The Kite Runner - Amir and Babas Relationship, Amir and...

Amir and Hassan’s Relationship From reading chapters one to four, one of the main aspects of Amir and Hassan’s relationship is the sense of control Amir has over Hassan. It becomes apparent that Amir is the one with the most authority in their friendship when he ‘talked’ Hassan into firing walnuts at the neighbour’s one-eyed German shepherd, ‘Hassan never wanted to, but if I asked, really asked, he wouldn’t deny me’. This highlights the way Hassan looks up to Amir and obeys him due to their religious, cultural and social differences, ‘I was a Sunni and he was a Shi’a’. Nevertheless, Amir does express his sensitive side towards Hassan and feels protective over him, especially when he can see he’s upset, ‘I reached across my seat, slung my†¦show more content†¦Hassan’s inferior character is presented by the way he serves Amir, ‘While I ate and complained about homework, Hassan made my bed’, which implies that no matter how close they may be, Hassan remains the servant which he accepts and is content with, ‘I’d hear him singing to himself in the foyer as he ironed’. Also, Hassan addresses Amir as ‘Amir agha’ which highlights his respect to Amir. However, despite their divisions, when they are alone together they consider themselves equal, ‘†Amir and Hassan, the sultans of Kabul†Ã¢â‚¬â„¢, creating irony as they are both aspiring the same hopes and dreams but we know that it is unattainable. Amir is often threatened by Hassan which Hassan is oblivious to, resulting in Amir feeling jealous and misusing his authority over Hassan, ‘though I stopped reading those when I saw he was far better at solving them than I was’, implying that Amir can’t handle an ‘inferior’ person exceeding him in any way. This jealousy develops into abuse towards Hassan when Amir uses his intelligence to make a fool of Hassan who is illiterate, ‘†When it comes to words, Hassan is an imbecile.† â€Å"Aaah† he said, nodding’. However, Amir would then feel ‘guilty’ for this and would give him an old shirt or a broken toy, ‘I would tell myself that was amends enough for a harmless prank’ displaying Amir’s malicious behaviour towards Hassan. Amir and Baba’s Relationship From the beginningShow MoreRelatedKite Runner Father Son Relationship1628 Words   |  7 PagesFather Son Relationships in The Kite Runner Sigmund argues â€Å"I cannot think of any need in childhood as strong as the need for a father’s protection†. A child’s treatment in their early memories directly impacts a child’s future. Moreover, it is important for elder figures such as fathers to raise their children with genuine love, protection, and care. In the novel, â€Å"The Kite Runner† the connection between a father and son may not always be one of love, but rather it is loaded with compassion andRead MoreEssay on The Kite Runner Relationship and Symbolism1662 Words   |  7 Pagesin ‘The Kite Runner’ to present key relationships? You should consider different reader responses and the extent to which your critical approach assists your interpretation. In Khaled Hosseini’s novel, ‘The Kite Runner’, it is often thought that symbols and metaphors are used as visual representations to reinforce and put emphasis on important stages in the novel. In can be seen that symbols are used in the novel to highlight particular moments in key relationships. For example Kites, the PomegranateRead MoreKite Runner Essay899 Words   |  4 PagesGena Narcisco Mrs. Sharpe Honors English 10 10/11/12 The Kite Runner Do you know that Afghanis play a game where they fight with kites? The Kite Runner by Khaled Hosseini describes kite fights between local Afghani kids, regardless of their social status. The main characters in this story that come from a higher socioeconomic level are Baba, a lawyer from the Pashtun tribe, and his son Amir. The main characters in this story that come from the lower socioeconomic level are Ali, a servant fromRead MoreSymbolism In The Kite Runner By Khaled Hosseini992 Words   |  4 Pages In the novel the Kite Runner, Khaled Hosseini, the author, often uses symbolism throughout the book. There are many, many items or things that signifies something, or means something different than what is shown. For example, things like the kite, the pomegranate tree, Amir’s scar, the slingshot, the reference of the lamb, and Hassan’s cleft lip. Analyzing symbolism in this book could go far, there are many things to be said about the symbolism in this novel. The reason for using symbolism is becauseRead MoreAnalysis Of The Kite Runner By Khaled Hosseini789 Words   |  4 Pages â€Å"The Kite Runner† by Khaled Hosseini, is the complex story about a father and a son who struggled to find common ground. Amir was a conflicted boy trying to find his place while in search of redemption. He believed his father; Baba disliked him because his birth was the reason his mother passed. While Amir’s father favored the son of their family servant, Hassan. Amirâ€℠¢s friendship with Hassan was genuine until a tragic event Amir witnessed of Hassan and Amir did not step in to help. That crime againstRead MoreKite Runner Essay1002 Words   |  5 PagesThe Kite Runner Theme Essay Father-Son Relationship (Amir and Baba) Amir, who is the main character The Kite Runner, is a boy who always wanted the admiration and acceptance of his father, Baba. Baba and Amir cannot have the relationship Amir wants to have because of the characteristics that they have and do not share between each other. Amir wants to have Baba all to himself, and not share him with