My Story About Quitting Smoking Essay - 1410 Words

My Story about Quitting Smoking I smoked for 13 years, since I lit up my first cigarette at the age of 17, during a stressful summer night, stopping at a corner store, after getting off technical school. My first cigarette was not to my liking, as this caused a very uncomfortable burning sensation in the throat, nose and mouth. I remember my inner voice saying smoking is not for me. Days passed, and final exams were approaching. I remember most of my friends smoked to reduce school related stress, or to have â€Å"more fun† going out to party. My family always gave me good advice on avoiding addictions, and bad habits; but when I saw all my friends smoking, I felt like a stranger within their circle. I don t remember exactly when or how, but I disobeyed my inner voice and ended up like my friends. Suddenly I was smoking just to reduce stress and to look â€Å"cool† in social events. I grew up in Mexico, and since my early childhood, I had played soccer with a passion. I remember always having excellent stamina. At any time, I could always go for a run, or play a sport without problems. I never imagined those cigarettes would have the potential to ruin those good physical skills that I once possessed. I ignored the smoking health risks by making the unintelligent decision of pouring toxic smoke into my lungs. When I permanently moved to Texas, I encounter a totally different environment. I was a new immigrant with no friends, limited English proficiency, and very low self-esteemShow MoreRelatedMy Story About Quitting Smoking Essay1487 Words   |  6 PagesMy Story about Quitting Smoking â€Å"Smoking will affect our health, regardless of how many cigarettes we smoke† I was a smoker for 13 years. I the first cigarette at the age of 17, during a stressful summer night, stopping at a corner shop, after getting off the difficult high school/technical school I attended, and graduated from (It was an institution of morning and evening attendance in order to obtain highschool diploma with a technical career). My first cigarette was not to my liking, as thisRead MoreQuitting Addictive Smoking : Smoking1713 Words   |  7 PagesDate Quitting Addictive Smoking Tobacco is causing one death in every six seconds and will reach to eight million deaths annually in the world, by 2030 (albawaba). That was the fact that my doctor stated to me when I visited him to get the thorough checkup because I was having trouble in breathing and trouble in sleeping. I got shocked by listening to this fact, but I could not relate that fact to my life until the doctor told me that these health issues of mine are the result of my addictiveRead MoreBanning Smoking On Ohio University s Campus833 Words   |  4 Pages Banning Smoking on Ohio University’s Campus Ohio University president, Roderick McDavis stated that â€Å"We will join more than 1,000 campuses nationwide who ban the use of tobacco on their campuses,†(Lee). Banning smoking will help make the campus area healthy by encouraging the smokers to quit smoking, Ohio University decided to ban smoking on any campus property. The University campus will begin the Smoke and Tobacco-Free Initiative policy in August 2015. The policy will impose by using a communityRead MoreEssay on Adidas Smoking Campaign1024 Words   |  5 PagesSajid Azad 01/31/13 English 102-942 Instructor: Valerie Fox Impossible is Nothing Adidas’s latest anti-smoking campaign features three cigarette butts layed out in a white background in the style of its logo, which includes their motto â€Å"impossible is nothing†. As one of the largest suppliers of athletic gear, Adidas looks to not only promote greater advantages in sports recreation, but also in good health. The communicator in the ad is the company Adidas, the primary audience would be smokersRead MoreSmoking Persuasive Essay757 Words   |  4 PagesSmoking is a plague to a plethora of individuals. Despite the numerous anti-smoking campaigns held all over the country, we have seen the number of smokers decline in a prolong rate. Even though, millions of ex-smokers surrendered to the temptation and continued with their atrocious habit—feeling depressed since theyre not mentally stable. Naturally, the query ascends: how plausible is it to quit with a horrible addiction like smoking? The simple answer to this question is â€Å"Yes† only if the personRead MoreShould Smoking Tobacco Be Banned?847 Words   |  4 Pagessmoker’s to quit smoking, Ohio University decides to ban the smoking on any campus property. Beside of that, the University campus will follow Smoke and Tobacco-Free Initiative policy in August 2015. Therefore, the policy will impose by using a community model†. That means each member at Ohio University would remain any smoker with the policy. Moreover, Ohio University hopes Ohio campus becomes healthier and without tobacco. But, through this policy lots of members whose smoking in Ohio UniversityRead MoreBanning Smoking Should Be Banned877 Words   |  4 Pages Banning Smoking Tobacco in Athens Campus of Ohio University According to Ohio University president McDavis from a 2015 Ohio University â€Å"We will join more than 1,000 campuses nationwide who ban the use of tobacco on their campuses,†(Lee). And according to execution of what the president said and make the campus area healthy by encourage the smoker’s to quit smoking, Ohio University decides to ban the smoking on any campus property. Beside of that, the University campus will follow Smoke and Tobacco-FreeRead MoreSmoking And Smoking - Stop Smoking920 Words   |  4 PagesStop Smoking I. Attention A. Take a deep breath. Allow the fresh air into your healthy lungs and then exhale. Now, stand near a smoker. Take a deep breath. Allowed your lungs to take in the same amount of air as you did the first time, then exhale. Did you cough? When you took a deep breath next to the smoker, you breathed in the smoke from the cigarette. That smoke has the same harsh chemicals that are entering in your lungs. â€Å"Acetaldehyde is in tobacco smoke. Acetaldehyde is a hazardous air pollutant†Read More Coming-of-Age