Monday, September 30, 2019

Political Ideology

Chapter#4-Poetical Culture and Ideology In the textbook, American Political Culture Is described as the extensive communal pollens, standards, and morals citizens have In correlation with the government, as well as in relation with each other. One of the contributing factors that make the culture that way is suffrage, which is the right to vote. For example, our thoughts in suffrage went from the belief that white men who own property are allowed to vote to all citizens who are adults, besides criminals in some cases, have that right.Another season for this would be deliberation, which is the procedure where administrators or people gather to converse and contemplate public Issues, along with social capital, which Is democratic and municipal series of debating, agreement, and regard for contrast, which derives from involvement in optional groups. An example that represents these overlapping ideas is political campaigning because of their extensive use in internet that allows people t o interact with each other on their thoughts.Our shared values include natural rights (born with moral rights), liberty sovereignty), equality (providing fair opportunities to all, no discrimination), Individualism (freedom of action for individuals over group authority), respect for the common person (does not have to be superior with money In order to be respected; common people can be successful: makes economy thrive), democratic consensus (we all come to a common line), and majority rule/popular sovereignty (allowing people to decide who can go forward on).These can all relate to political culture, because these are what we believe in as a nation to be Just, and these beliefs that we hare with others and the government is political culture. The most Important aspects are equality, and respect for the common person, because without these two attributes, our nation would not provide equal opportunities to everyone who are not considered to be superior above all else because of the lacking amount of money they have.Equality and respect for the common person helps to make our democracy prosper. The American Dream is defined as â€Å"the widespread belief that the United States is a land of opportunity and that individual Initiate and hard work can bring economic success†(Government by the People 112).In terms of work, success, and capitalism, these can be shown through the ownership of one's private property, availability/people who work hard that get economic rewards (free market system gives everyone equal opportunities and freedom depends on capitalism which helps grow our economy), wealthy people who fund campaigning projects, and wealthy people who fund money to try and influence elections or public policy (such as donating money to organizations to prove their support for that particular topic). Verbalism- Liberalism alludes to the belief that the government can affect fairness and equality of option. Examples of this would be shown through their support on equal access to health care, same-sex marriage, abortion, other forms of individual choices, more environmental protection, education for all citizens, protection for workers' health and safety, affirmative action programs, and tax rates that rise with a person's income. Menservants- Conservatism touches upon the belief that limited government guarantees order, competitive markets, and ones' own personal equines opinions, the main task of the government should be to protect the country from foreign invaders, support economic growth by promoting competitive markets, and free fair trade, encouraging family values, rejecting Judicial laws that allow abortion, same-sex marriage and affirmative action programs. Socialism- Socialism is an economic and governmental practice that depends on public ownership involving production and exchange.Various examples of this would be represented in wanting a immensely expanded role in nationalizing industries, taxing the wealthy more than rower and middle class men, instituting a public Jobs program and cutting defense spending. Environmentalism- Environmentalism is a supposition that looks at environment instead of genes/heredity as the significant element in the growth and particularly the cultural and cognitive development of a group or individual.Examples of this would be viewed through dealing with issues regarding global warming, overpopulation, and genetic engineering. Libertarianism- Libertarianism is the ethics that fosters individual liberty and promotes minimal government, advocating a free market economy, a nonintervention's foreign policy, and a lack of regulation in moral, economic, and social life.Examples of this include favoring major cuts in government spending and a termination to the Federal Bureau of Investigation, the Central Intelligence Agency, the Internal Revenue Service, and the most regulatory commissions, opposing all government regulation (mandatory seat- belt and helmet laws), because t hey believe the attitude â€Å"live and let live† and thinks that an undistorted free market will benefit individuals. I would describe the American people in terms of their political ideology as mostly well balanced, even though the majority of the groups are conservatives, according to figures 4-2, 4-3, and 4-4.My reason for this is because in all figures, they showed a significant amount of conservatives/conservative related opinions that outnumbered the moderate and liberal groups. In figure 4-2, 77% of people thinks that â€Å"there is too much power concentrated in the hands of a few big companies† (116). This issue is mostly interpreted by conservatives. Also, in figure 4-3, once I added up the totals of the sex, race, age, religion, education, and party columns for each of the 4 groups, conservatives won the majority out of the other 3 groups.In figure 4-4, it showed results that there was a slight increase of conservatives in 2008 (most recent year noted), and a steady decrease for other groups as well, including liberals, and moderates, whereas the don't know/have not thought about it group has increased very slightly. Conclusions that I can reach about the ideology of people of the United States are the facts that ideology overtime shown in figure 4-2, is well balanced for all of the conservatives, liberals, don't know/have not thought about it group, and moderates.Also, there has been more of an increase shown in moderate/don't know/ haven't thought about it group, as well as conservatives only. In 4-2, the graph shows how the don't know/haven't thought about it group has increased compared to all else, besides conservatives. In figure 4-3, it also shows similar results, representing that there has been an increase of moderates/don't know/have not thought about it rope (47%), there are more conservatives (17%)/slightly conservative (12%) than liberals liberal (3%).I think that Americans are mostly a part of the moderate/don't know/hav en't thought about it group, because there has been rising solution than the other groups'. This can lead to an indecisiveness for all people who have been passionate in the past with their former group, because they may have disappointed them with agreeing in something/many other things that the person would not agree with, and then not being able to agree with other ideologies as well.

Sunday, September 29, 2019

Han China/Imperial Rome CCOT

Han China was one of the longest dynasties in Chinese history, however, the Imperial Roman empire lasted even longer. Han China and Imperial Rome share many similarities as well as many differences. Although Han China and Imperial Rome had many similarities (patriarchy, expansion), the differences (recruitment, system of who is in authority) in methods of political control outweigh the similarities because of they had little interaction with each other. The first similarity between Han China and Imperial Rome is found when comparing their patriarchal societies.Both in Han China and Imperial Rome they were extremely patriarchal. In each society the man of the house could arrange marriages for their children, decided whether or not to keep the offspring born to their wives, and decided how to punish wives if they commit a wrongdoing. In Han China, for example they tried to strengthen patriarchal authority by emphasizing importance of filial piety and women’s subordination to men . Imperial Rome was also patriarchal, for example, because husbands would have multiple children with their wives in hope of birthing a strong, healthy son to carry on the family name and legacy.The main job given to women in Rome was to birth sons. The women had no say in the number of children they had or in keeping the children they gave birth to. If the women couldn’t fulfill this expectation of having sons, the husband would divorce the woman, have children with another woman, or simply kill his wife and find another one. The next similarity between Han China and Imperial Rome is the expansion of both their governments. Both societies sought to expand the borders of their empires through imperial expansion.They perceived threats to security led to wars and conquests, which increased the length of borders and led to more perceived threats. In vein of the Qin dynasty before the second empire, the primary goal of the Han dynasty was to unite all of China. To accomplish this , Han China invaded and brought the territories of Korea, Vietnam, and parts of modern Kyrgyzstan into Chinese society. Likewise, Imperial Rome conquered all of the Mediterranean basin and oversaw affairs from Anatolia and Palestine in the east to Spain and Morocco in the west.Both societies also had vast armies to control their new territories. Han China and Imperial Rome differed, firstly, in their forms of recruitment. In Han China, they needed educated officials to take positions in the society. To accomplish this, they created a university and civil service exams. The university they established was based on Confucianism for its curriculum and was used to prepare men for government service. The men also had to take civil service exams, which people rarely passed, to become a government official.The recruitment for Imperial Rome was simpler. A typical recruit for the Roman army would appear at an interview with a letter of introduction, often written by the family patron. Next, they had to have a medical examination. The examination consisted of checking for a minimum height which was demanded and making sure the soldiers had all their fingers, toes, and limbs. After this was over, the men were given advanced pay and would be posted to a unit. Han China and Imperial Rome are different, secondly, because of who is in control of their government.Han China’s political system was known for a centralized unit, that was ruled by an emperor through the Mandate of Heaven. Rome, however, had a centralized, interwoven structure that was ruled by a Roman monarch, who controlled their complex structure. Furthermore, Han China was divided into administrative districts that were governed by officials, selected by the emperor. Though in contrast, Imperial Rome created a monarchy, disguised as a republic, so that the emperor could have complete control, but the citizens would feel like they were contributing to the government.Han China and Imperial Rome were two ve ry influential societies in history. They shared many similarities as well as many differences with each other. Han China and Imperial Rome had several differences, like recruitment and their systems of who is in authority, but they also had many similarities, such as being patriarchal and expansion, however their differences outweigh their similarities because they had little interaction with each other so they didn’t share ideas or concepts.

Saturday, September 28, 2019

Evaluating Arguments about consumerism Essay Example | Topics and Well Written Essays - 1000 words

Evaluating Arguments about consumerism - Essay Example The paper summarizes and analyzes the two essays that present viewpoints on consumer culture in America before evaluating their efficacy. In his essay ‘The Year Without Toilet Paper, Mr. Green analyzes the lives of three members of a family (Mr. Colin, his wife and two-year-old daughter Isabella who wears organic cotton diapers) during their one-year experimental lifestyle the named ‘No Impact. Green explains that the rule of this lifestyle keep changing though the necessary regulations include preparing and taking natural foods grown not more than a two hundred and fifty mile radius of Manhattan city. Additionally, Mr. Colins family shops for no other household goods apart from the said foods thereby producing no trash in the form of paper. The family has a home composter in which only organic and biodegradable waste is dumped and consumed by worms. The most intriguing part the familys No Impact lifestyle is the fact that no member of the family uses any form of carbon-fueled transportation (Penelope 1). Mr., Colin Beavan, who is a senior writer, decided to embark on the No Impact year after his agent discredited all other possible possibilities that would sell as a book. This is an implication that Mr. Colin was doing this not only for the hope that people will tread more lightly on the earths resources, but also for the popularity of the book he was about to write. He had to turn his family’s lifestyle upside down in order to conform to the rules and regulations of the No Impact year. As a matter of fact, the family embraced full environmentalism to an extent that a visitor would hesitate to visit the bathroom for fear of failing to get tissue paper in there; hence the title ‘The Year Without Toilet Paper’ (Penelope 1). Colin’s decision to transform the lifestyle of his family to a No Impact lifestyle was not just inspired by the urge to protect some sort of â€Å"pristine

Friday, September 27, 2019

Fundamentals of Leadership Essay Example | Topics and Well Written Essays - 2500 words - 1

