Eros, Thanatos and the Depiction of Women in “a Farewell to Arms” Essay Example for Free

Eros, Thanatos and the Depiction of Women in â€Å"a Farewell to Arms† Essay A career as distinguished as that of Ernest Hemingway cannot simply be condensed into a handful of words. If one were to make the attempt anyway, no choice seems to be more fitting than â€Å"love, death and women†. These topics are constant companions throughout all of his work and indeed, his life. His 1929 masterpiece, â€Å"A Farewell to Arms†, is a particularly good example of this. In this paper, I will show how these recurring subjects – the fascinating interplay between Eros and Thanatos and the depiction of women – help shape this seminal work. To fully appreciate the tale told in the novel, and to better understand the aforementioned, seemingly inadequate three-word summary of Hemingway’s life, some key events in his biography should be made known. Ernest Hemingway was born on July 21, 1899, in Oak Park, Illinois. In his high school years, he wrote for the school newspaper and would go on to work for the Kansas City Star; these early journalistic experiences would influence his distinctive writing style. In 1918, he signed on to become an ambulance driver in war-torn Italy. On July 8, he was severely injured by a mortar shell and received a medal for bravery. During his sixth-month recuperation, he fell in love with a Red Cross nurse; after deciding to get married, she left him for an Italian officer. This traumatic experience would decisively shape his view of women. (â€Å"Wikipedia†) Hemingway would endure further trials throughout his life; shortly after the particularly difficult delivery of his son in 1928, he received word of his father’s suicide, foreshadowing his eventual demise by his own hand on July 2, 1961. Until then, he suffered through severe alcoholism, multiple divorces, crippling accidents, bouts of depression and dangerous war coverage. (â€Å"Wikipedia†) Taking this eventful existence into consideration, the importance of both Eros and Thanatos and the noteworthy depiction of women in â€Å"A Farewell to Arms† come as no great surprise; it is the latter which I will first examine more closely. Hemingway and, by extension, his works, have often been accused of misogyny; â€Å"A Farewell to Arms† is no exception (Wexler 111). Catherine, the main female character, â€Å"defines herself in terms of men† (Fetterley 67). When her late fiancee goes to war, she joins him as a nurse because of the â€Å"silly idea he might come to the hospital where [she] was [,] [w]ith a sabre cut [†¦] [or] shot through the shoulder [;] [s]omething picturesque† (Hemingway 19). Later on, her stereotypical wish to nurse her lover back to health even comes true when Frederic is placed in her care (Fetterley 67). She also shows a significant need for reassurance: â€Å"You are happy, aren’t you? Is there anything I do you don’t like? Can I do anything to please you? † (Hemingway 105). Her self-loathing and unhealthy self-image also reveals itself in this telling passage: How many [girls] have you [†¦] stayed with? [†¦] It’s all right. Keep right on lying to me. That’s what I want you to do. [†¦] When a man stays with a girl when does she say how much it costs? [†¦] I do anything you want. [†¦] I want what you want. There isn’t any me any more. (Hemingway 95-96) This section is a particularly damning example of misogyny; in effect, Catherine is asking Frederic how to be a whore, demeaning both herself and her entire sex in her quest to please her beloved at any cost (Fetterley 68). Catherine is far from the only victim of the sometimes debasing treatment of women in the book. During the retreat, the â€Å"girls from the soldiers’ whorehouse† (Hemingway 168) are loaded into a truck; one of the soldiers present remarks: â€Å"I’d like to be there when some of those tough babies climb in and try and hop them. [†¦] I’d like to have a crack at them for nothing. They charge too much at that house anyway. The government gyps us. † (Hemingway 168-169) This stunning disdain of female dignity makes apparent the utter disregard the soldiers have for women as human beings. A passage later on exemplifies this victimization and objectification of women during war even more clearly; when the retreating convoy picks up two virgins, their fearful demeanor leaves no doubt: there are only two roles for them on the battlefield – â€Å"whores if they are picked up by their own side, victims of rape if they are captured by the enemy†. (Fetterley 50) The contempt of the fair gender does not stop at the disparagement of women themselves; the very thing that makes them female is attacked. When the â€Å"gray leather boxes heavy with the packs of clips of thin, long 6. 5 mm. cartridges† are described as making the troops look â€Å"as though they were six months gone with child† (Hemingway 4), deadly implements of war are directly linked to pregnancy. This paints an unsettling picture of female biology itself as a source of death, not life, culminating in Catherine’s passing in the final chapter (Fetterley 62-63). This depiction of women as subservient to men, trying to fulfill their every need, is almost Puritanical in nature, hearkening back to the earliest, primary incarnations of the American myth. The fact that sexual gratification, not conception and childbirth – which is indeed presented as a â€Å"biological trap† (Hemingway 125) and, eventually, a death sentence – is extolled as the primary reason for a relationship shows, however, that Hemingway’s work is firmly in the subversive consummatory phase. Thankfully, the view of women presented in the novel is not wholly sexist. Catherine in particular manages to distinguish herself as a strong woman both in the beginning and the end of the novel, despite losing her identity to Frederic in the middle. Frederic’s courtship of Catherine starts with a literally stinging rejection; when he first tries to kiss her, he is rewarded with a â€Å"sharp stinging flash† of a slap (Hemingway 24). Thus, Catherine asserts her dominance, taking control of their early relationship. After Frederic manages to make her laugh, however, she quickly accepts his advances. (Wexler 114) Frederic’s intentions towards Catherine are less than noble to begin with: â€Å"I knew I did not love Catherine Barkley nor had any idea of