Stories with Morals: T. Coraghessan Boyles Greasy Lake and John Updikes A P669 Words   |  3 PagesT. Coraghessan Boyles Greasy Lake and John Updikes A P have many similarities as well as differences. Both are coming-of-age stories that teach some sort of lesson to the protagonist at the end. â€Å"AP† is about a nineteen-year-old boy who stands up against his manager to impress a couple of girls who are dressed â€Å"immodestly†. â€Å"Greasy Lakeâ₠¬  is about many nineteen years olds playing a prank on a couple of bad characters who turn out to show the teens what they can really do in return. Read MoreThe Epidemic Of Cigarette Smoking2740 Words   |  11 PagesOctober 7, 2014 Smoking Epidemic The century-long epidemic of cigarette smoking has caused a public health concern of epic proportions. As health concerns about tobacco developed during the 1960s, the federal government moved in and initiated Tobacco Control laws. Smoking among adults in the mid-1960’s was prevalent with 42% of the population smoking compared to 18% in 2012. In 1964, the first report of the Surgeon General’s Advisory Committee on Smoking and Health identified smoking as a cause of

The Gypsy Swing Cats and the Beginning of Jazz Free Essays

Joshua Pauly Professor Hsu Artistic/Cultural Plunge Essay 11 April 2013 The Gypsy Swing Cats and the Beginning of Jazz On Wednesday April 10th I decided to go to the Kaffee Meister Coffeehouse, located at 9225 Carlton Hills Blvd Santee Ca. 92071, for the specific reason of enjoying some Jazz music played by the San Diego based Gypsy Swing Cats. I was quite impressed with how they performed by mixing an energetic and innovated blend of Swing, Jazz, and Blues. We will write a custom essay sample on The Gypsy Swing Cats and the Beginning of Jazz or any similar topic only for you Order Now From what I observed, their music merges Gypsy melodies and rhythms, with the influences of American Jazz reminiscent of Paris in the 1930’s: cool, charming, and classy. The music of the Gypsy Swing Cats is thoroughly modern infused with the wild, mysteriously free and exciting Gypsy flavors. The tantalizing melodies of the Gypsy Swing Cats bring the audience a unique and new experience. Their highly rhythmic sound will electrify your listening experience with a new exciting energy. Gypsy Jazz, also known as Gypsy Swing, is a musical expression often said to have been started by guitarist Jean â€Å"Django† Reinhardt. He was foremost amongst a group of Gypsy guitarists working in and around Paris in the 1930’s. The music combined the exciting sound of American Jazz that transformed the old into the new. The guitarists supercharged the music further by adding Swing to the fire and melancholia of the unique Gypsy sound. The tantalizing melodies of the Gypsy Swing Cats bring the audience a unique and new experience. My dad is a big fan of Jazz music and he played it a lot around me when I was growing up, but I never really paid attention to it or who the famous musicians of the genre were. Yeah, this Jazz music was and still is very soothing to my mind, but I just personally never had any drive to listen to it on my own. After Hearing The Gypsy Swing Cats’ band play this genre of music that I was not very familiar with, I decided to embark on a journey of discovering something new to add to my not-so-vastly knowledgeable brain, how Jazz was born. Jazz started when World War I had just ended and a social revolution was on its way. Customs and values of previous social norms were rejected. Life was to be lived to the fullest. This was also known as the era of the â€Å"lost generations,† and the â€Å"flapper† with her rolled stockings, short skirts, and straight up-and-down look. They disturbed their elders in the casino, night clubs, and speakeasies that replaced the ballrooms of prewar days. Dancing became more informal. At the close of the nineteenth century in the unpleasant dance halls and brothels of the South and Midwest, the word Jazz commonly meant sexual intercourse. Southern blacks, delivered from slavery a few decades before, started playing European music with Afro modifications. The first place of jazz has many origins: New Orleans, St. Louis, Memphis, and Kansas City are just a few. But New Orleans was and still remains an important jazz center. The ethnic rainbow of people who went to the bars and brothels were a big part of the development of jazz. This city had been under Spanish French rule because of the Louisiana Purchase. By 1900 New Orleans was a blend of Spanish, French, English, German, Italian, Slavic and countless blacks originally brought in the country as slaves. The first jazz bands contained a â€Å"rhythm section† consisting of a string bass, drums, and a guitar or banjo, and a â€Å"melodic section† with one or two cornets, a trombone, a clarinet, and sometimes even a violin. Years later, jazz was taken over by large orchestras; A â€Å"society jazz† contained fifteen or more musicians. Today, there is a renewed interest in the â€Å"big band† era, even though the music has very little to do with real jazz. Jazz is characterized by certain features. The first is a tendency to stress the weak beats of the bar (2nd and 4th) in contrast to traditional music which stressed the first and third beats. The second feature is syncopation through an extensive repetition of short and strongly rhythmic phrases or â€Å"riffs†. The third feature of jazz is swing (regular but subtle pulsation which animates 4/4 time). The swing must be present in every good jazz performance. Jazz as a musical style it has been with us for more than a century. Jazz originated in the United States, It has spread over the entire world, and its influence can be seen everywhere. It is a universal language and means of communication, understood by people in all nations and all walks of life. It has been a major influence on many styles and classes of music since its origin in the late 1800’s. It has also influenced dance, clothing styles, the recording industry, the film industry, radio and television, our language, and many other aspects of our lives. One major