Thursday, November 28, 2019
Once more to the lake free essay sample
After reading all of the descriptive essays I found that I liked the ââ¬Å"Once More to the Lake ââ¬Å"By E. B White. His essay is easily readable and his diction is simplistic. His descriptions and imagery include Whites past and present memories. The narration is first person through the eyes and voice of the author. On the other hand I feel that his theme is more elusive. This retrospection allows the reader to slip behind the wall of time and memories to watch a son and father enjoy the America dream a vacation, reflecting on childhood memories the author recalls a trip back to the place where he had spent summer vacations with his parents and siblings. This event which seemed very enjoyable challenges him to look back at his relationship with his own father now that he has returned he realizes that some things vary and other things a person cannot stop from changing he and his son stay in the same cabin near the same dock on the same lake as he had done in his childhood. We will write a custom essay sample on Once more to the lake or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Over and over again the author comments that there has been no years gone by. I believe he felt that he had traveled back in time and though several decades had passed, everything was the same. I think the audience he is trying to appeal is parents specifically fathers. Because the story is based on his relationship with his father comparing it with his relationship now with his son. Just more personally I think this essay is also able to appeal anybody that has thought of what your parents did with their parents. After reading all of the narrative essays I found that I enjoyed How to Say Nothing in 500 Words by Paul McHenry Roberts. I feel that it is an article discussing the various points of Freshman College writing that makes for poor and drab papers his main points focus around writing from the less usual side to add interest using colorful and colorless language appropriately for more meaning and of course getting rid of the added padding that make otherwise good papers excessively poor. The essay he wrote mentions that all of the topics he is discussing is usual freshman college level writing yet he also makes sure to point out that it does not necessarily have to stay that way. He provides a large number of examples under each header giving nice concrete facts in his writing to help perpetuate understanding. I feel that the intended audience was for young writers or students.
Sunday, November 24, 2019
Essay on Effects of Reading and Comprehension
Essay on Effects of Reading and Comprehension Essay on Effects of Reading and Comprehension My ability to write this paper and the readerââ¬â¢s ability to comprehend what is written are capabilities vastly under-appreciated. Imagine a comprehension state of a child between the ages of four to six, now think of the knowledge capacity of an adult between the age of eighteen to twenty. The leap in reading and comprehension skills is almost too vast to deem possible. Since the beginning of time it has been vital to communicate, without comprehension of others and interaction with like species we would be an inevitably solitary and archaic race. The building blocks of modern intelligence begin with reading and the ability to comprehend that reading. Just like with a child, who after conquering fundamental physical success, must move on to the building of the brain in order to be a productive individual capable of basic communication. Intelligence is built off of the ability to achieve what is so often underappreciated: the ability to read, write and comprehend. There are many processes to teaching a child to read, however one depiction of the process is given in four phases: the pre-alphabetic phase, partial alphabetic phase, full alphabetic phase, and consolidated alphabetic phase. (Bainbridge, 2011) These particular stages are already dependent on a child have phonemic awareness, where the child is aware that speech is made up of individual sounds. (Bainbridge, 2011) All individuals included in literate society have more or less partaken in these stages of learning and have accomplished the awareness levels necessary for the stages. It is very likely, however, that these processes through which our brains have undergone are not consciously remembered. As children most of society perhaps remembers beginning to understand our favorite storybooks, but the actual duration of which we struggled to grasp the concept of sound and writing is no longer with us. Therefore it would seem that this leap in cognitive capability came easily, which is ha rdly the case. The modern world is lucky to have such orchestrated processes and stages to follow for their models of linguistic success. Once upon a time, a time not so long ago, such studies did not exist. The origin of language is a topic that has hardly commenced to a conclusion, however new studies by biologist Quentin D. Atkinson declare that the origin of language may date back up to 10,000 years ago in Southwest Africa. (Wade, 2011) Atkinson has threatened the many theories that language origin did not date back further than 9,000 years ago. (Wade, 2011) Atkinson, who is an expert at applying mathematical equations to linguistics, uses phenomes rather than words to determine patterns in languages of the world. (Wade, 2011) Because an African click language Atkinson discovered has over 500 phenomes, it has been declared the first language. Wade, 2011) With regard to the controversy of language origin, it is something to be said that there are so many theories. No one can argue that language is not complex and valuable, or that something can be said for the extensive building that has commenced since original communication began. As language and communication relate to knowledge and intelligence, there is much to be said, but all concerning the question: How can multi-level intelligence and large knowledge recollection occur without fundamental cognitive development? The
