How Do Pollution Affect The Life - 941 Words

How do pollution affect the life in earth? The global warming is a gradual increase in the overall temperature of the earth s atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants. The main cause of pollution is the human being. The contamination caused damage not only in animals and plants but also in the same man. In their attempt to progress and have an easier and bearable life has invented and used products that are destroying stability and life on the planet. Some of the major causes of pollution are: Carbon dioxide emissions from fossil fuel burning power plants, carbon dioxide emissions from burning gasoline for transportation, the unfortunate causes are pollution of air, water, and soil. Turn this pollution causes illness and death to the flora, fauna, and humans. The increase in population in the urban areas has produced an uncontrolled industrial development causing serious environmental problems. In their quest to live a comfortable life without complications humans have created harmful based products based on contaminants. One of the main pollutants are: production of coal, oil and natural gas which are present in industrial plants and everything that the human has created. Each year chemical plants thrown away tons of toxic products. In the article palnetsave Derek Markham said â€Å"Our ever increasing addiction to electricity from coal burning power plants releasesShow MoreRelatedPollution Is A Serious Problem?1320 Words   |  6 PagesLutalo English 1106 6 March 2016 pollution in china In the paper, I argue that what types of pollution in china by introducing the situation and problems in china. Following the development of economic and scientific, China is playing a very important role in the international arena. Increasing the number of people become rich. they can buy the new car, big house, and expensive clothes. In many people s opinions that China is becoming strong and rich. But they do not know China is also facing aRead MoreWater Pollution Is A Concern1702 Words   |  7 PagesWater pollution is the where water bodies such as lakes, oceans, rivers and so on are affected by pollutants which are discharged in water masses either directly or indirectly. Pollutants include toxic waste materials from factories, spillage of oil from oil tankers, pesticides and herbicides from farms, soil erosion which is usually deposited in a water source, sewages from homes and septic tanks spill off nearby water sources and the list is endless. These water pollutants can be categorizedRead MoreOcean Pollution And The Ocean1673 Words   |  7 Pagesoutcome of food and medicine resources from the ocean if plastic pollution is not prevented or minimized? We as humans, need food and most times medicine to survive and to be healthy. Some of the resources we need for food and medicine come from the ocean. What will happen to our resources if we cannot prevent or at least minimize plastic pollution in the ocean? This paper will be about what experts say about ocean pollution, and how we can prevent it. For the first part of this paper you will seeRead MoreEssay On Marine Pollution1058 Words   |  5 Pagescaused by pollution. It feels as if the seal has just giving up and it’s just accepting to die there. It’s almost seems that we can feel the sadness projecting to us. This image makes me think how many aquatic life’s must die because of our mistake. I chose this image, so people can see the real damage that we cause when we liter on the beach. Based on this image I would like to focus on 1. Who is getting affected by the marine pollution? 2. What are the real causes of the marine pollution? 3. WhyRead MoreWater Pollution Is Bad For The Environment1252 Words   |  6 PagesPollution, of any kind is bad for the environment, but water pollution is bad for the environment and affects people. Our water quality is affecting positano and it s people. The article â€Å"Whale Facts† state s â€Å" Water pollution has become a growing concern over the last century as more and more waste is being disposed of in our oceans, rivers and lakes.†(Whale Facts). Water pollution is taking over our oceans, rivers, and lakes which are our primary drinking source. All the water that we drinkRead MorePollution And Its Effects On The Environment973 Words   |  4 Pages Pollution As a society, we have come to understand that pollution is the process of discharging harmful substances into our atmosphere, water or soil. There are campaigns all across the world educating us to the different types of pollution. Humankind has become more aware of the rising problems with pollution and recycling is constant in most households. We know about the effects that pollution has on the environment, but how do the types of pollution affect each other?Read MoreThe Effects Of Air Pollution On The Environment Essay755 Words   |  4 PagesBackground and Analysis Air pollution is the infiltration of chemicals or toxic molecules into the atmosphere. In the global context many countries including China, the United States, Mexico, and others are haunted by pollution in the air. However each has a certain degree of air pollution different from the other. Air pollution kills animals and plants by intoxicating our bodies with harmful bacteria and chemicals. Unless our bodies become immune or we learn to clear the pollution earth s ecosystem willRead MoreAir Pollution Essay1365 Words   |  6 Pages Air Pollution: How it can affect children and adults Naomi Harvey South University Abstract One of the main problems in the environment is air pollution. Texas has a project in plan to help the air from being polluted. Children and adults are being affected on a daily basis by the air being polluted. However, it is known that children are more affected by the polluted air than adults. Enforcement laws are made to each state dealing with the air pollution and consumers. Air pollutionRead MoreThe Effects Of Air Pollution On Our Health And Sustainability1408 Words   |  6 Pageshealth. Air pollution is a large problem that exists in the United States and affects all of us. However, the challenge that we as American’s face is the inescapable necessities of modern life (driving to work, cooking food, etc.). These technologies are directly linked to air pollution and therefore affect our health and sustainability. BusinessDictionary.com defines air pollution as, â€Å"the condition in which air is contaminated by foreign substances, or the substances themselves.† Air pollution is somethingRead MoreConservation Of The Environment : Sea Deoxygenation, Pollution, And The Loss Of Biodiversity1034 Words   |  5 Pagesimportant global issue is the lack of the preservation of the environment. The lack of preservation of the environment has led to ocean deoxygenation, pollution, and the loss of biodiversity. Ocean deoxygenation is causing many issues in marine life as well as death. The increase in pollution is placing many health risks to both land and marine life. The loss of biodiversity causes all living beings to be more vulnerable since biodiversity has many benefits. Firstly, the lack of preservation of

The President Of The United States - 1532 Words

Rand Paul, the son of famous libertarian Ron Paul presidential candidate, and Kentucky senator began running for the position of president of the United States of America, on April 7th 2015 under the Republican Party. He ran under the slogan Defeat the Washington machine. Unleash the American dream, and promised to be a non-establishment Republican president. Rand Pal is by far the best candidate for the presidency in all fields, but most specifically, for our economy, our foreign affairs, and our rights and liberties. The economy is a major part of any presidential campaign, as it should be, since our economy is very weak right now and susceptible to damage that could further bring us into a recession we need a strong president to help†¦show more content†¦He released a plan with a 14.5% flat rate on income that also replaces corporate tax. It would eliminate tax loopholes and other tricks that help big business (Rand Paul Presidential Campaign, 2016/Taxes – Ballotpe dia). Paul’s tax plan would increase our GDP by 13%, create 4.3 million full time jobs, and it would increase after tax incomes for all income groups by 16%, as well as grow the economy about 13% (The Economic Effects of Rand Paul s Tax Reform Plan). Finally Rand Paul released a document listing all the programs that he would cut and how he would stop the government from wasting citizens tax dollars, cutting these programs would save us over 1 billion dollars, all the programs listed can be researched and found out to be not needed, for example our tax dollars are going towards, â€Å"researching the effectiveness of golf equipment in space† which cost us 15 million dollars (Airing of Grievances 2015). As important as our economy is, a presidential candidate has to be able to defend us from attacks, and Rand Paul has views different from many Republicans on how to do just that. Our national security and foreign policy are very important, since the safety of the citize ns and our interests abroad are fundamental issues and must be ensured by the

Voucher Hippo Creek Bar Grill Three-Course Dinner for Two People Free Essays

Voucher Hippo Creek Bar Grill Three-Course Dinner for Two People with a Glass of Wine or Middy Each Voucher value: $164. 00 Voucher code: 0050027N3Q Valid from 11. 02. We will write a custom essay sample on Voucher Hippo Creek Bar Grill Three-Course Dinner for Two People or any similar topic only for you Order Now 2013 to 31. 01. 2014 The merchant: Hippo Creek Bar Grill Shop 55 Waterford Plaza, Cnr Manning Road Kent Street, 6152, Karawara Fine print Security Code: 0D4CBE3659 REF: 716711451 Limit of 1 voucher per person, Max 1 voucher per couple per visit, Purchase 1 additional voucher as a gift, Subject to availability, Blackout period: 1st to 31st December 2013, No refunds if your preferred date is unavailable, Please expect a high demand for weekend bookings, It is recommended to book well in advance, 24-hour cancellation policy or voucher is forfeited, Hippo Creek Bar Grill abides by the Responsible Service of Alcohol (RSA) regulations and has the right to enforce them, Ages 18+ for alcohol consumption, Failure to bring voucher and email confirmation will see ‘voucher discounts’ forfeited and regular pricing will be charged, Not valid on public holidays, Valentine’s Day, Mother’s Day or Father’s Day, Menu is set and cannot be switched or substituted, Not valid with any other discounts, specials or entertainment card, Strictly no telephone bookings, Dine in only, Rules that apply to all deals, How to Redeem, Valid from: 11 Feb 2013, Valid to: 31 Jan 2014, Must book by: 1 Nov 2013, Bookings must be made at least 7 days in advance, Email to book: deals@hippocreek. com. au, State Voucher Code, State Security Code, Present printed voucher and email confirmation on arrival, Valid hours: , – Two-course lunch Thu-Sun 12pm-2pm – Three-course dinner Mon-Thu with a choice of two sittings; 6pm-7. 5pm (must leave by 8:00pm) or 8:30pm-late This is how it works Print voucher Bring along your voucher Arrange an appointment with the deal offerer Redeem and enjoy Any questions? : Email us: http://contact. groupon. com. au, User-ID: 719293573 Right to cancel Once we send you the voucher, you may cancel the transaction at any time within seven working days from the day after the day that you receive the voucher (where a working day is any day that is not a Saturday, Sunday or Australian public holiday). If you do want to cancel, you must do so by informing us you are cancelling through: contact. groupon. com. au al ways provided of course that you have not yet redeemed the voucher. . How to cite Voucher Hippo Creek Bar Grill Three-Course Dinner for Two People, Essay examples

