How Do I Love They

A readers’s first guess at Elizabeth Barret Browning’s poem. â€Å"How I love thee† would be that it is a love poem. This assumption is correct as a love poem is a lyric, i. e. an expression of feelings, and thoughts by a speaker in a personal and subjective fashion. In this poem literary devices and language strongly used to assist the reader is the correct comprehension of the theme of the work. In this poem the theme is love. This theme is approached with a question, â€Å"How do I love thee? † This abrupt question is rhetorical. Let me count the ways,† The author is not going to literally count the number of ways that she loved this person, but she is attempting to define love, and her love for the other for the other person. The next few lines are descriptive. The author attempts and seemingly effectively explains the love that she feels. From the authors words readers can see that this love is real, and not an infactuation. Through out the poem Elizabeth uses examples to explain her love, she tries to symbolize her love with life happenings. I love they with the passion put to use In my old griefs. † At the conclusion of the poem Browning says â€Å"I shall love thee even better after death. † From the tone of this line it sounds as though she thinks that some how she has failed in her demonstration of love and promises to exhibition of her emotion greater after their death. Two of the literary devices used in this poem are point of view, and description. In this poem the point of view used is first person. This allows the reader to hear and feel the passion poem as directly and originally intended by the author. Through out the entire poem Browning is directly is directly telling her inner most feeling for another. It is not an observer telling how they think that she individual feels. The effective use of this literary device better helps reader’s relation to and interpretation of the poem. Another literary device used is description. This device is strongly used in the poem from line two onwards. Though the lady is seemingly unsuccessful in describing the love, description is still a major factor. † I love thee freely. As men strive for right. This description reveals that she loves him as strong as a person would struggle or push for his or her beliefs. In essense she is a martyr of her love for him. Language is another important element in the poem. Elizabeth’s skill with punctuation is this is evident though out her work. She has effectively used punctuation through out her poem to greatly aid the reader in their comprehending, â€Å"I love thee to the depth and breath and height My soul can reach, when feeling out of sight For the ends of being an ideal grace. The pause after reach is pertinent to the true meaning of the quote, a use of a period at that same spot would change the meaning of the poem to be the limits that her soul can reach at anytime due to any emotion. Whereas with the pause it reads the limits of her soul when she feels useless. Another example of punctuation is in the first line of the poem â€Å"How do I love thee? Let me count the ways. † The use of the question marks slightly throws the reader off. At this point the reader cannot know whether this is a rhetorical question. The opening line might seem to be and impossible or stupid attempt to define the concept of love, but the next sentences settles the mind, as readers see it’s an out loud thought which she answers. Conclusively Elizabeth Barrett Browning,s poem is an effective use of the literary devices point of view and theme, and also her language. These elements in the poem helps the reader to understand what could have easily became a complex piece of work.

Lincoln Electric Company Case Essay

After reviewing the case I feel that the main reason of Lincoln’s foreign operation dilemma was because of its unique corporate strategy, which was the similar strategy that made Lincoln so strong in the United States. Lincoln’s competitive advantage in the United States was based in its unique culture and incentive system (Anthony and Govindarajan, 2007). A corporate culture that emphasized open communication and trust began with its top management. Lincoln’s leaders used an approach that encouraged all employees to share their thoughts not only with their managers but also with the CEO (Anthony and Govindarajan, 2007). This corporate wide approach to management, encouraged by the company’s incentive system, created an exceptionally committed and skilled workforce. Lincoln thought that its management style and incentive system would work to regenerate the foreign operations performance by energizing and committing its workers (Anthony and Govindarajan, 20 07). But Lincoln did not realize was that its corporate culture had been created and confirmed for over almost a hundred year and took time to build such a successful corporate culture (Anthony and Govindarajan, 2007). By 1993, Hastings realized the mistakes they had made (Anthony and Govindarajan, 2007). The corporate culture of European countries would not be compatible with their programs. For example, German workers were highly skilled and Germans worked fewer hours a week than Lincoln’s U.S. workers did (Anthony and Govindarajan, 2007). The U.S. workers frequently worked overtime and usually on short notice, which helped to make the incentive system work successfully (Anthony and Govindarajan, 2007). German workers were not as productive as Lincoln’s U.S. workers (Anthony and Govindarajan, 2007). Donald Hastings began to become conscious of what the company was up against. For the first time Lincoln evaluated the projects that it was undertaking with the view of what th e company was facing and what it could actually accomplish (Anthony and Govindarajan, 2007). Lincoln Electric would have to cut back on almost all of the operations it had invested in just a few years prior. Lincoln was forced to begin restructuring plan for all of its foreign operations to go outside the  company to find innovative top management (Anthony and Govindarajan, 2007). In order to improve global operations, I recommend that Lincoln Electric must improve its company relations, its production systems, and its placement in the global community. Lincoln Electric should concentrate on developing and manufacturing inventive products. This action will help Lincoln Electric achieve a competitive advantage to its competitors. Furthermore, contracts should be set up with Lincoln’s supplier and buyers. By creating contracts with the suppliers, Lincoln can lessen material costs and price its products competitively. Additionally, I think that they should have partnerships with great buyers will help in the creation of new products, as well as securing a contractual agreement. Given that Lincoln Electric has gone beyond its experimental global expansion stage, it should carry on such opportunities in profitable and a cost-effective environment. Lincoln should attempt to only come into new markets when it has a firm partner that currently operates in the market. Lincoln’s incentive system should only be put into practice in operations where the workforce and its culture are compatible with their program. This case did alter my viewpoint regarding managing foreign operations. I think that in order to pursue business in another country you must have knowledge of the international markets or cultures. What may work in one country may not work in another country. I think that when deciding which countries to decide to expand in, that all factors regarding culture should be considered. Lincoln Electric Holdings has proven to be a successful, innovative company that holds a immense leadership position in its industry. References: Anthony, R. N., & Govindarajan, V. (2007). Management control systems (12th ed.). New York, NY: McGraw-Hill/Irwin.

Censorship: Friend or Foe?

While some will make the argument that it depends on the authority of a child, some children mature less quickly than others. There's no way of telling who can handle the material until it's too late. Censoring in the beginning is like a safety net to make sure nothing offensive is being said. On the other hand, a high school student should be mature enough to handle anything that is thrown their way. By the time they get to that age, they already know a good handful of the stuff that administrators are trying to censor.Offensive topics eke racism, sexual contact, rape, and homosexuality may be contained in the book being read, but In all reality, there is nothing more real to the book than there Is to a scary movie. President Obama said â€Å"censorship Includes teaching our children the truth about history and this country, which Is not currently done, since the education department Is a tool of the Liberal and their revolutions history to convert our country into communist societ y. Meaning censorship could be depriving children of the ability to learn about not only their country and government, as it seemingly being said here, but about the world and how it functions. As anyone could say, censorship is as easy a topic as politics or religion, there are so many different ways to look at it. In one hand there is the fact that some people are not mature enough to handle some of the points being made, and some of the things being said. While in the other hand, there is the fact that censoring a book of things that a child already knows is shielding them from something they have en before.In response to both opinions, children are all maturing at different rates, the way of knowing who can handle such harsh topics and Ideas is only In the minds of the children. Censorship Is not helping, nor depriving the children of today. It's Just a movement to try to protect the feelings of different beliefs. Censorship should be decided by the parents. As at C. J. H. , the children were given an option to read The Kite Runner: by Exhaled Houses, or Lord of the Flies: by William Gilding, leaving the anal option to the parents of the children by sending a permission slip home.

