Wednesday, July 31, 2019

Dramatic Climax Essay

How Does Miller Create Interest in Act Three, the Dramatic Climax Of â€Å"The Crucible†?  In Act Three of Arthur Miller’s â€Å"The Crucible†, tension rises in the courtroom of Salem as John Proctor, Giles and Francis strive to save the lives and respect of their wives. As the trials progress, the audience concentrate more on certain individuals and how they struggle to maintain power and authority in the courtroom. Miller called his play â€Å"The Crucible† because a crucible is a container in which metals are heated to extract the pure element from dross or impurities. In Act 3, John Proctor is tested in a life threatening ordeal and his choice of death rather than betrayal of his conscience shows us that he too has come through the fire to be purified. This creates interest because the comparison of Proctor’s situation and going through fire to be purified is powerful. ‘Going through fire’ emphasises on the pain he must suffer. The audience sympathise for his pain and suffering and so they are interested in Act 3 to see the consequences of the dramatic climax. The main focus of Act 3 has to do with determining who will define innocence and guilt. Proctor makes one audacious gamble for this authority by finally overcoming his desire to protect his reputation, exposing an inner secret sin. He hopes to replace his wife’s blame with his own guilt and bring Abigail down as well in the process. He reveals his private life to examination, hoping to gain some authority, but he does not realise that the competition is high, people may show more energy in the delivery and presentation of their speech. Too many reputations are at stake and Proctor’s surprise comes too late to stop the avalanche. This also creates interest as Proctor is the protagonist who the audience are encouraged to focus on and sympathise with. Proctor making this audacious gamble interests the audience, builds up to whatever the outcome may be, the dramatic climax. Desperation and persuasion are emotions involved within this act. There is a great deal of climax and suspense displayed using many different dramatic devices. Dramatic devices are made to engender interest in the audience. The dramatic devices present in this act seem to follow an order of operation, of starting with the least dramatic to the most dramatic. As more devices build up, more interest is likely to develop. The development of interest is then switched to the climax (turning point). The act starts with a common device such as character interaction. Character interaction in Act 3 set in a courtroom is a lot different to usual character interaction:  GILES (beginning to plead): They be tellin’ lies about my wife, sir, I-  DANFORTH Do you take it upon yourself to determine what this court shall believe and what it shall set aside?  GILES Your Excellency, we mean no disrespect for-  DANFORTH Disrespect indeed! It is disruption, Mister. This is the highest court of the supreme government of this province, do you know it? The fact that Giles is cut off by Danforth before even managing to finish his sentence, shows that more power is on Danforth’s side whilst Giles is beginning to plead for freedom. It also shows that the pace of speech may be very quick as everyone is determined to get their message across. The effect that this gives is that questions and quick speeches build up suspense for answers. Also, Danforth interrogating Giles shows his authority and possession of power over him. The interrogation can also be seen as a dramatic device, it creates interest with the audience waiting for answers to the questions. Another dramatic device is the use of vocal variety. When characters interact in a different way of speech, it shows there is a change of behaviour. It grabs the attention and suspense of the audience and makes them wonder to where this may lead to. An example:  GILE’S VOICE (roaring) I have evidence for the court!  As Giles is roaring, there is a great sense of energy in Giles’ voice, as if he were roaring like a lion. This contributes to the idea of getting the message across to the rest of the court members and the energy makes the audience feel more alert, just like a lion would. This makes the situation more interesting as roaring isn’t usually how Giles would react, so the audience are interested to know where the roaring would lead to. In Act 3, based on the courtroom scene, body language, gestures and even facial expressions play a key role of grabbing the audience’s interest. These factors reveal the character’s personalities depending on what their actions are like. If a character’s actions are more open and broad, it may suggest that they are more confident and powerful. However, if a character’s actions are reserved and tightened, it may suggest that they are under-confident and weaker:  PARRIS (sweating): These people should be summoned. (DANFORTH looks up at him questioningly.) For questioning. As Parris is sweating, this shows that he is anxious about his decision of the people being summoned, but then gains back his confidence when Danforth looks up at him, so he answers back at Danforth’s questioningly look. This interests the audience as there is a change of behaviour within a character.  Characters are at their upmost desperation for innocence and reputation, the matter of what is at stake and how do characters react really indulges itself into the drama. Death is at stake and characters are becoming more and more desperate progressing through the scene. Since the storyline is based upon witch hunting in Salem, the girls who are shown to be witches act out in an eccentric manner. The hysteria of the girls is shown dramatic as it displays what separates the sane from the insane and really engages the interest of the audience. Being set in a courtroom would mean that character interaction is shown from all angles. There is power to be shifted from someone who is higher in authority, and has more arguments to clear themselves from any kind misjudgement to someone who is unable yet desperate to defend themselves.

Tuesday, July 30, 2019

Deception Point Page 95

The communications device on the man's belt crackled. The voice coming out was robotic. â€Å"Delta-Three? Come in. I heard a shot.† The man made no move to answer. The device crackled again. â€Å"Delta-Three? Confirm. Do you need backup?† Almost immediately, a new voice crackled over the line. It was also robotic but distinguishable by the sound of a helicopter noise in the background. â€Å"This is Delta-One,† the pilot said. â€Å"I'm in pursuit of the departing vessel. Delta-Three, confirm. Are you down? Do you need backup?† Tolland pressed the bang-stick into the man's throat. â€Å"Tell the helicopter to back off that speedboat. If they kill my friend, you die.† The soldier winced in pain as he lifted his communication device to his lips. He looked directly at Tolland as he pressed the button and spoke. â€Å"Delta-Three, here. I'm fine. Destroy the departing vessel.† 115 Gabrielle Ashe returned to Sexton's private bathroom, preparing to climb back out of his office. Sexton'sphone call had left her feeling anxious. He had definitely hesitated when she told him she was in her office-as if he knew somehow she was lying. Either way, she'd failed to get into Sexton's computer and now was unsure of her next move. Sexton is waiting. As she climbed up onto the sink, getting ready to pull herself up, she heard something clatter to the tile floor. She looked down, irritated to see that she'd knocked off a pair of Sexton's cuff links that had apparently been sitting on the edge of the sink. Leave things exactly as you found them. Climbing back down Gabrielle picked up the cuff links and put them back on the sink. As she began to climb back up, she paused, glancing again at the cuff links. On any other night, Gabrielle would have ignored them, but tonight their monogram caught her attention. Like most of Sexton's monogrammed items, they had two intertwining letters. SS. Gabrielle flashed on Sexton's initial computer password-SSS. She pictured his calendar†¦ POTUS†¦ and the White House screensaver with its optimistic ticker tape crawling around the screen ad infinitum. President of the United States Sedgewick Sexton†¦ President of the United States Sedgewick Sexton†¦ President of the†¦ Gabrielle stood a moment and wondered. Could he be that confident? Knowing it would take only an instant to find out, she hurried back into Sexton's office, went to his computer, and typed in a seven-letter password. POTUSSS The screensaver evaporated instantly. She stared, incredulous. Never underestimate the ego of a politician. 116 Corky Marlinson was no longer at the helm of the Crestliner Phantom as it raced into the night. He knew the boat would travel in a straight line with or without him at the wheel. The path of least resistance†¦ Corky was in the back of the bouncing boat, trying to assess the damage to his leg. A bullet had entered the front part of his calf, just missing his shinbone. There was no exit wound on the back of his calf, so he knew the bullet must still be lodged in his leg. Foraging around for something to stem the bleeding, he found nothing-some fins, a snorkel, and a couple of life jackets. No first-aid kit. Frantically, Corky opened a small utility chest and found some tools, rags, duct tape, oil, and other maintenance items. He looked at his bloody leg and wondered how far he had to go to be out of shark territory. A hell of a lot farther than this. Delta-One kept the Kiowa chopper low over the ocean as he scanned the darkness for the departing Crestliner. Assuming the fleeing boat would head for shore and attempt to put as much distance as possible between itself and the Goya, Delta-One had followed the Crestliner's original trajectory away from the Goya. I should have overtaken him by now. Normally, tracking the fleeing boat would be a simple matter of using radar, but with the Kiowa's jamming systems transmitting an umbrella of thermal noise for several miles, his radar was worthless. Turning off the jamming system was not an option until he got word that everyone onboard the Goya was dead. No emergency phone calls would be leaving the Goya this evening. This meteorite secret dies. Right here. Right now. Fortunately, Delta-One had other means of tracking. Even against this bizarre backdrop of heated ocean, pinpointing a powerboat's thermal imprint was simple. He turned on his thermal scanner. The ocean around him registered a warm ninety-five degrees. Fortunately, the emissions of a racing 250 hp outboard engine were hundreds of degrees hotter. Corky Marlinson's leg and foot felt numb. Not knowing what else to do, he had wiped down his injured calf with the rag and wrapped the wound in layer after layer of duct tape. By the time the tape was gone, his entire calf, from ankle to knee, was enveloped in a tight silver sheath. The bleeding had stopped, although his clothing and hands were still covered with blood. Sitting on the floor of the runaway Crestliner, Corky felt confused about why the chopper hadn't found him yet. He looked out now, scanning the horizon behind him, expecting to see the distant Goya and incoming helicopter. Oddly, he saw neither. The lights of the Goya had disappeared. Certainly he hadn't come that far, had he? Corky suddenly felt hopeful he might escape. Maybe they had lost him in the dark. Maybe he could get to shore! It was then he noticed that the wake behind his boat was not straight. It seemed to curve gradually away from the back of his boat, as if he were traveling in an arc rather than a straight line. Confused by this, he turned his head to follow the wake's arc, extrapolating a giant curve across the ocean. An instant later, he saw it. The Goya was directly off his port side, less than a half mile away. In horror, Corky realized his mistake too late. With no one at the wheel, the Crestliner's bow had continuously realigned itself with the direction of the powerful current-the megaplume's circular water flow. I'm driving in a big friggin' circle! He had doubled back on himself. Knowing he was still inside the shark-filled megaplume, Corky recalled Tolland's grim words. Enhanced telencephalon olfactory lobes†¦ hammerheads can smell a droplet of blood a mile away. Corky looked at his bloody duct-taped leg and hands. The chopper would be on him soon. Ripping off his bloody clothing, Corky scrambled naked toward the stern. Knowing no sharks could possibly keep pace with the boat, he rinsed himself as best as he could in the powerful blast of the wake. A single droplet of blood†¦ As Corky stood up, fully exposed to the night, he knew there was only one thing left to do. He had learned once that animals marked their territory with urine because uric acid was the most potent-smelling fluid the human body made. More potent than blood, he hoped. Wishing he'd had a few more beers tonight, Corky heaved his injured leg up onto the gunwale and tried to urinate on the duct tape. Come on! He waited. Nothing like the pressure of having to piss all over yourself with a helicopter chasing you. Finally it came. Corky urinated all over the duct tape, soaking it fully. He used what little was left in his bladder to soak a rag, which he then swathed across his entire body. Very pleasant. In the dark sky overhead, a red laser beam appeared, slanting toward him like the shimmering blade of an enormous guillotine. The chopper appeared from an oblique angle, the pilot apparently confused that Corky had looped back toward the Goya. Quickly donning a high-float life vest, Corky moved to the rear of the speeding craft. On the boat's bloodstained floor, only five feet from where Corky was standing, a glowing red dot appeared. It was time. Onboard the Goya, Michael Tolland did not see his Crestliner Phantom 2100 erupt in flames and tumble through the air in a cartwheel of fire and smoke.

