Friday, January 24, 2020

Genetic Screening :: Science Genes Biology Papers

Genetic Screening What is genetic screening? Health care is becoming more and more of a concern today as the profession is constantly creating new procedures and what we hope are better ways to administer care. How would things be, though, if patients could be told beforehand what diseases they are likely to contract in the future? This is where genetic screening comes into play. Genetic screening is the ability to examine the genetic code for possible defects and the consequences thereof. What is a genetic disease? Professor Kare Berg of the University of Oslo describes genetic diseases as "†¦(including) diseases caused by a mutant gene at a single locus (Mendelian diseases), disorders caused by numerical or structural chromosomal anomalies, and diseases or malformations caused by the action of several genes or by interaction between genes and environmental factors" (1996). How can we test for these defects? Most often, a simple blood test can supply enough DNA to perform a thorough examination. Researchers are also developing new ways to test the genes of the unborn. For example, a new test in Korea extracts eggs from the mother and brings them to maturity. The eggs are then fertilized with the husband’s sperm and allowed to divide once or twice. A cell is then removed from each group and tested for known genetic diseases. University of California at San Francisco professor Yuet Wai Kan has developed a way to test an unborn baby’s blood without the use of amniocentesis. A blood sample is taken from the mother and immature red blood cells from the fetus are separated. Kan’s team can then run tests on these immature red blood cells. The procedure is said to be tedious but does not require expensive equipment or the costly time of an obstetrician, not to mention the pain that can accompany amniocentesis. Social, Economic, and Moral Issues Science is constantly seeking new uses for what we learn from genetics. Not everyone, however, is in favor of such findings. There are many things to consider as we put what we learn about genetics out for the world to see. How and when are these tests to be performed? Should they be performed? Who has the right to see the results of these tests? Who has the right to suggest such testing? Genetic tests and their results can have serious consequences on the lives of people tested and those who surround them. For instance, if employers know of an applicant who is susceptible to a deadly disease, they could most likely refrain from hiring the individual and save themselves trouble down the road. Genetic Screening :: Science Genes Biology Papers Genetic Screening What is genetic screening? Health care is becoming more and more of a concern today as the profession is constantly creating new procedures and what we hope are better ways to administer care. How would things be, though, if patients could be told beforehand what diseases they are likely to contract in the future? This is where genetic screening comes into play. Genetic screening is the ability to examine the genetic code for possible defects and the consequences thereof. What is a genetic disease? Professor Kare Berg of the University of Oslo describes genetic diseases as "†¦(including) diseases caused by a mutant gene at a single locus (Mendelian diseases), disorders caused by numerical or structural chromosomal anomalies, and diseases or malformations caused by the action of several genes or by interaction between genes and environmental factors" (1996). How can we test for these defects? Most often, a simple blood test can supply enough DNA to perform a thorough examination. Researchers are also developing new ways to test the genes of the unborn. For example, a new test in Korea extracts eggs from the mother and brings them to maturity. The eggs are then fertilized with the husband’s sperm and allowed to divide once or twice. A cell is then removed from each group and tested for known genetic diseases. University of California at San Francisco professor Yuet Wai Kan has developed a way to test an unborn baby’s blood without the use of amniocentesis. A blood sample is taken from the mother and immature red blood cells from the fetus are separated. Kan’s team can then run tests on these immature red blood cells. The procedure is said to be tedious but does not require expensive equipment or the costly time of an obstetrician, not to mention the pain that can accompany amniocentesis. Social, Economic, and Moral Issues Science is constantly seeking new uses for what we learn from genetics. Not everyone, however, is in favor of such findings. There are many things to consider as we put what we learn about genetics out for the world to see. How and when are these tests to be performed? Should they be performed? Who has the right to see the results of these tests? Who has the right to suggest such testing? Genetic tests and their results can have serious consequences on the lives of people tested and those who surround them. For instance, if employers know of an applicant who is susceptible to a deadly disease, they could most likely refrain from hiring the individual and save themselves trouble down the road.