A short story with a twist The Accident. Essay Example For Students

A short story with a twist: The Accident. Essay As Carol stood in the bathroom she knew what the result would be, her hands were shaking as she reached the first step of the stairs. John' she shouted. John came and stood at the bottom of the stairs with a worried look on his face Whats wrong? he asked. By now Carol had already reached the bottom of the stairs, she gulped then said in a quiet voice youre a daddy. The next nine months were to be a test of courage and strength both for Carol and John When the birth certificate came through It read: Twins born to Mr.. ND Mrs.. Walker, iris twin (Emily) born at 6:pm, 1 6th/May/1959, The second twin (Katie) born at 6:pm, 16th/May/1959. The next 18 years brought joy, sadness and grief to the Walker family. At 2 years Emily said her first word sister at 3 years Katie took her first step. It was the afternoon of 1963 the hottest day in the year, Carol was making tea in the kitchen, and John was in the back sunning himself when it happened. We will write a custom essay on A short story with a twist: The Accident. specifically for you for only $16.38 $13.9/page Order now Emily somehow opened the front door for fresh air when Katie came running by her, straight onto the road, she fell over and twisted her ankle, Just then David Burns came shooting round the corner, she screamed out for her sister but It was too late, David slammed on the brakes he was Just too slow, the last words said by Katie were Emily I love you, then he hit Katie. The worst thing was that Emily saw the whole thing, In graphic detail: she ran inside, tears streaming down her face, she ran into the kitchen Mum, Mum! Its Katie, Shes hurt Where is she? On the rood, Oh my lord Carol rushed to the back of the house He leapt out of his sent and ran on to the rood, where Katie was lying, when he held ere she was cold and blood was dripping down her head, he tried resuscitation but it just didnt work, then he Just picked her up and carried her inside. He sat there in shock. He Just kept repeating My Little girl, itll be O. K, daddies little girl Carol called 911 then sot down. Emily Just kept on crying. This went on for 2 years. She blamed herself, she opened the door, if she hadnt opened Katie would be alive. Eleven years later (1974) she got a boyfriend Anthony Phillips (contradictory to popular belief). One stormy night. The night of April 25th 1977. Emily was at home watching Count Drachma when the doorbell rang. She got up, walked over to the door, but Just as she was about to open it, the lights went out. She thought Forget the door, Id better reset the fuse. So she went into the cellar, and reset the fuse. But when she came back upstairs, she felt a breeze, she checked the back door, locked, then she came into the living room, the front door woe wide open. But I distinctly remember not opening it? she utters So she shut the door and sat back down. A few minutes later she heard a creak behind her. Whos there. No one answered, she reported the question Who is there! Then she saw the shadow. She slowly arose from her choir; rushed into the kitchen, slammed the top drawer open, took the largest handiest knife. Just then the shadow reappeared again, suddenly the fuse went out, It went dark, then the figure lurched for her, she plunged the knife in, He fell to the floor, she felt a sharp object scrape against her arm, she reset the fuse. .ua79f658adc5c0d78b5c63a4b1cdb3d96 , .ua79f658adc5c0d78b5c63a4b1cdb3d96 .postImageUrl , .ua79f658adc5c0d78b5c63a4b1cdb3d96 .centered-text-area { min-height: 80px; position: relative; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 , .ua79f658adc5c0d78b5c63a4b1cdb3d96:hover , .ua79f658adc5c0d78b5c63a4b1cdb3d96:visited , .ua79f658adc5c0d78b5c63a4b1cdb3d96:active { border:0!important; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 .clearfix:after { content: ""; display: table; clear: both; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .ua79f658adc5c0d78b5c63a4b1cdb3d96:active , .ua79f658adc5c0d78b5c63a4b1cdb3d96:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 .centered-text-area { width: 100%; position: relative ; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .ua79f658adc5c0d78b5c63a4b1cdb3d96:hover .ctaButton { background-color: #34495E!important; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ua79f658adc5c0d78b5c63a4b1cdb3d96 .ua79f658adc5c0d78b5c63a4b1cdb3d96-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ua79f658adc5c0d78b5c63a4b1cdb3d96:after { content: ""; display: block; clear: both; } READ: Teenage pregnancy EssayThen came back upstairs, it was then she realized it was Anthony. She realized He must hove come around for a chat, and the sharp object I felt, what was it? the end of the armchair. And in a state of shock she phoned the police, give me the police Department please Ill put you through DDCD answered yes. Detective Inspector Walter Charmers of the police department speaking? 1 1 1 Just killed my boyfriend within seconds the police had stormed the house. Emily was arrested: handcuffed and put in a police car. She was driven to the police station. Then she made a statement. And she thought that was it. But it wasnt. Antimonys father and mother decided to press Charges, they thought they had a good case She Just could not believe what as going on. The court dote was set for the 1 lath of October 1977. She turned up 1 oclock sharp. All rise for the honorable Judge White. She rose, the entire ordeal lasted 4 hours, with lawyers verbally bashing the truth into their liking. The Jury left the courtroom, when they re-entered, her heart was racing. 50 beats minute. We find the defendant guilty, of manslaughter and murder. The court room, went quiet apart from the sound of fear and disapproval, I sentence you to 20 years imprisonment, bang the hammer hit the stained wood. She was hauled to her cell. Dark, damp, on her right was a filthy toilet, on her left was a bed extremely uncomfortable and painful, and directly inferno of her was a badly gratified wall, She spent The next 20 years in a rotten run-down prison in scruffy cell 1 with bread nod water every day. Every week and every yew. And with, n those years her father died of cancer and her mother died in o car crash. Finally her triumph, the sweet smell of freedom, filled her lungs. She rushed home to see her parents. But they werent there, she asked her gibbers they died last year, didnt you know? she broke down into tears. she went bock home and wrote a poem: The old days are gone, and I cant bring them back When me and you were close together, All the memories I hove of you ore close to me. Mom + dad She stopped in her local shop for some flowers, but when she went to pay all she got were dirty looks from the customers and, the shopkeeper. Mr.. Jones had always been nice to me. When she paid for the flowers, Mr.. Jones seemed to snatch the money out of her hand. She walked up the street and into the cemetery. The cemetery was dark and cold and looked like it was in a world of its own. She went to the grove laid down the flowers, read the poem and buried it under the gravel, She said her last good-byes and went home, She got a bottle of 100 Aspirin and rote o note I am alone and responsible far my sisters death She lay on her parents bed, opened the bottle and swallowed. Her body began to shake tear come to her eye as she closed her eyes for the last time, sorry Sis Her arm fell off the bed. The bottle fell out of her hand. And the tear ran down her face

Ghetto free essay sample

What is meant by the â€Å"ghetto defense†? Define it in your own words. 2. Reread paragraph 8. Define what Shellow means by the â€Å" ’cultural psychosis â€Å" or â€Å"psychosocial history’ strategy. † What does it have to do with the ghetto defense? 3. What is post-traumatic stress disorder (PTSD)? What causes it? 4. Why do leagal experts worry about the ghetto defense being used and accepted in court cases? What would be the implications? How would it protect the poor instead of the powerful? 5. What are the biggest criticisms of the ghetto defense? . Does Flaherty’s thesis favor the ghetto defense? Is his support sufficient for the reader to accept his viewpoint? Do you agree? Support your points. 4. The ghetto defense suggests that society â€Å"tolerate(s) a situation so hobbling that its victims have become unaccountable for their action†, implying that each of us is responsible for such things a the Los Angeles riots and the living conditions in the ghettos. We will write a custom essay sample on Ghetto or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Do you accept such responsibility. Explain. 5. Reread the last paragraph. Does society have a responsibility to poor children like Morgan? How do you answer Flaherty’s questions?

Why Setting Your Story Matters

Why Setting Your Story Matters Why Setting Your Story Matters Imogen Clark lives in Yorkshire, England with her husband and children.  She also writes books for young teenage girls under the pen name Lucinda Fox. In this article, Imogen talks about how establishing a real sense of setting in her novel improved her story, and even benefitted her marketing strategy.Picture the scene: You've read a great book that you want to share with your friend but your memory is letting you down on the details.â€Å"What's the title?† they ask. Blank. â€Å"Who wrote it?† Nothing. â€Å"Well, where's it set?†And, of course, you remember this because the setting of a book stays with you long after the metadata has faded. This is because it's the setting that takes a reader deep into the world of a novel, creating those vital visual images that allow them to travel with the protagonist. Whether a story is set in the heart of the Amazon jungle, a post-apocalyptic landscape, or on one street in London, the way that setting is described can make all the difference to a reader's experience. "It's the setting that takes a reader deep into the world of a novel." @imogenclark IlkleyBut this is not the side of the town that I wanted to portray in my book. In the novel, my protagonist, Cara, is trapped in Ilkley, forced to care for her terminally ill father whilst her elder brother escapes to London. The twee parts of the town - the areas that attract the tourists - mean nothing to her. Instead, she (and therefore the reader), focus on the darkly ominous moor that rises up like a shadow behind her house. The Ilkley of the book is a dank place where the sky remains resolutely grey.Of course, back in the real world, the sun does occasionally shine in Yorkshire, and I had pangs of guilt at drawing such a bleak picture of my hometown. But I had to remember that I had to see it through Cara's eyes, and not my own. "Authors need to depict a place through their character's eyes, not their own."  @imogenclark I can safely say that as a result of my developmental editor's advice to better establish a better sense of place, my book has immeasurably improved. It sits solidly in its setting and truly belongs there. Giving my book a home has also helped me with the writing and hopefully gives my readers a more satisfactory experience too. If they were to describe my book to their friends they might say, â€Å"Oh, you know. The one that’s set in Ilkley.†Please  share your thoughts, experiences, or any questions for Imogen Clark, in the comments below!Postcards From a Stranger is available in paperback  and on Amazon Kindle.

