Saturday, November 16, 2019
Employee right case study bea Essay Example for Free
Employee right case study bea Essay The Pledge of Loyalty is part of the baptismal of fire when you enter an organization. When you become part of a group, you are obliged to follow the pledge or if you cannot, just leave. And this will play a crucial role in the discussion of this case study. On the first question of Allen Lopez retaining his job, while the First Amendment states that Lopezââ¬â¢ airing of grievance is protected under the Freedom of Expression, he is, however, in conflict with the crime of defamation and for not observing employment restrictions and loyalty oaths. So while he is allowed to use whatever medium to state his feelings and ideas, the law allows his company to fire him for he endangers the security of his companyââ¬â¢s workforce. On the second question on whether Lopez be forced to remove his website, the company may do one of two things. First, the company may petition for Temporary Restraining Order that will be issued by the court which will then order Lopez to freeze the website or to bring it down temporarily before the court decides on whether putting up the website did violate company laws as stated in the loyalty pledge. Second is to sue Lopez for damages and include in their motion that he bring down the website to curb further attacks on the companyââ¬â¢s image. Lastly, on how ExtremeNets executives will respect Lopezs rights and dignity, it is best for ExtremeNet to simply ask the court to bring the website down especially if it did not pose any significant negative effects in the dealings of the company. Allen Lopez has been a good employee and was only fighting for the welfare of the lower ranking employees. But still, it is in the discretion of ExtremeNet to either fire or retain Allen Lopez in the company. FindLaw. First Amendment ââ¬â Freedom of Expression. accessible at http://caselaw.lp.findlaw.com/data/constitution/amendment01/ eLaws. Employment Law Guide. accessible at http://www.dol.gov/compliance/guide/
Thursday, November 14, 2019
The Clinton-lewinsky Scandal :: William Jefferson Clinton Essays
Lately, the top story in the news day after day, months after months have been about William Jefferson Clinton, also known as Bill. Who could blame them, there is nothing better than a story out of the ordinary, especially one with presidential status. For the past months he has been the most talked about figure, being the essential topic for news, talk shows, late night comedy and even going as far as the big screen. Talk about 'Primary Colors' and 'Wag the Dog.' What has gotten to me the most however, were the constant flow of Republicans, along with a few Democrats, who just want to say how shocked and embarrassed they are along with the people of the United States.The president had not just become the most talked about figure, but also one history had ever seen, so far that is, breaking the record and becoming a topic of conversation and debate 'twenty-four seven.' The people, who I think were most affected by this crisis and feel very sad for, are the Republicans, since they ha d lost severe amount of sleep over the president's bedroom crisis. They had to perform their republican duties by shocking our brains with the president's affair with Monica Lewinsky. We had to ignore the rest of the world news and its issues while they plough through the valley of lies, abuse of power and something they called high crimes and misdemeanors. At first we listen and listen and listen but eventually got bored. Not a whole lot of people felt comfortable smelling someone dirty laundry which was aired for a very, very long time. I personally got tired of this never ending story a very long time ago, since I have a great deal of respect for Mr. Clinton. I love the guy and no I am not talking romantically. I love Mr. Clinton as a teacher and most importantly as a role model. There is a story behind how Mr. Clinton earned my respect, which had nothing to do with his cute looks, but rather his character.From what I've seen, he is a hardworking, dedicated, and caring individual. Most of all, he maintains his personality as an ordinary person just like you and me. His work as a president for the past years speaks for it self. From what I've observed, Mr. Clinton is always willing to act on the people's behalf and addressing the issues that concern them the most. The Clinton-lewinsky Scandal :: William Jefferson Clinton Essays Lately, the top story in the news day after day, months after months have been about William Jefferson Clinton, also known as Bill. Who could blame them, there is nothing better than a story out of the ordinary, especially one with presidential status. For the past months he has been the most talked about figure, being the essential topic for news, talk shows, late night comedy and even going as far as the big screen. Talk about 'Primary Colors' and 'Wag the Dog.' What has gotten to me the most however, were the constant flow of Republicans, along with a few Democrats, who just want to say how shocked and embarrassed they are along with the people of the United States.The president had not just become the most talked about figure, but also one history had ever seen, so far that is, breaking the record and becoming a topic of conversation and debate 'twenty-four seven.' The people, who I think were most affected by this crisis and feel very sad for, are the Republicans, since they ha d lost severe amount of sleep over the president's bedroom crisis. They had to perform their republican duties by shocking our brains with the president's affair with Monica Lewinsky. We had to ignore the rest of the world news and its issues while they plough through the valley of lies, abuse of power and something they called high crimes and misdemeanors. At first we listen and listen and listen but eventually got bored. Not a whole lot of people felt comfortable smelling someone dirty laundry which was aired for a very, very long time. I personally got tired of this never ending story a very long time ago, since I have a great deal of respect for Mr. Clinton. I love the guy and no I am not talking romantically. I love Mr. Clinton as a teacher and most importantly as a role model. There is a story behind how Mr. Clinton earned my respect, which had nothing to do with his cute looks, but rather his character.From what I've seen, he is a hardworking, dedicated, and caring individual. Most of all, he maintains his personality as an ordinary person just like you and me. His work as a president for the past years speaks for it self. From what I've observed, Mr. Clinton is always willing to act on the people's behalf and addressing the issues that concern them the most.