Thursday, January 16, 2020

History Shows There Is No Such Thing as Absolute Power Essay

‘The undiminished ability to act in a particular way, or direct or influence the behaviour of others or the course of events’. Immediately one thinks of mighty Alexander, seizing every territory he set his eyes upon, or Joseph Stalin suppressing the entire population of the huge Soviet bloc with an iron fist. There are certainly individuals in history that would be regarded as absolutely powerful. Absolute power covers both being able to suppress and control opposition and support, and being able to achieve one’s aims, as both are interdependent. However, history as a study and analysis of the past through examining evidence, has shown that cultural relativism renders absolute power a much sought-after but unattainable possession; no person or organisation has been perfectly in control of their people since knowledge of other cultures has emerged, although some have attempted to claim to command it; even in the 21st Century, as seen by the North Korean rhetoric about the state’s absolute devotion to the Kim dynasty; for example, informing the population they should be willing to ‘become human bulwarks and human shields’ to defend their new leader Kim Jong-un. Since the Greeks first explored beyond their frontiers and came across cultures and religions which differed from their own, and since King Herodotus tried to pay the Greeks and Callatians to swap their respective burial practises (the Greeks burned their dead- the Callatians ate the corpse of their father) and was refused for any money, cultural relativism has existed as an obstacle to obtaining absolute power. Without cultural relativism, there are potential examples of absolute power being flouted. One that springs to mind is the ancient community who built Stonehenge. A supposedly ‘primitive’ people felt compelled to cut bluestones and transport them from south-west Wales either carrying them across hundreds of miles of mountainous and rugged terrain without technology, or by shipping them gradually over in handmade boats, before assembling them into the neat arrangement we can still see today. One prominent theory as to why this project was undertaken is that the stones are religious monuments designed to be worshipped or designed to intimidate worshippers into fearing their god. Either way, this points to a religious leader who had absolute power over his people, meaning he was able to persuade them to carry out this enormous logistical challenge. However, this essay will argue that cultural relativism has meant that apart from isolated communities such as that which built Stonehenge, no individual or organisation has possessed absolute power. On the other hand, some ancient historians would argue that the great Emperors of ancient times had absolute, autocratic power: the mighty King Darius and his vast Persian Empire, in which every provincial leader answered to him. Alexander the Great conquered almost the entire known world. Julius Caesar and his famous ‘veni, vidi, vici’ quotation, a demonstration of the ease with which he overpowered enemies. King Darius may have theoretically held absolute traditional authority over his Empire, being entitled by tradition to rule over every citizen, but it is clear that he didn’t hold absolute power. The wealthy Greek merchants in their colonies threw out Darius’s Persian provincial governors, and when Darius attempted to punish them by attacking their homeland, he was defeated. Even the fact that he had to resort to military force shows that he didn’t hold absolute power over the Greeks who were meant to answer to him as they were living in his Empire, but furthermore his military failed to preserve his power. This shows that he did not hold absolute power, and the Greek merchants rejected his leadership because they disliked it relative to the culture they were used to. Moreover, although Julius Caesar is and deserves to be recognised as an immensely powerful figure in world history, after emerging as the most successful of the Roman generals and doing the most to promote Roman interests in the further provinces, it is clear that he still didn’t hold absolute power. Absolute means universally valid and without dependence on anything else; Julius Caesar did not have the power to win over everyone, which would have prevented his murder. Evidently his power was dependent on the support of his Senate, which he failed to retain. There were over sixty conspirators involved in his murder, and he did not have the power to stop them- demonstrating that he didn’t hold absolute power over his people, as they found his leadership unacceptable relative to others. An anecdote which supports the claim that Alexander the Great did not hold absolute power is the story of his encounter with Diogenes. Alexander came across the philosopher sunbathing, and asked him if there was any favour which, as leader of the biggest Empire in the world, Alexander could fulfil for Diogenes. The philosopher simply requested that he stop obstructing the sun. After this experience, Alexander is said to have claimed that ‘if I were not Alexander, I should like to be Diogenes’, as he found the philosopher’s complete indifference to the offer of a favour from the world’s most powerful man to be such an incredible phenomenon. This shows that Alexander’s military and material wealth and power didn’t stop him from wishing he could instead be this anti-materialist philosopher. Diogenes had the power to make Alexander feel that he would prefer to be someone else, so that, even momentarily, he scored an emotional victory over him; if Alexander had had absolute power over his Empire, nobody should have been able to defeat him in any way. Throughout the Dark Ages, and the Middle Ages, it could be argued that the church had absolute power in parts of Europe, as the typical image of the ordinary European peasant is one of devout, God-fearing Christianity. However, an interesting and relevant point that Carr made in his book, What is History?, is that, with religious leaders and monks being the only literate people throughout this era, records of this time are written solely from their perspective, and therefore give the impression of a very devoutly religious period in Europe. However, this could be a falsified impression, as the enlightenment and other events such as the atheistic Communist revolution later on in Russia in 1917 demonstrate that the peasants and ordinary working classes of these countries were perhaps not as influenced and submitted to control by the church as first thought. Constantly through these times there were bitter disputes between the Pope and bishops, and the nobility and royalty that ruled over Europe, the most famous of which ended in Henry VIII abandoning the Vatican and establishing the Church of England. These power struggles display that neither the religious authorities nor the monarchies had anything that could be described as absolute power. Perhaps the monarchy were against the idea of Papal consultation, relative to the image they had of rulers before the Common Era who weren’t constrained by religious authorities- but obviously this would have been rejected by their religious subjects. This is another case of cultural relativism undermining absolute power. After the Enlightenment and Industrial Revolution, with the decline of religious authority and an autocratic hereditary hierarchy in Europe, the power balance alters. Although some areas are still governed by monarchy, for example Russia with the Tsars, other areas see the introduction of parliamentary systems and constitutional monarchy. One key theme of the enlightenment, debatably, was to eliminate even the idea of ‘absolute power’ and absolutist, arbitrary rule by promoting democracy and fair government. For example, in France, with the execution of Louis XVI, a Republic was established. However, the result was far from a fair society in which the government was held to account. Power in France moved between different dictatorial regimes until it was seized by Napoleon Bonaparte and the Consulate. Some would argue that Napoleon held absolute power; he conquered as he willed, and ruled over a large empire autocratically despite the fact that many in Europe now supported the idea of deliberative government. He even had the audacity to declare that he wouldn’t ‘give a fig for a million lives’ in the face of conquering new territories, something that surely only someone with absolute, unassailable power would be able to say without being removed from a position of responsibility. However, on the other hand, it is evident that he failed to retain absolute power. During his rule, there was unrest throughout his territory: from 1808, for example, the Spanish people began an ongoing and constant campaign of resistance against Napoleon’s men, which could not be suppressed despite his best efforts. Then, eventually, he was defeated, and then defeated again, and ended up alone in exile on the Island of St Helen. It is possible that if the people had not had knowledge from foreign sources of more benevolent and successful rulers, they would not have overthrown Napoleon; their ability to relate their experience to other cultures caused them to oppose Napoleon. This Napoleonic style, of attempting to seize absolute, autocratic power and ruling without the security of populism has been demonstrated in dozens of scenarios since Napoleon’s fall, with a myriad of totalitarian dictatorships in Europe and beyond which attempted to suppress and rule with absolute authority. However, each example can be knocked down. Hitler, it could be argued, took power on the merit of his charismatic personality and the appeal of his vision of a strong German people- whether by attracting enough popularity or simply making his thuggish SS a large and strong-willed enough organisation to secure his high position. From then on he suppressed opposition both at home and in German-occupied territory. The way in which he achieved this largely as an individual and then ruled so strongly whilst often ignoring suggestions from his advisors, could be described as holding absolute power over Germany and the territories conquered. Furthermore, some optimists might argue that the instigation of the Holocaust against the Jews and other ‘undesirables’ implies that he had absolute power over people, as ordinary human nature would produce repulsion at the very idea, and yet it was carried out. On the other hand, there is much evidence of resistance within Germany against Hitler’s