MIH514 - Cross-Cultural Perspectives Module 2 - SLP Essay - 1

MIH514 - Cross-Cultural Perspectives Module 2 - SLP - Essay Example Culture insists that the eldest male in the family is the valued head of the household and as such must be obeyed (Carahar, 2000); he has important roles and responsibilities of provision for the family in terms of accommodation, protection, decision making, education, love and sustenance. A woman’s role as mother is to manage all matters pertaining to the house, take head place when father is not at home and take responsibility for the care of children; if she works outside the home many of her duties are divided among other family members; in fact the more hours she spends in employment the less she is required to work in the house and the more assistance she gets, mostly in terms of child care and cooking (Norzareen & Nobaya, 2010). The family roles in terms of gender however, are changing with the growing need for women to join the workforce; many Malaysian parents now share responsibilities as breadwinners and keepers of the house. Each supports the other manually, emotionally and socially in order to maintain a secure family unit in today’s Malaysian society (Norzareen & Nobaya, 2010). The workforce in Malaysia is young, well educated and easily trained within the workplace; in fact around 70% are below the age of 35; its increasing economy has created a need for skilled labor that is at most times in short supply and expected to increase because of the transfer to more modern technology and high end products. The unskilled labor shortage is being filled with the importation of migrant workers from neighboring countries (Country Commerce, 2006); in fact the majority come from Indonesia with other large cohorts entering from Thailand, the Philippines, Cambodia, Pakistan, Vietnam, India , Nepal and Bangladesh (Robertson, 2008). The government has strong control over the private sector and has played a key

Sailor Jerry Essay Example | Topics and Well Written Essays - 1000 words

Sailor Jerry - Essay Example Other than modernizing the tattooing industry, Sailor Jerry had a colorful and diverse life and career, which he balanced along with his love for tattooing (Levy 46,47,48). Sailor Jerry had developed an interest in tattooing and started practicing it ever since he was a teenager. The technique of tattooing used by him at that time was the hand-pricking method. Later on, he was taught how to use a tattoo machine by a Chicago tattooist named Tatts Thomas. Under Thomas’s training, Sailor Jerry would usually rehearse tattooing with a machine on drunken people who were brought to him. He kicked off his official career years later in Hawaii, where he opened his first tattoo parlor. Other than tattooing, Sailor Jerry also pursued the occupation of a dockworker in Hawaii, therefore adding some diversity to his life (Demelo 74). Having enlisted in the navy during World War II, Sailor Jerry also served as a merchant marine and so traveled to many places. He often tattooed people, especi ally sailors, at his ports of call. Having been to the Far East, and being exposed to tattoos on other sailors, he developed an interest in Asian imagery. This interest made him incorporate many Asian designs, such as dragons, into his art of tattooing. Besides this, Sailor Jerry was very protective of tattooing, and had a strong concern in developing it as an art form. Moreover, he believed that majority of the American tattooists were ‘greedy, talentless copycats’. As a result, he looked up and kept in touch with tattooists like Paul Rogers and Brooklyn Joe Lieber, who shared his opinion in improving the art of tattooing. Simultaneously, he spoke out against those who he saw as tainting the field through their sly business practices and lack of talent (Demelo 74). Sailor Jerry, on the other hand, seemed to have an excess of talent. A typical Sailor Jerry tattoo was distinguished from other tattoos by its bold and steadfast lines, along with an amazing attention to det ail. For instance, the riggings contained by his clipper ship tattoos were nautically accurate. However, it was only after he opened his last tattoo shop Chinatown, Honolulu that his fascination with the â€Å"Oriental style† of tattooing really flourished. During this time, he started a trade relationship with two tattooists (one was from Japan, while the other from Hong Kong), wherein he would trade American tattoo machines and needles for their advice and designs. From them, he learnt a lot about the ways Japanese used colors, shaded, and made use of the entire body as a canvas (Demelo 74; Sailorjerry.com). However, even though he incorporated some of the Japanese style of tattooing, the style Sailor Jerry used was completely unique. His art of tattooing consisted of the Japanese finger waves, wind bars, and full body tattoos which reflected the history and pop culture of America; the Spirit of ’76, the Alamo, General Custer at Little Big Horn, Rock of Ages, big bus ted mermaids, and many similar designs motivated by North American thinking. These designs were also different from the traditional American style (of unrelated and separate tattoos spread out on the body) because they were larger, fused, and custom made. The incorporation of Japanese styles in Sailor Jerry’s tattoos was sometimes criticized by patriotic Americans. However, Sailor Jerry’s success at improving the tattooing industry made up for

Preparedness Homeland Security 2 Essay Example | Topics and Well Written Essays - 2500 words

Preparedness Homeland Security 2 - Essay Example The New York subway system is governed by the Metropolitan Transportation Authority (MTA). It has 468 stations in its network. It has over 840 miles of track that service approximately 5.1 million passengers per week. In 2007, The New York subway system was ranked number 4 amongst the worlds transit system with a massive 1.563 billion riders per year. In 2009 subways cars were reported to travel 344.5 million miles per week with 8,279 miles per day being covered by 6,380 cars (Subways, p. 1). The subway system is massive and very vulnerable. A transportation system of this size is evidently significant to the operation of New York City on a day to day basis. This is an unfortunate acknowledgement that is apparent in terrorist attacks. Al-Qaeda associates openly plead guilty to plotting severe attacks on the Metropolitan subway system in 2009. The MTA: The MTA has had no reason in the past to afford special conditions on behalf of terrorism. The subway stations have had no need to sanction high end security to avoid bomb attacks. This ultimately makes an attack by suicide bombers an element of surprise. A surprise attack has the quality of being able to do massive amounts of damage with little resources. Being located underground is not a positive outlook when dealing with bomb threats. Bombs have the capacity to cause a massive collapse of the railway structures. Dependant on the type of explosive being used and where these explosives are located in the MTA system, there can be enough collateral damage to corrupt the entire underground network. The major issue that is presented with any public transportation is accessibility. Any local person can use the facilities at any given time. In the case of the New York underground railway terrorists are afforded a twenty-four hour gap to engage in any attack. They have access from any publicly available entrance during the process of each attack. They also have locations to choose from. This