Morgan Motor Company and the Key Challenges Essay - 1

Morgan Motor Company and the Key Challenges - Essay Example Regarding this issue, it is noticed by Greve (1998, 59) that change within any modern firm should be considered to be ‘an outcome jointly determined by the motivation to change, opportunity to change, and capability to change’. One of the most difficult tasks when implementing change within a particular organization is to identify the areas of the firm’s operational activity that need to be reviewed and possibly restructured. The above assumption is also supported by Poole (1998, 45) who noticed that ‘when change is needed in an organization it is likely the culture or identity of the organization will be targeted for change; the transformed organization, whether it be minor (first-order change) or major (second-order change), will not be the same as its predecessor’. In other words, change within a particular organization is often related to conditions of work and the skills of employees (possible thought of replacement should be identified in the re levant research). Moreover, other operational weaknesses should be identified at this stage. The responsibility for the identification and the evaluation of the problem belongs to firm’s central strategic management unit (in the specific case of Peter and his son Charles). The current paper examines the advantages and the disadvantages of implementing a plan of change to Morgan Motor. Moreover, the changes already applied to the above firm are going to be examined thoroughly and criticized as of their effectiveness in the firm’s performance especially in the long term. Changes were necessary for Morgan Motor. The production had been limited to a specific number of cars on an annual basis while the systems used for this production could be characterized as inappropriate in terms of the level of production (cars prepared on an annual basis). The time required for the completion of the relevant initiative is also considered as significant. However, the firm’s leaders managed to appropriately improve operational activities in all firm’s sectors implementing the required plans (in terms of the firm’s targets in the long term). It could be stated here that ‘change is a constant in modern working life; no matter how managers and employees struggle to control their lives, change is forced on them, reinforcing the feeling of being a pawn in someone else's game; since change is inevitable, managers must work to give their staff a sense of control over changing situations’ (Rosenberg, 1993, 21). In the case of Morgan Motor, the firm’s leaders managed to face effectively the obstacles appeared during the efforts for the implementation of change policies. In the long term, their initiatives had been proved appropriate for the particular market aligning existed business strategies with the demands of the particular marketplace. Â   Â   Â  

Improvement of Wheel and Joint of Luggage Assignment

Improvement of Wheel and Joint of Luggage - Assignment Example This paper relates to the process of identifying the best materials for use in luggage wheels. Its aim is to investigate and propose alternative materials that can improve the durability of luggage wheels at competitive cost. Trends in Development of Wheeled Luggage Wheeled luggage is one of the innovations created to ease travel. Over the last one hundred years, there has been an increase in the number of people travelling across the world. This is because of technological breakthrough in aviation, sailing, and motor vehicle engineering. Travelers include students, tourists, and business executives. Wheeled luggage makes traveling very convenient. It makes it easy for travelers to tow their luggage easily without straining their backs. Today, there are various versions of wheeled luggage, which include duffel bags, carry-on bags, backpacks, and totes. They all aim at making travelling easier for people. Most of them have telescopic arms that allow travelers to tow the bag without be nding. The design of the luggage wheels is the weak link in the luggage design. Once the wheels are out of service, the luggage becomes cumbersome to carry. Most of them do not have features that allow travelers to carry them easily. The choice of material for the luggage wheels determines the degree of durability of the luggage. A well-designed luggage may become useless if its wheels break down regardless of the durability of the luggage. In this sense, the life of luggage depends on the durability of the wheels. Performance Specifications of Luggage Wheels There are three key conditions that luggage wheels need to meet in order to perform optimally. These are the ability to support the weight of the luggage, ability to handle torque and friction during motion, and the capacity to carry the full weigh of the luggage without collapsing. When the luggage is in motion, the entire weight of the luggage rests on the axles of the wheel. This means that the wheels require the capacity to support this weight without breaking. The popular models of the luggage have two wheels located axially. The design of the axle must take into account the forces acting in the wheels. Poor design or poor choice of material for the axle predisposes it to sagging. In this situation, the wheels can lose their alignment leading to increase in frictional forces leading to quicker wear and tear (Ashby and Jones 418). The second performance issue is that the wheel must be able to handle torque when the luggage is in motion. The specific requirement here is the capacity to retain rigidity (Ashby and Jones 419). The wheel must also handle the shear forces on the surface and body of the wheel without losing consistency. The third aspect that the wheel must handle satisfactorily is friction between the wheels and the axle. A poor design or choice of material for the wheel may lead to enlargement of the centre of the wheel. In summary, apart from environmental factors, a luggage wheel must mee t the following performance specifications. 1. Ability to support the entire weight of the luggage 2. Ability to withstand frictional forces at the axle 3. Ability to shear forces on t

The Fukushima Daiichi disaster and the future implications for Research Paper

The Fukushima Daiichi disaster and the future implications for building new nuclear power plants in the United States - Research Paper Example The calamity was observed to have taken place in the eastern coast, Tohoku in Japan. The severe tremors of the quake were experienced at Fukushima as well (American Nuclear Society, 2012). The above mentioned catastrophe was later found to have significantly affected the ‘nuclear power station’ or rather the nuclear plant that is situated at Fukushima Daiichi in Japan. This disaster was believed to have triggered the most far-reaching ejection of radioactivity in contrast to the Chernobyl mishap that took place in 1986. This particular radioactivity release was considered to be even shoddier than the case or disaster of Three Mile Island that took place in 1979 in the United States. However, the occurrence of Fukushima Daiichi was considered to differ from the stated incidents of Chernobyl and Three Mile Island as the devastation that occurred at Fukushima was learnt to be triggered owing to natural tragedies which was a massive earthquake chased by tsunami. The discharg e of the radioactive gases was regarded as a consequence of the natural disaster rather than any malfunction with regard to the equipments and even ruled out any chances of human faults. The tsunami was measured to have ruptured the systems that helped in providing backup power and which were required for the reason of cooling down the reactors that were present in the definite plant. The breakdowns of the backup systems as a result made a large number of those reactors go through hydrogen explosions, fuel melting and ultimately radioactive releases (Holt, Campbell, & Nikitin, 2012). The paper will intend to focus on the present situation of the mishap that occurred at Fukushima Daiichi along with providing an insight into the various policies or stands taken by the US after this incident. The Accident at Fukushima Daiichi in Japan The earthquake that took place in March, 2011 in the eastern coast of the island Honshu in Japan resulted in initiating a mechanical shutdown of around e leven nuclear plants out of fifty five. Majority of the shutdowns were found to have carried on without any kind of further events. However, the Fukushima and the Onagwa nuclear plants were found to be the ones that were closely located towards the epicenter owing to which severe damages were suffered by those plants. The plant at Fukushima Daiichi, as a result of the earthquake, accompanied with the tsunami experienced hydrogen outbursts and grave damages in relation to nuclear fuel which triggered the discharge of a noteworthy quantity of radioactive elements in the surrounding environment (Holt, Campbell, & Nikitin, 2012). The contamination of the surrounding environment, with the radioactive elements that originated from the plants, compelled the moving out of communities from the adjacent or the neighboring areas till 25 miles. The forceful move out of the communities resulted in disturbing the regular life of around 100,000 residents, majority of whom were believed to remain b anned from accessing their respective homes for an indefinite period. The evacuation activities made in this context are considered to have checked the degree of radiation exposure with regard to the concerned population from surpassing the Japanese authoritarian boundaries in majority of the incidences. However, the consequences of the exposure to the radioactive gases with regard to the residents were measured not to be quite grave. Future deaths as well as

Job resume Essay Example | Topics and Well Written Essays - 500 words

Job resume - Essay Example Excellent communication skills, good negotiation skills, passion in travelling, fluency in English and the ability to undertake difficult responsibilities are some of the plus points which made me suitable for this profession. Apart from marketing skills, in my opinion, a marketing professional needs management skills and the ability to work in a team. My diverse experiences in Bobby Brown Cosmetic Shop, Samsung life insurance and Oriental Spoon Restaurant have added more value to my leadership, marketing and management skills. It is difficult to market a product using the same marketing strategy all over the world. Each market has its own identity and characteristics because of the cultural, social, political and economical differences. In other words, custom made marketing strategies are necessary for each market. Korea is one of the rapidly developing economies in the world even amidst tensions with the neighboring countries like North Korea. In United States, FedEx has succeeded in monopolizing the logistics market whereas in Korea same thing cannot be said about FedEx. I have studied many of the marketing strategies of the FedEx in America and I think I can implement those strategies in Korea with a little bit of fine tuning. Currently, FedEx failed to deliver even in-state deliveries on the same day of shipping in Korea (Max). But in United States the case is different. In fact same day delivery of goods made FedEx the number one logistics company in United States. In my opinion, FedEx should try to deliver as much as goods on the same day of shipping in Korea also in order to become the market leader there. I have an extensive 150 days marketing plan for my Korea operations if succeeded in getting a marketing profession in FedEx. If FedEx provides me an opportunity to work in Korea, I will use the initial 30 days for studying the market. Market study is