Fundamentals of Leadership - Essay Example This paper presents a report on the leadership within the BMW Group in relation to various models and theories of leadership. Joachim Milberg, BMW’ CEO is a pragmatic leader who has led the company to achieve the most successful period in its history. The Great Man theory of leadership is a characteristic quality of leaders whose qualities lead to a great positive transformation of a company or business organization. The description of the qualities of leadership by Northouse (2010), illustrates that it is through the good attributes of a leader that positive change is made possible. The changes which have been brought about by Milberg especially in car production and the significant increase in sales of the company’s brands apparently illustrates that he is a great leader. Milberg can also be described in relation to the trait theory of leadership because it is through his unique traits that have made him to be a successful leader in causing positive change within the company. Milberg’s leadership traits demonstrate that he is a sensible leader who is also level headed in making leade rship decisions. It can be argued that the special traits of this leader are inherited because they are explicit and unique when compared with the previous CEO as demonstrated by his excellent performance as the CEO of BMW Group. As a result of his god leadership traits, Milberg is very respected by all members of the BMW Group. The participative theory of leadership is described by Northouse (2010) as the kind of leadership style which gives due consideration of the opinions and needs of those who are led in reaching decisions. Milberg’s leadership in the company encourages democratic or team leadership in which the management gives the employees a chance to give their views and ideas on various project issues before reaching the final decision. Therefore the company’s CEO engages the company in participative leadership. Seminars and workshops are held in the

Thursday, September 26, 2019

Industry Research Completion Essay Example | Topics and Well Written Essays - 2000 words

Industry Research Completion - Essay Example According to Domansky and Williams (2006), the global automotive industry encompasses a few principal manufacturers such as General Motors, Toyota, Honda, Ford, Volkswagen and DaimlerChrylser that serve the global market. The globalization of automobile industry has resulted from the setup of overseas facilities and mergers between firms in recent times. The joint venture of General Motors and Toyota in New United Motor Manufacturing, Inc. and Fiat holding an 85% stake in Ferrari are examples of such mergers. The Automobile Industry is one of the most important industries in the world, employing millions of people, generating billions of dollars in world revenues, placing more than 806 million vehicles on the roads, accelerating the business and commercial activities and linking person to person, area to area and country to country. It is more than a 100 years old. It came into existence in Germany and France and later grew in USA as a result of mass production. However, Papatheodorou and Harris (2007) state that considering the level of employment and revenue it generates, the industry is suffering from financial crisis with profit margins falling from 20% in 1920s to 5% in 2007. This may be due to the maturity of automobile markets in developed countries. According to Encarta Online Encyclopedia (2009), the Automobile Industry has tried to reduce the cost of transportation through mass marketing, mass production and globalized production. The world is headed towards the crisis of recession and economic slump which is expected to reduce automobile sales worldwide. The present economic downturn has proven to have hit the automobile industry sharply and there has been rapid decline in the sales of the industry. Political and economic instability, credit crunch, banks being more particular about auto financing and the rising prices of cars has impacted the

Wednesday, September 25, 2019

Quality Pioneers (F) Essay Example | Topics and Well Written Essays - 500 words

Quality Pioneers (F) - Essay Example Edwards was the symbol of quality, he always insisted on the quality way of doing things more on the roots. He believed in the principal of putting efforts on the production part rather than concentrating on making profit. The fitness for use theory proposed by Joseph Juran has been embraced all over the globe. Joseph insisted on meeting the customers expectations in terms of quality and explained the advantages of the product meeting or even exceeding their expectations. Being a prolific author, Joseph emphasized on customer satisfaction and shifted his focus on technical and management level. He believed in three principals, quality of planning, controlling, and improvement (K. Heldman & M. Heldman, 2007). Joseph made greater contributions in shaping the business world; he is seen as a mentor to many. His principals of ensuring the quality and customer satisfaction has made it easy for organizations to embrace his theory (Bou, and Beltran, 2005) Philip Crosby who tolerated the zero defects theory. For this to be achieved he proposed that the prevention is more important than anything is, so there must be a balance at the start of the project for quality results. He strongly believed it was wiser and cheaper to meet quality standards rather than redoing the process again. The zero defects in accordance with his book Quality free says that it must be planned (K. Heldman & M. Heldman, 2007). Researchers have found it necessary to appreciate the role he played in shaping the economic factors. Philip in his writings insisted on the need of serving the interests of customers first before that of the organization (IFLA Satellite Meeting, Savard , International Federation of Library Associations and Institutions, 2002). Professionalism in the field of business economy must be guided by ethics. This means that each organization has to follow certain rules for its growth. The theories have raised more confusion as compared to solutions. This is because some

Tuesday, September 24, 2019

Telecommuting and the mobile worker Essay Example | Topics and Well Written Essays - 500 words

Telecommuting and the mobile worker - Essay Example Regarding shifts, since telecommuters work from homes or nearby telework centres, those only available during non-conventional hours still have the flexibility to maintain their lifestyles and work their shifts too (Ellison, 2004). During disasters or when employees cannot access the central workplace, it is helpful if the firm has a separately located data bank, back-up servers and disaster recovery plans that allow employees access from any other location upon appropriate authorisation. Four advantages of telecommuting to the IT manager are reduced needs and costs associated with relocating equipment; fewer interruptions; higher capability to acquire talent; and reduced software license costs for personal devices (Hill et al, 2002). Since employees are free to work from locations of their convenience, they will find their own ways of mobility and hooking up to the infrastructure. This leads to fewer interruptions that arise when employees have to be moved to different areas of the office and having to be set up afresh. Since employees do not have to be in the same geographical region as the headquarters, appropriate talent can be sought from anywhere and contribute to the firm’s productivity. Finally, employees will often be responsible for upgrading their personal devices to keep up with technology and continue having access to their working information and stay connected. The disadvantages include the initial sourcing of appropriate technology; security threats; challenges in actively and continuously connecting employees; and efficient tracking of employees. Acquiring and implementing the technology to support telecommuting seamlessly is a burden to the IT budget. Then, since the IT manager has no foolproof way of controlling who shares remote devices with employees and accesses confidential information from them, security may be compromised. Further, since employees are only concerned with getting their

Monday, September 23, 2019

An overview of prevailing trend of Chinese hotel joining hotel chains Essay

An overview of prevailing trend of Chinese hotel joining hotel chains - Essay Example With the exposure to the foreign markets most of the single hotels are adopting the trend of joining the chains in order to get the advanced facilities with continuous renovation and updation. "Increasingly the chains are offering a better and better selection of services and products from around the world, which is rapidly exposing the Chinese consumers to products that they would otherwise not have the opportunity to sample." (Tibbits, 2003) "The growth of China's inbound tourism market appears to have matched its economic growth and has consistently outstripped the world wide average. Between 1990 and 2000, international visitor arrivals to China increased by an average of 11.8% pa, while global tourism grew by a modest 4.3% pa. During 2001, the disparity was magnified. In the face of a global decline of 1.3%, international visitor arrivals to China increased by 6.7% to reach 89.0 million. This growth continued into the first six months of 2002, with international arrivals increasing by 9.4% over the six months to June 2001. The World Tourist Organisation recently announced that China was set to overtake Italy, US, Spain and France and become the top destination by 2020, attracting 130 million international visitors" (Jones Lang LaSalle Hotels, October 2002) Most of the hotels in China are undergoing the process of management improvement. The new techniques of planning by objectives and improved decision making are being implemented by following the lines of the foreign hotels in order to achieve the competitive edge among the industry participants. Another trend, which is gaining popularity in the industry, is the collaborative projects and ventures of the domestic and foreign hotels proving fruitful for both. The foreign personnel trains the trains the domestic employees about the modern techniques on the other hand the local hotel facilitates environmental and legal adjustments of the foreign hotels in the market. The Chinese regulatory bodies have opened the hospitality industry for the foreign hotels but restricted them to the level of 3 star hotels in order to save the domestic hotels having weak position (Jones Lang LaSalle Hotels, October 2002). But with encouraging the foreign hotels to support the domestic hotels the Government has taken cautious measures to limit the role of the foreign hotels to effect the tourism market of the country. Most of the Chinese single hotels are joining into hotel chains in order to undertake better development and provision of strong financial back up in order to respond to the competition posed by the foreign hotels laced with most advanced facilities management and booking system. Most of the single hotels need to undertake strong and aggressive strategic steps to keep themselves present in the market. This surge of drastic steps forces them to affiliate with the foreign large hotel chain such as Six continents, which are the symbol of aggressive and effective strategies. The adoption of the pattern of joining the hotel chain by the single hotels in China has lead to the domination of the large international hotel chain domination in the

Sunday, September 22, 2019

Expectations manipulate the reader Essay Example for Free

Expectations manipulate the reader Essay How does Dickens Presentation of Pips threatened childhood in chapters 1-8 of great Expectations manipulate the reader? Great expectations is a book written by Charles Dickens, and was first published in 1861. Charles Dickens was a Victorian writer and also a social commentator during the time. The novel Great Expectations commentates on lower class life in the Victorian era. The book is mainly based on social criticism. The novel is about a boy called Pip who has a cruel start to life, living with his mean sister and her husband. With many people indifferent to Pips life, Pip starts with low expectations wanting to go to prison. Afterwards his life changes when he is described as a common labouring boy, eager to change this he also changes his expectations in life and from wanting to go to prison, or becoming a blacksmith he wants to become a gentleman and have a high status. Throughout the novel we are manipulated into feeling sorry for Pip. The events in his life, the people he meets and the way he is treated from childhood till he is grown up. Pip is an orphan at the beginning of the story, this and the factors such as that his parents are dead make us feel sorry for him. He also lives with his sister who is a harsh and beastly woman and treats him horridly. We are first introduced to Pip whilst he is a child. While in the graveyard he meets an escaped convict who treats him harshly. One of the ways that Dickens manipulates us during this is showing how unprotected and weak Pip is. After each question he tilted me over a little more, so as to give me a greater sense of helplessness and danger (chapter 1) this quote shows how feeble Pip is. We are later manipulated even more by the way his sister treats him. Contempt and hatred are just some of the ways that could be used to describe her attitude towards him. Hence he is a lonely, weak boy who has no parents. Mrs Joe applied Tickler to its further investigation. She concluded by throwing me I often served as a connubial missile. She beats Pip and acts as if he is nothing but a mere slave to her and must do as he is told or she willHow does Dickens successfully link Magwitchs appearance in Chapter one with his return in Chapter Thirty-nine in Great Expectations? Great Expectations is set in the 1800s, for gentlemen of that time, life was rich and full of beautiful houses and places. Because they didnt have to work they spent their days chatting, going to dinners and just having fun. But for the working class, they had to always be thinking of ways to make money and always working to secure their next meal. This novel was serialised, which meant that the story was published part by part and so, many groups of people would gather together to read the story. They could then tell each other what they thought was going to happen in the next couple of chapters. To make the audience want to read the next couple of chapters, Dickens had to end each chapter with a cliff hanger. The central protagonist in this novel is Pip. In the first chapter we learn that Pips parents are dead and so he lives with his sister and her husband. We also learn that he had 5 other brothers and sisters who have also died as their five mini gravestones or rocks are beside Pips parents grave. He frequently visits his parents grave even though he has no memory of ever seeing them. He paints a picture in his mind of his mum and dad. In this chapter we get to meet Abel Magwitch who will become a central figure in Pips life. Dickens successfully uses pathetic fallacy in both Chapter One and Chapter Thirty-nine to create a negative tension. In Chapter One, he describes the weather with negative adjectives such as sting, torn, and growled. These all give negative connotations to the reader to create the bad tension in the weather. He also uses the onomatopoeia like shivers and shuddering to show how the weather is affecting people. He also uses the word shuddering again in Chapter Thirty-nine providing an obvious link in the weather. Dickens uses the adjective angry more then once to show that whatever is going to happen wont be good. In Chapter Thirty-nine, Dickens hints at negative events by using the simile, like discharges of a cannon which also ties into Chapter One because it is signalling that an escaped convict could be entering the story again because a cannon would sound whenever a convict had escaped. Dickens describes the weather as stormy and wet, stormy and wet which uses repetition to push across how bad the weather is. He also says, mud, mud, mud which is a list of three, which is a very convincing technique to help set the scene for Magwitchs return.