Thursday, November 21, 2019
World War I and II Essay Example | Topics and Well Written Essays - 2000 words
World War I and II - Essay Example The First World War can be attributed to change in distribution of power in the international system and the many alliances which had been formed prior to the war to protect interests of different states (Dickson, 2011). This enabled all the European states to be drawn into the war making it the greatest war ever fought. However, there are many other causes which led and intensified the war. These include; arms race, nationalism, imperialism and militarism among others. The great powers involved in the war included Britain, Italy, France, Germany, Russia, and the Austria-Hungary Empire. The Second World War on the other hand, was as a result of dissatisfaction with the conditions of the peace treaty signed after the First World War and struggle for power by states. However, there are other important factors that contributed to the war such as the great depression of 1930s, the rise of totalitarianism, policy of appeasement, failure of the League of Nations as well as ideologies such as anti-communism, fascism, nationalism, and militarism among others (Dickson, 2011).... eaders followed social Darwinist ideas which view war as ââ¬Å"the only powerful force of nature through which stronger nations prevail over the weaker ones in an international struggle of the fittest.â⬠The international system culture was also that of tolerance to war; disputes between nations were better settled through war rather than negotiation and this created a good environment for nations to wage war against each other in order to maintain or gain power over others. Dickson (2007) argues that the culture of tolerance enabled European powers to assert their power and influence. This is what led Germany to support Austria-Hungary in its quest for war against Serbia after it failed to honour an ultimatum issued by Austria-Hungary demanding justice. Austria-Hungary had severed relations with Serbia as it had a lot of influence on the Balkans hence had long planned to wage war against Serbia. The war was supposed to be small scale but due to the alliance system, the war esc alated to a great magnitude. The alliance system began with Bismarckââ¬â¢s desire to unify Germany with the confederate states hence the war with Austria in the north and France in the south. The two were defeated by Prussia and the confederate states united to form the German empire. The loss of Alsace and Lorraine to Prussia left France yearning for revenge against Germany and was just waiting for an opportunity to attack. Germanyââ¬â¢s desire to become a world power led it into acquiring more states and hence needed protection against the other powers. It thus started forming alliances with other powers so as to guard against any attacks from France or Russia. Germany formed an alliance with Austria-Hungary and Russia but Russia withdrew later hence the dual alliance to aid each other in case of
Wednesday, November 20, 2019
Strategic Marketing & Planning Apple Case Study Essay
Strategic Marketing & Planning Apple Case Study - Essay Example A MOStek 6502 processor was used rather than Intel 8080 processor being used by competitors and TV was used for display. Additionally, it was sold at a lower price and in a demonstration held to showcase Apple 1, 25 units were ordered. More computers were ordered and by 1977, the companyââ¬â¢s sales totaled US$774,000 (Di Muro, 2010, p. 2). The computer company has been introducing inventions over time which have seen it position it well to compete with other computer manufacturers such as Dell and Hewlett-Packard. It also competes with Sony, Microsoft, and Nokia. Apple Inc. hardly develops the new type of product but is mostly an expert in refining products developed by other manufacturers (Wooten, 2010, p.2). Presently, Apple Inc. is valued at about $170 billion and this financial performance is not the only indicator of its impressive performance. Apple enjoys a 9 percent market share of the computer market, 73 percent of MP3 player US market and 11% of the global smartphone market. Wooten (2010, p.2) reckons that Apple has been already to win awards as the best company in marketing, innovation, and marketing. This paper will be structured in two sections analyzing strategic marketing and planning adopted by the company. The first section will explore the purpose of the organization and the way such purpose has been developed as a product of the expectations of different stakeholders. Additionally, the paper will discuss strategies used by the organization in adding value and lastly, it will discuss the main issues faced by the company. The operations of Apple Inc. are of interest to many different stakeholders in the industries that it conducts business in. The main stakeholders include company customers buying different products, employees, competitors, shareholders, company managers, and employees.