contributor to jazz was Louis Daniel Armstrong who was born in the Storyville District of New Orleans, Louisiana, on August 4, 1901. He always celebrated his birth as July 4, 1900 because that is what he was told and believed. His real date of birth was not known until after his death July 6, 1971. His father Willie, a laborer, left the family soon after he was born, his mother, a domestic servant and a part time prostitute called Mayanne, left Louis and his sister Beatrice, also called Mama Lucy, in the care of his grandma much of the time, however he always believed the love of his family helped him make it through those rough times. Louis dressed in rags and usually shopped in garbage cans. He sang with other boys on the streets for tips and began to develop his musical talents. At this time in his life, it was not a promising time for young Louis. To celebrate the New Year in 1913 Louis discharged a borrowed pistol into the air and was arrested. A very fortunate occurrence for Jazz and probably for him, he was then sent to the city’s Colored Waif’s Home for Boys, where he came under the very capable tutorship of Peter Davis, the music instructor at the home. Louis had some background in harmony singing, as a natural ability, and the experience of singing on the streets, but under Mr. Davis he began to study music. First vocals, then percussion, then he became the home bugler, and finally cornet. The music was very structured mostly marches and other ensemble music. When being released from the waif’s home at age fourteen, Louis worked selling papers, unloading boats, and selling coal from a horse and cart. He also listened to bands at clubs like the Come Clean Dance Hall and Mahogany Hall, in Storyville. Joe â€Å"King† Oliver with the Kid Ory Band was his favorite and he quickly became young Louis’s mentor. By 1917 Louis was playing in various groups at dive bars in New Orleans’ Storyville section. In 1919 he joined Fate Marable’s band in St. Louis, and stayed with him until 1921. Marable headed a band and he played in Zutty Singleton’s Trio, Papa Celestin’s Tuxedo Orchestra, The Silver Leaf Band, and When King Oliver left New Orleans in 1919 to go to Chicago, Louis took his place in Kid Ory’s band, at the suggestion of Oliver. In 1922 Louis received a telegram from Joe Oliver, asking him to join his Creole Jazz Band at Lincoln Gardens in Chicago. Louis learned much working with Oliver. The experience of playing second cornet helped to develop his ear and harmonies, and, the importance of playing straight lead, as Oliver did, were lessons that he would use for the remainder of his life. While playing in Oliver’s Creole Jazz Band, Louis met Lillian Hardin the piano player for the band, and they were married in February of 1924. By the end of 1924 she pressured Louis to leave the Oliver band. He moved to New York to play in Fletcher Henderson’s Orchestra for 13 months. While in New York he worked many recording sessions with numerous Blues singers including Bessie Smith on her 1925 classic recording of â€Å"St. Louis Blues†. In 1925 Armstrong moved back to Chicago and joined his wife’s band at the Dreamland. He recorded his first Hot Five records that same year. This was the first time Louis had made records under his own name. The records made by Louis Armstrong’s Hot Five and Hot Seven are considered to be absolute jazz classics and the peak of his creative powers. The band never played live, but continued recording until 1928. Louis Armstrong died in 1969 his manager was Joe Glaser. According to records the first person to play jazz music was a man born in 1878, the legendary Buddy Bolden. The old-time musicians say that Buddy Bolden was â€Å"the first musician to start the big noise in Jazz. † They say he’d shine his cornet â€Å"till it glistened like a woman’s legs†. Then he’d put his horn out the window and say to his band, â€Å"Let’s call the children home†. He would blow and his children would come running. It has also been said that, â€Å"his trumpet could be heard all over New Orleans, and even across the river in Algiers†. How to cite The Gypsy Swing Cats and the Beginning of Jazz, Papers

Studt guide Essay Example For Students

Studt guide Essay Unit #4- Study Guide, Chapter #3Answer the following questions, IN YOUR OWN WORDS. Of course, this is an open book assignment. 1. Everyone who lives in the United States lives in the same society and, also lives in the same culture. These concepts refer to different aspects of the United States. Using the United States as an example, explain the differences between the concepts of society and culture. Society sets boundaries for our lives. The United States has set out laws that we must abide by and follow. The United States is not different from other countries because of our social status, roles, groups, social institutions, and everyones surrounding areas has established beliefs or values. Our cultures are ver different because of our languages, mannerisms, values, norms and religion. It is difficult for a foreigner to come to the United States and learn new mannerisms, norms, and a new language. A foreigner now has to adapt to a custom he sees totally different from what might have been normal to him back at his native country. 