loving her. This was a game, like bridge, in which you said things instead of playing cards† (Hemingway 29). Catherine, however, is not only aware of the deceptive nature of their faux-relationship, but actively addresses it: â€Å"This is a rotten game we play, isn’t it? [†¦] You don’t have to pretend you love me. † (Hemingway, 29-30) With the mutual acknowledgment of their pretense, Catherine is using Frederic just as much as he is using her – where he seeks to escape the horrors of the war with carnal gratification, Catherine needs someone to fill the hole left by her late fiancee. (Wexler 114-115) Despite the loss of self and neediness experienced by Catherine throughout most of the middle of the novel, her strong, confident side manages to reassert itself before her unfortunate demise in childbirth. Even though she faces her imminent death, the only thing on her mind is reassuring her husband: â€Å"Don’t worry, darling, [†¦] I’m not a bit afraid. It’s just a dirty trick† (Hemingway 292). This serenely selfless behavior is far removed from the desperate need to please she displayed earlier. As has hopefully become apparent, both death and life (or love, both physical and romantic) play a crucial role in â€Å"A Farewell to Arms†. In the following section, I will take a closer look at this compelling relationship between Eros and Thanatos. Since the novel takes place during the uncompromisingly brutal conflict that was World War I, Thanatos is always active. Eros always manages to weave its way into the proceedings, however, even gaining the upper hand at one point in the novel. In the beginning, however, Thanatos prevails (Flores 29). The reader is presented with uncompromising scenes of violence and carnage, but the horrors of war are met with stoicism by the protagonist Frederic Henry. The death of thousands barely qualifies for a single paragraph: â€Å"At the start of the winter came the permanent rain and with the rain came the cholera. But it was checked and in the end only seven thousand died of it in the army. † (Hemingway 4) Frederic also seems to have no particular reason for even being in the war; being in Italy seems to be enough (Flores 29). He is not driven by any particular ideological reason, either: â€Å"Abstract words such as glory, honor, courage, or hallow were obscene beside the concrete names of villages, the numbers of roads, the names of rivers, the numbers of regiments and the dates. †(Hemingway 165) Almost every character in the novel also engages in self-destructive behavior – excessive drinking. Seeking oblivion instead of actually facing the horrors of war, alcohol is a constant companion to all throughout the book (Flores 31). Even when Eros touches the characters in the beginning, it is only in its basest forms. The flirtatious Rinaldi seems incapable of real love, seeking only sexual gratification (Ganzel 587). And, as mentioned above, even the relationship of Frederic and Catherine starts out as a lie, filling a need in both of them not with love, but lust. As the story unfolds, however, the grip of Thanatos on Frederic begins to weaken. Following his injury on the battlefield, his stoicism and aloofness are only slightly fazed (Ganzel 594). During his extended period of recuperation in the hospital, Frederic and Catherine start developing real feelings for each other; learning about her pregnancy in particular shakes him to his core: â€Å"Her conception forces him into a continuum in which the death of another can subtract from his own life. † (Ganzel 579) During the Italian retreat, Thanatos tries to reassert its grasp on Frederic – but after not only witnessing, but being directly responsible for a number of deaths in a harrowing experience, he finally slips its grasp (Ganzel 595). Having truly fallen for Catherine, his new commitment to Eros is confirmed in his baptismal â€Å"farewell to arms† in the river. Frederic voices these new life-affirming thoughts after escaping the river: â€Å"I was not made to think. I was made to eat. My God, yes. Eat and drink and sleep with Catherine. †(Hemingway 206) Thanatos reclaims his power at the end of the novel after the deceptively light-hearted stay in Switzerland; in a cruel twist of fate, it is childbirth, the ultimate expression of Eros, that takes Catherine’s life, springing the biological trap and leaving Frederic to trudge out into the rain, forlorn (Ganzel 581). He poignantly laments his fate: â€Å"Poor, poor dear Cat. And this was the price you paid for sleeping together. This was the end of the trap. This was what people got for loving each other. † (Hemingway 283) Frederic is not the only one affected by an insidious turn of events like that, however; Rinaldi also becomes a victim of the biological trap, falling prey to syphilis (Hemingway 289). Thus, Thanatos is not only able to turn the lofty side of Eros – romantic love – against its followers, but even manages to turn its basest side into death. Thus, Frederic Henry is â€Å"the first completely developed example of what was to become Hemingways dominant motif: a man [†¦] who is forced to recognize the inevitability of death and the concomitant frustration of trying to secure something of value from its onslaught† (Ganzel 577). The â€Å"good soldier†, protected from feelings of loss and fear by an uncaring stoicism, loses his â€Å"gift† through love, only to reach the tragic realization that his newfound feelings can be turned against him. (Ganzel 578) This portrayal of life and death, distinctive of the â€Å"Lost Generation† of modernist authors, stands in stark contrast to earlier, romantic and playful depictions. Where Whitman is able to confidently boast â€Å"And as to you Death, and you bitter hug of mortality, it is idle to try to alarm me† (â€Å"Song of Myself† 1289), Hemingway’s view of death paints a much more sobering picture: If people bring so much courage to this world the world has to kill them to break them, so of course it kills them. The world breaks every one and afterward many are strong at the broken places. But those that will not break it kills. It kills the very good and the very gentle and the very brave impartially. If you are none of these you can be sure it will kill you too but there will be no special hurry. (Hemingway 222) Even spring, once the ultimate symbol of hope and life flourishing anew, is turned