Toxic Shock Syndrom

About Toxic Shock Syndrome Toxic shock syndrome (TSS) is a serious but uncommon infection caused by either Staphylococcus aureus bacteria or by streptococcus bacteria. Originally linked to the use of tampons, especially high-absorbency ones and those that are not changed frequently, it's now also known to be associated with the contraceptive sponge and diaphragm birth control methods. TSS also can arise from wounds secondary to minor trauma or surgery incisions where bacteria have been able to enter the body and cause the infection. TSS also can affect anyone who has any type of staph infection, including pneumonia, abscess, skin or wound infection, the blood infection septicemia, or the bone infection osteomyelitis. Most often, streptococcal TSS appears after bacteria have invaded areas of injured skin, such as cuts and scrapes, surgical wounds, and even chickenpox blisters. Symptoms of TSS can include sudden high fever, a faint feeling, diarrhea, headache, a rash, and muscle aches. If your child has these symptoms, call your doctor right away. Symptoms Toxic shock syndrome starts suddenly, often with high fever (temperature at least 102 ° F [38.  ° C]), a rapid drop in blood pressure (with lightheadedness or fainting), vomiting, diarrhea, headache, sore throat, or muscle aches. A sunburn-like rash may appear anywhere on the body, including the palms of the hands and the soles of the feet. A person also might have bloodshot eyes and an unusual redness under the eyelids or inside the mouth (and vagina in fem ales). The area around an infected wound can become swollen, red, and tender, or may not even appear infected. Other symptoms may include confusion or other mental changes, decreased urination, fatigue and weakness, and thirst. If TSS is untreated, organs such as the liver and kidneys may begin to fail, and problems such as seizures, bleeding, and heart failure can develop. Prevention The bacteria that cause toxic shock syndrome can be carried on unwashed hands and prompt an infection anywhere on the body. So good hand washing is extremely important. Girls can reduce their risk of TSS by either avoiding tampons or alternating them with sanitary napkins. Girls who use only tampons should choose ones with the lowest absorbency that will handle menstrual flow, and change the tampons frequently. On low-flow days, girls should use pads instead of tampons. Between menstrual periods, store tampons away from heat and moisture (where bacteria can grow) — for example, in a bedroom rather than in a bathroom closet. Because staphylococcus bacteria are often carried on hands, it's important for girls to wash their hands thoroughly before and after inserting a tampon. If your daughter has her menstrual period, talk to her about taking these precautions. Any female who has recovered from TSS should not use tampons. Clean and bandage all skin wounds as quickly as possible. Call your doctor immediately whenever a wound becomes red, swollen, or tender, or if a fever begins. Diagnosis and Treatment TSS is a medical emergency. If you think your child has TSS, call a doctor right away. Depending on the symptoms, a doctor may see you in the office or refer you to a hospital emergency department for immediate evaluation and testing. If doctors suspect TSS, they will probably start intravenous (IV) fluids and antibiotics as soon as possible. They may take a sample from the suspected site of the infection, such as the skin, nose, or vagina, to check it for TSS. They may also take a blood sample. Other blood tests can help monitor how various organs like the kidneys are working and check for other diseases that may be causing the symptoms. Medical staff will remove tampons, contraceptive devices, or wound packing; clean any wounds; and, if there is a pocket of infection (an abscess), a doctor may need to drain pus from the infected area. People with TSS typically need to stay in the hospital, often in the intensive care unit (ICU), for several days to closely monitor blood pressure, respiratory status, and to look for signs of other problems, such as organ damage. TSS is a very rare illness. Although it can be fatal, if recognized and treated promptly it is usually curable. When to Call the Doctor Call your doctor immediately if your child has any signs or symptoms of toxic shock syndrome. Once you realize that something is wrong, it's important to get medical attention right away. The sooner your child gets treatment, the better. Reviewed by: Larissa Hirsch, MD Date reviewed: January 2011 Note: All information on KidsHealth ® is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.  © 1995-2011 The Nemours Foundation. All rights reserved.

Learning outcome Essay

1.1 explain own role and responsibilities and boundaries of own role as a teacher . Write a essay explain the your role and responsibilities including the limits of your teaching role. Word limited (200) 1.2 Identify key aspects of relevant current legislative requirements and codes of practice within a specific context -The student will write a essay explaining the NEW STANDARDS FOR TEACHERS AND TRAINERS. Explaining the new standards expected, including details of Health and Safety. – Make a list of location where you can research changes to your subject topic including details of location and the method of research. 1.3 identify other points of referral available to meet the potential needs of students -Draw a mind map for your preferred learning style and include it within your portfolio. 1.4 identify issues of equality and diversity and ways to promote inclusion -Define equality and diversity. -What does the term inclusive mean? (100 words) – Place copies of equal opportunities policies from a number of companies if your company does not have any. -Write a short essay explaining the importance to address the issues of qualify , diversity and inclusion within your training area. (200 word) 1.5 Explain the need of record keeping. Write a reflective piece explaining how you feel about keeping paper work and record keeping. (200) 2.0 understand appropriate teaching and learning approaches in the specialist area. 2.1 Identify and demonstrate relevant approaches for a specialist teaching area. -Write a brief essay explaining the approaches for a specialist teaching area. (200) 2.2 Explain ways to embed elements of functional skills in the specialist area. -With reference to an experience teacher you have previously observed in your specialist area. Explain how your teacher can keep up to date with their teaching practice in their specialist teaching area? How can your teaching incorporate communication and numeracy? 2.3 Justify the selection of teaching and learning approaches for a specialist session. in reflective piece explain a teaching session that you have delivered and the reason you have used a teaching approached. If you are not teaching currently, explain a teaching approach that you have seen for a spe cific session. 3.0 Demonstrate session planning skills. 3.1 Plan a teaching and learning session which meets the needs of individual students. -complete a full teaching plan for the micro teaching session. (presentation) 3.2 Justify selection of resources for a specific session. -Write a brief essay of (100) explaining the reason for the use of specific resources within your teaching session. 4 Understand how to deliver inclusive sessions which motivate students. 4.1 Explain ways to establish ground rules with students which underpin appropriate behavior and respect for others. Write a brief statement explaining methods of establishing clear ground rules . Give a examples of a ground rules list. 4.2 use a range of appropriate and effective teaching and learning approaches to engage and motivate students. Feedback sheets for other students 4.3 Explain and demonstrate good practice in give feedback Complete a essay explaining good practice and examples of bad practice. 4.4 Communicate appropriately and effectively with students. – copy of the feedback from lead instructions and internal Verifier. 4.5 Reflect on and evaluate the effectiveness of own teaching. Complete a reflection on the effective of the teaching method used and the ways you can improve your teaching practices. 5 understand the use of different assessment methods and the need of record keeping. 5.1 Identify different assessment methods -Write a reflection piece on the type of assessment you have experienced during your training time and school experience and the methods that have been effective and ineffective. (200 words) 5.2 Explain the use of assessment methods in different contexts, including reference to initial assessment. -Write a essay explaining the use of assessment methods and the different times you would use this method including details of initial assessment prior to starting a course. Including details of the types of assessment that are suitable for different areas. How can you use this assessment techniques be used to assessment learner progress. 5.3 Explain the need for record keeping in relation to assessment. -Briefly explain the need for record keeping due to the fact and relationship of the awarding bodies and the requirement of tractability of all document and processes.

