Saturday, August 31, 2019
Explain Expectations About Own Work Role as Expressed
In my role l am expected to support the teacher, to be reliable and build a good relationship with the children, encouraging them to the best of there ability in their learning, to assist their growth in knowledge and assist in enhancing their development, so they can grow holistically. To be aware of any weak areas that I come across whilst working with the children, for example a child that may need extra support within their numeracy, literacy or phonics time. I am also expected to deal, to the best of my ability, with challenging aggressive, rude or traumatised children.Whilst I may need to do this at times I am also aware that the class teacher is there for support. I have had to deal with bad language used by a pupil when dealing with the child I explained that the words used where not words that should be used. I found out why the pupil had said those words and asked what words we could use instead. As well as working with my own class teacher I can be asked at times to go and support another teacher in another class. I am expected to adapt very quickly to the other class and to the lesson there having.My role also means that I will support the children so they are confident in there journey though the school. It is important that I conduct myself in the correct manner within the school as children will often mirror others actions. I remain professional at all times and act appropriately. Any ideas or suggestions that I have with regards to anything that could contribute to the smooth running of the class, is always welcomed, and l have done this on occasion. When l take the children out for there guided reading session, if l notice a pupil that is finding there book easy I am able to move them up a level.If l do this for a pupil l note there name and the colour group l have moved them to so the class teacher can then check the level is suitable for them. With regards to dress code I feel that I should dress smart/casual and by doing this I feel my stand ard of work benefits. I am also representing the school and I feel (also as a parent of a child in the school) that it is important for other parents/carers to see the staff whatever your role looking smart and well presented. This has also made me approachable to parents and they come to me as well as the class teacher.
Friday, August 30, 2019
Osmosis
The purpose of this experiment was to test different solute concentrations on the rate of osmosis. Artificial cells were filled with different solute concentrations and placed in water and weighed at equal time intervals to show how the water moves across cell membranes and down its concentration gradient into the lower concentrated area. The weights of the cells were recorded each interval, and then the rate of osmosis was found by calculating the corrected cumulative change in weight.The prediction made was that the cells with the higher solute concentrations ould have a higher rate of osmosis and the cell filled with water and placed in 40% sucrose solution would have the highest negative weight change. Introduction The diffusion of free water across a selectively permeable membrane is called osmosis. A selectively permeable membrane allows certain substances to cross it more easily than others (Reece, et al. 2011). Osmosis is an important process to cells because the cells are co ntinuously trying to achieve concentration equilibrium.The tonicity of a solution is the ability to cause a cell to gain or lose water molecules (Reece, et al. 2011). If a cell is in an isotonic solution, the cell does not gain or lose any water molecules, causing the net gain of weight to be zero. If a cell is placed in a hypotonic solution, there is a higher solute concentration in the cell, making water molecules move into the cell to help reach equilibrium. This causes the cell to gain weight. If a cell is placed in a hypertonic solution, there is a higher solute concentration outside the cell, making water molecules leave the cell to attain equilibrium. This causes the cell to lose weight.Other factors, like the temperature, the particle size and the concentration gradient affect the rate of osmosis. An increased temperature can increase the rate of osmosis and osmotic pressure (Traxler 1928). Also, the particle size determines what can pass through the selectively permeable me mbrane; the channels imbedded in the membrane can only accommodate certain molecules based on size and function. Finally, the concentration gradient affects the rate of osmosis because the rate depends on how high the concentration of the solute is; the higher the concentration, the faster water moves to that concentrated area.Materials and Methods The materials needed for this experiment are: five strips of Spectra/Por 4 dialysis ubing with a pore size of 4. 8 angstroms, ten clamps, five beakers labeled 1 through 5, a graduated cylinder, and 20%, 40%, and 60% sucrose solutions. The experiment begins by softening up the dialysis tubes by soaking them in a beaker of water. When softened, rub the dialysis tubes between your fingers to reveal the opening and clamp the opposite end. Add 10 mL of the appropriate solution to each bag, squeezing the air out of the tube to make sure there are no air bubbles when clamping the other end of the tube.Three of these bags will be filled with 20%, 40% and 60% sucrose solutions. The other two will contain water. Weigh each bag on a appropriate solution, Just enough to cover the bag; four will have water and the fifth beaker will hold 40% sucrose. The bags containing 20%, 40% and 60% will be placed in water, as well as one bag filled with water; the bag of water in water will act as your control. The other bag of water will be placed in the beaker containing 40% sucrose solution. Place the five bags in their rightful beaker simultaneously and record the time.Every ten minutes the bags should be removed, blotted to get the excess solution off and then weighed. Continue weighing the bags every ten minutes or ninety minutes. To minimize experimental error, the temperature must be the same for all beakers and the bags must be blotted before weighed as much as possible to get the excess solution off. Also, the same amount of solution should be put into each beaker. Results The increase in the rate of osmosis is due to the different concentrations of sucrose, as shown in Figure One.This figure shows the weight change over time for the 20%, 40%, 60% and water in 40% sucrose solution. The results of the total weight change were: 20% sucrose in water= 5. 47 g 40% sucrose in water= 7. 31 g 60% sucrose in water= 7. 8 g Water in 40% sucrose= -4. 08 g The points plotted were used to calculate the rate of osmosis by finding the slope of the best fit line of each test. The results for the rates of osmosis were: 20% sucrose in water= . 0551 g/min 40% sucrose in water= . 0728 g/min 60% sucrose in water= . 0811 g/min water in 40% sucrose= -. 68 g/min The slopes have an increasing pattern as the sucrose concentration goes up. This means that the rate increases as the sucrose concentration increases. The corrected cumulative change in weight relates to the osmotic rate because it is divided by the time. The direction affects the rate because, if the direction of osmosis changes the rate becomes negative. Discussion The resu lts show that the solute concentration of the solution affects the rate of osmosis because the larger the concentration gradient, the faster osmosis occurs.This makes sense because the farther the cell is from osmotic equilibrium, it will gain weight faster (McCutcheon 1926). This supported our prediction. The increase in osmotic rate because of an increase in solute concentration is because water moves from a solution of low solute concentration to a solution with high solute oncentration. This means water rushes into a solute of higher concentration faster than a low concentration. This is why the artificial cell with 60% sucrose solution had the highest corrected cumulative change in weight and the fastest osmotic rate.The artificial cell containing water in 40% sucrose solution had a negative osmotic rate because water was leaving the cell and osmosis was occurring in the opposite direction. In this experiment, only one bag of water was placed in 40% sucrose solution. In other e xperiments, adding two more bags of water and placing them in 0% and 60% sucrose solutions could be tested to see if the rate of osmosis is similar performed to show temperature is a factor in osmotic rates by having the same solute concentration in solutions and placing bags filled with water into them, each having a distinct temperature.References McCutcheon M, Lucke B. ââ¬Å"The Kinetics of Osmotic Swelling in Living Cellsâ⬠. Laboratory of Pathology, School of Medicine, University of Pennsylvania. 1926. Reece JB, Urry LA, Cain ML, Wasserman SA, Minorsky PV, Jackson RB. Campbell Biology. Ninth ed. Pearson Education, Inc. 2011. Traxler RN. ââ¬Å"The Effect of Temperature on Rate of Osmosisâ⬠. Journal of Physical Chemistry. 1928. 1 . This graph shows the corrected cumulative change in weight taken every ten minutes to study the rate of osmosis. . The data was collected by measuring the weight of each bag after 10 minutes and finding the difference in weight between the s tart of the experiment and each increment of time. 3. The graph shows that the higher in concentration of sucrose, the faster the rate of osmosis occurs meaning that concentration and rate of osmosis are directly related. Also, this graph displays the opposite happening when water was placed into sucrose, but is still directly related.