into a mockery of itself. As Eliot aptly puts it: â€Å"April is the cruelest monthâ€Å" (â€Å"The Waste Land† 1), bringing only death and desperation to Frederic and Catherine. Winter, on the other hand, once the harbinger of struggles and hardship for the first pilgrims that reached the shores of America, is shown as peaceful, quiet, serene: â€Å"It was a fine country and every time that we went out it was fun. † (Hemingway 269) The future, once viewed with optimism, a â€Å"Manifest Destiny† to look forward to, suddenly looked much bleaker, an outlook colored by a war that defied belief. Compassion and courage were nowhere to be found, but cruelty abounded, as illustrated in this passage: â€Å"’If there is a retreat, how are the wounded evacuated? ’ ‘They are not. They take as many as they can and leave the rest. ’† (Hemingway 167) In conclusion, I hope that the importance of the changing influence of Eros and Thanatos and the questionable portrayal of women in â€Å"A Farewell to Arms† has become obvious. These topics appear in all of Hemingway’s works, with varying importance. Much of the novel becomes clearer when viewed through the lens of Hemingway’s biography. Taking into consideration some of the key points of his life I mentioned in the introduction, the autobiographical tendencies of the book should emerge – perhaps helping to make his overt machismo understandable, if not palatable. Most importantly, â€Å"A Farewell to Arms† does an excellent job of showing the reader the sheer insanity and, through the author’s unique style, the stark reality of war. Hemingway himself put it quite succinctly: â€Å"Never think that war, no matter how necessary, nor how justified, is not a crime. †Bibliography: * Eliot, T. S. The Waste Land. Project Gutenberg. http://www. gutenberg. org/files/1321/1321-h/1321-h. htm (Last accessed: 13. 08. 2013) * Fetterley Judith. The resisting reader: A Feminist Approach to American Fiction. Bloomington, Indiana University Press, 1978. * Flores, Olga Eugenia. Eros, Thanatos and the Hemingway Soldier. American Studies International, Vol. 18, No. 3/4 (Spring/Summer 1980), pp. 27-35. * Ganzel, Dewey. A Farewell to Arms: The Danger of Imagination. The Sewanee Review, Vol. 79, No. 4 (Autumn 1971), pp. 576-597. * Hemingway, Ernest. A Farewell to Arms. London, Arrow Books, 2004. * Wexler, Joyce. E. R. A. for Hemingway: A Feminist Defense of A Farewell to Arms. The Georgia Review, Vol. 35, No. 1 (Spring 1981), pp. 111-123. * Whitman, Walt. Song of Myself. University of Toronto RPO. http://rpo. library. utoronto. ca/poems/song-myself (Last accessed: 13. 08. 2013) * http://en. wikipedia. org/wiki/Ernest_Hemingway (Last accessed: 13. 08. 2013)

Steps To Plan An Effective Business Presentation English Language Essay

Steps To Plan An Effective Business Presentation English Language Essay Business presentation is any presentation of factual information and its interpretation using the spoken word. By this definition, business presentations include much of the information and analyses exchanged daily in the conduct of business. Business presentations may be primarily informative, offering data without recommendations; or may be analytical, offering investigation and recommendations for solving a problem. No matter what kind of presentation it is, the presenter is responsible for showing relationships between his research findings and management objectives. Whenever a person plans, prepares, and creates a message to deliver to others, he makes a presentation. During these presentations, speakers may often need to convince the listeners that their findings are pertinent, valid, reliable, and useful to the organization and to the people they serve. Types of business presentations Informative- In this type of presentation the main objective is to educate the audience for example some new plan, products, services etc. Persuasive- These presentations are given to convince the people for a common viewpoint. These presentations are common to the various levels in the organizations. Motivational speeches or presentations in an organizations are also the example of this type. Group- These are the presentations given by the groups or teams to disclose their findings and results. Special occasion speech- This type of speech is given in honour or welcoming some special group or delegates or introducing another person to the audience. Steps To Plan an Effective Business Presentation Set Objectives What do you want the end result of your presentation to be? Do you want to convince people to buy something? Do you want to instruct them? The objective of your presentation will determine most of your substance; the simple act of writing down your objectives will make it that much easier to organize what youre going to say and when youre going to say it. Keep Audience in mind The next step is to keep in mind that to which type of persons you are to give presentation. Presenter must prepare its presentation which is understandable by the audience. For example if a sales person is selling a product to a labor class then he must use words as simple as can be used and avoid technical words if possible and also emphasize on demos and slides in layman language. Note Key Points The next step is to outline the main points of the presentation that you are going to present . This will be helpful when sometimes we get blank in between of the presentation. These key points are important because all the presentation revolve around the main idea of the presentation. Sequence Your Presentation Once you have an outline of all of the topics that you want to cover in your presentation then you need to determine the sequence of your presentation. A good way to do that is to use a simple flowchart which lays out the order of the ideas that youre going to present. Some people, usually hardcore PowerPoint users, prefer to use real storyboards where they produce mock-ups of each stage of the presentation. Determine What Visuals You Will Need The final step to preparing a presentation is to figure out what sort of visual aids youre going to need. You probably wont need a complicated visual for every single point of your presentation, but when it comes down to explaining something complicated, like how a business process works, then youre going to want to support yourself with a good visual. Importance of Business Presentation Planning It helps to explain the idea you want to convey in an effective manner. If presentation is good then it also acts as a tool of motivation. Means to connect to the stakeholders i.e. to provide information about new products or services. Means to share your business ideas. Steve Jobs Steve jobs is a great visionary and a great businessman or we can say a good dreamer. He is the co-founder of the well known brand APPLE INC. USA. He has developed products as Apple iphone, ipad, ipod, iMac etc. Another attribute for which Steve jobs was well known is his presentation skills, he is a great presenter and it was said that A Jobs presentation is like a carefully crafted, well-rehearsed performance that tells a story and shares a vision. He very much focus on selling dream not the product or services.   