Z for Zachariah Essays

Z for Zachariah Essays Z for Zachariah Paper Z for Zachariah Paper The book I have been reading was called Z for Zachariah by Robert C. OBrien. The two elements that contributed to my understanding and pleasure in this novel were the structure of the novel and the power struggle the main characters had to survive. The novel was about a sixteen year old girl called Ann who kept a diary after a nuclear attack devastated the country in which she lived. In the diary Ann spoke about being the only person to survivor. This soon changed though as a man with a safe suit called Mr Loomis arrived in her valley, who was privileged enough to posses a safe suit. Ann had always hoped that someone else had survived, to help to repopulate the world but her initial joy was then replaced with the fear that he could be a murderer or he could take full control of the valley and her life. He soon fell ill, and Ann nursed him to health. However their relationship started to deteriorate and by the end Ann managed to escape from him. She had the safe suit in her possession, and was heading off to face an uncertain future. One interesting feature of the novel was that it concentrated on a tense power struggle between Ann and Loomis, and I felt great sympathy for Ann. One reason for feeling sympathy for Ann was due to the fact that the novel was written in the style of a diary. A diary is very personal and I felt that I understood Anns point of view. She wrote it in the first person I am afraid I think someone is coming. The whole novel seemed to be long extracts from her diary over around two and a half months. This period of time meant that I knew her very well and I supported her in her actions. Power struggles soon began Ann and Mr Loomis. The fights were over several things including their equipment and food, but especially about their own personal power struggles. The valley where Ann had spent all of her life became crucial in this novel. The valley was a power symbol used by both Ann and Loomis. Without the valley Ann would be dead and Mr Loomis would still be searching for safe land. As most of the valley was safe from radiation, except for a small section of the river. Crops could be grown and it was also the place where the abandoned shop and the house were located. Anns knowledge of the area was vital. This knowledge would also let her know where the best places to grow the crops were, but Ann feared losing them along with the valley, home, dog, shop and the potential mate in Loomis. She gained the chance to leave the valley with the safe suit and the chance of finding other survivors. After Loomis had lost the company of Ann and the precious suit. Mr Loomis had gained a home, his equipment and food from the shop that would last in the short term. But as he had lost Anns knowledge, he would face a lonely and difficult future. Other symbols of power that were used in the novel to great effect were the dog, the suit and the valley. Eventually the dog was used as a tool by Loomis to track down Ann. The dog thought it was a game and he was always eager to find Ann. He was following my trail again, but this time leading Mr Loomis behind him. Mr Loomis held onto this symbol of power as he kept the dog tied up beside him all of the time, which worried her and made her think Loomis was trying to trap her. The suit was the only way out of the valley and it was the only safe way to find out if there was life beyond. The suit was the only thing that could keep out radiation and it was the only one in existence. Mr Loomis also had the worlds only radiation-proof suit. Mr Loomis and Ann got on well until Ann heard him talking in his dreams about a man trying to take the safe suit from him. The suit, he said, his voice hardly above a whisper. Hell steal the suit. Ann became anxious and felt that maybe he could become a danger to her. If Edward was inside the suit when they were fired then he had certainly been killed. If he had killed someone before, he could quite easily kill again. Ann became particularly afraid one night when Mr Loomis got very aggressive and tried to force himself on her against her will. Ann had to flee back to the cave where she stayed until she was forced to leave the valley. Ultimately Ann had to give up the security of her home and the valley that had belonged to her family because she could not live with Mr Loomis. They were possibly the only two people alive and it was sad that they couldnt live together. This could have been the last chance that mankind had to repopulate the world. The novel was very enjoyable mainly due to the fact it was written in diary form and the tension that was created by the power struggle.