Monday, November 11, 2019
Boy in the Striped Pyjamas
What does the text highlight about the concept of belonging? The film tells a story seen through the innocent eyes of a 8 year old boy, Bruno, who is unsure of his place in the world. The most evident concept of belonging is his hitch in his transition from childhood to adulthood. Throughout the film, he faces the conflict between accepting the harsh ââ¬Å"Jew-killingâ⬠reality of the world or stay immersed in his fantastical world filled with adventure. Bruno also feels alienated from society having been moved from Berlin to the countryside, resulting in his isolation. On another level, he must further decide his place and to whether support his Nazi father's actions and stay true to his ââ¬Å"Fatherlandâ⬠or stay a companion with Schmal, the 8 year old Jew that Bruno befriends. 5. What connections about belonging can you make between this text and your prescribed text? In Dickinson's poems, there is a sense of disconnection with society that the poet experiences due to her isolation and seclusion from the world. Similarly, Bruno, in The Boy in the Striped Pyjamas, experiences the same sense of disconnection due to his unsurity over what is right or wrong. He feels out of place and confused throughout the film as a result of his youth as well as his lack of knowledge about the hostile situation in the world. Also, where Dickinson regards her relationship with nature as the most dominant one in her life as depicted in ââ¬Å"What mystery pervades a wellâ⬠, Bruno does the same in reference to his relationship with the Jew child, Schmal. Like nature, Schmal is an enigmatic character which Bruno does not seem to fully connect throughout the film, largely due to physical barriers such as the electric fence and mental factors like the judgemental character of Lt. Kotler and his father. Lastly, Dickinson realises her importance and place in the world due to her seclusion. Likewise, for the boy Bruno, it is left for him only to decide where he belongs in the world despite his age. Throughout the film, although Bruno is fed Nazi propoganda, we realise that it is ultimately up to him to decide his alliances as what he sees in the world is not quite what people describe. . What techniques does the composer use to convey his/her idas about belonging? (techniques, example, explain) Through the use of camera angles, Herman illustrates a sense of alienation between Bruno and his surroundings. He achieves this with a low shot of the new home, overshadowing and looming over a timid and doubting Bruno. Furthermore, the first scene that we see in the new home is Bruno sitting on the stairs, behind full-length banister rails, suggesting a sense of entrapment within the house. The use of costuming in the blue and white striped ââ¬Å"pyjamasâ⬠by Herman illustrates Bruno's innocence and his inability to comprehend what is right or wrong. He does not realise that the clothing is the uniform for captured Jews but as the film progresses, harsh reality soon overtakes his naive outlook of the world. The uniforms also represent how different the prisoners are to Bruno. Bruno's conflict between childhood and adulthood is further insinuated through the quote: ââ¬Å"My dad's a soldier, but not the sort that takes people's clothes away. The use of dramatic irony suggests again Bruno's innocence and how he is still very much a child in what is a hostile, adult world. The character of Schmul represents the power and solidarity of human relationships. What was intially a temporary friendship becomes permanent when Bruno becomes filled with regret after he betrays Schmal. A shake of the hands through the electric fence suggests that a connection between Bruno and Schmal exists regardless of any barriers. Boy in the Striped Pyjamas Brunoââ¬â¢s diary Year 1943, age 9 years old as I was born on the 15th april 1934. Day one of strange happenings: Today I came home from school and maria was in my bedroom going through MY things ââ¬â Even my secret things. She is just a servant but I tried to be polite when I asked what she thought she was doing. Maria never takes all my private things out, she puts things away like sheââ¬â¢s supposed too. I asked mother why maria is packing my things but she wonââ¬â¢t answer me properly. She just keeps saying we are all going away because of fatherââ¬â¢s job. She said Iââ¬â¢ll have to say goodbye to my friends, my best long life friends.I donââ¬â¢t want to say goodbye to my friends because of fatherââ¬â¢s job. I know heââ¬â¢s important but why canââ¬â¢t father go by himself and come back later? Itââ¬â¢s not fair. I still have lots of plans with my friends that I need to do. I wonder if grandma and grandfather are coming on this holiday too? We canà ¢â¬â¢t really leave them behindâ⬠¦though I donââ¬â¢t mind if Gretel stays ââ¬â shes hopeless. Gretel can look after the house so we can come back to it if this new one isnââ¬â¢t as good. I wonder if the other house has a big bannister like this one that I can slide down? I hope so because itââ¬â¢s my favourite thing to do.Day two of strange happenings: We are at the new house and itââ¬â¢s horrible! It only has three floors, not five like the other one and there are no other children around to play with. I donââ¬â¢t like this place but mother wonââ¬â¢t take me back home, she says this is where we live now but I donââ¬â¢t want to live here. Gretel doesnââ¬â¢t like it either, or maria, so it definitely is a horrible place to live. Iââ¬â¢ll just have to tell father what a mistake heââ¬â¢s made and then we can all go back home to berlin. Even the people here are scary and boring, like that man that came out of fathers room today.I donââ¬â¢t thin k I like himâ⬠¦heââ¬â¢s too serious. Maria says to steer clear of him anyway. Day three of the horrible place: I scared Gretel today when I showed her the weird children outside my window. She is three years older than me and quite scary, so scaring her isnââ¬â¢t an easy thing to do. I donââ¬â¢t know why she has come with us anyway, all she does is cause trouble. Thatââ¬â¢s what mother and father say anyway. At least her friends canââ¬â¢t come round anymore. She has horrible friends that call me six when Iââ¬â¢m actually nine! She still has her dolls though.I bet they spy on me when Iââ¬â¢m in her room, so I donââ¬â¢t go in there much. Gretel said father said we are going to stay here for the foreseeable future, whatever that means. Gretel thinks itââ¬â¢s about 3 weeks, so at least it isnââ¬â¢t a month I suppose. She doesnââ¬â¢t like this place either though so maybe we will move back sooner. Day four of the horrible place: The people outside my window are still there. Gretel thinks that we are in the countryside and