2. Explain the differences between innovations, discoveries, inventions and diffusion. Give examples of each of these concepts in order to clarify the differences between them. There are all different but somewhat similar. One cant really work without the other in life. Innovations are ways to achieve a certain goal. An example is money. Drug dealers use illegitimate ways to achieve this goal. In the long run they will discover that they reap what they sow. Meaning that they might end up in jail and arrested. Discoveries are a new way of seeking reality as a second process for change. Inventions are combinations of existing elements and materials to form new ones. People invent new drugs for the sick or some people combine drugs just to get a fix or high. The diffusion is that later on in their lives it will affect them greatly or other people might learn for them. 3. Although it would seem that symbolic interactionists would be more interested in language than the proponents of structural functionalism and conflict theory, each of the perspectives has an interest in this important cultural component. Explain why language is important to symbolic interactio nists and elaborate on the interest that the other two perspectives would have in language. Language is a system of symbols that can be strung together for the purpose of communicating abstract thought. Language is important everywhere that you go. It shows up vividly with symbols. Interactionists, structural functionalism, and conflict theory all have to deal with language. Meaning face to face interaction, symbols, and the norms and values of society. Today in our society, we have to hear about the Middle East Crisis that is forever happening. Collen Powell went to talk with them, but was not able to resolve really anything. All the perspectives Interactionists, structural functionalism, and conflict theory all have to do in every day life because they are a part of our language. 4. What is the relationship between norms (i.e. folkways, mores, and laws) sanctions and values. For example is there a relationship between the importance of a value and related norms and sanctions? Focus on three of the basic values that Robin Williams presents in his analysis of the United States. Well, I believe that everyone has his or her own belief and values. Values relate to norms, sanctions mores and taboos. Some people are Catholic, some Christian, and some Atheist. Everyone has their own idea as to what belief they should have in terms of Religiosity. I believe that everyone should live life and enjoy it no matter what religion he or she or what anyone believes. Some of the values that were presented by sociologists Robin Willams are individualism, Religiosity, and Education. These values fit perfectly with different individuals because everyone has their own belief structure. .u9e04cfab012486229ac30c92b775176e , .u9e04cfab012486229ac30c92b775176e .postImageUrl , .u9e04cfab012486229ac30c92b775176e .centered-text-area { min-height: 80px; position: relative; } .u9e04cfab012486229ac30c92b775176e , .u9e04cfab012486229ac30c92b775176e:hover , .u9e04cfab012486229ac30c92b775176e:visited , .u9e04cfab012486229ac30c92b775176e:active { border:0!important; } .u9e04cfab012486229ac30c92b775176e .clearfix:after { content: ""; display: table; clear: both; } .u9e04cfab012486229ac30c92b775176e { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u9e04cfab012486229ac30c92b775176e:active , .u9e04cfab012486229ac30c92b775176e:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u9e04cfab012486229ac30c92b775176e .centered-text-area { width: 100%; position: relative ; } .u9e04cfab012486229ac30c92b775176e .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u9e04cfab012486229ac30c92b775176e .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u9e04cfab012486229ac30c92b775176e .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u9e04cfab012486229ac30c92b775176e:hover .ctaButton { background-color: #34495E!important; } .u9e04cfab012486229ac30c92b775176e .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u9e04cfab012486229ac30c92b775176e .u9e04cfab012486229ac30c92b775176e-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u9e04cfab012486229ac30c92b775176e:after { content: ""; display: block; clear: both; } READ: Multiple Choice Questions on Hiring and Managing Employees EssayWords/ Pages : 646 / 24

LTE Networks Essay Example

LTE Networks Essay LTE Networks Name: Institution: LTE Networks We will write a custom essay sample on LTE Networks specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on LTE Networks specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on LTE Networks specifically for you FOR ONLY $16.38 $13.9/page Hire Writer 4G is the new generation of wireless networks that has evolved from the third generation of mobile broadband communication. It is based on integrating terminals, networks and applications to fulfill increased user demand. 4G comprises LTE technology, HSPA+ and WiMax technologies. It is a general term coined by the ITU due to the advancements of the respective technologies relative to the original 3G networks. LTE systems have been designed to correct the numerous flaws related to 3G systems. The LTE systems have also been targeted to provide new services for instance; HD Video streaming and high quality voice communication. A term used to describe 4G technology is MAGIC. Mobile multimedia, Anytime anywhere, Global mobility support, Integrated wireless solutions and Customized personal service. LTE mobile networks are expected to provide high usability, global coverage, and easier broadband connectivity. This will make it easier for Telecom companies to expand coverage and consumption to areas previously not covered by 3G networks. High network capacity and low cost user-oriented services are also expected with the rolling out of LTE services. 4G communications are based on the Open Wireless Architecture (OWA). This will ensure that a single terminal can seamlessly connect to local high-speed wireless systems. For instance, when in homes, airports or shopping malls, the terminal can switch to present wireless LAN networks. When the user moves to a mobile zone i.e. a highway, the terminal can automatically switch to wireless mobile networks e.g. WCDMA or GPRS. Implementation of high performance 4G broadband necessitates use of multiple antennas, at the base station and subscriber module. Multiple antenna technology enables high capacities suited for multimedia applications e.g. streaming videos. These technologies also increase range and reliability of such networks considerably. OFDM is preferred to single carrier solutions in implementation of LTE networks. This is due to lower complexity of equalizers for high delay spread channels. A broadband signal is broken down into several narrow band carriers (tones). Each carrier is more robust to multi-path propagation. A cyclic prefix is added to maintain orthogonality