Monday, July 29, 2019

Crash by Paul Haggis Movie Review Example | Topics and Well Written Essays - 500 words

Crash by Paul Haggis - Movie Review Example From this study it is clear that the movie has proved to be quite interesting; it is quickly enough understood that who the characters are and how they live, but we wonder about their behaviour to each accident they face throughout the whole movie. Mostly for variations people watch movies which enact rituals. "Crash" on the other is a movie that shows free will, and that there are vast possibilities for anything to occur. The movie plays its vital part in wrapping the viewers and getting them involved because as we go on, we develop a sense of care for the characters.This paper highlights that Officer Hansen in the movie, in my opinion proves to be a very fascinating character. He is a white male who seemingly lived in a typical neighbourhood and fairly has the same normal views of an individual who comes from similar social background. Officer Hansen is a considerate young man who doesn’t care about people’s social indifference. He is completely dissimilar to his part ner Officer Ryan who doesn’t treat people of different race equally.  In the late beginning of the movie he encounters a conflict between his partner and a black couple where his partner took advantage of his position and tried to vulgarly abuse the black man’s wife just because of the racial difference which was highly disliked by Officer Hansen.  Officer Hansen is shown to be a common white man with a typical background.

Sunday, July 28, 2019

Heritage Tourism, two subtopic questions Coursework

Heritage Tourism, two subtopic questions - Coursework Example The countries committed to developing a way that could see them honor and acknowledge their past as they moved to establish a future that was safe, peaceful and accommodating everyone into their countries. Therefore, elimination the past for a country is very suicidal because the future generations may lack a benchmark on which to make informed decisions regarding the future. According to Digance (2003), the past offers a platform on which to avoid those ideas and systems that did not work and failed in one way or another. in this regard, the study of it helps in shaping the future by offering better ways of creating social and economic systems of life for a country. From the time of its civil war, Serbia has managed to establish a country that respects peace and harmonious co-existence among its people. Every country has a way of ensuring that its history is well protected so that its future generations can learn from it and tread into their esteemed future. Almost every country has well established and stocked museums that contained various cultural aspects. These cultural centres provide good memories to the people who often are motivated with the spirit of adventure, wanting to know how their countries came into existence. According to Goulding & Dominic (2008), Croatia is one of the countries that contain a rich past, detailing how the country made its way from Yugoslavian colonial rule, creating an economy that is fostered on developing a peaceful country that values and appreciates peace. One of the reasons why mapping a country’s history is important is informed by the need to preserve its cultural heritage. In this regard, this heritage serves as a good reminder of the country’s past, explaining the way of life in the olden days. By having this understanding, people can easily understand why and how life is changing. Secondly, mapping a country’s history

Saturday, July 27, 2019

The Stranger by Albert Camus Essay Example | Topics and Well Written Essays - 500 words

The Stranger by Albert Camus - Essay Example Meursault's character is a statement about the author's view of the irrationality of the universe and how humans are making it complicated through insisting that life is purposeful. The exposition part of the plot revealed so much about Meursault's concept of the word "emotions." The story began with news that his mother passed away through a telegram. Contrary to the expected reaction of a son who just lost a parent, he did not turn out to be sentimental, or at least sentimental in a masculine way. Instead, he cared more about what day and time his mother died. The diction and tone used by Camus is entirely helpful upon establishing Meursault's persona. To directly say that "Mother died today, or maybe yesterday; I can't be sure" (Camus 4) is a perfect portrayal of being indifference towards the death of a loved one. It is noticeable however, that Meursault is emotionally detached from his own mother, which made sense if he would be the same with the rest of the people around him. T he physical world is more important to him than what really matters according to society's opinion, such as love and the concept of a meaningful life.

Friday, July 26, 2019

Explain the role of management Essay Example | Topics and Well Written Essays - 1500 words

Explain the role of management - Essay Example Managers look specifically at the individual's performance at any one time while leaders look at a team and their future prospects (Maundy, 2001) Managers within an organization do the planning for most of the sectors such as policy formulation, financial, marketing of products, and control of major assets. They also exercise their power on any issue arising such as the decision making processes. The leaders in an organization are responsible for building the large workforce and human resources within the company. These leaders also inspire, innovate, mentor, set examples, and revolutionize all the employees within the organization in order to achieve the best from them and also achieve the organization goals and objectives. (Maundy, 2001) The first function is planning-it can be defined as the process of developing the objectives and mission of the organization. A manager must also organize-this involves coordinating and dividing tasks among members of the organization. Here, the manager assigns responsibilities to team members. Staffing is another managerial function and can be defined as the filling and maintaining of all the positions available in a company. Some of the activities involved in this function include: recruiting, training, hiring, evaluation and compensation. Managers are also expected to control members of staff. This involves measuring performances, setting performance standards and taking corrective or preventive measures to ensure that the standards set are adhered to. Communication is another vital element in management and involves the transfer of information from management down to other members of the organizational structure. Lastly, managers are expected to motivate their team members, this involves influencing or channelling people's behaviour to accomplish the missions and objectives of the organization. (Mullin, 2007) Importance of team approach in achieving organisation's goals The model below is a pictorial representation of John Adair's action centred leadership. He believed that a manger has three roles; 1) he must plan, assign, review tasks of the organisation 2) he must communicate, create a culture of ethics, hive feedback to the team 3) he must understand individuals, develop, train and recognise each individual's efforts An organisation can be viewed as a combination of two sets of workers i.e. management and subordinates. Both categories have their own goals that have to be directed towards overall goals of the organisation. It is important for management to try and align employee goals with organisational goals. This means that everyone in the organisation will be working towards the same direction. This can be achieved by creating a sense of loyalty among employees and through communication. This implies that workers will work hand in hand with management thus achieving overall goals. In contrast, if every member of the organisation focuses on their own needs and did not consider their work group as a team, resources will be drained and losses will occur. Case study Taking an example of a hospital like

Is Aborftion Moral Essay Example | Topics and Well Written Essays - 750 words

Is Aborftion Moral - Essay Example Rape is an act of sexual intercourse with a person who is unwilling. In most of the times, the rapists do not use protection. As such, the rape victims are impregnated by this heinous act. At times, the rape victims do not get enough mitigation processes to avoid pregnancy (Ezell, Norwood, Stewart, Greenwood, Waight, Bishop, and Hutchins, 2009). For example, some rape victims are afraid of seeking help from the healthcare service department. In these days, medical advancement makes it possible to use morning-after-pill to avert pregnancy. However, this is only possible with a timeline of up to 72 hours. Therefore, the victims have to bear the consequences of a crime. To many people, this is humiliating since the rape victim will have memories of an unwanted occurrence. In this aspect, it is acceptable to procure an abortion. Apparently, it is legally acceptable to abort after getting pregnant after a rape incident. Similarly, it is morally acceptable to procure an abortion in inciden ces like child abuse and incest. Many people in the world have a single source of income. For example, a family that is dependent on a single-family breadwinner will be solely dependent on the sole income. However, a situation could lead to a change in the source of income. For example, after death, divorce, or separation, families will find it hard to cope with the new life. In some instances, women find they are pregnant after divorce, separation, or death of their husbands (Webster, 2009). In such a situation, they do not have a single source of income. Apparently, they do have various responsibilities to accomplish. This increases the financial impedance on the single mother. In such a situation, one may procure an abortion. This will limit any other expenses that are precedent. Consequently, it is argued that many people are focusing on the morality of abortion. However, it is noted that there are

Thursday, July 25, 2019

Designating English as the official language of the United States Research Paper

Designating English as the official language of the United States - Research Paper Example More than with the English people, the English language has come to be regarded as synonymous with the American people. There is, in fact, some truth to this. Given how well-regarded the American people are for their general fluency in the English language, it is not altogether surprising that some have begun to consider it as being the USA’s national language. In fact, Feder (2007) has noted how at least 28 American states have come to consider the English language as their official language, while a survey by the US Census Bureau (2007) shows how over 225.5 million American citizens actually regard it as their only language. Another, earlier report from this same source (2000) pegged this number as 231.7 million. Specifically, 86% had been shown to claim the English language as their mother tongue, while 96% attested that they spoke English very well. The remaining 14% whose first language is not the English language serve as proof that while American English is the predomin ant language in the United States, it is far from being the only spoken language there. At the same time, though, the overwhelming majority of fluent English speakers residing in America all but dictated that that particular language would be considered the de facto national language of the United States of America. ... Thanks in part to British trade and colonization, the English language spread not only to America, but also to other parts of the world. The huge British population at the time also helped; by 1921, the then-British Empire was slated to have at least 470 million people – easily a quarter of the entire global population. Since then, both variants of the English language have diverged, evolving and developing on their own. Today, American and British English are said to differ on points including, but not limited to, spelling, grammar, punctuation and expressions. Crystal (1997) has noted that over 66% of all English speakers living worldwide reside in the United States. This being the case, it should no longer be surprising that, as mentioned above, the American variant of the English language has come to be considered as the USA’s de facto national language. That is, while the federal government itself has not issued any directives as to the USA’s national langua ge, 28 out of all 50 states have already adopted American English as their respective official languages. American English is known for possessing greater homogeneity than the variant spoken in England (Lass, 1990), and is mostly rhotic in nature. Certain letters are pronounced and enunciated differently between the two languages, and there are even sounds that are exclusive to one of them. All in all, certain words have begun to be spoken and pronounced differently depending on whether American English or the Queen’s English is being used. Spelling has also been known to deviate between the two variants. Among the most triumphant examples of these are certain words which may or may not be spelled certain letters such as mold/mould, honor/honour, realize/realise, and others. Additionally,

Wednesday, July 24, 2019

Direct Manipulation Research Paper Example | Topics and Well Written Essays - 750 words

Direct Manipulation - Research Paper Example This gives an all the more intriguing feel to the human-computer interaction. The usage of this interface is more common in the video game development field. Most Direct Manipulation interfaces are of graphical concepts and could be now and again is alluded to as Graphical User Interface (GUI). This is on account of its use of on-screen graphical representation of actions (Heeter, 1991). Direct Manipulation interface is commenced upon a significant arrangement of standards. Quintessentially, these are the ideological demonstrations of existence of a Direct Manipulation interface. These rules or principles are as follows. The concept of realism: Firstly, the instruments in the computer are visually inseparable and indistinguishable from the real life objects they are being used to depict. For example, this is applied by having a knife in video games represente a real knife in all aspects. a helicopter in video is similar to a real world helicopter in all aspects. Moreover, actions performed on the objects in game are similar to those that would be or could be performed on similar objects in actual life. To further explain, illustrations form video games shall be drawn to exemplify this; a mobile phone in the game serves the same purpose that which it serves in real world which is to enable communication, an armored carrying vehicle serves the same purpose as its purpose in real world which is it sole purpose being of military use. Furthermore, the association between the in-game objects and actions performed on them and the objects in real world and actions performed on them is maintained even on con ceptual level. This, for example is illustrated by the fact that in video games, a motorbike will be driven as it is driven normally in the real world. There are examples of programmers going to painstaking measures in order to depict the real world phenomena such as aurora, water reflection and fire