others, such as Hassan. Amir is weak in Baba’s eyes and Amir is not how Baba sees his son to beRead MoreTheme Of Forgiveness In The Kite Runner790 Words   |  4 Pagesand ends up being cyclical in The Kite Runner. For most of the novel, Amir attempts to deal with his guilt by avoiding it. But doing this clearly does nothing toward redeeming himself, and thus his guilt endures. That is why he still cringes every time Hassans name is mentioned. When Amir finds out about Babas betrayal of Ali (and subsequent betrayal of Hassan), he realizes that everything he thought he knew and understood about his father was false. And Amir himself feels betrayed. But Baba hasRead MoreA Literary Analysis of Internal and External Conflict in The Kite Runner by Khaled Hosseini838 Words   |  3 PagesHosseini’s writing of The Kite Runner, where the protagonists: Amir and Hassan must survive an ever changing cultural landscape; where corrupt governments and deceit are commonplace. Throughout the progression of the plot, the audience views a very different side of Amir, from a boy immersed in a world of affluence and privilege to a young gentleman; who returns to his homeland in Afghanistan to redeem his family’s reputation. The youth, adolescence and adulthood of Amir Khan clearly demonstrate conflictRead MoreThe Kite Runner-Socratic Motivation1310 Words   |  6 PagesAmanatullah English 2H P1 11 October 2017 The Kite Runner - Socratic Seminar Questions and Answers Supplementary Text Questions: Conflict --AOW: The Difference Between Guilt and Shame by Joseph Burgo What conflict do the two characters share, making themselves similar to each other? Do both Amir and Baba feel guilt and shame through their actions? In the novel, by Khaled Hosseini, the reader learns that both Amir and Baba have betrayed the people closest to them: Amir betrayed Hassan and Baba betrayed AliRead MoreThe Selfish Sacrifice910 Words   |  4 PagesThe Kite Runner by Khaled Hosseini is an unforgettable, powerful and heartrending novel of two friends bonded by childhood and of the forces that tear them apart. Amir, the protagonist, is a young boy who is constantly faced with the challenge to stand up for what is right, however, he always fails to fight his own battles and constantly depends on his friend, Hassan, for aid. Amir is emotionally unstable due to deprivation of love from his father, who is his only source of affection. He yearns to

The World And Its Economic Systems Essay - 2422 Words

PAPER The world and its economic systems been to, at an ever increasing rate. Over thousands of years civilization have developed the means to master resources, such as, land, water and even the heavens. Agriculture allowed the human race to no longer rely on migrant herds of animals, but to settle and look to the ground beneath them for a continued supply of basic needs. Dale and Carter argue, â€Å"both civilization and the enjoyment of civilization rest on the surplus production by those who supply the necessities of life† (1955, p. 9). Once that point in the creation of a society is reached, others are able to veer away from the trade agriculture, specializing in other pursuits valuable to a community. Early examples of this scenario playing to its actors benefits include the Mesopotamians and Egyptians. Farming, specifically a surplus of food, allowed for humans to focus on other pursuits that would further advance the progress of a given community. With the growth in avai lable pursuits, Ellen Wood believes â€Å"an [evolution] of the division of labor †¦ accompanied by technological improvements in the instruments of production† allows for commercial development within a society to take place (1999, p. 5-6). Growth will continue to compound on itself, bar no external interferences - such as drought, famine, plague. With growth came trade of goods. People were placed in a situation in which, as profit-maximizing beings, needed to now exchange their own specific productShow MoreRelatedThe Political And Economic System Of The World2338 Words   |  10 PagesIn the wake of WWII, peace was the main goal sought out by the entirety of the world. However as the twentieth century hit its halfway mark, the conflicting ideals of two countries dragged the world into a tense struggle for power and international identity yet again. The United States of America (USA) and the Union of Soviet Socialist Republics (USSR), were now in a competition to sw ay the rest of the world’s unaffiliated nations. This political, ideological, scientific and military effort wouldRead MoreEconomic Growth And The On Building A World Class Education System1416 Words   |  6 Pageson building a world class education system and research facility right now in Singapore? This are some of the government’s polices to overcome the shortage of things or scarcity so as to achieve a projected growth for the economy. This essay will be discussing on some government (mainly Singapore) policies that can be implement to achieve economic growth and the author’s opinion as to how beneficial these policies are to the economic growth of the country. 