within the tones. The prefix usually has a length greater than the expected delay spread. With proper coding and interleaving across frequencies, multi-path is transformed into an OFDM system advantage. This is by yielding frequency diversity. OFDM can be efficiently implemented by use of Fast Fourier Transform (FFTs) algorithms at both the transmitter and receiver. At the receiver, FFT algorithms reduce the channel response to a multiplicative constant, on a tone-by-tone basis. With multiple input and multiple output (MIMO), the channel response becomes a matrix. As each tone can be independently equalized, the complexity of space-time equalizers is entirely avoided. Multi-path is maintained as an advantage for a MIMO-OFDM system. This is because frequency selectivity caused by multi-path significantly improves the rank distribution of the channel matrices across frequency tones. Therefore, capacity is increased to BTS-on-a-chip or System-in-Package. Background Orthogonal Frequency Division Multiplexing (OFDM) has become a popular technique for transmission of signals over wireless channels. It has been implemented in various ways for instance; digital audio broadcasting (DAB), digital video broadcasting( DVB-T), the IEEE 802.11a, a local area network (LAN) standard and the IEEE 802.16a, a metropolitan network (MAN) standard. OFDM is also being implemented for dedicated short-range communications (DSRC). It will facilitate roadside to vehicle communications as a potential candidate for fourth generation (4G) wireless systems. The man goal in development of next-generation wireless communication systems is increasing bit-rate (link throughput) as well as network capacity. OFDM translates a frequency-selective channel into a parallel collection of frequency flat sub channels. When knowledge of a channel is available at the transmitter, the OFDM transmitter can adapt its signaling methodology to meet the channel. Since OFDM utilizes a large set of narrowly spaced sub-channels, these adaptive strategies can approach the ideal water pouring capacity of a frequency-selective channel. This is achieved by use of adaptive bit loading technologies. Here, different sized signal constellations are transmitted onto the sub-carriers. All MIMO-OFDM receivers must perform time synchronization; frequency offset estimation and correction and finally, parameter estimation. Generally, this is carried out by use of a preamble composed of several training sequences. Important improvements in throughput can be achieved when multiple antennas are implemented at both the transmitter and receiver side, especially in a rich scattering environment. This has been shown for wireless communication links in flat-fading as well as frequency-selective fading channels, multiple-transmit, multiple-receive antenna, i.e. MIMO. For portrayal purposes, the techniques can be split into two groups: space-time coding (STC) AND space division multiplexing (SDM).STC improves the performance of the communication system by coding over the different transmitter branches. However, SDM achieves a higher throughput by transmitting independent data streams on the different transmit branches and at the same carrier frequency. A potential application of the MIMO principle is the next generation Wireless-LAN technology. The current WLAN standards are IEEE 802.11a and IEEE 802.11g. These standards are based on orthogonal frequency division multiplexing (OFDM). A potential high data rate extension of these standards could be based on MIMO. This leads to the promising combination of the data rate enhancement of SDM and the high spectral efficiency and robustness against frequency-selective fading and narrowband interference of OFDM. Wireless LAN systems have various advantages. One is that they are mainly deployed in indoor environments. Such environments are typically characterized by a richly scattered multi-path Implementation Preamble W-LAN is a packet-switched system with a random access protocol. This means that a receiver possesses no prior knowledge about packet-arrival times. The random nature of the arrival times as well as the high data rates necessitate the synchronization to be completed shortly after the start of the reception of a packet. To enable ‘quick’ synchronization, the data packet is normally preceded with a known sequence known as ‘the preamble’. The preamble is carefully designed to provide enough information for efficient packet detection, frequency offset estimation, symbol timing, and channel estimation. Once there is accurate knowledge of the MIMO channel elements, the MIMO processing can separate the signal components originating from the different transmit antennas. To approximate the MIMO channel, it is necessary that the sub-channels from the TX antennas be uniquely different from the RX antennas. For that to be achieved, the preambles on the different TX antennas must be orthogonal as well as shift-orthogonal, at least for the channel length. Time Synchronization: 1.) Frame Detection/Coarse Timing: The purpose for frame detection (FD) is to recognize the preamble in order to detect arrival of a packet. This preamble detection algorithm can also be used as a coarse timing (CT) algorithm. This is because it inherently provides a rough estimate of the packet’s starting point. Different data-aided FD algorithms have been proposed for OFDM. For instance, a simple MIMO extension of Schmidl’s timing offset algorithm was proposed. All these algorithms are based n the correlation between the repeated symbols constituting the preamble. 