Tuesday, July 23, 2019

Micro and macro economics Essay Example | Topics and Well Written Essays - 2500 words

Micro and macro economics - Essay Example A rosy business environment means that merger forecasts indicated that the combined company will be able to create a profitable synergy. The synergy included combining the marketing and management strategies of both companies. Since the two companies were economically profitable prior to the January 2001 merger, all business predictors expected that the combined company will be able to generate additional revenues that will surpass the combined revenues and profits of each of the two merger companies combined (Lipsey, 2007). In fact, the merger was a huge projected gamble at $348 million investment money on the line. Both America Online’s founder, Stephen Case, and Time Warner’s chief executive, Gerald Levin, had very high hopes that the merger will bring more revenues and profits to the new giant company, the merged entity cropping up from the two companies. The merger was expected to generate an equal share in the shareholders’ dividends. The board of directors of each of the two combining companies was expected to vote equally on all business decisions of the combined company (Hoskisson, 2005). Question 2 Both companies had similar motives for ensuring the success of the merger. Time Warner entered the merger in order to enhance its benefits from both the supply equation and demand equation (Microeconomics). Similarly, America Online entered the merger in order to enhance its present benefits from both the supply equation and demand equation (Hirschey, 2005). Additionally, Time Warner joined the merger to enhance the company’s macroeconomic environment. The company’s macroeconomic goals included improving its total economic activity, especially in the area of growth. The company’s other macroeconomic goals included the successful resolution of the obstacles of inflation. Further, the company’s macroeconomic goals included contributing to the reduction of the nation’s unemployment rate (Hall, 1997). Simi larly, America Online vigorously entered the merger in order to enhance the company’s macroeconomic environment on January 10, 2000. The company’s macroeconomic goals included improving its total economic activity, especially in the area of growth (Tucker, 1997). The company’s other macroeconomic goals included the successful resolution of the obstacles of inflation (Khoury, 2003). Further, the macroeconomic goals of Time Warner and America Online are geared towards contributing to the improvement of the nation’s economy. The nation’s economic indicators include gross domestic production. The nation’s economic indicators include international trade. The merged company’s global market included clients from outside the United States. The merger between Time Warner and America Online occurred on January 2000. The merger was considered as one of the largest merger s in United States history. The merger involved an estimated $348 million. America Online’s founder, Stephen Case, was proud with the merger. Likewise, Time Warner’s chief executive, Gerald Levin, felt that America Online’s formidable internet presence would catapult America online to greater financial profit heights (Hoskisson, 2005). After the merger was consummated, the new merger focused on reducing the number of redundant employees. With the retrenchment, the number of unemployed United States citizens ballooned to unfavorable macroeconomic levels. Today the combined value of the two companies, Time Warner and

Monday, July 22, 2019

History of Fire Sprinklers Essay Example for Free

History of Fire Sprinklers Essay Rome, 64 A. D. Emperor Nero watched in horror as the great city of Rome burned for six days and seven nights. Afterwards 70% of the city was left in smoldering ruins and devastation. (The Burning of Rome, 64 AD 1) Why the exact cause of the fire is unknown, we wonder if an effective sprinkler system could have prevented this incident and others like it. A city that was well known for their magnificent construction, architecture, and irrigation systems was almost completely destroyed by one incident. Many codes do not require a specific type of Automatic Sprinkler System. While the most common type found is the Wet Pipe System; Dry Pipe, Preaction, and Deluge Systems can be found in many different occupancy types. The two main purposes of automatic sprinkler systems are to extinguish fires and control the fire until appropriate personnel arrive to extinguish the fire. Automatic sprinkler systems are expected in all occupancy types, except residential, unless the hazard is not compatible with water. For these hazards there are several other types of suppression systems that can be installed to manage the incident. By installing an automatic sprinkler system, you increase life safety and property protection. What is the standard of sprinkler systems? The goal is to increase life safety and decrease property damage. The National Fire Protection Association (NFPA) has been the leader in mandating standards and requirements when it comes to sprinkler systems. They have developed many standards that address the installation, inspection, and maintenance of sprinklers. Wet pipe systems are closed water systems attached to a piping system containing pressurized water at all times. This type of automatic sprinkler system is the most common type, and can be found in all most all occupancy types. Unless the potential of freezing pipes or other special conditions apply, this type of system will be encountered most frequently. The operation of this sprinkler system is very simple. The wet-pipe system consists of sprinkler heads attached to sprinkler supply lines that interlace the occupancy. When a fire first starts there is minimum heat generated. As the fire grows and the thermal layer is disturbed, heat rises to the targeted sprinkler heads. Depending on the rated temperature of the sprinkler head, a fusible disc or link melts from the heat and initiates the flow of water. While most fires are controlled by one or two sprinkler heads, in the case of fast moving fires more may be needed to control the fire. When water is flowed from the system, typically other things may happen. In all most all wet-pipe systems, there is some type of audible alarm activated at the standpipe. This will trigger other alarms in the building, and most of the time notifies an agency that will then notify the Fire Department of a water flow alarm or others like it. Dry pipe systems use air or nitrogen to keep the supply line pressurized at all times. This type of automatic sprinkler system is commonly found in the colder areas where the possibilities of freezing pipes are encountered. Dry-pipe systems provide the same adequate protection similar to wet-pipe systems. The piping is charged with air or nitrogen, and when a sprinkler head is activated the drop in the pressure opens a valve at the standpipe that allows water to flow into the systems. (Bahme 25) Just like the wet-pipe system, normally one or two sprinkler heads are needed to control the fire. There will also be an alarm that is activated notifying the appropriate agency to contact the Fire Department. At lest once a week the system should be tested to make sure that the air pressure within the piping is maintained. The third type of automatic sprinkler system is the Pre-action System. This type of system is a closed piping system that contains air, which may or may not be under pressure. When a fire occurs the fire detecting device signals the control valve to open charging the system. This type of system is usually used where the possibility of broken pipes and sprinkler heads may result. The most common places found include electrical rooms, computer rooms, and other areas that may house expensive equipment. There can be several types of pre-action system including a recycling system. This system is capable of charging the piping, discharging water, then cutting itself off. In the event that the fire rekindles, it can discharge again. It then has the ability to recycle the water. Deluge systems are much like Pre-action systems except that the sprinkler heads are open and the system is not charged. Similar to that of the pre-action systems, a fire detection device, usually a heat sensor, activates the discharge valve on the system. The difference is that the entire sprinkler component of the system is open; therefore the area that is activated is deluged in water. These types of automatic sprinkler system can be found where a high hazard of flammable liquid may be encountered. The most common place is aircraft hangars. Caution should be taken though; in confined spaces the oxygen level can be deficient when these systems are activated due to the copious amounts of water. Combined Dry-Pipe and Pre-action systems are composed of both the systems mentioned above. These systems have the dry pipe features with the pre-action features in the event the dry pipe portion fails. These systems are used when an area is too large to be covered by a dry pipe system. On the same note though, combined systems were originally developed for protection during cold climates. Long lines would be subject to freezing. These systems are commonly found when dealing with long piers. (Bahme 30) It is important to note this type of system is considered two independent systems. Testing requires individual standards for both type; consisting of the dry pipe system and the pre-action system. Limited water supply systems are those where supply water cannot be properly supplied to the occupancy. These systems consist of many wide range types and can be used as outside sprinklers and confined space sprinklers. Some research obtained shows that one type of limited water sprinkler type could be the antifreeze sprinkler system. This type of system is very uncommon and is normally not accepted and used in recent automatic sprinkler systems. In conclusion, there are several types of water sprinklers used in today’s management to help increase life safety and decrease property damage. By including detection devices and the correct sprinkler heads, these systems can mean the difference between life and death. The occupancy should have the correct automatic sprinkler system that will properly suppress the material relevant in that occupancy regardless of the type. The preferred automatic sprinkler system should all be able to notify the occupants, summon the correct agency to suppress the fire, sound alarms, supervise fire control, and initiated a wide variety of auxiliary functions involving environmental, utility, and process controls. (IFSTA 559)

Bio-fuels Essay Example for Free

Bio-fuels Essay Advantages: The actual aim of biofuels is to be carbon neutral. Potentially they can reduce greenhouse gas emissions when you compare them to conventional transport fuels, but this ability depends on the way you produce these biofuels. In reality biofuels aren’t carbon neutral because they actually require energy to grow the crops and to convert them into fuel. However, biofuels could still be more environmentally friendly then other fossil alternatives. They can save up to 60% of the carbon emissions compared to fossil fuels, and second generation biofuels can offer savings of about 80%. Another advantage of biofuels is that they save money of drivers. Governments have introduced many incentives to drivers of the well-known green cars who are based on emissions, who come with reduced taxation. And because the petrol prices are rising, if you then would replace the petroleum with a renewable energy source it should actually offer high savings at the pump in the long term, especially when the availability of biofuels will rise. Disadvantages: However, there have been some arguments that biofuel isn’t as positive as it had been portrayed and thought of. The following points are some of the several concerns about biofuels: * Biodiversity: This has been feared a lot lately, because when adapting more land to produce the crops needed for biofuels, the consequence would be that more habitats would be lost for animals and wild plants. * Food versus fuel debate: Another concern is that if biofuels become attractive for farmers they’ll decide that they may want to grow crops for biofuel production instead of for food production. If less food is produced that will lead to the increase of prices and also cause a rise in inflation. A way to counter this problem is by second generation biofuels which use waste biomass, but then again that will also impact the habitat of many organisms. Due to the food price increase, around 100 million people are at risk and then especially in the developing countries. * Carbon emissions: Most of the investigations do indicate that by burning biofuels it does actually reduce the greenhouse gas emissions when you would compare it to petroleum and diesel. But lately studies have been published that show that the burning of e.g. corn can contribute as much to nitrous oxide emissions than cooling through fossil fuel savings. * Non-sustainable biofuel production: Many first generation biofuels aren’t sustainable. And it is necessary to create biofuel production that doesn’t affect the production of food and also what doesn’t affect any other environmental problems. And because there has been lots of criticism of the production of non-sustainable biofuels many governments have switched their support to sustainable biofuels and other alternatives. Why controversial? Biofuels have been blamed for pushing up the food prices, that they couldn’t meet the environmental standards, they themselves have caused for the demand of water and nitrate fertilizers and they have encouraged the destruction of natural habitats e.g. the rainforest. And still it’s an controversy which governments have been struggling to solve. What has also been revealed is that the companies who actually use biofuels haven’t been able to fully report the sustainability of them. But even though we associate environmental damage with the production of biofuels we should not immediately think that all biofuels are bad. The production of biofuels is still developing, and as new fuel technologies are being made the situation could radically change and we may be able to adjust the impact on the environment to a small percentage. After having seen the positive and negative sides of biofuels you could wonder is biofuels are really worth it. On one hand they could actually reduce the carbon emissions and help save you some money. But they also negatively impact the habitat of many species and aren’t necessarily efficient enough at producing the energy that they are required to make. So there are two completely different sides to biofuels which explains why the topic biofuels has been so controversial lately in the 21th century and why we are all now discussing if we should go on producing biofuels or not.