Saturday, September 21, 2019

Educating Rita by Willy Russell Essay Example for Free

Educating Rita by Willy Russell Essay Rita, Frank and their relationship change throughout the play. Ritas education and confidence both grow as the story progresses. Franks attitude towards life declines dramatically en route for the middle of the play but there is hint of improvement at the end. Their relationship undergoes many changes during the play. They grow apart, slowly and eventually reach a point where their separation is much needed and inevitable, although their feelings towards each other are of affection once again. At the beginning of the play Rita is a stereotypical working class girl, with little education and a lot of determination. She uses a lot of slang and colloquial language, stupid bleedin handle and off me cake, which shows her lack of education and her class. Rita appears ro be a confident girl, but she uses humour to cover up her nerves, thats what I do. Y know when Im nervous. Rita is also a lively, talkative person and very blunt and forthright. She shows this when she takes the pencil from Frank and scribbles out the letter S. Rita has a particularly determined character. At the start of the play she knows that she wants an improved life, with choices and she knows an education will give her that. So she is making sure she is going to get it, even at the cost of her marriage. When Rita leaves Denny she still wants to learn and discuss her Macbeth essay immediately. At the beginning of Act 2 Scene 2 Rita is seen oiling Franks door. This shows her determination and that she follows through her word, does what she says she will. Russell uses stage directions to show Ritas energy, the door bursts open and Rita flies in. The words flies and burst convey bubbly, lively movements and therefore her energetic character. At the start of this play Frank is a stereotypical upper-middle-class man. He is apathetic sarcastic and relatively independent. Frank uses Standard English and Received Pronunciation, showing his high class and good  education. He asks pardon? instead of what? and explains that the Open University is supposed to embrace a more comprehensive studentship. Frank is not dependant on anyone, but he drinks a lot and I think that he relies on alcohol a great deal. Therefore I would not say he is totally independent. Frank is very sarcastic and quick witted. He uses his sarcasm as a defence mechanism, or to make a point. He doesnt use it nastily or to hurt anyone. I sometimes get an urge to throw something through ita student usually. This shows him using sarcasm for humour but it also shows his disinterested, lazy attitude to life. Frank is bored of his life but, unlike Rita, he cannot be bothered to change it. He finds himself dull and tells Rita that she is the first breath of air thats been in this room for years. He does not want Rita as a student as he sees her as a lot of work, this shows his lazy attitude. However, the audience could also see this as a selfless and considerate moment. He does not want to take Rita on as a student as he does not think he is capable of teaching her. Frank is extremely clever and refers to high culture, such as T.S Elliot and Yeats, showing his high education and understanding. At the start of the play Frank is bored, funny, sarcastic, clever and shrewd. Frank and Rita get to know each other well and are very close, at the beginning of the play. They flirt and compliment each other, he doesnt half get on my tits/Frank: Good. Youll have to show me some evidence/Rita: Y dirty sod. And Right now theres a thousand things Id rather do than teach, most of them with you my dear. They trust one another and show this through discussion of their personal issues, I live with a girl. Ex-student. Shes very caring, very tolerant, admires me tremendously and spends a great deal of time putting her head in the oven. They then go on to discuss Julia and Franks relationship. Their ability to talk freely to each other shows that they are at ease in each  others company, relaxed and confident around one another. Nevertheless, their relationship is not always easy. It is hampered by their different frames of reference. At one point Frank thinks Rita is joking about T.S Elliot the poet, when in fact she is referring to Elliot Ness, y know, the famous Chicago copper who caught Al Capone. At another point Rita is calling Frank a Flora man from the advert for the butter: flora. Frank assumes she means flora as in flowers. However, Frank and Rita have a mutual understanding of each other, which helps them work through and get beyond their misunderstandings. Their differences intrigue and fascinate one another. This helps keep their relationship alive and fresh. In the middle of the play we see dramatic changes in Rita. Right at the beginning of Act 2 Russell indicates a change by Rita entering wearing new second hand clothes. Rita is at a very difficult point in her change. She has come so far and cannot go back to where she used to be, but she is finding it difficult to carry on, she is half way and stuck in between two worlds. Rita chooses to persevere. Rita has much more confidence and is using humour to hide behind less. She is more educated and has been influenced by lots of people over the summer. Her confidence shows when she tells Frank about summer school. She explains how she asked a question even though everyone was looking at her and two thousand people had seen me stand up. She then goes on to say, after that I was askin questions all week. Before summer school Rita wouldnt have dared do something like that. As well as her confidence improving she is now using more Standard English, although still using colloquial language. Summer has had some less positive effects on Rita, too. She has been very influenced by Trish and although she has now got a better understanding of literature she still does not have her own views. She has merely swapped Franks opinions for Trishs opinions. Frank comes back from holiday even more fed-up with life than before. Rita asks him what France was like, marvelling at the opportunity to go abroad. Frank gives an uninterested answer of well it was rather hot. He is very dismissive, taking for granted the occasion of going abroad and his answer is slightly hostile and cold. He seems to be more apathetic and very low, not recognising that he has got so much going for him. it is indeed because I have got so much going for me that I do itI need the drink to help me step delicately through life. This comment shows that he is still using sarcasm, it shows his sad view on his life and he tells us that he needs drink. This informs us that he has become very reliant on drink. He is worse than he was before, turning up to lectures drunk and not taking anything seriously. He does not even bother to hide the drink anymore. He carries it, in his briefcase, to lectures. The briefcase symbolises work, so to carry alcohol in it shows just how little he cares. Frank now chooses to ignore his education; Rubyfruit Jungle is excellent. He is reverting to how Rita was. Whereas, Rita now has a view, shows her understanding and expresses it formally. They have echoed each other. Franks language has also changed. He is reiterating phrases from Rita, completely off me cake, and he has picked up some of her slang. He is still sarcastic, but sometimes in a hostile, jeering way, like when he shouts names at Rita Charlotte? Or Jane? Or Emily? At the mid-point in the play Frank is hopeless, he challenges Rita saying and well all live happily ever after? Saying this squashes dreams, is sarcastic and apathetic and takes a completely pessimistic outlook on life,  his decline is continuous. Their relationship dwindles when they meet again after summer. The changes in Rita have a big role to play in the downward spiral of their relationship. Rita is becoming more independent, She needs Frank less, he begrudges her this and it causes tension. Dont y like me now that the little girls grown up, now that y can no longer bounce me on daddys knee an watch me stare back in wide eyed wonder at everything he has to say? They understand each other less and know little about each others lives. It struck me there was a time you told me everything, Frank is wistful and shows a sense of longing. He feels Rita slipping away, I cant bear you anymore, he tells her, you dont have to put in a visit out of sentimentality. They no longer have a close relationship and Frank misses and feels bitter about that. They become increasingly resentful towards each other. Frank start to get jealous and resentful of Trish, this feeling fuels further conflict. Will you kindly tell Trish that I am not giving a tutorial to a Dalek. This remark shows coldness in their relationship, the warmth, flirting and friendly banter has gone. At the end of the play Rita has more choices than before, she is educated, confident and able to think for herself. Rita is undecided what the next step in her life should be, but she now has a choice and this is what she set out for: to be able to choose. I might go to France. I might go to my mothers. I might even have a baby. I dunno. Ill make a decision, Ill choose. I dunno. She is educated now and has passed her exam. Arguably more important is that she is no wise. She can think for herself, think logically and develop her own opinions. You woulda loved it if Id written Frank knows all the answers across me paper, wouldnt y? However, Rita did not and this shows  her education and thinking skills. She uses Standard English more now, such as scholarly neckline. Again showing her education. Rita is no longer hiding behind humour, but she is genuinely confident and still funny. Probably the biggest change in Rita from beginning to end is that she now understands Franks views and realises he was and is on her side. She places a Christmas card with the others already there. The card is a token of friendship and signifies her realisation that what she had was not all that valuable. Her realisation shows how she has matured, changed her way of thinking and now feels more kindly for Frank. Frank is now sober and hints that he will make a change in his life. There is now some optimism. He is trying to think well of his move to Australia, things are just beginning there this implies he will take this as an opportunity to start fresh, itd be good for us to leave a place thats just finishing for one thats just beginning. Frank accepts the changes in Rita and shows his thoughtful side when he gives her the dress. He also has a realistic moment and says, I was rather pissed when I bought it. He is not pretending to be a reformed character and he is reminding the audience of his drinking and old habits. Frank is now using Standard English again, metaphorically. And as it was metaphorically the sentence was reduced from the sack to two years in Australia. He is still humorous, Forsters lager they call it, and is sarcasm is still there, but it is no longer hostile. Although Frank is in a worse position than at the start of the play there is hint of improvement and a better life. Ritas response to Trishs suicide and Franks realisation of the need to change has resulted in a greater mutual understanding and a friendlier relationship. I knew how much it had come to mean to you. Frank did not like Rita in the middle of the play but understands why she was like that. They both accept the changes in each other. Rita now appreciates all the help Frank gave her, I came to tell you youre a good teacher. Frank realises her learnt a lot from Rita, too, all Ive ever done is taken from you. Ive never given anything/Frank: thats not true. Youve They understand that they have got to go their separate ways now, and move their lives on, but they part on good terms. Rita begins as a stereotypical working-class girl, with a poor education, who hid behind humour. She goes through a series of changes and ends the play as a confident, wise, educated young lady, ready to make her own choices and get on with her life. Frank begin as a upper-middle-class man, he was very sarcastic, had a poor attitude towards life and relied on drink. As the book progressed he developed a serious drinking problem, became more and more apathetic and finally reached a point where he was on the verge of being sack. He eventually starts to get things into perspective and hints at a brighter future. The relationship between Rita and Frank began well, they complimented and trusted one another. They drifted apart and argued in the middle, but reconciled their relationship and parted on good terms. I think the main change in Rita was that she started with no choices, she had a hunger for more and great determination, which resulted in her gaining the ability to choose, and to choose wisely. I think this change in Rita was conveyed very well because as the story progresses we saw her make many decisions along the way. We saw how the choices she had to make got bigger  and bigger and how her ability to deal with the choices got better and better. The book finished with her thinking about the biggest choice; whether to have a baby or not. I think Franks character was portrayed well via his language and through his drinking habits. I really enjoyed the book and thought Russell kept me interested by adding new details along the way, we learnt more about the characters private lives as the story continued and this was an added interest. I think that the book had a good ending, as it was realistic. It showed how what they had done throughout the book and what choices they had made affected their position at the end of the book. This emphasised the theme of choice again.