Steve Jobs Presentation Secrets 1. The Tagline. Steve Jobs positions every product with a Tag line that explains all the unique thing of the product. For example, Jobs described the Mac Book Air as the worlds thinnest notebook. This phrase appeared on his apple websites, presentations, and press releases of apple at the same time. 2. A villain. In every classic story, the hero fights the villain. In 1984, the villain, according to Apple, was IBM (IBM). Before Jobs introduced the famous 1984 television ad to the Apple sales team for the first time, he told a story of how IBM was bent on dominating the computer industry. 3. A simple slide. Apple products are easy to use because of the elimination of clutter. The same approach applies to the slides in a Steve Jobs presentation. Steve jobs believe in making simple slides , he never used bullets or lots of words in his presentation slides instead he use more pictures and images that are self explanatory. For example when he launched apple macbook air he displays it in an envelope. 4. A demo. Neuroscientists have discovered that the brain gets bored easily. Steve Jobs doesnt give you time to lose interest. Ten minutes into a presentation hes often demonstrating a new product or feature and having fun doing it. When he introduced the iPhone at Macworld 2007, Jobs demonstrated how Google Maps (GOOG) worked on the device. He pulled up a list of Starbucks (SBUX) stores in the local area and said, Lets call one. When someone answered, Jobs said: Id like to order 4,000 lattes to go, please. No, just kidding. 5. An Emotional moment. Every Steve Jobs presentation has one moment that neuroscientists call an emotionally charged event. The emotionally charged event is the equivalent of a mental post-it note that tells the brain, Remember this! For example, at Macworld 2007, Jobs could have opened the presentation by telling the audience that Apple was unveiling a new mobile phone that also played music, games, and video. Instead he built up the drama. Today, we are introducing three revolutionary products. The first one is a widescreen iPod with touch controls. The second is a revolutionary mobile phone. And the third is a breakthrough Internet communications deviceà ¢Ã¢â€š ¬Ã‚ ¦an iPod, a phone, an Internet communicatorà ¢Ã¢â€š ¬Ã‚ ¦an iPod, a phone, is you getting it? These are not three devices. This is one device! The audience erupted in cheers because it was so unexpected, and very entertaining. Humour and presentations In the business presentations humour is necessary but it must be in good taste. An original joke is better which the audience has never heard before. The joke must be related to the subject of the speech. If we take example of Steve jobs he uses humour in his presentations so that the audience may not get bored. This was his one of the skills in presentations thats why he was very popular in giving good or we can say awesome presentations. The 10 Presentation Tips of Steve Jobs Plan presentations with pen and paper. Storyboard the presentation first. Jobs initially prepares by brainstorming and white boarding ideas. Single sentence description for every service/idea. As an example, for the introduction of the Mac Book Air computer, Jobs said that it is simply, The worlds thinnest notebook. Create a villain that allows the audience to rally around the hero-you and your product/service. A villain doesnt necessarily have to be a direct competitor. It can be a problem in need of a solution. Focus on benefits. Your audience only cares about how your product or service enhances their lives. Make that connection. Stick to the rule of three. Almost every Jobs presentation is divided into three major parts. You might have 20 points to make in your presentation, but your audience will only remember three or four. Sell dreams, not your products or services. Jobs doesnt sell computers, he sells the promise of a better world. When he introduced the iPod, he said, In our own small way were going to make the world a better place. Create visual slides. Jobs dont use bullet points. Instead, he relies on photographs and images. When he unveiled the Mac Book Air, he showed an image of the computer fitting inside a manila inter-office envelope. Make numbers meaningful. Jobs always put large numbers into a context to make them relevant to his audience. The bigger the number, the more important to find an analogy or comparison that adds clarity. Use plain English. Steve jobs always uses simple English phrases in his presentations and rarely use jargon so it not create any confusion in the mind of audience. Practice, practice, practice. Jobs used to spend hours rehearsing the presentation and do it like a theatre performance artist. Conclusion We must learn from Steve jobs style of presentation. His presentations are not only of informative style but there is a complete mix of presentation styles such as motivational, humor etc. Generally for example most of people get bored in the presentations but it is the Steve job`s presentations that are well designed, planned, well structured sand also well rehearsed. One must fully take care when developing a business presentation because it is the presentation which tells about your dream, vision, product or services to the stakeholders and it is necessary to fully satisfy them to succeed in business. Key points to remember regarding presentations Be clear about your objectives Always keep in mind your audience Less is more. Research. Be concrete. Use Visuals.