Silver-graphene Oxide Composite for Optical Sensor

Silver-graphene Oxide Composite for Optical Sensor KHOSRO ZANGENEH KAMALI ORIGINAL LITERARY WORK DECLARATION FORM ABSTRACT In this work, a [emailprotected] oxide ([emailprotected]) nanocomposite-based optical sensor was developed for the detection of biomolecules such as dopamine (DA), ascorbic acid (AA), and uric acid (UA). An aqueous solution of [emailprotected] was prepared using a simple chemical reduction method, and it showed a characteristic surface plasmon resonance (SPR) band at 402 nm. The SPR features of the [emailprotected] nanocomposite were used for the detection of DA, AA, and UA. The SPR intensity-based limits of detection (LoDs) of DA, AA, and UA were 49 nM, 634 nM, and 927 nM, respectively. The SPR band position-based LoDs of DA, AA, and UA were 30 nM, 1.64 à ¯Ã‚ Ã‚ ­M, and 2.15 à ¯Ã‚ Ã‚ ­M, respectively. The present optical sensor was more sensitive to DA than to UA and AA. The interactions of the biomolecules with [emailprotected] were studied based on the density functional theory (DFT), and it was found that DA had more interaction than AA and UA. This novel [emailprotected] nan ocomposite is simple to prepare and showed excellent stability and sensitivity toward the detection of biomolecules. The similar material is used for colorimetric detection of Mercury(II) ions (Hg(II)) that is able to show existence of 100  µM Hg(II) ions in solution by naked eyes. The development of this optical sensor for Hg(II) using silver nanoparticles (Ag NPs) is based on the decrement in the localized surface plasmon resonance (LSPR) absorption of the Ag NPs and the formation of silver-mercury (AgHg) amalgam. It is observed that increasing Hg(II) ions concentration in the solution results in the decrease of LSPR intensity and decolouration of the solution. The existence of GO prevents the agglomeration of Ag NPs and enhances the stability of the nanocomposite material, enabling this material to be used in industrial and real sample applications. ABSTRAK Di sini, oksida perak @ graphene (Ag @ GO) berdasarkan nanokomposit-sensor optik telah dibangunkan untuk mengesan biomolekul seperti dopamine (DA), asid askorbik (AA), dan asid urik (UA). Larutan akueus Ag @ GO telah disediakan dengan menggunakan kaedah pengurangan kimia yang mudah, dan ia menunjukkan satu ciri plasmon permukaan resonans (SPR) band di 402 nm. Ciri-ciri SPR daripada Ag @ GO nanokomposit telah digunakan untuk mengesan DA, AA, dan UA. Had keamatan-pengesanan (LoDs) bagi SPR berdasarkan daripada DA, AA, dan UA adalah masing-masing 49 nM, 634 nM, dan 927 nM,. The band SPR berdasarkan kedudukan-LoDS daripada DA, AA, dan UA adalah masing- masing 30 nM, 1.64 uM, dan 2.15 uM. Sensor optik masa kini adalah lebih sensitif kepada DA daripada UA dan AA. Interaksi daripada biomolekul dengan Ag @ GO dikaji berdasarkan ketumpatan teori fungsional (DFT), dan didapati bahawa DA mempunyai interaksi lebih daripada AA dan UA. Novel ini Ag @ GO nanokomposit adalah mudah untuk menyediakan dan menunjukkan kestabilan yang sangat baik dan kepekaan terhadap pengesanan biomolekul.Bahan yang sama telah digunakan untuk pengesanan colorimetric ion Mercury(II), (Hg(II)) yang mampu dilihat dengan kewujudan 100 ÃŽÂ ¼M ion Hg(II) dalam larutan dengan mata kasar. Pembangunan sensor optik bagi Hg(II) menggunakan nanozarah perak (Ag NPS) adalah berdasarkan pengurangan pada penyerapan Ag NPs resonan plasmon permukaan setempat (LSPR) dan pembentukan amalgam perak-merkuri (AgHg). Dapat diperhatikan bahawa peningkatan kepekatan ion Hg(II) memberikan hasil pengurangan pada intensiti LSPR dan perubahan warna. Peningkatan jumlah ion Hg(II) pada satu tahap membawa perubahan dalam morfologi Ag NPs dan pembentukan amalgam AgHg yang mempengaruhi LSPR Ag NPS dan menjadikan perubahan warna pada [emailprotected] Kehadiran GO menghalang penggumpalan Ag NPS dan meningkatkan kestabilan bahan nanokomposit yang membolehkan bahan ini untuk digunakan dalam industri dan aplikasi sampel sebenar. ACKNOWLEDGEMENTS / DEDICATION TABLE OF CONTENTS Table of Contents SILVER-GRAPHENE OXIDE COMPOSITE FOR OPTICAL SENSOR APPLICATIONS ORIGINAL LITERARY WORK DECLARATION FORM ABSTRACT ABSTRAK ACKNOWLEDGEMENTS / DEDICATION TABLE OF CONTENTS LIST OF FIGURES LIST OF TABLES LIST OF SYMBOLS AND ABBREVIATIONS LIST OF APPENDICES CHAPTER 1: INTRODUCTION CHAPTER 2: LITRETURE REVIEW 2.1. Plasmonic band of metal Nanoparticles 2.2. Graphene Oxide 2.3. Sensor 2.3.1. Electrochemical sensor 2.3.2. Surface enhanced Raman scattering 2.3.3. Optical sensor 2.4.2 Amalgamation and LSPR CHAPTER 3: MATERIALS AND METHODS 3.1. Chemicals and Reagents 3.2. Preparation of [emailprotected] Nanocomposite 3.3. Characterization Techniques 3.4. Optical Detection of Biomolecules 3.5. Optical Detection of Hg(II) ions CHAPTER 4: RESULTS AND DESCUSSIONS 4.2. Optical Sensing of Biomolecules using [emailprotected] Nanocomposite 4.2.1. Morphological Studies of [emailprotected] after Addition of Biomolecules 4.2.2. Raman Studies of [emailprotected] Nanocomposite 4.2.3. Computational Studies 4.3. Optical sensing of Hg(II) ions 4.3.1. Optical properties of [emailprotected] nanocomposites 4.3.2. Optical sensing of Hg(II) ions by [emailprotected] nanocomposite 4.3.3. Mechanism for the Amalgamation based detection of Hg(II) ions with [emailprotected] nanocomposite 4.3.4. Characterization of [emailprotected] nanocomposite before and after addition of Hg(II) ions 4.3.5. Selectivity of [emailprotected] nanocomposite based optical sensor 4.3.6. Practical application CHAPTER 5: CONCLUSION AND DISCISSION REFERENCES Supplementary Appendix LIST OF FIGURES Figure 1: UV-vis absorption spectra of (a) AgNO3 (b) GO, and (c) [emailprotected] nanocomposite. Inset: Photograph obtained for the aqueous solution of synthesized [emailprotected] nanocomposite. Figure 2: (A) Absorption spectra obtained for [emailprotected] nanocomposite upon each addition of 100 nM DA. (B) Plot of absorption intensity vs. DA concentration. (C) Plot of Id vs. DA concentration. (D) Plot of ÃŽ »max vs. DA concentration. Figure 3: (A) Absorption spectra obtained for [emailprotected] nanocomposite upon each addition of 5  µM AA. (B) Plot of absorption intensity vs. AA concentration. (C) Plot of Id vs. AA concentration. (D) Plot of ÃŽ »max vs. AA concentration. Figure 4: (A) Absorption spectra obtained for [emailprotected] nanocomposite upon each addition of 5  µM UA. (B) Plot of absorption intensity vs. UA concentration. (C) Plot of Id vs. UA concentration. (D) Plot of ÃŽ »max vs. UA concentration. Figure 5: TEM images of (A) as-prepared [emailprotected] nanocomposite and after additions of (B) AA, (C) UA, and (D) DA. Figure 6: Raman spectra of (a) [emailprotected] and (b) [emailprotected] with 1-à ¯Ã‚ Ã‚ ­M additions of (b) DA, (c) UA, and (d) AA. Figure 7: Electron density map and energy gap of HOMO and LUMO energy levels for Ag and DA, UA, and AA adducts, respectively calculated by DFT methods. Figure 8: Absorption spectra for the (a) AgNO3, (b) GO and [emailprotected] nanocomposite. Figure 9: Absorption spectral changes observed for the [emailprotected] nanocomposite (A) before and (B) after the addition of 200  µM Hg(II) ions. Inset: The digital photographic images taken for the corresponding solution. Figure 10: (A) Absorption spectral changes observed for [emailprotected] nanocomposite upon each addition of 100 nm ÃŽ ¼M of Hg(II) ions to the solution. (B) Plot of changes in the absorption intensity maximum at ÃŽ »LSPR of [emailprotected] nanocomposite against various Hg(II) ions concentr Figure 11: (A) Schematic explain the function of GO in the detection Hg(II) ions. (a) Addition of Hg(II) ions into a solution containing [emailprotected] nanocomposite. (b) Adsorption of Hg(II) ions on the surface of GO. (c) Interaction of Hg(II) ions with Ag NPs and formation of AgHg amalgam. (B) Schematic representation for the formation of AgHg amalgam and its influence in absorption spectra of the Ag NPs present in the [emailprotected] nanoparticles. Figure 12: Overview and high magnification TEM images obtained for the [emailprotected] nanocomposite before (A andB) and after addition of 200  µM Hg(II) ions (C and D). Figure 13: X-ray diffraction patterns obtained for the [emailprotected] nanocomposite (a) before and (b) after addition of 200  µM Hg(II) ions. Figure 14: XPS spectra obtained for the AgHg amalgam particles and their corresponding (A) Ag 3d and (B) Hg 4f regions of core-level spectra. Figure 15: Cyclic voltammograms recorded in 0.1 M phosphate buffer solution with pH 7.0 at a scan rate of 50 mV s−1 for the GC electrode coated with the solution containing [emailprotected] nanocomposite (A) before and (B) after addition of 200  µM Hg(II) ions. Figure 16: Difference in percentage of Ag NPs absorbance peak reduction observed for [emailprotected] nanocomposite in the presence of 200  µM Hg(II), Na(I), K(I), Mn(II), Ni(II), Zn(II), Co(II), Cu(II), Fe(II) and Fe(III) into the individual solutions. Inset: Photograph taken after the addition of 200  µM of Hg(II) ), Na(I), K(I), Mn(II), Ni(II), Zn(II), Co(II), Cu(II), Fe(II) and Fe(III) into the individual solution. LIST OF TABLES Table 1: Analytical performances of [emailprotected] nanocomposite for the detection of DA, UA and AA in human urine sample. Table 2: Comparison of the sensing performance of some of the Ag NPs towards Hg(II) ions. Table 3: Determination of Hg(II) ions in different water samples by using [emailprotected] nanocomposite. LIST OF SYMBOLS AND ABBREVIATIONS DAdopamine UAuric acid AAascorbic acid LoD limit of Detection LSPRlocalized surface plasmon resonance SPRsurface plasmon resonance SERSsurface enhanced resonance plasmon scattering mmili  µmicro nnano Mmolar HPLChigh-performance liquid chromatography NPsnanoparticles Hg(II) ionmercury (II) ion GOgraphene oxide rGOreduced graphene oxide GCEglassy carbon electrode eVelectron volt DFTdensity functional theory HRTEMhigh resolution transmission electron microscope XRDX-ray diffraction XPSX-ray photoelectron spectroscopy FESEMfield emission scanning electron microscope a.u.arbitrary unit LIST OF APPENDICES CHAPTER 1: INTRODUCTION For several decades, silver (Ag) nanoparticles have been attracting attention because of their excellent optical and electronic properties, high catalytic activity, and biocompatibility. Hence, they are used in a wide range of applications such as catalysis 1, solar cells 2,3, and optical 4 and electrochemical sensors 5. Ag nanoparticles possess a sharp absorption in the visible region (400–500 nm), depending on the size of the nanoparticles. This absorption feature arises from the surface plasmon resonance (SPR), which is the absorption of light by the nanoparticles because of surface vibrations between atoms 6–8. This SPR feature allows Ag nanoparticles to be used in optical sensors for the detection of toxic metals 9, biomolecules 10, and organic compounds 11. The addition of any analyte to the Ag nanoparticles leads to assembled/aggregated nanoparticles. This influences the SPR absorption band and is extensively used to follow the molecular recognition processes. Dopamine (DA) is an important catecholamine that belongs to the family of excitatory chemical neurotransmitters. It plays an essential role in the functioning of the drug addiction, cardiovascular, renal, central nervous, and hormonal systems, and in Parkinson’s disease 12. Thus, it is very important to develop a simple sensor for the detection of a sub-micro-molar concentration of DA. In recent years, the detection of biomolecules such as uric acid (UA) and ascorbic acid (AA) in human fluids such as urine and serum has gained considerable attention 13. A deficiency or excess amount of UA in the body causes several diseases, including Lesch/Nyhan syndrome, hyperuricaemia, and gout 14. Cardiovascular disease and kidney damage result from an elevated UA concentration in serum 15. Analytical methods such as high-performance liquid chromatography (HPLC) 16, spectrofluorimetry 17, spectrophotometry 18, mass spectrometry 19, and electrochemical sensors 20 have been reported for the detection of these neurotransmitter molecules. However, the existing detection methods have several limitations such as the need for expensive equipment, well-trained operators, and tedious sampling and time-consuming procedures. Alternatively, an optical sensor platform is more attractive for sensing a wide range of analytes. It is cost effective, portable, has a rapid response, and can provide real-time analyses. Recently, Ramaraj and his coworker reported a silicate-Ag nanoparticle-based optical sensor for the detection of DA, UA, and AA with LODs of 5, 5, and 1 nM, respectively 9 (Figure 1). Most commonly, Ag nanoparticles are synthesized using various chemical and physical methods, which are not eco-friendly and suffer from problems that include the poor reproducibility and stability of the Ag nanoparticles due to colloidal aggregation 21. In order to overcome such limitations, considerable efforts have been made to prepare Ag nanoparticles on polymer 22, silicate sol-gel 11, and graphene nanosheets 23. Among these, Ag-graphene has a large surface area and strong van der Waals force between the graphene and Ag nanoparticles, which significantly reduces nanoparticle aggregation. In addition, the high interfacial interactions ensure the stability of the Ag nanoparticles 24. In this study, graphene oxide-supported Ag nanoparticles were prepared using a simple chemical reduction method and used in an optical sensor for the detection of biomolecules such as DA, AA, and UA (Figure 2). The present synthetic method for the for preparation of [emailprotected] nanocomposite has a dvantages over other methods 11, 21-24 such as, long term stability, high homogeneity, rapid and ease of preparation and avoids any surfactant, stabilizers. Silver nanoparticles (Ag NPs) attracted much attention due to its biocompatibility, high catalytic activity, anti-bacterial activity, electronic and optical properties 25–28. The Ag NPs possess a principal absorption band in the region of 400 nm due to the localized surface plasmon resonance (LSPR)29,30. This SPR feature of Ag NPs is aroused due to the collective oscillation of electrons on the surface of the Ag NPs that are excited by incident electromagnetic waves 31. The SPR band position and intensity mainly depend on the size, shape and refractive index 32. This SPR band of Ag NPs is more sensitive to the surrounding environment and it significantly influences the band position and intensity. Based on the changes in the LSPR band position and intensity, an optical sensor platform with Ag NPs was developed to detect the wide range of analytes, including biomolecules 33, nitroaromatics 34, phenolic compounds 35, and heavy metal ions 36. Among the investigated analytes, heavy metal ions especially Hg(II) ions are more often monitored with Ag NPs through the optical sensing method owing to its high toxicity and solubility in water37. Mercuric (Hg(II)) ions are mainly released into the atmosphere from solid waste incineration, power plants, and bumping fossil fuels38 that pollute water, soil and air 39,40. The existence of Hg(II) ions in water causes serious damage to the brain, nervous system, kidneys and endocrine system of living organisms41. Developing a system for detecting Hg(II) with high sensitivity and selectivity against other common metal ions dissolved in water is a challenge in recent years 42–47. From an environmental point of view the development of an inexpensive, simple, selective and sensitive method of detection of Hg(II) becomes highly important. There are many types of sensors invented to detect Hg(II) in the environment. Some studies reported the detection of Hg(II) ions using electrochemical methods 48,49. Although they achieved a very high limit of detection (LoD), they need to use expensive apparatus and complicated setup. For the electrochemical testing of Hg(II) sample, the fabrication of an electrode is necessary, and that is a very tedious process. In addition, the detection of Hg(II) using fluorescence spectrometry has been widely investigated 50,51. Although this method is simple and is able to detect trace amounts of Hg(II) ions in solution, it requires expensive equipment to work. In this respect, colorimetric sensors are cheaper and do not require tedious preparation methods, colorimetric sensors have the advantage that the existence of Hg(II) is easily discernible to the naked eye without being affected by other possible dissolved ions 52–59. Recently, Hg(II) ion sensing was reported with noble metals su ch as Au and Ag by utilizing the size/interparticle distance-dependent optical properties and high extinction coefficients 60–62. The interaction between surfactants and metal NPs results in changes to the refractive index of these NPs and the LSPR band 32,33. They also may electrostatically repel the analyte, preventing it from interacting with the metal NPs and reduces the sensitivity of the sensor. In this study, the Ag NPs was prepared by using a simple chemical reduction agent and stabilized on graphene oxide (GO) sheets. Subsequently, the [emailprotected] nanocomposite was used to develop a colorimetric sensor for the detection of Hg(II) with the naked eye and an optical sensor also developed based on the LSPR changes upon the addition of various Hg(II) concentrations. This significant change in the LSPR of the Ag NPs is due to change in the morphology through the formation of AgHg amalgam. Selectivity in the detection of Hg(II) in the presence of various environmentall y relevant metal ions was also studied. CHAPTER 2: LITRETURE REVIEW 2.1. Plasmonic band of metal Nanoparticles Most probably gold nanoparticles (NPs) synthesized in the 5th or 4th century BC in China and Egypt regions 63. From that time, gold NPs have been used in both medicine and aesthetic aspects. As the result of the interesting optical properties of gold NPs, they were used for changing color of glass 64, pottery and ceramics 65. Faraday got interested about the optical properties of gold NPs and reported about the range of colors of gold nanoparticles colloidal solutions from ruby red to amethyst in 1857. Then he studied the factors influencing the color of gold NPs solutions and concluded that ‘‘the mere variation in the size of particles gave rise to a variety of resultant colors’’. Other than their optical properties, many applications of metal nanoparticles have been found in biochemistry, catalysis and sensors. For instance, one of the anti-odour commercialized devices in Japan is using the technology of immobilizing gold nanoparticles in oxide matrixes as active oxidation catalysts 66. In defenitions, nanoparticles are particles composed of number of atoms, ranging from 3 to 107 67. Nanoparticles feature properties are different from atoms or bulk material due to their size. The metallic nanoparticles larger than 2 nm possess a strong and broad absorption band in the UV-visible spectrum that is called surface plasmon resonance (SPR) band. This absorbance has discovered by Gustav Mie and known as Mie resonance 67. For smaller nanoparticles, quantum effects become more prominent and LSPR disappears. All metal nanoparticles possess the mensioned optical property, but the series of Au, Ag and Cu have very intense LSPRs. Other than that, their easy synthesis methods and their robustness to environmental conditions made silver and gold NPs to widely be used in this field. The LSPR features such as position, shape and intensity are strongly depends on various factors, to mention: the changes in the interparticle distance of the NPs and , a nd the changes in the refractive index of the local surrounding environment 68. There are indeed other types of plasmonic signals, such as the surface plasmon resonance band produced by planar metallic films, in reflection or transmission, some of them being called plasmon polaritons. Though the resulting physics is extremely exciting and the recent discoveries numerous, it is out of the scope of present thesis and they will not discuss further. In recent years, many theories were adopted by both physicists and chemists in order to give a clear description of the SPR band and on the main factors impacting its position, broadness and intensity. Many works has done to overview the existing plasmon band theories 67, and explain the SPR band by Mie and effective medium theory 69. There are some researches to explain optical propertiese of NPs with arbitrary shape by Maxwell equation theory 6. The phenomenon on absorbance of certain wavelength of light observed in transmission of light through metal nanoparticles in solid or solution phase, is called localized surface plasmon resonance band (LSPR).Nanoparticles intract with incident light in certain frequency that result global scattering of it. This observation can be explained by the collective resonance of the conduction electrons of the nanoparticle, due to interaction of electrons in nanoparticles with light. The evaluation of all parameters of material, specially its dielectric constant is necessary for understanding and study this phenomena. Usually, dielectric constant of nanoparticles count same as its bulk form and confinement effects and defects induced by edges or impurities will be neglected. For this aim a study on electrostatics in bulk metal by using Maxwell equations is necessary. In formulating the dielectric constant with known parameters, the Drude model, which describes the motion of free electrons in a metal can be applied. Then the question of the nanoparticles will be addressed: the conditions for conducting electrons resonance will be determined by several means. The determination of the frequency of the absorption maximum (denoted , the frequency of the Mie resonance), the height of this maximum and the width of the peak will be the ultimate goal of the calculations. The different geometrical confinement effect of free electrons on each material caused the electronic motion for nanoparticles vary material by material. Indeed, here the nanoparticles can be seen as a cationic network in which a cloud of conducting electrons (or free electrons) moves and oscillates. Nanoparticles dimensions are very small compared to the wavelength of the UV-visible light for which the phenomenon is observed and also comparable to the mean free path of electrons. The surface plasmon band is known to the resonance of the electronic cloud with the incident wave and the mechanics of this phenomeno n can be evaluated. In the case of nanoparticles, the conditions that electron cloud can resonate needs to be calculated. For this aim, The dielectric constant of metal nanoparticles assumed to be the same as the bulk material. Some postulates then become incorrect, but in calculation we have to keep them as an approximation. For instance, the electron density in small particles (r = 0) is not uniform and the charge will accumulate in particle edges and surface. Other than that, since the size of nanoparticles is very small comparing to the wavelength of incident light, we can consider that all electrons in the nanoparticle face with the same field at the given time and the electric field is independent of position 67. This hypothesis is known as the quasi-static approximation. When the electric field incidents to the particle, it result the displacement of the electron cloud that leads to the creation of surface charges. The positive charge would be where the cloud is lacking and the negative charge would be where it is concentrated (Fig. 1). 67 The therm â€Å"surface† is justified by the electron cloud charge mentioned in previous statements. However, we have to kep in mind that all the electrons are moving together (collectively) under the influence of electromagnetic field. This collective oscillation leads to plasmon polaritons, 64 that is different with the free plasmon in the bulk metal.67 The term â€Å"plasmon† was given to the SPR phenomenon by Shopper, due to the bounded gaseous plasmon oscillations.67 The dipolar charge repartition imposes a new force on the electron cloud. The electrons undergo a restoring force which conflicts with the external electric field. Figure.‎0.1. Schematic description of electronic cloud displacements in nanoparticles under the effect of a electromagnetic wave. 2.2. Graphene Oxide Recently, chemically modified graphene (CMG) has been studied in the context of many applications, energy-related materials, such as polymer composites, ‘paper’-like materials, field-effect transistors (FET), sensors, and biomedical applications, due to its excellent electrical, mechanical, and thermal properties. 70–72 Chemical modification of graphene oxide, which is generated from graphite oxide, has been a promising route to achieve mass production of CMG platelets. Graphene oxide contains a range of reactive oxygen functional groups, which renders it a good candidate for use in the aforementioned applications (among others) through chemical functionalizations. Although graphene known a relative novel material of broad interest and potential,1,3 GO has a history that extends back many decades to some of the earliest studies involving the chemistry of graphite.4–6 The first, the British chemist B. C. Brodie was exploring the structure of graphite by investigating the reactivity of f