Thursday, August 29, 2019
Police future and using of new Technologies Essay
Police future and using of new Technologies - Essay Example Local law enforcement agencies are part of the overall DHS team, even while taking care of local issues, as they are also at street level and most likely to gather information from neighborhood contacts (Peak 2012). Many of the tools devised by the military are now being used by the law enforcement communities to help overcome issues of restricted manpower and availability on the streets. Tools used by the FBI and the NSA, particularly within the surveillance realm, are being used, such as advanced electronic apparatus that will pick up any phone and texting messages being sent in any given area that is being monitored by the Stingray (Sabalow 2013). This mobile device picks up the transmissions from a close-by tower and relays it back to the mobile deviceââ¬â¢s antenna and is then downloaded to a laptop. By all formal accounts, actual phone conversations and text messages are not picked up in real time. The point is to determine those suspected phone numbers, which link people being watched, with others who may yet be unknown to the police, until that linkage occurs. Location of the phone call or message is recorded by location and time, perhaps placing certain suspicious people close to so me event that has occurred, or is likely to occur, such as a bombing. The next step for law enforcement is to get a warrant that can be applied to the towerââ¬â¢s carrier and thus, be able to get more information from the carrier on the suspected people involved. However, there is always room for abuse in determining just when the original information was gathered, thus necessitating that warrant, or if one was even obtained. Not only are suspected people under surveillance, so are those people who just happen to be in that area where the tower is located (Sabalow 2013). It would be ideal if law enforcement could come up with fine-tuned technology that could just follow the suspicious phone numbers and text messages by setting up a technological code on the
Wednesday, August 28, 2019
CRIMINAL JUSTICE - CRIMINAL JUSTICE SYSTEM ASSESSMENT, CONSISTENCY, Essay
CRIMINAL JUSTICE - CRIMINAL JUSTICE SYSTEM ASSESSMENT, CONSISTENCY, SENTENCING AND PROSECUTION - Essay Example er only 48% believed that criminal justice system is effective to bring criminals to justice; fewer still believed that the system was able to deal with cases efficiently, and only 26 % believed that the needs of the victims were met by people. 2 So overall, these findings show that people perceive that Justice System treats suspects well yet, it is not always capable to protect the rights of victims. Ethnical minorities however are more confident that their rights can be protected by current criminal justice system, though they perceive that the legal system might be prejudiced to them if they are suspects or witnesses in the case. 3One of the most serious conclusions that can be drawn from British Crime Survey is that the confidence of the victims decreases once they have contacted the police. In order to evaluate the level of confidence of the population in current legal system, BCS of 2000, asked respondents how good the job of various agencies was performed. According to the finding all agencies mentioned in the report had received high rankings, however there was sharp decrease in the level of confidence in the police, whereas the level of confidence in al other agencies decreased less sharply. 4 Apart from evaluating the level of confidence, the survey also provided some insight in the factors that contributed to the decline of confidence. The survey found that men were less confident in criminal justice system than women; those of middle aged were less confident than young men and women. The more educated the person is the less confident he is in the justice and efficiency of the system. However, there was almost unanimous agreement among all groups of people that legal system protected the rights of accused and suspects. 5In spite of the fact that there was some variations in the perception of efficiency of the justice legal system among various groups of population as Black and Asian respondents treat criminal justice system better than white
Tuesday, August 27, 2019
The most important asset in any organization is its people Research Paper
The most important asset in any organization is its people - Research Paper Example The most important asset in any organization is definitely its people. Apple, Inc. is a benchmark of best practice in customer relationship management to gain market loyalty and maintain its high competitive edge. Apple performs what is referred to as movement marketing, an interactive CRM program that does not simply tell customers what products they develop, instead Apple builds interaction with buyers to gain trust and respect for its products (Goodson 2). Apple utilizes social media in a variety of different formats, such as Facebook and Twitter, to engage customers in real-time relationship development. One must keep in mind that none of these CRM concepts occur in a proverbial vacuum, it requires talent management and direct development of website content and mobile marketing communications to build a positive identity with customer segments. If Apple did not engage its employees to be relevant and socially-important elements of the consumer experience, it would lose considerab le market share to other technology producers. It should be recognized that Apple would not be able to maintain its high market share without human intervention in movement marketing. Organizations that rely on corporate or individual venture capitalist investment to succeed in their markets are more successful when they use human capital to justify investment opportunities. Companies that have a well-established corporate culture are considered to sustain some of the best investment opportunities (Very et al. 598). Investors seem to understand that human capital gives a business substantial advantage in terms of better performance, better knowledge transfer and technical expertise. When a company requires investment, they are in a better position to gain investor support when they provide evidence of quality culture existing within the business structure. Companies that are decentralized also have high advantage since decision-making is shared by a variety of skilled professionals instead of just being dictated by a single executive. According to W.E. Deming, a respected business theorist, 85 percent of all business failures are a direct product of management. Businesses that want to remove failures from its strategic plans and goals require risk analysis, environmental scanning, and recognition of potential opportunities. A business has much more advantage when these activities occur from many different knowledge professionals than through the single assessments of one executive leader. Finally, the most important asset is people due to the fact that organizations need to provide products and services that fit a consumer need. What distinguishes a successful product or service brand from competing brands is the personality and attitude of the brand. According to marketing theory, consumers will become attached to a product or service if it provides them with opportunities for self-expansion and self-esteem growth. It is from brand attachment where loyalty is established. In order to accomplish this, such as with companies like Cover Girl, the business must use effective promotional materials that have lifestyle relevancy and can illustrate that the organization can
Monday, August 26, 2019
The Economic Boom in Qatar, UAE & Saudi Arabia Research Paper
The Economic Boom in Qatar, UAE & Saudi Arabia - Research Paper Example Even though the recent political developments in the Middle Easter countries like Egypt, Libya etc are causing some impacts in these three countries, nobody expect a political instability in these countries because of the higher level of standard of living in these countries compared to that in other neighboring countries. Dubai, one of the prominent emirates of UAE faced some financial problems recently; however, Abu Dhabi was able to lift Dubai from the recent financial crisis. In other words, different emirates in UAE are helping each other when any of them face trouble which is the major reason why United Arab Emirates was able to develop properly. Business is the major revenue source of UAE. Saudi Arabia on the other hand is blessed with immense oil resources and their economy is highly dependent on the oil revenues. Qatar has revenues from oil resources, tourism, marine products etc. This paper analyses the economic booms in these three Middle Easter countries; Qatar, UAE and S audi Arabia. The Economic Boom in Qatar Qatar is one of the prominent Middle Eastern countries which have diverse ranges of revenue sources. While most of the other gulf countries rely heavily on oil revenues for economic development, Qatar is blessed with oil resources, marine products, tourism, real estate revenues etc. According to the 2010 statistics, Qatarââ¬â¢s GDP real growth rate is 19.4% compared to 9.5% in 2009 and 11.7% 2008 (Qatar GDP - Real Growth Rate) (See Appendix for more details). It is evident from the above statistics that the GDP growth doubled in year 2010 compared to that in year 2009. Perhaps, no other country in the world has ever recorded such phenomenal growth rates over a year period of time. Oil and gas account for more than 50% of GDP, roughly 85% of export earnings, and 70% of government revenues. Oil and gas have made Qatar the second highest per-capita income country. Proved oil reserves of 15 billion barrels should enable continued output at curr ent levels for 37 years (Qatar Population) Oil resources are nonrenewable energy sources. It is exhausting day by day because of over exploitation and increase in the number of automobile vehicles which make use of oil resources. In other words, the demand for oil resources is going to be increased in the coming years. Qatar is one country which has higher oil stocks at present. In short, Qatarââ¬â¢s economic progress may not be affected at least for another thirty or forty years of time because of their oil stocks. Business, tourism and marine products are some other revenue sources for Qatar. Qatarââ¬â¢s coastal areas are blessed with some rare species of fishes. About 150 different species of fishes were recorded in the seacoast of Qatar. ââ¬Å"Sweet lips, emperors and snappers, goatfish, shark, groupers, barracudas, thread fins, lizard fish and rabbit fishâ⬠etc are some of the rare fish species available in the sea coast of Qatar (Qatar, 2005) Qatar has a wide coast al area and historically, fishing is one of the major revenue sources for the Qataris. Another reason for the economic boom in Qatar is the development of good educational practices. Qatar is doing everything possible to give good education to its people. They realized that educated people are one of the major pillars upon which a country can develop. Many American, Canadian and British universities are operating in Qatar.