Monday, November 18, 2019
See Attachment Essay Example | Topics and Well Written Essays - 1750 words
See Attachment - Essay Example The author has derived solutions from various students in different media such as Facebook and emails. The students talk about their experiences and therefore they can give definite answers about the topic. The most significant convection in the particular text is the mechanic, usage, and the sentence formation. First the author uses quotation marks to highlight the responses are given concerning a particular topic. The author does this to show that the ideas are not his. This helps the reader to understand the topic from first personââ¬â¢s point of view (Mohan 2015). The use of the quotation marks also shows that the writer has followed the formal way of writing whereby it requires one to quote other peopleââ¬â¢s ideas. The writer could also have used commas to ensure that the reader does not strain while reading. The author has also used commas in complex sentences. The author has also used the first person tone in some of the answers. For instance, in the case whereby in one of the responses the student talks about how he/she used all their savings during the first weeks in school. To establish her credibility, the author uses other peopleââ¬â¢s arguments. In this case, the writer ensures that the readers get the facts from first personââ¬â¢s experiences. To achieve this, the author derives the answers from various social media such as Facebook and emails. While reading the text one also realizes that the answers are based on first personââ¬â¢s experiences thus giving the text the credibility it deserves. To emphasize on the reliability of the text the author has also ensured that she includes where the fact is from. The author does this by acknowledging the contributor and the place where the answer was posted. In formal writing, it is advisable to ensure that one cites any idea that it is not thereââ¬â¢s. The author also uses logos appeal whereby she uses one personââ¬â¢s experience and then generalize it. In
Friday, November 15, 2019
Diels-Alder Reactions Experiment
Diels-Alder Reactions Experiment Abstract A Diels Alder reaction was done during this experiment between anthracene and maleic anhydride via to yield 9, 10-dihydroanthracene-9, 10-ÃŽà ±, ÃŽà ²-succinic anhydride. Anthracene was the diene and maleic anhydride was the dienophile. Following recrystallization of the product using xylene and vacuum filtration, a percent yield of 39.9% was calculated for the recrystallized product that was collected. The yield may have been low due to several of the crystals being stuck to flask and not going into the funnel, and there may have been other sources of error. The percent recovery from recrystallization was 56%. The melting point of the recrystallized product was 260 264à °C, while the literature melting point of 262 264à °C. Comparing these values shows that the product was indeed and that recrystallization yielded a purer product. Upon examination of an infrared spectrum of the product and of anthracene and maleic anhydride spectra, the data showed that the product spectru m had similarities with both spectrums for anthracene and the maleic anhydride. This indicated that 9, 10-dihydroanthracene-9, 10-ÃŽà ±, ÃŽà ²-succinic anhydride was a product of both anthracene and maleic anhydride, and thus that the experiment was successful. Figure 1: Reaction scheme of 9,10 dihydroanthracene-9, 10- ÃŽà ±, ß-succinic anhydride Introduction The 1950, Otto Paul Hermann Diels and Kurt Alder were awarded Nobel Prize in chemistry for their work on the discovery and development of [4+2] cycloaddition reactions. Diels-Alder reactions are used to synthesize new carbon-carbon bonds, more commonly they form six-membered cyclic compounds. The Diels-Alder reaction is categorized as a pericyclic reaction, which involves the overlap of spatial orbitals as well as the hybridization and delocalization of the molecules.1 The Diels-Alder reaction is a member of a class of reactions called cycloadditions, which are under pericyclic reactions. Usually, the reaction involves three à â⠬ bonds, two from the diene and one from the dienophile in the reaction to form a six-membered ring.Since this reaction involves four à â⠬ electrons in the diene and two à â⠬ electrons from the dienophile, it is sometimes referred to as a 4à â⠬ + 2à â⠬ cycloaddition. Various chiral auxiliaries and catalysts for asymmetric Die ls-Alder chemistry have been developed that allow the cycloaddition to proceed with very high levels of selectivity.3 The use of chiral Lewis acid catalysts and high pressure to enhance the selectivity and rate of these [4à â⠬ + 2à â⠬]-cycloadditions have further extended the scope of this remarkable reaction.1,2 Diels-Alder reactions are normally favored by electron donating groups on the diene and electron withdrawing groups on the dienophile. The diene must be able to achieve a s-cis conformation to generate the cis double