Exploring Birds Article, College is a Waste of Time and Money Essay

Exploring Bird's Article, College is a Waste of Time and Money In the article "College is a Waste of Time and Money", Caroline Bird explains why higher education may not be the best choice for high school graduates. Bird writes that students do not attend college because they want to, but because of what others expect. College is merely the trend in today's society. It is an escape from the real world. Students may be shuffled into a system that is neither financially nor academically beneficial. During the first part of the article the author writes that colleges use techniques to sell themselves to students just like any other product on the market. They advertise what they have to offer and tell students what they want to hear. Students choose a school because of recreational facilities, social reputation, or by what they have heard about the academic expectations. Students do not have the money to go to college in the first place, then they end up being unhappy when they get there. A feeling of sadness exists in colleges around the country. Students do not feel of sense o...

Personal Health Assessment Essay

Overall, there are six dimensions of health that can be examined to determine if a person is healthy and fit or to see what area in his or her life needs improvement. This includes physical, psychological, spiritual, social, intellectual, and environmental dimensions. â€Å"When all of the six dimensions are at high levels and in balance, we have optimal health and well-being† (Blonna & Watter, 2005, p. 5). The three dimensions of health that I feel I am strongest at are the physical, sscial, and intellectual dimensions. Physically, I am contented with how I look and feel. I believe that I am healthy and that I take the proper precautions to take care of my body. Being free from any illnesses does not mean that a person fulfils the physical dimension of health. I think that one has to be satisfied about his or her overall health and body in order for him or her to say that he or she is physically healthy. In addition, being positive about how a person sees his or her body contributes to a better physical health. I would also like to indicate that I fulfil the social dimension of health since I do not have a problem reaching out to people. I have excellent relationships with my friends and family and this helps me grow as a person. I believe that keeping this dimension healthy is important because having people that would support you greatly contributes to a person’s well-being and improvement of the other five dimensions. The third dimension of health that I think I am strongest at is the intellectual dimension. I believe that I think clearly and that I can understand things the way they should be understood. I am very open-minded when it comes to arguing and accepting things that are not in line with my beliefs. I can argue with other people rationally and with the right common sense. On the other hand, I feel that my spiritual dimension needs improvement. â€Å"Spiritual wellness is the state of harmony with yourself and others. It is the ability to balance inner needs with the demands of the rest of the world† (Edlin, Golanty, & Brown, 1999, p. ). With our fast paced world, it is very hard for one to sit down and think about these kinds of things. There are so many distractions around us that we forget to think about our spirituality. I think that it is important for me to address this issue at this time because it would help me improve my overall well-being. I understand the importance of spiritual life and I would like to engage myself better with this area. For a person to impro ve, he or she needs determination and commitment. Improvement, especially in the area of spirituality, would not mean anything if there is no purpose behind it and if the person is doing it just for the sake of saying he or she has improved. I would like to start off by trying to learn more about what I want in terms of spiritual fulfilment. I would then gradually engage myself in my religion and take small steps to improve my inner self. I think that I would have to get to know myself better in order for me to realize what I want and need. Personally, I expect to learn from this course ways on how to know myself better, how to improve myself completely, and how to determine which areas in my life need improvements the most. Although determining is easy, it is better to learn through a knowledgeable instructor and through related materials and activities. Taking this course would also make it easier because I will be able to learn with a group of other people and not just by myself.