Sunday, August 25, 2019
Darkness at noon by Arthur Koestler Research Paper
Darkness at noon by Arthur Koestler - Research Paper Example Darkness at Noon stands second in series of a trilogy of novels that revolves about the fundamental theme of political ethics and revolutionary ethics in general. The other two dystopian novels written at the same time were Brave New World by Huxley and Nineteen Eighty Four by Orwell. These novels are unique in themselves as they reveal ugly truths and disturb us. The title of the novel is aptly named as Darkness at Noon. Noon time is the brightest time of the day and it is only during extraordinary situations (such as a storm or solar eclipse) that noon is engulfed in darkness. The same darkness is felt in the heavy oppressive theme of the 2 novel that starts with a prison scene and ends with acceptance of guilt. The darkness reflected in the book was actually a reflection of the political scene prevalent in the political history of Soviet Union. Just at a time when Communism was rising at its peak like a glowing sun, there came a solar eclipse in the lives of the leaders and took a way many of their lives. What was more surprising that most of these leaders willingly accepted their so called crimes just for the sake of their party. The book looks into the interior monologue and the dire circumstances that make the men take up such extreme steps and sacrifice their names along with their lives. The story set in 1930s is compelling, didactic and angry. It revolves around Nicolas Salmanovitch Rubashov, who is imprisoned for counter revolutionary activities. Rubashov is an aging Communist Party member, now locked inside a cell as an indictment against a series of crimes that he could not have possibly committed. He has been ordered to be shot as soon as he publicly accepts the charges. But, he refutes the stateââ¬â¢s offer to confess his guilt in public. Rubashov is not a saboteur, just a good communist. Though Rubashov possessed some degrees of independent thoughts and had arrogance of manner, he could not have committed such a serious crime such as conspiracy against his country. The country of his confinement is not confirm though from the various descriptions people can make out that he belonged to the Soviet Union and is confined in one of its cells. 3 Rubashov is arrested for crimes against the State and repeatedly interrogated and psychologically tortured till he give up and accepts those charges. As a former communist Koestler closely examines the high level of dedication filled in these Communists so that they readily confessed to quite ridiculous crimes at the Stalinââ¬â¢s Show Trials of the 1930s. By making the protagonist accept the guilt of the crimes, he projects that once you convince yourself that the ends justify the means, you should not be surprised when those means are turned against you. Soviet Union was experimenting to construct a new society. But, to make that society individuals were required to sacrifice some things. These ââ¬Ësome thingsââ¬â¢ were life and a lifelong created reputation. Any sort of poli tical deviation would weaken the roots of that society Thus, by sacrificing himself, Rubashov have a feeble hope that people would take it as a lesson and never deviate from the paths of moral standings. Darkness at Noon is one of the first literatures to be found on Soviet Union in the English language. According to George Orwell there was ââ¬Å"in England almost no literature of disillusionment about the Soviet
Saturday, August 24, 2019
Collaboration and Peer Reviews Essay Example | Topics and Well Written Essays - 500 words - 1
Collaboration and Peer Reviews - Essay Example Also, a project can be completed much faster when collaborating because each team member can focus just on what they are good at. Working as an individual requires someone to be involved in every role; group work means that each person can specialize. On the other hand, collaboration on a project means that some people may slack off because they think that others will do the work for them. Some people are just naturally lazy, so being part of a group allows them to receive a grade that they donââ¬â¢t deserve. Another disadvantage to working as a group is that there can be disagreements among group members. A famous saying that shows this is ââ¬Å"too many cooks spoil the broth.â⬠The same can sometimes be true in collaborating on a projectââ¬âeveryone thinks that they know what is best for the group and they try to impose their views on others. No one is willing to compromise and, as a result, the project turns out to be a disaster. By reviewing my peersââ¬â¢ writing, I have been able to get different views on how to write a paper. Everyone has a different style when it comes to writing, so to learn from someone elseââ¬â¢s style can benefit my own writing. Of course, some of my peersââ¬â¢ writing may not be up to scratch; this is where I can offer advice and hopefully improve their writing ability. In doing this, I can think through the thought processes that go into writing and I can adapt my style so that I am a better writer in the long term. The good thing about getting my papers reviewed by my peers is that hopefully they will pick up on something that I may have missed. Because they have attended most of the classes with me, they have been taught the same writing principles that I have. Sometimes, another person can catch something that I havenââ¬â¢t because they are reading it with fresh eyes. A negative to having my peers review my papers is that they perhaps do not have a
Discussion Questions( corporate governance& ethics) Essay - 1
Discussion Questions( corporate governance& ethics) - Essay Example Businesses subscribing to ethical behavior tend to gain tangible rewards in the sense that ethics not only portray any brand as being clean and above board, but they also streamline and organize the internal functioning of the businesses. Considering the contemporary business environment defined by a cut throat competition, ethical credentials endow businesses with sound and reliable USPs that eventually translate into an enhanced market share and big profits. Affiliation to credible ethics makes the consumers and the investors feel positive about any business and bolster its public perception as a business that is trustworthy and reliable. Respect for law, caring for environment, being punctual with customer care, being transparent and accessible are not mere pies in the sky, but are the very fundamentals that form the bedrock of any sustainable and profitable business. Market share, investor trust and brand appeal is primarily about perceptions and commitment to ethics influences the perception about any business with the consumers and the investors. Sound ethics endow any business with a strong brand appeal and investor's interest. Hence the businesses that subscribe to ethics stand to gain much in the long run. Allegiance to ethics always has a direct positive influence on the public perception, brand appeal, stock prices and market share. A dependable reputation is the ultimate reward that a business can harvest out of its ethical commitments. Answer 2: Corporate Governance Corporate governance is the overall vision that defines the direction and functioning of a corporation. The concept of corporate governance is dependent upon accountability in the sense that it lays down the respective duties and guidelines for the different human constituents of a corporation. Corporate governance elaborates the procedures and norms that are adhered to while making decisions in a corporation. Corporate governance directly influences the predominant moral order that has a direct bearing on the parameters used for assessing the final performance of a corporation and chalks out the strategies resorted to, to achieve the objectives cherished by a business. Broadly speaking corporate governance is about transparency, morality and accountability. The stakeholder approach of corporate governance is more closely aligned to the given definition. The conventional stockholder approach to corporate governance is utterly narrow in its scope. Stockholder approach to corporate governance assesses the performance of a corporation in terms of quarterly results, balance sheets, net profit and stock prices. Such an approach owes allegiance to just one entity that is the overall interest of the stockholder. The fact is that any corporation is run by humans and has a human face that is continually monitored by the society. Net profits cannot be and should not be used as the sole criteria for evaluating the performance o
Friday, August 23, 2019
Assignment Research Paper Example | Topics and Well Written Essays - 3250 words - 1
Assignment - Research Paper Example The organization suffered greatly by having a single-legged man in ass-kicking contest with the same leg behind the back. The Seminole tribe being in war with the government despite the Casino being operated for 20 hours. The organization lacked control over the movement and fixing the machine. Workers were also unreachable during the weekend. There is further a weakness of lack of three rules, and each person does what he feels. Further, the firm could never okay the advertising. Further, the firm suffered from the unwillingness of customers to buy FL casino. Customers yawn to attend casino but are scared by the stringent rules. The state gaming competed with the casino. The firm suffered from the inability to operate outside the city due to lack of trust amongst the three brothers. The firm stands to benefit from the looming tax reduction that is moving downwards from initial 65% to 45% to the projected 25%. Moreover, with little competition arising from the last ten years and the tax reduction is an opportunity for expansion. In addition, there has been favorable legislation in WI dog and snowmobile racing making tribes to be aware of the casino ops hence turning out to masses. Further, the legalization of gambling by NY, PA is another lucrative opportunity for expansion. Further the exit by Atlantic City is also an opportunity for the organization to expand. The organization suffers from the threat of being highly taxed and regulated paying 45 cents per dollar. However, there has been a tax reduction from 65% moving downwards to 25% offering a lucrative opportunity for the organizational expansion. The other threat that affects the firm is that of Dade community campaigning against gaming. The stringent laws en enacted in Dade City that saw Jed Bush government winning in 2008 and subsequently restricting under 21 from accessing the Casino in the following year. Further, the gaming rules are so harsh that keeps away the potential customerââ¬â¢s posing a
Thursday, August 22, 2019
Liberalism and Colonialism Essay Example for Free
Liberalism and Colonialism Essay Liberalism is both egalitarian and inegalitarian, it stresses both the unity of mankind and the hierarchy of cultures, it is both tolerant and intolerant, peaceful and violent, pragmatic and dogmatic, skeptical and self-righteous. Bhikhu Parekh examines the writing of John Locke and John Stuart Mill, two of greatest liberal philosophers. Locke state that the Indians had cultivated and lived on their land for centuries and it was their ââ¬Ërightful inheritanceââ¬â¢. He asked the English settlers for information about the Indian way of life, and built up an impressive collection of books dealing with the European exploration of the Americas. The Indian way of life offered a realistic contrast to, and provided most valuable insights into, the nature and structure of political society. Lockeââ¬â¢s analysis of the nature of reason was complex and inconsistent, by and large he thought that it analysed and reflected on the sense impressions, perceived similarities and dissimilarities between different events and entities, traced their causes, and formed universally valid generalizations. Locke analysed English colonialism in America in terms of his theory of man and society. He argued that since the American Indians roamed freely over the land and did not enclose it, it was not their land; they used it as one would use a common land, but they had no property in it. In Lockeââ¬â¢s view, English colonization not only did them no harm, but also respected their natural rights and conferred on them great economic, moral, cultural, scientific and political benefits. Locke characterized two modes of colonization, one based on ââ¬Ëconquest by swordââ¬â¢ and represented by Spanish, the other based on commerce and represented by the English. Whilst Lockeââ¬â¢s principle of equality offer at least some moral protection to Indians, it offered them no political protection. Indians were entitled to equality as individuals, but not as an organized society. As individuals their basic rights and interests were to be fully protected. Locke defined equality, it obtained only between the civilized nations and placed the non-civilized societies outside the pale of international law and morality. For John Millââ¬â¢s philosophical ideas, Europeans were interested primarily not so much in unburdening their surplus population and settling in these countries as in trade, commerce and olitical control. This new phase of colonialism usually called imperialism. For Mill, man was a progressive being whose ultimate destiny was to secure the fullest development of his intellectual, moral, aesthetic and other faculties. In Millââ¬â¢s view, human beings had both a natural and a historically acquired tendency towards conformity, which only a few were able to fight successfully on their own. For Mill as for most other liberals, individuality represented human destiny, but it was not underwritten by and even went against some of deepest tendencies of human nature. Like Locke, Mill divided human societies into two, but his principle of classification was different. In some societies, which he called civilized, human beings were in the ââ¬Ëmaturity of their facultiesââ¬â¢ and had ââ¬Ëattained the capacity of being guided to their own improvement by conviction or persuasion. By contrast all non-European societies were ââ¬Ëbackwardââ¬â¢, and human beings there were in a state of ââ¬Ënonageââ¬â¢ and ââ¬Ëinfancyââ¬â¢. Although Mill stressed the value of diversity, he defined its nature and permissible range in narrow terms. He linked diversity to individuality and choice, and valued the former only in so far as it was grounded in the individualist conception of man. It ruled out traditional and customary ways of life, as well as those centred on the community. More so than Locke, Mill condemned the racist arrogance of and the misuse of political power by the colonial bureaucrats and yet he had no difficulty sharing the colonial contempt for native cultures and approving of the violence used to dismantle them. Both Locke and Mill shared a firm belief in the equality of men and used it to justify and regulate colonial rule. And they also failed to understand the extremely complex relationship between human being and their cultures. Liberals do believe in equal respect for all human beings, but they find it difficult to accord equal respect to those who do not value autonomy, individuality, self-determination, choice, secularism, ambition, competition and the pursuit of wealth.