It Is Not the Power but Fear of Loosing

â€Å"It is not power that corrupts but fear. Fear of losing power corrupts those who wield it and fear of scourge of power corrupts those who are subject to it†. (Aung San Suu Kyi’s speech on Freedom from Fear) â€Å"Power has only one duty –to secure the social welfare of the people† Disraeli Benjamin. However, the reality is somewhat different. History has led us to conclusions where those in power dominated over the weaker ones and used their supremacy to carry out immoral actions.Keeping such views under consideration, the norm that power, the authority to rule over and influence a group, tends to corrupt an individual as power brings an individual closer to his desires and grants him unquestionable authority. What is of more significance in corrupting a person is the fear of losing the power, the influence that one holds because fear takes away the ability to discriminate between right and wrong which results in immorality of actions.Humans act close to the theory of opportunism, and are motivated by self-interests without considering the values of their actions. Therefore, it is obvious that when one attains power, the person is attracted towards material necessities since being in power brings a person, closer to the fulfillment of his desires. The influence of being powerful allows people to manipulate the circumstances to suit their own needs. It is important to relate to William Jefferson in this scenario. W.Jefferson is a former American congressman who has been included in CREW’S report 2006 (Citizens for Responsibility and Ethics in Washington  (CREW) is a  nonprofit 501(c)(3) organization  that describes itself as â€Å"dedicated to promoting ethics and accountability in government and public life by targeting government officials – regardless of party affiliation – who sacrifice the common good to special interests) as being a corrupt politician. Jefferson has been accused for getting invol ved in attaining financial benefits through illegal means.For instance, Jefferson accepted bribes from multiple firms in exchange, introduced the firm to Congressmen and other business officials and used his influence as a member of congress to support those firms in their corporate goals. The bribe received was used to finance Jefferson family business. However, members of the congress as Jefferson may fear the time mandate since they are appointed for a definite period of time after which they might not remain in power.Such a fear makes an individual to think about would the person have enough with themselves once they do not hold power to live a good life. Thus, a person based on the concept of opportunism, would try to make as much wealth as possible within the time span, keeping in consideration that once out of power, the opportunity to accumulate wealth would no longer be available. The word â€Å"power† is often interpreted in terms of a person, having unquestionable authority. The person who holds power may not be answerable to anyone and therefore may enjoy supremacy.Such individual creates a cult of personality and thus earn themselves, honorable titles to further exaggerate their influence. Within this notion of supremacy and unquestionable authority, individuals tend to waiver towards the path of corruption in order to maintain their influence. There are countless examples where leaders such as Stalin have been criticized for killing thousands of innocent people and pursuing other actions that by no means justify themselves. Stalin ruled as a dictator, with absolute power.Was it the unquestionable authority acting behind the misdeeds of Stalin? What is important here to consider is the force acting behind Stalin, the force which historians titled as insecurity? People had started to question his authority and showed criticism towards his five years plan that was developed to enhance economic potential. Further, members from his own party st arted to criticize Stalin’s leadership. Considering the rising oppositions, Stalin passed a law which levied a death penalty on anyone who was found plotting against the government.This law was just the beginning of the great purges that Stalin later carried out to secure his position. The purges include the trial of sixteen, trial of seventeen and trial of twenty one and the common element of all these trials was the execution of all the members who were rising against Stalin. The intensity of the fears he had developed turned clear with the assassination of Sergei Kirov. Sergei Kirov used to be a close supporter of Stalin and Stalin treated Kirov as his son.However, when Kirov refused to conform to Stalin’s authority, he was eliminated just as all the others before him. Later, a constitution, which reinforced his political position, was passed that was to prevent uprisings in the future. Although this allowed Stalin to regain his political strength but that came at t he expense of economic downfall, weakened army and loss of numerous lives. Thus, what seems to be the consequences of unquestionable authority in reality sneaks out of fear that developed in Stalin to counter his oppositions to reinforce his supremacy. To come under siege†¦. was the inevitable fate of power† Frank Herbert, Dune Messiah. However, when one fears of losing the authority and influence, such people are no more concerned of morality of their behavior, and all of their actions are directed towards securing the authoritative place. Fear is a very strong force which exists in nature of the living being. It can and does produce alternate behavioral phenomenon in not just the human kind but also across other kingdoms; certain kinds of female snake would eat their own eggs because of the fear of an attack.Lizards cut-off their own tails when a predator attacks to distract it while it escapes. These traits have been described by scientists as characteristics conferrin g an advantage and allowing them to survive. Man, nature’s most evolved product, obviously possesses a similar in-built survival instinct which has enabled it to dominate nature’s landscape since it came into existence especially with its enhanced and complex social ability. Imagine a situation in which a group of people is under attack. Would they hurt or kill the intruders or would they be nice to them? NO.They would definitely attack the intruders to protect their power and authority even at the expense of immorality found in their actions. This is genuinely supported by the incidents that occurred in Musharraf’s regime. The early years of his rule witnessed calmness in terms of law and order of the country. However, what became the turning point of his regime was the fear, he developed when the circumstances turned against him and his presidency came under threat after the Lal Mosque incident. His actions were no more bounded by constitutional laws and what mattered to him was the maintenance of power.The illegal deposition of chief justice of Pakistan and attacks on judiciary in which several protestors were tortured, contest for presidency while still holding the status of army chief in 2007 and attack on a channel’s headoffice are examples of incidents where, to maintain power, a leader as Musharraf did not remain concern whether his actions were justified or not. Apart from this, fear can result in alternate behavioral phenomenon as mentioned earlier in the text. This might result in a complete different response to a situation by an individual under certain circumstances.The historical event that took place in Egypt just before the birth of Moses is a demonstration of the same phenomenon. The pharaoh of Egypt feared losing his power at the hands of the growing number of Israelites. His fears aggravated when a group of astronomers informed the pharaoh that a male Israelite child would bear who would throw the pharaoh’ s kingdom. Keeping in consideration the patriarchal societies that have persisted for long, pharaoh ordered all the new born male children to be murdered. This was certainly not normal.In societies such as Egypt, where male dominated every sphere of life and where they were ranked far above women, it was the fear of losing his power that caused the pharaoh to act even against the conventions of the Egyptian society. In relation to the text, it is evident that corruption does not branch out of power itself. Rather it is the fear, the thought of losing the superiority and charisma that one has developed over time, which leads a person towards unjustifiable means to protect and maintain his authority.The struggle to maintain power out of the fear of losing it has led to disastrous consequences for the humanity over the years. What influential people need to consider now is that though a lot of damage has been done, it is time to consolidate. Accepting the temporary nature of power and carrying out the assigned responsibilities that the authoritative position endorse one with would allow the humanity to be protected against ill consequences. Work Cited â€Å"Benjamin Disraeli and the Two Nation Divide. †Ã‚  The Victorian Web: An Overview. Web. 14 Mar. 2012. http://www. victorianweb. org/authors/disraeli/diniejko3. tml Pakistan Weekly. â€Å"Musharraf Trial. †Ã‚  Project. Web. 14 Mar. 2012. http://musharraftrial. net/ Ariela Pelaia. â€Å"The Passover (Pesach)A  Story. †Ã‚  About. com Judaism. Web. 9 Mar. 2012. http://judaism. about. com/od/holidays/a/The-Passover-Pesach-Story. htm â€Å"Stalin's Russia. †Ã‚  ThinkQuest. Oracle Foundation. Web. 11 Mar. 2012. . John Simkin†The Great Purge. †Ã‚  Spartacus Educational. Web. 11 Mar. 2012. . Dr. Lawrence Britt†A  Fourteen Defining Characteristics Of Fascism.   A  Fourteen Defining Characteristics Of Fascism. Web. 06 Mar. 2012. ;http://www. rense. com/general37/char. htm;. â€Å"Hitler, Stalin and Macbeth. †Ã‚  Angelfire. com. Web. 06 Mar. 2012. ;http://www. angelfire. com/ma/totalitarianism/essay1. html;. Crew Org. â€Å"Beyond Delay. †Ã‚  Citizenforethics. org. Web. 13 Mar. 2012. ;http://www. citizensforethics. org/page/-/PDFs/Reports/Most%20;. Doug,†The Trouble WithA  Power. †Ã‚  Japan and Korea: Life, Language and Religion. Web. 14 Mar. 2012. ;http://japanlifeandreligion. com/2010/11/07/the-trouble-with-power/;.

Evaluating Arguments about consumerism Essay Example | Topics and Well Written Essays - 1000 words

Evaluating Arguments about consumerism - Essay Example The paper summarizes and analyzes the two essays that present viewpoints on consumer culture in America before evaluating their efficacy. In his essay ‘The Year Without Toilet Paper, Mr. Green analyzes the lives of three members of a family (Mr. Colin, his wife and two-year-old daughter Isabella who wears organic cotton diapers) during their one-year experimental lifestyle the named ‘No Impact. Green explains that the rule of this lifestyle keep changing though the necessary regulations include preparing and taking natural foods grown not more than a two hundred and fifty mile radius of Manhattan city. Additionally, Mr. Colins family shops for no other household goods apart from the said foods thereby producing no trash in the form of paper. The family has a home composter in which only organic and biodegradable waste is dumped and consumed by worms. The most intriguing part the familys No Impact lifestyle is the fact that no member of the family uses any form of carbon-fueled transportation (Penelope 1). Mr., Colin Beavan, who is a senior writer, decided to embark on the No Impact year after his agent discredited all other possible possibilities that would sell as a book. This is an implication that Mr. Colin was doing this not only for the hope that people will tread more lightly on the earths resources, but also for the popularity of the book he was about to write. He had to turn his family’s lifestyle upside down in order to conform to the rules and regulations of the No Impact year. As a matter of fact, the family embraced full environmentalism to an extent that a visitor would hesitate to visit the bathroom for fear of failing to get tissue paper in there; hence the title ‘The Year Without Toilet Paper’ (Penelope 1). Colin’s decision to transform the lifestyle of his family to a No Impact lifestyle was not just inspired by the urge to protect some sort of â€Å"pristine

You are starting a new business in British Columbia and you have 20 Research Paper

You are starting a new business in British Columbia and you have 20 employees and 15 different positions to run the opreation - Research Paper Example The metropolis has a business enabling environment and is often frequented by visitors all year round thus, a good business destination. Since this nature of business is more of a luxury, Princeton was ideal since most of its inhabitants are affluent according to a research conducted by Forbes in 2011. That notwithstanding, the town is a major tourist destination along the Canadian coastline hence likely to be frequented by foreigners who may be likely to be interested with the services that we offer (Sims, 2007). The competitive edge of Rozalo health spa and salon is centred among the following; team of dedicated staff, services that we offer, our strategic location and finally our client centred business strategy. The twenty highly qualified men and women who form the workforce for Rozalo health spa have the pre-requisite skills and expertise to perform their duties effectively to guarantee high degree of customer satisfaction, thus branding our firm as a premier outlet in giving quality and distinguished services in Princeton. The services that we offer are also another element in our competitive edge, after conducting a dull feasibility study in Princeton and its environs we realized all the existing health spas in the area literally offered similar services with minimal specialization. Having identified that market niche our firm decided to venture into a few specialized services which would be customer made to fit individual client needs and preferences. Thus, any customer visiting our premises will leave clients satisfied that all their expectations have been accomplished. That notwithstanding our business premise is strategical with proximity to beach hotels hence providing easy access to clients on vacation to pop in for specialized services while they are relaxing. Finally, the business strategy of Rozalo health spa as a firm is client centred. This means all the

Why Students drop off from School Annotated Bibliography

Why Students drop off from School - Annotated Bibliography Example This book revolves around the issue that how the behavior of a student can be the reason why he/she is not committed to school and doesn’t pay attention in class. This unserious and lazy attitude can result to bad grades, punishments which can affect the confidence of one individual. They start disliking everything about the class and ultimately even the lessons taught in them. Students start to bunk class, get absent frequently, forget to do their homework, projects etc. which results to a bad report. If the student fails, then he/she has to repeat the grade. That student has to go through the same classes another year, which doesn’t bring about a difference in his/her character again. Like the book says; â€Å"This further bores the student (p15).† The book tells that after numerous research, the number one reason students gave as to why they drop out school is because of lack of connection to the school, an observation saying that school is boring. They feel u nmotivated, academic requirements and personal situations discourage the student from doing well at school. Another thing noticed was that these students hang out with people who are also not interested in school at all, bunk classes and just want to have fun. This non-serious attitude of their group makes students think it’s cool or fun to skip school and not pay attention in class. The book explains that lack of communication between students, parents and teachers is main reason behind drop=off and effective communication could resolve this issue. The author believe that â€Å"our student would be achieving more, more of them would be graduating and they would be better prepared for college or careers (p6)† Judith L. Meece, Jacquelynne S. Eccles. Handbook of research on Schools, schooling and human development. London: Routledge, 2012. Print The study in this book informs that feeling unmotivated or uninspired to work hard was a major factor in the drop outs’ restlessness with school. In focus groups, the teenagers said how school was uninteresting, uninspiring, and irrelevant and that they didn’t learn anything. The academic requirements were also very high; too much homework and work load worried these students which made them lose interest. Some corny students take every word of the teacher, personally sometimes, which builds hatred towards the school and everything about it. The book appears very