Friday, September 20, 2019

Role of Silicosis in Silica-associated Lung Cancer

Role of Silicosis in Silica-associated Lung Cancer Background Crystalline silica is a mineral compound composed of silicon and oxygen atoms that are arranged in a repeating pattern. Common polymorphs of crystalline silica include quartz, cristobalite and tridymite, with quartz as the most common form. Human exposure to crystalline silica is most often from occupational tasks that involve disturbance, use or manufacture of quartz-containing materials, including stonecutting, mining, quarrying and ceramics.[i],[ii] In 1997, the International Agency for Research on Cancer (IARC) concluded there was sufficient evidence for carcinogenicity in humans with occupational exposure to respirable crystalline silica in the quartz or cristobalite form.[iii] The 1997 IARC Monograph noted the greater part of epidemiologic studies reported the presence of silicosis (referring to the chronic or also known as classic type), a fibrotic disease of the lung that is associated with high exposure to respirable crystalline silica dust, increases excess lung cancer risk among workers exposed to silica. However, it remains unclear whether lung cancer development among these workers is due to the presence of silicosis or due to exposure to significant silica levels with silicosis being a confounder rather than a prerequisite. A recent literature review of relevant epidemiological studies confirmed that there remains uncertainty about excess lung cancer risk exclusively among silicotic workers due to the shortcomings of the design of existing epidemiological studies, including the inaccurate measurement of silica exposure, inadequate characterization of the exposure-response relationship between crystalline silica and lung cancer, inadequate control for potential confounders such as known lung cancer risk factors and the presence of other carcinogenic agents in the workplace, and the absence of comparing the lung cancer risk between silicotics and non-silicotic (do not have silicosis) workers as controls. The proposed research study attempts to clari fy the role of silicosis in silica-associated lung cancer development by addressing some of the identified study design challenges. Significance Determining if silicosis is a prerequisite for lung cancer development has important public health implications for setting occupational standard for silica exposure, implementing workplace medical surveillance programs and determining causation in medico-legal cases. For example, if it is determined that lung cancer risk increases among workers exposed to silica only in the presence of silicosis, then efforts should be focused on reducing high silica exposure to a level that reduces the risk of developing silicosis. However, if it is determined that silicosis is not a prerequisite, then lung cancer development can occur at silica exposures lower than those likely to cause silicosis, which makes prevention of exposure to high silica levels not adequate for worker protection. Specific Aims To better understand the role of silicosis in the pathway leading to lung cancer from occupational exposure to silica, the specific aims of the study are: To examine the association between occupational exposure to crystalline silica and lung cancer risk in the presence and absence of silicosis and To measure the exposure-response relationship between crystalline silica and lung cancer risk with risk estimates adjusted by silicosis Procedures/Methods Study Design and Population A nested case-control study design will be utilized to analyze the association between occupational exposure to crystalline silica and lung cancer risk among silicotic and non-silicotic workers from an original cohort mortality study. The original study was conducted among workers from the Vermont granite industry.[iv] They were identified from a group insurance program enrollment between January 1st, 1947 and December 31st, 1998, Vermont Department of Health Division of Industrial Hygiene (DIH) records, pension records, data from a study of workers employed from 1979 to 1987 and data from a study of retired workers.iv The data from the multiple sources were linked to avoid duplications. As a result, the cohort consisted of 7052 Vermont granite industry workers. The mortality follow-up of the cohort identified 359 observed lung cancer deaths. iv Age at death, smoking history and silica dust exposure, medical history of obstructive lung disease and demographics will be compared betwee n the cases and controls. Workers that did not have sufficient smoking information, work histories and available chest radiographs were excluded. The exposure of interest will be the cumulative exposure to silica dust. The study population is unique in that the Vermont granite industry has a long history of silica exposure, medical surveillance and a general exclusion of occupational exposures associated with lung cancer. Case Ascertainment Lung cancer cases will be ascertained from the original Vermont granite industry cohort study. The vital status and cause of data was ascertained from the US National Death Index (NDI), US Social Security Administration vital status records and the Vermont State Records Office. The cause of death was coded to the 9th Revision of the International Classification of Diseases (ICD-9). Control Ascertainment Controls will also be ascertained from the original cohort study. The controls are defined as workers who did not die from lung cancer. Lung cancer cases will be matched to 2 controls by age. Silicosis Ascertainment The presence of silicosis among the cases and controls would be obtained from compensation and medical surveillance records. Silica Exposure Measurement Cumulative exposure to respirable crystalline silica was measured using a job exposure matrix that utilized industrial hygiene measurements. The cumulative exposures are categorized in quartiles. Sample Size Justification According to the sample size calculator (http://www.surveysystem.com/sscalc.htm), it is estimated that this study would need approximately 360 subjects are required in the study to obtain the confidence level of 95% with an interval of 5%, if we are selecting subjects from the 7052 Vermont granite industry workers cohort. We will strive to obtain 90 cases and 180 controls, based on the availability of sufficient smoking information, work histories and chest radiographs. Statistical Analysis Statistical analysis will be performed to calculate odds ratios to examine the association between lung cancer and total and each quartile of cumulative silica exposure in the presence and absence of silicosis. Odds ratios will be adjusted for smoking, obstructive lung disease and age as they are potential confounders. Odds ratios will be calculated with 95% confidence intervals. Study Strengths Strengths of the proposed study include: comparing the association of silica exposure and lung cancer in both silicotic and non-silicotic workers measuring the exposure-response relationship between silica and lung cancer risk, taking into account the presence and absence silicosis controlling for potential confounders of smoking and obstructive lung disease excluding potential confounders of other occupational exposures associated with lung cancer by studying the granite industry cohort conducting a nested case-control study is less expensive than a full cohort study since a comparably significant number of lung cancer cases have emerged Study Limitations Potential biases and study limitations are: Selection bias is a concern as silicotic workers are identified from compensation and medical surveillance records Silicotic workers may be diagnosed by different criteria, but resulting in non-differential misclassification Differential misclassification may result from categorizing the silica exposure in quartiles Silica exposure assessment may not be accurate if the job exposure matrix is methodologically sound Only studied one type of industry associated with silica exposure Non-diseased persons from whom the controls are selected may not be fully representative of the original cohort due to loss to follow-up or death References [i] International Labour Organization (ILO)/SafeWork Bookshelf (2006). ILO Encyclopaedia of Occupational Health and Safety: Volume 1, Part I. Body: Chapter 10 Silicosis. Available at http://www.ilo.org/safework_bookshelf/english?dnd=170000102nh=0. [ii] Occupational Safety and Health Administration (OSHA) (2002). OSHA Fact Sheet: Crystalline Silica Exposure Health Hazard Information [Electronic Version]. Available at http://www.osha.gov/OshDoc/data_General_Facts/crystalline-factsheet.pdf [iii] WHO/IARC (1997). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans: Silica, Some Silicates, Coal Dust and para-Aramid Fibrils [Electronic Version]. Volume 68; available at http://monographs.iarc.fr/ENG/Monographs/vol68/mono68.pdf. [iv] Vacek PM, Verma DK, Graham WG, Callas PW, Gibbs GW (2010). Mortality in Vermont granite workers and its association with silica exposure. Occup Environ Med, 68(5), 312-318.

Thursday, September 19, 2019

An Analysis of Aria: A Memoir of a Bilingual Childhood by Richard Rodri

An Analysis of Aria: A Memoir of a Bilingual Childhood by Richard Rodriguez Aria: A Memoir of a Bilingual Childhood by Richard Rodriguez is an essay that shows his readers a part of life that many have never experienced. Rodriguez uses this essay to show how he fights through his childhood to understand English. Speaking clear English will help him to fit in to society. He faces society while forfeiting his happy home life, to try to become a typical English-speaking student.   Ã‚  Ã‚  Ã‚  Ã‚  As a young child, Rodriguez finds comfort and safety in his noisy home full of Spanish sounds. Spanish, is his family's' intimate language that comforts Rodriguez by surrounding him in a web built by the family love and security which is conveyed using the Spanish language. "I recognize you as someone close, like no one outside. You belong with us, in the family, Ricardo.? When the nuns came to the Rodriquez?s house one Saturday morning, the nuns informed the parents that it would be best if they spoke English. Torn with a new since of confusion, his home is turned upside down. His sacred family language, now banished from the home, transforms his web into isolation from his parents. "There was a new silence in the home.? Rodriguez is resentful that it is quiet at the dinner table, or that he can't communicate with his parents about his day as clearly as before. He is heartbroken when he overhears his mother and father speaking Spanish together but suddenly stop w hen they see Rodriguez. Thi...