2. Key factor to Economic Growth WithRead MoreThe Industrial Revolution And The World s Dominant Economic System1652 Words   |  7 Pagescentury through the second quarter of the XIX century. A characteristic feature of the Industrial Revolution was the rapid growth of the productive forces on the basis of large-scale machine industry and the adoption of capitalism as the world s dominant economic system. The transition to progressive scientific methods of large-scale agricultural production demanded substantial enlargement of sown areas, which in turn led to a rapid increase in yield and productivity of the agricultural labor. As sanitationRead MoreWorld War I : The Aging Political, Economic, And Governmental Systems Of The World1682 Words   |  7 Pages World War I was without a doubt one of the defining event of the 20th century. It turned America into an industrial power, tore down the dying empires of Europe, and led the world into the Modern Age. One would think that this war, with how destructive it wa s, would be conventional in its declaration, or reasons for it, but this it was, in fact, very different from how and why wars now might be declared. The aging political, economic, and governmental systems of the time acted as a very intricatelyRead MoreThe Economic Crisis Of The Financial Systems Within Developed Countries Affected Economies Across The World2024 Words   |  9 PagesTask 1 The economic crisis which erupted from the financial systems within developed countries affected all economies across the world. There was a significant amount of job losses, company bankruptcies and cuts in incomes and budgets (McKibben, Stockel 2009). Companies were focusing on sales growth which took urgency over most workplace including learning and development and many trying to decide what was important in terms of return on investment (Dullien et al 2010). Training and developmentRead MoreSolution to the Current Global Economy: Judaism and Economic Reform, by Norman Solomon1103 Words   |  5 PagesIn the essay â€Å"Judaism and Economic Reform†, Norman Solomon, a Jewish-American journalist, presents a compelling argument on the basis of the need for economic reform while providing simple religious base solutions. While discussing two major economic problems that plague the world’s current economy, Solomon introduces the Jewish view of the global economy and their general view on economics as a whole. With this introduction to the Jewish worldview of economics we as readers are able to transitionRead MoreMaritime Transportation Systems : Maritime Transport System Essay1311 Words   |  6 PagesMaritime Transportation System Maritime Transportation System or MTS is one of the critical infrastructure systems that promote economic activity by enabling the transfer of goods between national and international destinations throughout the globe. As a result of its role in promoting economic activity, Maritime Transportation System is one of the most important elements for the United States national security. However, maritime systems have become increasingly vulnerable to risks that couldRead MoreThe Problem Of National Self Reliance Essay1473 Words   |  6 Pagesseems that economics reveals the weakness in humanity s attempts to both unite as one larger whole, and to maintain separate national identities. Efforts to create a unified front, are slow and challenged by Westphalian conceptions of state sovereignty. Efforts to preserve states individuality and self-reliance reveal the human suffering that was commonplace before globalization began to smooth out the economic extremes experienced in localized areas. All politics, and economics, are local butRead MoreDependency Reduces Conflict1344 Words   |  5 Pagesapparent in the new world economic and international system. The creation of interdependence not only reduces the probability of war between nations but it allows for more peaceful resolutions. This essay will focus on firstly understanding the way in which economic interdependence is possible (embedded liberalism), highlighting issues of what would happen if this system weren’t in place and finally how this system renders war an unattractive solution. Economic globalization and economic integration doesRead MoreThe World Of World War I1293 Words   |  6 Pagesto the beginning of World War I, the world economy was held up by four pillars: the gold standard, free trade, communication and transportation, and capital and labor labor mobility. After facing two world wars and a worldwide economic depression, economists and governments from around the world implemented several development strategies. Some strategists tried to rebuild the order from before World War I in a more flexible and stable way while others bucked the traditional world order all together

Data Mining for Business Applications -myassignmenthelp.com

Question: Discuss about theData Mining for Business Applications. Answer: Introduction The need to collect more data from people that end up being personal information is prevalent in todays generation (The conversation, 2016). Such information is later analyzed and stored using super computers as magnanimous sets of data known as big data and at times may end up falling into the wrong hands making the owners of such information vulnerable to abuse and insecurity for that matter. However, big data has huge benefits as it has the power to revolutionize and transform the lives of people due to its predicting power (The conversation, 2016). It would feel great where someone knows what the weather will be with utmost accuracy like 24 hours before the actual event occurs (The conversation, 2016). However, there many risks and threats that may arise in the use of big data as due to the possibility of being utilized maliciously, more so for individuals who are ardent users of the internet and as such spend much time browsing and surfing the internet. Analysis Major security issues The stakes are getting bigger due to a large number of individuals engaged in