regime- ranging from political opposition by Catholics and across general German society against the T4 programme (‘euthanasia’ mass murder of disabled people), to the ‘Red Orchestra’ Communists distributing propaganda leaflets, and of course the numerous assassination plots and attempts by Hitler’s own men. The ‘Red Orchestra’ example is very useful to my argument; they had not lived under a Communist system, but had read the teachings of Karl Marx and other Communist writers and therefore felt that relative to the Nazi system, Communism would be the best for Germany. While it is true that none of these were successful as such (except, to some extent, the opposition to T4), they certainly weren’t what Hitler desired and he had not the power to prevent them. Another major dictator of the 20th Century was Josef Stalin; although the Communist state was already in existence, he still needed his skill and slyness to seize power by using his role as party secretary to eliminate potential opponents, and especially by propelling himself ahead of Trotsky in terms of popularity through behaviour such as deceiving him into travelling to an eastern province so that he wasn’t present at Lenin’s funeral. He then purged Russia, the Communist Party and the army in order to ensure absolute control, and this made internal opposition to his regime virtually inexistent in terms of visible or united resistance. His Stalinist ideology also catapulted the USSR very quickly from a backward nation to a major world power, enabling them to withstand the German Operation Barbarossa (consequently, another failure of Hitler’s) and then even to push on until they formed a stand-off with the USA and Britain in Germany. With no opposition to him within his country (and so no possibility of assassination or being toppled), and these incredible achievements, some would infer that he must have had absolute power. Be that as it may, when we explore Stalin’s aims we can see that he was largely unsuccessful. His five-year-plans demanded unattainably high increases in output- such as 200% more iron produced and 335% more electricity. However, there is much evidence that factory owners and officials ‘cooked the books’ and exaggerated production when reporting back to the Party, in order to prevent being punished for failing to keep up. This would mean that Stalin could not achieve all that he wanted. Furthermore, one of his stated aims was to reverse Russia’s backwardness in order to avoid being ‘crushed’ by the developed capitalist powers. While he did generate huge industrialisation which propelled the USSR forwards so that in 1945 it emerged as one of two world superpowers, it was at the expense of over twenty million Russians dead in around two decades, due to famines caused by economic reforms or in the gulags and the purges; this huge cost is a death rate that resembles a backward nation far more than a developed one, and so some would argue that it shows that Stalin also failed in this aim. Finally, his struggle with the Western powers, for example through annexing eastern European countries into the Soviet bloc, although continued to some extent by his successors, was lost in the end. By 1990, the USSR had begun to unravel significantly as former members became independent countries and satellite states such as Ukraine and Estonia, and turned to democracy and the free market, after first breaking the propaganda limitations in order to learn of the other way of life, until Russia formally ended Communism in the year 1991. Stalin’s legacy failed to prevent cultural relativism from reaching into the population of the USSR. On the other hand, it could be argued that although he failed to prevent the future further expansion of the USSR his huge legacy in turning Russia around into the developed nation it is today shows his absolute power. Stalin and his ideology are still popular in modern Russia, as he is seen as a hero by many for seeing off the Nazi German invasion. This legacy, coupled with the extent to which he did manage to prevent notable opposition within his territory and beyond (for example, the assassination of Trotsky in Mexico), make him an individual who was close to achieving the coveted status of having absolute power in his ‘empire’, but still his failure to achieve what he wanted demonstrates that it would be untrue to describe him as such. And now approaching the present in terms of era, an example which was mentioned much earlier on in this essay, the Kim dynasty in North Korea; they make use of the personality cult, controls on education and media, and the secret police which were used to implement Stalin’s leadership in the USSR; however like him, they have been unable to carry out their aims. Kim Jong-Il aimed to make North Koreans the ‘most prosperous people on Earth’, but under his new economic reforms, millions died in a famine and all were affected by a famine which resulted in the army downgrading the height requirements for soldiers to sign up. They have also failed to prevent the black market from flourishing in North Korea and more importantly, they haven’t been able to stop Chinese smugglers from bringing in evidence of the prosperity experienced in South Korea and other countries. Therefore despite not being in particular danger of being overthrown by the people, due to their repressive regime, the Kim dynasty have not had the power to fulfil their plans. The same could be said of the solid Communist Party in China: although they are relatively secure in their position, with legal sovereignty guaranteed over the United Front as stated by the constitution, they have had to open up to imports and exports and allow free market economics, as their Communist planned economy failed. In modern times, nobody has succeeded in fully repressing their people, as defection and resistance has always been possible if not completely successful. Absolute power cannot be attributed to any modern day regimes, because knowledge of outside cultures always finds a way in, and the people learn of their relatively poor situation and rebel. One of the important phenomena to observe over the next few years is that of South Korean DVDs being smuggled into North Korea and allowing the people exposure to other cultures; this could potentially lead to an inability to further repress the people, to combine with the failure to achieve the Kim families’ aims. It is important to consider religion when looking at this question, as we have already conceded that religious authorities in some isolated communities could have held absolute power over their followers. One could argue that especially in the case of the Abrahamic religions, which are characterised by their belief in one single, omnipotent and omniscient God, absolute power is demonstrated by the infallibility of those who represent this one God- for example, the Pope, or the Iranian Ayatollah. In the most devout of communities and times, any religious disagreement could end in death- for example, the burning of Protestants or Catholics at the stake during the European battle between these two ideologies. This can be seen as religious authorities suppressing any opposition to the rule of God. Then, there are many examples of God’s representatives influencing people to act how he would will; for example, the Crusades saw hundreds of rich knights, under the influence of the Pope, leaving the luxury and relative safety of their castles and estates to recover Jerusalem, a city they had never visited. This can be seen as religion and its leaders having the absolute power to control the actions of others. However, for one thing the misuse of the aforementioned tradition of burning religious enemies, by which people would accuse those they disliked or coveted of belonging to the undesirable faith, shows that often people weren’t following the leadership of God but using this phenomenon to their selfish advantage. Another point against religious figures having absolute power is the decline in religious participation and the growth of atheism- this ongoing decline in terms of support of god as a leader demonstrates a decline in power. In times of strife, such as the suffering of the Russians under the Tsar, people lose their faith in religious hierarchies- and in this particular example the atheistic Soviet system was spawned. In addition to this decrease in willingness to submit to religious commands, there is a clear increase in actual opposition to religion- the growth of Humanism and the growing popularity of figures such as Richard Dawkins, who preaches anti-religion and anti-theism, show that God is being undermined as a leader and so can’t have absolute power over humanity as some religious leaders would intend. From exploring all these example of hugely powerful individuals and organisations, ranging from the autocratic emperors of Ancient civilisation, to the absolute monarchies of the middle ages, the Church and the modern totalitarian dictatorships and regimes such as Adolf Hitler’s Nazi Germany, or even the Communist Party in the People’s Republic of China, we can see that although their achievements are often incredible, and required huge amounts of power and ability, none of them have been able to perfectly fit both criteria- full suppression of opposition and the full ability to achieve what they wished. Inability to fulfil their political aims can often be put down to a failure to crush opposition, and the failure to crush opposition was caused by knowledge of other cultures which the people enjoyed the idea of more than they enjoyed their own; cultural relativism. When people get the idea into their heads that there are other systems which would benefit them and make their lives better, it is impossible to fully and permanently extinguish this and continue reigning on without reforming policy (failing to do what you want) or falling from power (failing to protect against the opposition). Therefore, the only time when history can show us absolute power is in isolated communities in which the people had no understanding or conception of an alternative way of life, such as the Ancient Britons who built Stonehenge. Bibliography A Little History of the World- E.H. Gombrich What Is History? – E.H. Carr Nazi Aggression- Planned or Improvised? (The Historian)- Hendrik K. Hogrefe Webography Who Built Stonehenge? Stuart Carter (First Science) http://www.livius.org/caa-can/caesar/caesar_t09.html http://www.e-classics.com/ALEXANDER.htm http://www.loc.gov/exhibits/archives/reps.html (Stalin) http://www.chinacyber.com/china_glance/politics.htm Polak