Hotel Restaurant Management Research Paper Example | Topics and Well Written Essays - 5000 words

Hotel Restaurant Management - Research Paper Example Marketing is often a very important part of restaurant management in a hotel environment, as it must become possible to persuade customers of many different lifestyles and backgrounds to choose the in-house restaurant over other external competition. As a manager, it is more than merely ensuring that productivity is high and employee responsibilities are met properly, it is a complicated process that requires ongoing dedication toward building a positive image for the organization in the eyes of customers, employees, and those in higher levels of executive authority. This paper describes several of the different activities that hotel restaurant managers undertake in their roles of leadership, showing how the external environment is strongly linked to the internal environment in order to make every aspect of the restaurant superior to competing food organizations. In addition, the relationship between the manager as a human resources leader and a tangible, cost-focused manager are des cribed. A diverse global travel agency affiliated with AAA Travel, Insight Premium Escorted Vacations, offers, â€Å"great vacations are measured in moments, not miles† (IPEV, 2007, p.10). This statement essentially attempts to offer that regardless of the distance of origin for the travelling consumer, they will remember their experience by their direct contact with those in the hospitality industry and how they perceive quality in each interaction with hotel staff and other in-house representatives. Hotel restaurant managers are exposed to a large volume of different clients who each have different goals for satisfying their vacation or other travel needs. Many of these consumers come from international locations, with widely different socio-economic and cultural backgrounds. Some of these clients, depending on the cost and reputation of

What do you feel is an appropriate balance between being successful Essay

What do you feel is an appropriate balance between being successful financially and the need to serve others by giving back - Essay Example Being successful financially is really a huge achievement but fixing an aim to only spend that money on your self, is that a big deal, a genuine feat? There is not a single way to create wealth and enlarge it, there is a huge literature concerning this. In fact there are countless people in this world who have no real ideas about their fortunes, but the ones who remember to give back to the community, they are not so very common. There is nothing like donating a chunk out of that huge pie to someone dying of hunger. Only a little generosity is required on part of all of us and a miraculous change can be produced in no time. That is my perspective when talking about what I plan to do with my wealth. Be it a small team or a big conglomerate, being successful economically and financially needs social responsiveness to be keenly observed. This is the demand of the present global economy. Taking care about who actually needs to be helped out is another big issue. One’s hard-earned fortune should carefully be devoted to those who intend to use that money in order to better their situations. The point is, if the process of ‘giving back’ is only applicable when one has finally established a stable business or if it is a life-long process applicable at any point? I think this is not just about donating a few dollars, giving back can also be about engaging oneself in useful volunteer work. In fact taking time out and making some destitute old man living in some old home, feel that he is not all alone in the world and bringing a smile to his face, that is also about giving back. One cannot limit oneself to giving back by the aid of some dollars, since it is also about whether one can bring any real change in the life of deserving people that can make them live again. Self-consciousness is the right motive for creating a positive balance between being

Health Promotion Reflective Piece Essay Example | Topics and Well Written Essays - 500 words

Health Promotion Reflective Piece - Essay Example Space was restrictively limited. Healthcare equipments were unfavorably lacking. There was a shortage of volunteer staff, leading to my group’s burn-out possibilities. Time constraint reduced healthcare delivery quality. However, such limitations further honed my leadership skills. Further, the World Health Organization rightfully spearheads the global healthcare process. The organization ensures stopping any disorder. The same organization focuses on improving the global population’s health issues. The organization helps alleviate or reduce the world’s disability statistics. Global health transcends the other concerns of each member nation (Sines, 2009). Furthermore, public health correctly incorporates several intervention processes (Sines, 2009). Disease is prevented from escalating or erupting. The average person’s life expectancy is increase. My Kyrgyztan volunteer team’s limited time, equipment, and other resources did not deter our successful delivery of quality services to our assigned patients. My team effectively delivered timely intervention strategies by framing each patient’s problem or issue, gathering of relevant evidences and related intervention data (patients’ daily data tracking charts and corresponding reports), and implementing the best intervention procedures within the limited time constraints. Moreover, health care theories are important (Sines, 2009). For example, the social cognitive theory rightfully focuses on learning from other people through observations and lectures. The health belief model correctly centers on the using the patients’ beliefs and attitudes to predict the patients’ future healthcare behavior. Lastly, I applied the change theory correctly enhance delivery of healthcare services to my Kyrgyzstan patients. Further, I liked the program planning cycle. I keenly applied the planning cycle when assessing my Kyrgyzstan patients’ healthcare needs, including

The Future of Computer Applications in Biomedicine Annotated Bibliography

The Future of Computer Applications in Biomedicine - Annotated Bibliography Example The authors with reference to the New England Journal of Medicine predict that computer technologies may be used in future to examine the causes for the development of Parkinson’s and epilepsy and in prescribing possible medicine for treating such diseases. Tissue engineering is also another possible development that computer technology is likely to facilitate in the field of biomedical engineering. This article provides an explicit research on this topic given its resourcefulness on the information under investigation. Increasing technological development and integration has led to massive transformation of various sectors of economies that have great impacts on human life. Biomedicine is one sector of great significance that has undergone broad transformation fanned by the speedy advancement of computer based technology. Away from the traditional communication technologies, introduction of computers in biomedicine have led to the transformation of health care procedures and practices. Computers have been of great use in biomedicine especially for the purposes of storing patients’ records, diagnosis and in performing other health related activities (Hung and Joseph 120). Laboratory is one component of heath care facilities that makes great use of computers in testing diseases and complaints as well offering therapies to patients of various diseases. Looking from the past and current transformation in the field of biomedicine, it is focused that this field has a very bright future with compu ter technology that will work to improve and ease health care procedures. According to Hung and Joseph, the recent increase in use of internet is viewed to have significant impact in the future of biomedicine (120). The internet has been very instrumental in enabling the process of data sharing that involve images and other health related information used by health care professionals. Analyzing from the current capability of internet to interlink

The car crash Essay Example for Free

The car crash Essay Joni woke remembering that she still needed to get out of the car her last thought before shed fell unconscious, even though the bright lights stung her eyes her headache worse than before. She pushed her self up onto her elbows, groaning quietly at the pain that suddenly shot down her arm in response to this movement, though she couldnt tell whether they were cut or bruised. Trying to open her eyes Joni squinted at the bright strip lights directly above her. A strong antiseptic smell filled her nostrils causing a nauseous feeling to wash over her. A noise that sounded as though it was coming from far in the distance was beeping in a steady rhythm, sounded amplified against the otherwise still silence. Trying to look round the room Jonis eyesight, which was not yet adjusted to the bright light, saw that her surroundings consisted of mainly white. The dark shape of a man sitting by Jonis bed stood out against the whiteness of the room. The man wore casual clothes so he couldnt have been a doctor or nurse, and yet Joni didnt know who this man was or why he was visiting her. Ssshh, lie back down you need your rest now an unfamiliar voice told her, standing up from where he was sitting he looked tall leaning over Jonis bed. But she tried to answer being interrupted not only by the constant throbbing of her head but also the man continuing to speak. Deciding that lying down was a good suggestion Joni did as the man had told her, but was still fighting to keep her usually clear blue eyes open which felt red and sore. Im really sorry there was nothing that I could do, you drove straight into me before swerving off the edge of the road. I just wanted to stay with you at least until your family or someone came, so that you wouldnt be alone when you woke. The man told Joni in a low but concerned tone of voice. Joni relaxed realising that she was now safe in one of the hospital beds not too far from home. She recalled what had happened that had made her end up here. Jonis vision had blurred at the bright headlights approaching from the car  heading towards her. Outside the increasing rain splattered heavily on the roof of Jonis car to the same rhythm of her thumping head. It was only 11.30 when Joni had decided to leave the party early, feeling yet another headache coming on, the one that she was now suffering from. Joni hadnt had anything to drink, partly as she had wanted to drive home but also as she had been topped up with paracetamol for the past few weeks miserably trying to fight of the constant headaches though theyd had little affect. It was mid November; the wipers on Jonis old car, which her Dad had bought her only the year before to make do with until she could afford her own was having difficulty keeping the windscreen, clear of the heavy rain. The car ahead was getting closer and the lights getting brighter, it must now have been about 12.00, as Joni was driving down the sandy cliff edge road about 10 minuets from home. The road had been cut out of the dusty hillside in which Joni lived. The road itself was little more than a dusty track, turning quickly into mud as the rain beat down. One side of the road exceptionally dark with trees thickening into woodland the other a steep drop eventually ending in the distance with another small village embedded amongst the hills which could only be seen due to its thousands of glittering lights. The road didnt have any lights of its own Jonis own car lights and the lights from the car ahead were the only thing illuminating the dark road. Jonis eyes stung transfixed on the road ahead, her head still pounding somewhat worse than they were earlier and then Joni could remember nothing for what could have barely been a minuet. I must have blacked out she told the man in some sort of an explanation. The next thing that she could remember was colliding with the car that had been approaching, in her dazed state of mind Joni then tried to control the car from falling off the edge of the cliff. She felt the tumbling weight of the car, with her in it feeling like a metal ball inside a pinball machine,  only she was being thrown around inside the car. Then silence as the car suddenly sat still knowing that this could only mean that she had finally reached the bottom of the cliff she tried to host herself from the wreckage feeling a warm liquid trickling down her face which could only be blood she fell unconscious. I pulled you from the car as soon as I got down to the bottom of the cliff, it was a pretty steep climb, then called for an ambulance, I didnt think that you was still alive The man explained. Thank you Joni replied, looking at him for the first time noticing that he could be no more than 18. He had dark eyes brown or grey with longish dark which was ruffled and matted with mud and dry blood probably mine Joni thought, his face full of small cuts and bruises defined his boyish features. He shrugged shyly smiling It was nothing