Wednesday, August 21, 2019
Joseph Mallord William Turner Important English Painter English Literature Essay
Joseph Mallord William Turner Important English Painter English Literature Essay Considered by numerous historians of the art like the most important English painter for all time, it demonstrated to be carrying of an unusual talent from very early age and in 1789, just by 14 years, its father, barber of profession, it registered it in the school of art of the Royal Academy of which it would happen to be effective member as of 1802. Its life was signed by a capacity of artistic creation without rest and a total dedication to the drawing and the painting, in addition to the numerous trips that made until 1845, shortly before its death, and that was shaped of concrete way in the set of their works. Therefore, in 1795 it consecrated one of his first trips to the preparation of sketches in Wales of the south and the island of Wight. Soon, in 1802, during La Paz of Amiens, one went for the first time to the foreigner crossing France until Swiss the Alps and, to its return, one stopped in Paris to contemplate works of Claude Lorrain, Tiziano and Poussin in the Louvre. Later it crossed Belgium, Holland and the Valley of the Rin and, in 1819, stepped on for the first time Italian earth to which it would return in three opportunities. These reiterated visits had singulars repercussions in their art to which reference will be made more ahead. Although, since it has been said previously, Turner prodigiously was equipped, had to fight hard to find its way. First from its watercolors of which it is had registry dates from 1787, when only it was twelve years old; in 1794 he was already a teacher of the style and the traditional technique of the landscape treated in drawing and watercolor, the ilustrativo-topographic planning. Nevertheless, as of this moment, a marked interest begins to demonstrate itself on the luminous phenomenon and the first indications of a romantic interpretation of the nature. Against this background, the work acquires great relevance that Tuner carried out, in collaboration with the watercolorist Thomas Gritin, in the residence of the Dr. Thomas Munro, English painting collector, that adjudged to both artists the preparation of some copies and the culmination to them of sketches and incomplete works of one of the parents of the English paisajismo: J. R. Cozens, that was, in addition, a recognized water colorist. Therefore, from a deep reflection on the work of Cozens and the collaboration with Gritin, Turner was able to free itself of certain convencionalismos seeing itself favored, in this way, the manifestation of a more personal style in the one than their conditions of colorista were harnessed. Through present work, it will be tried to put light on some coordinates that, is expected, allow to draw up the peculiar aspects of the art worked by the posrrevolucionario romanticism. Therefore, in the first part of this monograph they will be exposed, sucintamente, some essential characteristics of this movement in which the emergency of the new sensitivity that found echo, in the artistic creation, the appeal to an unpublished freedom under the primate of the individuality and the introspection acquires a central place. Finally, a route through the recognized work of paisajista English Joseph Mallord will set out William Turner, who managed to shape like few the tragic condition of escindido romantic I, a man to whom the access to the mysteries of the nature has been forbidden him and, therefore, of its own existence. Irrationality and I disillusion the irrational force deployment, that had been folded during the century of the lights, and that characterized to the romantic movement, an inheritance of the French Revolution can be considered. Although many contemporaries conceived in the revolution a potential arrival to the Age of the Reason, today we know of the vertiginous failure who suffered their ideals and programs. Nevertheless, and as it express H. G. Schenk: [] The explosion of the subconscious irrational impulses that characterized so many aspects of the revolution was the signal of battle of the romantic ones against the reason. Therefore, the revolution helped to send the romantic movement. Against this background, it turns out advisable to clarify that the love that the romanticism declares by the irrational aspects is not concomitante with the rejection to the reason but with the necessity of its extension taking care of questions marginalized by the hegemonic thought of century XVIII: sensitivity, the intuition, the imagination, the dreams, the passion. Therefore, the illustrated, happened project in scientific ideology of rationalization technical of the world, he was questioned by the desatencià ³n which one was put under an essential part of the human nature. The romanticism and, consequently, the art that east movement practiced are born like answer to this conjuncture: the triumph of the dehumanized scientific conception of the world and its intention of dominion of the man and the nature to which the frustration as opposed to the defeat of the revolutionary ideals must be added, germ of the restoration of a new tragic time. The disappointed romantic man notices that a time lives that in the open leaves Gods them have left it, that have been expelled from the harmony with the nature. It feels that his I one is escindido in two: mind and soul, and will long for a mythical reconciliation, that is to say, the return to a Golden age, identified with the old Greece, in which the myth was language of the creation of the world and source of answer to the essential questions of the man which they cannot be solved from the scientific rationality. In frank rejection to division of fields of knowledge, romantic contemplates to Greece archaic, in that truth, beauty and nature formed an all only one to which the man acceded, like the moment where it materializes yearned for ideal of union of poetry and science. As it will be exposed more ahead, great part of the anguish and desolation of the romantic man is based in the conscience of which such reconciliation is, in truth, impossible. The revolution of the art Numerous historians maintain that the artistic creations of the revolutionary period do not present/display innovations at stylistic level but that, on the contrary, remain within the canons of the old clasicismo the Rococo. Nevertheless, in a specific sense, it is possible to speak of a revolutionary art since although these pictorial works present/display a continuity with the own style of the clasicismo, during this historical stage it dominates the classic forms a new content and a new sense to him. Therefore, as it express Arnold Hauser, with the revolution the art becomes a confession of political faith that finds its motor in the persecution of the social transformation. The importance of the revolutionary art is based not as much in the art that practiced but for that laid the the foundations: the romantic movement. The stylistic innovations were supeditadas to the blossoming of a new society, a new conception of the world and the man that were materialized, soon, in the posrrevolucionario art. The sign of the romanticism As it is known, the romantic term is extremely multipurpose. The use of this word (derived from romance) is registered, primigeniamente, in the England of century XVII. In just a short time, the term romantic peyorativamente began to be used by the rationalism. Was used to describe it that remote thing of the reality or that had fantastic characteristics, strange, improbable, false it. At the same time the word was used romantic to allude to natural landscapes that presented/displayed unreal aspect, fantastic, huge. These meaning stayed throughout the half following century and, little by little, they were taking a more positive shade. Finally, she was Rousseau who carried out a reinterpretacià ³n of the term that, this way, happened to indicate the qualities of an object to indicate the feelings of the subject. This rousseauniana interpretation of the romantic term was inserted quickly in Germany where it was incorporated like the aesthetic category that corresponded with the new sensitivity that was being developed in Europe.