bond in the cyclohexene product.3 Acyclic dienes may rotate around a single bond, but dienes locked in the s-trans conformation do not react.3 The purpose of this experiment is to yield 9,10-dihydroanthracene-9,10-ÃŽà ±, ÃŽà ²-succinic anhydride via a Diels Alder reaction between anthracene and maleic anhydride, as shown in figure 1. Anthracene acts as the diene and maleic anhydride functions as the dienophile. Xylene is used as a high boili ng temperature solvent so that the reaction will proceed quickly. A key characteristic of these reactions is their stereospecificity.3 Based on the interaction between a cyclic diene and a dienophile, different stereoisomeric compounds are formed. Stereochemistry represents a major component of the Diels-Alder reaction.2 Due to the interaction and arrangement between the conjugated diene and dienophile, an endo and exo product could be formed, which can characterize the reaction as stereo- and/or regioselective. Experimental Instruments used: The instruments that were used were the Thomas Hoover Melting, and a Nicolet IR 100 FT-IR were used in this experiment. Procedure and Observations: A reflux apparatus was assembled. Xylene (6 mL), anthracene (0.5 g), and maleic anhydride (0.25 g) were added to a round bottom flask (25 mL). The solution turned a yellow color when the reactants were added together. The reflux was then started, and once it began to boil, it was boiled for 30 minutes. A watch glass was weighed (35.55 g), which the product would later be transferred to. After reflux, the solution was cooled to room temperature, and then xylene (6 mL) was added to a test tube and laced into an ice bath. The solution appeared to be a golden yellow color after the reflux. Next, xylene (15 mL) was added to a beaker (50 mL), and then a vacuum apparatus was assembled. The solution was placed chilled for 5 minutes, and it became cloudy and crystals began to form. The solution was filtered through a Buchner funnel on the vacuum filtration. After the vacuum filtration, the crude product were light yellowish-brown crystals. Xylene (15 mL) was boiled , and was then added to the crude product, just enough to cover it, and was heated. The crystals began to dissolve the hot xylene was added, and as it dissolved the color became lighter and clearer. Once dissolved, the solution was then placed into an ice bath, after being cooled to room temperature. It was then put through the vacuum filtration; the recrystallized product was allowed to dry, and then weighed (0.28 g). Finally, the product was analyzed using IR and the melting point apparatus. References C. Oliver Kappe, S. Shaun Murphree, Albert Padwa, Synthetic applications of furan Diels-Alder chemistry, Tetrahedron, Volume 53, Issue 42, 1997, Pages 14179-14233, ISSN 0040-4020. Wade, L.G., Jr. The Diels-Alder Reaction of Anthracene and Maleic Anhydride (1998). Simek, Jan William., and L. G. Wade. Solutions Manual Organic Chemistry, Eighth Edition L.G. Wade, Jr. Boston: Pearson, Boston, 2013. Print.
Wednesday, November 13, 2019
Hydrogen Essays -- essays research papers
Since the beginning of the scientific revolution in the early nineties the mankind looks for an energy source that is clean and renewable; solution of this problem would be probably the most common thing in our life - WATER. Water consists of two chemical elements, hydrogen and oxygen. Each molecule of water consists of two hydrogen (H2) atoms and one oxygen (O) atom. Chemical binding between these three atoms is very stable and strong. Therefore, the reaction of hydrogen and oxygen is under normal circumstances very intense and generates a lot of energy. 2H2 + O2 Ã ® 2H2O + energy Both, hydrogen and oxygen are gases at normal temperatures and pressures and the product of this reaction is pure water, usually in its gaseous form - steam. Now it may look like hydrogen is the ideal power source that mankind is ever since looking for. More than 70 % of the Earth surface is covered by water, therefore hydrogen is renewable and unlimited. Reaction of hydrogen with oxygen generates a lot of energy and it does not have any negative output, only water. But, the respectable power hidden in water is known for more than 200 hundred years and as long scientists are trying to find a way to extract this energy, rather how to split the water molecules into hydrogen and oxygen. Hydrogen can be used to power cars, rail engines, airplanes, to produce electricity and heat. But, although the technical breakthrough in 19th and 20th century brought hydrogen into experimental use in many applications, there are still many problems to deal with. There sure is a lot of misinformation about hydrogen gone to public, so here are the basic facts about hydrogen as a power source according to the Nuts & Volts Magazine. Hydrogen on earth is not a fuel. It is only an energy carrier. Following the definition of the word fuel, fuel is a substance that is capable of delivering new energy when burning or other chemical reaction