Dark Chocolate Essay Example for Free

Dark Chocolate Essay (NaturalNews) Ongoing research shows that eating dark chocolate exerts beneficial effects throughout the whole body. High quality chocolate delivers disease-zapping antioxidants, lowers blood pressure and protects your heart and liver, all in one fell crunch. Chemistry Central Journal brings even more good news for chocolate lovers, stating that dark chocolate contains more flavanols and polyphenols than fruit juice. Cacao seeds are a Super Fruit providing nutritive value beyond that of their macronutrient composition, said Dr Debra Miller. Chocolate and Blood Pressure The important thing is that the antioxidants in dark chocolate can significantly reduce blood pressure in patients with hypertension. According to researchers from the University of Adelaide, flavanols promote vasodilation, which may consequently lower blood pressure. There have, however, been conflicting results as to the real-life effects of eating chocolate. Weve found that consumption can significantly, albeit modestly, reduce blood pressure for people with high blood pressure but not for people with normal blood pressure. added Dr Karin Ried, who is program manager and research fellow of the PHCRED (Primary Health Care Research Evaluation Development) program at The University of Adelaide. The analysis concluded that the pressure reduction caused by chocolate consumption was comparable to the effects of 30 minutes of daily physical activity. Chocolate and Cirrhosis There are also potential benefits for liver disease patients. Spanish scientists found that eating dark chocolate lowers blood pressure in the liver and reduces damage to the blood vessels of patients with cirrhosis. A study which was presented at the International Liver Congress 2010 divided 21 cirrhotic patients with end stage liver disease into two groups. The first group received liquid meal containing dark chocolate, while the participants in the second group were getting liquid meal with white chocolate devoid of anti-oxidant properties. As a result, the patients receiving dark chocolate experienced a noticeable reduction of post-prandial increase in blood pressure in the liver. one Square Is Enough. However, it is not necessary to eat huge quantities of chocolate in order to experience all the health benefits. In fact, just one small square a day may be enough to experience the health benefits chocolate is offering. A study performed in Germany that compared 19 357 individuals found that those who ate the most amount of chocolate (an average of 7. 5 grams a day) were at a 39% lower risk of developing a heart attack than people with the lowest (1. 7 grams) chocolate intakes. To put things into perspective, the six grams of difference are the equivalent of one small square of a typical 100g chocolate bar. Our hypothesis was that because chocolate appears to have a pronounced effect on blood pressure, therefore chocolate consumption would lower the risk of strokes and heart attacks, explains Dr Brian Buijsse from the German Institute of Human Nutrition, who led the research. Small amounts of chocolate may help to prevent heart disease, but only if it replaces other energy-dense food, such as snacks, in order to keep body weight stable.