Wednesday, September 18, 2019

The Causes and Effects of the Iranian Revolution Religiously and Politi

A revolution is a mass movement that intends to violently transform the old government into a new political system. The Iranian Revolution, which began in 1979 after years of climax, was an uprising against the Shah’s autocratic rule resulting in much religious and political change. Shah Muhammad Reza Pahlavi made efforts to remove Islamic values and create a secular rule and â€Å"westernize† Iran through his White Revolution. In addition, his tight dictatorial rule and attempts at military expansion felt threatening to the people, who desired a fairer governmental rule immensely influenced by Islam. Afterwards, governmental affairs became extremely influenced by Islamic traditions and law which created changes religiously and politically for years to come. Although the Iranian Revolution was both a political and religious movement in that it resulted in major shifts in government structure from an autocracy to a republic and that Islamic beliefs were fought to be preserved, it was more a religious movement in that the primary goal of the people was to preserve traditional ideology and in that the government became a theocracy intertwined with religious laws and desires of the people. Although the Iranian Revolution was caused by combination of political and religious motivations and ideas, the desires of the people supporting the movement were more dominantly religious ideas that were wished to be imposed in society and in a new government. The Shah, or king, of Iran at the time was Muhammad Reza Pahlavi, who had developed relations with nations in â€Å"western† world, specifically with the United States. The United States supported the White Revolution, which was a series of social reformations the Shah made to remove Islamic v... ...e were these political results mostly noticed were the religious changes. Though the White Revolution’s efforts were made to remove Islamic values, create a secular rule and â€Å"westernize† Iran by Shah Muhammad Reza Pahlavi, the people desired a fairer governmental rule immensely influenced by Islam. The Shah’s tight dictatorial rule and military expansion attempts were viewed as threats as well and resulted in the overthrowing of the government to create religious and political change. Although the Iranian Revolution was a religious and political movement that ended an oppressive rule to established a republic and which was fought to maintain Islamic beliefs, it was more a religious movement in that the movement was a result of desires to create a society influenced religiously and politically and that the result was a republic based on Islamic values and law.