security incidents that involve big data. In 2014 alone saw Arkansas University development system got breached and saw more than 50000 people fell victims as a result of the breach (The conversation, 2016).50000 people were a large number but It would more devastating if it was extended to more than 100 million people where email addresses, birth dates among other things were stored fell into the wrong hands or got stolen at eBay at the same time. According to professional experts insecurity issues, it is more task daunting trying to protect big sets of data. The reason behind such an explanation is the fact that nature of the technology used in storing and processing such data is complex and sophisticated. Companies such as Amazon that use and depend on distributed computing which entails dispersion of data centers geographically across the globe may be vulnerable to security risks(The conversation, 2016). Amazon as its global operations distributed in twelve regions and each of these regions as a data center making such centers susceptible to physical attacks as well as consistent cyber-attacks targeting servers in tens of thousands. It has always been pointed out by IT experts that a single point of access is important in ensuring security measures are guaranteed and is also one of the strategies employed in ensuring information is controlled(The conversation, 2016).It also argued that it is easier when one access point is made as opposed to having other hundred access points. On the contrary, big data is seen to operate in the opposite direction to the above-stated principle of a single access point has it has numerous access points distributed geographically(The conversation, 2016). The susceptibility of big data spreads far beyond because of its big size and the many access points in various locations. Also, another challenge originates from software components that are complex ignoring security issues, and that entails infrastructure from big data companies and as such leads to open positions that lead to attacks(The conversation, 2016).A good example is the Hadoop, a software which is a collection of components that allows programmers that are carrying massive amounts of data process such information using a computing framework. When Hadoop was being launched, it had features that were considered as basic that could support just a few individuals(The conversation, 2016). Many companies, however, have continued to use Hadoop in their data platform despite the fact that Hadoop was only built with the intention of supporting small scale operations. Ethical implications in data mining It is the duty and the role of consumers to ensure that they raise concerns and demands for a heightened level of data protection by having signed agreements and terms and conditions from institutions collecting and using data such as big data(The conversation, 2016). The use of encryptions, systems of intrusion detection and incorporation of auditing and control of access are some of the countermeasures employed to curb and prevent information from getting breached and falling into the wrong hands. Such security measures help in ensuring and promoting privacy of many clients. Despite the fact that heightened security is preferred in ensuring security measures are enhanced, it has been found that it can hurt peoples privacy as it creates legitimate reasons for collecting private information(Yu Zhang, 2008). Such information entails surfing the web for employees on computers at work places. It has been found out that when security agencies are involved in the process of collecting information while trying to boost security all the stakeholders are branded as terrorists or criminals and the information collected may be used to build cases against them. Although authorities possess and have knowledge about people, they could instruct companies such as Apple and Google to give them more information and intelligence such as versions of data that are decrypted. Also, issues such as the terms used in search engines and the online buying habits could be provided by such companies to the authorities. One of the major principles employed in justifying such kind of surveillances is that no one can be trusted. According to such principles, they have been found affordable and also more feasible as result of big data using such formidable technologies(Soares Ghani, 2010). Surprisingly, it is evident that after collection of such information, it joins the rest of the data leaving and creating room for future breaches as portrayed in snooping cases at national level. Another privacy issue of concern is that big data companies track every move of consumers aiming to establish targeted advertising. As such tracking becomes cheap and easily analyzed. The personality Insights from IBM could build a profile of the customer extending beyond demographics information. Conclusion However, data when used properly it can enhance efficiency in privacy by giving more information that gives better quality in terms of preventing cyber-attacks(The conversation, 2016). For instance in real world people do not have to worry about phishing since big data analytics can detect such mails as malicious. References Soares, C., Ghani, R. (2010). Data mining for business applications. Amsterdam: IOS. The conversation. (2016). Big data security problems threaten consumers' privacy. Retrieved August 19, 2017, from The Conversation: https://theconversation.com Yu, P., Zhang, C. (2008). Data mining for Business Applications. Dordecht: Springer.