Dcf Distributed Coordination Function Computer Science Essay

Dcf Distributed Coordination Function Computer Science Essay Fragmentation It is the process used in MAC IEEE 8021.11 to break ­ing apart a packet into smaller pieces. Fragmentation is process that dividing long frame to several shorter frame. Using this technology because the Wireless LANs have high bit error rates. The probability of losing frame is much higher for wireless links. The 802.11 uses fragmentation to reduce the frame error rate. The PCF is supporting sensitivity traffic and support some high priority application. Therefore the real time application data need to transmitted without any delay. The probability of lost frame is much higher for wireless links. Thats why fragmentation is used to Reduces amount of time medium is in use and Reduces probability of collisions. And there some pervious work has been done which related to our title, will be shown in next sections. Acknowledgment: Acknowledgments the patience and support of my family was the biggest help in the completion of this project. And would also like to acknowledge for my supervisor Mr.Manssor Ali and for module tutor Prof. Vallavarj, and module leader Mr. Vijay Krishna, for their guiding. Also, I would like to thank the project coordinator Ms. Pravenna , for encouraging me to complete this work and my study. Nomenclature MAC: Medium Access Control. DCF: Distributed Coordination Function. PCF: Point Coordination Function. AP: Access Point. BSS: Basic Service Set. IBSS: Independent Basic Service Set. ESS: Extend Service Set. RTS: Request To Send. CTS: Clear To Send. ACK: Acknowledgement. OSI: Open System Interconnection. LLC: Logical Link Control. HTTP: Hyper Text Transfer Protocol NAV: Network Allocation Vector. DSSS: Direct Sequence Spread Spectrum. Contents Page Contentsà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.. Page No Abstractà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦. i Acknowledgementà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ii Nomenclatureà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..iii Contents pageà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..iv List of figuresà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦v Chapter 1: Introductionà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦7 1.1) General Informationà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..7 1.2) Aim Of the projectà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦7 1.3) Project Objectiveà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..8 1.4) Honors challengesà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.8 Chapter 2: literature Review..9 Backgroundà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..9 IEEE MAC 802.11physical layerà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦10 what is Fragmentation.10 Why we are using this Technology.12 The advantages and disadvantages of fragmentation..12 Distributed Coordination function (DCF)13 Fragmentation Operation.14 Point Coordination function (PCF)à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..15 Analysis The earliest work in data fragmentation IEEE802.1116 Chapter 3 Literature Review analysis..19 solutions for all above problems.19 Future Work..20 Chapter 4 Research Problem.21 Chapter 5 Design and Experiment Setupà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..22 Chapter 6 Conclusionà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.23 Chapter 7 Referencesà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.25 List of figures Figure name Page No. Figure (1) Independent Basic Service Set(IBSS)à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ 11 Figure (2) Infrastructure Basic Service Set à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ 11 Figure (3) Fragmentation The RTS/CTS access methodà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦. 13 Figure( 4) MSDU divided into several MPDUà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ 14 Figure (5). Combination DCF PCF. 15 Figure (6) The effect of (polling overhead )on network throughput17 Figure (7),Effect of fragmentation. 18 Figure (8), WLAN Setup diagram in OPNETà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.. 22 Chapter 1 Introduction 1.1) Aim: Study on the effect data fragmentation on the performance of IEEE 802.11 wireless LAN under PCF mode.fragmentation used to increase reliability transmit frame by divide 802.11 frames into smaller pieces (fragments) that are sent separately to the destination. 1.2) The objectives in this paper will be as follows: 1)The first objective in this paper will be understand the Theory and different standards of IEEE 802.11. 2)To understand the what are structure of the wireless network 3)To evaluate and analyse the effect data fragmentation on the performance of IEEE 802.11 wireless LAN under PCF mode. )Selection for suitable simulation tool4 5)To design suitable WALN with appropriate settings 6)Study the critical evaluation of the result. 1.3) Honours challenge: Critical analysis and evaluation of the results. Experimental Investigation of existing work. 1.4) General Information: The motivation i select this project title , is because in my organization they are looking for wireless network technology ,which can provide such applications like for delivering traffic for real-time applications such as Voice and data . Therefore IEEE 802.11 under point coordinate function PCF can satisfy the requirement, we will see that later. wireless local area network (WLAN), make people on the move to communicate with anyone and anywhere at anytime Caledonian college is one best example which is providing wireless service inside the college camps which allows the student to share data and web brows. The IEEE 802.11 WLAN has two different type of method channel accessing ,the distributed coordination function (DCF) and point coordination function (PCF). DCF is based on the carrier sense multiple access with collision avoidance (CSMA/CA) mechanism, while PCF is based on using the polling technique. The DCF mode of operation consists of two techniques for packet transmission. In the default its operate as a two-way handshaking technique where a positive acknowledgment is transmitted by the receiver station. (Stallings, 2007) . Fragmentation It is the process of break ­ing apart a packet into smaller pieces. A source (wireless Network Interface Card or access point) uses for fragmentation is to divide 802.11 frames into smaller pieces (fragments) that are sent separately to the destination. The fragments are all marked in a way that allows the destination device to put them back together again after it gets all the fragments. 1.5)The some of earliest work in data fragmentation IEEE802.11: Dynamic Fragmentation Scheme fro Rate -Adaptive WLAN.[7] Improving the Aggregate Throughput of Access Points in IEEE802.11Wireless LANs[26]. Performance Analysis of Packetized Voice Transmission with PCF in IEEE802.11Wirelessnetwork.[27] Delay Analysis of IEEE 802.11 PCF MAC based Wireless vetworks.[28] Performance Evaluation of the IEEE 802.11 Wireless LAN Standards [6]. Performance Enhancement of Wireless Local Networks. [20] Chapter 2 Literature Review Before we will go in depth of our title on data fragmentation under PCF mode , we must understand The basic building block of the WLAN network in IEEE 802.11., And our first objective will be covered in this section. 2.1) Background: In this section we will be discussing about wireless local area network (WLAN), which make people on the move to communicate with anyone and anywhere at anytime Caledonian college is one best example which is providing wireless service inside the college camps which allows the student to share data and web brows ,but increasing demand on portable computer for example Laptops and increasing communication equipment, its has responsibility of increasing in wireless network service. As we know this technology is working under protocols to control the service between users. Each type of wireless data network operates on a specific set of radio frequencies. For example, most Wi-Fi networks operate in a special band of radio frequencies around 2.4 GHz that have been reserved in most parts of the world for unlicensed point-to-point spread spectrum radio services. Other Wi-Fi systems use a different unlicensed band around 5 GHz. (Ross , 2008) ) IEEE MAC 802.11physical layer are defined in three type:2.2 Direct sequence spread spectrum (DSSS):its operating in the 2.4 GHz band at data rate of 1Mbps and 2Mbps, the number of channels available depend on the bandwidth. Frequency hopping spread spectrum(FHSS): operating in 2.4GHz at data rates of 1Mbps and 2Mbps, the available channel range is 23 in japan,70in USA. Infrared : data rate is 1Mbps and 2Mbps operating at a wavelength between 850and 950 nm. For IEEE 802.11 there are different standards as we can see ,but my study will be based on IEEE 802.11:[4] à ¢Ã¢â€š ¬Ã‚ ¢ IEEE 802.11: Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) Medium Access Control (MAC), and 1 and 2 Mbps for DSSS, FHSS in 2.4 GHz band, and Infrared, ratified in 1997. à ¢Ã¢â€š ¬Ã‚ ¢ IEEE 802.11a: Works at 6, 9, 12, 18, 24, 36, 48 and 54 Mbps in 5GHz band, ratified in 1999. à ¢Ã¢â€š ¬Ã‚ ¢ IEEE 802.11b: Works at 5.5 and 11 Mbps in 2.4 GHz band, ratified in 1999. à ¢Ã¢â€š ¬Ã‚ ¢IEEE 802.11e: MAC enhancements for Quality of Service (QoS), work ongoing.( Stallings,2005) 2.3) There are four physical components standards for 802.11 network : Access point- Station- -Wireless Medium -Distribution System The basic structure block ,of the WLAN network is the 802.11 basic service set (BSS). A BSS defines a coverage area where all stations within the BSS connected. There are Two BSS network topologies: Independent BSS (IBSS) Networks Infrastructure BSS Networks The first one, In the independent BSS network stations, as it shown in figure(1) are communication directly with each other. Also its called the IBSS as ad-hoc network, used to communicate all station in infrastructure network together . An ad -hoc network operates from one station to another station immediately, without any help from other device, thats mean no need for permission to access. This operation is working by using the independent basic service set(IBSS) . Figure (1) :Independent Basic Service Set(IBSS) Second an Infrastructure Basic Service Set(BSS) as we can see in figure, (2) is a type of IEEE 802.11 network consists from stations and access point(AP), which are used to communicate all stations by (BSS).This will work when first station is sending the information to AP and than the AP forward this information to station which let the information pass to a wired node and the AP passes to fixed network. This available at (http://msdn.microsoft.com/en-us/library/ff556962(VS.85).aspx) Figure (2):Infrastructure Basic Service Set (http://msdn.microsoft.com/en- us/library/ff556962(VS.85).aspx) 1] what is Fragmentation? and 2] Why we are using this Technology? 2.4) what is Fragmentation? In this section we understand the Fragmentation It is the process of break ­ing apart a packet into smaller pieces. Fragmentation is process that dividing large frame into several shorter frame. Each fragment consists of a MAC Layer header and frame check sequence (FCS), and a fragment number representing its ordered to position within the frame. Because the source station transmits each fragment independently, the receiving station reply with separate acknowledgement for each fragment (Yuguang and Kwon,2003 ) . All fragments are generate with equal size at same time, and all fragments will not change until they are transmitted in both PCF and DCF. 2.5) Why we are using this Technology? Using this technology because the Wireless LANs have high bit error rates. The probability of lasing frame is much higher for wireless links. 802.11 uses fragmentation to reduce the frame error rate. 2.6)The advantages and disadvantages of fragmentation: Advantages : To reliability of data exchange between the stations. The uses fragmentation to reduce the frame error rate and fragmentation for larger sized packets improves . Disadvantage: fragmentation will increase the overhead. (Tamer Khatteb,2009) 2.7) Distributed Coordination function (DCF) In 802.11, DCF also provides an optional way of transmitting data frames that involve transmission of special short RTS and CTS frames to the transmission of actual data frame. As shown in Fig(.3) an RTS frame is transmitted by a station, which needs to transmit a packet. When the destination receives the RTS frame, it will transmit a CTS frame after SIFS interval immediately following the reception of the RTS frame. Figure(3) Fragmentation The RTS/CTS access method (Anon.,2003) The source station is allowed to transmit its packet only if it receives the CTS correctly. Note that all the other stations are capable of updating the NAVs based on the RTS from the source station and the CTS from the destination station, which helps to combat the hidden terminal problems In fact, a station able to receive the CTS frames correctly, can avoid collisions even when it is unable to sense the data transmissions from the source station. If a collision occurs with two or more RTS frames, much less bandwidth is wasted when compared with the situations where larger data frames in collision.(Haitao ,et al.,2002) 2.8) The Fragmentation operation: A 802.11 data link layer is divided in two sub layers Logical Link Control (LLC) and Media Access Control(MAC). In 802.11, a MAC service data unit (MSDU) could be divided into a sequence of smaller MAC protocol data unit (MPDUs) as it (shown in figure 4). Fragmentation creates MPDUs smaller than the original MSDU length to increase the reliability, by increasing the probability of successful transmission of the MSDU in cases where channel characteristics limit reception reliability for longer frames. Fragmentation is able at each immediate transmitter. The process of combine MPDUs into a single MSDU is called as defragmentation . Defragmentation is adept at each immediate destination Only MPDUs with a unicast receiver address will be fragmented. Broadcast multicast frames shall not be fragmented even if their length exceeds a Fragmentation Threshold When a directed MSDU is received from the LLC with a length greater than a Fragmentation Threshold the MSDU shall be fragmented. The MSDU is divided into MPDUs. Each fragment is a frame no larger than a Fragmentation Threshold. (Yuguang and Kwon,2003 ). Figure( 4) MSDU divided into several MPDU. (Yuguang and Kwon,2003 ). ) Point Coordination function (PCF):2.9 PCF is working in combination with DCF as it shown in figure (5). PCF works suitable for high traffic load, In PCF, the AP acts in the role of the point coordinator, and it controls the medium access, If point coordinator hears there is no traffic after PIFS time gap, it sends out beacon frame Field to indicate length of time that PCF (polling) will be used instead of DCF (contention) during this time.(Stalling,2008) receiving stations must stop transmission for that amount of time The period during which PCF operates is called the contention-free period (CFP). Before the CFP begins, the AP operates under DCF, but it makes use of the priority inter-frame space (PIFS) to take hold the medium, and then sends out a beacon packet containing the duration of the CFP.(Stalling,2008) Figure (5). combination DCF PCF .(Stalling,2008) The fragmentation operation in PCF is same as DCF,but in PCF conation free period making different ,but because the DCF working with Contention period (CP) and PCF working with Contention free period(CFP) . (Yuguang Kwon,2003 ). There are some limitations on PCF which directly effetely the fragmentation, one of these limitation is the binary exponential back off , the frame need to wait even the medium is free ,because the binary exponential back off will double the random number from 15 to 1023 till the medium will be free, so this can effect the retransmit the frame in fragmentation . Other limitation in PCF has been designed to support time-limited for poor QoS performance. In particular the central pooling scheme is inefficient and complex which causes fall of the performance of PCF high-priority traffic under load, when a free station is allowed to send a frame of length between 0 and 2346 bytes, it introduce the difference of transmission time. (Dillip.2006). 2.1.0)Analysis The earliest work in data fragmentation IEEE802.11: In this section we will analysis ,In this paper(Abhishek,2003) we can analysis that polling in PCF causes overhead . In PCF, point coordinator (PC )is a central coordinator that schedules channel access for all other polling able stations in CFP. PC maintains list of poll able nodes in BSS. At beginning of CFP it polls all stations in Round Robin fashion. Nodes receiving poll respond back, either by transmitting data or there is no data frame. If station has no pending data, then it sends no frame. If station fails to do either then its result in polling time out at PC and PC resumes polling. When most stations have pending data, in order polling provide to ordered channel access and this can reduces collisions. But when few stations have pending data and rest are silent, this polling operation becomes major overhead, It adds unnecessary delay for stations with data, due to unsuccessful poll attempts for stations, with no pending data. For this reason resulting in throughput decreasi ng. Form the figure(6) we compares the overall throughput of network with 32 and 64 nodes having 16 nodes that have data to transmit. We can analysis that Effect of polling overhead is clearly visible(Abhishek,2003) Figure 6: the effect of (polling overhead )on network throughput From this paper, we can find the solution for pervious paper (Abhishek ,2003),by analysis that the overhead in PCF fragmentation is high ,so instead of allowing the transmission of multiple packets with a high data rate ,its possible to make MPDU large size to reduce the overheads caused by multiple packets transmission when channel condition is good. In Literature Review analysis we can describe it more clear(Yuguang and Kwon,2003 ). As we understand from this paper, that voice packets transmitted by use of PCF mode ,According to our analysis, PCF mode can well support packetized voice transmission using echo canceller fragmentation ,when the load are fragmented into small packets ,large fragment size such as 2000 or 2304 bits dose favour to voice traffic at the available bandwidth for data transmission.(Xiyan,al.,2003) In this paper ,we can analysis that, they propose a new rate adaptive MAC protocol with adynamic fragmentation. The major advance is the use of multiple fragmentation thresholds, for different rates to generate a new fragment from (remaining) MSDU only after the rate for next transmission is selected. With this scheme, the nodes with good channels can transmit more data than the ones with bad channel.( Byung,al.,2005) In this paper ,several methods been used to improve wireless network performance ,the result indicate as we can see in the figure (7),that the effect of fragmentation threshold can increase throughput and improve the wireless network performance, but how, the answer is when the bit error rate selected to be and the fragmentation threshold to be 256 bytes or 512 bytes, the result show that there is no any major effect on the network performance.(Walid Ajlouni,2006) figure (7),Effect of fragmentation, ( Walid Naim,2006) This paper ,proposes an adaptive control algorithm to tune the performance of IEEE802.11wireless LANs, so that traffic demands with different characteristics will be handled mostly by the MAC protocol that fits them. The algorithm aims is control the percentage of CFP duration within a super frame by measuring the throughput in PCF mode.(James,al.,2003) Chapter 3 Literature Review analysis T In this section we will be analysis ( 3.1 he out come from literature Review analysis: -Fragmentation It is the process of break ­ing apart a packet into smaller pieces. Fragmentation is process that dividing long frame to several shorter frame, Each fragment consists of a MAC Layer header, frame check sequence (FCS), and a fragment number indicating its ordered position within the frame. (Yuguang Kwon,2003 ). -The main reason we are using fragmentation is because the Wireless LANs have high bit error rates. -The period during which PCF operates is called the contention-free period (CFP). When most stations have pending data, in order polling provide ordered channel access and reduces collisions. But when few stations have pending data and rest are silent, this polling mechanism becomes major overhead, It adds unnecessary delay for stations . There are some limitations on PCF which directly effetely the fragmentation, one of these limitation is the binary exponential back off , the frame need to wait even the medium is free ,because the binary exponential back off will double the random number from 15 to 1023 till the medium will be free, so this can effect the retransmit the frame in fragmentation .(Class lecture ,Simulation Network Multimedia) 3.2 ) What will be solutions for Some Of above problems: 1) When there will be high overhead in PCF fragmentation is, so instead of allowing the transmission of multiple packets with a high data rate ,its possible to make MPDU large size to reduce the overheads caused by multiple packets transmission when channel condition is good. 2) when the bit error rate selected to be or the fragmentation threshold to be 16 bytes or 256 bytes, the result show that there is no any major effect on the network performance, so this maybe will be one of in our design and experiment we will select the above bit rat error than simulated it and observe the result.( Walid Naim,2006) 3) We go for IEEE 802.11e which introduces new coordination function called as a Hybrid Coordination Function (HCF) that is only useful for QoS network. The HCF supports channel access mechanisms, Enhanced Distributed Channel two additional Access (EDCA) for contention-based and HCF Coordination Channel Access (HCCA) for contention-free. And this stander will solve all problem with Polling and CW, which effect on fragmentation in PCF. ) Future Work:3.3 During my research i found that there is new standard been developed in 2007 , it know as IEEE 802.11e. To the best of our knowledge, there is very little literature , that deals with polling overhead in PCF .Other People have mentioned the problem earlier and there also come with some proposed solution to deal with it. also that people have mention the importance of polling for providing QoS service in IEEE 802.11 WLAN. New upcoming standard for QoS, IEEE 802.11e its called HCF (Byung,al.,2005) Chapter 4 Research Problem As i mention earliest the reason of selecting the study of data fragmentation effect in IEEE 802.11 under PCF mode is , is because in my organization they are looking for wireless network technology ,which can provide such applications like for delivering traffic for real-time applications such as Voice and data. There are some limitations on PCF which directly effetely the fragmentation, one of these limitation is the binary exponential back off , the frame need to wait even the medium is free ,because the binary exponential back off will double the random number from 15 to 1023 till the medium will be free, so this can effect the retransmit the frame in fragmentation . There for i found that IEEE 802.11 under PCF mode ,will not satisfy my Chapter 5 Design and Experiment Setup In This section i will be doing simulation , by using OPNET software as we can see in figure (8) to design and evaluate the performance of the IEEE 802.11 MAC protocol for wireless LANs. The aim of the project is to study the effect of data fragmentation in IEEE802.11under PCF mode. The main objectives of this experiment is to Study the effect of data fragmentation in PCF by choosing different bit rate error and observe the major effect on the network, as we analysis that using low bit error rate ,and give fragmentation value 256 bytes or 512bytes ,the result must show that there will be will no effect on the data transmission or on network performance. We can also do measuring response time (seconds) for PCF with 256 fragmentation and fixed data rate 5.5Mbps, and for page response time (seconds) for PCF with 256 fragmentations with fixed data rate 11Mbps.Finaly Compare the result obtain. Figure 8: WLAN Setup diagram in OPNET Chapter 6 Conclusion During my working in this project I have identify the effect of data fragmentation in IEEE802.11 under PCF in wireless network. I come out that this standard will help me in my organization to be used in library office only. The probability of lost frame is much higher for wireless links. Thats why fragmentation is used to Reduces amount of time medium is in use and Reduces probability of collisions .The IEEE 802.11 WLAN has two different channel accessing mechanisms, namely, the distributed coordination function (DCF) and point coordination function (PCF). We understand that When most stations have pending data, sequential polling provide ordered channel access and reduces collisions. But when few stations have pending data and rest are silent, this polling mechanism becomes major overhead, It adds unnecessary delay for stations with data. Also we understand that when there will be high overhead in PCF fragmentation is, so instead of allowing the transmission of multiple packets with a high data rate ,its possible to make MPDU large size to reduce the overheads caused by multiple packets transmission when channel condition is good. Anew standard has been developed in 2007 , it know as IEEE 802.11e. which support QoS. and can solve polling overhead in PCF. The References Books : Stalling,W.William.,2008.Data and computer communications 8 ed published by Dorling Kindersly(India) Pvt,LTD 482, F.I.E Delhi, India. Stalling, W,Willim., 2008, Wirless communications Network second ed published by Asoke K. Ghosh (India) Delhi, India. E-Books: Ross, John.,2008. Book of Wireless : A Painless Guide to Wi-Fi and Broadband Wireless (2nd Edition). San Francisco, CA, USA: No Starch Press, Incorporated, p 15. Available at: http://site.ebrary.com/lib/caledonian/docDetail.action?docID=10218384p00 =a%20painless%20guide%20wi-fi%20broadband%20wireless%20(2nd%20edition). Journal Papers: Tamer, M Samir ,K .,2009.Performance Analysis of Wireless Local Area Networks ,WLANs A thesis submitted to the Faculty of Engineering at Cairo University in partial fulfillment of the requirement for the degree ofMASTER OF SCIENCE. Yoon Hougwon Kim Jeonge. ,2003. Data fragmentation scheme in IEEE 802.15.4 wilerlss sensor network, Department of computer Scinse and Engieenring , Korea Unifersity Dillip, K., 2006.Quality of Service Provisioning with modified IEEE 802.11 MAC Protocol, Department of Computer Science and Engineering National Institute of Technology Rourkela Rourkela-769 008, Orissa, India Byung,S, Younggoo, K. ,2003.Throughput Enhancement Through Dynamic Fragmentation in Wireless LANs ,Student Member, IEEE, Yuguang Fang, Senior Member, IEEE, Tan F. Wong, Senior Member, IEEE. Abhishek ,G. , 2003.Dynamic Adaption of DCF and PCF mode of IEEE 802.11 WLAN, School of Information Technology, Indian Institute of Technology, Bombay . Xiyan, M ,Tamio, S.,2003.,Performance Analysis of Packetized Voice Transmission with PCF in IEEE802.11Wirelessnetwork, Dept. of electronic Engineering .Tsinghu University ,Beijing ,China.2003. Shakil ,A.,2007. Effect of Fragmentation in WLAN Systems with Interference Problems. College of Information Technology University. [emailprotected] .UAE James X.Dong,S.,2004 Mustafa Ergen Improving the Aggregate Throughput of Access Points in IEEE 802.11 Wireless LANs, and Anuj Puri Department of Electrical Engineering Computer Science University of California at Berkeley. Ziouva E. and Antonakopoulos T.2003., Efficient Voice Communications over IEEE802.11 WLANs Using Improved PCF Procedures. Walid ,HNaim ,A.,2006 Performance Enhancement of Wireless Local Area Networks,Dept. of Computer Science,Amman Arab University for Graduate Studies,P 0 Box 2925, Amman 11821, Jordan. Web Page:URL http://msdn.microsoft.com/en-us/library/ff556962(VS.85).aspx