The Story of Qiu Ju Essay Example | Topics and Well Written Essays - 750 words

The Story of Qiu Ju - Essay Example In reaction, the chief beat Qinglai up and kicked him in the groin, thus causing the injuries. At first, Qiu Ju seeks an apology from the village chief for beating up her husband, reasoning that the act was not right. The chief refuses to give an apology because he believes that if he does, he will lose face. Qiu Ju, adamant that justice should be given to her husband, brings her case to their village public service bureau or PBS. The village PBS orders the chief to pay Qinlang 200 yuan to reimburse the medical expenses as well as wages lost to Qinlang while he is recovering from his injuries. The chief shells out the money as ordered, but he refuses to make the apologies Qiu Ju requires. Qiu Ju becomes unhappy by the chief's refusal and brings the case to the district PBS. The district PBS issues the same decision, but the chief, while willing to pay the money, remains adamant about not giving the apology. Qiu Ju then brings the matter to the city PBS, then sues the village chief but loses the case. Still unfazed, Qiu Ju afterwards makes an appeal to the intermediary bureau. In the meantime, beset by the gossip being whispered in their community, Qinlang himself asks Qiu Ju to stop pursuing the matter and to just let it go. While awaiting the result of the trial, Qiu Ju goes into labor and her condition becomes delicate. She receives assistance from the village chief himself in bringing her to the hospital, and this somehow heals the rift between herself and the chief. However, at the celebration of her newborn son's turning a month old, the chief is arrested by the police, and Qiu Ju fails to stop them. Basically, the film talks about the roundabout pursuit of justice in Maoist China. It is set in rural China, probably during the late 1970s or early 1980s, as hinted by the references to the one-child policy instituted in that country in 1979 (Wikipedia, 2002b). Actual locations were used in filming the movie, and these locations depict mostly the poverty and squalor Chinese citizens, especially in the countryside, were subjected to during that time. The fact that the story is also set in the winter season only emphasizes how difficult living conditions were then. China at that time was still reeling from the effects of the Cultural Revolution (Wikipedia, 2002a). Economy is beginning to recover, at least from the viewpoint of the city folk, where buildings are well-planned and the roadways are paved. Such is not the same in the countryside, however, and it is grueling to watch Qiu Ju travel on foot, by cart and by hitchhiking down the long and winding dirt roads with her swollen belly and with only her sister-in-law for a companion. These journeys to and from her village took a toll on her, eventually making her pregnancy and childbirth complicated and nearly costing Qiu Ju her life. These inaccessible roads, however, did not seem to hinder officials from the public service bureau from coming to Qiu Ju's village to investigate her case. Entire families comprising of parents, grandparents and children live in two-room houses along with their pets, and perhaps livestock, bringing into question issues on health and hygiene. People from the countr yside are distinguishable by their clothes: as depicted in the movie, they only

Supply chain management Essay Example | Topics and Well Written Essays - 2500 words - 1

Supply chain management - Essay Example This involves buying the necessary products, and upgrading, recycling, installing, maintaining or replacing them. The effective principle in consumption is to resolve the problems encountered by consumers and for this to be achievable, one must apply proper information about the consumption of a product. The principle provides that one should not put the customer on waiting and this is achievable by removing all barriers, which involve queuing, which may lead to time wasting. It’s further aimed at ensuring that the customer access whatever they need and this obtainable by putting in place measures that are workable, add value to products by applying cost effective measures and it also provide that the goods should be made valuable upon request by consumer and this can be achieved by working closely with the customers. The above principles can be achieved by application of effective consumption, provision and production of products. Since these principles are easy to comprehend and apply then they are compatible with any line of production. How leaders make effectiveness stick To make the efficiency principles to be constant, there is the need for motivation. This can be in the form of rewards such as promotions and bonuses. The efficiency tools and techniques can be used in budgeting and other preparations in order to work well. It is also advisable to keep track of the results. For the lean idea to work, the people working should have positive attitudes and be determined on making it work. This goes a long way in making them focused. This can be done by setting up standards that need to be met and making any necessary developments. There is need for pilot tests to prove that the efforts are beneficial. Therefore, from the above point, it is true to say that implementation of the lean is the determining factor in whether it will stick or not. There is also need for some motivation for the people in order to show them that it can result in good and signif icant change. Application of strategy This has been developed from Toyota’s â€Å"Hoshin Kanri†, being basis of its planning and implementation methods. In this era, the markets demands for very little mistake, emphasizing the necessity of strategizing. It is also wise to approach it in a different manner, which is unique and focuses on entrepreneurship. Having strategies is important in lean as it allows analyzing getting results. This should be focused on making plans, making the problems known and getting solutions to those problems. This can be done through approaches that make the process of adjusting a bit easier. Problems can be either big, which are usually less, medium and small ones which are the most. By breaking the problems down to small pieces to investigate on its nature and analyzing it using the five why analyses, it is possible to gather solutions and the possible and best measures to take. Intuition is also an important aspect to include in the strat egy. The aforementioned gives very detailed ideas on correcting problems in small bits. The

First Nations and the Justice System Essay Example for Free

First Nations and the Justice System Essay First Nations are badly represented within our current justice system. They face a forced environment that does not represent their needs. Many of the problems that First Nations peoples face with respect to the justice system are influenced by their historical place in native and early in Canada. The first European settlers view of land ownership was a lot different from the Aboriginal theory that all things are related and development is viewed as circling the four parts of life: physical; mental; emotional; and spiritual. The Europeans didnt understand the Aboriginal spiritual attachment to their land. The concept of land ownership was foreign to Aboriginal culture and they could not understand the concept of owning lands, they believed that land was provided for the use and benefit of all living creatures. In Manitoba, Aboriginal people accounted for 71% of sentenced admissions in 2005/2006 (and make up 16% of the outside population) and aboriginals accused are more likely to be denied bail. Why are these percentages so high? Well many aboriginals still continue to fight for their rights to hunt and fish, even though they risk a higher chance of going to jail in doing so and most of the members in the jury of court are all non-aboriginals and will not side with them. Another factor that contributes to the high number of aboriginals in jail is the poverty in most of the reserves, the justice system has also contributed to the poverty by not allowing them to fight for their right. Social factors today that contribute to the poverty is, lack of education, there are not many Mikmaq schools that teach kids in the Mikmaq language. Some parents have been in residential schools, and most of those parents are alcoholics due to the way they were treated in the residential schools, being a alcoholic makes it difficult to provide for their family leading to the number of drop outs in schools because the kids feel like they need to take care of their parents. The number of Aboriginal students finishing high school is still lagging which is well behind the national average. In the 2001 census, 43 per cent of Aboriginal people between the ages of 20 and 24 have not graduated from high school, and not finishing high schools leads too having to find some way of making money, an easy way to make money without a education is selling drugs. For the Canadian population as a whole, the number of non-high school graduates in the same age range is 16 per cent so aboriginals contribute to most of that number. How could the government lower the high number of statistics for first nations people in jail? Well the government could provide a better educations for the mikmaq students, and put more money into reserves that are in poverty. The government could make more job opportunities for Mikmaq people. Maybe put more jobs in the reserves. Either way, the government doesnt do enough to change the statistics for the first nations people in jail.