that they must be farmers. I donââ¬â¢t think they are farmers though because there are no animals and the ground is all brown and dirty.It doesnââ¬â¢t look like a nice place anyway, there are soldiers shouting at people and for some reason everyone is wearing pyjamas. I wish Gretel knew who they were and would tell me. Sheââ¬â¢s the brightest girl in her class apparently. I found them though, so they are my people, not hers. I am a high and mighty king in my bedroom and they are my minions that Gretel canââ¬â¢t have. I shall have to ask father what they are doing there and why they donââ¬â¢t have baths. Iââ¬â¢ll know more than Gretel then, even though sheââ¬â¢s older. Day five:Father came to the house today. We had to leave earlier than father on the train. There were a lot of other people coming this way on the train tooâ⬠¦but they were all on one big train squashed together. I donâ⠬â¢t know why they didnââ¬â¢t just come on the same train as us because we had lots of empty seats they could have used. I was very brave today and asked father when we were going home because itââ¬â¢s horrible here. I thought father would get very angry because Iââ¬â¢m not supposed to go into his office or waste his time saying hello or asking silly questions.Father said we have to do things we donââ¬â¢t like though because other people know whatââ¬â¢s best for us. He said we have to accept the situation we find ourselves in and then everything will become easierâ⬠¦or something like that. I still donââ¬â¢t like it here though and it will never be home. I donââ¬â¢t know why father canââ¬â¢t see that heââ¬â¢s made a mistake. I even told him to apologise to the fury and then we can go back to berlin. Father is a very respectable man but I still think he is wrong. Why doesnââ¬â¢t he just listen to us instead of his job? Extract from chapter 12, pages 128 ââ¬â 129 â⬠¦we had to move to a different part of Cracow, where the soldiers built a big wall and my mother and father and my brother and I all had to live in one roomâ⬠¦Ã¢â¬ËThere was one small window in it but I didnââ¬â¢t like to look out of it because then I would see the wall and I hated the wall because our real home was on the other side of it. And this part of town was the bad part because it was always noisy and it was impossible to sleepâ⬠¦Ã¢â¬ËThen one day the soldiers all came with huge trucksâ⬠¦ And everyone was told to leave the houses. Lots of people didnââ¬â¢t want to and they hid wherever they could find a place but in the end I think they caught everyone.And the trucks took us to a train and the trainâ⬠¦ The train was horribleâ⬠¦ There were too many of us in the carriages for one thing. And there was no air to breathe. And it smelled awful. ââ¬â¢ Shmuelââ¬â¢s exposition provides necessary background information that a llows the reader to identify with the character. In this particular extract, the author conjures a lot of imagery to convey emotion and mood, which is implemented through structural and lingual techniques. Ellipses are used repeatedly throughout the extract, creating a pause, which causes the reader to consider and empathise with the characters ordeal.It also contributes to the rhythm of the paragraph, setting a slow and deliberate pace, evoking heightened emotions of fear and apprehension. The simplistic language, combined with alliteration delivers a childlike and innocent approach, which draws sympathy from the reader in relation to the childââ¬â¢s traumatic experience. For example, the ââ¬Ësoldiers built a big wallââ¬â¢ contrasts against shmuel and his family living in a small room, emphasising how small and vulnerable they are. The use of repetition such as the train is effective in this extract, as it creates a sense of urgency and distress, helping to set a desponden t atmosphere.This atmosphere is intensified with short sentences and a hyperbole toward the end of the paragraph (There was no air to breathe) for a dramatic impact. The boy in the striped pyjamas is a fable based on the holocaust. The protagonist of the story, Bruno, comes home from school one day to find his belongings packed and told to say goodbye to his friends due to his dads promotion. Mourning his old home Bruno sets out exploring areas he shouldnââ¬â¢t ââ¬â his naivety and inquisitive innocence, lead him to the outskirts of a concentration camp, where he befriends a boy just like himself, albeit religious boundaries.It is this friendship between two young boys that leads to a cruel twist of fate. The hamartia of bruno, in this case his innocence, leads to his downfall. It is somewhat ironic, that the innocence and accepting nature of a child is essentially a weakness that leads to a cruel fate, whilst those that deserve misfortune are without tragedy. It also conveys a moral, classifying this book as a fable. In relation, Romeo and Juliet by William Shakespeare share the same themes as the boy in the striped pyjamas.Innocent characters lose their lives unnecessarily because of events that are out of their control, caused by prejudice and discrimination. Another similar feature between the two novels is that Shakespeare uses dynasties/houses to create differences and segregation between parties. In correspondence, the author of the boy in the striped pyjamas, uses clothes to create differences and symbolise their status in society. For example, the striped pyjamas indicates inferiority, weakness and suffering of the jews, whilst the uniforms of the soldiers uphold authority, cruelty and dominance.As opposed to Shakespeare, what makes this book so despairing and emotive is the reality of it. It is not a romantic, fictional play based on lust and fate ââ¬â it is representative of real events where horrific tragedyââ¬â¢s took thousands of in nocent lives for reasons due to nothing but social status, discrimination and prejudice. It can be argued, that such events would not have occurred in reality; firstly, historical records show that more than 6000 soldiers were present in the aushwitz camp, making it unlikely that a child could escape their notice to sit at the edge of a camp and talk to an outsider.Secondly, most women and children were gassed upon their arrival, leaving the men to work. Another point raised, is that most credible 9 year olds have a lot more common sense in reality than is portrayed in this fable. Boyneââ¬â¢s story depends on the overwhelming naivety of his character, who is completely oblivious to the war despite his father working for Hitler. In conclusion, for a short fable aimed at children, I believe it to be a powerfully emotive tale that strikes key points. The innocence and reality of the events that took place in the book make it that much more touching, horrific and powerful.