Wednesday, January 8, 2020

We re A Republic, By William P. Meyers - 1311 Words

The first article â€Å"We’re a Republic†, states that we the United States of America do indeed have a republic government. People tend to walk around believing that we are a democracy, but that’s only because they think of democracy in a different way. We see democracy as in we the people get the say in what the government does, when in fact true democracy is making decisions through voting or meetings. The Framers never intended for the United States be a democracy. They believed being a democracy was dangerous and not a good idea. The constitution clearly states that we are meant to be a republic, where representatives make the decisions for us. I agree, not only do we pledge to the republic but we also elect officials to speak and make decisions for us, which is basically what a republic consists of. â€Å"We’re a Democracy†, by William P. Meyers, states that we have become a democracy overtime but we are also still a hint of a republic as well . People who are so against democracy only see democracy as a direct democracy. But in reality, there’s also the representative democracy, which is quite similar to a republic. Over the years, with the help of all the amendment changes the U.S. has moved greatly towards a democracy. I actually agree with Meyers, both of these forms of government choose representatives to speak on their behalf, so whose to say we don’t actually have a democracy. In â€Å"We’re a Democracy† by Eugene Volokh, he shows that there is a fine line between being aShow MoreRelatedRp-Us Visiting Forces Agreement12890 Words   |  52 PagesINTRODUCTION The United States and the Republic of the Philippines maintain close ties based upon the U.S.- Philippines Mutual Defense Treaty, the period of U.S. colonization, common strategic and economic interests, and shared democratic values. The United States long maintained sizable naval and air forces bases in the country. 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Tuesday, December 31, 2019