Boiling Point Elevation Example Problem

Boiling Point Elevation Example Problem This example problem demonstrates how to calculate boiling point elevation caused by adding salt to water. When salt is added to water, the sodium chloride separates into sodium ions and chloride ions. The premise of boiling point elevation is that the added particles raise the temperature needed to bring water to its boiling point. The extra particles interfere with the interactions between solvent molecules (water, in this case). Boiling Point Elevation Problem 31.65 g of sodium chloride is added to 220.0 mL of water at 34  °C. How will this affect the boiling point of the water?Assume the sodium chloride completely dissociates in the water.Given: density of water at 35  °C 0.994 g/mLKb water 0.51  °C kg/molSolution:To find the temperature change elevation of a solvent by a solute, use the equation:ΔT iKbmwhereΔT Change in temperature in  °Ci van t Hoff factorKb molal boiling point elevation constant in  °C kg/molm molality of the solute in mol solute/kg solvent.Step 1 Calculate the molality of the NaClmolality (m) of NaCl moles of NaCl/kg waterFrom the periodic tableatomic mass Na 22.99atomic mass Cl 35.45moles of NaCl 31.65 g x 1 mol/(22.99 35.45)moles of NaCl 31.65 g x 1 mol/58.44 gmoles of NaCl 0.542 molkg water density x volumekg water 0.994 g/mL x 220 mL x 1 kg/1000 gkg water 0.219 kgmNaCl moles of NaCl/kg watermNaCl 0.542 mol/0.219 kgmNaCl 2.477 mol/kgStep 2 Determine the van t Hoff factorThe van t Hoff factor, i, is a constant associated with the amount of dissociation of the solute in the solvent. For substances which do not dissociate in water, such as sugar, i 1. For solutes that completely dissociate into two ions, i 2. For this example NaCl completely dissociates into the two ions, Na and Cl-. Therefore, i 2 for this example.Step 3 Find ΔTΔT iKbmΔT 2 x 0.51  °C kg/mol x 2.477 mol/kgΔT 2.53  °CAnswer:Adding 31.65 g of NaCl to 220.0 mL of water will raise the boiling point 2.53  °C. Boiling point elevation is a colligative property of matter. That is, it depends on the number of particles in a solution and not their chemical identity. Another important colligative property is freezing point depression.

Maternal problem in Australia Essay Example | Topics and Well Written Essays - 1250 words

Maternal problem in Australia - Essay Example Only Sweden (4.6) and Italy (3.9) are ahead of Australia in maternal care (Rogers, 2010). At the same time, the Department of health Australia (2015) says that smoking, alcoholism and drug use during pregnancy is common in Australia. It should be noted that smoking, alcoholism and drug use during pregnancy would cause immense harm to the physical and mental health of the mother and the child before and after its birth even though these habits may cause fewer threats to the life of the mother. In short, even though the death rates among the pregnant mothers due to maternal problems in Australia is less, crazy behaviors during pregnancy are causing problems to the newly born children in Australia As per the views of the Australian government: Department of Foreign Affairs and Trade (2013), Australia helps and advices developing and underdeveloped countries such as Asian and African countries in saving the lives of children, mother and pregnant women. In other words, Australia is currently giving tips to save the life of mothers and infants in the developing world. In fact they have the rights to do so since maternal problems in Australia is comparatively less and Australia has developed several innovative mechanisms to counter the problems during maternal life. At the same time, Perlen et al. (2013) conducted a study in Australia and concluded that many of the pregnant women in Australia are facing physical as well as mental problems. Perlen et al found that nine per cent of pregnant women (131/1500) had clinical depression in early pregnancy. As per their findings, the most commonly occurring problems during pregnancy are: exhaustion (86.9%) followed by morning sickness (64 .3%), back pain (45.6%), constipation (43.5%) and severe headaches or migraines (29.5%) The above findings are not much surprising considering the fact that a lot of pregnant women in Australia are smokers, alcohol users and drugs users.

Bacterial transformation and gene expression Lab Report

Bacterial transformation and gene expression - Lab Report Example This study looks into DNA as the blueprint of our life. Life without these molecules is not possible. DNA are transcribed into RNA and translated into proteins. These proteins are important for the biochemical functions of the cell. In bacteria, apart from DNA, there is extrachromosomal DNA called as plasmids. They are double stranded DNA which forms circles with size ranging from 1 kb to 200kb (kilobase). Plasmids are very advantageous for the genetic engineering. Plasmids code for many antibiotic regions and they have the ability to accept the gene of interest. The transformation of our gene of interest into the plasmid is called recombination and the bacteria are called recombinant bacteria. Thus plasmids can be used as cloning vehicles or vectors. These plasmids are not essential for the survival of bacteria, but in some instances, for survival in the different environments, they can provide some extra advantage. The best example is the survival of the bacterial cell in the prese nce of an antibiotic drug. Antibiotic resistant bacteria like Escherichia coli are used for the transformation of the gene of interest into the host cell. Transformation and cloning are the two important genetic engineering tools used for the expression of the foreign gene of interest in the given bacterial cell. Three conditions required for the transformation are: 1) the host into which the foreign DNA is inserted, 2) a method for the insertion of the DNA into the host cell, and 3) methods to identify the transformed cells and select them.