The Hardboiled Qualities and Features in Detective Stories

Hardboiled literary style in crime fiction writing is associated with detective stories. It is often distinguished by the cynical interpretation of sex and violence in the literature. Caroll John Daly is credited to be the pioneer of hardboiled crime fiction style writing in the mid 1920s with his â€Å"Knights of the Open Palm† published on June 1,1923 in Black Mask Magazine (Nolan, 273).Advertising We will write a custom essay sample on The Hardboiled Qualities and Features in Detective Stories specifically for you for only $16.05 $11/page Learn More Hardboiled fiction writing was popularized by Dashiell Hammett with his character Sam Spade in The Maltese Falcon, over the course of time in the late 1930s Raymond Chandler refined hardboiled writing through his Philip Marlowe in The Big Sheep ( Collins, 153 – 154). This paper aims to illustrate the hardboiled qualities and features of detective stories in analysing the three most notable au thors’ characters in their novels namely Sam Spade of Dashiell Hammett’s The Maltese Falcon, Philip Marlowe of Raymond Chandler’s The Big Sheep and Kinsey Millhone of Sue Grafton’s A for Alibi. Dashiell Hammett started the hardboiled writing trend in detective stories through his character Sam Spade in his The Maltese Falcon novel. Hammett through his novel portrayed Spade as someone who has a cold detachment to the situation he is in and with the people he is with. Spade, though he displays several similar features of other detectives such as his keen eye for details and unwavering determination to accomplish justice, the character’s hardboiled qualities is depicted in his selfish, bitter and sardonic personality. In The Maltese Falcon novel, Spade was having an affair with his partner Miles Archer’s wife, a portrayal of his antagonistic and self-centred nature. His aloof personality together with his cold emotionless isolation from matters are displayed upon the discovery of several murders namely that of Archer and Thursby in which Spade was found to be one of the suspects. He lets everyone, including the police, the criminals, and other characters in the novel believe that he is indeed one of the law offenders while he single-mindedly works on solving the case on his own. Though Sam Spade’s character was able to do the noble thing at the end of the novel, his actions depict him as someone who only does so because of self-interest. Hammett never showed his readers the characters inner thoughts in which what was said and done by the characters were already the factors that shape them thus Spade’s morality was questionable. In Spade’s case it was ambiguous if he really displayed the usual hardboiled characteristic of detectives who pose idealism underneath their hard cynical shells.Advertising Looking for essay on literature languages? Let's see if we can help you! Get your first paper with 15% OFF Learn More The Big Sheep was Raymond Chandler’s first novel in his series about the adventures of Philip Marlowe. Chandler’s character, Philip Marlowe is indeed a true hardboiled character in which underneath his sceptical, hard drinking, tough persona Marlowe is thoughtful and idealistic. His character’s soft side is portrayed in his enjoyment of simple pleasures such as the playing of chess and his love of poetry. Marlowe’s contemplative nature surfaces when he sets scores through other means rather than violence. In the novel, The Black Sheep a scene were Carmen Sherwood had a gun and shot Joe Brody but missed, Marlowe quickly confiscated the deadly weapon from Sternwood and told her to go home, this was a display of Marlowe’s evasion from hostility. He is careful in thinking things through before making a statement or stance. In terms of his morality, Philip Marlow is decent for he was stern in avoiding the tactics and temptati ons brought about by the femmes fatale of the novel, Vivian and Carmen Sternwood. Both sisters tried to seduce Marlowe for instance when Vivian was saved by the detective from an apparent mugging, he drove her to the beach resulting to her advancing towards him, while Carmen found herself waiting for Marlowe to arrive home in his bed naked. In both instances Marlowe refused the ladies advancements. Unlike the first two novels discussed above, Sue Grafton’s lead character in her novel, A for Alibi, is a woman in the form of Kinsey Millhone. Millhone fits the hardboiled qualities and features needed in detective stories through her lonesome nature developed as an orphaned child, her tough persona in her case dealings and her idealism underneath her hard shell of cynicism which is slowly revealed in her encounters with family members. Grafton’s Kinsey Millhone is significant in the hardboiled detective world because gender equality is illustrated in the novel. The notion of equality among men and women is being tacked here in that what other male protagonist can do, Millhone, a female lead can also do. Though the personality of Grafton’s character had been adjusted to fit that of a woman, her primary characteristics are similar to those of male protagonist in usual