Factors that Affect Enzyme Activity

Factors that Affect Enzyme Activity Venessa Daly Objectives: To determine the effect enzyme concentration has on catalase activity To study the effect substrate concentration has on the rate of catalase activity To establish the effect temperature has on the activity of catalase Introduction: Enzymes control almost all cellular reactions. Enzymes are large globular proteins that act as catalysts in biochemical reactions. A catalyst reduces the activation energy needed for a reaction to occur, thus affects the reaction rate. Enzymes are very sensitive, they are affected by temperature and pH. Enzymes work as catalysts by combining with a substrate at the active site to form the enzyme-substrate complex, this then breaks down to release the enzyme and the product. Enzymes are shape specific, which means only substrate molecules with the corresponding shape will combine with the enzyme. This is known as the Lock and Key theory. So, because of this many different enzymes can be present in a cell, acting at the same time but not affecting each other. Enzymes are recovered unchanged from reactions so they can be reused again and again. Eventually, the effectiveness of the enzyme decreases over time and must be replaced.   Enzyme activity can be measured by: measuring the rate of formation of a product and measuring the rate of disappearance of a substance. Catalase is an enzyme found in almost all living organisms. It is a very important enzyme as it prevents the build-up of toxic hydrogen peroxide in cells. It catalyses the decomposition of hydrogen peroxide to water and oxygen. 2H2O2 2H2O + O2 Enzymes are affected by enzyme concentration, substrate concentration and temperature. As enzyme concentration increases the rate of reaction also increases linearly. However, once it reaches a very high enzyme concentration, the substrate concentration reaches a rate-limiting and the rate stops increasing. As the substrate concentration increases, the rate also increases. At higher concentrations, the enzymes become saturated with substrate so there a very few free enzyme molecules. So, adding more substrate would make no difference. The enzyme activity increases as temperature increases until an optimum temperature is reached. Once the optimum temperature is reached, if the temperature is increased any more then there is a decline in enzyme activity. Enzymes become denatured at a high temperature, the enzyme can then no longer carry out its function correctly. Method: A fresh potato was peeled and cut into small cubes. 100g of the tissue was weighed out. The potato, 100ml of cold distilled water and a small amount of crushed ice was placed into a pre-chilled blender. This was then homogenised for 30 seconds at high speed. The potato mixture was filtered. The filtrate was poured into a 100ml graduated cylinder. Cold distilled water was added to bring the volume to 100ml. 100, 75, 50, 25, and 0 units/ml of enzyme concentrations were made up, (the total volume in each should be 40mls). 40ml of 1% H2O2 solution was placed into five different beakers. Forceps were used to fully immerse a glass fibre disc into the first of the catalase solutions (100 units/ml). The disc absorbed the enzyme solution for 5 seconds, it was removed and allowed to drain for 10 seconds. The disc was then dropped into the first beaker of H2O2. The time was then recorded from the moment the disc touched the surface to the moment it reached the surface again. This was done with two separate discs and the average time was got. This was then repeated for each of the enzyme solutions. The rate of reaction versus enzyme concentration was then plotted. 40mls of 0.1%, 0.2%, 0.5%, 0.8%, 1%, 5% and 10% hydrogen peroxide solutions we added to seven separate beakers. Forceps were used to fully immerse a glass fibre disc into 100 units/ml of the catalase solution. It was removed from the catalase after 5 seconds and allowed to drain for 10 seconds. The disc was then dropped into the 0.1% hydrogen peroxide solution. The time was recorded from the moment it touched the surface to the minute it reached the surface again. This was done twice with two separate discs and the average time was got. This was done using all the substrate solutions. The rate of reaction versus substrate concentrations were plotted. Water baths were set up at the temperatures: 0oC, 150C, 250C, 300C, 370C, 450C and 600C. 40mls of 1% hydrogen peroxide and 40mls of enzyme solution were incubated separately at each of the temperatures