Tuesday, August 20, 2019
Prison: Impact And Effects
Prison: Impact And Effects Jump to:à Theories of New Punitiveness | The Effect of Prison on the Family | The Effect of Prison on the Communityà |à Conclusion Currently, the impact and effects of imprisonment, which is a means of social control, are increasingly becoming various and noticeable. This essay will first focus on the concept and the different models of social control. Then social functions, official aims of imprisonment and an example of a prison population crisis will be respectively examined in relation to sociological theories, new punitiveness and political economy, which are three main influences on imprisonment. Finally, the negative impact of imprisonment on both families and communities will be shown. Imprisonment as a concept of social control has a long history. In nineteenth century, social control paid more attention to both connecting sociology to political philosophy and settling the controversial discussions of macro-sociology (Janowitz, 1975, cited in Cohen and Scull, 1983). Social control, at that time, solved a great number of complicated issues, but the purely coercive controls were not widely used (Cohen and Scull, 1983). During the twentieth century, the social control, even sociology was to be a point of view and method for investigating the processes by which individuals are inducted to and induced to co-operate in some sort of permanent corporate existence we call society (Park and Burgess, 1924, cited in Cohen and Scull, 1983, p5). Indeed, the alteration of the process that inducted the individual into society had great benefits on social control. Additionally, at present, the concept of social control is basically defined as: any structure, process, relationship, or act that contributes to the social order (Liska, A.E, 1992, p3). Currently, there are three regulatory models of social control. The first model is custodial institution, which is established on the theories of social order and punishment and the police and prisons are the representative organizations of this model. In addition, community care, such as welfare agencies and halfway house, are also important methods of social control. In particularly, the custodial institution and community care create formal methods because of the rules, law and rehabilitation, they base on. The third model, which is informal, is called self and mutual help, such as social pressure and peer group. Less formal face to face controls are considered in this model (David and Stasz, 1990). Overall, social control uses the ways of punishment, prevention and rehabilitation in order to solve deviant, threatening and disorder behaviours. In particular, imprisonment is one of the highly used means of social control in form of punishment. There are three factors that strongly influence the development of imprisonment. Firstly, some theories of punishment as control have emerged. In Gramscis theory, the most important things for capitalist society in the revolutionary struggle are the superstructure of ideology, law and politics. Hegemony, which means that one class is convinced to accept other classes moral, political and cultural values, is his central idea. Additionally, Althusser improved the work of Gramsi. He introduced a penal system in the Repressive State Apparatus (RSA), which includes the police, the courts and the prison. However, he claimed that the functions of RSA are not only to coerce, but there are also ideological functions, such as to reproduce personal values. Distinguished from RSA, Althusser established Ideological State Apparatuses (ISA). He put some overlooked parts of the state in this mechanis m, such as educational system, the media and political parties (Cavadino and Dignan, 2007). What is more, Foucalt, who created the phrase carceral archipelago to show western liberal democracies closely in touch with forms of oppression, argued in Discipline and Punish (1977) that: the emergence of the prison does not make a more humanitarian form of punishment, instead it represents an attempt to punish more efficiently and extensively to create a disciplined society (cited in Carrabine et al, 2009, p362). Furthermore, the English historian E.P.Thompson indicated that law, as well as penalty, can be found at every bloody level. However, if the law is unjust, the classs hegemony will benefit nothing from that. (Cavadino and Dignan, 2007). Those sociological theories, particularly Foucaults great confinement that: institution of various kinds came to be adopted as the solution to a wide range of social problems (Cavadino and Dignan, 2007, p194), shows that imprisonment has its social functions. Mathiesen, a Norwegian penologist, suggests that there are five social functions which demonstrate that imprisonment is still the dominant way of punishment. He calls the first function the expurgatory function. Many of people in prisons are homeless, abused and suffering from mental illness as Cavadino and Dignan (2007) researched and therefore regarded as unproductive and disruptive. They are routinely being put into prisons so as to prevent society from various damages. The second function is called the power-draining function. Apart from preventing prisoners from being involved in the normal society, the prisoners are also: denied the opportunity to exercise responsibility (Cavadino and Dignan, 2007, p195). Minimal practical contributions is the function that is considered when the prisons were designed. Thirdly, prisoners easily isolate themselves from society, because of the shame of having been imprisoned. This is called, by Mathiesen, symbolic function. It shows the effect that those prisoners are a smaller risk to society after being released. The fourth function, related to the third one, is called the diverting function. Mathiesen (cited in Cavadino and Dignan, 2007, p195) claims in his book that: socially dangerous acts are increasingly being committed by individuals and classes with power in society. However, the fact is that the heavy-handed of prisons are highly used to the lower working class offenders. Hereby social attention is diverted from more serious social harm committed by the groups in power. For instance, acts of pollution and eco-systems destruction. Finally, Mathiesen identifies the fifth social function as the action function. Because it is the most serious means of social cont rol, prisons play a vital role in reducing the publics fear of crime. However, Cavadino and Dignan (2007, p196) argue that the imprisonment functions that Mathiesen suggests are not that efficient: there is also a heavy price to be paid, not only in terms of resources and human suffering, but also in managing the increasing tensions that are associated with the steady enduring penal crisis. Theories of New Punitiveness Secondly, in recent decades, new punitiveness, which means a general rise in the severity of punishment, has become a notable penal trend around the world. Essentially, the aim of new punitiveness is to make offenders suffer. At present, the imprisonment rate, which is a measure of harshness of punishment, has increased in nearly three fourths of countries all over the world. Undoubtedly, the United States has led this new trend, because the prison population and imprisonment rates in this country are the highest in the world and where numbers of prisoners have quintupled since the early 1970s (Cavadino and Dignan, 2007, P84). Meanwhile, this punitiveness is connected with populist punitiveness whose policies and slogans, for instance, zero tolerance, three strikes and prison works are a far-reaching influence on policy-making, particularly penal policies. Definitely, it represents this penal trend: new punitiveness. (Garland, 2007) New punitiveness is connected with the official aims of using imprisonment that results in increasing use of prisons. Deterrence and retribution to offenders were the primary aims of imprisonment in the nineteenth century. However, during this period, the prisoners were still possible to return back to society and those ideas were treated as official policy. Additionally, although in the 1970s, the rehabilitation ideal collapsed, rehabilitation was reintroduced and became an important aim in penal practices in the late 1990s, especially in the UK Criminal Justice System. The current aims of rehabilitation are not only reforming prisoners characters, but more importantly to prevent them from reoffending (HCHAC, 2004). At present, the UK Prison Service states as its official aims: to reduce the risk of reoffending, hold prisoners securely and provide safety (Cavadino and Dignan, 2007). However, practically, all of the three aims are lamentable. Considering the first aim, Shepherd and W hitings (2006) figures indicate that imprisonment is unsuccessful in preventing reoffending: two-thirds of all prisoners are reconvicted within two years of being released, and for young men aged 18-20, the figure is 74.8% (cited in Cavadino and Dignan, 2007, p193). Reoffending is worse than a decade ago, when according to the Home Office just 70% of offenders under 21 were reconvicted for a crime (Home Office, 1999). Secondly, to hold prisoners securely, does not only mean to prevent their safety, but also to keep them from escaping. Although, currently, the Prison Service and governments are paying more attention to lessen the rates of absconding, the escapes from prisons have become periodic (Cavadino and Dignan, 2007). Therefore, it is hard for the Prison Service to achieve the third aim that is to provide safety. Prisoners escapes will increase anxiety and fear within general public. Cavadino and Dignan (2007, p193) claim that: there isÃâà a very long way to go before it can claim to be providing safe, well-ordered establishments in which prisoners are treated humanly, decently and lawfully. Thirdly, the political economy, particularly the welfare system, plays a vital role in causing different imprisonment rates among various countries and it can revealingly explain the reason of the rise of new punishment. There are three key categories. Firstly, at present, Neo-liberalism, which means free-market capitalism, exists in the US, Britain and Australia. The welfare state, under this ethos that individualism is more important than communitarianism, is minimalist. Cavadino and Dignan (2007, P86) argues that: the economic system creates much material inequality, which results in the social exclusion of many people and communities. Secondly, the welfare benefits in conservative corporatist countries whose collectivism is more important, such as Germany, are more generous than Neo-liberal countries. The citizens in those countries get better protection against unusual market forces and products. However, it is still not equality and it is shown in Cavadino and Dignans (2007, P8 6) book: their welfare states enshrine and perpetuate traditional class, status and economic division between different groups of citizens who are entitled to different levels of welfare benefits. Thirdly, the more equal and generous welfare states are social democratic countries, such as Sweden. Although they share conservative corporatisms communitarian approach, their systems are the most egalitarian ones among those three kinds of countries. Walnsleys (2005) research on imprisonment rates which shows that the rates in all neo-liberal countries are the highest, while the lowest rates are in social democratic countries, definitely confirms this theory. Undoubtedly, the United States is a typical example which shows the