Saturday, November 9, 2019
OFDM Simulation In Matlab Computer Science Essay
Abstract-This undertaking involves the simulation and survey of a simple Orthogonal Frequency Division Multiplexing ( OFDM ) system as an application of Digital Signal Processing. The country of focal point is the signal processing block of the system which uses Fast Fourier Transform ( FFT ) engines to accomplish perpendicularity of channels and thereby better the transmittal channel use. The system is simulated utilizing MATLAB and it involves transmittal of a digitized sound file through an linear white Gaussian noise ( AWGN ) channel utilizing OFDM technique and so retrieving the file at the receiving system. By correlating the original and the recovered file the effectivity of this technique is tested. The whole system realisation consists of multiple stairss ââ¬â beginning processing, channel, receiving system processing, analysis. Keywords-OFDM ; AWGN ; FFT ; IFFT ; BPSK ; Orthogonality ; CrosscorrelationI. IntroductionOrthogonal frequence division multiplexing ( OFDM ) is a frequence division multiplexing strategy in which the frequence separation between next bearer channels is minimized by the usage of the construct of perpendicularity. It is one of the multiple entree techniques widely used in radio and powerline communications. OFDM can supply big informations rates with sufficient hardiness against transmittal channel damages. The OFDM strategy allows several extraneous, narrow band sub-channels or subcarriers to overlap in frequence sphere and to be transmitted in parallel thereby spliting the available transmittal bandwidth expeditiously. The input informations is divided into several parallel informations watercourses or channels, one for each subcarrier. Each sub-carrier is modulated with a conventional digital transition strategy ( such as M-ary stage displacement identifying or Quadrature amplitude transition ) at a low symbol rate so as to keep the entire information rate similar to conventional single-carrier transition strategies utilizing the same bandwidth. The perpendicularity is achieved utilizing the fast Fourier transform ( FFT ) algorithm on the receiver side, and reverse FFT on the sender side as it allows for efficient modulator and detector execution. A general OFDM system diagram is shown in Fig. 1. At the sender, the modulated information signal ten [ n ] is foremost transformed to frequence sphere through IFFT. Then the signal is transmitted to the finish in the radio channel. At the receiving system, FFT is foremost applied to the standard signal, so the transmitted information symbol is estimated with some decrypting algorithm. The processing at each block with the assistance of MATLAB is described briefly as follows:A.Source ProcessingAt the beginning, the sound file is first read utilizing MATLAB as a vector music and converted into a binary information watercourse. Binary stage displacement keying ( BPSK ) is used as the transition strategy. In BPSK, each binary informations 1 is mapped to an information symbol of 1, while 0 is mapped to a?ââ¬â¢1. With BPSK transition, we can obtain the information vector. Then a 512-point IFFT is performed on that vector to bring forth the vector Texas for transmittal. Zero-padding is used if the information is non a multiple of 512.B. ChannelThe channel is simple AWGN, which means that there is no channel attenuation and the noise is Gaussian distributed with zero mean and discrepancy I?2. For a random noise, the standard signal is transmitted signal ( Texas ) +noise.C. Receiver ProcessingAt the receiving system, FFT is performed on the received informations obtain the noisy informations for decrypting. Simple bit-wise maximal likeliness ( ML ) decryption is adopted. Therefore, for each received noisy information spot, if the value is larger than 0, it is decoded as 1, otherwise, 0.D. System AnalysisThe received informations will the compared with the transmitted informations utilizing crosscorrelation to analyze the difference. The execution will be repeated for different values of noise discrepancies. In the subdivisions that follow we discuss in a bit-by-bit manner how we can implement such a system by sing all the indispensable resources. In subdivision II, the development of the full system is described along with relevant theoretical background. Section III shows how the system can be simulated utilizing MATLAB tools. Section IV contains the consequences of simulation and analysis of the system. Section V concludes the paper by supplying an abstract of the work done.II. system theoretical accountThe system is simulated utilizing MATLAB. The flow diagram of the system operations is shown in Fig. 2. Fig. 2 OFDM system theoretical account [ 8 ]A. TransmitterThe sender subdivision includes reading the sound file, change overing it into a binary watercourse, usage BPSK to modulate this watercourse and so execute N-point IFFT on the modulated informations to change over the information watercourse into N extraneous OFDM channels. In BPSK, each binary informations 1 is mapped to an information symbol of 1, while 0 is mapped to a?ââ¬â¢1. Thus we get a consecutive watercourse of BPSK modulated informations. The watercourse is divided into N analogue informations which forms the footing of an OFDM symbol.1. FFT-IFFT Algoritms and OrthogonalityAn OFDM system treats the input BPSK modulated symbols at the sender as though they are in the frequency-domain. These symbols are converted into parallel and are used as the inputs to an IFFT block that converts the signal into the clip sphere. The IFFT takes in N symbols at a clip where N is the figure of subcarriers/channels in the system. By definition of Inverse Discrete Fourier Transform ( DFT ) : x_n = frac { 1 } { N } sum_ { k=0 } ^ { N-1 } X_k e^ { frac { 2pi I } { N } K n } quad quad n = 0, dots, N-1. The signals eiÃâ ?i?à °ikn/N are extraneous over ( 0, N ) where Xk is the input symbol. DFT is the Fourier Transform of distinct clip signal taken at distinct blink of an eyes 2i?