Life Cycle of Fireflies and Lightning Bugs

Fireflies, also known as lightning bugs, are part of the beetle family (Lampyridae),  in the order Coleoptera. There are about 2,000 species of fireflies worldwide, with over 150 species in the U.S. and Canada.  Like all beetles, fireflies undergo complete metamorphosis with four stages in their life cycle: egg, larva, pupa, and adult. Egg (Embryonic Stage) The firefly life cycle begins with an egg. In midsummer, mated females will deposit about 100 spherical eggs, singly or in clusters, in the soil or near the soil surface. Fireflies prefer moist soils and will often choose to place their eggs under mulch or leaf litter, where the soil is less likely to dry out. Some fireflies will deposit eggs on vegetation rather than directly in the soil. Firefly eggs usually hatch in three to four weeks. The eggs of some lightning bugs are bioluminescent, and you may see them glowing dimly if youre lucky enough to find them in the soil. Larva (Larval Stage) As with many beetles, lightning bug larvae look somewhat wormlike. The dorsal segments are flattened and extend to the back and sides, like overlapping plates. Firefly larvae produce light and are sometimes called glowworms. Firefly larvae usually live in the soil. At night, they hunt slugs, snails, worms, and other insects. When it captures prey, the larva will inject its unfortunate victim with digestive enzymes to immobilize it and liquefy its remains. Larvae emerge from their eggs in late summer and live through the winter before pupating in the spring. In some species, the larval stage lasts well over a year, with the larvae living through two winters before pupating. As it grows, the larva will repeatedly molt to shed its exoskeleton, replacing it with a larger cuticle each time. Just before pupating, the firefly larva measures about three-quarters of an inch in length. Pupa (Pupal Stage) When the larva is ready to pupate—usually in late spring—it constructs a mud chamber in the soil and settles inside it. In some species, the larva attaches itself to a trees bark, hanging upside down by the hind end, and pupates while suspended (similar to a caterpillar). Regardless of which position the larva assumes for pupation, a remarkable transformation takes place during the pupal stage. In a process called histolysis, the larvas body is broken down, and special groups of transformative cells are activated. These cell groups, called histoblasts, trigger biochemical processes that transform the insect from a larva into its adult form. When the metamorphosis is complete, the adult firefly is ready to emerge, usually about 10 days to several weeks after pupation. Adult (Imaginal Stage) When the adult firefly finally emerges, it has only one real purpose: to reproduce. Fireflies flash to find a mate, using a species-specific pattern to locate compatible individuals of the opposite sex. Typically, the male flies low to the ground, flashing a signal with the light organ on its abdomen, and a female resting on vegetation returns the males communiquà ©. By repeating this exchange, the male homes in on her, after which, they mate. Not all fireflies feed as adults—some simply mate, produce offspring, and die. But when adults do feed, they are usually predacious and hunt other insects. Female fireflies sometimes use a bit of trickery to lure males of other species closer  and then eat them. Not much is known about firefly eating habits, however, and it is thought that some fireflies may feed on pollen or nectar. In some species, the female adult firefly is flightless. She may resemble a firefly larva but have large, compound eyes. Some fireflies dont produce light at all. For example, in the U.S., species found west of Kansas do not glow.

Sunday, December 22, 2019

Video Games Should Not Be Classified - 989 Words

Video games should not be classified as â€Å"bad† and if someone classifies them that way then hopefully they have some kind of different outlook after reading this. Where video games get this negative outlook is from the inglorious bastard genre of the â€Å"action† or first person shooter, when in reality, that’s one genre of 10’s if not 100’s of others that are established. Video games do in fact have beneficial attributes even though people think of them as addictive brainwashing mechanisms, and there are means to make video games a learning technique. Six experts on video games collaborated, and this is what they had to say. Daphne Bavelier and Shawn Green stated how video games have beneficial factors to them. They focused their attention on the action genre by saying that, Indeed, playing this type of game results in a wide range of behavioral benefits, including enhancements in low-level vision, visual attention, speed of processing and statistical inference, among others (Bavelier, Green, 2011). Action games deliver high intensity, faced paced decision making and processing; and with this exposure, players begin to harness their skills to judge situations quickly and act upon them. Each game differs from one another even in the same genre, and the ability for a gamer to not only hone in on fast processing and decision skills to support a pleasurable outcome, but it also affects their motor skills. Which is what brought Doug Han to say that, Depending on the type ofShow MoreRelatedDo Violent Video Games Cause People?926 Words   |  4 PagesDo violent video games cause people to act out violently? Some people argue that video games have nothing to do with real life actions of people. While opponents think that video games teach and train people to act out those actions seen on the video games. While video games may cause people to act out violently, there is no reason to ban them however; there should be regulations on the age and content of the video games. The first major video game system was put into production I 1972 by MagnavoxRead MoreThe Importance Of Violent Video Games932 Words   |  4 PagesWhile video games are fun for a lot of people, violent video games have proven to lead to more than just high scores and a source of entertainment. Violent video games need to be limited to our maturing youth. First, violent video games are one of the biggest and increasing outlets for providing our youth with deranged thoughts and aggressive impulsions. Second, the use of violent video games is very prevalent amongst soldiers in the U.S. Army being ordered to play these games to keep them in a warriorRead MoreJakob Neilsons 2nd Heuristic1281 Words   |  6 PagesJakob Neilson’s 2nd Heuristic The Jakob Nielson’s 2nd heuristic is the match between system and the real world. The system should speak the user’s language, with words, phrases, and concepts for users, rather than system-oriented terms. Follow real world conventions, making information appear in a natural and logical order (Nielson, 1995). The paper we will introduce three interactive items correlating between the system and the real world. Applying Neilson’s 2nd heuristic with the three interactiveRead MoreImpact of Media on the People of Pakistan1347 Words   |  6 Pageslate 20th Century, mass media could be classified into eight mass media industries: books, newspapers, magazines, recordings, radio, movies, television and the internet. With the explosion of digital communication technology in the late 20th and early 21st centuries, the question of what forms of media should be classified as mass media has become more prominent. For example, it is controversial whether to include cell pho nes, video games and computer games (such as MMORPGs) in the definition. InRead MoreShould We Blame Video Games For Violence1295 Words   |  6 Pagesâ€Å"Should We Blame Video Games for Violence† Video games; a pastime for many people across the world, a form of entertainment, and, of course, a way to destress yourself from the outside world. Video games have been around since October 18, 1958 and have been evolving rapidly through the years. â€Å" More than fifty years ago, before either arcades or home video games, visitors waited in line at Brookhaven National Laboratory to play â€Å"Tennis for Two,† an electronic tennis game that is unquestionably aRead MoreAttention Deficit Hyperactivity Disorder and Video Games1154 Words   |  5 PagesAttention-deficit hyperactivity disorder ADHD and Video games (Final review) This evaluation review is to determine the focus on what qualifies all referenced website or group of authors to write about ADHD. Studies provide validity to the data identifies as a reoccurrence when using devices. It sustains and controls the focus of a child with ADHD attention to be known as an addition. Studies express that video games and other devices such as TV can cause children with ADHD to have an additionRead MoreWhat Makes A Video Game Addictive?1537 Words   |  7 Pages Video Game Addiction Caymon Mosquera Leslie Henderson Intro to Mass Communication 1307.87 4/17/2016 â€Æ' What makes a video game addictive? As with any addiction video games are a multi-faceted issue. For starters, video games are made to be addictive. Not â€Å"addictive† in the clinical way, but designers are always looking for ways to make their games more interesting and increase the amount of time people will spend playing them. Consequently, games are designed to be difficult enough to be trulyRead MoreDo Violent Video Games Doom Young Players? Essay1352 Words   |  6 Pagesthe ages of 6 and 16 have gravitated towards video games. As technology has progressed, developers have greatly improved the graphics of video games. As a result, very real portrayals of human beings can be created. However, in many cases, game makers take advantage of this and incorporate realistic violence in the games. Although games such as these are rated for mature players, children have been able to obtain and play these violent types of video games. Due to this trend, many psychologists andRead MoreThe Final Version Of The Track 1469 Words   |  6 Pagesaggressive and fast paced score, â€Å"something with the adrenaline of soaring through the skies†. But again he felt that too fell flat due to the feeling of emotional manipulation. Finally he just decided to compose an abstract idea of what he felt it should be and came up with the final version of the track (Journey). The final version of the track indeed does heighten the player’s emotions of freedom, excitement, and elevation. â€Å"Sound design and music are both enormously effective at eliciting affectiveRead MoreComputer Games : Video Games1229 Words   |  5 PagesComputer Games Personal computer games also known as the computer games demonstrate the video games which are played on a personal computer rather than an arcade machine or a video game console. The most defining features of these games include a higher degree of user control of the gaming software and hardware, absence of central controlling ability. Another most defining characteristic of the games is the increased capacity for input to the pc, processing and consequently the output. The people