Incorporating Farmers Knowledge in International Rice Research Essay

Incorporating Farmers' Knowledge in International Rice Research The longevity of many cultures can be attributed to their adherence to tradition, specifically subsistence practices. More likely than not, trying to push modern technology into these cultures will only result in disaster. Such is the case with the Green Revolution and the rice situation Stephen Lansing covered in The Balinese. It simply does not seem logical to disrupt traditional practices that have supported a culture for so long. There is a reason certain practices have been around for so long and that is because they work the best for certain people in certain locations. Sam Fujisaka supports this notion which is the basis for his article "Incorporating Farmers' Knowledge in International Rice Research." Fujiska's article describes his research done examining traditional farming techniques of the Claveria people of the Southern Philippines, so that their methods of rice farming may be used to improve research of agriculture. This article sets a good example for researchers of more developed countries who study such indigenous cultures. Rather than trying to see which modern technology from the "outside world" will best help these cultures, Fujisaka attempts to learn from these cultures' traditional methods to help improve the farming industry. Fujisaka's study of rice farming in the Philippines is much like Lansing's study in Bali, in that both cultures rely heavily on rice farming and both cultures suffered much the same from the effects of the Green Revolution. Thus, finding what improvements need to be made and how, is an important task that could help many people. Fujisaka began exploring these improvements by interviewing local Clave... ...ys best for everyone. This is a point that is necessary for people (specifically anthropologists) to bring into the light when dealing with other cultures. Understanding as much as possible about a culture is essential before attempting to get involved with their lives and, as Fujisaka shows, before getting their lives involved in others. He concludes "that the knowledge of farmers can be used first to identify and prioritise research issues" (139), and considering the respect for these cultures with which he conducted his research, Fujisaka's study can be considered more sound than most. References Fujisaka, Sam. "Incorporating Farmers' Knowledge in International Rice Research." The Cultural Dimension of Development: IndigenousKnowledge Systems. Ed. Warren, D. Michael et al. 1995 124-139. Lansing, J. Stephen. The Balinese Fort Worth: Harcourt, 1995.