rise of the new punitiveness as a neo-liberal country. The quote: overcrowded conditions in our prisons have become a national crisis (cited in Matthews and Francis, 1996, p22) informs that this crisis has extended to almost all federals states and locals communities. Maguire and Pastore (1994) suggested that during 1968 to 1978, the prisoners in federal state prisons increased by over 1000000, from 187914 to 294396. Although many concerns have been took to the crisis, between 1980 to 1990, the number of state and federal inmates had more than doubled to over 7000000, and in 1994 this population surpassed the one million mark (Office of Criminal Justice Service, 1995, p72). There are three factors that contribute to the dramatic increase in prisoner population. Firstly, the increase of inmate population reflects the high rates of crimes (Lynch, 1995). However, in return, the crime rates are not equal to the increment in prison population. According to FBI data the crime rates did not increase sharply in the last few decades. Blumstein (1995, cited in Matthews and Francis, 1996, p30) concluded that: it is very unlikely that the growth in prison population was a consequence of a growing crime rate. Secondly, the US has a long-drawn campaign to get tough with crime. Whatever the elected official is, the politics, from mandatory minimum prison sentences, to restrictions on parole release, to three strikes and you are out law, are aimed at putting more offenders in prison and for a lengthier stay (Skolnick, 1994, cited in Matthews and Francis, 1996, p30). Thirdly, in the 1980s, the war on drugs, which aimed to punish drug offences by using criminal law, contributed to the increase of prison populations. Only 10% of the prison populations were occupied by drug offenders, while this figure had doubled in 1989. Blumstein (1995) conducted a study, which pointed out that: 44% of this increase in prison p opulations between 1986 and 1991 could be attributed to the boom in the number of offenders imprisoned for drug offences (cited in Matthews and Francis, 1996, p31). Furthermore, there are some other solutions that the US has implemented. For instance, creating capacity, which means to build more prisons to house all prisoners; and intermediate punishment, which aims to get tough in the community as a punishment. However, Matthews and Francis (1996) argued the barriers as follows: theories of reducing the crowding crisis remain mainly academic exercises with little prospect of substantively affecting the extent of the crisis, ideas on reducing prison crowding are judged too dangerous because their endorsement would expose elected officials to charges of being soft on crime. (p31-32) à The Effect of Prison on the Family Obviously, imprisonment has lots of bad effects on families. Firstly, those families, whose member is in prison, will lose respect in the community. Clear (2009, p128) cites an experience of a participant in his book: neighborhood residents not only look at the specific offender but also the entire family, and if one has offended, all of a sudden they are not the most respected, even from the church. Secondly, parental imprisonment results in financial problems, especially if the man of the family is in prison. Those families lose a productive member, thus they lose income, because the partners imprisonment will probably influence the employment of the woman, and the ability of a male support the family is higher than the females (Clear, 2009). Thirdly, the most significant influence is on children. Actually, the effects of imprisonment on children start at the arrest of their parent. They are shocked, fearful and confused when witnessing their parents being arrested. As Van Nijantte n (1998) points out: the way the father was removed in handcuffs or with a bag over his head, are sensations the child will never forget (p82). Parental imprisonment has a psychological influence on children. A majority of researches have found that children, whose parents are in prison, are more likely to show the depression, hyperactivity, clinging behaviour, sleep problems, truancy and poor school grades. (Murray, 2005). While, other studies revealed that those children have a higher risk of showing bad behaviour or experience imprisonment (Johnston, 1995). Farrington et al (1996, cited in Codd, 2008. p73) also support this idea that: children who are brought up by parents, who are offenders, particularly if they are imprisonment, have been argued to be more likely to go on to offend. However, parental imprisonment still has benefits for some children. Eddy and Reid (2003), suggest that the quality of positive parenting will rise, because their parents may take more time out on t he street and send them to a caregiver or local care organisations, which will results in less significant problems for those children. The Effect of Prison on the Community Similarly, imprisonment has several effects on the communities. First of all, stigma sometimes will transfer from families to communities. Although some residents say that they do not mind and even celebrate it when the prisoners come back to the community, the stigma, especially if more serious crimes are committed in the community, will inevitably influence the whole community. For example, residents may be reluctant to be out on the street at night in their areas or to take part in activities (Clear, 2009). Secondly, the economic situation of the community is seriously affected by the imprisonment, because of the stigma. There is a fact that residents are concerned more about living surroundings. If there are a number of people with criminal records in the community it can lead to lower property values. Meanwhile, the businesses in such places noted that fewer customers enter their premises. Clear (2009) discusses those two ideas: the areas bad reputation means that large corporat ions do not locate their business in these neighbourhood; and housing prices are diminished because, when residents flee, they sell their houses for whatever they can get, often at a reduced price. This reflects the value of the community (p135). Thirdly, prisoners are always full of hope when returning back to their community. However, they soon feel low self-worth and self-esteem, because the communities stigmatise them. Consequently, they will do nothing to contribute to the communities and feel thats just the way I am, which may very likely lead them to reoffend. As a participants responses in Clears research show (2009, p138): if you treat me more like a human being, I will act more like human being, if you treat me more like an animal, Im going to act more like an animal. Last but not least, even if residents show a welcome to prisoners, those people from prisons actually increase the fear of crime in communities. Another participant in the same study says he is worried about his son when he is working, because of having a former prisoner as a next door neighbour. Other residents express the same fears. They are cited in Clears (2009, p142) book: one resident said that if someone with a criminal records moved in next door to her home, she might do a background check. Another said he was going to watch him'. Overall, those accumulated impacts on the community can be fierce. Conclusion In conclusion, imprisonment plays a vital role as a means of social control. Although in some countries, such as the US, the overcrowded prisons have become a pressing problem that needs to be addressed urgently, because of its valuable social functions and coincidence with official aims, imprisonment is widely used around the world. However, the negative effects on families, especially on children who are economically and mentally greatly affected and suffer when their parents are imprisoned; and communities whose economies and social anxiousness are seriously influenced, should not be neglected. It may negate the development of imprisonment
Monday, August 19, 2019
History of FedEx Essay examples -- Deliver History FedEx Historical Es
History of FedEx How ââ¬Å"Absolutely, Positively Overnight!â⬠Came To Be Mark Twain once said, ââ¬Å"The man with a new idea is a crank until the idea succeedsâ⬠. This phrase could be applied to Fred Smith and Federal Express. From their beginnings in Little Rock, Arkansas in the early 70ââ¬â¢s delivering 186 packages overnight to 25 U.S. cities, to three decades later parlaying itââ¬â¢s $20 billion dollar corporation into no less than five major operation companies. FedEx has become the worldââ¬â¢s leader in global express transportation, providing fast delivery of documents, packages and freight shipments worldwide. As a result, the name ââ¬Å"Fed Exâ⬠is used in much the same manner as name ââ¬Å"Band Aidâ⬠has today. Many use this term generically meaning all forms of overnight or rapid delivery systems. The powerful FedEx brand and the ever-familiar purple, orange and white colored letters are a welcome sight as deadlines near. History of Moving Freight ââ¬â The mail actually saved the future of passenger flight, but ironically outgrew it and needed its own logistical changes. Fledging airmail service started in the U.S in 1918. The Post Office began regular delivery service between New York and Washington D.C., totaling a distance of 218 miles, using four U.S. Army Curtiss Jennyââ¬â¢s in which about 140 pounds of mail could be loaded into the front cockpits. Although before that, Aeromarine Airways flew passengers, airmail, and freight between Key West and Havana in November 1919 (Air Trans 95,105,319). The regular handling of larger packages did not occur until later on in the 1920ââ¬â¢s. In those days, and for obvious reasons, air mail was considered pretty much a ââ¬Å"suicide clubâ⬠due to the lack of proper equipment, established airways and related equipment. Thus, the pioneers of early airmail routes must be credited for their efforts, as they established through their sacrifices, the foundation upon which commercial air transportation was built. The honor of being the first air freight operator would probably have to go to Henry Ford, who at the time owned Ford Air Transport and was just as well known in aviation as in the automobile industry. The first original all-cargo air carriers were Slick Airways, United States Airlines, the Flying Tiger Line, and Air News. All were certified in 1949, but most were gone within a 5-year period (Air Trans 323). Comme... ... air fleet and gives FE the right to place more than 10,000 of its drop boxes in post offices across the country. But this does little to address the Memphis-based carrierââ¬â¢s bigger problems: UPS, which has been winning market share from FE in e-commerce shipments (Internet). The Future What customers and companies are looking for already, is a way to ship packages without going through several steps, and be able to track ââ¬Å"real-timeâ⬠the shipping data. Fed Exââ¬â¢s new data tracking network rolling out soon, should do the trick. The bottom line is that FedEx continues to deliver. They gave birth to the modern air/ground express industry with hard work and ingenuity, and they will continue to lead the way into the future. Work Cited About FedEX. http://www .fedex.com/us/about/express (4/29/01). Holmes, Robert B. Air Mail. New York: Clarkson N. Potter, Inc./Publishers, 1981. Kane, Robert M. Air Transportation. Kendall/Hunt Publishing. Debuque, Iowa, 1999. Sigafoos, Robert A. and Roger R. Easson. Absolutely Positively Overnight. St Lukes Press, Memphis, 1988. Trimble, Vance, and Sam Walton. Overnight Success. Crown Publishers, Inc. New York, 1993.