à °k/N. FFT/IFFT is a computationally efficient version of DFT/IDFT. For case, for N point DFT the computational complexness is N2 whereas for radix-2 FFT the 1 clip calculation is broken down into log2N degrees and each degree need N calculations hence the complexness is reduced to Nlog2N degrees. Therefore cut downing the calculation clip in instance of FFT. Therefore from above definition the base maps IFFT are N extraneous sinusoids, in other words IFFT is expressed as the leaden amount of extraneous sinusoids. These sinusoids have a different frequence extraneous to each other in frequence sphere. Each input symbol Acts of the Apostless like a complex/real weight for the corresponding sinusoidal term. Input symbols will be complex if M-ary PSK is used where M & gt ; 2. In such instance the value of the symbol determines both the amplitude and stage of the sinusoid for that subcarrier. However, since BPSK is used the weights are existent. The IFFT end product is the summing up of the N weighted sinusoids. Therefore, IFFT provides a simple manner to modulate informations onto N extraneous closely separated subcarriers. The block of N end product samples from the IFFT make up a individual OFDM symbol. hypertext transfer protocol: //www.wirelesscommunication.nl/reference/chaptr05/ofdm/images/fig4.gif ( a ) ( B ) Fig 3: OFDM spectrum ( a ) Single channel ( B ) 5 subcarriers [ 6 ] The signals e2i?à °kn/N are extraneous over ( 0, N ) as sum_ { n=0 } ^ { N-1 } left ( e^ { frac { 2pi I } { N } kn } ight ) left ( e^ { -frac { 2pi I } { N } k'n } ight ) =N~delta_ { kk ââ¬Ë } This perpendicularity due to FFT among next channels implies closely spaced bearers. They can be spaced in such a manner such that the nothing ( zero amplitude response ) of one channel will happen at the extremum of the next bearer as shown in Fig. 3. Therefore merely half of the available transmittal bandwidth will be utilised comparison to standard FDM, bettering the channel use by 50 per centum. The distinct time-domain signal that consequences from the IFFT is transmitted across the channel. Actual transmittals involve transition of IFFT bins into baseband parallel bearers before transmittal over the channel. But for simpleness of analysis we transmit the digital baseband signal itself as N subcarriers in a multipath free environment. Orthogonality of the subcarriers due to IFFT allows the frequence spacing between each next subcarrier to be minimal.B. ChannelThe channel is assumed to be simple AWGN, which means that there is no channel attenuation and the noise is Gaussian dist ributed with zero mean and discrepancy I? . The familial consecutive watercourse of IFFT bins is added to the random AWGN noise generated utilizing MATLAB to enforce the effects of channel.C. ReceiverAt the receiving system, an N point FFT block is used to treat the standard signal and convey it back into the frequence sphere. By definition of Discrete Fourier Transform ( DFT ) : Due to grounds mentioned antecedently FFT is the used in topographic point of DFT. The N point FFT end product will be the original symbols that were sent to the IFFT block at the sender. The end product of the FFT block is capable to maximum likelihood sensing to pull out the binary information from the noise infested symbols. After recovery of binary informations, it is converted to its parallel tantamount thereby retracing the original sound file.III. matlab simulationA. Transmitter1.Input audio file processingThe samples of the sound file that has to be transmitted is read into a vector Y utilizing the wavread bid. The wavread bid besides outputs two statements viz. the sampling frequence and spots per sample which are stored in variables degree Fahrenheits and spots severally. The scope and amplitude of the samples obtained are really little and hence they are increased by factor of 2 ( bits-1 ) and shifted by 2 ( bits-1 ) to acquire positive samples and thereby execute quantisa tion and change over it into 16-bit binary informations utilizing the dec2bin bid. 2. BPSK transition The binary informations stored in a array is BPSK modulated utilizing the simple algorithm of mapping each binary informations 1 to an information symbol of 1, and 0 to a?ââ¬â¢1 utilizing a for cringle. Figure 3 shows the configuration for BPSK ( 1bit/symbol ) . Figure 4: BPSK configuration3. IFFTThe BPSK modulated informations which is stored in a martix is converted into a row vector utilizing reshape bid in order to execute 512 point IFFT which is in consequence change overing the consecutive watercourse into 512 point parallel watercourse. IFFT is performed utilizing the bid ifft. The consequence of IFFT of the modulated information is an 512 point OFDM symbol. Since IFFT in MATLAB is calculated utilizing the definition of IDFT we need to multiply the IFFT vector by sqrt ( N ) to raise the mean power degree in order to keep sufficient signal to resound power ratio in the channel. After IFFT the parallel information is converted to consecutive and stored in vector txdataN.B. ChannelChannel is simulated by adding noise by bring forthing random white noise ( Gaussian distributed with average 0 and discrepancy as we specify ) utilizing the bid randn. The white noise generated utilizing randn is added it to txdataN. Thus, ch=txdataN+noise whe re noise= I?