Comparing Shakespeare Julius Caesar, Ibsens A Dolls House, and Millers Death of a Salesman :: comparison compare contrast essays

Tragedy's Problem From Shakespeare' Julius Caesar to Henrik Ibsen's A Dolls House, problem plays have taken form in character, plot, and even setting.   It is not necessary for a problem play to be considered a problem play just because it was not written in the time period of when problem plays were formed.   Arthur Miller disproves this theory and successfully wrote a problem play in the modern time period; his play was Death of a Salesman.  Ã‚   The timely struggles that characters such as Willy Loman face, eventually lead to a major personal problem that, in this case, leads to death.   Problem plays deal directly with social and professional issues.   Death of a Salesman is a prime example of a character struggling with social and professional problems. Problem Plays Problem plays were first invented at the time of William Shakespeare.   His plays, including All's Well, Measure for Measure, and Hamlet, are under the category of "problem plays" (Schanzer, ix).   Many authors have written of Shakespeare and his "problem play."   F.S. Boas was one of these men.   He once wrote, "All these dramas introduce us into highly artificial societies, whose civilization is ripe unto rottenness...Thus throughout these plays we move along dim untrodden paths, and at the close our feeling is neither of simply joy nor pain" (Schanzer, 1).   An artificial society is exactly what is created in Miller's Death of a Salesman.   Problem plays suggest major personal, social, political or professional issues in which each problem is timely, realistic and a character experiences these situations in real places and the problems have real outcomes.   The idea of "real-ness" opens the door to problem plays.  Ã‚   Eager Unhappiness Miller deals with more than the simplicity of Willy Loman's eager unhappiness.   It deals ultimately with the so-called American Dream.   The extreme power of mankind to create an image of freedom and self-equality sets this play in motion.   One critic of the play, Craig Garrison, stated in an essay "The play makes, finally, no judgment on America, although Miller seems always on the verge of one, of telling us that America is a nightmare, a cause of and a home for tragedy" (Garrison, "The System").   Making America the nightmare that is the home for tragedy ultimately puts the American Dream to shame and makes the lives of people like Willy Loman a dream in itself.   Willy continually fantasizes about the farm in the west.

Charles Dickens Hard Times Essay -- Charles Dickens Hard Times Essays

Charles Dickens' Hard Times Many characters in the novel are victims of hard times as a result of many factors. These include the lack of money, the education system, the industrialisation in the area and the social injustices of the Victorian era. The novel is divided into three books: sowing, reaping and garnering. The names of these books have biblical references. ‘Ae ye sow, so shall ye reap’ New Testament This means that there are consequences to all your actions, this idea features strongly in the novel. In the first book ‘sowing’, the actions of the characters were described for example the pragmatic education system. In the second book ‘reaping’, the consequences of these actions are described, and in the third book ‘garnering’, the consequences are explored more, along with the final outcome of these events. In the novel, Mr Gradgrind causes and suffers from hard times. He is a very rigid character in addition to being ‘a man of fact and calculations’. He causes hard times for others, including his family, with his pragmatic education system. We discover his attitudes to schooling from the very first chapter when he says: ‘In this life, we want nothing but facts, sir; nothing but Facts’ This concept is based upon utilitarianism. This is the idea that nothing except useful and practical things are wanted in life, and this causes many of Dickens’ characters hard times. They thought these concepts would provide the greatest good for the greatest number of people but it only benefited the rich, the poor sill suffered. He tries to inflict this system onto Sissy but he ends up learning a lesson from her. Towards the end of the novel he realises that he has not given his children what the... ...e goes on to become a very famous author who was very critical of lives, industrialisation and money; all of these are explored in hard times. Finally, Dickens’ experiences as a child came out in a convincing portrayal of what was wrong with the Victorian society. He was a critic to his time and from his novels we can learn a great deal about the Victorian era. Many of the characters in the novel experience hard times as a result of many factors. Stephen Blackpool is the innocent victim in the novel; he suffers greatly through no fault of his own. He is kind and trustworthy yet he is abused. Other characters such as Mrs Sparsit and Bitzer enjoy causing hard times for others. Some suffer more than others; but Dickens uses his characters to explore the hard times of the era. In conclusion, many of Dickens’ characters suffer as a result of numerous causes.

American Imperialism and Early Progressives Essay

The issues America had with other countries all revolved around things like that. There was the Louisiana Purchase. There was the Mexican-American War. There was the â€Å"54-40 or Fight† crisis involving England and the Oregon Territory. Beginning with the Spanish-American War, the US turned towards expanding its power and having more of an impact on the international scene. The US then did things like taking and running the Philippines. It pushed for the â€Å"Open Door† in China. The war represented the first major military engagement for the United States borders since the Mexican-American War and led to a desire of United States interests throughout the Caribbean and into the western Pacific region . The war’s outcome led to dramatic increases in the United States navy budget and U. S military involvement in the Philippines, resulting in a three-year war. The Spanish-American War created policies promoting overseas investments and expansion, later referred to as â€Å"dollar diplomacy† under President Taft. Before that, this expanded policy could be seen in the Open Door policy regarding China. It could also be seen in President Theodore Roosevelt’s engineering a revolt in Panama against the Colombian government and then negotiating for the Panama Canal Zone and construction of the Panama Canal. 2) Explain how the following individuals responded to the economic and social problems created by the industrialization during the late nineteenth and early twentieth centuries: Jane Addams, Andrew Carnegie, Samuel Gompers, Upton Sinclair Thesis: Industrialization may have created a dramatic increase in wealth but brought along social and economic problems, Andrew Carnegie responded to these problems with the gospel of wealth, Sinclair attacked corruption in industry’s, Jane Addams with Hull Houses and movements for women and Samuel Gompers with the AF of L. Addams focused on poverty, low wages, poor conditions and the need to assimilate immigrants. Her goal was to help with the poverty and bad lives of of urban life. She established a settlement house, Hull House, in Chicago in 1889. 00 settlement houses were established across America because of her. She advocated the regulatory movement for slums and factories that opposed child labor and sweatshops and advocated for the 8-hour working day for women. Carnegie did want to fix the issues of the emerging economy with his vertical integration of the steel industry. Carnegie built wealth around efficient monopolistic operations, vertical integration, lowest possi ble wages, exploitation of workers, and forbidding unions. He advocated the Gospel of Wealth, and economic survival of the fittest. Yet, Carnegie also held that excess wealth was a trust for communities, and he established the many Carnegie funded public libraries. Altogether he gave away over $150 million. Gompers organized unions into the American Federation of Labor; unions were independent but cooperated on bread and butter issues. He wanted higher wages, fewer working hours, business liability for injuries, mine safety laws, and leverage of skilled unions; the AFL coordinated strikes and boycotts. The AFL had 2 million members by 1904 but mostly omitted semi- and unskilled workers and women. Sinclair wrote the book The Jungle in 1906 and described meatpacking conditions, which made Theodore Roosevelt push for the 1906 Meat Inspection Act that established sanitary rules and inspections. Sinclair was an investigative muckraker focusing on abuse of workers. 3) How Successful were the progressive reforms during the period 1890 to 1915 with respect to the following: Industrial condition, Urban life, politics Progressive reform helped in seeing the creation of labor unions like The Knights of Labor and The American Federation of Labor. These unions pushed for higher pay and shorter work days for workers by attempting to organize the laborers. They achieved some of what they desired to but not all do to the advanced organization and quick methods of reacting of the companies. the reforms were successful in terms of industrial conditions. Examples of this: Creation of strong labor unions such as The Knights of Labor and the America along with Federation of Labor. These unions pushed for higher minimum wages and pay and shorter work days. Also, to rid of child labor. For Urban life improvements, i didnt develop an argument yet but i have these ideas that were successful: The Hull House, Public Education, Crime, Pollution and theres a whole lot more but im working on it now. Sorry but that’s all i have:( In addition, the Conserative reforms of Teddy Roosevelt and Taft. TR added the Yellow Stone National Park to a protective reserve. Taft built off of these ideas with more parks being made into reserves. How successful were progressive reforms during the period 1890-1915 with respect to TWO of the following? Industrial conditions; urban life; politics. The late 19th century and early 20th century were marked by a period of reforms known as Progressivism. During this time, leaders of Progressive reforms aimed to improve American lives by instigating changes that would influence politics and urban lifestyles. Progressivism generally helped improve the everyday life and reduced corruption within the nation’s legislations. During the Progressive Era, President Theodore Roosevelt adapted in 1904 what was known as the Square Deal program. This was the main program that outlined business relationships between the corporate leaders and the industrial workers and that fairness and equality would preside over the connection. However, in order to prevent a communistic society and maintain competition in the economy, Roosevelt did not eliminate all trusts. He declared that there were some â€Å"good† trusts, along with the bad ones. The â€Å"good† trusts were those that were free from corruption and would generally maintain a fair and just relationship between employer and employee. The program included the Sherman Antitrust Act, which demanded that the trusts be judged by the acts they have committed. This act successfully signaled the end of corrupt trusts, along with the passing of the Elkins Act. The Elkins Act prevented the rich and the well known to benefit and receive rebates on the railways. The Elkins Act forced the railroads to create an equal rate for people of all walks of life and it could not be subject to change. In the coal strike of 1902, hundreds of thousands of Americans refused to work in the mines without improvements to working conditions.

Isolation and Alienation in Sylvia Plath’s The Bell Jar Essay

In Sylvia Plath’s modern novel, The Bell Jar, the main character Esther isolates and alienates herself throughout the book because she mentally ill. Because her descent into a deep depression is slow and she leads a productive life when the reader first meets her, this descent seems rational to the reader in the beginning. Esther has an artsy soul. She is a writer and dreamer. When she does not make it into the writing program she is hoping for, she feels as though her life starts to lose purpose and we see her unwind. Esther is lucky enough to be spending a month in the summer in New York as a scholarship winning junior editor/ intern for a ladies magazine but she does not enjoy this experience as much as she feels she should. Esther spends her evenings out and about in the glamorous city trying to forget about Buddy Willard, a boy she dated in college who developed tuberculosis. Esther’s feelings of depression begin on this trip as she loses interest in both her work and social life and only worsen with time. Esther begins to realize her feelings of deep discontent are not normal â€Å"I knew something was wrong with me that summer, because all I could think about was the Rosenbergs and how stupid I’d been to buy all those uncomfortable, expensive clothes†¦and how all the little successes I’d totted up so happily at college fizzled to nothing†¦ along Madison Avenue.† (Plath, 1-2) Although Esther understands there is something abnormal about her emotions, it takes her a while to realize how deeply mentally ill she really is. Her peers are all happy and excited to be in New York pursuing their future careers but Esther is unable to share their enthusiasm in any of it. Esther begins avoiding her friends and social situations and retreats further into her own thoughts and emotions. Esther’s depression steadily worsens once she returns home. She is devastated when she is informed she has been rejected from the writing program she planned on attending and is left unsure about what to do with her life. â€Å"But when I took up my pen, my hand made big, jerky letters like those of a child, and the lines sloped down the page from left to right almost diagonally, as if they were loops of string lying on the paper, and someone had come along and blown them askew.† (Plath, 106) Esther starts noticing many odd changes with herself, such as a loss of writing talent and constant thoughts of suicide. She feels she is losing her identity as a writer and therefore her grip on reality. Esther attempts suicide more than once and is dragged to several psychiatrists and mental institutions before landing in a private institution in the capable hands of Dr. Nolan who helps her slowly ascend from her suffocating â€Å"bell jar.† This book gives the reader a look inside what it is like to be severely mentally ill. Esther avoids everyone including those who used to be her best friends and attempts suicide more than once. That is why alienation is the most outstanding theme in this novel.