hardboiled fictions such her morality struggles in having her own â€Å"femmes fatale† in the form of Charlie Scorsoni whom Millhone was involved with even if he was still in her suspect list, her tough girl attitude sometimes associated by her being tomboyish but her idealistic side also surfaces when she secretly yearns for comfort of a loving relationship whether be that with her family or with a man. Works Cited Collins, Max Allan. The Hard-Boiled Detective. Ed. William DeAndrea. Prentice Hall, 1994. Print.Advertising We will write a custom essay sample on The Hardboiled Qualities and Features in Detective Stories specifically for you for only $16.05 $11/p age Learn More Nolan, William. The Black Mask Boys: Masters in the Hard-Boiled School of Detective Fiction. William Marrow and Company, 1985. Print. This essay on The Hardboiled Qualities and Features in Detective Stories was written and submitted by user Jazmine Callahan to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Effect of concentration of copper sulphate on the action of amylase to break down starch Essays

Effect of concentration of copper sulphate on the action of amylase to break down starch Essays Effect of concentration of copper sulphate on the action of amylase to break down starch Paper Effect of concentration of copper sulphate on the action of amylase to break down starch Paper There are two ways that we could have consumed copper sulphate. Water pipes are responsible for transporting water, and some of them are made out of copper. Copper pipes can become rusted if there is high sulphate content in the water, basic copper sulphate is precipitated which can grow through the pipe wall creating pit holes [1]. Copper sulphate is also used in some places to treat sewer lines, tree roots are constantly looking for water and organic sources and sewer lines are the perfect site for them. Tree roots will penetrate and damage the pipes which will is expensive to repair. Copper sulfate kills tree roots without killing the tree or other plants [2], therefore copper sulphate is poured into these pipes to kill the tree roots. This way there is a small chance that copper sulphate will leak into the pipes that are used for drinking. Copper sulphate can do a lot of harm to the human body, but very little has been discussed on the effect of copper sulphate on amylase, which is an enzyme that is present in human saliva and in the small intestines, therefore I want to perform an experiment to find out how the concentration of copper sulphate will affect the action of amylase. Copper sulphate Copper sulphate has the formula CuSO4 and is commonly used to control fungus diseases [17], both in agriculture and medicine. According to the Turkish Journal of Zoology (source 16), copper sulphate can inhibit the activity of amylase by 5%. Enzymes- Alpha Amylase Enzymes are biological catalyst, and a catalyst is substance which speeds ups a chemical reaction but remains unchanged itself at the end. [71] Enzymes are biological catalyst because they are globular protein molecules that are made by living cells to speed up reactions inside a living organism. There are three levels of structure of enzyme; the primary, secondary and tertiary structure. The primary structure is the order and type of amino acids that made up the chains. The secondary structure is the folding of the chains into either beta sheets or helix. The tertiary structure is the overall folding of the chains into a three dimensional, globular shape with an active site of a specific shape. Amylase is an enzyme made in the salivary gland and pancreas in the human body. They are used to break down carbohydrates, in other words starch are broken down to sugar or glucose [8]. Enzymes are sensitive to its environment, changes to the pH and temperature will affect the structure and function of enzyme, and therefore these factors have to be kept the same during the experiment. How does an enzyme work? Being a biological catalyst, enzymes work by providing an alternative pathway that has a lower activation enthalpy for reaction to take place therefore speeding up reactions without changing any other factors such as temperature and concentration. Many reactions in the body will not happen at all because the activation enthalpy is too high to reach, therefore the presence of enzymes are vital in every organisms for reactions to take place and to stay alive. The first proposed theory of how the enzyme work is called the lock and key hypothesis, where the substrate is imagined being like a key whose shape is complementary to the enzyme or lock. [72] The substrate will fit into the active site of the enzyme and will form an enzyme-substrate complex. Once this complex is formed, bonds within the substrate will be affected by the bonds in the enzyme; bonds will break and reform, ultimately forming products. The products will then leave the active site of the enzyme, leaving the enzyme free again to accept another substrate. The diagram below shows how the enzyme works. A diagram showing how enzyme works Induced fit hypothesis However this is not completely true, by using technique