Tuesday, September 17, 2019

Synthesis of Cinnamaldehyde from Benzaldehyde

Vidallon, Mark Louis P. Date Performed: February 20, 2012 CHEM44. 1 2LDate Submitted: March 12, 2012 MIXED-ALDOL CONDENSATION Synthesis of Cinnamaldehyde I. Introduction Cinnamaldehyde, cinnamic aldehyde or 3-phenyl-2-propenal is the major constituent of cinnamon oil, extracted from several species of Cinnamomum (C. verum, C. burmanii, C. cassia), under the family Lauraceae, a group of evergreen trees. Cinnamon bark (particularly C. verum) yields 0. 4-0. % oil, which contains 60-80% cinnamaldehyde, 4-5% sesquiterpenoids (? -humulene, ? -caryophyllene, limonene and others), eugenol, cinnamyl acetate, eugenol acetate, cinnamyl alcohol, methyl eugenol, benzaldehyde, benzyl benzoate, cuminaldehyde, monoterpenes (linalool, pinene, phellandrene and cymene), safrole and others (List and Horhammer; Masada; Ravindran qtd. from Khan and Abourashed, 2011). Isolation of cinnamaldehyde from cinnamon oil of Cinnamomum sp. ark, called â€Å"quills†, â€Å"quillings†, â€Å"feathering s† and â€Å"chips† depending on quality, was first done in 1834 by Dumas and Peligot (Attokaran, 2011). It has been proven that cinnamaldehyde from cinnamon oil has a very high potential in the pharmaceutical industry, aside from its well known role in the food preparation, specifically as spice, odorant and colorant. Several researches have proven the antimicrobial activity of cinnamaldehyde against Salmonella typhimurium and Bacillus subtilis (Council of Europe, 2008).Also, cinnamaldehyde has been proven to inhibit microbial growth of opportunistic human pathogenic fungi, such as Aspergillus niger, Candida albicans and Rhizopus oligosporus, and various bacteria (Escherichia coli, Enterobacter cloacae, Micrococcus luteus, Staphylococcus aureus, Streptococcus faecalis, and others) (Khan and Abourashed, 2011). Several studies have also unraveled the hypoglycemic (insulin-like) and hypolipidemic properties of cinnamaldehyde since it can cause: elevated glucose oxidation and uptake, causing decrease in blood plasma glucose levels; decreased glycosylated hemoglobin, serum total cholesterol and riglyceride levels; increased plasma insulin, hepatic glycogen and high-density lipoprotein; and restored modified plasma enzyme concentrations to almost normal level (Babu, Prabuseenivasan and Ignacimuthu, 2006). Though effective approaches in the isolation of cinnamaldehyde from cinnamon oil from quills, low amounts of pure cinnamaldehyde can only be obtained from effective separation processes. Feature Article Relative Rates:  Free-Radical BrominationDue to this demarcation in the discovery and investigation of other potential medicinal and non-medicinal values of cinnamaldehyde, chemists have also developed synthetic procedures to obtain high amounts of pure cinnamaldehyde, one of which is the mixed aldol condensation of benzaldehyde and acetaldehyde. Mixed aldol condensation is a reaction of different aldehydes or ketones leading to the formation of aldols (? -hydroxyaldehydes) or ketols (? -hydroxyketones), accompanied by the removal of water to result finally to enals (? , ? -unsaturated aldehydes) or enones (? , ? -unsaturated ketones).Aldol additions are due to the reaction of enolate ions of carbonyl compounds (from the reaction of acidic ? -hydrogens of aldehydes and ketones with bases) with the electrophilic centers of other carbonyl compounds. Synthesized aldols and ketols can dehydrate spontaneously or can be dehydrated, especially when heated, to form enals an d enone, the final product(s) of aldol condensations (Moore and Langley, 2010). Possible side reactions were the Canizzarro reaction of benzaldehyde and the self-condensation of acetaldehyde. Minimization of the possibilities of the stated reactions was done by following a special scheme of procedure.Characterization tests that were done in to confirm the identity of the products are boiling point determination, reactions with nitric acid and with sodium bisulfite and derivatization with 2,4-dinitrophenylhydrazine. In the experiment conducted, the objectives of the author were as follows: 1. To synthesize cinnamaldehyde from the base-catalyzed mixed aldol condensation of benzaldehyde and acetaldehyde; and 2. To characterize the synthesized product using its boiling point, results of simple chemical tests and derivatization reactions, along with the determination of the elting points of the hydrazones and comparison of the hydrazones using their RGB values. II. Materials and Methods A. Reagents The following are the reagents were used in the experiment: Benzaldehyde Acetaldehyde 15% sodium hydroxide solution Sodium chloride 95 % ethanol solution 40% sodium bisulfite solution 2, 4-dinitrophenylhydrazine Nitric acid Ice B. Apparatus and Equipment The following are the apparatus and equipment were used in the experiment: 50-mL round-bottom flask 50-mL beaker 10-mL graduated cylinder 10-mL pipet Pasteur pipet Micro distilling flask Test tubes Evaporating dish Thermometer Bunsen burnerMicroreflux Watch glass Iron ring Iron clamp Iron stand Separatory funnel Wire gauze Hot plate Electronic top loading balance Fisher-Johns melting point apparatus III. Schematic Diagrams C. Synthesis of Cinnamaldehyde (in round-bottom flask) 3. 06mL – cool in ice bath + 3. 00mL 15% NaOH + 0. 50mL dropwise with swirling + 3. 00mL 15% NaOH + 0. 50mL dropwise with swirling + 3. 00mL 15% NaOH + 0. 68mL dropwise with swirling – reflux for 10-15 minutes – cool to room te mperature – cool in ice bath – separate layers Organic layer , very minimal (in 10-mL graduated cylinder) Aqueous layer very minimal, unreactedH2O with Na+ and Cl- Measure amount and save for characterization discard D. Characterization 1. Boiling Point Determination Product (in distilling flask) – distill Note temperature at which liquid starts to boil 2. Reaction with Nitric Acid (Test for presence of benzene ring) 1-2 drops of test compound1 (in test tube) + 1-2 drops HNO3 Observe visible changes and temperature changes 3. Reaction with Sodium Bisulfite (Test for presence of carbonyl compounds) 4. 0mL 40% NaHSO3 + 1. 0mL ethanol – filter Residue Filtrate Save and label â€Å"alcoholic NaHSO3† 1-2 drops of test compound1 (in test tube) + 1-2 drops alcoholic NaHSO3Observe visible changes 4. Derivatization with 2, 4-Dinitrophenylhydrazine 1-2 drops of test compound1 (in test tube) + 4. 0mL ethanol + 3. 0mL – filter – recrystallize usi ng 95% ethanol Colored hydrazone crystals Determine melting point and RGB values Compared appearance, melting points and RGB values with other hydrazones 5. Combustion Test 2-4 drops of test compound1 (in evaporating dish) – flame carefully using Bunsen burner flame Observe flammability, flame color and sootiness and compared with other test substances 1 Compounds to be tested are: cinnamaldehyde (product), benzaldehyde and acetaldehyde.IV. Data and Results Table 1. Observations on the synthesis of cinnamaldehyde. Reagent/Action Taken| Observations| Benzaldehyde| Clear, colorless, dense liquid| Acetaldehyde| Clear, colorless liquid| Sodium hydroxide| Colorless liquid| Benzaldehyde + NaOH| White mixture| Mixture + dropwise addition of acetaldehyde| Yellow oil (upper layer) and off-white lower layer| Reflux| Dark brown, opaque, viscous liquid mixture| Cooling| Formation of layers| Extraction:| | Organic layer| (Upper) Dark brown, opaque viscous liquid with cinnamon scent| Aqueo us layer| (Lower) Light brown, translucent liquid|Product| Dark brown, opaque viscous liquid with cinnamon scent| Table 2. Percent yield of the synthesis of cinnamaldehyde. Compound| Amount (mL)| Benzaldehyde| 3. 06| Acetaldehyde| 1. 68| Cinnamaldehyde:| | Theoretical| 3. 78| Experimental| 3. 46| % Yield| 91. 6 %| Table 3. Boiling points of compounds used and synthesized in the experiment. Compound| Boiling point (oC)| Benzaldehyde| 179| Acetaldehyde| 65-82| Cinnamaldehyde:| | Theoretical| 250-252| Experimental| Decomposed| Table 4. Results of the characterization tests of the product and reactants. Compound| Reaction with HNO3| Reaction with NaHSO3| Observations| (+/-)| Observations| (+/-)| Benzaldehyde| Yellow-orange liquid;Heat production | + | White precipitate | + | Acetaldehyde| Clear, colorless liquid (N. R. ) | – | White precipitate | + | Cinnamaldehyde| Two layers: opaque, dark brown (upper) and translucent, chocolate brown (lower) | + | Brown precipitate | + | Table 5. Results of the derivatization with 2,4-DNP. Compound| Observations| Melting point of hydrazone (oC)| Mean RGB Values (in hexadecimal)| | | Theoretical| Experimental| | Benzaldehyde| Orange yellow solids| 255. 25| 218| E7B01A| Acetaldehyde| Crimson red solids| 221. 6| 174| C75B34| Cinnamaldehyde| Red orange solids| 267. 76| Decomposed| AF6D21| Table 6. Observations on the combustion test of the reagents and the product. Compound| Flammability| Flame color| Sootiness| Benzaldehyde| Flammable| Orange| Sooty| Acetaldehyde| Moderately flammable| Blue| Very sooty| Cinnamaldehyde| Very flammable| Orange| Extremely sooty with black residue| Sample Calculations: V benzaldehyde = mol benzaldehyde ? MW benzaldehyde ? 1/? benzaldehyde V benzaldehyde = (0. 03 mol)(106. 12 g/mol)(1. 00 mL/1. 0415 g) V benzaldehyde = 3. 06 mL V acetaldehyde = mol acetaldehyde ?MW acetaldehyde ? 1/? acetaldehyde V acetaldehyde = (0. 03 mol)(44. 05 g/mol)(1. 00 mL/0. 788 g) V acetaldehyde = 1. 68 mL Theoretical yield = mol cinnamaldehyde ? MW cinnamaldehyde ? 1/? cinnamaldehyde Theoretical yield = (0. 03 mol)(132. 16 g/mol)(1. 00 mL/1. 05 g) Theoretical yield = 3. 776 mL %Yield = (3. 46 mL/3. 776 mL) ? 100% %Yield = 91. 6% Maximum loss by solvation V cinnamaldehyde = ? cinnamaldehyde ? solubility in H2O ? V water V cinnamaldehyde = (1. 00 mL/1. 05 g)(4. 09? 10-4 g/mL)[9. 00 mL+(0. 030 mol)(18. 016 g/mol)](1. 00 mL/g) V cinnamaldehyde = (1. 00 mL/1. 05 g) (4. 09? 0-4 g/mL)(9. 54 mL) V cinnamaldehyde = 3. 72? 10-3 mL %Loss by solvation = (V cinnamaldehyde lost/ Theoretical yield) ? 100% %Loss by solvation = (3. 72? 10-3 mL/3. 776 mL) ? 100% %Loss by solvation = 0. 098% V. Discussion Cinnamaldehyde, cinnamic aldehyde or 3-phenyl-2-propenal is the dominant component of cinnamon oil, extracted from several species of Cinnamomum (C. verum, C. burmanii, C. cassia), under the family Lauraceae, a group of evergreen trees. Cinnamon bark (particularly C. verum) yields 0. 4-0. 8% oil, which contains 6 0-80% cinnamaldehyde (List and Horhammer; Masada; Ravindran qtd. rom Khan and Abourashed, 2011), which was first isolated in 1834 by Dumas and Peligot (Attokaran, 2011). It has been proven that cinnamaldehyde from cinnamon oil has a very high potency in the field of medicine, aside from its well known role in the cooking and baking, specifically as spice, odorant and colorant. Several researches have explained and proven the anti-diabetic properties of cinnamaldehyde (Babu, Prabuseenivasan and Ignacimuthu, 2006); also, studies have shown the antimicrobial activity of cinnamaldehyde against Salmonella typhimurium and Bacillus subtilis (Council of Europe, 2008).Cinnamaldehyde has been proven to inhibit microbial growth of opportunistic human pathogenic fungi and various bacteria (Khan and Abourashed, 2011). Though effective approaches in the isolation of cinnamaldehyde from cinnamon oil from quills, low amounts of pure cinnamaldehyde can only be obtained from effective separation proc esses. Due to this demarcation in the discovery and investigation of other potential medicinal and non-medicinal values of cinnamaldehyde, chemists have also developed synthetic procedures to obtain high amounts of pure cinnamaldehyde, one of which is the mixed aldol condensation of benzaldehyde and acetaldehyde.The synthesis of cinnamaldehyde through mixed-aldol condensation was done by mixing, in a cooled microreflux, benzaldehyde, portions of 15% sodium hydroxide solution and acetaldehyde, added in a dropwise manner, and then refluxing the mixture for 15-20 minutes. Isolation of the synthesized cinnamaldehyde was done simply by separating the water insoluble cinnamaldehyde layer from the aqueous layer. Aldol condensation is the reaction of aldehydes and/or ketones leading to the formation of ? -hydroxyaldehydes (aldols) or ? hydroxyketones (ketols), also known as the aldol addition, accompanied by the removal of water molecule (dehydration) from these compounds result finally to enals (? , ? -unsaturated aldehydes) or enones (? , ? -unsaturated ketones) (Moore and Langley, 2010; McMurry and Simanek, 2008; Fox and Whitesell, 2004). Aldol additions are due to the reaction of enolate ions of carbonyl compounds (from the reaction of acidic ? -hydrogen atoms of aldehydes and ketones with bases) with the electrophilic centers of other carbonyl compounds.Dehydration, which can be spontaneous due to formation of a more conjugated system or promoted by heating, then leads to the generation of the ? , ? -unsaturated carbonyl compounds as the final product of the aldol condensation (McMurry and Simanek, 2008; Fox and Whitesell, 2004). Aldol condensations can be classified as simple and mixed-(or cross-) aldol condensation. The difference between the two classifications is that simple aldol condensation utilizes only one aldehyde or ketone substrate while the mixed-aldol condensation uses two different carbonyl compounds as the substrate for the reaction (Fox and White sell, 2004).The mixed-aldol condensation was type of reaction employed in the experiment; however, simple aldol condensation, also known as self-condensation was one of the expected side reactions in the conducted study. The general equation for the synthesis of cinnamaldehyde was: The mechanism of the synthesis reaction can be proposed as: 6. Formation of ethenolate ion nucleophile 7. Aldol addition: Formation of 3-hydroxy-3-phenylpropanal 8. Dehydration: Formation of cinnamaldehyde The initial step done in the experiment was combining 3. 06 milliliter benzaldehyde with three 3. 0 milliliter portions of 15% sodium hydroxide with dropwise addition of 1. 68 milliliter acetaldehyde while swirling the mixture, which was in the microreflux, dipped in an ice bath. Benzaldehyde, followed by 3. 00-milliliter portion of 15% sodium hydroxide solution, was first put into the microreflux instead of the acetaldehyde to prevent acetaldehyde from undergoing self-condensation with the following ge neral equation: Compared to acetaldehyde, benzaldehyde has no 3 ? -hydrogen atoms, which can react with the nucleophile, hydroxide ions, to form a strong nucleophile, the ethenolate ion.Ethenolate ions can attack acetaldehyde instead of attacking benzaldehyde. Thus, benzaldehyde, which can remain as it is in sodium hydroxide, was put in first until the formation and attack of the nucleophile, which was formed right after acetaldehyde was dropped into the reaction mixture. The following is the mechanism of the self-condensation of acetaldehyde, which was minimized by the procedure carried out: Addition of 3. 00-milliliter portions of 15% sodium hydroxide solution, a dilute base, was done to compensate for the combination of benzaldehyde and sodium hydroxide, before adding acetaldehyde.Benzaldehyde reacts with strong, concentrated bases to form benzenecarboxylate and hydroxymethylbenzene; this is known as the Canizzarro reaction. Canizzarro reaction (mechanism shown below) was minimiz ed by the addition of the strong base in small portions, before adding the acetaldehyde, and using a dilute solution of it. Cooling of the mixture in ice bath was done to favor the reaction aldol condensation of benzaldehyde and acetaldehyde, a spontaneous reaction due to the higher degree of conjugation of the product, while disfavoring the self-condensation of acetaldehyde, a heat-requiring reaction (Fox and Whitesell, 2004).Dropwise addition of the enolizable compound, acetaldehyde, was performed to minimize the drastic formation of ethenolate ions while unreacted acetaldehyde molecules still exist in the mixture. The phenomenon was prevented since it would have entailed the self-condensation of acetaldehyde, which could have caused lower yield in the experiment since the reagent would have been consumed in the unnecessary reaction just stated. The microreflux was shaken while the mixture was still being prepared to distribute the ethenolate ions formed though the mixture for the m to react with the electrophile, benzaldehyde.This procedure was also done to minimize the possibility of the self-condensation of acetaldehyde since the ethenolate ions generated were expected to have reacted with benzaldehyde since they were distributed with the aid by shaking before the next drop of acetaldehyde came in contact with mixture. Furthermore, since the reaction mixture was cold, the reaction was expected to be slow; thus, shaking can compensate for the slow movement of molecules and ions in the mixture by somehow supplying the energy needed for the slow-moving benzaldehyde molecules and ethenolate ions to collide.Refluxing was done to: (1) react the still unreacted benzaldehyde molecules and ethenolate ions; and (2) promote the dehydration of the 3-hydroxy-3-phenylpropanal to finally form the 3-phenyl-2-propenal or the cinnamaldehyde. Refluxing intimately mixes substances by increasing the contact between the reactant particles through boiling and evaporation, follow ed by the condensation in the reflux condenser (due to the removal of heat by the cold water flowing in the condenser) and restoration of the synthesized compound and the little (expected) amount of the unreacted reagents on their original vessel (Mayo, Pike and Forbes, 2001).Refluxing the mixture was very advantageous to the conducted experiment since it ensured higher yield and faster dehydration of the 3-hydroxy-3-phenylpropanal, though the stated reaction was expected to be spontaneous due to the higher degree of conjugation of the product (3-phenyl-2-propenal) compared to the 3-hydroxy-3-phenylpropanal. The synthesized cinnamaldehyde was readily separable (solubility of cinnamaldehyde in water=4. 09? 10-4gram/milliliter) with the lower aqueous layer; however, cooling of the mixture was done first to decrease the solubility of the cinnamaldehyde to achieve higher recoverable amount of the product.Liquid-liquid extraction to recover the solvated cinnamaldehyde was not done since the maximum amount of solvated cinnamaldehyde was just 0. 098% of the theoretical yield (see Sample Calculations), thus the recovery of such little amount of product would be wasteful in terms of effort and reagents. Graduated cylinder was used directly as the receiver of the organic layer separated to determine right away the amount of synthesized cinnamaldehyde. The determination of the amount of product in this kind of manner was performed to minimize the loss of products due to the adherence of the very viscous product on the sides of different containers.The amount of the synthesized cinnamaldehyde was found to be 3. 46 milliliter, 91. 6% of the theoretical yield which was computed as 3. 