The History of Algebra

The History of Algebra The dissertation will discuss about history of algebra, which is one of most important branch of arithmetic, the founder of algebra, meanings of algebra and its benefit in our daily life, how we can learn and teach in the best way? What is Algebra? Algebra is a branch of mathematics, as we know maths is queen of science, it plays vital role of developing and flourishing technology, we use all scopes in past and newly, the algebra is not exceptional the maths. Algebra is one of the main areas of pure mathematics that uses mathematical statements such as term, equations, or expressions to relate relationships between objects that change over time. Here is a list of names who have contributed to the specific field of algebra. Algebra is seen by much arithmetic with letters and a long historical precedent the textbooks, stretching back of the 14th century. As such it deepens upon experience and facility with arithmetic calculations. It provides student with skill to carry out algebraic manipulations .many of the which parallel arithmetic computation. At the very least ,school algebra is a collection of mathematical practices and procedure to be internalised and integrated into learners functioning ,at the very most in its tradition form its afford glimpse of a powerful tool for modelling and thus resolving problems, (page 559 jifa cai) Word Algebra The word algebra is a shortened misspelled transliteration of an Arabic title al-jebr wal-muqabalah (circa 825) by the Persian mathematician known as al-Khwarizmi [words, p. 21]. The al-jebr part means reunion of broken parts, the second part al-muqabalah translates as to place in front of, to balance, to oppose, to set equal. Together they describe symbol manipulations common in algebra: combining like terms, moving a term to the other side of an equation, etc. In its English usage, in the 14th century, algeber meant bone-setting, close to its original meaning. By the 16th century, the form algebra appeared in its mathematical meaning. Robert Recorde (c. 1510-1558), the inventor of the symbol = of equality, was the first to use the term in this sense. He, however, still spelled it as algeber. The misspellers proved to be more numerous, and the current spelling algebra took roots. Thus the original meaning of algebra refers to what we today call elementary algebra which is mostly occupied with solving simple equations. More generally, the term algebra encompasses nowadays many other fields of mathematics: geometric algebra, abstract algebra, Boolean algebra,s-algebra, to name a few. Algebra is an ancient and one of the most basic branch of mathematics, invented by Muhammad Musa Al-Khwarizmi, and evolve over the centuries. The name algebra is itself of Arabic origin. It comes from the Arabic word al-jebr. [1] http://www.cut-the-knot.org/WhatIs/WhatIsAlgebra.shtml The English invented the world (Kelly 1821-1895) algebra of matrices and the research (Paul 1815-1864) may have emerged since 1854 and from this research Boolean algebra, also appeared in 1881 forms of art to illustrate the Boolean algebra, (availablhttp://www.jeddmath.com/vb/showthread.php?t=5330/15/052011). History of algebra In history, we find some following mathematicians who have great contributions in development of algebra. Cuthbert Tunstall Cuthbert Tunstall (1474 -1559) was born in Hackforth, Yorkshire, England and died in Lambeth, London, England. He was a significant royal advisor, diplomat, and administrator, and he gained two degrees with great proficiency in Greek, Latin, and mathematics. In 1522, he wrote his first printed work that was devoted to mathematics, and this arithmetic book De arte supputandi libri quattuor was based on Paciolis Suma. Robert Recorde Robert Recorde (1510-1558) was born in Tenby, Wales and died in London, England. He was a Welsh mathematician and physician and in 1557, he introduced the equals sign (=). In 1540, Recorde published the first English book of algebra The Grounde of Artes. In 1557, he published another book The Whetstone of Witte in which the equals sign was introduced. John Widman John Widman (1462-1498) was born in Eger, Bohemia, currently called Czech Republic and died in Leipzig, Germany. He was a German mathematician who first introduced + and signs in his arithmetic book Behende und hupsche Rechnung auf Allen kauffmanschafft. Thomas Harriot Thomas Harriot (1560 -1621) was born in Oxford, London and died in London England. He was an astronomer and mathematician, and founder of the English school of algebra. William Oughtred William Oughtred (1575-1660) was born in Eton, Buckinghamshire, England and died in Albury, Surrey, England. He was one of the worlds great and formally trained mathematicians. Oughtred, in his book Clavis Mathematicae included Hindu-Arabic notation, decimal fractions and experimented on many new symbols such as ÃÆ'-,::, >, and John Pell John Pell (1611-1685) was born in Southwick, Sussex, England, and died in Westminster, London, England. Pells work was mostly based on number theory and algebra. Pell published many books on mathematics such as Idea of Mathematics in 1638 and the two page A Refutation of Longomontanuss Pretended Quadrature of the Circle in 1644. Reverend John Wallis John Wallis (1616-1703) was born in Ashford, Kent, England and died in Oxford, England. In 1656, Wallis published his most famous book Arithmetica Infinitorum in which he introduced the formula /2 = (2.2.4.4.6.6.8.8.10)/ (1.3.3.5.5.7.7.9.9). In another of his works, Treatise on Algebra, Wallis gives a wealth of information on algebra. John Herschel John Frederick William Herschel (1792-1871) was born in Slough, England and died in Kent, England. He was a great astronomer who discovered Uranus. In 1822, he published his first work on astronomy, a small work to calculate the eclipses of the moon. In 1824, he published his first major work on double stars in the Transactions of the Royal Society. Charles Babbage Charles Babbage (1791 -1871) was born in London, England and died in London, England. In 1821, Babbage made the Difference engine to compile tables of mathematics. In 1856, he invented Analytical Engine, which is a general symbol manipulator and similar to todays computers. Sir Isaac Newton Sir Isaac Newton (1643-1727) was born in Lincolnshire, England and died in London, England. He was a great physicist, mathematician, and one of the greatest scientific intellects of all time. In 1672, he published his first work on light and color in the Philosophical Transactions of the Royal Society. In 1704, Newtons works on pure mathematics was published and in 1707, his Cambridge lectures from 1673 to 1683 were published. ( http://www.barcodesinc.com/articles/algebra-history.htm) How is Algebra used in daily life? Every day in our life and all over the world we use Algebra many places as well as finances, engineering, schools, and universities we cant do most scopes without maths.( It is actually quite common for an average person to perform simple Algebra without realizing it. For example, if you go to the grocery store and have ten dollars to spend on two dollar candy bars. This gives us the equation 2x = 10 where x is the number of candy bars you can buy. Many people dont realize that this sort of calculation is Algebra; they just do it). (http://wiki.answers.com and http://wiki.answers.com) Other Definitions Algebra is the parts of mathematics where numbers and letters are used like A B or X and Y, or other symbols are used to represent unknown or variable numbers. For examples : in A +5 = 9, A is unknown, but we can solve by subtracting 5 to both sides of the equal sign (=), like this: A+5 = 9 A+ 5 5 = 9 5 A +0 = 4 A = 4 3b+12=15 subtract both sides 12 3b+12-12=15-12 3b=3 divide both sides 3 to get the value of b which is 1 and so on 5x/5x=1 if you substitute x any number not zero the equation will be true (Algebra is branch of mathematics that substitutes letters for numbers. An algebraic equation represents a scale, what is done on one side of the scale with a number is also done to the other side of the scale. The numbers are the constants. Algebra can include real numbers, complex numbers, matrices, vectors etc. Moving from Arithmetic to Algebra will look something like this: Arithmetic: 3 + 4 = 3 + 4 in Algebra it would look like: x + y = y + ) artical http://math.about.com/cs/algebra/g/algebradef.htm Terminology used in algebra to make algebra easy or any other branches of maths, we must understand well all basic sign in all operations and use it right way, these signs are , subtractions ,division, addition ,multiplication. variable is also called an unknown and can be represented by letters from the alphabet letters. Operations in algebra are the same as in arithmetic: addition, subtraction, multiplication and division. An expression is a group of numbers and variables, along with operations. An equation is the equality of two expressions. (Polynomials are often written in descending order, in which the terms with the largest powers are written first (like 92 3x + 6). If they are written with the smallest terms appearing first, this is ascending order (like 6 3x + 92). equation An equation is a mathematical statement that contains an equal sign, like ax + b = c. exponent An exponent is a power that a number is raised to. For example, in 23, the exponent is 3. expression An algebraic expression consists of one or more variables, constants, and operations, like 3x-4. Each part of an expression that is added or subtracted is called a term For example, the expression 42-2x+7 has three terms. factor The factor of a number is a number that divides that number exactly. For example, the factors of 6 are 1, 2, 3 and 6. formula A formula shows a mathematical relationship between expressions. fraction A fraction is a part of a whole, like a half, a third, a quarter, etc. For example, half of an apple is a fraction of an apple. The top number in a fraction is called the numerator; the bottom number in a fraction is called the denominator. inequality An inequality is a mathematical expression that contains an inequality symbol. The inequality symbols are : > greater than (2>1) à ¢Ã¢â‚¬ °Ã‚ ¤ less than or equal to à ¢Ã¢â‚¬ °Ã‚ ¥ greater than or equal to à ¢Ã¢â‚¬ °Ã‚   not equal to (1à ¢Ã¢â‚¬ °Ã‚  2). integer The integers are the numbers , -3, -2, -1, 0, 1, 2, . inverse (addition) The inverse property of addition states that for every number a, a + (-a) = 0 (zero). inverse (multiplication) The inverse property of multiplication states that for every non-zero number a, a times (1/a) = 1. matrix nth operation An operation is a rule for taking one or two numbers as inputs and producing a number as an output. Some arithmetic operations are multiplication, division, addition, and subtraction. polynomial A polynomial is a sum or difference of terms; each term is: a constant (for example, 5) a constant times a variable (for example, 3x) a constant times the variable to a positive integer power (for example, 22) a constant times the product of variables to positive integer powers (for example, 2x3y). monomial is a polynomial with only one term. A binomial is a polynomial that has two terms. A trinomial is a polynomial with three terms. prime number A prime number is a positive number that has exactly two factors, 1 and itself. Alternatively, you can think of a prime number as a number greater than one that is not the product of smaller numbers. For example, 13 is a prime number because it can only be divided evenly by 1 and 13. For another example, 14 is not a prime number because it can be divided evenly by 1, 2, 7, and 14. The number one is not a prime number because it has only one factor, 1 itself. quadratic equation A quadratic equation is an equation that has a second-degree term and no higher terms. A second-degree term is a variable raised to the second power, like x2, or the product of exactly two variables, like x and y. When you graph a quadratic equation in one variable, like y = ax2 + bx + c, you get a parabola, and the solutions to the quadratic equation represent the points where the parabola crosses the x-axis. quadratic formula The quadratic formula is a formula that gives you a solution to the quadratic equation ax2 + bx + c = 0. The quadratic formula is obtained by solving the general quadratic equation. radical A radical is a symbol à ¢Ã‹â€ Ã… ¡ that is used to indicate the square root or nth root of a number. root An nth root of a number is a number that, when multiplied by itself n times, results in that number. For example, the number 4 is a square root of 16 because 4 x 4 equals 16. The number 2 is a cube root of 8 because 2 x 2 x 2 equals 8. solve When you solve an equation or a problem, you find solutions for it. square root The square roots of a number n are the numbers s such that s2=n. For example, the square roots of 4 are 2 and -2; the square roots of 9 are 3 and -3. symbol A symbol is a mark or sign that stands for something else. For example, the symbol à · means divide. system of equations A system of equations is two or more independent equations that are solved together. For example, the system of equations: x + y = 3 and x y = 1 has a solution of x=2 and y=1. terms In an expression or equation, terms are numbers, variables, or numbers with variables. For example, the expression 3x has one term, the expression 42 + 7 has two terms. variable A variable is an unknown or placeholder in an algebraic expression. For example, in the expression 2x+y, x and y are variables. +, (www.EnchantedLearning.com) Learn algebra Symbolizes the number in the account to a group that contains that number of things, for example, No. 5, always stands for a set containing 5 things. In algebra, the symbols may be replaced by numbers, but it is possible to solve the number one or more replace one icon. To learn algebra, we must first learn how to use symbols replace the numbers. And then how to create a constraint for strings of numbers. Groups and variables. There is a relationship between the symbols in algebra and groups of numbers. It is certain that each of us has some knowledge of groups of objects, such as collections of books, collections of postage stamps, and groups of dishes. And groups of numbers are not different for these groups a lot. One way to describe sets of numbers in algebra is that we are using one of the alphabet, such as the name of her p.. Then half of the numbers of this group Bhzaretha brackets of the form {}. For example, can be expressed set of numbers from 1 to 9 as follows: A = {1, 2.3, 4, 5.6, 7, 8.9}. The group of odd numbers under 20 are: B = {1.3, 5, 7.9, 11, 13.15, 17, 19}. These examples demonstrated the models of the groups used in algebra. Suppose that the age of four persons were respectively: 12, 15.20, 24. Then can be written in this age group numbers. A = {12.15, 20, 24}. How is the age of each of them after three years? One way to answer this question is that we write 12 +3.15 +3.20 +3 and 24 + 3. We note that the number 3 is repeated in each of the formulas  ¸ à ¢Ã¢â€š ¬Ã‚ ¢ four. In algebra we can express all previous versions form a single task is m + 3 where m is any number of numbers of a group. That is, it can replace any of the numbers 12, 15, 20 or 24 m are indicated. Is called the symbol m variable, called the group a field of this variable, but No. 3 in the formula m+3 is called hard because its value is always one. Known variable in algebra as a symbol can be compensated for the number of one or more belongs to a group. We can replace any names lead to correct reports or reports the wrong variable. For example: Hungary is bordered by the State of the Black Sea à ¢Ã¢â€š ¬Ã‚ ¢ Report of the wrong, as in fact can not be like this report is correct only if compensated by the variable r one of the States: Bulgaria or Romania, or Turkey. The report shall be  ¸ Turkey is a country bordered by the Black Sea à ¢Ã¢â€š ¬Ã‚ ¢ for example, the right one called the compensation that makes the report and called the right roots group consisting of all roots with a solution. The solution set is the previous example. {Bulgaria, Romania, Turkey}. And in reparation for not use the names to compensate for variables, but we use the numbers. Equations known as the camel sports is equal to reflect the two formats. Phrase: Q +7 = 12 For example, an easy equation  ¸ mean the sum of the number 7 with the number equal to 12 à ¢Ã¢â€š ¬Ã‚ ¢ To solve this equation, we can do to compensate for different numbers of Q until we get a report of the equation makes the right one. If we substitute for x the equation becomes number five report is correct, and if we substitute for x any number of other reports, the equation becomes wrong. So to solve this equation set is {5}. This group contains only one root. It is possible that the equation more than one root: X  ² + 18 = 9 o. No. 2 highest first variable x means that the number of representative variable Q is the number of box, that number multiplied by itself once. See: box. In this equation, we can make up for X number 3: 3 ÃÆ'- 3 + 18 = 9 ÃÆ'- 3 9 + 18 = 27 27 = 27 We can also compensate for X number 6: 6 ÃÆ'- 6 + 18 = 9 ÃÆ'- 6 36 + 18 = 54 54 = 54 Any other compensation for making the equation Q report wrong. Then 3 and 6 are the root of the equation. Thus, the solution set is {3.6}. There are also equations having no roots: X = + 3 If we substitute for x any number, this equation becomes a false report, and a solution is called the group of free and symbolized by the symbol {}. and some of the equations, an infinite number (for high standards) from the roots. (X + 1)  ² = x  ² + 2 x +1 In this equation if we substitute for x any number we get the right report, the Group resolved to contain all the numbers http://nabad-alkloop.com/vb/showthread.php?t=38762 What is best way to learn and teach algebra? Step-by-step equations solving is the key of teaching and learning. To find fully worked-out answers and learn how to solve math problems, one step at a time. Studying worked-out solutions is a proven method to help you retain information. Dont just look for the answer in the back of the book; There are five laws basic principles of math governing operations: multiplication addition subtract and expressing the variables and can be compensated for any number Algebra is an essential subject. Its the gateway to mathematics. Its used extensively in the sciences. And its an important skill in many careers. Many people think, it is a nightmare and causes more stress, homework tears and plain confusion than any other subject on the curriculum but that is not true. The importance of understanding equation Connotation and denotation on extension of a concept two opposite yet complementary aspects is clarified the extension is defined vice versa understanding the concept equation includes its connotation and denotations. This session of observed lessons will show the essential nature or the equation is consolidated by designing problem variation putting emphasis on clarifying the connotation and differentiation the boundary of the set of object in the extension. (Page 559 Jifa cai) Whats the best formula for teaching algebra? Immersing students in their course work, or easing them into learning the new skills or does a combination of the two techniques adds up to the best strategy? Researchers at the Centre for Social Organization of Schools at Johns Hopkins are aiming to find out through a federally funded study that will span 18 schools in five states this fall. The study, now in its second year of data collection, will evaluate two ways to teach algebra to ninth-graders, determining if one approach is more effective in increasing mathematics skills and performance or whether the two approaches are equally effective. Participating schools in North Carolina, Florida, Ohio, Utah and Virginia will be randomly assigned to one of two strategies for the 2009-2010 school year; to be eligible, students must not have previously taken Algebra I. Twenty-eight high schools were studied during the 2008-2009 school year. One strategy, called Stretch Algebra, is a yearlong course in Algebra 1 with students attending classes of 70 to 90 minutes a day for two semesters. This approach gives students a double dose of algebra, with time to work on fundamental mathematics skills as needed. The second strategy is a sequence of two courses, also taught in extended class periods. During the first semester, students take a course called Transition to Advanced Mathematics, followed by the districts Algebra I course in the second semester. The first-semester course was developed by researchers and curriculum writers at Johns Hopkins to fill gaps in fundamental skills, develop mathematics reasoning and build students confidence in their abilities. The question is, Is it better for kids to get into algebra and do algebra, or to give kids the extra time so the teacher can concentrate more on concepts started in middle schools? said Ruth Curran Neild, a research scientist at Johns Hopkins and one of the studys principal investigators. Teachers using both strategies will receive professional development. Mathematics coaches will provide weekly support to those who are teaching the two-course approach; the study will provide teacher guides and hands-on materials for students in Transition to Advanced Mathematics. Johns Hopkins researchers will be collecting data throughout the school year. Findings are expected during the 2010-2011 school year. http://gazette.jhu.edu/2009/08/17/calculating-the-best-way-for-teaching-algebra/ Learn Algebra, the easy way The key to learn and understand Mathematics is to practice more and more and Algebra is no exception. Understanding the concepts is very vital. There are several techniques that can be followed to learn Algebra the easy way. Learning algebra from the textbook can be boring. Though textbooks are necessary it doesnt always address the need for a conceptual approach. There are certain techniques that can be used to learn algebra the fun and easy way. Listed below are some of the techniques that can be used. Do some online research and you will be surprised to find a whole bunch of websites that offer a variety of fun learning methods which makes learning algebra a pleasant experience and not a nightmare. But the key is to take your time in doing a thorough research before you choose the method that is best for you, or you can do a combination of different methods if you are a person who looks for variety to boost your interest. 1. ANIMATED ALGEBRA : You can learn the basic principles of algebra through this method. Animation method teaches the students the concepts by helping them integrate both teaching methods. When the lessons are animated you actually learn more ! 2. ALGEBRA QUIZZES : You can use softwares and learn at your own pace best of all you dont need a tutor to use it. What you really need is something that can help you with your own homework, not problems it already has programmed into it that barely look like what your teacher or professor was trying to explain. You can enter in your own algebra problems, and it works with you to solve them faster make them easier to understand. 3. INTERACTIVE ALGEBRA : There are several Interactive Algebra plugins that allows the user to explore Algebra by changing variables and see what happens. This promotes an understanding of how you arrive at answers. There are websites that provide online algebra help and worksheets. They also provide interactive online games and practice problems and provide the algebra help needed. It is difficult to recommend better methods for studying and for learning because the best methods vary from person to person. Instead, I have provided several ideas which can be the foundation to a good study program. If you just remember all the rules and procedures without truly understanding the concepts, you will have difficulty learning algebra. (http://www.ehow.com/how_4452787_learn-algebra-easy-way.html)