occurs. On the other hand energy carrier is a substance that is only able to move previously acquired energy from one place to another. To be accurate, water molecule is energetically very advantageous for both oxygen and hydrogen atoms and needs much energy to disintegrate it again into hydrogen and oxygen atoms, or better H2 and O2 molecules, therefore H2 and O... ...national strength of all the countries that do not have any important petroleum resources and every country could be self- sufficient with hydrogen. For example U. S. trade balance sheets show that oil imports drain 1 billion dollars from the U. S. economy every week. Important is also the "clean transport effect", thanks to an engine that does not produces any carbon dioxide or other environmentally dangerous emissions. Hydrogen could be considered to be more safe than gasoline, if safety prescriptions are not violated, in case of an accident hydrogen would quickly evaporate and ascend in the atmosphere, while gasoline would stay spilled on the ground. Hydrogen caries much more energy than gasoline, is more engine saving and also the fuel cell technology promises further development and increasing reliability of hydrogen powered cars. Following United States Department of Energy we can expect regular hydrogen-powered traffic in 20 maybe 30 years. Although, until now no hydrogen-powered cars are in production and hydrogen-powered engine is only under development hydrogen stays the main alternative fuel of the future. Hydrogen Essays -- essays research papers Since the beginning of the scientific revolution in the early nineties the mankind looks for an energy source that is clean and renewable; solution of this problem would be probably the most common thing in our life - WATER. Water consists of two chemical elements, hydrogen and oxygen. Each molecule of water consists of two hydrogen (H2) atoms and one oxygen (O) atom. Chemical binding between these three atoms is very stable and strong. Therefore, the reaction of hydrogen and oxygen is under normal circumstances very intense and generates a lot of energy. 2H2 + O2 Ã ® 2H2O + energy Both, hydrogen and oxygen are gases at normal temperatures and pressures and the product of this reaction is pure water, usually in its gaseous form - steam. Now it may look like hydrogen is the ideal power source that mankind is ever since looking for. More than 70 % of the Earth surface is covered by water, therefore hydrogen is renewable and unlimited. Reaction of hydrogen with oxygen generates a lot of energy and it does not have any negative output, only water. But, the respectable power hidden in water is known for more than 200 hundred years and as long scientists are trying to find a way to extract this energy, rather how to split the water molecules into hydrogen and oxygen. Hydrogen can be used to power cars, rail engines, airplanes, to produce electricity and heat. But, although the technical breakthrough in 19th and 20th century brought hydrogen into experimental use in many applications, there are still many problems to deal with. There sure is a lot of misinformation about hydrogen gone to public, so here are the basic facts about hydrogen as a power source according to the Nuts & Volts Magazine. Hydrogen on earth is not a fuel. It is only an energy carrier. Following the definition of the word fuel, fuel is a substance that is capable of delivering new energy when burning or other chemical reaction occurs. On the other hand energy carrier is a substance that is only able to move previously acquired energy from one place to another. To be accurate, water molecule is energetically very advantageous for both oxygen and hydrogen atoms and needs much energy to disintegrate it again into hydrogen and oxygen atoms, or better H2 and O2 molecules, therefore H2 and O... ...national strength of all the countries that do not have any important petroleum resources and every country could be self- sufficient with hydrogen. For example U. S. trade balance sheets show that oil imports drain 1 billion dollars from the U. S. economy every week. Important is also the "clean transport effect", thanks to an engine that does not produces any carbon dioxide or other environmentally dangerous emissions. Hydrogen could be considered to be more safe than gasoline, if safety prescriptions are not violated, in case of an accident hydrogen would quickly evaporate and ascend in the atmosphere, while gasoline would stay spilled on the ground. Hydrogen caries much more energy than gasoline, is more engine saving and also the fuel cell technology promises further development and increasing reliability of hydrogen powered cars. Following United States Department of Energy we can expect regular hydrogen-powered traffic in 20 maybe 30 years. Although, until now no hydrogen-powered cars are in production and hydrogen-powered engine is only under development hydrogen stays the main alternative fuel of the future.
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