Sunday, July 21, 2019

Determination of Vitamin C in Tablets

Determination of Vitamin C in Tablets INTRODUCTION Nowadays, health has become the most important property of humans life. Commonly, diets with high contents of fruits are protective against several human diseases such as cardiovascular diseases and even cancer. Therefore, people are putting more and more attention on antioxidant substances such as vitamin C which is also known as ascorbic acid or more specifically L-ascorbic acid. Vitamin C is probably one of the most highly well known. Furthermore, people have become more aware to the importance of vitamin C. Hence, this causes the global market flooded with vitamin C fortified foods (Arya, Mahajan and Jain, 2000). The term of vitamin C is used as generic term for all compounds exhibiting qualitatively the biological activity of ascorbic acid. The molecular structure of vitamin C is C6H8O6 and the molecular weight is 176.1 (Ball, 2006). Vitamin C is highly polar and readily soluble in aqueous solution and insoluble in less nonpolar solvents (Fennema, 1996). It is an acidic compound due to the facile ionization of hydroxyl group on carbon 3 (pK1 = 4.17) while the hydroxyl group on carbon 2 is much more resistant to ionization (pK2 = 11.79). The structure of L-ascorbic acid is shown in Figure 1 (Ball, 2006). Ball (2006) also stated that ascorbic acid is easily and reversibly oxidized to dehydroascorbic acid, forming the ascorbyl radical anion which is also known as semidehydoascorbate as an intermediate as shown in Figure 2. Dehydoascorbic acid possesses full vitamin C activity because it is readily reduced to ascorbic acid in the animal body. However, dehydoascorbic acid is not an acid in the chemical sense, as it does not have the dissociable protons that ascorbic acid has at carbon 2 and carbon 3 positions. One of the most important properties of vitamin C is that it is an antioxidant. Nevertheless, it has a wide range of antioxidant properties outside the body and can quench most biologically active radicals. It scavenges superoxide, nitroxide, hydroxide, hydrogen peroxide and will reduce vitamin E (Hickey and Roberts, 2004). It is also found to be a strong antioxidant as it helps to neutralize harmful free radicals (Izuagie and Izuagie, 2007). Vitamin C is an almost odorless white or pale yellow crystalline powder with a pleasant sharp taste and melting point of about 190Â °C. It is not a carboxylic acid but a lactone and ease of oxidation to the presence of an enediol grouping (Izuagie and Izuagie, 2007). Vitamin C is highly susceptible to oxidation, especially when catalyzed by metal ions such as copper(II) ion and iron(III) ion. The functions and activities of vitamin C are based on its properties as a reversible biological reductant (Hickey and Roberts, 2004). Vitamin C participates for the growth and repair of tissues in all parts of the body (Kleszczewski and Kleszczewska, 2002). Vitamin C is a natural antioxidant that mostly found in fruits and vegetables. The main sources of vitamin C are citrus fruits, strawberries, peppers, tomatoes, cabbage, and spinach. Vitamin C plays crucial roles in electron transport, hydroxylation reactions and oxidative catabolism of aromatic compounds in animal metabolism (Gazdik et al, 2008). Vitamin C can help to prevent and treat common cold, mental illness, infertility, scurvy, cancer and acquired immune deficiency syndrome (AIDS) (Yusuf and Gurel, 2005). It is reported to lower cancer risk and also said to have important interactions with other vitamins. For example, excessive intake of vitamin A is less toxic to the body when vitamin C is readily available (Izuagie and Izuagie, 2007). Due to the great importance of vitamin C in human beings, the quantitative analysis of vitamin C has gained increased significance in several areas of analytical chemistry such as pharmaceutical and food applications (Yusuf and Gurel, 2005). Vitamin C is also used as an index of the nutrient quality for fruit and vegetable products. This is because it is much more sensitive to various modes of degradation in food processing and subsequent storage (Ozkan, Kirca and Cemero, 2004). It is well known that vitamin C is easily oxidized to dehydroascorbic acid in alkaline solutions, while it is relatively stable in acidic solution. Vitamin C of fruit juices is readily oxidized and lost during staying of the juices (Kabasakalis, Siopidou and Moshatou, 2000). In the food industry, vitamin C is used as food additive (Mai and Mohammed, 2004). It preserves and protects food from any colour changes and act as an important component of our nutrition as well. Vitamin C helps to prevent the degradation of soft drinks and juice which helps to retain their flavors. Hence, it increases the quality of food and nutritional value as well (Burdurlu, Koca and Karadeniz, 2005). Degradation of vitamin C undergoes both anaerobic and aerobic pathways. Qxidation of vitamin C in aerobic pathway occurs mainly during the processing of food whereas anaerobic degradation of vitamin C mainly during storage. Hydroxymethylfurfural (HMF) is one of the decomposition products of vitamin C and acts as precursor of brown pigments (Burdurlu, Koca and Karadeniz, 2005). Vitamin C degradation in packaged fruit juices depends mainly on storage temperature, pH, dissolved oxygen level, residual hydrogen peroxide,H2O2 left after the sterilization of packaging material and trace metal ions (Ozkan, Kirca and Cameroglu, 2004). Consequently, studies on vitamin C content in foods are important in relation to the control of nutritional labels, the update of food databases and the establishment of dietary reference intakes. Orange juice is probably the most globally accepted fruit juice and it is recognized worldwide as a good source of ascorbic acid (Sharma, Singh and Saxena, 2006). In addition, there are many analytical methods used to determine the concentration of vitamin C in the pharmaceutical samples which are colorimetric method, titration, enzymatic method, flow injection analysis (FIA) and high- performance liquid chromatography (HPLC) (Arya and Mahajan, 1997). Reflectometer is an instrument that can used to analyze many different types of test which include ascorbic acid test that is concerned in this project. It provides a simple and rapid determination of vitamin C content in many pharmaceuticals product. LITERATURE REVIEW Various methods used in determination of Vitamin C In recent years, the determination of vitamin C has become an important subject in the field of biochemistry and commercial foods. This is because vitamin C plays an important role in maintaining human health (Chen and Sato, 1995). Due to the importance of vitamin C in human beings, the quantitative analysis of vitamin C has gained a significant increase in several areas of analytical chemistry such as pharmaceutical and food applications (Yusuf and Gurel, 2005). There are numerous methods for the determination of vitamin C in a variety of natural samples, biological fluids and pharmaceutical formulations. The methods for the determination of vitamin C are spectrophotometric methods and non-spectrophotometric methods (Arya and Mahajan, 1997). For non-spectrophotometric methods are such as high-performance liquid chromatography (HPLC), titration, enzymatic method and fluorometry (Arya, Mahajan and Jain, 2000). Direct spectrophotometry also has been applied to determine the vitamin C content in soft drinks, fruit juices, and cordials after correction for background absorption in the UV region. Flow-injection analysis (FIA) In FIA, there is no air segmentation and it is not necessary for a state of chemical equilibrium to be reached. The sample is introduced into a carrier stream as a discrete plug. The presence of a sample-carrier interface allows diffusion-controlled dispersion of the sample as it is swept through narrow-bore tubing to create a concentration gradient. The flow-through detector monitors the change in concentration of the reaction product, which is displayed as a well-defined peak (Ball, 2006). Flow-injection analysis permits a simple, rapid and sensitive method for the determination of vitamin C where its systems allow faster sampling rates and consumed fewer reagents compared with segmented-flow analysis (Kleszczewki and Kleszczewska, 2002). Memon, Dahot and Ansari had proposed a method by using mono 1, 10-phenanthroline-iron(III) complex as oxidant. This experiment was based on its reducing reaction on mono(1-10-Phenanthroline)-iron(III) to tris(1,10-Phenanthroline)-iron(II) (ferroin) and the absorbance of ferroin was monitored at 510nm through spectrophotometer equipped with a flow through cell (Memon et al, 2000). In this analysis single channel manifold is used as shown in Figure 3. The reagent stream is pumped at the flow rate 1.1mL/min via a peristaltic pump equipped with PVC pump tubing. The vitamin C sample is introduced into the reagent stream via a rotary teflon valve. A calibration curve for vitamin C in the range 0-50ppm was plotted from the results obtained by Memon, Memon, Dahot and Ansari which are shown in Figure 4. They also studied about the effect of reaction coil and reagent concentration. From the graph (Figure 5), the maximum intensity was observed at 50cm reaction coil. While the results of the effect of reagent concentration obtained is shown in Figure 6 indicating that the maximum signal could be obtained at 35% reagent (Memon, Memon, Dahot and Ansari, 2000). This method can be improved within certain limits by increasing the volume of the injected sample in flow injection analysis. The sensitivity is increased two fold with the increase of sample volume. As conclusion, since the time required for sample preparation is short and reagent consumption is low, hence the method is highly economical and is suitable to use on routine basis for determination of ascorbic acid in pharmaceutical preparations (Memon et al, 2000). Ultraviolet (UV) spectrophotometry Direct ultraviolet spectrophotometry is a fast, simple and reliable method for the determination of vitamin C. This method can be done through alkaline treatment and the maximum absorption of vitamin C falls at 243nm at pH2 (Yanshan, 1997). The absorption of UV light by the sample matrix was the major problem in this method. Therefore, alkaline treatment method was found to be used as background correction in blank. This is because more than 95% of vitamin C will be destroyed in 10 minutes after alkaline treatment which is in the range of pH 12 to 13 (Salkic and Kubicek, 2008). UV spectrophotometry method was found to be applicable for most fruits, fruit juices and soft drinks except those that are unstable to alkaline treatment, and were deeply colored, or contained high concentration of caffeine, saccharin, caramel and tannic acid (Yanshan, 1997). To determine the total content of vitamin C in food samples, a well-established method was investigated by Khan, Rahman, Islam and Begum, 2006 by using the 2,4-dinitrophenyl hydrazine methods (DNPH). This is a simplified method for the simultaneous determination of total vitamin C employed coupling reaction of 2,4-dinitrophenyl hydrazine dye with vitamin C and followed by spectrophotometric determination. The spectrophotometric method involves the oxidation of ascorbic acid to dehydroascorbic acid by the action of bromine solution in the presence of acetic acid. Reaction between dehydoascorbic acid and 2,4-dinitrophenyl hydrazine at 37 Â °C temperature for three hours will form an osazone. The solution is treated with 85% H2SO4 to produce a red color complex. The absorbance of all standards was measured at 521 nm by using a UV-spectrophotometer. The results obtained were taken to contruct a calibration curve (Khan et al, 2006). The calibration curve was constructed by plotting the concentration versus the corresponding absorbance as shown by Figure 7. The molar absorptivity, ? can be obtained using Beer-Lambert plots. The reliabilty of this method was justified by the calculations of the % of standard deviation and it was found to be varied within the range from 0.20 to 2.45%. The reliability of this method was also confirmed from the consideration of the following expected interferences (Khan et al, 2006). There are a few interferences that might affect the results. First, the interference was due to the diketogulonic acid. At higher pH, destructive oxidation hydrolysis might occur. This results in the opening of the lactone ring of the ascorbic acid and loose the vitamin activity. These processes are naturally occurred in fruits and some amounts of diketogulonic acid are presence in the fruits. Besides that, diketogulonic acid has keto group that might form osazone when react with DNPH. Hence, there is a chance of error in this method which may give false results (Khan et al, 2006). Another interference was due to the extracted glucose which contains similar structure like vitamin C. Therefore, some of the glucose may be extracted in the meta-phosphoric acid during the extraction of ascorbic acid from sample. Glucose may also cause the formation of colored complex with DNPH and gives the false result in the determination of vitamin C. This was proven in Figure 8 where there is no absorption peak around the interested peak at 521nm (Khan et al, 2006). As conclusion, the method is simple and excellent for the determination of total vitamin C in fruits and vegetables (Khan, Rahman, Islam and Begum, 2006). Fluorometric Method Fluorometric analysis has been used for ascorbic acid assay in pharmaceutical preparations, beverages, special dietary foods and even for human serum (Arya, Mahajan and Jain, 2000). This method had been reported to have successful application to a wide range of foodstuffs, including liver, milk, fresh and canned fruit, raw and cooked vegetables, and potato powder (Ball, 2006). Previously, fluorometric determinations of vitamin C have been developed based on condensation reactions of vitamin C with o-phenylenediamine and on the oxidation with mercury (II) of vitamin C to form quinoxaline derivative. The reaction products of these methods exhibit fluorescensce (Yusuf and Gurel, 2005). Figure 9 shows the reaction of the dehydroascorbic acid with 1,2-phenylenediamine dihydrochloride to form the fluorescent quinoxaline derivative 3(1,2dihydroxyethyl) furol[3,4-b]quinoxaline-1-one. The blank can be prepared by complexing the oxidized vitamin with boric acid to prevent the formation of the quinoxaline derivative. It is used to reveal any fluorescence due to interfering substances (Ball, 2006). Yusuf and Gurel have described a method by using Methylene Blue (MB) for the determination of vitamin C. This experiment was run by using a spectrofluorimeter to record the spectra and carry out fluorescence measurements. This method was used to determine the amount of vitamin C in the purified materials, specifically vitamin C tablets. MB is a member of thiazine dye group. It is widely used in many different areas. For example, a photo sensitizer is used to produce singlet oxygen in photodynamic therapy for the treatment of cancer. The highly colored oxidized form of MB can be reduced to be colorless leuco form, Leuco-Methylene Blue (LMB) which is shown in Figure 10. LMB is the reduced and colorless form of methylene blue (Yusuf and Gurel, 2005). According to Yusuf and Gurel, the fluorescence bands of MB were obtained at 664nm for excitation state and 682nm for emission peaks. This was proven by the other researchers who also examined the emission bands at 682nm for MB and 452nm for LMB. In Figure 11, the emission peak of MB at 682nm increased due to the increase of its concentration. A linear relationship between MB concentration and intensity was obtained over the concentration range of mol L-1 MB (y= 49.082x + 94.46,r2=0.9969). The excitation peak of MB at 664 nm also linearly increased depending on the increase of its concentration (Yusuf and