Airport Privatisation The Challenges Way Forward Economics Essay

Airport Privatisation The Challenges Way Forward Economics Essay Traditionally all the airports were owned by the public sector. The European airports in major cities such as Paris, London, Dublin, Stockholm, Copenhagen, Madrid, and Geneva were all owned by national governments. The airports outside Europe like Tokyo, Singapore, Bangkok, Sydney, and Johannesburg were similarly owned by their countrys government bodies. Elsewhere, the major airports like in the U.S. were controlled by local or regional governments. Regional airports in Europe too followed this rule. For example, Manchester airport was owned by Manchester City Council and a combination of 8 local authorities of nearby towns with 45% ownership resting with the latter and 55% with the former authority. In Germany, Dusseldorf airport was owned by the governments of North Rhine, Westphalia state and the city of Dusseldorf together, whereas, the Hanover airport was owned jointly by the governments of Lower Saxony and the city of Hanover. In the 1990s, private or partially privately owned airports became significant. Before this, the privately owned airports were limited only to the general aviation or to the aeroclub airports. The norm during that period was that the public ownership, i.e. the government handled the airport operations at least at a local or majorly at national level. This had a major impact on the operations of the airport and its degree of independence. The strictest form of control existed when the government had direct control over the airport, for example the Civil Aviation Authority (CAA), Ministry of Transport or, in few cases, the military. This was commonly practiced in Asia, the Middle East, Africa and South America. In Canada, 150 commercial Canadian airports were directly controlled by The State Department of Transport. Within Europe, Greece was a good example where CAA controlled all the airports effectively. In some cases, semi-autonomous bodies and companies, those were still under the public ownership owned the airports. Some organizations managed more than one airport, British Airports Authority (BAA) and Aer Rianta Irish Airports were good examples in Europe. Other airport authorities and companies also existed that operated just one major airport. This was the case at Amsterdam airport and many German airports. In the U.S., airport authorities also existed for some of the airports, such as the Minneapolis-Saint Paul Metropolitan Airports Commission. In some cases, multipurpose transport authorities which operated other modes of transport also operated airports, such as the Port Authority of New York and New Jersey or Massport in Boston. There were also examples of airports where companies which were publicly owned managed the airports at concession for the central government. For example, the major Italian airports like Venice and Milan were controlled by public shareholdings and perhaps some private shareholdings at concession for long terms, such as 60 years. The concession could cover management of the total airport operations and handling services like Milan and Turin or just some of the operations like terminal management and handling services like Palermo. At French regional airports, the concessions were given to the local chambers of commerce, but national government holding some control over the airfield facilities. For example, at the Zurich airport, the planning and the overall operation of the airport and the airfield infrastructure is controlled by the Zurich Airport Authority, which is owned by the Canton of Zurich, while a mixed public private company, named FIG, managed and constructed the terminal i nfrastructure. Commercialization The publicly owned and strictly controlled airports were historically considered as a public utility for the public service obligations. As a result, the airport industry was not considered as a business dominant industry but a general public service transport system. However, in the 1970s and 1980s the perspective towards airport management changed as the industry grew towards airline privatization and deregulation. Many airports then were considered more of a commercial industry and businesslike management philosophy was adopted. Thus the airport industry around the world took steps towards commercialization with Europe as its leader. However, airports in areas like Africa and South America mostly stuck on to the traditional way and experienced less changes. The coming of commercialization was seen in many different steps. For instance, many independent airport authorities and airport companies with public shareholders were established resulting in less government control over airports. This gave airports more of operational and commercial freedom and also gave private sector investment and partnership more chances. In 1972, the International Airports Authority of India was established to manage Indias four international airports. In 1986, National Airports Authority took control of the domestic airports in the country. These two merged in 1995. In Canada, where the Transport Canada was in direct control of the countrys major airports, passed its airport management completely to individual non-profit-making authorities in a long-term lease in the 1990s. its main reason was to improve its efficiency and integrate it to the local economy. During the commercialization process, airport management was focused upon operational aspects like financial management, non-aeronautical revenue generation and airport marketing. Many airport directors and senior managers were operational specialists. This realization of commercialization resulted in expansion of staff members and operational resources. Also the typical departments for finance, administrations, operations, and so on was replaced with new department or business units like customer needs, passenger and airline services. One of the most significant changes during commercialization was an increased focus on the non-aeronautical revenues and commercial revenues. Aeronautical revenues such as landing and passenger fee from the airlines had been the most important source. In most of the airports, mainly European airports, non-aeronautical revenues overtook aeronautical revenues as the most important source. For example, Amsterdam airport first reported of its higher non-aeronautical revenue when compared to its aeronautical revenue. This was due to large space allocation to commercial retail shops and other non-aeronautical facilities. In the past, it was very difficult to obtain a true indication of an airports financial and economic performance. Often the government would undertake normal public accounting practices specific to its country and would use public sector rather than more standard commercial procedure. This resulted in difficulty in comparing it with the other organizations. In some cases, airports cost and revenues were considered as one item only within the government departments financial accounts. Therefore no specific profits from the airports could be determined. In the 1970s and 1980s, more commercial accounting practices were adopted in most of the airports. This was mainly due to less control in the hands of the government. For example, in 1987, all major airports in the U.K. became public limited companies (plc). This meant that these airports adopted commercial private sector accounting procedures. One example of this was when Geneva airport became an independent authority in 1994, it began to show balance sheets and asset values in its annual accounts, which previously was ignored. Privatization During the 1970s and the 1980s, commercialization took great strides in the growth of airports around the globe. But it was during 1990s when privatization became a reality. But what is actually meant by privatization? In its broadest sense, it usually means the transfer of airport management, and sometimes ownership as well, to the private sector. Privatization of publicly owned airports had many arguments both supporting and against it. Privatization reduces the need of public sector investment and provides access to commercial sectors. It reduces government control and interference enabling the organization to diversify. It may also increase the operational efficiency of the airport, induces competition and payment of incentives for management and employee staff to perform well. There were some developments that took place in the 1970s and 1980s which strengthened the reasons for airport privatization to occur in some countries. For example in North America and Europe, deregulation resulted in the growth of the airports which meant the existing airport capacity could not cope with this growth. Privatization of airports was considered as a means of injecting additional finance into the airport systems to pay for the future investments. In addition to this, public sector funding became very scarce in the modern-day global econ omic climate as government thought of reducing their spending and turned to non-revenue-earning activities like education and health. Privatization also has some adverse effects like it may create a private monopoly which charges extra for same or lesser standards of services, invests inadequately and gives less consideration to externalities like controlling environmental impacts and maintaining social justice. Less favorable employment condition may occur and redundancies may occur. From a point of view, airport privatization can be considered as just an evolutionary development of the aviation industry. Airports evolved from public sector utility to commercial enterprises and privatization can be considered as commercialization taken to its limits. Increased commercialization has brought about good profits and market oriented management. The increase in number of airport privatization around the world has shown us that this method has successfully achieved ways to tackle some problems that could be faced by the airports in the 21st century. However, this in some countries where publicly owned organizations are considered as national or regional assets being transferred to private companies could be a sensitive political issue. It brings fear that the focus would be then shifted to private shareholders and the customer needs will be neglected. Privatization of airports may have different views among different groups and even between the local and national government. As a result, it should not be thought that commercialization always leads to privatization. A good example for this is the Manchester airport, which runs on a very commercial basis, but has no desire to undergo privatization. Types of Privatization Airports are one of the most attractive organizations for investors, for many reasons. Firstly, the aviation industry has a unique growth rate. Many airports, mainly the major airports have less or no competition, from the airports and also from other modes of transports. It is difficult to enter into the airport industry as it requires heavy capital investment and also difficult to find an appropriate and convenient locations where airport development is allowed. However, there are risks also available such as the political interference in the form of airport regulation and control over airport development as there is deregulation and greater collaborations through alliances. According to the document prepared by Carney and Mew in 2003, the types of privatization can be broadly classified into 5 types: Share floatation Trade sale Concession Project finance privatization Management contract The selection of the most appropriate type of privatization for the airports is done by a series of complex decision-making process in which the reasons for privatizing is checked by fulfilling certain conditions. Share Floatation The first type, i.e., the share flotation or Initial Public Offering (IPO), where the airport share capital is issued, and traded on the stock market. The Management or the public owners are given options to acquire shares. In this type, the government or the public owners give up the total or partial ownership according to the shares open, transferring economic control and risks to the new shareholders. Generally this type of privatization has shown positive results with promising economic growth rate and limited competition as the capital investments are too high for the risk to be taken. Even when total privatization occurs, the government has a certain degree of influence by issuing a golden share so that the national interests can be secured in extreme cases. Trade Sale In this type of privatization, some parts of the airport or the total airport is sold to a trade partner or a consortium of investors, through a public tender. The trade sales which took place in the 1990s had strategic partners involved rather than just passive investors. As a result, the managerial and technological expertise was considered while agreeing on a sale. Concession With this type of arrangement, an airport management company or consortium will purchase a concession or lease to operate the privatized airport for a defined period of time, commonly between 20 and 30 years, again usually through a tendering