Sunday, August 18, 2019
Abraham Lincoln Essay -- essays research papers fc
Abraham Lincoln Why I chose to research Abraham Lincolnââ¬â¢s life. Ever since I was a small boy in elementary school, and all throughout my grade school days, there were many great names that were spoken of and taught about. Names such as George Washington, (our first president) John Hancock, John Adams, and Mark Twain were among many others who contributed to the betterment of our great country, the United States of America. Yet there was one name that resounded in my classrooms, and in my ears. That name was Abraham Lincoln. As a child, I had heard of great things this man had done, and wonderful things he had said. Of the many great things said by Abraham Lincoln, I recall most vividly the Gettysburg address, given on November 19, 1863. à à à à à Listening to the words of my teachers and reading from my textbooks about this great man who had done great things, made me curious. I wanted to know in more detail exactly what it was that made this man so revered by teachers, political leaders, students, and everyday people. What was it about Abraham Lincoln that made him who he was? And how did this have an affect on how he ran the country? These are some questions that I have, and throughout this research, I hope to answer them. à à à à à à à à à à Abraham Lincoln was born in Larue County, which is in Kentucky, February 12, 1809 on a Sunday morning. He, as well as most other people in those days, was born in a log cabin that was not necessarily the most well built. The Lincoln cabin, as stated on page 5 in vol. one of The Life of Abraham Lincoln, by William E. Barton, ââ¬Å"was lacking in all modern conveniences and most modern comforts.â⬠Abraham Lincoln was not born into a rich family who had achieved great social and political power, but instead, a common, rather poor family, who was content with what they had. Thomas Lincoln (Abrahamââ¬â¢s father) was a carpenter and a farmer, and he met his wife Nancy through a co-worker. Nancy was the sister of Joseph Hanks, who worked with Thomas Lincoln as a carpenter, and it is believed that through this acquaintance, Thomas and Nancy met, and were married. Nancy and Thomas Lincoln were the parents of Abraham Lincoln, and were both born in Virginia. When Nancy Lincoln got pregnant for the first time, both she and Thomas wanted to have a baby boy, however, their ... ...nd by a very large margin. Lincoln was placed on the Committee of Public Accounts and Expenditures on what was called the Ninth General Assembly. Lincoln made no marked impression on this legislative body. à à à à à In May of 1860, Abraham Lincoln was nominated for the republican presidential candidate. Lincoln was nominated by three hundred and sixty four votes, where only two hundred and thirty-four were required. à à à à à In his presidency, Lincoln achieved many goals, some preconceived, and some not. He was a great man, and a great president, due to his honesty and integrity. The questions that I had about Abraham Lincoln, (What was it about Abraham Lincoln that made him who he was? And how did this have an affect on how he ran the country?) Were more than answered. Lincoln was a man who rose above his circumstances and chose to do the right thing. I think that this unique president draws so many peopleââ¬â¢s attention to himself because of his honesty and integrity. Where have all the presidents run off to who will walk in the footsteps of Abraham Lincoln? Works Cited 1) The life of Abraham Lincoln, by William E. Barton. vol. One and Two.
Terms Defined :: essays papers
Terms Defined Before plummeting into the depth of this paper, several phrases and terms need to be clarified. When discussing computers they should be thought of as ââ¬Å"devices that solve problems by accepting information, performing prescribed operations, and supplying the results obtained.â⬠Computer usage refers to utilizing the piece of technology to solve problems. Another important fact to remember is that computer games are played on the machine for either instruction or entertainment. For the sake of clarity, computer programs and computer games are used interchangeably and deemed as synonymous phrases within this paper. The computer revolution refers to the incorporation of computers into everyday use. Having clear definitions of these phrases will help the reader better comprehend the assertions being presented (ââ¬Å"Ebsco,â⬠2004). Gender Bias in Computer Games and Programs One of the first factors thought to contribute to this growing problem presented above is the fact that computer games and programs are rarely generated with females in mind. The way in which games and programs are designed can be a huge deciding factor in whether the girl will take the time to explore a particular program or not. According to a study sponsored by the much acclaimed American Association of University Women, ââ¬Å"The commission noted that most computer games today are designed by men for men. They often have subject matter of interest to boys, or feature styles of interaction known to be comfortable for boysâ⬠(ââ¬Å"Tech Savvy,â⬠2000, p.29). In her book entitled Does Jane Compute, Roberta Furger (1998) interviewed a ten year old, self-proclaimed conossuier of computers named Rachel. This precocious ten year old has her own web page and likes to make cards and invitations on her very own Macintosh. Sadly, Rachel has experienced first hand the discr epancy experts have been warning about. She too explains how there are very few games for girls when she stated, ââ¬Å"There are only men in a lot of games-and there are not bright colors. Itââ¬â¢s all droopyâ⬠(1998, p.44). Children Now, an organization working for the betterment of children everywhere, recently stated that many computer games popular among boys have been marketed to girls by simply changing one aspect of the gameââ¬â¢s general design or aesthetics. Take for example, Pac-Man. The creators of this game simply put a pink bow on the original creature to try to lure in the female population (ââ¬Å"Girls and Gaming,â⬠2000).