How and Why Guinea Pigs Were Domesticated

How and Why Guinea Pigs Were Domesticated Guinea pigs (Cavia porcellus) are small rodents raised in the South American Andes mountains not as friendly pets, but primarily for dinner. Called cuys, they reproduce rapidly and have large litters. Today guinea pig feasts are connected with religious ceremonies throughout South America, including feasts associated with Christmas, Easter, Carnival, and Corpus Christi. Modern domesticated adult Andean guinea pigs range from eight to eleven inches long and weigh between one and two pounds. They live in harems, approximately one male to seven females. Litters are generally three to four pups, and sometimes as many as eight; the gestation period is three months. Their lifespan is between five and seven years. Domestication Date and Location Guinea pigs were domesticated from the wild cavy (most likely Cavia tschudii, although some scholars suggest Cavia aperea), found today in the western (C. tschudii) or central (C. aperea) Andes. Scholars believe that domestication occurred between 5,000 and 7,000 years ago, in the Andes. Changes identified as the effects of domestication are increased body size and litter size, changes in behavior and hair coloration. Cuys are naturally gray, domesticated cuys have multicolored or white hair. Keeping Guinea Pigs in the Andes Since both wild and domestic forms of guinea pigs can be studied in a laboratory, behavioral studies of the differences have been completed. Differences between wild and domestic guinea pigs are in some part behavioral and part physical. Wild cuys are smaller and more aggressive  Ã¢â‚¬â€¹and pay more attention to their local environment than domestic ones and wild male cuys do not tolerate each other and live in harems with one male and several females. Domestic guinea pigs are larger and more tolerant of multi-male groups, and exhibit increased levels of social grooming of one another and increased courtship behavior. In traditional Andean households, cuys were (and are) kept indoors but not always in cages; a high stone sill at the entrance of a room keeps cuys from escaping. Some households built special rooms or cubby holes for cuys, or more typically keep them in the kitchens. Most Andean households kept at least 20 cuys; at that level, using a balanced feeding system, Andean families could produce at least 12 pounds of meat per month without decreasing their flock. Guinea pigs were fed barley and kitchen scraps of vegetables, and the residue from making chicha (maize) beer. Cuys were valued in folk medicines and its entrails were used to divine human illness. Subcutaneous fat from the guinea pig was used as a general salve. Archaeology and the Guinea Pig The first archaeological evidence of the human use of guinea pigs dates to about 9,000 years ago. They may have been domesticated as early as 5,000 BC, probably in the Andes of Ecuador; archaeologists have recovered burned bones and bones with cut marks from midden deposits beginning about that time. By 2500 BC, at sites such as the Temple of the Crossed Hands at Kotosh and at Chavin de Huantar, cuy remains are associated with ritual behaviors. Cuy effigy pots were made by the Moche (circa AD 500-1000). Naturally mummified cuys have been recovered from the Nasca site of Cahuachi and the late prehispanic site of Lo Demas. A cache of 23 well-preserved individuals was discovered at Cahuachi; guinea pig pens were identified at the Chimu site of Chan Chan. Spanish chroniclers including Bernabe Cobo and Garcilaso de la Vega wrote about the role of the guinea pig in Incan diets and ritual. Becoming a Pet Guinea pigs were introduced into Europe during the sixteenth century, but as pets, rather than food. Remains of one guinea pig were recently discovered within excavations at the town of Mons, Belgium, representing the earliest archaeological identification of guinea pigs in Europeand similar in time to the 17th-century paintings which illustrate the creatures, such as the 1612 Garden of Eden by Jan Brueghel the Elder. The excavations at the site of a proposed parking lot revealed a living quarter which had been occupied beginning in medieval times. The remains include eight bones of a guinea pig, all found within a middle-class cellar and adjacent cesspit, radiocarbon dated between AD 1550-1640, shortly after the Spanish conquest of South America. The recovered bones included a complete skull and the right part of the pelvis, leading Pigià ¨re et al. (2012) to conclude that this pig was not eaten, but rather kept as a domestic animal and discarded as a complete carcass. Sources History of the Guinea Pig  from archaeologist Michael Forstadt. Asher, Matthias. Large males dominate: Ecology, social organization, and mating system of wild cavies, the ancestors of the guinea pig. Behavioral Ecology and Sociobiology, Tanja Lippmann, Jà ¶rg Thomas Epplen, et al., Research Gate, July 2008. Gade DW. 1967.  The Guinea Pig in Andean Folk Culture.  Geographical Review  57(2):213-224. Kà ¼nzl C, and Sachser N. 1999.  The Behavioral Endocrinology of Domestication: A Comparison between the Domestic Guinea Pig (Cavia apereaf.porcellus) and Its Wild Ancestor, the Cavy (Cavia aperea).  Hormones and Behavior  35(1):28-37. Morales E. 1994.  The Guinea Pig in the Andean Economy: From Household Animal to Market Commodity.  Latin American Research Review 29(3):129-142. Pigià ¨re F, Van Neer W, Ansieau C, and Denis M. 2012.  New archaeozoological evidence for the introduction of the guinea pig to Europe.  Journal of Archaeological Science  39(4):1020-1024. Rosenfeld SA. 2008.  Delicious guinea pigs: Seasonality studies and the use of fat in the pre-Columbian Andean diet.  Quaternary International  180(1):127-134. Sachser, Norbert. Of Domestic and Wild Guinea Pigs: Studies in Sociophysiology, Domestication, and Social Evolution. Naturwissenschaften, Volume 85, Issue 7, SpringerLink, July 1998. Sandweiss DH, and Wing ES. 1997.  Ritual Rodents: The Guinea Pigs of Chincha, Peru.  Journal of Field Archaeology  24(1):47-58. Simonetti JA, and Cornejo LE. 1991.  Archaeological Evidence of Rodent Consumption in Central Chile.  Latin American Antiquity  2(1):92-96. Spotorno AE, Marin JC, Manriquez G, Valladares JP, Rico E, and Rivas C. 2006.  Ancient and modern steps during the domestication of guinea pigs (Cavia porcellus L.).  Journal of Zoology  270:57–62. Stahl PW. 2003.  Pre-columbian Andean animal domesticates at the edge of empire.  World Archaeology  34(3):470-483. Trillmich F, Kraus C, Kà ¼nkele J, Asher M, Clara M, Dekomien G, Epplen JT, Saralegui A, and Sachser N. 2004. Species-level differentiation of two cryptic species pairs of wild cavies, genera Cavia and Galea, with a discussion of the relationship between social systems and phylogeny in the Caviinae.  Canadian Journal of Zoology  82:516-524.

How Reporters Get Quotes for Their News Stories

How Reporters Get Quotes for Their News Stories So you’ve done a long interview with a source, you have pages of notes, and you’re ready to write. But chances are you’ll only be able to fit a few quotes from that lengthy interview into your article. Which ones should you use? Reporters often talk about using only â€Å"good† quotes for their stories, but what does this mean? What Is a Good Quote? Broadly speaking, a good quote is when someone says something interesting, and says it in an interesting way. Look at the following two examples: â€Å"We will use U.S. military force in an appropriate and decisive manner.† â€Å"When I take action, I’m not going to fire a $2 million missile at a $10 empty tent and hit a camel in the butt. It’s going to be decisive.† Which is the better quote? Let’s consider this by asking a broader question: What should a good quote do? Grab the Reader’s Attention Using our two examples, it’s clear the first quote is dry and academic-sounding. It sounds like a sentence taken from a particularly dull research paper or dissertation. The second quote, on the other hand, is colorful and even funny. Evoke Images A good quote, like good writing, evokes images in the reader’s mind. Using our two examples, it’s clear the first quote evokes nothing. But the second quote evokes a bizarre image that’s bound to stick in the reader’s brain – a camel being hit in the posterior with an expensive, high-tech missile. Convey a Sense of the Speaker’s Personality Our first quote leaves no impression of who the speaker might be. Indeed, it sounds more like a scripted line from an anonymous Pentagon press release. The second quote, however, gives the reader a feel for the personality of the speaker – in this case, President George Bush. The reader gets a sense of both Bush’s determination and his penchant for off-the-cuff humor. Convey Regional Differences in Speech Looking again at our first quote, can you discern where the speaker was raised? Of course not. But one could argue that Bush’s quote, with its salty humor and coarse imagery, contains some of the colors of his Texas upbringing. A reporter I worked with once covered a tornado in the Deep South. He interviewed victims of the twister and in his story contained a quote that included the phrase, â€Å"I tell you what.† That’s a phrase you’re only likely to hear in the South, and by putting it in his story, the reporter gave readers a feel for the region and the people affected by the storm. A good reporter could do the same thing in any area with distinctive patterns of speech, from the South Bronx to the upper Midwest to East Los Angeles. Given everything we’ve discussed, it seems clear the second of our two examples is by far the better quote. So what makes a bad quote? Unclear Speech Anytime someone says something in an unclear or unintelligible fashion, chances are you’re not going to use that as a quote. In such cases, if the information contained in the quote is important to your story, paraphrase it – put it into your own words. In fact, reporters often must paraphrase much of what they gather in interviews because many people simply don’t speak very clearly. People don’t craft their speech the way a writer crafts a sentence. Basic Factual Data If you’re interviewing a source who’s giving you reams of data, such as numbers or statistics, that kind of information should be paraphrased. There’s simply no point in quoting, for instance, the CEO who tells you his company’s revenues increased 3 percent in the second quarter, 5 percent in the third quarter and so on. It may be important for your story, but it’s boring as a quote. Profane or Offensive Speech Most mainstream news organizations have policies banning or limiting the use of vulgar or offensive speech in news stories. So, for example, if a source you’re interviewing starts swearing profusely, or uttering racial slurs, you’re probably not going to be able to quote them. An exception to that rule might be if the profane or offensive speech serves some larger purpose in your story. For instance, if you’re profiling your town’s mayor, and he has a reputation for salty language, you might use part of a profane quote in your story to show that, indeed, the man likes to cuss.