*randn ( 1, length ( txdataN ) ) .C. Receiver1.FFTThe standard OFDM signal vector ch is coverted into parallel and 512 point FFT is performed utilizing the bid fft to retrieve the noisy BPSK modulated informations. The scatterplot of the noise infested received informations is shown in Fig. 5 Fig. 5: Received Configuration with noise2.Maximum Likelihood ( ML ) DetectionIf the end product of FFT is observed to be complex, merely the existent portion is taken to observe the information symbols. Simple bit-wise maximal likeliness ( ML ) decryption is used to retrieve the original binary informations. Thus, for each received noisy information spot, if the value is larger than 0, it is decoded as 1, otherwise, 0.3. Reconstruction of audio file from recovered informationsThe cured digital information is converted into tantamount parallel samples utilizing bin2dec bid where each sample corresponds to 16 spots. The samples are so stored as a wav file recovered_music at a sampling frequence degree Fahrenheit utilizing the bid wavwrite.4. CorrelationThe cured sound file is played utilizing bid soundsc to observe the difference with the original file. The correlativity coefficient of the received sound vector and the original sound vector is calculated utilizing the bid corrcoef and stored in a matrix corr. As we change the discrepancy of the noise vector, which implies a alteration in the channel SNR, the covariance between the original and the recovered information lessenings and as a consequence we get a noisy sound at the end product.IV. System analysis and Simulation ResultsA. Frequency Analysis1.Frequency Response of input informations watercourse ( BPSK Modulated ) .2.OFDM channel frequence responseB. Input Sequence and matching OFDM symbolC. Correlation between input and end product informations1.Input sound samples. Fs=8kHz2.Recovered sound samples w/ correlativity coefficient=0.9042Discrepancy of AWGN=0.23.Recovered sound samples w/ correlativity coefficient=1Discrepancy of AWGN=0.013.Recovered sound samples w/ correlativity coefficient=0.1758Discrepancy of AWGN=1V. ConclusionOrthogonality in OFDM introduced due to the usage of DSP engines FFT and IFFT have proven to be really effectual in the improving channel spectral use by leting the convergence of next channels to about half of the channels bandwidth. Besides transition and demodulation complexness is reduced due to the usage FFT techniques. As a consequence it is executable to utilize ML decrypting to retrieve binary informations. In this undertaking, a simple MATLAB theoretical account of OFDM was simulated to analyze OFDM utilizing FFT. The power of FFT-IFFT to present orthogoniality in subcarriers was demonstrated. The consequence of AWGN channel utilizing different noise discrepancies was illustrated. The consequences showed that little noise discrepancies, that is, high signal to resound rations had negligible consequence of original informations. which was apparent from the computation of correlativity coefficient of original and cured informations.VI. MentionsE. Lawrey, ââ¬Å" The suitableness of OFDM as a transition technique for wireless telecommunications, with a CDMA comparing, â⬠B. Eng. thesis, James Cook University, Oct. 1997. Anibal Luis Intini, ââ¬Å" OFDM for Wireless Netwoks â⬠, University of California, Santa Barbara, CA. Rep.Dec.2000. G. Acosta, â⬠OFDM simulation utilizing MATLAB â⬠, Georgia Institute of Technology, GA. Rep.Aug. 2000. Alan C. Brrooks and Stephan J. Hoelzer, ââ¬Å" Design and Implementation of OFDM Signalling â⬠, Rep.May.2001. John G.Proakis, Digital Signal Processing, 3rd erectile dysfunction. Mathematical description of OFDM. [ Online ] .Available: hypertext transfer protocol: //www.wirelesscommunication.nl [ Revieved: 12/01/2010 ] ( Fig. 3 ) Matlab Tutorial. [ Online ] . Available: www.mathworks.com/academia/ EEL5525 Class Notes ( Fig. 1, 2 )
Thursday, November 7, 2019
Illness in the Barrio Professor Ramos Blog
Illness in the Barrio In Sandra Cisneros Never Marry a Mexican she means to show the perspective of a mentally ill woman, Clemencia. By telling the story from this womans point of view we are forced to give our attention to a person that is typically villainized, dismissed or otherwise given the wrong attention. Clemencia is not fucking crazy thats dismissive, shes also not evil, shes ill. We romanticize the mentally ill for whatever reason but we should dissect them instead, and that is what I strive to do, I want to understand her burden of illness in hope for a cure. Sandra Cisneros raises awareness on mental illness by telling Clemenciaââ¬â¢s story. Throughout the story she shows signs of grandiosity, narcissism, OCD, obsessive love disorder and borderline personality disorder. While I admit it is difficult to pinpoint her exact diagnosis I will point out a variety of varying and intersecting symptoms of disorders/illnesses that prove she is in fact sick. One could argue that Clemencia has borderline personality disorder or any variety of OCD since her symptoms are interchangeable. I would like to argue that she has obsessive love disorder but since OLD intersects with other forms of mental health disabilities its hard to say for sure. According to healthline.com symptoms of obsessive love disorder include: an overwhelming attraction to one person, obsessive thoughts about the person, possessive thoughts and actions and extreme jealousy over other interpersonal interactions (Cherney, Kristeen). She hates the white woman Megan and goes out of her way to put Gummy Bears in only her things. While Megan is giving birth Clemencia sleeps with her husband, shes so jealous that its almost vindictive, as if Drew is hers and Megan took him from her and now she needs to seek revenge, and she does by sleeping with her husband throughout their marriage. Clemencia is obsessive when she waits for their son to grow up so she can sleep with him and have power over him. She has an overwhelming attraction to Drew. She gives details to the color of his beard his skin and even finds her worth in his attraction to her. She is obsessed with Drew when she describes him nude as a pearl.. youd dissolve like snow(78). The death of Clemenciaââ¬â¢s father was traumatizing for her and (while there could be genetic factors) this is where her illness stemmed from. When describing her father in the hospital she uses the word Daddy, this is childlike which makes you feel for her. When she describes how she feels she says, like if theyd beaten me, or pulled my insides out through my nostrils(74). Often times when it comes to trauma people remember the smells more than anything, she even says what she remembered most was the smell, like death was already sitting on his chest (74). This was painful for Clemencia and she never dealt with this old pain and it attached itself to an illness, it burdened