for 5 minutes. After the 5 minutes, a glass fibre disc was fully immersed into the enzyme solution for 5 seconds at 00C, using forceps. It was then removed and allowed to drain for 10 seconds before the disc was dropped into the beaker of the hydrogen peroxide. The time was recorded from the moment it touched the surface to the moment it reached the surface again. This was done twice using two separate discs each time at each temperature. The rate of reaction versus temperature was then plotted. Results: Concentration Time Average Time 1/Time 25% 22 22 22 0.045455 50% 15 14 14.5 0.068966 75% 14 12 12.5 0.08 100% 10 8 9 0.1111111 Concentration Time Average Time 1/Time 0.1% 46 42 44 0.022727 0.2% 32 29 30.5 0.032787 0.5% 18 16 17 0.058824 0.8% 14 12 13 0.076923 1% 8 10 9 0.11111 5% 5 3 4 0.25 10% 2 1 1.5 0.666667 Temperature (0C) Time Average Time 1/Time 0 16 15 15.5 0.064516 15 13 11 12 0.08 25 10 11 10.5 0.095238 30 10 9 9.5 0.105263 37 5 8 6.5 0.153846 45 9 15 11.5 0.08 60 149 157 153 0.006536 Discussion:       The effect the change of enzyme concentration had on the reaction time of catalase activity can be observed from the graph and table (a). When the enzyme concentration was 25%, the rate of reaction was 22 seconds. However, when the enzyme was at 100% the reaction occurred within 9 seconds. This was a difference of 13 seconds and a concentration change of 75%. The reason there was such a difference in the rate of reaction was because there was more enzyme concentration than substrate so the enzymes could easily react. The change of concentration in the substrate had a huge effect on the rate of reaction of catalase, this can be observed from table and graph (b). The reaction time was 44 seconds when the substrate concentration was 0.1%. When that concentration was 10% the reaction time was a quick 1.5 seconds. This proves that as the concentration of substrate increase so does the rate of reaction. However, if the concentration was continued to be increased eventually there would be very little free enzymes left so the rate of reaction slows down. It is clear from the table and graph (c) that enzymes optimum temperature is 37oC. The rate of reaction increases as the temperature increases up to 37oC, any temperature increase after that causes the rate of reaction to decrease. The enzymes begin to denature in any temperature higher than their optimum temperature. Conclusions: It is very important to understand what affects the rate of reaction in relation to enzymes in catalase activity. Enzymes control nearly all biological reactions, so this means it controls anything from digestion to tissue repair in the body. Enzymes are commonly prescribed to animals when a body process isnt functioning properly. So, it is essential to know what factors affect the productivity of enzymes to enable the correct treatment is given to the animal. Reference: S. Marsden (2008) Enzymes. [Online]. Available at: https://vcahospitals.com/know-your-pet/enzymes [Accessed 18 February 2017].

Julius Caesar Essay -- essays research papers

Julius Caesar In William Shakespeare’s play Julius Caesar, the literary element of the tragic hero is evident. In general, a tragic hero must meet several important qualifications. He must come from a good background and have high social status, he must have a tragic flaw that leads to his downfall, and this flaw must be punished either by death or banishment. In this portrayal of the history of the Roman Empire, Shakespeare explores the lives of Julius Caesar and his acquaintances. Though all of the characters are very important to the plot of the play, none of them obtain the characteristics of a tragic hero as Caesar does.   Ã‚  Ã‚  Ã‚  Ã‚  A major characteristic of a tragic hero is that he must come from a good background and obtain high social status. Julius Caesar fits both of these qualities. Not only is he the supreme ruler of Rome, but he is also a very wealthy and well-respected man as well. The people of Rome respect Caesar for several reasons. They admire him because he cares for Rome, he governs Rome, and he has made it a great empire. Caesar is sometimes referred to as a dictator for life by the Roman people. His army is also an awesome military force and is very capable of defending Rome as it displayed Pompey early in the play. The people’s love and respect for Caesar is evident when Caesar asks Mark Antony to touch Calphurnia to rid her of her barren curse. Antony responds to Caesar’s request by saying, â€Å"I shall remember. / When Caesar says ‘do ...