2.) Symbol Timing: The symbol timing in an OFDM system chooses where to place the start of the FFT window within the OFDM symbol. An OFDM system exhibits a guard interval (GI), making it somewhat robust against timing offsets. Non-optimal symbol timing will result into more ISI and inter-carrier interference (ICI) in delay spread environments. This will result in a decrease in performance. C. Frequency Synchronization It is necessary for the frequency synchronization to correct the frequency offset. This is due to the difference in oscillator frequencies at the transmitter and the receiver. D. Channel Estimation When time synchronization is performed at the receiver and after the received signals are corrected for the frequency offset, the channel can be estimated using the known training symbols within the preamble. When the timing is performed correctly, it can be known which received samples correspond to the timing part. Synchronization Tracking using Pilot Sub-carriers The processing of the preamble deals with the initial synchronization of the MIMO OFDM receiver. However, it is very likely that the frequency offset will vary during the packet’s reception. This makes solely initial frequency synchronization insufficient. Furthermore, the system will experience phase noise (PN) invoked by the combination of RF oscillator and the phase-locked loop (PLL). MIMO Detection Algorithms: Once a packet is recognized and the synchronization and channel estimation are done, the FFT begins retrieving the sub-carrier signals. MIMO detection is applied to these signals on a sub-carrier basis. In terms of spatial multiplexing, the MLD-based detection algorithm PAC SOMLD executes well. MIMO-OFMD Design Constraints The key channel characteristics influencing wireless broadband systems are channel dispersion, Rician K-factor, the Doppler effect, cross-polarization discrimination, antenna correlation and the condition number. Doppler Effect: The fixed wireless channel Doppler spectrum is significantly different from the mobile channel Doppler spectrum. For fixed wireless channels, it was found that the Doppler is in the 0.1-2 Hz frequency range. It also has close to exponential or rounded spectrum shape. However, for mobile wireless channels, the Doppler can be at around 100 Hz. It also has the Jake’s spectrum. Cross-Polarization Discrimination: The cross polarization discrimination (XPD) is defined as the ratio of the co-polarized average received power P2 to the cross-polarized average received power; P. XPD measures the separation between two transmission channels that use variant polarization orientations. The larger the XPD, the less energy is coupled between the cross-polarized channels. The XPD values were found to decrease with increasing distance. Antenna Correlation: Antenna correlation plays a paramount role in single-input multi-output (SIMO), multi-input single-output (MISO), and MIMO systems. If the complex correlation coefficient is relatively high (e.g. higher than 0.7), diversity and multiplexing gains can be significantly reduced (or completely diminished in the case of correlation of 1). Generally, it was discovered that the complex correlation coefficients are low, in the 0.1-0.5 range for properly selected base station and receiver antenna configurations. Condition Number: The condition number can be described as a ratio of the maximum and minimum Eigen values of the MIMO channel matrix. Large capacity gains from spatial multiplexing operations in MIMO wireless systems are possible. However, this is only when the statistical distribution of condition numbers mostly contains low values. LOS conditions often create undesirable MIMO matrix conditions (i.e. high condition numbers) that can be mitigated by use of dual-polarized antennas. For low BTS antennas, most propagation conditions are non-LOS with a considerable amount of scattering, in which case the multiplexing gains of MIMO systems are incredibly significant. Current obstacles Despite the aforementioned improvements over traditional 3G networks, 4G (specifically, LTE) faces numerous obstacles in its implementation today. First, its throughput though advantageous, put it at a huge disadvantage. The fast speeds provided risk network congestion due to growing popularity of mobile broadband. This is accentuated by the stagnant growth in capture of spectrum capacity. Modern wireless technologies also have performance limited to signal quality. Secondly, pricing has been used as a deterrent by Telecoms companies due to network capacity constraints. A gigabyte goes for around $10. Roaming also poses a problem to LTE technologies. This is because different countries use different LTE network bands. Consequently, mobile devices will most likely fall back to 3G, which is universal. Mobile broadband is mostly consumed by smartphones and tablets. LTE chips require significantly more power than their 3G counterparts do to run. Therefore, battery life comes up as a problem in early smartphones. This is accentuated by the fact that LTE phones consume data faster than their 3G counterparts do. Disadvantages LTE has several disadvantages. One, it is very expensive to set up. For starters, it requires a lot more base stations than their LMR equivalents (Land Mobile Radio). Secondly, LTE equipment is quite expensive to purchase and deploy. It requires a very skilled to implement. Such high costs force the Telecoms operators to pass them on to their customers. To use LTE networks, it is necessary for consumers to purchase new cell phones to make use of new network infrastructure. The LTE standard currently supports only packet switching, as it is an all-IP network. GSM, UMTS and CDMA networks however, circuit-switch their voice calls. This will force carriers to re-engineer their voice call networks, further driving up LTE adoption costs. The Future Current adoption of 4G is not as widespread as 3G. However, its future is already being seen by recent developments. In January 2013, the ITU approved two new standards; LTE-Advanced and Wireless MAN-Advanced. LTE-Advanced will succeed current LTE networks while WiMax networks will be followed by Wireless MAN-Advanced. LTE-Advanced has been designed to meet the current constraints facing LTE especially carrier capacity. It will not necessarily increase consumer speeds past LTE’s 100Mbps. However, it will improve the overall experience. LTE-Advanced will also feature four or more antennas in a mobile device. This will potentially boost speeds experienced and their reliability. However, current applications may not necessitate an increase in network speeds.