The Story as Told in The Adventures Of Huckleberry Finn Essay Example for Free

The Story as Told in The Adventures Of Huckleberry Finn Essay Mark Twains Legendary story of Huckleberry Finn is the tale of a young little-minded orphan boy named Huck, who is the narrator, and tells his story in which he is accompanied by a runaway slave named Jim who both embark on various mischievous adventures down the Mississippi River, Jim who is owned by Hucks care takers Ms. Watson and Widow Douglass is faced with the most challenges in the novel. Throughout the novel Huck Jim are faced with many obstacles on there adventures up and down the Mississippi River seeking the free state of Illinois, where Jims Plan is to gain his freedom and live his dream of reuniting with his wife and children whom were also sold into slavery. Eventhough the novel is touching and compelling in many ways over the last 120 years Twains novel has been attacked by various groups for being a racist novel, while others strongly believe that his novel is the greatest statement in American culture against racism. Twain began writing The Adventures of Huckleberry Finn currently after his first novel The Adventures of Tom Sawyer (1876) which wasnt as much of a controversial novel compared to his best seller. Twain later re-wrote and re-wrote Huck Finn multiple times later finishing it in December 1883. During his writings Twain had a hard time within himself towards his novel due to his character Huck helping Jim runaway to a free state and there strong bond they both shared, which Twain knew wasnt a right thing to do during his time for the fact in the eyes of the average slave owners or racist go-getters. As years passed and many different versions of Twains writings evolved from language to language but still with-held the same context as his original writings. After Twains passing, and Huckleberry Finn having a slight shed under the limelight for some of its vulgar language, and more than many racial slurs toward Jim other characters portrayed as slaves in his novel, real criticism began. Many different types of various groups regardless whether they have there share of pros and cons, on the novel shared there own opinions regarding the use of the N word being used in the novel to be dignified as if it was Jims name. Those who do not approve of Twains writings are those who see the book as a racist novel, which when reading the novel you can see many different clusters of its racism. As you continue to read the Adventures of Huckleberry Finn you tend to notice that Huck is faced with many challenges dealing with the fact Jim is a runaway slave,and Huck is giving his share as being a accomplice in his crime, and that is where many people who see the negative side of the novel try to look passed the helpings of Huck and Jims freedom and just focus on that bubble of racial slurs and the hardships for African Americans of that time who were mistreated and who died trying to live a positive life style passed the mistreatment. Thats in all of the history itself Twain lived in the era where slaves were a household appliance or necessity and in todays days its unethical to own a slave, which many Americans today will all agree on. Many issues the groups who withheld opposition of Twains writings in our decade are trying to shed light on the fact that this novel is being taught in schools all across America, and the use of the racial slurs once again should be censored throughout the novel. Yet once you re-arrange a book to have the slightest bit of change, you create a gap or some type of a road block where you miss the true meanings Twain is trying to approach to his audience, to feel the feelings Jim and Huck felt on there voyage across the Mississippi, and thats when other groups who approve of the message Twain is trying to achieve in his purpose feel as if this is one of the novels in American History that cultivates one of the greatest statements of the true meaning on unity, faith, and the growth of a boy becoming a man all within a time where racism was a huge whirlwind of negativity. Choosing a side to say weather Twains novel is a racist book, or one of the greatest statements in American culture against racism. I would have to choose that, Twain was always giving a positive outlook when writing this story,due to many helpings between the friendship of Huck Jim. Regardless if it was Jim helping Huck or Huck Helping Jim it was an integrated friendship that would of not have been accepted in the society of the late 1800s when racism wasnt at its peak as it would be 50-80 years later in the time of the Civil Rights Movement. Some can and will always argue with the vulgarity scripted page by page in the story but that is what makes it such an interesting story, Twain wanted his reader to experience the feelings he captivated within each character and how hard it really was in his decade for two unlike pairs to help eachother gain more than moral values in life and to take chances in doing whats right than whats expected. Seeing passed the racism issues various groups attack Twains writings on, he tries to give a self point-of-view on what unity should really be like, such as Huck helping Jim be free than later throughout chapters recover Jim from a slave auction where he was forced to stay when the King and the Duke turned him in for ransom. Regardless of his skin color and the crime he committed Huck knew what was right from wrong and did the unexpected and helped out a colored man , at the time where it was not excepted to do so in that specific time frame in American History. You can say the novel shares its negatives and its positives on the opinions of racism, yet many can share there own opinions within eachother when reading the book. Mark Twain had every bit of intention to make his book have many controversies in his present and our future. People need to see the true meanings of Twains work past all of the negativity and a real autobiographical look at his point of view on racism itself, he had every reason for Huck and Jim to be best buddies in his novel because at that time he knew what was right from wrong. So people can his story is wrapped around tightly with words or racism some can say its simply work of great meanings but as I would say its a story of unity of two unlike pairs to be united as one into helping eachother find themselves and the true meaning of life, and becoming there own men, In Conclusion Mark Twains Legendary story of Huckleberry Finn the tale of the young little-minded orphan boy Huck, and a runaway slave Jim who both embarked on a mischievous adventure down the Mississippi River, and faced with many challenges seeking the free state of Illinois. Was really a tale of two unlike cultures coming together and helping one another no matter what color you are friendship is stronger than a racial barrier, eventhough the last 120 years the book has been attacked by various groups for being a racist novel, while others strongly believe that it is the greatest statement in American culture against racism. I strongly believe it is definitely the greatest statement in American culture against racism. Word Count:1266