776 milliliter. Possible sources of error in the experiment were: the losses of minimal amount of reagents due to their adherence on the sides of the Pasteur pipets and 50-milliliter beakers; and the losses of the synthesized cinnamaldehyde caused by its adhesion on the sides of the microreflux , surface of the boiling chip and the inside surface of the separatory, caused by the high viscosity of cinnamaldehyde.The lack of further purification process on the cinnamaldehyde, which could still contain traces of benzaldehyde, acetaldehyde and other side products, could also be a factor, leading to the incorrectness of the results of the experiment. The synthesized cinnamaldehyde was expected to be constituted of the cis- and trans- diastereomers; however, it was expected that the trans-isomer was the major component of the product. The reason for the claim was that higher possibility of existence of its trans-isomer-forming transition state conformation compared to the cis-isomer-forming transition state conformation.Elimination to a trans double bond from the staggered conformation of the 3-hydroxy-3-phenylpropanal transition state, wherein the carbonyl group and the phenyl group are in the anti position to minimize the steric effects on the molecule, was still favored, thou gh the carbonyl group is relatively small, compared to the energetically less stable gauche conformation (due to steric interactions of the carbonyl group and the large phenyl group) of the 3-hydroxy-3-phenylpropanal, which can cause the cis-isomer formation (Carey and Sundberg, 2001). (a)(b) Figure 1.Balls and sticks representation of 3-hydroxy-3-phenylpropanal in the conformations for the formation of (a) trans-cinnamaldehyde and (b) cis-cinnamaldehyde. Carbon 2 shadows carbon 3 to show the anti-conformation in (a) and the gauche conformation in (b) of the phenyl and the carbaldehyde groups. Further proof that the formation of the trans-cinnamaldehyde was favored in the reaction was the coplanar arrangement of the highly conjugated aldol condensation product. According to Fox and Whitesell (2004), extended conjugation of the benzene ring with the alkene double bond and carbon-oxygen double bond of the carbonyl group in the ? ? -unsaturated aldehyde product leads to the flat, copla nar arrangement of the product. The p orbital overlap of extensive ? system of the carbonyl group and the alkene is greatest as the ? systems arrange in a single plane, which leads to higher stability of the molecule in terms of the conjugation present. Having a flat product would cause the increased torsional strain on the molecule due to the very close distance of the carbonyl group and the benzene ring. Therefore, cis-benzaldehyde, given the stated situation, is highly unstable and is not preferentially formed over trans-benzaldehyde. (a) (b) Figure 2.Balls and sticks representation of (a) trans-cinnamaldehyde and (b) cis-cinnamaldehyde, viewed at different perspectives to show the differences in the flatness of the two molecules that contribute to their stabilities. Possible side reactions in the experiment conducted were the self-condensation of acetaldehyde and Canizzarro reaction as previously stated along with the preventive measures exercised to minimize their occurrence. S elf-condensation of acetaldehyde was expected to be greatly minimized by the procedure employed and the fact that it is energetically unfavorable, according to Fox and Whitesell (2004).Furthermore, even if the reaction took place, it would have been very minimal since it is a reversible reaction, which was competed with a more favorable reaction that is followed by an irreversible somehow spontaneous dehydration reaction. Depletion of the ethenolate ions (due to the consumption in the addition of benzaldehyde and ethenolate ions, then conversion of the intermediate to cinnamaldehyde) causes the competing self-addition of acetaldehyde to proceed backwards, forming back the acetaldehyde and ethenolate ions, which can be consumed in the aldol condensation of cinnamaldehyde and acetaldehyde.Simple distillation was done to determine the boiling point of the synthesized cinnamaldehyde; however, decomposition was observed in the middle of the procedure, causing the failure of the melting p oint determination attempt; but supported that it was possible that cinnamaldehyde. The observed decomposition can be attributed to the instability of cinnamaldehyde, usually denoted by thickening and decomposition, when exposed for a long time to air at elevated temperatures but lower than its boiling point (>70 °C) (Gholivand and Ahmadi, 2008).Decomposition of natural cinnamaldehyde, however, is not observable in baking and cooking due to the presence of eugenol impurities on cinnamon oil, which has antioxidative properties that protect cinnamaldehyde from heat-induced decomposition (â€Å"Cinnamaldehyde Content†). The chemical tests performed were reaction with nitric acid, formation of the sodium bisulfite addition complex and derivatization with 2, 4-dinitrophenylhydrazine.Reaction with nitric acid is a test for the differentiation of aromatic and aliphatic aldehydes. Aromatic aldehydes undergo nitration with concentrated nitric acid under normal conditions. Positive t est results can are color changes and/or heat production. The general equation for the nitration of aromatic aldehydes is: Results of the reaction with nitric acid were shown in Table 4. Figure 3. Test results for the reaction of nitric acid with acetaldehyde (left), benzaldehyde (middle) and cinnamaldehyde (right).Positive test results were observed with benzaldehyde and with cinnamaldehyde by the production of colored mixtures, yellow and brown, respectively, accompanied by heat production as shown by the following specific mechanism: 1. Formation of nitrosonium ion 2. Electrophilic addition of the nitrosonium ion to the aromatic aldehyde (a) Cinnamaldehyde Ortho attack Para attack (b) Benzaldehyde (Meta attack) (c) Acetaldehyde Reaction with alcoholic sodium bisulfite solution is a confirmatory test for aldehydes and ketones, having the following reaction and mechanism: Mechanism:Results of the reaction of the compounds with alcoholic sodium bisulfite solution were listed in Tabl e 4. Positive results were observed with acetaldehyde, benzaldehyde and cinnamaldehyde, which were denoted by the formation of transparent accumulation which turned to white precipitate, white precipitate and brown precipitate, respectively. Figure 4. Test results of the reaction of alcoholic sodium bisulfite with cinnamaldehyde (left), benzaldehyde (middle) and acetaldehyde (right). Sodium bisulfite addition complexes were the observed precipitates of the following reactions:Derivatization with 2, 4-dinitrophenylhydrazine was done to support the identity of the cinnamaldehyde by the determination of the melting point of the hydrazone formed in the derivatization since the boiling point of the cinnamaldehyde was impractical to measure given that it is relatively high and the product, being impure can undergo decomposition. Derivatization with 2, 4-dinitrophenylhydrazine was performed by dissolving the test compound (cinnamaldehyde, acetaldehyde and benzaldehyde) in 4. 00 milliliter of ethanol and adding 3. 0 milliliter 2, 4-dinitrophenylhydrazine solution. The formed precipitate was then filtered and then recrystallized using minimum amount of 95% ethanol solution. The general equation and the mechanism of the reaction can be proposed as: Mechanism: Results of the derivatization, with 2, 4-dinitrophenylhydrazine, were shown in Table 5. The following are the equations for the derivatization of each aldehyde with 2,4-DNP in the experiment: Colors of the derivatives obtained were qualitatively different due to the differences in their degrees of conjugation.Decomposition of the cinnamaldehyde hydrazone was observed, which hindered the determination of the melting point of the hydrazone. Deviations from theoretical melting point values of the two other hydrazones were observed on the experimental melting points gathered. The observed discrepancies maybe ascribed to the efficiency of the Fisher-Johns melting point apparatus and/or the quality of the reagents (benza ldehyde, acetaldehyde and 2, 4-dinitrophenylhydrazine) used.To compensate for the failure in the melting point determination of the cinnamaldehyde hydrazone, the RGB (Red, Blue, Green) values or the web color keywords used by computer monitors to generate colors (McFarland, 2009), of the three hydrazones were determined and tested for significant differences using Analysis of Variance (ANOVA). Figure 5. Isolated and purified hydrazones of benzaldehyde (left), acetaldehyde (middle) and cinnamaldehyde (right). Mean RGB values obtained for cinnamaldehyde, acetaldehyde and benzaldehyde were shown in Table 5.Results of the Analysis of Variance revealed significantly differences among the red values and among the green values of the three hydrazones and no significant differences among the blue values of the hydrazones. Having significantly different values on at least one of the RGB values proves that the composition of the hydrazones was significantly different, thus implying that the p robable presence of benzaldehyde and acetaldehyde in the product was negligible and that cinnamaldehyde can be the compound present.Results of the combustion test were shown in Table 6. Combustion is a chemical reaction between a substance and oxygen that proceeds with the evolution with heat and light as flame (Stoker, 2009). It can be complete, where all of the substance totally undergoes combustion with carbon dioxide and water as the product (general) or incomplete, caused by several factors, which brings about carbon monoxide and elemental carbon formation (soot).Observed differences in the sootiness of acetaldehyde, benzaldehyde and cinnamaldehyde were due to the differences in the number of carbon atoms and the differences in the degrees of unsaturation of the molecules of each of the compounds. Incomplete combustion is generally observed in long chain hydrocarbons and other organic compounds given that oxygen is limited (Johnson, 1999; Macomber, 1996) since oxygen is consume d along with the carbon of the organic compound to produce carbon dioxide while hydrogen atoms are utilized, also along with oxygen, to produce water.Furthermore, unsaturated organic compounds (having as much carbon-carbon double bond) favors incomplete combustion since the number of carbon atoms is relatively higher than the number of hydrogen atoms; excess carbon atoms cannot be used up in the combustion process to produce carbon dioxide (when oxygen supply limited) and thus soot forms (Lister and Renshaw, 2000). It has been show in the balanced equations of the combustion each compound that cinnamaldehyde requires the highest amount of oxygen, followed by benzaldehyde and, lastly, by acetaldehyde.Given that, in the combustion test conducted, oxygen supply was almost uniform among the three, soot formation was predicted to be observed more prominently on cinnamaldehyde (product), followed by benzaldehyde and lastly by acetaldehyde due to the amount of carbon atoms and the relative number of unsaturations on each molecules. The same arrangement was also the experimental arrangement of the compounds with respect to the observed degrees of sootiness after the carried out combustion test.The structure of cinnamaldehyde was supported by the positive reaction of cinnamaldehyde with nitric acid and with alcoholic sodium bisulfite. Though it can be inferred that the detected compound can also be benzaldehyde, the cinnamaldehyde color (yellow to brown), viscosity and the cinnamon aroma of the compound (which are qualitatively different from the color, viscosity and odor of benzaldehyde), the characteristic decomposition of cinnamaldehyde below its boiling point and the results of the combustion test can be used as further evidence of the identity of the compound produced.Possible sources of error in the experiment were the quality of the reagents used, intervals of dropping acetaldehyde on the mixture, lack of further purification process, lack of more evident physic al and chemical characterization method for the product, efficiency of the melting point apparatus utilized and the storage of cinnamaldehyde product for too long prior to derivatization. I. Summary and ConclusionThe special synthesis experiment, entitled â€Å"Mixed-Aldol Condensation: Synthesis of Cinnamaldehyde†, was conducted to synthesize cinnamaldehyde from the base-catalyzed mixed aldol condensation of benzaldehyde and acetaldehyde; and characterize the synthesized product using its boiling point, results of simple chemical tests and derivatization reactions, along with the determination of the melting points of the hydrazones and comparison of the hydrazones using their RGB values.The synthesis of cinnamaldehyde through mixed-aldol condensation was done by mixing, in a cooled microreflux, benzaldehyde, portions of 15% sodium hydroxide solution and acetaldehyde, added in a dropwise manner, and then refluxing the mixture for 15-20 minutes. Isolation of the synthesized c innamaldehyde was done simply by separating the water insoluble cinnamaldehyde layer from the aqueous layer. Determination of the volume of the synthesized substance was then performed.Chemical test carried out were test for aromatic ring (reaction with nitric acid), test for aldehydes (reaction with alcoholic sodium bisulfite) and derivatization with 2, 4-dinitrophenylhydrazine while the physical characterization test done were boiling point determination using simple distillation and melting point determination of the derivatized hydrazones. RGB values of the isolated and recrystallized hydrazones were obtained and tested for significant differences using Analysis of Variance (ANOVA). It was shown that positive test results were exhibited by cinnamaldehyde and benzaldehyde in their reactions with nitric acid.It was also shown that positive test results were displayed by cinnamaldehyde, benzaldehyde and acetaldehyde in their reactions with alcoholic sodium bisulfite. The boiling po int of the isolated product and the melting point of the cinnamaldehyde hydrazone were not obtained due to the decomposition of the stated compound. However, RGB values of the hydrazones were obtained. Results of the Analysis of Variance of the RGB values of the hydrazones revealed significantly differences among the red values and among the green values and no significant differences among the blue values of the hydrazones.Based on the results, it can be concluded that that synthesized product was different from the starting materials and that it was possible that the product was cinnamaldehyde due to the highly colored hydrazone formed. Though chemical tests were successfully done, boiling point determination of the product and melting point determination of its hydrazone were unsuccessfully performed due to the decomposition of both product and its hydrazone; however, chemical tests done and physical properties exhibited by the compound were considerable as enough indicant of the identity of the compound.Based on the readily perceivable physical characteristics of the compound produced and the results of the chemical tests performed and observed, it can be concluded that the synthesized compound was genuinely cinnamaldehyde. Based on the results of the experiment, it was proven that cinnamaldehyde, constituted primarily of trans-cinnamaldehyde, with a percent yield of 91. 6%, was successfully synthesized using the described procedure of the student.Furthermore, the procedure constructed and performed was proven to have minimized the possible side reactions which could have impeded the yield, physical properties and authenticity of the executed chemical tests. Possible sources of error in the experiment were the quality of the reagents used, intervals of dropping acetaldehyde on the mixture, lack of further purification process, lack of more evident physical and chemical characterization method for the product, efficiency of the melting point apparatus utili zed and the storage of cinnamaldehyde product for too long rior to derivatization. II. References ABOURASHED EA and KHAN IA. 2011. Leung’s Encyclopedia of Common Natural Ingredients: Used in Food, Drugs and Cosmetics. Germany: J. Wiley and Sons. ATTOKARAN M. 2011. Natural Food Flavors and Colorants. Germany: J. Wiley and Sons. BABU P, PRABUSEENIVASAN S and IGNACIMUTHU S. 2006. Cinnamaldehyde: A Potential Antidiabetic Agent. Phytomedicine. 1:15-22. CAREY FA and SUNDBERG RJ. 2001. Advanced Organic Chemistry Part B: Reactions and Synthesis. 4th Ed. USA: Plenum Publishers. COUNCIL OF EUROPE. 008. Natural Sources of Flavorings. France: Council of Europe. FOX MA and WHITESELL JK. 2004. Organic Chemistry. 3rd Ed. USA: Jones and Bartlett Publishers. GHOLIVAND MB and AHMADI F. 2008. Simultaneous Determination of Trans-Cinnamaldehyde and Benzaldehyde in Different Real Samples by Differential Pulse Polarography and Study of Heat Stability of Trans-Cinnamaldehyde. Analytical Letters. 41: 3324-3341. JOHNSON W. 1999. Invitation to Organic Chemistry. USA: Jones & Bartlett Learning. LISTER T and RENSHAW J. 2000.Understanding Chemistry for Advanced Level. China: Nelson Thornes. MACOMBER R. 1996. Organic Chemistry. USA: University Science Books. MAYO D, PIKE R. and FORBES, D. 2001. Microscale Organic Laboratory: With Multistep and Multiscale Syntheses. USA: John Wiley and Sons, Inc. MCFARLAND, DS. 2009. CSS: The Missing Manual. 2nd Ed. USA: O’Reilly Media Inc. MCMURRY J and SIMANEK E. 2008. Fundamentals of Organic Chemistry. 6th Ed. Singapore: Thomson Learning. MOORE JT and LANGLEY RH. 2010. Organic Chemistry II for Dummies.USA: Wiley Publishing. STOKER S. 2009. General, Organic and Biological Chemistry. USA: Cengage Learning. â€Å"Cinnamaldehyde Content Foods Determined Gas Chromatography-Mass Spectrometry†. Retrieved from APPENDIX A Randomly Selected RGB Values of Different Hydrazones Table 7. Sample RGB values of acetaldehyde, benzaldehyde and cinnamald ehyde hydrazones and their mean values. Sample No. Acetaldehyde| Benzaldehyde| Cinnamaldehyde| | Red| Green| Blue| Red| Green| Blue| Red| Green| Blue| 1| 202| 90| 52| 203| 168| 25| 185| 107| 22| 2| 189| 85| 50| 239| 170| 17| 173| 106| 53| 3| 195| 97| 58| 233| 185| 25| 185| 114| 22| 4| 206| 101| 54| 236| 171| 43| 174| 102| 18| 5| 199| 80| 40| 232| 176| 19| 173| 109| 37| 6| 201| 81| 57| 236| 181| 29| 174| 123| 40| 7| 201| 99| 59| 236| 179| 28| 170| 103| 24| 8| 198| 92| 42| 232| 178| 18| 164| 105| 45| Mean Values (decimal)| 199| 91| 52| 231| 176| 26| 175| 109| 33| Mean Values (hexadecimal)| C7| 5B| 34| E7| B0| 1A| AF| 6D| 21|APPENDIX B Analysis of Variance (ANOVA) of the RGB Values of the Hydrazones RED Source| DF| SS| MS| FC| FTAB| Treatment| 2| 12682. 75| 6341. 375| 90. 76086216| 3. 466800112| Error| 21| 1467. 25| 69. 86904762| | | Total| 23| 14150| | | | GREEN Source| DF| SS| MS| FC| FTAB| Treatment| 2| 32406. 08| 16203. 04| 328. 5193| 3. 4668| Error| 21| 1035. 75| 49. 32143| | | To tal| 23| 33441. 83| | | | BLUE Source| DF| SS| MS| FC| FTAB| Treatment| 2| 2888. 083| 1444. 042| 1. 039985| 3. 4668| Error| 21| 29158. 96| 1388. 522| | | Total| 23| 4899. 958| | | |