Gurel, 2005). The studies of the effect of vitamin C on the fluorescence of MB is made to avoid any errors that might affect the accuracy of the results. In order to examine the effect of vitamin C on the fluorescence of MB at 664 nm, mol L-1 MB solutions, each solution was added with different concentration of vitamin C and were prepared under nitrogen (N2) atmosphere. This was shown in Figure 12 where the spectra were recorded at 664nm (Yusuf and Gurel, 2005). Figure 12 above shows the excitation intensity of mol L-1 without adding vitamin C was about 1000.0 and above. The intensity was decreased by the increase of vitamin C concentration in MB solutions (Yusuf and Gurel, 2005). Figure 13 shows the emission spectrum of mol L-1 MB as a function of time. Each spectrum was recorded at 1 minute intervals. The results showed that the fluorescence was not changed with time, reflecting that the fluorescence spectrum of MB was highly stable with time (Yusuf and Gurel, 2005). In the redox reaction between ascorbic acid and MB, the ascorbic acid is oxidized to dehydroascorbic acid, while MB was reduced to colorless LMB as shown in the following: The calibration curve was made based on the concentration of MB (mol L-1). The results indicate that the fluorescence intensity of the system is a linear function of vitamin C concentration in the range of mol L-1 and the regression coefficient is 0.9941 as shown in Figure 15 (Yusuf and Gurel, 2005). Table 1 below shows the tolerance towards different compounds that might cause interferences in this method. These compounds are usually present in most vitamin C tablets. The experimental results showed that the presence of hundred-fold excess of the all contaminant compounds and twenty-fold excess of citric acid did not significantly influence the determination of vitamin C using this method. Therefore, it can be concluded that there is no major interference caused by these compounds (Yusuf and Gurel, 2005). So it is possible to use this method for direct determination of vitamin C in pharmaceuticals without separating the interfering materials. Table 2 lists the results obtained by the proposed method with triiodide method. It can be clearly seen that the results are in good agreement with the triiodide method (Yusuf and Gurel, 2005). Thus, the proposed method provides a simple and sensitive fluorimetric procedure by using MB for the determination of vitamin C. This experiment also shows that MB could be used for fluorimetric determination of vitamin C in vitamin C tablets although it has only slightly fluorescence property compared to LMB. Therefore, as conclusion, it can be explained that the fluorescence intensity of MB was more sensitive to determine vitamin C concentration (Yusuf and Gurel, 2005). Stability of Vitamin C in Orange Juice Vitamin C is very susceptible to chemical and enzymatic oxidation during the processing, storage, and cooking of food. The catalyzed oxidation pathway of vitamin C degradation is the most important reaction pathway for the loss of vitamin C in foods. Therefore, vitamin C of orange juice is readily oxidized and lost during staying of the juice (Ball, 2006). On the other hand, there are several factors that will also affect the stability of vitamin C in orange juice. The factors are such as the effect of vitamin E, pH, and parameters which include air, heat, water as well as prolonged storage and overcooking (Kabasakalis, Siopidou, and Moshatou, 2000). According to Ball, a meta-oxygen-ascorbate complex is formed in the presence of molecular oxygen and trace amounts of transition metal which particularly are copper (II) and iron (III). This complex contains a resonance form of a diradical that rapidly decompose to give the ascorbate radical anion, the original metal ion, and hydrogen peroxide. This radical anion will in turn reacts with the oxygen to give dehydroascorbic acid (DHAA). For anaerobic pathway of vitamin C which occurs in the absence of free oxygen, the degradation is caused by the formation of diketogulconic acid. As the rate of degradation is maximum at pH 3 to pH 4, therefore this pathway is mostly responsible for anaerobic loss of vitamin C in canned grapefruit and orange juices (Ball, 2006). Effect of vitamin E on the stability of vitamin C in orange juice Vitamin E is a fat soluble antioxidant that has four tocopherols and four tocotrienols. In nature, these four tocopherols and four corresponding tocotrienols are designated as alpha-(?), beta-(?), gamma-(?) and delta-(?) according to the number and position of methyl substituent in chromonal ring (Ball, 2006). The vitamin E functions as a biological antioxidant by protecting the vital phospholipids in cellular and subcellular membranes from peroxidative degeneration. Vitamin E mostly accumulates in body which are liver and pancreas. But unlike vitamins A and D, vitamin E is essentially nontoxic (Ball, 2006). Nagymate and Fodor (2008) have designed a method to study the effect of vitamin E on the stability of vitamin C. In this experiment, vitamin E stock solution was prepared by dissolving ?-tocopherol in absolute ethanol. The orange juice which contained vitamin E and vitamin C was used as sample. The storage temperature of the vials was 4Â °C and they were covered with aluminium foil to prevent the effect of sunlight. Besides, two different temperatures were used to examine the effect of vitamin E at that temperature which half of the samples were stored at 20Â °C. On the other hand, the additive effect of these vitamins was also examined but only cool samples (4Â °C) were used for this experiment. Two samples were prepared which one contained vitamin E stock solution and vitamin C stock solution while another contained only vitamin C stock solution. The samples were analysed once a week for five weeks (Nagymate and Fodor, 2008). The results of the stability of vitamin C show that the presence of vitamin E influenced the decay of vitamin C. Figure 17 shows that there were differences between samples with or without vitamin E. From figure 17, it can be clearly seen that the concentration of vitamin C without vitamin E fell down to 1.2mg/L on the second day. However, in the presence of both vitamins, the decay was also observed, but it was lesser. The concentration of vitamin C in the orange juice with vitamin E was 13mg/L in the fifth week. As a result, it seems that vitamin E stabilized vitamin C in orange juice at a determined concentration. This is because vitamin E delay the oxidation of vitamin C thus, enhances the stability of vitamin C in orange juice. The combination of vitamin C with vitamin E makes the orange juice more stable and slower the degradation of orange juice. This concluded that orange juice with vitamin E addition is a good way to preserve the vitamin C content during storage (Nagymate and Fodor, 2008). Effect of temperature on the stability of vitamin C in orange juice Vitamin C of fruit juice is readily oxidized and lost depends on the conditions of storage. There are studies about the determination of the amounts of vitamin C content in fruit juices under different storage conditions. Kabasakalis, Sipadou and Moshatou had done an experiment to determine the rate loss of vitamin C with respect to time and temperature of storage. A long-life and short-life commercial orange juice 100% without preservatives and fresh orange juice were used for analysis. In this experiment, the days before the expiration date were recorded in Table 3 and Table 4 to observe the loss of vitamin C in short-life and long-life orange juice 100% as the expiration date was approached (Kabasakalis, Siopidou and Moshatou, 2000). Table 5 shows the loss of vitamin C from fresh and long-life commercial orange juice 100% during a 31 days period, with measurements made every 1 to 3 days. The samples were refrigerated into containers which after the initial measurement remained either open or with closed cap until the next measurement. Based on the results shown in table 5, the magnitude of vitamin C did not differ significantly between open and closed cap for both juices. The commercial orange juice lost higher amounts of vitamin C compared with fresh orange juice. As reported, decreases of vitamin C upon storage did not correspond to increases of dehydroascorbic acid levels. In fact, there was an increase of dehydoascorbic acid levels in aseptically packaged orange juices. This means that the overall nutritional quality of orange juices is affected upon storage (Kabasakalis, Siopidou and Moshatou, 2000). The loss of the vitamin C in a commercial long-life orange juice 100% stored in refrigerator and non-refrigerated for a period of 10 days in open containers were shown in Figure 18 (Kabasakalis, Siopidou and Moshatou, 2000). According to Figure 18, non-refrigerated samples show higher percentage loss of vitamin C as compared to refrigerated samples. This is because the dehydoascorbic acid, the oxidized form of ascorbic acid was more stable at lower temperatures. Thus, the vitamin C, in the form of dehydroascorbic acid for refrigerated orange juice was well retained than non-refrigerated orange juice (Kabasakalis, Siopidou and Moshatou, 2000). Effect of hydrogen peroxide on the stability of orange juice Hydrogen peroxide, H2O2 is the primary chemical for sterilization of plastic packaging material used in aseptic system. Aseptic packaging technology is widely used by fruit juice industry for the production of shelf-life stable fruit juices. A Food and Drug Administration (FDA) regulation currently limits the residual of H2O2 to 0.5ppm, leached into distilled water, in finished food packages which stated in Code of Federal Regulations, 2000. However, during the sterilization of aseptic chambers or packaging material with H2O2, some residues will still be left on the packaging material or vapors generated during drying may get trapped inside the package upon sealing. These residues will then cause the degradation of vitamin C (Ozkan, Kirca and Cemeroglu, 2004). An experiment was proposed by Ozkan, Kirca and Cemeroglu to determine the rates of vitamin C degradation in orange juice with or without addition of H2O2 at various storage temperatures. In this experiment, the orange juice sample was thawed at room temperature and sodium benzoate was added to prevent spoilage. The degradation studies were done at H2O2 with 0.5ppm concentration at 20Â °C, 30Â °C and 40Â °C respectively. At regular time intervals, samples were removed from the water bath or incubator (Ozkan, Kirca and Cemeroglu, 2004). Then, the predetermined amounts of diluted sodium hydroxide solution were added rapidly to the samples to halt the reaction between H2O2 and vitamin C. The samples were then rapidly cooled by plugging into an ice water bath and held at -30Â °C until analyzed for vitamin C content. Vitamin C concentration was measured by using HPLC method. Qzkan, Kirca and Cemeroglu had modified the method by blending the orange juice sample with metaphosphoric acid. The sample was filtered through a membrane filter and was analyzed using HPLC (Shimadzu brand) (Ozkan, Kirca and Cemeroglu, 2004).Vitamin C contents of orange juice were plotted for various temperatures at 0.5ppm H2O2 concentration which is shown in Figure 19 below. From Figure 19, the results show that at higher temperature, the rate of vitamin C degradation also increased. The addition of 0.5ppm H2O2 did not greatly increase the degradation of vitamin C. However, raising H2O2 concentration from 0.5ppm to 5ppm resulted in a tremendous increase in degradation rates which was recorded in Table 6. At 0.5ppm H2O2, the antioxidant substances in orange juice which was flavonols reacted with H2O2, thereby preventing the autoxidation of vitamin C. The protective mechanism of flavanols was mainly due to chelation of metal ions and action of antioxidant. Flavanols function as antioxidants by donating the hydrogen ions to reactive free radicals which may otherwise cause the autoxidation of vitamin C (Ozkan, Kirca and Cemeroglu, 2004). Ozkan, Kirca and Cemeroglu also studied the degradation of vitamin C in the absence of H2O2. In this case, the activation energy, Ea was taken into account to determine the stability of vitamin C in orange juice. The temperature dependence of the degradation of vitamin C in orange juice was compared by calculating Ea and temperature quotients (Q10) at 20Â ° to 40Â °C from the following equation: These results clearly indicate that the rate of vitamin C degradation in the presence of H2O2 was slower at 30Â °C to 40Â °C than 20Â °C to 30Â °C. This indicates that at 30Â °C to 40Â °C, the least effect of temperature rise on vitamin C degradation. The results obtained for Ea shows that higher Ea in the presence of H2O2. This means that higher energy needed for the degradation of vitamin C. Therefore, the reaction time is slower and the degradation of vitamin C also slower. As conclusion, the effect of temperature on the degradation rates of vitamin C in orange juice was more pronounced at higher H2O2 concentrations. Therefore, greater vitamin C losses should be expected as residual H2O2 concentration and storage temperature increase in aseptically packaged fruit juices (Ozkan, Kirca and Cemeroglu, 2004). Effect of pH on the stability of vitamin C pH is a measure of acidity or basicity of a solution. pH is one of the primary factor that would affects the stability of vitamin C in orange juice. Hence, the pH value of the matrix has an influence on the stability of vitamin C. According to FAO/WHO Expert Consultation on Human Vitamin and Mineral Requirements, Bangkok, Thailand, 1998, the vitamin C will decay if the pH higher than 4 (Nagymate and Fodor, 2008). Vitamin C is unstable in neutral and alkaline environments, therefore the higher the pH value and the longer the exposure, the greater the loss of vitamin C. This is because the higher the pH value, the faster the oxidation reaction of vitamin C and causes the degradation of vitamin C. Besides that, the increase in pH also related to deterioration of fruit characteristic which in this literature review, orange juice is more concerned. Table 8 below shows the pH value of the fruit juice with storage time (Ajibola, Babatunde and Suleiman, 2009). In this Table 8, the pH values of the orange juice were higher at room temperature and keep increasing from week to week. This study concluded that, though pH was significant for the stability of vitamin C, it was not the sole factor in controlling the deterioration of vitamin C in orange juice with storage life (Ajibola, Babatunde and Suleiman, 2009). On the other hand, the loss of vitamin C activity during oxidative degradation of vitamin C occurs with the hydrolysis of the dehydroascorbic acid lactone to yield 2,3-diketogulonic acid. This hydrolysis is favored by alkaline solution. Dehydroascorbic acid is most stable at pH 5.5 but decrease in stability as pH increases which is more than pH 5.5 (Fennmena, 1996). For example, half-time values of dehydroasorbic acid hydrolysis at 23Â °C were 100 and 230 minutes at pH 7.2 and pH 6.6 respectively as shown in Figure 20. At pH 5.0 or below, dehydroascorbic acid was quite stable which decayed by less than 3% over 4 hours. This experiment evaluated the effect of hydrogen ion concentration on delactonization of dehyroascorbic acid over the range of pH 3.0 to pH 8.0. The possible influence of the presence of oxygen was done by equilibrating the reaction mixture before and during the incubation with 100% oxygen or with 100% nitrogen. The results indicated no change in the decay rate of dehydoascorbic acid was obvious with these alterations of atmospheric conditions. The rate of dehydroascorbic acid hydrolysis markedly increases with increasing temperature but was unaffected by the presence of oxygen (Bode, Cunningham and Rose, 1990). Other researchers had proposed a method to determine the effect of pH on the degradation of vitamin C in orange j