process. Financial terms and the types of lease will vary but typically this option will involve an initial payment and a guaranteed level of investment and/or payment of an annual fee. Hence this tends to be a more complex approach, which has high transactions costs and needs to carefully designed and implemented to ensure that the private contracts achieve the government policy objectives. Project Finance Privatization With this option, a company will usually build or redevelop and then operate an airport or specific facility, such as a terminal, for a certain length of time, typically 20-30 years. This company may be totally private or may be a private-public partnership. At the end of this period, ownership will revert to the government owners. Thus this approach can be viewed as a particular type of concession agreement. Generally such an arrangement will not usually require a large upfront payment but the operating company will bear all the costs of building or re-developing the facility. When it is built, the company will have to cover the operating costs but will also retain most revenues (often after paying an annual fee to the government) until the facility is handed back. Thus, the airport company will take full economic risk for investment and operations. There are a number of project finance privatization methods with the most popular being build-operate-transfer (BOT) when, as the name suggests, the company will build the facility, operate it for a certain length of time and then transfer ownership back to the government. Other similar models include build-transfer (BT), build-rent-transfer (BRT) or design-construct-manage-finance (DCMF). Other options may actually involve the ownership of the facility such as build-own-operate-transfer (BOOT) or rehabilitate-own-transfer (ROT) projects. All these methods, however, are often referred to by the generic term BOT. Management Contract The least radical privatization option is a management contract when ownership remains with the government and the contractors take responsibility for the day-to-day operation of the airport, usually for a period of 5-10 years. The government either pays an annual management fee to the contractor, usually related to the performance of the airport, or the contractor will pay the government a share of its revenues. Normally investment will remain the responsibility of the government owner and so the overall economic risk is shared between the owner and the management company. For the government owner this may be politically more acceptable, whereas for the contractor such an arrangement may be attractive in countries where greater financial exposure, through a trade sale, for example, may be seen as too great a risk. Overview The overall reason for this report is to analyze the effects of ownership change on the economic growth of the industry. The main success of privatization is not by attaining maximum airport profits but by providing quality service with continuously improvising efficiency and maintaining cost of charges. There are a number of lessons that can be learnt from this experience: The cost of capital is found to be too high in the plc privatization model. Efficiency is optimized when the business is outsourced. Performance can be improvised even without ownership change. It is difficult to reach objectives to provide quality, cheap, and safe service simultaneously. Privatization is not a successful option unless customer needs are not kept in priority for the growth and development. Customers have gained some from privatization, in terms of lower prices relative to the public ownership organizations, but not by a lot. Identifying Challenges Vienna International Airport (VIA), Austria Privatization resulted in inadequate investment and high charges for customers. Before privatization, VIE had high costs. The weak economic regulation did not help much to change this providing no incentive to improve efficiency, provide adequate investment, or hold back monopoly profits. This is due to the direct regulation of charges from the government. Due to the classic monopolist behavior, profit margins are restricted. As a result, insufficient incentives are being produced which cannot further pay for the cost-efficient investments for the future of the airport. Zurich Airport (ZRH), Switzerland The independent TRL Charges Index of the top-50 airports worldwide ranks Zurich Airport as the 10th costliest airport in the world. Due to the collapse of Swissair, capacity constraints have emerged at the Zurich Airport. As a result it is the least profitable airport among the top 50 airports. Absence of an independent economic regulation resulted in low incentives for higher efficiency. The airport has switched from single-till to dual-till which resulted in the aeronautical revenue to bear all the cost of aircraft and passenger service. Auckland International Airport (AIA), New Zealand Absence of an effective economic regulation, due to which they charge excessively on their customers for higher incentives. Asset base and operational cost valuation of the AIA is remarkably high due to its dominant market position. Moreover the cost of capital used by AIA also appears to be extremely high. These appear to be the reasons for high base for charges. Sydney International Airport (SYD), Australia Although the service quality is complimented by passengers, airlines are less satisfied and charges are high. The prices rose high in 2001, giving reasons that it would help SYD earn a commercial rate of return. SYD also switched to Dual-till; therefore the aeronautical revenue is only confined to cover the aircraft and passenger service charges. The ACCC, similar to the Competition Commission in the U.K., is not influential enough to encourage SYD to increase their efficiency as there is no incentive-based price cap. Perth Airport (PER), Australia Huge price rise in service charges with no improvement in services or any significant capital investment. Absence of economic regulation, asset evaluation and the use of dual-till; all this result in increase in charges for the customers. Ezeiza International Airport (EZE), Argentina Privatization meant very bad for the customers. High charges for the structure, under-investment and poor quality of service to the customers. Absence of an independent economic regulator has led to very high service charges. It also resulted to a very confrontational relationship between the government, airport operator and the customers. Capacity constraints have been dealt very poorly. Under-investments due to payment of high royalties. No competition between service providers led to high customer charges with low standards of service. Athens International Airport (AIA), Greece Service quality is good to the customers but comes at a very high price. It ranks the 3rd highest charges in the world. No consultation with the airline customers on building of the new airport, therefore high cost and inefficient investment. The rate-of-return economic regulation creates no incentives for improving efficiency and permits monopoly profits. If the profits are not met within one year, then the regulator allows charges to be raised in order to recoup. The AIA also uses the dual-till. This means the aeronautical revenue is confined only to the aircraft charges and passenger charges which should have been also used for the commercial charges. There has been over 20 years since privatization of infrastructure providers started in different industries. Although, considerable rise of amounts had been achieved by privatizing many publicly owned companies fully or partially, general public and customer interest had not been one of the major concerns. From the identified challenges brought into light due to privatization of airports all around the globe, some prominent issues like cost inefficiency, high charges due to no independent economic regulation in existence. The cost of capital is too high under the plc privatization model. There is no improvisation in the efficiency and quality of customer services to cope with low or minimal incentives. The privatization of airports has also brought the issue of capacity, financial and environmental constraints into light. This resulted in potential discrimination between incumbent and new airline companies. Expanding capacity at new major airports require huge amounts of capital, where public sector funding might not be sufficient, therefore private sector investment has to be considered. But for future investments, incentives and service charges have to be rightly considered and revised. Compacting Strategies An efficient economic regulation is necessary to regulate the cost of capital, the asset and resource valuation and to control the service charges according to the quality of service provided. It is also needed to improvise the quality of service provided to airlines and customers according to the incentives. It has to optimize the use of given space capacity, both for aircrafts and passengers. An efficient economic regulation system is appropriate for bringing a balance between the service provided and service charges by setting up a fair and efficient charging system for airports infrastructure. It may encourage private investors to invest and take control of commercial management. It is noticed through history that airports when operated with commercial outlook, the performance, efficiency and financial situation is improved, whether it may be publicly owned or privately owned. Airports governed by national or local governments should be allowed some degree of freedom to run more like a commercial type and unnecessary regulations should be lifted. British Airports Authority (BAA), U.K. Excellent example of how to privatize an airport successfully, by implementing effective economic regulation of assets. Since privatization, the company has diversified. It started managing airports overseas with equal stakes and concentrating on particularly the non-aeronautical revenue generation at the airports. Effective economic regulation has been critical for the success of privatization, which regulated the aeronautical revenue considerably low and maintaining good quality of services. The existence of a Competition Commission has resulted in effective regulation of charges by keeping the customers interest in mind. The price-caps are given a regular check in order to prevent the increase in airport profits in excess of the cost of capital. This avoids inefficient investment which would lead to excessive charging of customer services. Revision of incentives for better services keeps the quality of service good and also in improvisation. If neglected, it would lead to poor quality of service in order to increase airport profits. Single-till is the mode of airport accounts management. In this method, both the aeronautical and non-aeronautical revenues are taken into account during setting the airport charges. Copenhagen Airport (CPH), Denmark Relatively successful privatization with quality service and relatively low airport charges. Effective economic regulation has been critical for the success of this privatization. This controlled the aeronautical revenue relatively low and quality of service high. Improvisation in the efficiency of services was the key to its success since shareholders are also benefitting. The regulation put price-caps by negotiation with the airline customers, if this failed, then incentive based charges are assigned to improve efficiency of the services. Brussels Airport (BRU), Belgium The economic regulation brought customers into reassurance by setting appropriate charges. With respect to the rate-of-return policy, little incentives are produced for cost efficiency improvements to reduce airport charges. Conclusion Privatization brought drastic changes as the ownership changed from public owners like national or local government to private sector ownership. But commercialization is of greater asset than privatization. Increasing the airport profits, expansion of airport capacity and economic growth happens by undertaking commercial type of management. The public owners can increase the revenue generation by liberalization and allowing the airports more degree of freedom. Effective economic regulation is critical for successful privatization as capital investment is high therefore there is less competition for private sector investment. The economic regulation is highly necessary for creating incentives, which would help in improvisation of quality of service and increasing efficiency and would restrain monopolies created by privatization and allow sharing of airport profits with the customers by reducing customer service charges. A regulatory committee in association with the economic regulation could be considered highly beneficial as they would complement each others price-capping by keeping the customers and the airports cost of capital into consideration. For successful privatization, customers should be considered as key stakeholders in the development and expansion. The pricing infrastructure should be set by keeping the customers interest as one of the most important criteria in making capital investments for growth and future development.