her and consumed her life like a cancer. She never forgave her mother and hated her for cheating on her daddy while he was dying. Her longing and unresolved grief for her father carried over into adulthood into her obsession with Drew. And her hatred for her mother carried over into hating Megan. When she sleeps with their son she says I cant see a trace of my lover in this boy (82). But she also says he has an ass like his fathers and that back like a valentine (82). He resembled his father in some way and so her obsession continued into their son. He also looks like Megan so she uses the boy to gain power over him, and in an indirect way, get back at her mother. Directed at the boy Clemencia said I created you from spit and red dust. And I can snuff you between my finger and thumb if I want to (75). This is an example of narcissism; an excessive need for admiration. Later she sleeps with the boy, their son, and she gets a sense of power. Again, this could be linked to narcissism and/or obsessive love disorder. When Clemencia first starts telling her story she is bias, like most people, but unlike most people she uses sophism to tell it. Sophism is a type of rhetoric used by individuals who use logic to twist the meanings of words in order to represent themselves in a better light or to suit their needs. This is a tactic used commonly by those who suffer with a mental illness/disorder such as obsessive love disorder and narcissistic personality disorder. Sandra Cisneros shows Clementias use of sophism and her inability to take responsibility in the first two pages. The writer shows us that Clementias reality is a little warped hinting at her mental illness. An example of this is when she says Ive never married and never will. Not because I couldnt, but because Im too romantic for marriageâ⬠¦ Itââ¬â¢s because I believe too much in marriage that I donââ¬â¢t. Better to not marry than live a lie (69). In reality she has commitment issues and a fear of Abandonment because her father abandoned her with his death. Then she frees herself from self-responsibility when she says ââ¬Å"my mother did this to meâ⬠(69). She proceeds to blame men, her mother, anyone but herself. I think awareness is helpful especially when it comes to stigmas, but its not enough. I think a lot of people are deficient in love but the mentally illespecially. Clemencia is aware that something is off with herself. She says its something that poisons the blood and tips me when the night swells and I feel as if the whole sky were leaning against my brain(83). To summarize Sandra Cisneros she doesnââ¬â¢t know what makes her so crazy in the middle of the night whether it be suicide or homicide she is so outside of herself that she would be an innocent bystander (83). She needs help and maybe if she knew what she was suffering from she could get it. But of course if she knew she would still have obstacles in front of her since there is so much more to be discovered about mental illness. Why is it as a society that we romanticize those suffering with a mental illness but not physical illness? More often than not we donââ¬â¢t understand them so we either dismiss them with the title evil or we romanticize them. Imagine calling someone with a lower respiratory infection evil or someone with the simple flu, tissue in hand, throwing up in sexy villainous black costume. A few cinematic examples of this are Christian Bale from American Psycho, Jared Leto as the Joker and Zac Efron as Ted Bundy in the film extremely Wicked, shockingly evil and vile. By romanticizing the sick we are feeding their illness and ignoring their pain. Mental illness is one of the worst sicknesses to suffer from because it is so widely misunderstood and mistreated. Whether she suffers from narcissistic personality disorder or obsessive love disorder or any variety or combination or disorders Clementia is deprived of living her life because of her layer of narcissism that blocks her from being her self. Her defense mechanism sabotages her ability to live a healthy life and she spends it seeking revenge and obsessing over people. She is imprisoned by her anger and pain. Cisneros, Sandra. Woman Hollering Creek. Random House, Inc., 1991 Cherney, Kristeen. ââ¬Å"Obsessive Love Dissorderâ⬠, Legg, Timothy J. January 10, 2018. Healthline.com
Tuesday, November 5, 2019
Settlement Patterns - Studying Societys Evolution
Settlement Patterns - Studying Societys Evolution In the scientific field of archaeology, the term settlement pattern refers to the evidence within a given region of the physical remnants of communities and networks. That evidence is used to interpret the way interdependent local groups of people interacted in the past. People have lived and interacted together for a very long time, and settlement patterns have been identified dating back to as long as humans have been on our planet. Settlement pattern as a concept was developed by social geographers in the late 19th century. The term referred then to how people live across a given landscape, in particular, what resources (water, arable land, transportation networks) they chose to live by and how they connected with one another: and the term is still a current study in geography of all flavors. Anthropological Underpinnings According to archaeologist Jeffrey Parsons, settlement patterns in anthropology began with the late 19th-century work of anthropologist Lewis Henry Morgan who was interested in how modern Pueblo societies were organized. Julian Steward published his first work on aboriginal social organization in the American southwest in the 1930s: but the idea was first extensively used by archaeologists Phillip Phillips, James A. Ford and James B. Griffin in the Mississippi Valley of the United States during World War II, and by Gordon Willey in the Viru Valley of Peru in the first decades after the war. What led to that was the implementation of regional surface survey, also called pedestrian survey, archaeological studies not focused on a single site, but rather on an extensive area. Being able to systematically