such as X-ray crystallography and computer assisted modeling [73], we can say that the active site is actually not a perfect fit to the substrate. So when the substrate approach the active site, either the shape of the substrate or the shape of active site will change slightly so they can fit precisely together. In addition, the active site could be modified as substrate interacts with the enzyme. The amino acids which make up the active site are moulded into precise shape which enables the enzyme to perform its catalytic function effectively [74]. The diagram below illustrates the induced fit theory, the shape is different when there is no substrate bonded to it and when there is substrate bonded to it. A diagram showing the induced fit theory Enzyme inhibition There are molecules that exist which act as enzyme inhibitors. They will disrupt the normal function of the enzyme, preventing it from working so the rate of reaction will decrease, or no reaction at all. There are two forms of inhibitions; competitive and non-competitive inhibitions. Competitive inhibition Competitive inhibitors will compete with the substrates for the active sites of the enzyme. This occur when a structure which is sufficiently similar to that of the normal substrate to be able to fit into the active site [75]. As the active site is occupied by the inhibitor, the substrate cannot bind to the active site to get catalysed, so rate of reaction is decreased. However, a competitive inhibition is usually reversible if sufficient substrate molecules are available to ultimately displace the inhibitor [12]. Non-competitive reversible inhibition The inhibitor has not got a complementary shape to the active site of the enzyme; it will bind to other parts of the enzyme instead. The binding of the inhibitor to the enzyme will have no effect on the ability of the substrate to bind to the enzyme, but it makes it impossible for catalysis to take place [76]. Unlike the competitive inhibitor, the rate of reaction will not be affected by the concentration of substrate. Non-competitive irreversible inhibition This type of inhibitor is non-competitive because it has not got a complementary shape that can fit into the active site of enzyme, so will not compete with the substrate for the active site, and the inhibition is irreversible. Heavy metal ions are typical of this type of inhibitors. They will combine permanently to the sulphydryl (-SH) groups. This could be in the active site or elsewhere [13] of the enzyme. The metal ions replace the hydrogen in -SH to form -SX. This will alter the structure and active site of the enzyme permanently, therefore enzymes can no longer catalyse the break down of starch. The diagram above shows the how heavy metal ion, in this case silver, will substitute hydrogen to form -SAg bond. This will alter the shape of active site so the substrate can no longer fit into it to get catalysed. As mentioned above, heavy metal ions are typical of this type of inhibition; copper is a heavy metal ion, so if copper sulphate does inhibit the action of amylase, I can conclude that copper sulphate is a non-competitive irreversible inhibitor. The collision theory The collision theory explains how reactions occur. Two particles can only react together if they come into contact with each other. They first have to collide, and then they may react [21]. They may react because colliding particles need to satisfy two requirements to cause a successful collision or reaction. The orientation of collision When two particles collide together, they need to have the right orientation when they come into contact for them to react. The diagram below illustrates this. There are four different orientations of collisions with enough energy for a successful collision to happen. However only collision 1 results in a successful collision, this is because it has the right orientation to collide with the bond which results in a successful collision, the particles in the other three collisions will simply bounce off each other [21]. Energy of collision The second requirement for a reaction to take place is that particles must collide with a certain minimum energy, called the activation energy [21]. Without sufficient energy, the two particles will simply bounce off each other after they collide. The activation enthalpy of a reaction is shown below. Starch and iodine solution This is a test for the presence of starch in a solution. When iodine solution is added to a solution contatining starch, a blue black colour will form. This is because the amylose, or straight chain portion of starch, forms helices where iodine molecules assemble, forming a dark blue/black color. [15] This means that when starch is being broken down by the amylase, the amylose will start break down too into smaller units, therefore losing the helics shape around the iodine molecules, the blue-black colour will then start to disappear. I can exploit this characteristic in my experiment to dertermine the end point. Using a colorimeter to monitor the light absorbance, I can determine the rate of reaction as it is the same as how quickly the solution decolourises.