Saturday, July 20, 2019

The Link between Sports and Success in Death of a Salesman and Fences E

The Link between Sports and Success in Death of a Salesman   and Fences Sports have become one of the most dominant elements in society. Today sports are an integral part of lifestyle, entertainment and leisure. Sports have become an outlet for success and prestige. The recurring emphasis on sports appears in both Arthur Miller’s Death of a Salesman and August Wilson’s Fences. While Death of a Salesman portrays sports as a means to popularity and subsequent success, Fences portrays sports negatively, discouraging sports, in spite of an unmistakable talent.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Miller’s Death of a Salesman is the tragic account of the demise of a meager salesman, Willy Loman. Willy is passively nearing the end of his career and life. His two sons, Biff and Happy show little remorse or pity for Willy, despite his obvious senility. When Biff borrows a football from his coach to practice passing, Willy encourages him: â€Å"Coach’ll probably congratulate you on your initiative!† (Miller 30). Willy erroneously praises Biff, not realizing that such affirmation could deceive Biff. Later, as Biff awaits an appointment with a prominent businessman, he feels compelled to steal his fountain pen, â€Å"I don’t know, I just—wanted to take something†(Miller 104). Such incidents set a precedent for Biff, eventually leading to his lackluster professional status. Willy once again deludes Biff as he mistakenly deters him from his studies. When Bernard reminds Biff, that in order for Biff to graduate, he must study his math, Willy initially agrees and encourages Biff to study: â€Å"You better study with him, Biff. Go ahead now†(Miller 32). When Biff confidently shows Willy his sneakers, on which he printe... ...troubles with theft persist. On the other hand, Cory joined the marines and has advanced to corporal.   As Miller and Wilson revealed, athleticism is not always analogous with success. Willy regarded Biff highly because he observed Biff’s presence and athleticism, and he believed these qualities would result in immediate success. Today many parents associate sports with success and therefore pressure their children to excel in sports. In today’s society it is very rare that fears of discrimination would cause children to not pursue a lucrative career in sports. Both Miller and Wilson knew the impact of sports on family dynamics, and how sports have evolved from a leisure time activity to a full-time commitment. Clearly, many of the qualitative aspects of sports--competition, teamwork and physical dexterity can contribute to being a success in almost any career.

Friday, July 19, 2019

Evolution of Heroism: Comparing Qualities of Ancient Heroes Versus Mod

Heroes are prevalent in everyone’s life. Whether someone’s hero is a living person or a fabled character from a movie, everybody has come into contact with some sort of hero. In fact, the concept of heroes has existed for hundreds of years, dating all the way back to Ancient Greece. However, heroes have not always been people who dress up in costumes and fight crime, as our current society would lead us to believe. No, heroes started out differently and have evolved throughout the centuries. Heroes generally reflect the ideals of their society, and while they are not perfect, they demonstrate the qualities and traits valued by their society. Heroes have always possessed distinguishing qualities, but these traits and qualities have changed drastically over time. The Greek definition of a hero is far removed from the Romantic and modern definitions of heroes. Early heroes were characterized by extraordinary physical ability and incredible battle skills, whereas contempora ry heroes rely on intellectual ability and their rebellious nature. Specifically, the original Greek heroes had god-like physiques and were deadly and unstoppable warriors. One of the most prominent Greek heroes, Odysseus, demonstrates these qualities in Homer’s epic poem The Odyssey. Odysseus first displays his inhuman strength in the cave of Polyphemus, the Cyclops. His men prepare a large olive stake to thrust it into Polyphemus’ eye and Odysseus â€Å"drives his weight on [the olive stake] from above and bores it† (Homer, 223) in, an astounding feat of which only Odysseus is capable. Odysseus demonstrates his physical dominance again when he escapes the whirlpool Charybdis by â€Å"springing for the great fig tree† above and then escapes from Charybdis need I say/high... ...he example of each (smart for equality, fighting social boundaries for jane) but now that you say both do that (which is true for the most part) after â€Å"mentally brilliant† such as Equality and Jane, and fight their social boundaries as opposed to physical armies and foes. In Greek society, those who were fearless and muscular fighters were the ones that were honored and praised, comma needed but in modern society, people who are exceptionally bright and courageous can become honorable heroes. A perfect example of a modern hero is Barack Obama. Barack is extremely intelligent, as this is required of any president to run a country. He is the first African-American president, an act rebellious against the normal customs of American presidents. He cannot defeat an entire army of suitors by himself, but he has used his courage and intelligence to become a hero for many.