The Effects of Industrialization on Society Essay -- Industrial Histor

The Effects of Industrialization on Society The Industrial Revolution changed society from an agriculture based community into a thriving urban city through many interrelated changes. One of the most important changes was the quantity and rate of products produced to meet the rising demand. Large industrial factories increased efficiency and productivity, which caused a shift in economy. Karl Marx’s believed that the new changes overturned established economies as well as society. He voiced his view through the Communist Manifesto to show people the negative effect industrialization was having on society. Prior to the Industrial Revolution, society and economics were largely determined by land and agriculture. Growth was slow and people relied on traditional means to survive. The majority of societies were farmers who raised crops and animals for a living. However, in the eighteenth century, the population exploded and grew at a significant rate. The four primary factors behind this growth are: a decline in death rate, an increase in the birth rate, the virtual elimination of plagues, and an increase in the availability of food [[i]]. This burst of population created an excessive amount of workers, who were not needed in the agriculture society. The need for workers in agriculture decreased due to the advances in technology and tools. A large number of people as well as perspective farmers had to find jobs elsewhere. This is one of the important factors in the shift of the population from rural areas to the more urban cities. The introduction of machinery initiated the Industrial Revolution making factories an important way of life. The machinery in factories used the pow... ...is, and Francisco Louà §Ã„ , As Time Goes By (New York: Oxford University Press, 2001), 164-168. [v]. Freeman and Louà §Ã„ , 194. [vi]. Montagna, [vii]. The Acts 29 Times. [viii]. Fielden, John, The Curse of the Factory System (New York: Frank Cass and Company Limited, 1969), xiii. [ix]. Wing, Charles, Evils of the Factory System (New York: Frank Cass and Company Limited, 1967), clxxxv. [x]. Fielden, 34-35. [xi]. Chris Rohmann, A World of Ideas (New York: Random House Publishing, 1999), 249. [xii]. Rohmann, 249. [xiii].Marx, Karl. â€Å"Communist Manifesto.† History and Religious Studies. 1st ed. Page 19. [xiv]. Marx, 16.

Is most efficient at heating water Essay

This was done by counting the number of different bonds broken i. e. C-H and using a data table to find out the amount of energy required. Secondly, I worked out the energy released by bonds being made again by counting the bonds and using a data table. I subtracted the second number from the first to work out the energy released by the alcohol. Methanol Balanced Equation: CH3OH+1. 5O2–>CO2+2H2O Bonds Broken Energy Required for Bond Breaking (kJ/mol) Bonds Made Energy Released from Bonds Made (kJ/mol). Total Ene  Bonds Broken Energy Required for Bond Breaking (kJ/mol) Bonds Made Energy Released from Bonds Made (kJ/mol) Total Energy Used + 12383 kJ/mol Total Energy Released – 15398 kJ/mol Total Molar Energy of Combustion. Heptanol Balanced Equation:   Bonds Broken Energy Required for Bond Breaking (kJ/mol) Bonds Made Energy Released from Bonds Made (kJ/mol)Total Energy Used + 14299 kJ/mol Total Energy Released.-Bonds Broken Energy Required for Bond Breaking (kJ/mol) Bonds Made Energy Released from Bonds Made (kJ/mol) 1/mol Total Molar Energy of Combustion, ? H (kJ/mol) = +16215-20222= -4007 This data justifies my hypothesis. More energy is released as you go up the series of alcohols therefore the water will heat up by a given temperature with less alcohol being burnt. GCSE CHEMISTRY COURSEWORK: Obtaining While obtaining evidence I took into account many safety points into consideration:   Safety goggles were worn at all times I stood up so I could quickly move out of the way if there were any spillages etc. I tucked my tie in my shirt to avoid it catching fire I also made sure I took accurate readings by: Stirring the water to maintain an even temperature   Closing windows that might cause a draught   Keeping the tin at the same height above the flame. Repeating anomalous results GCSE CHEMISTRY COURSEWORK: Analysing To produce a graph of ‘molecular mass’ versus ‘enthalpy of combustion’ both these values need to be calculated. Here is an example: First, the energy released has to be calculated. This can be done using the following formula: q=energy released m=mass of water (g) c=specific heat capacity of the liquid heated (4. 18J/g/i c for water) ?t=temperature change of water For my first piece of data this is how q would be calculated. Temperature Change: 10. 5i c Mass of Water: 400g (remember that water has a mass of 1g per cm3) Using the formula: q=400Ãâ€"4. 18Ãâ€"10. 5. Second, the molar heat of combustion must be calculated. This can be done using the following formula: -q=total energy transferred to the water (negative because the reaction is exothermic) n=number of moles (weight difference/formula mass) x1000=convert J’s to kJ’s Continuing with the same example: Energy Released: 17556J (this was worked out with the first equation) Weight Change: 1. 20g Formula Mass: 32g Using the formula: ? HMy original hypothesis was that as you go up the series of alcohols, less of the alcohol will have to be burnt for the given temperature rise. My results proved this hypothesis. The graph shows strong positive correlation proving that less alcohol is needed for the temperature rise as you go up the group. There are no anomalies, and there is hardly any scatter. When I compare my experimental data with my theoretical values I can see that although my experimental values follow the same trend, they show much less energy being given off per mole than the theoretical ones. This is because not all of the energy produced went into the water (explained in more detail in the evaluation). GCSE CHEMISTRY COURSEWORK: Evaluation. My experimental data agreed with the theoretically predicted values. When both sets of results were plotted onto a scatter graph, I could see that they both followed the same trend. However, the line representing the theoretically predicted values was lower down on the graph showing that the experimental values were lower than the predicted ones. This is because of the experimental errors detailed below. Reliability: I believe my data to be reliable. There is hardly any scatter as the results were close to the line, and there were no anomalies. The data was reliable enough to firmly support my conclusion. The fact that there was not much scatter shows this. However, the data was reliable but inaccurate because of the problems outlined below. If the data obtained was completely accurate then it would be on the theoretical data line. Experimental errors: It was impossible to get all the energy of the burning alcohol, using our equipment, into the can. Some inevitably escaped around the can and into the room. This explains why our results showed slightly more alcohol needing to be burned than the theoretical amount. Sources of experimental error:   Not all heat getting into the water (most escaped around the can or heated up the can)   Draughts blowing in from outside Modifications: If I was to do this experiment again I might either use a different calorimeter than a tin can i. e. one that conducted heat into the water more efficiently or simply put a lid on the can and insulate it. I would also do the experiment in an environment out of the open air to stop air currents changing my results and to concentrate the heat onto the water, rather than the air around. Further Work: I might do the same experiment but using alkanes instead of alcohols. I would investigate as to whether they produce the same trend as with alcohols and see whether they are more or less efficient.   GCSE Chemistry Coursework 1 Show preview only The above preview is unformatted text This student written piece of work is one of many that can be found in our GCSE Patterns of Behaviour section.