Media’s Role In Body Images Essay -- Media Advertisements Advertising

Media’s Role In Body Images Authors can effectively get their point across by using different rhetorical techniques. In the two articles that I will examine, the authors mainly used a pathos appeal. Authors use pathos to get a social and emotional application across to the reader. Another rhetorical technique that is used by many authors is ethos. Ethos is a technique that can be used by an author saying that since they are perhaps a doctor or may have belonged to a certain organization for a long time, then they know more about a topic than somebody who may not have had the same moral values or interests. Logos, or the logic that the reader may conclude from the author, is an additional rhetorical technique that is commonly used by authors. These three appeals are the best way for an author to get his point of view across to the reader. Authors that are writing about the same topic might not use the same appeals, nor may they use identical appeals in the same way. Consequently, Colleen Thompso n author of Society and Eating Disorders and David Butler author of Slim Pickings are both getting the idea that society and the media play a role in the behavior of how people feel about their bodies, but they use different appeals to get their points across. The two articles, written by Thompson and Butler, deal with the issue of how people, especially females, deal with the media’s role concerning weight issues. As the year 2000 rolled in, actresses’ and models’ body weight decreased, and their waiflike bodies became more noticeable in the public’s eyes. Many little girls grow up idealizing the people in the public eye, giving them the idea that they must look a certain way, which is not a healthy way.... ...ns where you can find out about weight loss & fitness. Thompson has links that can help out people. She has a bunch of icons to click on; for example, if you want to know signs of problems you can click on signs, or if you want to get help you can click on either getting help or therapists. Even though Thompson’s article is less appealing to the eye, she has more icons that can help someone better understand problems that are associated with media and weight loss. Butler and Thompson’s article’s are very informative, and help people to better understand the problem’s people are faced with today. Even though both authors use different techniques to get the reader to better understand how they feel about their topic, the reader can learn from both papers. I feel that these two authors used very good techniques, and they are both respectable papers.