Saturday, December 14, 2019

Theory of Data Communication Free Essays

Btec National Unit 8 – Communications Technologies |Hand-in date |Return date | |Assessment No: 8. | | | |Assessment Title: The theory of data communications | | | |This assessment has been internally verified by: Edexcel | | | |Hand out date: 21/10/10 Hand in date: 21/11/10 | | | |On going assignment used as a delivery tool | | | This assessment provides the opportunity to meet the grading criteria for the unit as indicated in the grid below. Student Name: Learner Authentication Statement If you copy from someone else or allow another candidate to copy from you, or if you cheat in any way you may be disqualified from at least the assignment concerned. We will write a custom essay sample on Theory of Data Communication or any similar topic only for you Order Now Any help or information you have received from people other than your subject teacher must be clearly identified in the work itselfAny books, information leaflets or other material (eg videos, software packages or information from the internet) which you have used to help you complete this work must be clearly acknowledged in the work itself. To present material copied from books or other sources without acknowledgement will be regarded as deliberate deception. Declaration by learner I have read and understood the above statements. I have produced the work without help except for help from my subject lecturer and the help which I have declared in the work itself. I have acknowledged all source material in the work itself.Write suitable materials for Chapter 1, section 1 which explains the purpose and workings of basic communication devices and the principles of signal theory. Task 1b M1 Explain techniques that can be used to reduce errors in transmissions Add a section 2 to your gui de (entitled ‘Error detection and correction’) which explains the techniques that can be used to reduce data transmission errors. Task 2 and grading criteria covered TASK 2 P3Describe communication protocols used and explain why they are important D1Critically compare the OSI seven layer model and the TCP/IP model Write section 3 (entitled ‘Communication protocols’), which should include a description of the communication protocols in common use and explain why protocols are important.Write a detailed comparison of the OSI seven layer model and the TCP/IP model, commenting on the approach taken and the suitability of each of the models. Guidance notes THIS ASSIGNMENT IS VERY MUCH ABOUT EXPLAINING THE BASIC THEORY THAT LIES BEHIND COMMUNICATION TECHNOLOGY. THERE ARE LOTS OF SOURCES FOR THIS INFORMATION IN BOOKS AND ON THE INTERNET, BUT REMEMBER WHAT YOU WRITE MUST BE IN YOUR OWN WORDS; YOU CANNOT COPY MATERIAL DIRECTLY FROM THESE SOURCES.For Task 1a you will need to list the various types of communication devices and explain how they are used. Note that the unit content makes a distinction between ‘general’ communication devices, network components (servers, workstations, NICs, etc. and interconnection devices (hubs, routers, switches, etc. ). For this task (covering P1) you should be describing general communication devices, not specific components which are covered in Assignment 3. In practice, it might be quite difficult to make this distinction, but don’t spend too much time describing network components in this assignment. In terms of communication devices, the unit content mentions wired devices, such as DTE devices (e. g. , a computer) and DCE devices (such as a modem), and wireless devices (such as mobile phones, PDAs and laptops, etc. ). You need to explain in outline the way these devices can be connected to a network.To cover P2 an explanation of digital signal theory is required. Refer again to the unit content to see the issues you must cover. For Task 1b you need to write an explanation of the techniques used for error reduction. The only technique mentioned in the unit content is checksums, but other simple techniques such as parity might also be covered. For Task 2 an explanation of what protocols are, why they are important and examples of ones in common use are required. To achieve D1 you will need to write a detailed comparison of the OSI and the TCP/IP models. This will need to point out the similarities and differences between the two models. LEARNER INSTRUCTIO The theory of data communications | |By Olateju Famuyiwa | | This book gives details of the basics of communication devices and methods of communication used within networking and the | |internet environment. | Table of Content Data Circuit-terminating Equipment (DCE)4 Wireless Devices4 The principles of signal theory5 Data5 Denary to Binary5 Data Packets5 Asynchronous and Synchronous Transmissions6 Bandwidth (Analogue)6 Bandwidth (Digital)6 Section2 Error detection and correction6 Parity (Odd and Even)6 Cyclic Redundancy Check (CRC)7 Chapter 27Section3 Communications Protocols7 Hyper Text Transfer Protocol (HTTP)7 Transmission Control Protocol/Internet Protocol (TCP/IP)7 File Transfer Protocol (FTP)8 Open Systems Interconnection (OSI)8 OSI Seven Layer Model9 TCP/IP Four Layer Model10 Critical Comparison10 The Session Layer (OSI)10 The Presentation Layer (OSI)10 The Application La yer (OSI)10 How OSI builds up applications10 How TCP/IP builds up applications11 Transport Layer (OSI)11 Transport Layer (TCP/IP)11 Comparing Transport for both Models11 Network Vs. Internet. 11 Data Link/Physical Vs. Subnet11 Assignment 8. : The theory of data communications I recently just got a job as a junior technician at NetCo; NetCo is a company that manufactures networking hardware such as switches, routers, etc. .. They’re planning to start up a networking academy (rather like the Cisco Network Academy) and create related qualifications. The project manager has approached me so as to prepare some learning materials for ‘Chapter 1’ of the online course. Chapter 1 is entitled ‘The Theory of Data Communications’. The chapter will be subdivided into a number of sections. And I’ve decided that the materials shall be produced in the form of a Word document. Chapter 1 Section1Identify and explain types of communication devices There are different types of communication devices; Communication devices are electronic hardware that interacts (communicates) with each other to perform specific tasks. The technologies that are used to communicate are data terminal equipment (DTE) and data circuit-terminating equipment (DCE). Another type of communication devices would be Wireless devices. I plan to explain all the above in detail. Data Terminal Equipment (DTE) DTE is a form of expression for a device that is at the end of the line. Examples of this could be a modem, network interface card (NIC), mobile phone or Bluetooth.DTEs differ depending on its purpose, for example, with Bluetooth, size and range are an important feature and with mobile phones, the quality and bandwidth are more important. Network cards and modems exist in a range of formats that are designed for a wide range of speeds i. e. bandwidth depending on the type of network being used. Data Circuit-terminating Equipment (DCE) DCE and DTE work together by the DTE connecting to the Internet or network service offered by the DCE. This is network equipment which controls the communication. Some examples of these are: †¢ A Bluetooth dongle in a PC, which is used to synchronise a mobile phone or PDA. †¢ A switch in a communications/server room at school, college or work, which will connect all the computers to the Local Area Network (LAN) and the InternetWireless Devices Wireless devices are devices which transmit their data over the air. Types of mobile communication devices would be third (3G) and (2G) group of mobile phones, wireless laptops and wireless PDAs. Wireless networks use the 802. 11x standard. This is the IEEE standard (Institute of Electrical and Electronics Engineers) which defines the speed of the network and its range. The mobile phone network is a large connection of stations throughout the nation and internationally which allows subscribers to the service to communicate through low bandwidth voice system. The principles of signal theory Data The smallest portion of data is a bit.The word bit comes from Binary Digit which is either a 0 or 1. 0 or 1 means Off or On. This controls hardware within communication devices to perform operations. When bits are grouped together the can become more useful. For example, 8 bits of data will form 1 Byte. Denary to Binary Denary means 10 numbers. In our standard number system we have 10 numbers. These are: 0,1,2,3,4,5,6,7,8,9. Now to convert Denary to Binary, you must know the base 2 rules. These are similar to units, tens, hundreds that primary school children are taught. So for example say†¦ I want to convert the denary number 37 into binary. I would do this by taking the number and dividing it by 2 each time: Divide by 2 |37 |Remainder | |Divide by 2 |18 |1 | |Divide by 2 |9 |0 | |Divide by 2 |4 |1 | |Divide by 2 |2 |0 | |Divide by 2 |1 |0 | | |0 |1 | Now what I do is take the remainders from the bottom of the table going up: 100101. With this I will now do 2 to the power of X, X being 0,1,2,3,4,5,6 etc. 25 24 23 22 21 20 – This is the 2x 1 0 0 1 0 1 – This is the binary for 37 32 16 8 4 2 1 – This is the base 2 ruleNow to check that the binary is correct I will take the base 2 numbers where the binary is a 1 and add them together. I should get the denary number: 32+4+1=37 This is how denary is converted to binary. Data Packets In networking, data must be formed in a package to be able to be transported over a network. Package formats vary for different types of networks. However the term data packet is always used to describe a package. A packet will contain a minimum of the foundation address, the destination address, data and error control. The foundation address is sent so the destination knows who sent the data. The destination address is used to find the right destination.Data is the actual information being sent. Error control is sent to help identify problems with the data once it has arrived at its destination (see chapter 1b for error detection techniques). Asynchronous and Synchronous Transmissions Asynchronous transmission means that the receiving device must accept the receipt of data before the source device will send more data. In synchronous transmission, both devices will synchronise with each other before any data is sent. Bandwidth (Analogue) Analogue signals are sine waves which look like the waveform in image 1. Sine waves are known as analogue signals is because they are an analogy of sound waves which travel in the same way.Analogue bandwidth is the number is cycles that occurs with the sine wave over a period of time, for example in image 1, the wave is 1Hz and occurred within 20ms so the bandwidth is 1Hzpms (1 Hertz per millisecond). So, finally, the bandwidth of an analogue signal is the difference in frequency between the highest and lowest frequencies contained in the si gnal. Bandwidth (Digital) Digital bandwidth is different to analogue bandwidth because digital signals are either 0 (off) or 1 (on) and look like squares (see image 1. 