadcasts like radio. Receiver: The sub-system that takes in the transmitted signal from the channel
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What is mother-to-child transmission? Mother-to-child transmission (MTCT) is when an HIV-infected woman passes the virus to her baby. This can occur during pregnancy‚ labour and delivery‚ or breastfeeding. Without treatment‚ around 15-30% of babies born to HIV positive women will become infected with HIV during pregnancy and delivery. A further 5-20% will become infected through breastfeeding.1 Is MTCT a major problem? In 2008‚ around 430‚000 children under 15 became infected with HIV‚ mainly
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Neural & Synaptic Transmission The nervous system is made up of neurons and glila cells. Neurons are the basic communication links in the nervous system. Glila cell provide support for neurons and contribute to communication. Neurons normally transmit a neural impulse (an electric current) along an axon to a synapse with another neuron. The neural impulse is a brief change in neuron’s electrical charge that moves along an axon. It is an all-or-none event. Action potential triggers
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bubbles and no black precipitate. These conclusions identified the unknown organism as Serratia marcescens. Introduction The purpose of this paper was to inform the reader of the importance of microbiology in the world today. Microbiology studies the behavior of microorganisms and teaches students about the effect of bacteria‚ fungi‚ viruses‚ algae‚ and yeast on living things. Studying these microorganisms gives insight to the spread of different diseases and how
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Fundamentals of Distance Protection GE Multilin Outline • Transmission line introduction • What is distance protection? • Non-pilot and pilot schemes • Redundancy considerations • Security for dual-breaker terminals • Out-of-step relaying • Single-pole tripping • Series-compensated lines 2/ GE / December 7‚ 2014 Transmission Lines A Vital Part of the Power System: • Provide path to transfer power between generation and load • Operate at voltage levels from 69kV to 765kV • Deregulated markets
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Biology 2020 Microbiology Study Guide for first exam The history and scope of microbiology 1) What are the organisms/entities of study in the field of microbiology? 2) Who was the first human to publish extensive descriptions of microorganisms? 3) How did Louis Pasteur dismantle the theory of spontaneous generation in bacteria? 4) Who established microorganisms as the causative agent of infectious disease? How did he do this? What was the result of this body of work
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and van Leeuwenhoek. 1-6 Compare spontaneous generation and biogenesis. 1-7 Identify the contributions to microbiology made by Needham‚ Spallanzani‚ Virchow‚ and Pasteur. 1-8 Explain how Pasteur’s work influenced Lister and Koch. 1-9 Identify the importance of Koch’s postulates. 1-10 Identify the importance of Jenner’s work. 1-11 Identify the contributions to microbiology made by Ehrlich and Fleming. 1-12 Define bacteriology‚ mycology‚ parasitology‚ immunology‚ and virology.
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Lahela Correa 12/08/2009 Microbiology 140 Matthew Tuthill Unknown Lab Report Introduction There are many reasons for knowing the identity of microorganisms. The reasons range from knowing the causative agent of a disease in a patient‚ so as to know how it can be treated‚ to knowing the correct microorganism to be used for making certain foods or antibiotics. This study was done by applying all of the methods that I have been learned so far in the microbiology laboratory class for the identification
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TITLE Lab #4 Soil –vs- Water Microbiology INTRODUCTION There are 4 learning goals for this lab: 1. Collect samples and compile data from at least 2 sources (soil; water) of your choice. 2. Identify at least 2 Prokaryotes (bacteria) and 2 Eukaryotes (fungus) in your samples. 3. Research the importance of bacteria and fungus to Earth in a non-medical context. 4. Compile a high-quality‚ 3+ resource (excluding the lab worksheet)‚ MLA-cited in-text laboratory report using the scientific method
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Systems Biology Systems biology involves the study of an organism as one single system. Instead of analysing all the individual components that make up a cell‚ the cell is instead viewed as an interacting network of genes‚ proteins and biochemical reactions and these are studied as a whole. In 20th century‚ molecular biology was focused upon. A ‘reductionist’ approach was followed‚ in which the individual components‚ such as the cell nucleus or sugar metabolism‚ were studied in isolation. However
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