Answer the questions for each of the articles Quant and Quali Research Paper

Answer the questions for each of the articles Quant and Quali - Research Paper Example 53). The design is generally categorized under the major class of quantitative approaches to research. The major category of the design was experimental design. The random assignment of sampled subjects into a treatment and control group are identifiers characteristic of an experimental design (Sears et al., 2010, p. 53). An independent variable is a variable that the researcher has control over. In this case, the independent variable in the research was the mode of training adopted for nursing education. The manipulation of this variable was attained by assigning differing models of nursing education delivery, which included clinical simulation-based education and actual clinical placement. The dependent variable is the measured element of interest, which is affected in the research, and in this research the dependent variable was the medication errors (Sears et al., 2010, p. 52). Survey forms were used as the data collection instruments and these were filled by the instructors and students (Sears et al., 2010, p. 53). Observed medication errors were entered into forms that only bore the instructor’s name in order to preserve the confidentiality of the participating students. The external validity of the research was low because the research cannot be widely generalized. In spite of randomly selecting the participants, generalization cannot be possible for other populations and locations because all participants were from a single collaborative nursing program. This limitation reduces the external validity, but it can be overcome if the research could be replicated for different populations and locations across different times (Sears et al., 2010, p. 54). The second research titled â€Å"Whatever it takes": nursing students experiences of administering medication in the clinical setting† was authored by Happell, B. Walker, S. Moxham, L. and Reid-Searl, K. The research appeared in the seventh issue of the 20th volume of the

The working class of Indian mens working in the field of Fashion Dissertation

The working class of Indian mens working in the field of Fashion - Dissertation Example The study "The working class of Indian mens working in the field of Fashion" talks about The working class of Indian fashion Industry. With industrialization and mass production fashion got a new shape in the western world. Fashion industry has became more popular when combined with visual effects, that is through the art of photography which brings the outcomes of the designers to the doors of common people through different print media forms. on one hand photography makes the dresses and models all the more attractive and famous, while on the other, it makes the conceptual loopholes quite prominent. The 16 page editorial published in the Vogue Issue of August 2008 in India sees the new nation as a place where even the poor class takes to expensive brands and carries it off gracefully. Hence Vogue attempts to make fashion reach out to all classes of people instead of the wealthy ones or celebrities. The magazine published some photos of lower middle class people flaunting expensive branded clothes and accessories. However this kind of portrayal drew lots of controversy because the people modeling in the magazine belonged to the similar class, which witnessed suicides and poverty. What becomes prominent in this discussion is the strong influence of western culture or the cultural dependency witnessed by the Indian fashion industry. Yet, the same fashion trends which has been a pride of the glamour seeking people of the upper middle class and wealthy sections are now imposed upon. those working class people who are merely able to cover their cost of production of labor hours and some who are not even able to do so. They perhaps belong to the class of contractual or casual workers who thrive to make both ends meet. When we think of the designers and fashion photographers a finger might be raised at their sensitivity towards the human dignity. It hurts when one sees the contrast between the social status and the expensive brands. Why would a person thriving for ba re survival want to use a Burberry umbrella? Even if we assume this might one day become an economically viable option, the individual might not decide to flaunt his money through these brands even if he can afford it. The middle class people working in the fashion industry (photographers, designers and editors of fashion magazines) need to be sensitive to the ethical viability of any form of art which represents fashion trends. This prompts us to ask the question: Can Vogue’s way of representing ‘new India’ support Realism or it is an example of Aestheticism in fashion photography? II. LITERATURE REVIEW This section attempts to discuss the theories of Realism and Aestheticism in visual art and how they apply to fashion photography in particular. Reviews of different literatures are covered to learn about the evolution of fashion industry in India and the works of different fashion photographers including the way they portray fashion in the daily lives of the soc iety. The study incorporates details regarding the middle class people working in the fashion industry of India and how they portray culture and economy through their works. How the trends change along with the impact of globalization and economic upgradation. At the end of the review one might raise questions about ethics and priorities while portraying

General Education Curriculum Access Essay Example | Topics and Well Written Essays - 1000 words

General Education Curriculum Access - Essay Example In the 2004 â€Å"reauthorization, another provision was added to take the monitoring process further† (p. 234) Districts with an overrepresentation of minority group members in special education must set aside 15 percent of their federal aid for students, particularly those in grades K-3, who need â€Å"additional academic and behavioral support to succeed in a general education environment,† according to the law (Andy and Beaker, 2001). The 2004 reauthorization also required states to allow districts to use a strategy called â€Å"response to intervention,† as a tool for determining if a child has a specific learning disability. Response to intervention, or RTI, involves early identification of students’ learning problems and the use of increasingly intensive lessons, or interventions, to address those problems before they become entrenched. The process has been credited as a factor in reducing the overall rate of students diagnosed with specific learnin g disabilities, which has been on a  steady decline  since 2005, Aruba (2001). ... Although parents often play an important role in securing special education services for their children, much of the responsibility of helping students with disabilities succeed in the classroom falls to teachers, Camacho and Perez-Quiroz (2002). No Child Left Behind and IDEA require special education teachers to be â€Å"highly qualified† in special education as well as in the subjects they teach. General educators, who typically have more experience teaching a specific subject area, must be able to work effectively with students with special needs, but they are not required to be highly qualified to teach students with disabilities† (Camacho and Perez-Quiroz, 2002). An experienced special education teacher typically has helped support the learning of hundreds of children with disabilities or other special needs. In order to be qualified for this work, she has had to undergo a rigorous certification process, which graduate generally includes course work at the undergrad uate and/or level in special education, depending upon the specific licensure requirements in her state (Andy and Beaker, 2001). Susan is a first grader with a wonderful imagination who loves listening to stories and quickly incorporates new words into her spoken vocabulary. Yet, while most of her classmates have begun to read fluently, she continues laboring over each word and her comprehension remains low. Susan is not a real student, but a composite of many students familiar to virtually every experienced teacher: the ones who appear bright and engaged but inexplicably founder when trying to learn some essential part of the curriculum. Determining whether a student like Susan has a specific learning

Railroad history Essay Example for Free

Railroad history Essay The reasons why Villard failed to build a profitable railroad was that he never bothered to study much about railroads so he made many mistakes such as, he rushed to the wilderness to collect his subsidies he thought that by building the rail on an area with a beautiful view he would attract tourism in the area and so they would pay handsomely to tour, so he chose to build in the northwest because of its beauty. This increased the cost of building the railroad because he had to increase the bends, the steepness and the length of the railroad to be able to take in the rocky Mountain View. Villard also did create in areas around the hot springs in broad water county, Montana and at Bozeman costly health spas. This and more expensive buildings and structures made Villard go broke because the tourist opted to visit else where. Though the federal aid and foreign investors had given Villard some space for mistakes he made way too many. He was so eager to rush to the coast that he built when the cost of materials and construction in whole was very stiff. High cost amounts to high rates and this hindered the tourists from traveling through the NP. Railroad acted as an alternative mode of transport which farmers used to travel from rural areas to the urban market whenever they had need, they also used the railroad to transport their produce thus interacting with people from other parts of the country. As the railroad changed people’s experiences, it also changed the time concepts. If a person wanted to travel from point A to point B it became more faster than pre railroad days where one had to use horses on bad road, board a steamboat, Railroads decreased the cost of distance and increased the value of time.