Book review( Leadership tool kit) Bryn Hughes Essay

Book review( Leadership tool kit) Bryn Hughes - Essay Example Hughes’ observes that leaders should explore motives and outline key result areas amongst other things. In essence, Hughes does not only dwell on ethical leadership, but also on professional competence in leadership. He seems to affirms strongly that leadership is God chosen and should be treated with the seriousness and responsibility it deserves. Hughes sees leadership as a state of mind of a person who is visionary and spiritual. He also sees leadership to be defined by sound character. The author also analyses that good motives of a leader should be to share with other so that they can achieve together as a team. His understanding of motives is leadership is also pegged in Bible teachings on leadership. He analyses in various ways that proper motives are the key drivers for any success as a leader. One may see that although he focuses on doing the right thing from the Biblical context of righteousness, his leadership tools also blend well in the context of organizations in the contemporary societies. One may also note that when Hughes explains the concept and the relevance of motives to Christian leadership, he also captures on the teachings of Jesus about what constitutes sins. Jesus on His part observes in the Bible (Mathew 5:28) that whoever has looked at a woman lustfully has committed sex with her. One may say that it is in this regard that Hughes focuses and emphasizes on good motive. Although he does not dwell on the subject with very specific examples, it is understandable that anything that does not constitute God’s will is morally wrong for Christian living. This way, he observes, leaders are able to improve themselves as individuals and improve their teams. The author emphasizes that Christian leaders are should work hard towards acquiring these skills in contemporary society. In order to achieve this, the author rightfully recognizes that there is a need to identify key result areas. Hughes offers that leaders should have the drive and the desire to achieve. They do this through a display of effort in the various areas that they have identified as areas of need. When there is a strong desire to take or accept responsibilities, then a leader is on course. Leadership that is concerned about not just tasks to be completed but also demonstrates which tasks is preferable. Hughes seems to assert that proper leadership would involve being efficient at allocated tasks through proper facilitation and motivation (Hughes, 2002, p. 34). The leader should demonstrate a high morale through involvement with his/her team. This is observable through proper coordination. Other key result areas include being supportive, participative and directive. Churches can enhance leadership by training leaders at various levels to be supportive in their various involvements. Sometimes things not work out as expected. Hughes offers that leaders should support others especially by recognizing the effort put into it. Most importantly, they s hould offer support on various tasks on progress as might be necessary. It is also important that leaders acquire skills through actual participation in the various areas of involvement in the church leadership. While working in their teams, the author also offers that there is a need for leaders to be trained to be visions creators. Visionary leaders are capable of come up with new ideas that will help in goals setting and eventual action plan.

Ecology and Christian Theology Essay Example | Topics and Well Written Essays - 250 words - 1

Ecology and Christian Theology - Essay Example Sea levels are rising and closer to home, Australia is faced with water restrictions, greater droughts and more extreme fire days; all because of climate change. The impacts of climate change if left unchecked will increase poverty. Poor people in developing countries are more vulnerable to the  impacts of climate change, yet they have done little to contribute to it. Australian average temperatures have increased 0.9 °C since 1950, with significant regional variations. The frequency of hot days and nights has increased and the frequency of cold days and nights has declined. Since 1950, most of eastern and south-western Australia has experienced substantial rainfall declines. Across New South Wales and Queensland these rainfall trends partly reflect a very wet period around the 1950s, though recent years have been unusually dry. In contrast, north-west Australia has become wetter over this period, mostly during summer. From 1950 to 2005, extreme daily rainfall intensity and frequ ency has increased in north-western and central Australia and over the western tablelands of New South Wales, but decreased in the south-east and south-west and along the central east coast. Global sea levels rose by about 17 cm during the 20th century, and by around 10 cm from 1920-2000 at the Australian coastal sites monitored. Substantial warming has also occurred in the three oceans surrounding Australia, particularly off the south-east coast and in the Indian Ocean. In the film, An Inconvenient Truth, Al Gore begins his slide show on climate change; a comprehensive presentation replete with detailed graphs, flow charts and stark visuals. Gore shows off several majestic photographs of the Earth taken from multiple space missions and he notes that these photos dramatically transformed the way we see the Earth, helping spark modern environmentalism. Throughout the movie, Gore discusses the  scientific opinion on climate change, as well as the present and future  effects of