State of nature and the fundamental purpose of political society

State of nature and the fundamental purpose of political society The society is made up of different phenomena. Scholars, and especially those studying philosophy, have been involved in explaining the different phenomena life contains. This paper will focus on the different views that have been established with regards to the state of nature and the fundamental purpose of politics in a society.Advertising We will write a custom essay sample on State of nature and the fundamental purpose of political society specifically for you for only $16.05 $11/page Learn More Why are things the way they are in the natural? What evidence is there to back the theory or theories that seem most fit to explain the state of nature? Which scholars have been most convincing with regards to explaining the state of nature? What is the role of politics in the society? What is the origin of politics in the society? What is the fundamental purpose of politics in the society? Can a society exist without politics? What are the major differences betw een a society with politics and one without politics? These are the questions that will form the basis through which the paper will communicate its core message. There have been a lot of scholars who have sought to set forth explanation with regards to the state of nature and the fundamental purpose of politics in the society. To clearly evaluate this, this paper will focus on two great philosophers – Thomas Hobbes and John Locke. Although there have been contribution by other scholars on the topic being tackled in the paper, the focus will be set on Hobbes and Locke. The main aim of the paper is to compare and contrast the principles set forth by Thomas Hobbes and John Locke with regards to the fundamental purpose of political society and the state of nature. What did each of them say about these two life aspects? Whose account is most plausible? Why? These questions form the guide that will direct the course of the paper. (Zaborowski, 2010) Thomas Hobbes is regarded to as a great philosopher. He lived in the 17th century and has been responsible for some of the most important principles set forth to explain the state of nature and politics. His works are compared to those of Aristotle Rousseau, Locke, Rawls, Kant and Plato. He is credited for the social contract theory and his laws on the association between nature and moral philosophies. The main point that Thomas Hobbes used in explain the state of nature is the comparison of life with regards to government. According to Hobbes, the perfect state of nature is characterized by the ability to privately make judgment which is not influenced by any exterior motive or by any agency. The power to make and enforce a decision under Hobbes’ explanation lies within the will of a person. Although he gives an explanation, he goes on to dispute the existence of a society under the perfect state of nature. He talks of how impossible it is for the existence of masterless men who are not subjected to any law . He also looks at coercive power in the explanation of the inexistence of a society under the perfect state of nature. (Beattie, 2010)Advertising Looking for essay on political sciences? Let's see if we can help you! Get your first paper with 15% OFF Learn More John Locke has also been credited with explaining the state of nature. With regards to Locke’s explanation on the topic, a society might actually experience the state of nature without experiencing excessive force and lawlessness. According to Locke, a perfect state of nature exists in situations where reason is the main driving force. Locke states that it is possible for people to exist together in harmony without one man seeking to harm another. According to Locke, a state of nature translates to a situation where all the men are free and responsible for their actions. This also includes the ability to dispose or order their different persons and possessions in the manner they deem well fit. All this is to be done within the boundaries that have been set by the default laws of nature. According to the condition presented by Locke, the main reason that dictates the boundaries set forth is reason. Unlike Hobbes’ explanation, Locke states that there is harmony in such an environment that is rooted from the respect of liberty, property, and life. The explanation that is given by Locke also covers the punishment for different transgressions. According to Locke, people in such a state of nature are cautious as there is an attachment or consequence to the actions they take. Unlike Hobbes’ explanation, the principles set forth by Locke have a theology attachment. The argument that has been set forth by Locke makes him as popular other philosophers who have discussed the state of nature. These include Robert Filner, Rawls, Plato, Aristotle Rousseau, and Kant. (Zaborowski, 2010) Thomas Hobbes has also looked at the purpose and politics in the analysis of the state o f nature. According to Hobbes, the society has to have a system through which order is maintained. Without a governing body, Hobbes talks of rampant destruction in the society as well as misuse of power. According to the principles Hobbes has used in explaining the state of nature, the establishment of a central organized unit through which order is maintained is the key element in government and politics. Politics erupts in a bid to control the governing system and in quest for power. Hobbes argues that effective governance is established through absolute authority. According to Hobbes, the more absolute authority a government has the more effective it is with regards to controlling its subjects. (Beattie, 2010) John Locke looks at politics and government from 2 main principles. He states that politics is founded on reason, social contract, and tolerance. These are important in dealing with the human nature and the selfish desires. Both Locke and Hobbes believe that the nature of m en allows them to be selfish beings and this is evident through the introduction of currency.Advertising We will write a custom essay sample on State of nature and the fundamental purpose of political society specifically for you for only $16.05 $11/page Learn More Establishing defense for the state alone is not enough. This is the main cause that has led to the development of civil societies. According to the principles set forth by Locke, it is clear to note that he advocated for the separation of powers in government so as to improve the efficiency of government. (Parry, 2003) In conclusion, both Locke and Hobbes have presented a wealth of information with regards to the analysis of the state of nature and the purpose of politics in the society. Hobbes views on the state of nature are more plausible whereas Locke’s views on the purpose of politics are more plausible. Hobbes principles on the state of nature are more acceptable compared to the view s of Locke. He has dealt with the situation as it presents itself and his arguments are widely acceptable and applicable. With regards to the establishment of government, Locke has presented the fundamental purpose for the establishment of government as well as analyzing the effectiveness of governance. References Beattie, A.R. (2010). Justice and morality: human suffering, natural law and international politics. Farnham, England: Ashgate Publishers. Parry, G. (2003). John Locke. London: Routledge. Zaborowski, H. (2010). Natural moral law in contemporary society. Washington D.C: Catholic University of America Press