As Separate Peace Essay

It has connections between Genesis and the fall of man throughout the book underlining the main story. Genesis and the fall of man are used in the novel solely to understand human nature and the good and evil living inside everyone. Throughout the book the protagonist Gene, puts himself in a competition with his best friend and biggest enemy Finny. Finny is the perfect athlete and caries along innocence and pure thoughts of life itself and others around him. Gene and Finny both show representations of Cain and Abel as well as the creation of man with Adam and Eve. Much like Cain’s jealousy towards his brother Abel, Gene is very jealous and envious of Finny. Abel was the pure and honest brother who carried out all of Gods orders and pleased him very much, while Cain was the complete opposite. He was seen as rather corrupted and sinful. Gene, in this way, is portraying Cain because in the novel Gene realizes the strong hold that sin has on him and the strong hold on it has on his soul, and he says â€Å" It was just some ignorance inside me, some crazy thing inside me, something blind, that’s all it was† (183). Unfortunately, Gene becomes overpowered by his jealousy towards Finny just as Cain did towards Abel. Gene’s jealousy takes control of his mind and body when he finally realizes he will never be as perfect as Finny. He will never be as good athletically or he will never be as good morally and mentally either. Gene says â€Å"there never was and never could have been any rivalry between us. I was not of the same quality as he† (59). Which shows he knows that he will never win with Finny there. The pain of Gene knowing this makes him make a very unreasonable and ridiculous action that he regrets the rest of his life. Holding firmly to the trunk, I took a step forward and I jounced the limb. Finny, his balance gone, swung his head around to look at me for an instant with extreme interest, and then he tumbled sideways, broke through the little branches below and hit the bank with a sickening thud† (52). The story in Genesis of Cain and Abel is exceedingly similar to that. â€Å"Now Cain said to his brother Abel, ‘Let’s go out to the field. ’ And while they were in the field, Cain attacked his brother Abel and killed him† (Genesis 4:8). These two incidents directly parallel each other and unveil much about human nature. When Gene finally admits to the realization that he will never beat Finny or get close to his level he subconsciously lets his jealousy kill the better man inside of him so what is left is an empty soul. The fall of Adam and Eve is also coinciding with Gene’s tremendous fall in the novel. In Genesis, the story of Adam and Eve is set in the Garden of Eden. In the garden there was no sin, suffering or pain. Everyone was happy and had everything they wanted. The one thing God told Adam and Eve was to stay away from the tree of knowledge of good and evil and to not eat the fruit from that tree, yet that was too much to ask. â€Å"When the woman saw the fruit of the tree was good for food and pleasing to the eye, and also desirable for gaining wisdom, she took some and ate it. She also gave some to her husband who was with her, and he also ate it† (Genesis 3:6). This sin had grave consequences such as â€Å"the eyes of both of them were opened and they realized they were naked; so they sewed fig-leaves together and made coverings for themselves† (Genesis 3:7). Gene’s sin had similar results from when he shook the tree and Finny fell, his life changed largely. The impact of his actions struck him extremely hard and at once he became ashamed and embarrassed of what he did, just as Adam and Eve were of their nakedness so they hid. Gene’s shame relates to the story of Adam and Eve but not just that, it relates to a large population of people today and this is the point Knowles was making and why he related his book to Genesis. As humans, people are automatically going to hide their transgressions behind something else and that’s just human nature. To be able to fully understand this novel you need to know about creation and the fall of man. In every human there is good and there is evil, it will come out at different times and one might overpower the other, but there is till both. Cain and Abel’s story, along with Adam and Eve’s story equally show how the evil overpowered Gene.