Brief Analysis Report of Rio Tinto

Brief analysis report of Rio Tinto Rio Tinto is a British multinational metals and mining corporation with headquarters in London and a management office in Melbourne, Australia. The corporation was founded in 1873 and it ranked at the number 263 in Global 500 of largest worldwide companies in 2008. (Wikipedia, 2012) Rio Tinto’s net earning has decreased in the year 2011 mainly because of the financial crisis and global economic uncertainty (Annual report of Rio Tinto, 2011). Meanwhile, the leadership claimed that they believe the long-term outlook is strong. Figure 1: Key Financial Data of Rio Tinto (from 2010 and 2011) YearItem | 2010 / US$ million| 2011 / US$ million| Net profit before tax| 20,491| 13,214| Net profit after tax| 15,098| 6,765| Total comprehensive income| 16,492| 4,365| Sales| 55,171| 60,537| Total assets| 112,773| 119,545| Current assets| 21,459| 21,898| Current liabilities| 12,876| 14,966| Cash flow from operating activities| 23,530| 27,388| (Annual report of Rio Tinto, 2011) According to figure 1 the net profit margin of Rio Tinto in the year 2010 fell from27. 4% to 11. 2% in the year 2011. (net profit margin is equal to net profit after tax divided by sales revenue) The profit rate to net worth of this company in the year is 5. %. (profit rate to net worth is net profit after tax divided by average total assets) The investors should use comprehensive income figure rather than net profit because comprehensive income includes all changes in equity during a period. (comprehensive income is equal to net profit plus other comprehensive income) The operating cash flow increased by $US3,858 million from $US23,530 million in the year 2010 to $US27,388 million in the year 2011 meanwhile, the sales raised by $US5,366 million from $US55,171 millionin the year 2010 to 60,537 million US$ in the year 2011.This matter of fact indicates Rio Tinto expended $US1,580 million on operating the company. The current assets increased smoothly from $US21,45 9 million in the year 2010 to $US21,898 million in the year 2011. At the same period the current liabilities raised up dramatically from $US12,876 million in the year 2010 to $US14,966 million in the year 2011. This data shows the company did not work well in this period. (Figure 1) Rio Tinto will cutting office jobs in Melbourne and Sydney in Australia and the board of the company will cut support and service costs by 10 per cent around the world (Greg, 2012).Because they said they need to build resilience and controlling costs during a difficult time, which includes product price decreases and Europe’s debt crisis (Greg, 2012). Greg’s report (2012) also showed that the Rio Tinto’s first half net profit dropped dramatically to $US4. 9 billion ($A4. 69 billion) from $US7. 78 billion ($A7. 44 billion) last year. Not only Rio Tinto’s earnings has dropped but BHP Billiton’s earnings are forecast to drop at the same time the world’s biggest iron ore miner Vale also posted lower than expected second quarter earnings at two year lows(Greg,2012).In the group statement of financial position the goodwill of Rio Tinto has dropped almost half of that in the year 2010 which is from $US15,316 million to $US8,187 million(Annual report of Rio Tinto, 2011). This matter of fact indicates that the company Rio Tinto appears to be done not well. The inventories of this company increase by $US551 million from $US4,756 million in the year 2010 to $US5,307 million in the year 2011(Annual report of Rio Tinto, 2011). The inventories rise up means the product of Rio Tinto cannot be sold mainly because the economy is uncertain and the demand of the ore is weak.The current and non-current liabilities all raise heavily and the net assets decreases from $US64,512 million in the year 2010 to $US59,208 million in the year 2011(Annual report of Rio Tinto, 2011). The liabilities rise up means the Rio Tinto tried to borrow money to pass the difficult ti me which lasting time is still uncertain. The net profit of Rio Tinto and other mining company decrease mainly because the commodity prices drop seriously. Commodity prices are formed by the interaction of global economic growth and costs of expanding supply of ommodities (Garnaut,n. d). According to Gurnaut’s article ‘the contemporary China resources boom’ China have been the main reason of high energy and metals prices since the year 2003. The article also claimed that Chinese growth has been the consequence of high investment rates and rapid increases in fringe population and the export share of production. The author believed that developing countries like China and India will still keep the commodity prices of ore in high level.In brief, although the financial and operating situation of the Rio Tinto is not well, the future of Rio Tinto will still be great because the demand of developing will be strong. Hence, it will be a good choice to invest Rio Tinto. R eference list Garnaut, R 2012, ‘The contemporary China resources boom’, The Australian Journal of Agricultural and Resource Economics, vol. 56, no. 2, pp. 222–243 Rio Tinto Ltd, 2011, Annual Report viewed 5 August 2012 http://www. riotinto. com/annualreport2011/pdf/rio_tinto_2011_annual_report. pdf Wikipedia2012, Rio Tinto Group, viewed 26 October 2012, < http://de. wikipedia. org/wiki/Rio_Tinto_Group>