Importance Of Explicit Knowledge Information Technology Essay

Importance Of Explicit Knowledge Information Technology Essay This document deals about the importance of Explicit Knowledge in the organizations. Most of the knowledge occurs in the organizations in the form of tacit knowledge. Here we deal with how to transform the tacit knowledge to explicit knowledge. The accumulation, storage and reuse of the explicit knowledge. Here we are talking about the barriers in the acquiring of explicit knowledge. The use of technology for the purpose of accumulation, storing and reuse of knowledge is also discussed. Todays business environment knowledge is emerged as a driving force in the organization. The knowledge workers and their ability are very important (LI , BRAKE,CHAMPION ,FULLER,GABEL AND HATCHER-BUSCH 2009 : 347). Recent studies show that organizations success depends on its ability to learn and adapt to particular situation. The unique performance in the organization is the key to outperform their competitor.(LI , BRAKE,CHAMPION ,FULLER,GABEL AND HATCHER-BUSCH 2009 : 348). In organization there are mainly two types of knowledge exist tacit knowledge and explicit knowledge .Scholars noticed that most part of human knowledge is present in the form of tacit knowledge (UNGAN (2006):403) . Its in the minds of the people. Explicit Knowledge is the knowledge that is expressed and documented. The documented and codified knowledge will have a structure and is easily accessed by others. (STOVER 2004 : 164).To create true knowledge it is necessary to see tacit and explicit knowledge as complem entary and both are needed to knowledge creation. IMPORTANCE OF EXPLICIT KNOWLEDGE: Tacit knowledge is something that is acquired by individuals experience in particular area. It help him to find solution for problems faster than his colleagues It is acquired through once experience and experiment in particular field (STOVER 2004 : 165). Articulating the tacit knowledge, making tacit knowledge explicit is very important in the perspective of the organization (STOVER 2004 : 165).Explicit knowledge is described in structured language. It is mainly more technical data this knowledge is gained mostly through formal education or by structured study .This will help organizations to preserve their huge knowledge capital from losing. When employees leave organization they take with them the huge amount of knowledge. (STOVER 2004 : 165). Valuable Knowledge will be wasted if organizations fails to collect , standardize and store and share the knowledge. The KM scholars believes that the articulation of knowledge helps the organization and individuals to access the knowledge in a cost effective way. Explicit knowledge is carefully organized and stored in data bases in priority basis .It should be accessible with high quality , fast and easily. The explicit knowledge can be reused for sole problems of similar kind (SMITH 2001 : 315).For instance Anderson consulting created methods to codify store and reuse explicit knowledge. They used a people to document approach. It took information from person who developed it and made independent to its developer. All the sensitive information is removed and it can be used in the same similar context (SMITH 2001 : 315).When knowledge is shared among the members of the organization , it can be viewed as organizational history and experience (BONTIS 1998 : 64). In small companies they manage their knowledge is by training the new employees. Its a costly process. Thats where the importance of comput er based learning comes. Transformation of tacit to explicit knowledge is important here (WICKERT AND HARSCHEL 2001:330). If a expert employee got sick or left the organization the expertise of that employee is not available for a fixed amount of time or permanently (WICKERT AND HARSCHEL 2001:331). In job market skilled and experienced workers are getting retired. New young workers are replacing them . So there is a high demand for sharing of experience . This can be possible by the articulation of tacit knowledge they have gained from their experience (JACKSON 2010:915). EXPLICIT KNOWLEDGE CREATION EXPLAINED IN S.E.C.I AND BA MODEL In S.E.C.I model externalization phase deals with the transformation of tacit knowledge to explicit knowledge. For knowledge transformation they use different methods. Some of the methods are storytelling , narrative and using some IT medias like emails, chat rooms etc. The knowledge should be structured so as it should provide accessible and reusable. Externalization should be structured then the knowledge can be made sensible and available for potential users(JACKSON 2010:911).Top management can influence the externalization of knowledge. They can encourage the teams to develop their own metaphor for what they should do (RICHTNER AND AHLSTROM 2010:1020).The creation of concept of a new product is the example of externalization. In combination phase the extracted knowledge is standardized and systematic procedures to combine the knowledge using computer database or an expert system. The internalization deals with the transformation of explicit knowledge again to tacit knowledge by t he use of stored explicit knowledge.(STOVER 2004 : 165). The meaning of Ba is place . Ba does not mean only the physical space . It is the concept of interaction . For the creation of knowledge a space is necessary. This space may be a physical one or a virtual like online one. There are four types of Ba . Among that dialoguing ba deals with the face to face interaction . It is the space where individuals share knowledge. The process of tacit to explicit knowledge conversion happens here. Dialoguing ba is more structured than the previous ba . In systematic ba the collected knowledge is combined to a more structured form. The use of information technology like online networks , group ware etc contribute to systemizing ba .The excersiing ba where the stored knowledge is shared through virtual media or print etc. The healthy interaction between all these ba can amblify the knowledge creation ( Nonaka,I.Toyama,R and Konno,N.(2000) :16-17). BARRIERS IN KNOWLEDGE ARTICULATION: Converting tacit knowledge to explicit knowledge is a tedious job. As we said tacit knowledge is embedded in the minds of the individuals. This make it difficult to formalize and express. There are some personal issues in articulating the knowledge. Individuals believe that articulating the knowledge one may lose his competitive advantage. Some people believe their knowledge is not worth expressing . Some KM scholars believe that language barriers also hinder the transformation of tacit knowledge to explicit knowledge. (STOVER 2004: 166) The culture of the organization also may be a factor that hinders knowledge generation and sharing in the organization. There may be political issues between the departments that prevent the transfer of knowledge. Sharing culture is very important before implementing any strategies in any organization (Syed-Ikhsan and Rowland 2004 : 100). Knowledge transfer requires groups or individuals to work together and share their expertise and knowledge. The knowledge transfer does not occur unless group or individuals shows a co-operate behavior(SYED-IKHSAN AND ROWLAND 2004 : 96). Individualism is one of the major factors that hinder the creation and transfer of knowledge in any organization ( Syed-Ikhsan and Rowland 2004 : 100). For the sharing of knowledge there should be trust among the employees. In project team leadership style also effect the process of knowledge sharing(MA,QI AND WANG 2008:101).The authoritarian style leaders give no chance for the team members to participate and share knowledge. While the democratic style leaders encourages team members to interact and share knowledge (MA,QI AND WANG 2008:101).Another factor that hinders the knowledge sharing in the public organization is limited access to the resources (Syed-Ikhsan and Rowland 2004 : 100).Time is one of the major factors that inhibits the process of a rticulating the tacit knowledge. Most of the employees have a little time for articulating their knowledge. Patrick and Lee done research and they contradicted the views of Richard and Kabjian who says the fear of losing superiority and reward system are inhibitors of knowledge sharing. They also argues that the size of the company is not a problem in knowledge transferring (FONG LEE 2009:304) Some KM scholars like Swartz and Marwick argues technology is unable to provide a complete solution for knowledge capture . At many instance the experts find it is very difficult to trigger a knowledge person by query unless they are put into problem situation (JACKSON 2010 :911). Researchers found that the fear of not being adequately rewarded is the one of the barrier for the knowledge sharing. CAPTURING KNOWLEDGE: As we said conversion of tacit knowledge to explicit knowledge is difficult. There are several ways in which tacit knowledge can be made explicit. The formal ways of interviewing is a useful method. In interviews participants are asked structured questions. This format of interview should be made such that they shouldnt feel that the articulation is happening (STOVER 2004 : 166-167).The level of details available in documentation depends on the purpose of documentation (UNGAN 2006 : 404).For conversion of tacit knowledge to explicit knowledge the interviewer should accompany the knowledge worker in his process. In between the knowledge can be articulated. For this formal language is used (UNGAN 2006:407) . Individuals poses high level of tacit knowledge . If organizations fail to track it then it cannot be made explicit and will not reach its fullest potential (BONTIS 1998:66). The role of knowledge managers is very important. He can encourage the employees to share their knowledge and make them explicit (STOVER 2004 : 166-167). The knowledge management is riskier unless the organizations take initiatives and reward system for sharing of knowledge (SMITH 2001 : 312). For instance Buckman Laboratories recognizes their knowledge in their annual conference. Lotus one of the divisions of IBM evaluates the customer support workers on the basis of their knowledge sharing activities (BARTOL AND SRIVASTTAVA 2002 : 64). Xerox developed a system called Eureka which is meant for the maintenance engineers to share their ideas and experience .Once these ideas are posted they are verified and made available for service engineers all over the world. This help the Xerox in saving $100 million . Companies like Cap Gemini Ernst Young makes merit decision based on the knowledge sharing activity of its employees .In these companies the people who are posting ideas are evaluat ed and then posted into the knowledge contribution database(BARTOL AND SRIVASTTAVA 2002:67). Technology is important in collecting and codifying knowledge. There should be a strong framework for the systematic storing of knowledge. IT itself cannot helps something to get out of someones head. It is the role of managers to find out what is important for the organization . Some KM theorist like Pawar doubts the centralization of knowledge. He states that centralization of knowledge will reduce the cost of sharing the knowledge . He agrees the role of role of technology plays in the acquiring, storing and structured distribution of knowledge . Combining the intellectual property with IS will help the individual intellectual property to the group property (BONTIS 1998:66).KM combined with It will support the data mining and sharing of explicit knowledge (WICKERT AND HARSCHEL 2001 :333).Internet is one of the major repository of explicit knowledge(WICKERT AND HARSCHEL 2001 : 335). Knowledge exchange protocols can be used in transferring tacit knowledge to explicit knowledge. SOAP protocol which is used by physicians is one of the examples. This protocol helps to structure clinician patient conversation and helps to share issues by understanding the physicians thinking. This also helps in documentation of patient medical record (HERSCHEL,NEMATI AND STEIGER 2001:107).New generation tools such as wikis , blogs ,social networking etc. helps a greater collaboration in work place. This will solve some of the problems associated with knowledge capturing. These forms even can accommodate videos , images etc. It can be used to capture informal indicates of tacit knowledge (BARTOL AND SRIVASTTAVA 2002:64).This videos and images can then be summarized based on the content . They can be linked to topics of relevance and stored. These can be accessed through portals later (COAKES 2006:583). Mobile technology can be used for the capture of knowledge .In organizations there will be mobile workers will be advantaged by these technology. The challenge is how to incorporate the this knowledge to main memory. Information technology can be used as a powerful tool. It can be transformed from the role of storing and retrieving data to improve access to knowledge by removing the spatial obstacles of knowledge transfer. IT has got a ability to spread knowledge across different departments of the organizations (TOHIDINIA AND MOSAKHANI 2010 : 615). CONCLUSION: For any organization the Knowledge is very important. The conversion of Tacit knowledge to explicit knowledge is very risky process. There are the barriers like individualism, politics inside the organizational departments. The factor of trust plays a major role in conversion of knowledge . For some small companies the cost of knowledge sharing is not affordable. Technology can play a major role in the tacit to explicit knowledge transfer. There are new generation technologies that can be used for the this purpose. The reward system is one factor that will encourage knowledge transfer. The role of the management in promoting the knowledge conversion is very important . The uniqueness of knowledge the organization owns will brig the organization the competitive advantage.

Free Essays - Animal Farm :: Animal Farm

An English writer by the name of George Orwell published a book in 1943, called Animal Farm.   In the eyes of Mr. Orwell, the sole purpose of the book was to expose the Soviet myth of Russia’s acclaimed socialist utopia in a way that almost anyone can comprehend. The simplicity of language in the book and the usage of animals to convey the message made it a prime candidate for a cartoon version and thus one was created. This essay will look at the differences between the book Animal Farm and it’s cartoon adaptation. The three criteria which will be used as a basis of comparison are:   characterization, exposition and theme. The book Animal Farm, is an allegory of the Russian Revolution of 1917 and the events that followed shortly after. In order for the reader to be able to get a firm grasp on the conditions in Russia before, during and after the revolution, George Orwell took great care in ensuring that the all the characters in the book could easily be identified with their Russian revolution counterpart. While reading the book, one should easily be able tell the parallel personality for each character because of George Orwell’s very accurate descriptions of the characters. As a result, a great deal of characterization is visible in most parts of the book, as he is constantly building upon the characters. The movie Animal Farm on the other hand is quite different.   In the movie, very little time (relative to the book) is spent on developing the characters. In some instances during the movie we discover that there are some characters in the book that are not mentioned in the movie (e.g. Molly and Mrs. Jones). Also, in Animal Farm the movie, there is little dialogue among the animals, unlike the book. In the book, it is this dialogue that really helps us understand the type of regime in Russia at the time. If someone were to watch the movie but never read the book, it would probably be a lot harder to see the relationship to the Russian revolution. In the book, some of the instances that occur in Animal Farms exposition play important roles later on in the book. At the start of the book you are introduced to a flurry of thoughts and ideas that are very instrumental throughout the remainder of the book. The exposition begins with Old Major, telling the animals of a dream he has in which all animals are free from the oppressive human regime and equal amongst each other.