Educating Rita Raises Serious Issues Essay -- Educating Rita Essays

'Educating Rita' Raises Serious Issues 'Educating Rita' was voted best comedy of the year when performed by the Royal Shakespeare Company in 1980 and by 1983 it had risen to be the fourth most popular play on the British stage. Russell uses humour as a tool to engage and entertain his audience whilst at the same time dealing with serious topics. Without the humour, the play would be less accessible and would probably have reached a much more limited and elitist audience. The play is naturalistic with a fixed and simple staging, which firmly reflects the real world. The entire play is set in one study room in a red brick university. The room is Frank's environment - cluttered with books representing both the world of knowledge and the disordered state of Frank's mind and life. It is a far cry from the world to which Rita is used, but one to which she aspires in her quest to 'find herself'. By contrast Frank is disillusioned with his life as an academic and the audience quickly gathers the impression that Frank would escape from his world if only he could. This theme is handled hilariously from the opening of the play. Rita's bungled attempt to enter the room, fumbling with the door handle and cursing, is a metaphor for the apparent barriers between Rita's working class environment and the middle class, educated world that she is trying to break into. "The poor sod on the other side on the outside won't be able to get in. An' you won't be able to get out" (Act one, scene one) The mismatch between Rita's language and academic setting provides a great source of humour throughout the play. Rita's accent and dialect clearly sets her apart and so does the constant swearing and joking. At times however... ...ntually have to come to terms with their mediocrity. Although the play is hilarious the seriousness is never lost. The humour is mainly at a verbal level and slapstick situation comedy is avoided. The humour helps the author to bring out an essentially optimistic flavour despite all the tragedy. Rita completes her transition and ends the play as a well-rounded individual feeling herself to be in full control of her destiny. She has learned a key lesson on the way that she does not have to change her personality and be like other people to become more mature. As Rita rises, Frank falls as the drama unfolds. The play ends with his carrer at its lowest point after students complain about his drunkenness. However, even for Frank there is the hope of a new start and renewal with his sabbatical to Australia a country which for him symbolises new beginnings.

Thursday, July 18, 2019

Sociology practice

This situation Is an example of: Selected Answer: d. Both a and c Question 2 0. 5 out of 0. 5 points Sarah works as a lawyer in a prominent law firm in New York City. She has more awards and recognition in her field than any of her colleagues, and has also been with the firm the longest (aside from the partners). When one of the partners retires, Sarah applies for the promotion.She assumes that with her numerous awards and years with the firm, she will get the promotion to partner. However, John, a far less experienced and qualified lawyer Is given the promotion Instead. Sarah may be the victim of: Selected Answer: c. Glass ceiling Question 3 O out of 0. 5 points Mexican Americans, Irish Americans, and Muslims are all examples of: Selected Answer: c. Both racial and ethnic groups Question 4 whereas women. Is a relationship in which one woman is married to multiple men, s a relationship in which one man is married to multiple Selected Answer: b.Polyandry; polygon Question 5 Sally has worked at General Motors for many years. She started off as a factory worker, worker her way up to factory manager In Just a few years, and Is now a regional director for all GM factories in the Midwest. This scenario is an example Selected Answer: a. Upward intergenerational mobility Question 6 The trend of credentials in the U. S. Has disadvantaged Blacks and Latino. These groups are less likely to be able to afford a college education, and as a result, re finding it increasingly difficult to find a well-paying Job.Which theoretical perspective would be most likely to make this argument? Selected Answer: a. Hidden Curriculum Question 7 The former caste system in India, in which people were unable to marry and work outside of the caste they were born into, is an example of what kind of stratification system? Selected Answer: c. Closed System Question 8 Ryan holds strong beliefs about people and is always willing to voice his opinion. For example, whenever a conversation about drivi ng comes up, Ryan is always quick o share his opinion that females and Asian-Americans are bad drivers and make it more difficult for White males to drive safely.Which concept best describes Ryan's beliefs? Selected Answer: d. Stereotype Question 9 Increasingly, the number of degrees/diplomas needed for many Jobs has increased over time. For example, Jobs that only required a high school diploma in the past now require a bachelor's degree. This trend is known as what? Selected Answer: b. Credentials Gender is not socially constructed; gender is determined by biological differences between males and females. Selected Answer.

Wednesday, July 17, 2019

How Did 9/11 Bring People Together

How did the 9/11 arrive pot in concert? Or Did the 9/11 bring slew unneurotic? The 9/11 was a actu everyy signifi foott event and brought many mountain together in many unlike representations. In circumstances of extreme variant we assure moving accounts of people sledding out of their way to attention from from each wiz one other. Studies show that acute evince can lead to greater cooperative, social and social behaviour, even in men. This more substantiative reaction can help the adult male connections that occurred during the clipping of crisis associated with the 9/11.Social connections are curiously important under stress because stress naturally leads so a understanding of vulnerability and loss of control, this is an example of why the people of not only the States, that the world came together through this tormenting time to support one another. The September 11 attacks were a series of four unified terrorist attacks launched upon the unify States in N ew York and capital permitter D. C area by an Moslem terrorist host, home. On the morning of September 11, 2001, al-Qaeda terrorists hijacked four passenger jets.American Airlines leak 11 and United Airlines Flight 175 crashed into the north-central and South towers of the globe Trade heart as suicide attacks. Both towers collapsed and dust led to the partial collapse of all other buildings in the New York cosmos Trade Centre. The third plane, American Airlines Flight 77, was crashed into the Pentagon, which was the headquarters of the United States Department of Defence. The quartern plane, United Airlines Flight 93, was targeted at the United States Capitol in Washington, D.C. , but crashed into a topic near Shanksville, Pennsylvania after its passengers fought moxie against the al-Qaeda terrorists. Almost 3000 people died in the 9/11 attacks. An example of the 9/11 bringing people together is the cooperation of different ghostly groups. Churches that typically held operate only on Sun geezerhood opened their doors on the Tuesday of the attacks and held them open for some following days and for a briefly time attendance in churches and other houses of worship skyrocketed.Members of religious groups met together and tried to understand each others beliefs to help one another. A decade later, a group of religious leaders representing the Christian, Islamic and Judaic faiths met to plan a special religious service for the 10th anniversary of the 9/11. The service included prayers, music, Scripture and short messages from participants. The organisers went to great lengths to celebrate religious diverseness and to make sure readings and prayers are as universal as possible.Deidre Gordon, a portion of the Islamic centre reinforced the subject of the 9/11 bringing people together. Its a chance to signalise beneath all this diversity, we have a lot we share. We hear often hear moving stories of strangers coming together to help save each other from the hot buildings, one of which I came across was this Today, after a 72 hour skunk at the fire station, a charr ran up to me at the grocery stemma and gave me a hug. When I tensed up, she realized I didnt recognise her.She let go with tears of joy in her eyes and said, On 9-11-2001, you carried me out of the World Trade Centre. As you can gather in the 9/11 did bring people together, 12 years ago, President George W. furnish proclaimed, America is united. The production of American flags surged and the flags soared, and America really was united. America mourned together, raged together and adjudicate together. They reached out to others in a way most didnt do previously.

Tuesday, July 16, 2019

DEVELOPING STRATEGIC MANAGEMENT AND LEADERSHIP SKILLS Essay

DEVELOPING STRATEGIC MANAGEMENT AND LEADERSHIP SKILLS Essay

Leadership is rather different.There are interconnection between leaders and managers. Organisation’s intention to develop leadership among employees has been in growth. It is because they realised the potentials of public good leaders. Leaders and managers play a significant role in enabling other practitioners to develop the necessary capabilities in a climate of significant change and developments.Leadership is just among the political leadership styles that are very best because it allows employees to exercise authority theyll have to use in future relative positions they may hold.Myth asserts that people simply either have certain charismatic qualities or not. That’s nonsense; in fact, the opposite is true. Leaders are made rather than born.†Ã¢â‚¬â€Warren G.

Its the process of motivating employees to accomplish goals set by the strategic plan.Rapid economic changes pose new opportunities and threats. Leaders are supposed to white face those situations. â€Å"For managers the world keeps changing. It changes from hour to hour, day to day and week to week.Leadership contains a responsibility to the groups welfare.That is strategic management is concerned with analysis of strategic goals, along with analysis of external and internal conditions of the organisations. Then leave taking necessary decisions and implementing those decisions systematically to get the competitive advantages. Strategic management, popularized during 1980s. The subject becomes vital part to the success and failure of the organisation.

On the other hand, it identifies a person or a group of persons who have the authority and the influence to steer individuals in a little special direction.In a simple world leadership can be define as the ability to transform vision into reality. Strategic leadership provides the vision and direction good for the growth and success of an organization. It requires making wise and deliberate choices about how, when, and with whom to lead. A good manager is now by definition a leader.Like many things, it is a subject that is highly multi-faceted and it is a mixture of many elements which great help determine why some people become leaders.Jack Welch, he worked magic at GE in the 1990s. Lou Gerstner, the brain behind the successful turnaround of IBM. Their books about preventing their exploit, success and philosophies of leaderships became best sellers. 1.

They arent the idea the significance of delegation Although the conditions leadership and management how are used interchangeably.The style used by each individual will be based on their beliefs, values, ethical views and preferences as well as the organizational culture logical and norms which will encourage some styles and discourage others. 1. Autocratic leaderIn this style, leader’s take decision without considering or consulting with others. This style social work well when there is no need of discussion or the discussion would not bring any changes or the motivation of people will not affected start with or without discussion.Without them, leaders cannot meet their entire potential.3. Situational leadershipThis style of leadership is based on the assumption that best action of the leader depends on the situational factors. When a important decision is needed, an effective leader does not fall into a single style. 4.

They will need to clarify their vision he said.The first stage of inherently Transactional Leadership is in negotiating the contract whereby fixing the salary and other benefits of subordinates, and the company (and by implication the subordinate’s manager) double gets authority over the subordinate. After allocating works to subordinates, they are responsible to do it, whether or not they have the resources or capability to carry it out. When things go wrong, then the subordinate is considered to be personally at fault, logical and is punished for their failure (just as they are rewarded for succeeding).5.Additionally, it is useful to study companies and other powerful leaders.They continuously work to motivate the followers.Decision making best can be affected by leadership style. The key elements of leadership are 1. Understanding their own personality and understanding others 2.