What It Means to Be a Blackbelt

Ryan Cloninger Denver Tae Kwon Do Mr. Putnam November 8, 2009 What a Black Belt Means to Me When I was thirteen I started taking Tae Kwon Do. I wanted to learn how to fight and break boards. I have come a long way since my first Tae Kwon Do class. As a candidate for black belt rank, I now have a different perspective of Tae Kwon Do, and different motivation for attending each class. To me a black belt consist of displaying great character, becoming a leader, and reaching your goals, and understanding the history of Tae Kwon Do.To become a true black belt, you have to look back and remember the men who started Tae Kwon Do, and understand their history. Tae Kwon Do means the way of the fist and foot. In Tae Kwon Do you are empty handed. When empty handed you must use your hands and feet. In the early times Korean men used their hands and feet as weapons. Koreans used Tae Kwon Do for self-defense when invaders came to savage their village. Men died fighting to protect their loved ones a nd their homes. What once was a military form of fighting soon became a way of life for the Koreans.The history of Tae Kwon Do has taught me that becoming a black is not about what color material you receive. Tae Kwon Do black belts never quit. They work hard to achieve goals, even when the journey is difficult. I have learned to never retreat in life, and that victory is the goal. Becoming a black belt has always been a goal of mine. The respect and honor you gain from becoming a black belt is priceless. Knowing you worked hard for a black belt makes your accomplishment so much better. I have been taking Tae Kwon Do for over four years and am yet to have earned my black belt.The school I train under believes in working hard for the rank of black belt, and this can take a very long time. I believe the long road will make the destination that much more rewarding. Another goal I have is to attend college at Clemson University, after graduating high school. After college I hope to be a professional chef. My goals of going to college to become a chef have been with me ever since I can remember. Growing up around my grandparents who were always cooking got me interested in becoming a chef.Tae Kwon Do has taught me to stay in pursuit of this goal. In order to be the best college student and the best chef, I know I need to be a leader and not a follower. During the Tae Kwon Do summer camps I had a chance to practice my leadership skills. My instructor, Mr. Cloninger, allowed me to teach the Tae Kwon Do classes to work on and critique my leadership skills. Instructing the students really helped me correct my own mistakes in technique and forms. As I have grown through the ranks, my instructor has allowed me to instruct the classes.Instructing is another way of learning. If you cannot teach the material you truly do not understand it yourself. This is required to perfect your material, as I learned from personal experience. I believe my instructor, Mr. Cloninger, is an example of a great leader. He pushes me to my limit and beyond. He makes me a better person, better in the karate school, and in the community. Mr. Cloninger is dependable, hardworking, and possesses many great character qualities. Displaying good character is essential for being a great leader and a great black belt.Positive characteristics, such as respect for others, self-control, obedience, and humbleness, are the building blocks of a well-trained black belt. Respect is always important when training. Respect is earned. It is not simply given to you. You must work hard and be respectful to your instructor. Self-control is an important characteristic to have, not only in martial arts, but also in life. Self-control is harnessing your actions and emotions. When in training all emotions must leave the room. Your mind should be set on your material and goals.Self-control also applies in every day life, whether it is when you are driving down the road and some one cuts you off, or w hen your peers upset you at school. Obedience is another attribute a black belt must have. Whether it be listening to my parents or my instructor, I need to be able to listen and follow through when something is asked of me. Black belts are portrayed as people that can be trusted, doing what they are told and doing it the first time. Obedience comes easier when you have respect for others and self-control of your own wants and desires.A true black belt should be humbled in his achievement of his rank. Black belts should have respect for the art and not use their rank to show off, bully, or be intimidating. Black belts should not to be portrayed as cocky, arrogant or boastful. This is not being a good leader or representative of martial arts. I continually try to implement respect, self-control, obedience, and other positive characteristics into my life. These characteristics help me learn in school, train in Tae Kwon Do, and be a good member of my family.I am grateful and honored th at I was given the chance to test for my black belt. I received the best training from Mr. Putnam and Mr. Cloninger. These great leaders have taught me to stay strong and to work hard for my goals. If I receive the rank of black belt, one of my many goals will have been accomplished. My journey to becoming a black belt has taught me to display great character, build my leadership skills, reach my goals, and understand the meaning behind Tae Kwon Do. I look forward to continuing my Tae Kwon Do journey for many years to come.

Top Gun

Top Gun relationship to Dully Article Top Gun is a 1986 American action drama film directed by Tony Scott, and produced by Don Simpson and Jerry Bruckheimer. The movie was inspired by the article â€Å"Top Guns† (U. S. navy established an elite school for one percent of its pilots it purpose was to teach the lost art of aerial combat, also known as flight weapon school) written by Ehud Yonay for California magazine.The film starts stars such as Tom Cruise as a young naval aviator named Lieutenant Pete â€Å"Maverick† Mitchell; Anthony Edwards aka â€Å"Goose† as a Radar Intercept Officer, and Maverick best friend; Kelly McGillis as â€Å"Charley† as a civilian instructor in air combat and a lover of Maverick, and others. The movie Top Gun centers around Maverick (Tom Cruise), a hot-headed, troubled, egoist fighter pilot/navy pilot, and how he grows up as a man/person and as a better pilot with the help and influences from his past and his colleagues. In th is paper I will be examining the theory or studies given by Dr.Frank Dully, and relating it to the characters of the movie by identifying their personality traits of naval aviator described in the Dully Article â€Å"The Life Style Keys to Flight Deck Performance of the Naval Aviator. † As mentioned above, this movie portrait around the character Maverick. Who is a very skilled, smart, charming, and one of the best fighter pilots in the nation; but he also is cocky, hot-headed, aggressive, very controlling, emotional, mission-oriented naval aviator who characteristics changes throughout the movie.In the beginning of the film Maverick and his partner Goose are involved in a reconnaissance mission. While maneuvering Maverick and his partner Goose made a contact to enemy aircraft. With his skills and boldness he maneuvered to trail the enemies’ aircraft; while breaking all the rules of flying such as flying under 10000 altitudes, high-speed passes over 5 air controlled to wer, uses the illegal breaking maneuver to outsmart the enemy, performing unrealistic stunts even throughout the movie. This characteristic of Maverick shows that he is reckless, aggressive, and very controlling naval aviator.As Dully mentioned, the first ingredient of a naval aviator characteristic is being in control, and in this movie Maverick is very controlling, the one who make things happen. Dully also mentions that â€Å"oldest sons and oldest daughters comprise a remarkably large segment of this population, well in excess of their demographic one-out-of-three stature. These are the youngsters that initially set out to please that Very Important Parent, (usually Dad), in response to his requirements for excellence in many things. It becomes the mission of the first child to bring to the Very Important Parent a series of vicarious successes.Seizing the opportunity for recognition and a taste of success, the child usually applies himself diligently to the tasks thus assigned. † In this movie Mavericks is known as the only son, and his mission-orientation or goal/action was based on his father action and reputations. However his friends are trying to help him to be a team player and a healthier naval aviator. Another characteristic that is associated with Maverick personality traits described in the Dully article is the calculation of emotional distance. As mentioned in the article, there are three factors that shape our emotional views.First â€Å"occurs in the toddler years, the second plays out in early grammar school, and the third takes place late in his high school years. † For Maverick his emotional feeling or factors seemed like they were inherited from his dad actions. Another example that shows his emotional feeling was in the beginning of the movie when he disobeyed the leader to help one of his fellow pilots back to the carrier. This shows that he is not selfish, he cares for other and he is a team player in his way. Also his emo tional feeling come out when his losses his friend Goose.For instance, when he was trying to drop out of the top gun course; this could symbolize Maverick as a stressed or failing aviator. Lastly his emotions are seen with his relationship with Charlie. That he is a nice, caring and aggressive guy when it comes to Charlie. Another character that plays a huge part in this movie is Anthony Edwards aka â€Å"Goose,† a Radar Intercept Officer, and Maverick best friend. In his movie Goose would be described as the man who influences Maverick to change from a hot-headed, reckless fighter pilot to a well-mannered, responsible, team-player pilot.After Maverick passed by the control tower, Goose told him that his action will also endangered his own place at work, so to be careful. Goose personality traits are not really mentioned well in the movie; however he seems to have a good balance with Maverick to make a good naval aviator. Goose personality traits are that he is very likable, friendly, caring, funny, not controlling, a good husband and naval pilot. According to the Grid I would classify Goose as a 5, 5 pilot because he has come to adopt or adjust to the system and to the comfortable tempo thatMaverick lives in. The last character I will be describing, and who had a big influence on Mavericks well-being is Charlie. She is a highly-qualified instructor at the school and holds a degree in air combat. Throughout the movie she has different personality and behaviors. She too, is an ambiguous figure. She seems fairly masculinizing and controlling through her name. However she has an emotional affiliation with Maverick that she wants to keep private. She is also very aggressive, usually get what she wants.As Dully mentions, usually the oldest son the controlling and aggressive ends up with the same counter-part controlling and aggressive oldest daughter in this case it seems true. Although this movie could be a good description on what a healthy/good and bad na val aviator life might be. It has a Hollywood twist and a perfect ending which make it hard to conclude and study the life, personality, and attitude of naval pilots. But it shows the significant characteristic described by Dully.