2). Digital bandwidth is the quantity of data that can be sent through a transmission over a specified period of time. These are generally measured in Bits per second (bps), Kilobits per second (kbps), Megabits per second (mbps) and Giga bits per second (gbps).Section2 Error detection and correction Parity (Odd and Even) Even  Ã¢â‚¬â€œ Parity checking is usually used for Bytes of data. A parity bit is added to every Byte of data transmitted, whether the ninth bit is ‘0’ or ‘1’ depends on the combination of the other eight bits. If there is an uneven number of ‘1’s then the parity bit will be a ‘1’, if there is an even number of ‘1’s the parity bit will be a ‘0’. There should always be an even number of ‘1’s in the data. For example: 1011001 Parity bit = 0 Odd  Ã¢â‚¬â€œ This works the same way as even parity checking, however, instead of the ‘1’s equalling an even number, they should equal an odd number.For example: 1011001 Parity bit = 1 Parity checking is easy to apply and can detect errors, however, it cannot correct errors, therefore, if an error is detected the data would need to be transmitted again. This method does not always work, this is because only an odd number of bits in error can be detected, if there is an even number of bits but there is still an error, this will not be detected. For example: 1011001 could be transmitted as 1100011. This is not the way that the data should have been transmitted but the error would not be detected because the data has an even number of bits in error. Cyclic Redundancy Check (CRC) Cyclic Redundancy Check is an error-detecting system. It performs a long division equation where the answer is thrown away and the remainder becomes the result.The data is then transferred and the same equation is done at the other end, if the remainder of the equation isn’t the same as the receipt, the data is corrupt and therefore rejected. Chapter 2 Section3 Communications Protocols Hyper Text Transfer Protocol (HTTP) Hyper Text Transfer Protocol is a set of rules that order the distribution of information over the internet. Its use to retrieve hypertext documents, which are interlinked text documents, led to the development of the World Wide Web. HTTP is a request and response made by the client and server, the client being the end user and the server being the web site. A client that makes a HTTP request using a web browser is known as a User Agent.The server, which stores resources such as HTML files or images, is called the Origin Server. Between the User Agent and the Origin Server may be intermediaries i. e. a negotiator who acts as a link between parties and examples are proxies, tunnels and gateways. HTTP is not controlled by the TCP/IP model and is the most popular application on the internet. Transmission Control Protocol/Internet Protocol (TCP/IP) The Internet Protocol Suite (or TCP/IP) is a set of protocols for communication used for the internet and similar networks. Its name derives from the two most important protocols in it, Transmission Control Protocol (TCP) and Internet Protocol (IP), which are the first protocols in the Internet Protocol Suite standard.The Internet Protocol Suite may be viewed as a set of layers that work together in the transportation of data from one place to another. The TCP/IP model consists of four layers, from lowest to highest they are the: †¢ Link Layer †¢ Internet Layer †¢ Transport Layer †¢ Application Layer File Transfer Protocol (FTP) File Transfer Protocol is a protocol that is used to transfer data from one computer to another computer or device. FTP is a protocol for file transfer which allows the transfer and change of files over a TCP network. A FTP client connects to an FTP server and the client can then make changes, add or delete files on the FTP server. An example of an FTP client would be the webpage upload feature on Microsoft FrontPage.FTP has been designed so files can be transferred to any FTP server regardless of operating system type or version. Open Systems Interconnection (OSI) The Open Systems Interconnections Basic Reference Model (OSI Reference Model or OSI Model) is a description for layered communications and network protocol design. This was developed as part of the Open Systems Interconnectio n intelligence. Basically, network architecture has been divided into seven layers. From top to bottom, these layers are: †¢ Application †¢ Presentation †¢ Session †¢ Transport †¢ Network †¢ Data Link †¢ Physical This is known as the OSI Seven Layer Model. Each layer is characterized by their formation. These provide services to the layer above and receive services from the layer below it.An example of this would be a layer that can provide error free communications across a network provides the path needed by applications above it. It then calls the next layer below it to send and receive packets that make up the contents. Comparison between the OSI seven layer model and TCP/IP model OSI Seven Layer Model The OSI Seven Layer Model is a model for data transfer through layered communications allowing data from one PC to be able to be read by another PC anywhere in the world. This model packets the data into many layers, an example would be the layers of an onion, so it then transfers itself to another computer where it goes through the same seven layers but in the opposite direction to unwrap those layers.See image 6 for the structure of an OSI Seven Layer Model. These layers don’t communicate across to their ‘doppelganger’ layer on the other computer. If they wish to communicate, they have to go through all the other layers that stand between them and their ‘doppelganger’ layer. This table to the right is basically explaining what each layer’s job is. (Table obtained from www. humanreffence. com under the download section) TCP/IP Four Layer Model The TCP/IP model captures data to provide idea of protocols and services. Data is captured in the same way as data is within the OSI Seven Layer Model, so data has to be captured on each level in the same way.The OSI Seven Layer model and the TCP/IP model are both similar in that they both use layers to perform tasks. They also have 2 layers that are very similar, the Transport and Network layers. The TCP/IP internet protocol suite has a wide range of protocols working at each layer of the OSI and TCP/IP models. Critical Comparison OSI and TCP/IP are both similar in a few ways, these being that they both work with layers to communicate, they are both a set of rules and they were also developed alongside. The Session Layer (OSI) In the OSI model, the Session layer allows two devices to hold on going communications called a session across a network. This is not found in TCP/IP.In TCP/IP, these characteristics are found in the Transport layer. The Presentation Layer (OSI) In the OSI model, the Presentation layer handles data format information for communications across a network. This is done by converting the information into a common format that both sides can understand. This is provided by the Application layer in the TCP/IP model. The Application Layer (OSI) In the OSI model, the Application layer is the top most layer of the model. It provides a set of interfaces for applications to gain access to services within a network as well as access to network services that support applications directly e. g: OSI – FTAM, VT, MHS, DS, CMIP TCP/IP – FTP, SMTP, DNS, SNMPAlthough the idea of an application process is common within both, their approach to the task of constructing application entities is very different. How OSI builds up applications OSI demands that distributed applications operate over a strict hierarchy of layers and are constructed from a tool kit of standardised application service elements, making them compatible. How TCP/IP builds up applications In TCP/IP, each application is created on whatever set of functions it needs beyond end to end transport to support a distributed communications service. Most of these processes build upon what it needs and assumes that only an underlying transport method (such as a datagram or connection) will be provided. Transport Layer (OSI)In OSI, the Transport layer takes the data that is going to be sent and breaks it down into individual packets that are sent and then reassembled by the Transport layer at the destinatio n. It also provides a signalling service which tells the sender that the destination had received the data has been successfully received. Transport Layer (TCP/IP) In TCP/IP, the Transport layer introduces two transport protocols, TCP and UDP. TCP implements reliable transportation of data whereas UDP doesn’t. The reason this is, is because TCP required acknowledgement to ensure that data is sent correctly and successfully. If an error is detected, the packet can be resent. UDP just broadcasts the data without any need for a reply from the destination therefore data transportation will be faster but will be less reliable as errors can occur.Comparing Transport for both Models Transport for both models is very similar as they both contain transfer protocols that required acknowledgement that data has been received by the destination. While this would be slower, this is more effective as data will always end up being sent correctly. Network Vs. Internet. Both OSI and TCP/IP support a connectionless network service. OSI’s CLNP is practically identical to the Internet’s IP. Both are best-effort-delivery protocols. They are virtually identical but the one major difference that sets them apart is that CLNP supports variable length addresses whereas IP supports fixed, 32-bit addresses. How to cite Theory of Data Communication, Papers