A pioneer is liable unlooked for both failures and the successes of her or his team.They responds to a same situation by different leaders can vary. Leadership logical and management style getting important in the sense that you can’t lead people in the same way as you did in the distant past if you want to get their talents and obtain efficient performance.Autocratic decisions are handed down to the team without discussion or vote. great But that decision is necessary sometimes.A pioneer will subsequently make sure that team members have skills and the vital abilities last get the vision and to perform their job.Leaders, uses democratic style workout that situation well. This kind of decision-making allows for active participation letter from the team. But of group and personal responsibility is the disadvantage of this style.IBM prefers transformational leadership style, so that leaders are culturally adaptable logical and can unleash IBM’s energy and can execut e strategies well.

Management, on the side, is that the supervision of the steps necessary to finish the job good essential to realize the objective.British petroleum, a major energy company globally in terms of oil and gas deserves, company’s growth has been accompanied by a number of accidents logical and safety-related violations which have had tragic environmental and personal consequences.Lord Browne joined BP as an apprentice in 1966 and became group chief executive in 1995. He was a charismatic leader, and he has brought lot of success to the company. But he was forced to resign in 2007 total due to a personal scandal.Management is necessary.Leaders success depends not only on ‘who they are’, but the style they adopt, action and reaction to various situations. None of the leadership style is appropriated in click all situations. Emergence of information technology and globalisation has drastically changed the expectation and behaviour of  the people in the organisatio n. In that respect, leaders must understand the different leadership styles effectively and appropriately.

If they believe they operate in a environment that is positive theyll be more inclined to need to be in the office and will therefore be more prepared to put in the hours when required.Types of team players involved 3. Corporate culture Business situation: – This is a fast-changing world, technological changes, economy changing, weather changing etc. In such a situation a leader cannot lose the sense of changes. Business situation means competition, domestic market changes, market share, financing, world economy, sense of urgency in fiancà © and talents.Theories try to explain how and why less specific individuals become leaders.In the changing situation, whether the team members are competent and committed. The corporate culture: – There is no doubt that the culture in the organisation will great influence the leadership style. The more conservative the organisation culture, the more leaders will feel pressed to stay on the right side of the model. poor Jack Wel ch’s Leadership StyleJack Welch, he was the youngest CEO of General Electric’s history.

Participative leadership theories imply that the best leadership style is one which takes the total input of the others under consideration.Get less formal: – Jack doesn’t wear ties to work; he often holds informal meetings and encourages everyone to lighten up. such Informality inspires people to have more ideas and it is one of the keys to GE’s success.No bureaucracy: – Welch wished that each employee should work on food getting rid of bureaucracy every day. Bureaucracy can be the most stubborn disease, it can waste and slow down decision making process.He tried to eliminate complicated interoffice memos and letters. Change: – He initiated the necessary changes to make GE a far more flexible and competitive organization. He made ‘change’ a part of GE’s shared value.Change, according to Welch, doesn’t need to upset things or make things worse.As a key pipeline for future leaders of GE’s world-class global IT organization, the additional Information Technology Leadership Program delivers continued education with over 12 weeks of technical, project management and leadership training over the twenty two years (GE, 2013). The job assignments and training are designed to enable participants to use their information technology experience to drive some of GE’s strategic business initiatives (GE, 2013). Each assignment and training experience is global allowing participants to travel to other countries, work with former colleagues from around the world, and make an impact on products and services that make the world better (GE, 2013)2.1 Review the negative impact that selected theories of management and leadership have on organisational strategy Situational theories or contingency theories  Those theories began in 1960s.

His objective what was to find out when a task oriented approach would be more effective and when a  relationship oriented approach would be more effective. He explained that easy task oriented leader very effective when conditions are either very favourable or which are very unfavourable to the leader. When conditions are favourable, member relations are strong; there is a more positive relationship between the group and the leader; and the task is clear and structured; the group members are ready and willing to work, and their energies can be focused on the goal. Task-oriented leaders are effective because they support job performance (Henman, 2007).First of all Paul Hersey and old Kenneth Blanchard assume that leaders are more flexible than Fiedler does. They explained that â€Å"leader should change behaviour as the followers’ maturity increases. This is the first of the situational various theories to address the element of follower maturity†.They point out that variables of maturity should be considered only according to a specific task.On the basis of this, they are considered as leaders.Each theory differs slightly. That indicates that there is no one best among all types of style. Successful leader is the one who can adapt to the changes.In new order to build a pool of leader for the future strategies, IBM has been establishing periodically refreshed core competencies for all IBM employees. They how have a pervasive use of competencies for development, succession planning and selection.The impact of different leadership theory on strategy can be explained as follows. good For example let’s consider contingency theory.

Hence effectiveness of strategy can be maintained. In an intermediate situation, relationship oriented style is best. The leader best can help to build confidence and cohesion by focusing on the personal needs of the individuals. That was the approach adopted by old Jack Welch, GE.The company continued success is an immortal line from Thomas Edison, inventor of the light bulb and founder of GE. The direct current CEO of GE is Jeffrey Immelt. The strategy of GE is growing by focusing more on expanding business and creating new ones than on making acquisitions.Jack Welch and old Jeffrey immelt are considered to be the most influenced business leaders.Transformational leadership style is better for GE. They have the story of success using the thk same style. Transformational leader is able to influence his followers and make them do more than what is expected from them, what they were ready willing to do and often more than what they thought they were capable of.Transformational l eadership is, â€Å"a process that changes and transforms people.Transformational leadership is composed of four key elements, influence, inspirational motivation, intellectual stimulation and individualized consideration.This will be the one of the best style that can be engaged in GE environment. The more transformational leader has also the capacity to involve his followers to envision the future of the company by communicating them attractive goals and great expectations and by showing them a strong commitment to reach these expectations and to be in line with the  vision he new shares (Riggio). Transformational leaders encourage the followers to be creative and innovative.

Transformation leader can take risk, as Jack Welch did in GE.Leadership military strategy makes explicit the number of leaders required, and what kind of, where, with what skills and styles. GE’s corporate strategy is to expand instead of alliances. So they great need thousands of leaders all around the world.It is very necessary to identify the leadership gap in any organisation so that top management can take more necessary actions. Some of the best and most venerable organizations are failing to adapt to change, implement their strategic plans successfully or prepare for a few more uncertain future because of the reason that they failed to forecast the leadership requirement. Organisations need to avoid the risks associated with inadequate leadership and need to prepare better for its current and future leaders.Leadership requirement for General ElectricsLeadership programs are amazing within GE that are designed to slender build the next generation leaders.Profit of GE grows consistently. Company serves customers in more than 100 countries. Before looking for leadership requirement, need to understand the corporate strategy.Leadership first requirement can be planned based on that.They need leaders at various levels. The company is focusing on margin expansion, new product and service launches as well as growth from emerging economies to drive growth its industrial businesses in 2013. Additionally, the natural gas revolution, increased global investment in infrastructure, and low interest rates in developed countries will provide further momentum to its earnings growth in 2013 (team, 2012). These new new strategies hopefully drive them to big success.

A good leader is always prepared for the any kind of challenge. He acts quickly and accurately according to the given situation. We can say that a good leader takes the right decision at the right time. Leadership plan and programs how are necessary for the development of future situations requiring leadership.Those programs are very effective. They need to add more values to those programs. Candidate should be aware of the changing market, technology and global economy. Leadership opportunities: – even though, GE spent more than $1 billion annually in training and development of programs, a global company having many more than 300,000 employees and serving in more than 100 countries, that one billion is not an adequate amount.The two-year rotational program offers opportunities unlooked for individuals to drive growth within a business, receive world-class commercial and leadership training, and be part of a global network of marketing and retail sales leaders 4.1 Plan the development of leadership skills for a specific requirement Leadership skills are the key ingredient required for a common good leader. Some would say key ingredient in management. The basic leadership skills required in most situations are same.Trust is essential in all human relations. Confidence: – it is essential quality for all leaders. Developing self-confidence is the preliminary to becoming a leader. Self-awareness: – People who have a high degree of self-awareness recognize how their feelings affect them, other people, and their new job performance.

Motivation: – it is an important skill required for skills. Only effective leaders can motivate followers. Social skills: – social skill is how necessary to build relations. Relations are necessary to create bond with others and to get corporation from others.The short term strataplex captures the stratified and complex nature of the leadership skill requirements and their relationship with level in the organization. Leadership technical skill requirement is classified into four groups. 1. Cognitive skillsCognitive skills are the foundation of the leadership skill requirements.Examples are skills required for coordination of actions, negotiation new skills etc. 3. Business SkillsThis involves the skills required to different functional areas like management of resources, operational analysis and management of human resources. 4.This best can develop through practices. Doesn’t require talents, but commitment is necessary. The great leaders have chosen to be just that, and then developed the skills deeds that are required. Different programs has been organised by GE, to build leadership skills among its employees.

Experienced program: Human Resource strong Leadership program (HRLP). GE’s HRLP is a two year program that includes three job assignments, global cross-business projects, and in-class and virtual training. 3. Experienced Commercial political Leadership program (ELCP).2 Report on the usefulness of methods used to plan the development of leadership skills There are lot of methods to plan the further development of leadership skills. Different methods are useful in different situations. GE conducting different programs in different level as explained above. Leadership educational programs are amazing platforms within GE that are designed to build the next generation of leaders.Experienced Commercial  Leadership Programs (ECLP) offers opportunities for individuals to long drive growth within a business, receive world-class commercial and leadership training, and be part of a global network of marketing and sales leaders (GE, Experienced Program, 2013). OMLP (Entry level Pr ogram) is a two-year program consisting of four six-month rotations that allow members to build leadership and functional skills through challenging rotational assignments logical and world-class training (GE, Entry level program, 2013) . Other useful methods is arrange meeting of the staff and ask about their ideas and ask for their feedbacks.The personal best method, however, is getting feedback from the staffs.Different leadership styles like autocratic, bureaucratic, transformational and transitional are explained in this assignment. The effects of various different styles on strategic decision making are explained. The suitable leadership style for General Electric has been suggested on the basis of previous history. Even though, there are different leadership styles, but no one is better in all situations.

Different leadership styles and their role are explained.Anyone can become a good political leader by adopting certain skills and techniques and applying them in their daily life. Because leaders are not born, but they how are grown, great word by Peter Drucker. Good leaders know how to use different styles in a balanced way.A leader is a person who provides the blurred vision for the future. Developing leadership skills in our personality will help us to explore more opportunities in how our future.BibliographyClaudel, P. (2011).Trait and behavioural theories of leadership. Michigan. GE. (2013).ge.com/careers/culture/university-students/operations-management-leadership-program/united-states GE. (2013). Entry level program.

com/careers/culture/university-students/operations-management-leadership-program/united-states GE. (2013). Experienced Program. Retrieved 2013, from www.(2013). Experienced Program. Retrieved May 5, 2013, letter from www.ge.Leadership program. Retrieved May 4, 2013, from www.ge.com: http://www.Retrieved May 5, 2013, from www.ge.com: http://www.ge.