Saturday, August 17, 2019
To Build a Fire
ââ¬Å"To Build a Fireâ⬠Theme Analysis Behold, how great a matter a little fire kindleth! -New Testament: James 3:5 ââ¬Å"To Build a Fireâ⬠is a short story written by Jack London. This story was originally published in 1902, with the famous version being published in 1908. When London was a student at the University of California, Berkeley, he had discovered the name of his biological father and wrote to him in an attempt to establish a relationship. His letter was returned with the man denying paternity. This denial negatively overwhelmed London, resulting in him dropping out of college and sailing to the Yukon in Canada to pursue the gold rush.This location had a profound impact on London and has resulted in his naturalist writing type. The Yukon has been the setting in many of his stories including ââ¬Å"To Build a Fire. â⬠This short story details a logger new to the Yukon Territory and his trek down a trail with his wolf dog. While walking down the trail, the man breaks through the ice and plunges shin deep into the frigid water. Knowing frostbite would set in, he is forced to take up camp and start a fire to dry off and warm up. His first fire is extinguished and he is unable to light a new one. Frostbite and hypothermia set in and the man eventually succumbs to his fate. Also read The Story of an Eyewitness Essay AnalysisThis short story showcases the theme of Man vs. Nature. London is able to support this theme with his use of setting, foreshadowing, and irony. This theme is confirmed by the published analysis ââ¬Å"To Build a Fireâ⬠written by James Welsh, which was published in 2004. Londonââ¬â¢s detailed use of setting has the greatest influence in showcasing the theme of Man vs. Nature. This story takes place in the Yukon Territory of Canada where ââ¬Å"There was no sun nor hint of sun, though there was not a cloud in the skyâ⬠(London 127). His initial meticulous detailed setting of the trail and weather virtually puts the reader in the boots of the logger. He spat again. And again, in the air, before it could fall to the snow, the spittle crackledâ⬠(London 128). This explanation shows the extreme level of coldness that the man is being challenged with. This detail gives readers the ability to compare the cold that they are used to with the cold that he is facing. This adds to the impending fears that the reader feels, even though the man shrugs it off. This statement also details the isolation the man is facing when he mentions, ââ¬Å"A foot of snow had fallen since the last sled had passed overâ⬠(London 128). This isolation sets the one man vs. ll of nature impending battle. The trail is also later described to include more of the possible dangers the man is against such as, ââ¬Å"He knows the area and realizes the danger of springs hidden beneath the snow, covered only by a thin sheet of iceâ⬠(Welsh). This adds more dangers to an already dangerous hike. Londonââ¬â¢s detailed description of the setting showcases the merciless features of nature and places the environment as the antagonist against our inexperienced logger. When London isolates the character and combines the violent characteristics of the setting, he emphasizes the theme of Man vs. Nature.Foreshadowing is the literary device used to suggest certain plot events that might happen in the future. London is able to use foreshadowing to enlighten the readers into the possible traps the logger is facing all while building the suspense of the story. The human condition is explained by the logger as the, ââ¬Å"frailty as a creature of temperature, and upon manââ¬â¢s frailty in general, able to only to live within certain narrow limits of heat and coldâ⬠(London 128). This statement exposes the weakness of humans and gives the readers a glimpse of how the logger might face hardship due to weakness to temperature.Later in the story the dogââ¬â¢s manner changes and he develops a ââ¬Å"menacing apprehension that subdued it and made it slink along at the manââ¬â¢s heelsâ⬠¦ it wanted fire, or else to burrow under the snowâ⬠(London 129). This gives readers the feeling that the dog knows that the weather is too terrible to travel and an impending danger is present. Traveling down the tr ail, the dog breaks through the ice and is forced to lick the ice away to prevent frostbite foreshadowing that the man would be going through the same trials. Before the coming of winter, the old-timer from Sulpher Creek had warned him that one should always travel in winter with a partner and that one should never attempt to travel alone in temperatures colder than fifty degrees below zero. In his ignorance, the tenderfoot had laughed at the old-timerââ¬â¢s adviceâ⬠(Welsh). This builds on the anticipation that the advice may become used later in the story. ââ¬Å"Every time he comes on a suspected trap, he forces the dog to go ahead to see if it is safeâ⬠(Welsh). By putting the dog into harms way, it gives a sense of impending karma.Throughout the beginning and middle of the story, London uses foreshadowing to build the suspense and give readers a look at aspects of nature that may come to challenge the protagonist. Throughout the story, London uses irony to demonstr ate Man vs. Nature all while offering some dark comedy. When the man first decides to take a break and eat lunch he stops and builds his first successful fire. ââ¬Å"The fire has restored his confidence, but the dog wants to stay by the warmth and safety of the fireâ⬠(Welsh). Looking back, one may see the irony of the knowledge level of the dog and understand how the man should have stayed with his fire.The man also shrugs off frostbite earlier in the story as ââ¬Å"a bit painful, but never seriousâ⬠(London 129). Readers are more aware than the traveler that frostbite can kill and the traveler eventually finds this out. Throughout the story the man was extremely careful and he eventually breaks through the ice ââ¬Å"At a place where there were no signs, where the soft, unbroken snow seemed to advertise solidity beneathâ⬠(London 131). The man then has to build a fire to dry his feet so frostbite doesnââ¬â¢t set in. He decides to build the fire underneath a tre e so that he has fuel readily available and protection for the fire.This idea backfires and snow from atop the tree falls and extinguishes the fire. When a reader examines the mannerisms of the dog, he or she may see that he has a better understanding of the weather and environment. He wants to set up camp instead of travel. ââ¬Å"The dog did not want to go. It hung back until the man shoved it forwardâ⬠(London 130). The irony being the dog is smarter than the man. London uses these examples of irony to better describe the merciless personality of the setting and add dark humor in an otherwise depressing story. An ironic strain that runs throughout the story is the tenderfootââ¬â¢s sense of superiority and contempt for the old trapper on Sulphur Creek. The irony is dramatic in that the reader soon realizes that the old man was right, a realization that escapes the tenderfoot until the very end of the storyâ⬠(Welsh). Jack Londonââ¬â¢s ââ¬Å"To Build a Fireâ⬠is an image provoking heart-pounding story and his use of setting, irony and foreshadowing perfectly exemplifies the Man vs. Nature theme. This theme has been also noted in many published literary works such as James Welshââ¬â¢s analysis.Londonââ¬â¢s level of detail and ability to place you in the situation makes this story one that will remain a classic for years to come. WORKS CITED Kennedy, X. J. , and Dana Gioia. ââ¬Å"To Build a Fire. â⬠Literature: An Introduction to Fiction, Poetry, Drama, and Writing. Twelfth ed. Boston: Pearson, 2013. 127-37. Print. Welsh, James M. ââ¬Å"To Build a Fire. â⬠Masterplots II: Short Story Series, Revised Edition. Salem Press, 2004. 1-3. Print. http://ezproxy. cfcc. edu/login? url=http://search. ebscohost. com. ezproxy. cfcc. edu/login. aspx? direct=true&db=lkh&AN=103331MSS23119240001174&site=lrc-plus
Friday, August 16, 2019
Theory of Data Communication
Btec National Unit 8 ââ¬â 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. 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 th e 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 guide (entitled ââ¬ËError detection and correctionââ¬â¢) 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 W rite section 3 (entitled ââ¬ËCommunication protocolsââ¬â¢), 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 ââ¬Ëgeneralââ¬â¢ communication devices, network components (servers, workstations, NICs, etc. and interconnection devices (hubs, routers, switches, etc. ). For this task (covering P 1) 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 donââ¬â¢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 importan t 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 OS I Seven Layer Model9 TCP/IP Four Layer Model10 Critical Comparison10 The Session Layer (OSI)10 The Presentation Layer (OSI)10 The Application Layer (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, etcâ⬠¦ Theyââ¬â¢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 ââ¬ËChapter 1ââ¬â¢ of the online course. Chapter 1 is entitled ââ¬ËThe Theory of Data Communicationsââ¬â¢. The chapter will be subdivided into a number of sections. And Iââ¬â¢ve decided that t he 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: â⬠¢ A Bluetooth dongle in a PC, which is used to synchronise a mobile phone or PDA. â⬠¢ 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 stat ions 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 sayâ⬠¦ 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 | |Div ide 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 ââ¬â This is the 2x 1 0 0 1 0 1 ââ¬â This is the binary for 37 32 16 8 4 2 1 ââ¬â 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 r ight 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 be tween the highest and lowest frequencies contained in the signal. 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) Evenà ââ¬â 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 ââ¬Ë0ââ¬â¢ or ââ¬Ë1ââ¬â¢ depends on the combination of the other eight bits. If there is an uneven number of ââ¬Ë1ââ¬â¢s then the parity bit will be a ââ¬Ë1ââ¬â¢, if there is an even number of ââ¬Ë1ââ¬â¢s the parity bit will be a ââ¬Ë0ââ¬â¢. There should alway s be an even number of ââ¬Ë1ââ¬â¢s in the data. For example: 1011001 Parity bit = 0 Oddà ââ¬â This works the same way as even parity checking, however, instead of the ââ¬Ë1ââ¬â¢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 ans wer 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 isnââ¬â¢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: â⬠¢ Link Layer â⬠¢ Internet Layer â⬠¢ Transport Layer â⬠¢ 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 Interconnection intelligence. Basically, network architecture has been divided into seven layers. From top to bottom, these layers are: â⬠¢ Application â⬠¢ Presentation â⬠¢ Session â⬠¢ Transport â⬠¢ Network â⬠¢ Data Link â⬠¢ Physical This is known as the OSI Seven Layer Model. Each layer is characterized by their formation. These provid e 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 donââ¬â¢t communicate across to their ââ¬Ëdoppelgangerââ¬â¢ layer on the other computer. If they wish to commun icate, they have to go through all the other layers that stand between them and their ââ¬Ëdoppelgangerââ¬â¢ layer. This table to the right is basically explaining what each layerââ¬â¢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 devel oped 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 ââ¬â FTAM, VT, MHS, DS, CMIP TCP/IP ââ¬â 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 destination. 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 TC P/IP, the Transport layer introduces two transport protocols, TCP and UDP. TCP implements reliable transportation of data whereas UDP doesnââ¬â¢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. OSIââ¬â¢s CLNP is practically identical to the Internetââ¬â¢s IP. Both are best-effort-delivery protocols. They are virtuall y identical but the one major difference that sets them apart is that CLNP supports variable length addresses whereas IP supports fixed, 32-bit addresses.
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