Friday, December 6, 2019

Social Media Networking Refers To the Use of Social Media Channel

Question: What Is the Social Media Networking Refers To the Use of Social Media Channels? Answer: Introduction Social media networking refers to the use of social media channels for communicating advertisement message to the target customers. The social media communication has several disadvantages and advantages and the business organizations struggle to find the best manner to use them. The presence of the internet-based social media has made it possible for a single person to communicate with the thousands of people all across the people. The social media provides immense opportunity for an organization to present itself and its products in a dynamic manner so that the communities and individuals remains interested. In social media networks, the companies can use a number of methods such as post, tags and blogs to post and attract potential customers. The content developed by the social media can be defined as a newly generated resource of online information, which the users create, spread and use to educate each other about the attributes and qualities of different consumer products. Due to its use of use, speed and reach, social media has become an essential part of the marketing strategy of the organizations. Moreover, social media promotions, marketing intelligence, sentiment research, public relations and customer management are the sub-disciplines of marketing (Christou, 2016). In this regard, the present literature review examines the role of benefits and the drawbacks of social media for the hotel service industry. Benefits of Social Media Marketing Hensel and Deis (2010) has discussed the benefits of using social media marketing methods for driving the profit ration and sales of an organization. The social media has become the driving force in the information age wherein the general public has attained the capability to create and consumer information and immediately distribute it on the internet. Different social media such as Facebook, MySpace and Youtube provides the business organizations with the opportunity to instantly connect with their customers and create a buzz regarding the new product. The literature has cited that after Faacebook, blogging is the most common tool for networking and social media tools. Online communities are also beneficial for the business organization as they provide cross-selling opportunities to different user groups who share same user platform. The business organizations cannot ignore social media marketing due to its immense benefits. It is commonly used by the consumers to take opinions of millions of other consumers. A large number of business organizations device strategies to influence the public opinion to drive its sales. The consumers can share ideas, photos, and video with social media. The business organizations have also realized that with the increased interaction with the social media websites, the companies can effectively meet the demand of their consumers. In the views of Mangold and Faulds (2009) has stated that with the emergence of the social media the traditional promotional techniques have changed. The social media can also be referred as consumer-generated media which refers to the variety of sources of online information which is created, initiated, generated and circulated online. Social media entails variety of online platforms such as blogs, company-sponsored discussions, chat rooms, consumer product or service ratings and internet discussion boards. The authors have similar views to Hensel and Deis (2010) regarding the use of social media and its benefits for the business organizations. However, the authors discuss the manner in which social media marketing is different from the traditional mediums of marketing communication. The literature cites that in contrast to the traditional marketing mediums, wherein the marketers possessed all the control over the marketing communication, the marketer possesses little control over s ocial media channels. In the views of Kaske, Kugler Smolnik (2012), with the increased popularity of the social media the companies are extensively using it for increasing their customer base. The business executives are challenged by trade-offs between different marketing initiatives. The decision of the marketing executives is based on the profit maximization of the organization. If the long term benefits of the social media are more than the cost, it will certainly be implemented by the organizations. Similar to the above discussions, it can be cited that the social media marketing methods can be used to increase the customer outreach, improved business generation, increased customer loyalty, improved customer satisfaction and avoidance of customer dissatisfaction. The most important benefit of the social media is that it has a relatively greater outreach with low costs. Pollock Rindova (2003) has discussed that social media platforms assist the business organizations to achieve greater sales as they assist the organization for direct call for action and access to the target market. Several companies have used social media for crowdsourcing and showcasing available discounts. The social media interaction also assists the companies in enhanced customer retention and increased customer loyalty. The companies can actively participate and steer communication with a large number of customers. Other than that, the companies can create a specific sphere of influence which can be created by the social media. Before the digital age, the customers opinion has minimum impact on the market dynamics. Social media is also critical in monitoring customer-to-customer communication and intervene when necessary. The word of mouth is considered as one of most persuasive form of promotion. The social media is also essential in increasing the transparency, enhancing the customers experience, analysing the feelings of the customers towards the product. Social media is also essential to reduce the market inefficiencies and increase the positively increase the competitiveness of the market. Vries, Gensler Leeflang, (2012) the investment the companies need to obtain new customers is much higher than investment in retaining the older ones. Therefore, retaining customers is beneficial for the companies. The companies can achieve high retention by linking brand to the social networks. The companies can also focus on resolving the customer issues as soon as they appear online to increase the customer loyalty. Improved customer communication is a qualitative advantage which can increase the social media visibility, permanence and reach to the customers. Drawbacks and Challenges in Social Media Marketing in Hotel Industry Minazzi (2014) has discussed that the major disadvantage of the social media is may spread outrage, discontent and ridicule among the employees. Therefore, it is important that the organization use social media monitoring to examine he customer satisfaction and avoid customer loss of trust and image. Verma, Stock and McCarthy (2012) have stated that in the hospitality industry, the customers heavily rely on the internet ratings and the feedback of the customers selecting the hotel for stay. The business and the leisure travellers both follow the recommendations of the fellow travellers as well as rely on the search engines to know more about the available hotels. The social media influences the marketing and the distribution on the hospitality industry. In this regard, it can be evaluated that the hospitality operators find it challenging to meet the standards of the international rating system and need to promptly respond to the queries and the comments of the social media experts. The literature has cited that traditionally, the most powerful marketing tool is word-of-mouth between the customers and the social media is an extension of this human network. The major challenge for the business organization with the arrival of the social media marketing is that the company has to r emain familiar with the latest patterns in the social media marketing and establish an attractive website to draw the interest of new customers. The search pattern of the customers initiates with the search of the hotels in the traditional search engines; later, the customers are search for the website of the company. If the website of the company is filled with negative reviews, it can reduce the customers to the company. The customer reviews can impact negatively on the willingness of the customers to book the hotel. According to the literature, the most significant challenge for the organization is fake reviews and feedback from the competing companies. It can be analysed that with the recent advent of the m-commerce and the smartphones, the customer reliance on the social media is increasing constantly. In regard to the business and the leisure travellers, it can be observed that location based innovations such as finding information about the services, directions to the establishment and the ability to make reservations in the organization has a positive impact on attracting the customers to the organization. The companies can use communication-based innovations such as text message, alerts, voice mails and wake up calls to increase the customer satisfaction. Noone, McGuire, Rohlfs (2011) have stated that the companies in the hotel industry are finding is difficult to keep up with the changing consumer demands. Although a large number of companies have adopted social media channels as a marketing strategy, the companies are yet to completely realize the full potential of the social media marketing on the marketing activities. The social media marketing is an effective strategy for customer acquisition and retention; however, there are several key issues which are needed to be considered in the development of social media marketing strategy. The company has to assure that its social media marketing strategy aligns and works in a coordinated manner with the sales and marketing activities of the organization. It is important for their effectiveness. Moreover, the companies should also consider whether they need a separate strategy for brand, owners and the corporate organizations. Another significant challenge is that the field of social media marketing is relatively new field and there are no experts available. The communicators have little knowledge regarding the property, location and the brand which can create discrepancies in the message transmitted to the customers. In the social media marketing, there should be in-house experts who have knowledge of the social media marketing. The companies can outsource the social media marketing activities to reduce the cost of the organization. According to Maha (2015), other issues in the social media marketing is that the web pages of most of the companies is not optimized. The hotel page should redirect the visitors to their official Facebook page, Twitter account and YouTube account. When the companys website is not linked with the social media page of the company, it is reducing the number of potential customers for the organization. Another mistake that the business organization perform is not to stay active at their official social media pages. Although, it is not necessary to always stay active at the social media pages, the companies should daily post attractive posts and videos on the social media. Gordon (2014) posits that hoteliers should maintain a positive attitude for the customers even when they are negative. It is observed that several times, the managers use rude or accusatory tones to the customers who have provided negative reviews and feedback. In this case, the organizations should focus on creating positivity from the negative reviews. They should be able to satisfy the negative customers and understand their needs and requirements by positively communicating with the customers. The companies also need to conduct research regarding the websites and the social media pages of the competing organizations. In the hotel industry, most of the companies create websites which are attractive and incomplete. Gonzalo (2012) has discussed that most of the business organizations have failed to integrate the social media marketing strategy in the business processes of the organization. It is important for the companies to understand that social media cannot be used singularly for marketing purpose. When the company is declaring something about the shareholders or community relations, it related to the public affairs. When the conversation is related to the corporate culture or the business to business sales, it is a matter of human resource and sales of the organization. It is important for the business organizations to understand that social media marketing is associated with several other divisions of business management. According to Pike (2015) another challenge in the social media marketing in the hotel industry is to remain consistent with the content. In the hotel industry, there is a lot of content available and the companies can daily churn out a large number of articles. However, the major challenge for the companies is to remain consistent with the matter and relate with the customers. In order to resonate with the customers and built a desire for the product or the service, the companies need an in-depth approach which provides quality content to the customers and increase their understanding of the priorities. In order to develop a successful social media marketing strategy, the companies need to develop clear and measurable objectives for the organization. The social media marketing should be developed after the clear analysis of the business objectives and targets. In the strategy development, the companies need to identify the target audience and the social media which can assist it is a chieving the goals of the organization. Summary It can be summarized that the social media marketing is an innovative and attractive method to attract large number of customers. It has wide outreach, cheap and can instantly connect with the target audience. However, there are several drawbacks of using the social media marketing activities. It is relatively new field, thus lacks experienced professionals. Moreover, the companies also struggle with the negative feedbacks and updating the website to provide a clear and consistent message. References Hensel, K., Deis, M.H. (2010). Using Social Media To Increase Advertising and Improve Marketing. The Entrepreneurial Executive 15. Mangold, W.G., Faulds, D.J. (2009). Social media: The new hybrid element of the promotion mix. Business Horizons 52, 357-365. Kaske, F., Kugler, M., Smolnik, S. (2012). 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