most commonly for transmitting information via a radio carrier wave. AM works by varying the strength (amplitude) of the carrier in proportion to the waveform being sent. 4. Angle Modulation - is a class of analog modulation. These techniques are based on altering the angle (or phase) of a sinusoidal carrier wave to transmit data‚ as opposed to varying the amplitude‚ such as in AM transmission. 5. Probability and Random Process – 6. Noise in Analog System - As the signal is copied and re-copied
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An Empirical Study on a Computer-Based Corpus Approach to English Vocabulary Teaching and Learning Song Yunxia Sun Zhuo Yang Min Foreign Languages Section of Agriculture Division of Jilin University‚ Changchun 130062 dasera@sima.com Abstract This paper investigates the effectiveness of a computer-based corpus approach to English vocabulary teaching and learning. The empirical study in this paper illustrates that the use of corpus does benefit English vocabulary teaching
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had shown that dopamine is released by pleasurable sensations but also by stress‚ pain or loss. These research results however had been skewed to only highlight the positive influence‚ according to Correa. The new article is a review of the paradigm based on the data from several investigations‚ including those conducted over the past two decades by the Castellón group in collaboration with the John Salamone of the University of Connecticut (USA)‚ on the role of dopamine in the motivated behaviour in
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Genetic Discrimination Based on Testing For "Harmful" Genes Eugenics is a social philosophy which advocates the improvement of human hereditary traits through various forms of intervention. The goals have been to create healthier‚ more intelligent people‚ lessen human suffering and save society ’s resources. Sir Frances Galton‚ introduced the term "eugenics"‚ and is regarded as the founder of the modern science eugenics (Bennett). Earlier means of achieving these goals focused on selective breeding
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expressed in a report by the Education Law and Policy(US). Published as a paper by education professors‚ the provenance is strong. It explains in depth the negative effects of high stakes testing. The report states that over 70% of the teachers have had to reduce teaching time in another subject to prepare for standardised testing. A clever anecdote personalises it by detailing the dismay of a teacher whose science experiment had to be stopped for the sake of test preparation. Therefore‚ the report
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(Sanzhar Naizabekov‚ 2012) Today we are bombarded with social media sites. As a society we are constantly connected to the world around us. The accurate definition is explained best by Boyd and Ellyson‚ 2007 “SNS or Social Networking System is a web-based service that allows individuals to construct a public or semi-public profile within a bounded system‚ articulate a list of other users with whom they share a connection‚ and view and traverse their list of connections and those made by others within
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Computer development is often referred to the different generations of computing devices. With each generation which includes the first to the fifth‚ significant changes have occurred resulting in lighter‚ cheaper‚ powerful‚ more efficient and convenient devices. This change in computing devices has caused businesses to rethink and revamp the ways they operate to meet consumer demands‚ reduce cost and compete efficiently. This paper will also examine computer- based information system and the impact
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Diploma Thesis University of Applied Sciences Furtwangen‚ Germany Faculty of Computer Science - Computer Networking Server-based Virus-protection On Unix/Linux by Rainer Link Advisor: Advisor: Finished: Public Release: Prof. Hannelore Frank Prof. Dr. Rainer Mueller May‚ 28 2003 August‚ 2003 Preface Abstract Evaluation and development of server-based anti-virus solutions‚ running on Linux/Unix‚ using the Internet Content Adaption Protocol (ICAP). The diploma thesis covers proof-of-concept
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ARTICLE The effect of computer-assisted instruction on Saudi University students’ learning of English Nasser Saleh Al-Mansour *‚ Ra’ed Abdulgader Al-Shorman Language Instructor-Language Unit Department‚ College of Languages and Translation‚ King Saud University‚ Saudi Arabia Received 17 March 2009; accepted 9 October 2009 Available online 30 October 2011 KEYWORDS CALL; CAI; EFL learners; English language instruction Abstract This study aims at investigating the effect of computer-assisted
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INTRODUCTION Background of the Study The use of computers in education opens a new area of knowledge and offers a tool that has the potential to change some of the existing educational methods. The teacher is the key to the effective use of this resource in the educational system. As computer use continues to increase in society‚ educators must also prepare for the use of computers within the classroom McCannon and Crews (2006). In the past‚ Computer lessons were normally taught through conventional
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