Awesome Cover Letter Examples for College Students to Engage Employers

Awesome Cover Letter Examples for College Students to Engage Employers Awesome Cover Letter Examples for College Students to Engage Employers Writing a cover letter for resume as an undergraduate or freshly graduated student is both an exciting and difficult prospect. While many students focus on writing their resumes in order to impress their future employers, it’s important to note that both your resume and the cover letter for resume you send are what make your application. They both serve as a way of communicating who you are and how the company you are applying for can benefit from having you. It’s a two-way street after all. Many students will complain that their cover letter wasn’t good enough and that’s why they were turned down. While it’s not impossible, the more probable cause was that they mass e-mailed a resume with a cover letter and crossed their fingers. This is not how you apply for an internship or a job position. It shows that you don’t care about your employer and only think about yourself. Let’s take a look at how you can write a cover letter for resume in order to get hired. Do your research The best way to come up with perfect content for your application paper is by doing research. What does your dream company do? How long are they in business? Who is their CEO? Any and all information that you find about the company that you are chasing for an internship will help you a great deal. It will show that you care about them and do your work thoroughly. You can look up some cover letter examples in order to have a better understanding of what a company is looking for in its interns. The most prominent and developed companies don’t look for your academic background but for your particular set of skills. The most sought after skill in the corporate world is leadership. The ability to manage people and projects. Not how high your grade was in a particular course. Adapt to your company’s needs and you will be on your way of earning that internship you are looking for. Adapt your writing There is a cover letter for resume example everywhere you look, and knowing which style and tone of voice to acquire in order to impress your employer is part of the writing process. Some of the cover letter examples for students offer very detailed and step-by-step guides on how to craft your cover letter. Make sure that you study each one in order to recognize what style you need to use for that particular company. Are you sending your application via e-mail or in an envelope? Sometimes the envelope might be a great idea considering that it’s a dying fashion. It will help you look professional and elegant; making sure that your cover letter for resume actually gets read. Manage expectations The fact of the matter is that you are not the only person applying for a particular internship. It doesn’t mean that you should panic, only think critically about the chances you have. The most common mistake many students make is that they think the cover letter for resume is the first thing that your future employers will read when they receive your application. While in some cases that might be true, your employer is more interested in your resume. If it is well written and has everything that that particular employer wants in an intern, he or she will read your cover letter. Only then will the cover letter for resume come into play when applying for an internship. This means that your resume must be on par with what the company is looking for. It has to be well written and formatted, but most importantly it needs to fill the employer with confidence that you are the right person for them. It also means that you have to adapt your cover letter to your employer. While students think of internship more than they do of the company providing it, this has proven wrong in practice. You letter must be hand-crafted to cater to that particular company and only then does it have a chance in impressing your employer and landing you an internship. Format your paper While it’s important to adapt your writing to your employer, it’s even more important to format the paper properly. Try looking at some cover letter examples for students. You should start your cover letter for resume by greeting the person reading it (by name, mind you). The introduction of your paper should contain the reason for why you are writing the application and how you specifically can help the company. Employers are interested into why they should hire you and what benefit they have from you. Be sure to get straight to the point as soon as possible and your cover letter for resume will do the trick. The next paragraph should focus on your particular skills and again, how they can benefit the company. Make sure to keep the narrative going forward and don’t use the same sentences twice. It’s unprofessional and the employer will get the impression that you don’t have anything else to say. Use the final paragraph to close your cover letter for resume and state that you are looking forward to getting a phone call or an e-mail from the company. Always make sure that you give the reader a call-to-action, something that you expect them to do after they finish reading. As you’ve probably noticed by now, there is no way to write one cover letter and send it to multiple companies hoping that they will contact you; because they won’t. Adapt to your company of choice and craft the paper according to the research you’ve previously done. Following these tips and ideas will greatly increase your chances of earning an internship. It doesn’t mean that your cover letter for resume will be perfect, but it will be that much more professional and true to whom you are. Put every bit of hard work and effort into crafting your resume and cover letter; you will soon realize that hard work does pay off.

The Impact Of Global Warming On Developing Countries Essay

The Impact Of Global Warming On Developing Countries - Essay Example Global warming has been directly linked to increased emissions of carbon dioxide and other gases. The Earth is warmed by the radiant heat from the rays of the sun, which is generally equal to the amount of energy that is radiated back from the Earth in the form of infra red radiation. Thus the temperature of the Earth remains constant. However, the temperature of the Earth is directly dependent upon the composition of its atmosphere and when there is an excess of carbon dioxide and similar gases in the atmosphere, it blocks the infra red radiation from the surface of the Earth, trapping heat in the lower atmosphere and creating a "greenhouse effect" which increases global temperatures Rapid industrialization has resulted in increased energy use, with the resultant multiplication of carbon dioxide emissions. According to Roberts (2004), energy demand in countries like India, China and Brazil is developing so fast that it may double by 2020, while in the developed countries, the demand for power is fast outstripping supply, raising the specter of blackouts. In fact Roberts (2004) also points out that â€Å"China has seen dramatic increases in its energy consumption in recent years (pp. 143–145). In the words of one scientist; â€Å"China's rapid industrialization has led to upward revision of predictions... While previously we thought in terms of doubling the strength of the CO2 content of the pre industrial atmosphere, current thought is moving toward a tripling† (Broecker 1586).