identify all the sites within a given region means archaeologists can look at not just how people lived at any one time, but rather how that pattern changed through time. Conducting regional survey means you can investigate the evolution of communities, and thats what archaeological settlement pattern studies do today. Patterns Versus Systems Archaeologists refer to both settlement pattern studies and settlement system studies, sometimes interchangeably. If there is a difference, and you could argue about that, it might be that pattern studies look at the observable distribution of sites, while system studies look at how the people living at those sites interacted: modern archaeology cant really do one with the other, but if youd like to follow through, see the discussion in Drennan 2008 for more information about the historical differentiation. History of Settlement Pattern Studies Settlement pattern studies were first conducted using regional survey, in which archaeologists systematically walked over hectares and hectares of land, typically within a given river valley. But the analysis only truly became feasible after remote sensing was developed, beginning with photographic methods such as those used by Pierre Paris at Oc Eo but now, of course, using satellite imagery. Modern settlement pattern studies combine with satellite imagery, background research, surface survey, sampling, testing, artifact analysis, radiocarbon and other dating techniques. And, as you might imagine, after decades of research and advances in technology, one of the challenges of settlement patterns studies has a very modern ring to it: big data. Now that GPS units and artifact and environmental analysis are all intertwined, how to do you analyze the huge amounts of data that are collected? By the end of the 1950s, regional studies had been performed in Mexico, the United States, Europe, and Mesopotamia; but they have since expanded throughout the world. Sources Balkansky AK. 2008. Settlement pattern analysis. In: Pearsall DM, editor. Encyclopedia of Archaeology. New York: Academic Press. p 1978-1980. doi: 10.1016/B978-012373962-9.00293-4 Drennan RD. 2008. Settlement system analysis. In: Pearsall DM, editor. Encyclopedia of Archaeology. New York: Academic Press. p 1980-1982. 10.1016/B978-012373962-9.00280-6 Kowalewski SA. 2008. Regional Settlement Pattern Studies. Journal of Archaeological Research 16:225ââ¬â285. Parsons JR. 1972. Archaeological settlement patterns. Annual Review of Anthropology 1:127-150.
Saturday, November 2, 2019
Multiculturalism Issues in Curriculum Assignment
Multiculturalism Issues in Curriculum - Assignment Example It shall also make recommendations and/or predictions for the future of this issue. Finally, it shall establish support for recommendations and/or predictions with this research. Body The multicultural curriculum has its roots in the history of multicultural education which follows the history of the US civil rights movement (Fillion, n.d). The desegregation practices during the 1950s were established in order to provide equal education for all individuals, regardless of race or any other demographic considerations. The 1960s and 1970s, desegregation practices expanded to include application in seeking equity of all students in terms of their human rights (Banks, 2000). With the focus on human rights, multicultural concerns in education were considered, recognizing the importance of establishing awareness in a culturally diverse community. The changes in the teaching curriculum came under the collective heading of multiculturalism. These changes were also apparent in Britain and in A ustralia just as they were unfolding in the US (Lynch, 1983). The educational authorities recognized the fact that the curriculum must come from the social and the ethical concepts being seen in the multicultural setting. Various references to the inherent value of all human beings were also highlighted, and this attached value was also seen in the human rights movement in the 1960s and 1970s (Lynch, 1983). In these states, the focus was on acknowledging the need for the multicultural curriculum and for teachers to support and promote such a program. Research was then carried out and workshops with teachers implemented. Such actions were able to establish that even as many resources were needed in order to ââ¬Å"bring teachers to the level to the level of multicultural teaching acceptable to the proponents of multicultural curriculum, an emphasis must be placed on institutions of higher learning to require the incorporation of inclusionary multicultural methods and practice in the teacher certification processâ⬠(Fillion, n.d, p. 1). In effect, without any inclusionary methods in the institutions of higher learning, the multicultural curriculum could not find its place in the educational system. One of the issues in the multicultural curriculum revolves around the fact that the US is composed of different racial groups, but the educational system, including the curricula, the books, the resources, and other teaching materials are founded on White Anglo-Saxon Protestants, otherwise known as the mainstream Americans (Tiedt and Tiedt, 2000). This type of curriculum largely does not consider the experiences, the history, and the culture of other racial and ethnic groupings in the US (Banks, 1988). This type of curriculum has a negative impact on minorities as well as those belonging to the mainstream culture. This is because racism and ethnocentrism are protected and nourished under this mainstream-supported culture. A mainstream-focused curriculum has a neg ative impact on the mainstream students because it further supports their sense of superiority, misleading their understanding of their relationship with other members of society, especially the ethnic minorities (Banks, 1988). The lack of a multicultural curriculum also prevents the process of understanding concepts and information from the point of view of other cultures and races. Another issue with the
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