Monday, September 16, 2019

Bead Bar Network Paper

Bead bar specializes in making beads jewellery for the customers. They have three divisions’ namely studios, franchises and bead bar on board that requires to be connected for synchronization of activities. It is required to create a network design and the appropriate topology which would be of good to the company for communicating the requirements and sharing information to keep in synchronization with the current state of the business.The network topology would be discussed which would make the communication feasible and possible with regard to all the physical and network barriers.The network design is the architecture which would give a clear picture of the interconnection of devices and the departments to facilitate the sharing of business information. The final section discusses the pros and cons of the proposed topology in question. Background information of Bead Bar: Bead Bar as an organization is departmentalized into three divisions namely studios, franchises and bea d bar on board. The present situation does not create a network among the divisions and thus creates inconsistencies in information sharing and knowledge about the company as a whole, at any given point of time.A computer network would facilitate the process of getting the entire job done for every customer at a lesser time than usual. It would make sure that information regarding ones choice and preferences would be catered and stored for future benefits. The network would enrich the communication among the divisions which in turn would facilitate greater workability and functionality in operation. Recommendation overview: The network recommendation for the Bead Bar could be capitulated into LAN and WAN.The internal network within the divisions would have a LAN network; however the inter-department communication would be made possible using WAN. Creating a LAN would create an internal network which can be made possible for connecting the personnel in the very department itself. For the LAN network, switches and hubs are used for connecting the sole division itself and for WAN routers are used for interconnecting each other. Explanation of the Network Design: All the three divisions of the company are interconnected using the network cable in a wired network using both LAN and WAN.Using LAN the computers are interconnected within the office or building premises so that all the employees are able to get information on demand. The head office has a central server where all the information us stored in the database. The other offices are also networked using the LAN technologies. The switch is two layered and used to take care of the storing and forwarding mechanism as stated in Tanenbaum (2003). Using WAN the network connections are using the public data services and get connect to internet and using VPN technology, using login credentials.Network Topology: The LAN technology follows a star topology with hubs. The interconnecting devices used facilitate the use and share of information. The hubs are used to store and forward the information. Star topology is used which would facilitate the efficient use of network resources (Star Topology). Advantages of the architecture: †¢ Having a star topology would make it less expensive in relation to mesh topology. †¢ In a star, each device needs only one link and one I/O port to connect it to any number of other devices (Forouzan, 2003).†¢ It makes the star topology easy to install and reconfigure with time and need. †¢ Star topology requires far less cabling and any additions, deletions and moves involve only one connection between that device and hub. †¢ It is quite robust in nature; if one link fails the others do not cease to operate. This factor also enhances the fault identification and fault isolation. †¢ As long as the hub is in working condition, it is quite easy to monitor link problems and bypass defective links. †¢ A WAN is used for connecting to the i nternet so as to get connected with the other departments across geographic locations.†¢ VPN technology is used to validate the user of the network so that the connection established is secure in nature. It would use the login name and password facilities to enable a secure way of handling data. †¢ A database server is used so that all the information is stored centrally and all the users access the information using their credentials. †¢ The VPN also makes sure that not all users would be able to access all for ms of data an data security and integrity is restricted using the login credentials. Drawbacks of the architecture:†¢ The VPN technology would be quite expensive to implement (VPN). †¢ The cost of switches and hubs would be costly. †¢ The use of websites where all the computers are used for accessing directly the internet would have made the architecture more accessible but security would have been less. Even the cost of web server would be incu rred quite high. Conclusion The primary objective to connect has been taken into account and the network topology has been discussed to give shape to the entire network for interconnecting with the various divisions in the company.The network architecture and the drawbacks associated with it are thoroughly examined for its feasibility and communication. The network topology would have an upper hand on the drawbacks and is quite sufficient to inter-connect the enterprise to capitalize on its resources. References/ Bibliography Forouzan A. Behrouz (2003). TCP/IP Protocol Suite, second edition. Tata McGraw Hill. Physinfo (2006). Network Topologies. Retrieved October 26, 2007 from http://physinfo. ulb. ac. be/cit_courseware/networks/pt2_1. htm