Investigating how the concentration of reactants affects the rate of re

Investigating how the concentration of reactants affects the rate of reaction Chemistry Coursework This experiment is aimed at investigating how the concentration of reactants affects the rate of reaction: The reaction between hydrochloric acid and magnesium will be used to investigate how different concentrations of the acid affect the rate of reaction. The gas produced from the reaction will be measured and used to display the average rate of reaction. The rate of reaction is a measure of how fast a reaction is going and how long it takes to complete. This rate is found by measuring the amount of a reactant used up per unit of time or the amount of a product produced per unit of time. For this reaction, the product will be measured, as this substance is the easiest and most accurate to measure. Scientific Knowledge: A reaction can be stimulated to go faster or slower by varying the temperature, the concentration of reactant and the surface area. For the magnesium and acid particles to react together, they must: i) Collide with each other ii) Have enough energy in the collision. 1) The particles in the liquid move around continually. Above, an acid particle is about to collide with a magnesium atom. 2) If the collision has enough energy, a reaction takes place. Magnesium chloride and hydrogen will be formed. 3) If the collision does not have enough energy, no reaction occurs and the acid particle will bounce away again. Particles need to collide with enough velocity so that they react. During a chemical reaction, the particles have to collide with enough energy to first break the bonds and then to form the new bonds and the rearranged electrons, so some of the particles do not have enough energy to react when... ...make a reaction take place. (The results from the second experiment were used in order to get a more accurate data collection.) Evaluation: For future experiments, it must be noted that the gas needs to be removed from gas syringe after each test, as this was one of the problems during the investigation. If the excess gas is not removed, the experiment begins and the results are completely out of range. It was felt that this experiment may have been easier with the aid of three people, as this would mean that there were not so many activities fro each person to record or read. In order to get a more accurate result, having recorded the measurements from the experiment, the results should have been averaged, instead of using only one set. For a full conclusion to be confirmed, more tests should have been carried out to provide enough evidence to support the argument.

Cancer Essay -- essays research papers

Cancer is new growth of tissue resulting from rapid production of abnormal cells Cancer is not a single disease but includes a number of diseases classified according to the tissue and type of cell in which new growth occurs, here are three major subtypes are Sarcomas, Carcinomas, Leukemias and Lymphomas. More than 1,350,000 new cases of cancer occur in the United States each year. Cancer is the second leading cause of death in the nation, and the leading cause of death from disease in children between the ages of 1 and 14. The figures for the United States are 217/100,000 men and 137/100,000 women. The most death causing cancers are lung cancer- 1st in each sex, colorectal cancer- 2nd in both sexes, and breast and uterine cancers in women, and prostate cancer in men. Since 1949 death from cancer in the United States has been higher among men than women. The sex ratios of different cancers vary considerably. Death from cancer is higher among blacks than among whites. A cancerous growth, is clonal- all its cells are descendants of a single cell. Fatal cells are unable to mature into an adult. These cells may form a mass called a tumor, which enlarges and continues to grow. Not all tumors are fatal; the greatest number are benign, or non-life-threatening. Cancer cells may retain the physical and biological characteristics of the tissue in which they originated. Pathologists can often determine the site of origin of a metastatic tumor by microscopic examination of the cancerous...

Reliability and Validity Matrix

TEST of Reliability | Application and APPROPRIATENESS| Strengths| Weaknesses| Internal Consistency| This measure of reliability is appropriate when trying to determine the difference in reliability from shortening or lengthening a test (Cohen & Swerdlik, 2010). Here I am specifically referring to the Spearman-Brown formula being used to determine internal consistency. A researcher could also use other measures of internal consistency meant for heterogeneous test items, such as Inter-item consistency. The reliability of a test increases with an increase in the number of test items. One of the strengths of the Spearman-Brown Formula is that is can determine how much more or less reliable a test is as a researcher lengthens or shortens the test. This measure can also work in reverse and tell a researcher how many items they need to add to reach a certain reliability coefficient. | The problem with the use of the Spearman-Brown formula to determine internal consistency is that it is only affective with homogenous test items, that is items that are the same difficulty and length.Also, tests of reliability are higher for whole-test vs. half-test applications of the formula, which means that lengthier tests work better with this instrument. | Split-half| The split-half form of measuring reliability entails creating two halves in the same test that can be compared in the same manner as the parallel form of reliability testing uses. This type of measurement is appropriate when using odd-even reliability or random assignment splits, but is most applicable when designing mini-parallel forms of the same test.In this instance, each half is, â€Å"†¦as nearly equal as humanly possible—in format, stylistic, statistical, and related aspects† (Cohen & Swerdlik, 2010, p. 145). | The strength of this kind of measure is that it is less time-consuming and less cumbersome for test-takers than the parallel form, but is also a good measure of internal consistency. T his type of measurement also help keep in check intermediary variables that might introduce error variance into the analysis, since the both parallel portions of the test are taken at once. However, there are several intermediary variables that are enhanced by this form of measuring reliability: fatigue that is felt during the second part of the test but not the first and variance in the difficulty or content of the items in the first half vs. the second half. It is also not advised to simply split a test down the middle. The different halves should have the same content and difficulty of question for the measure of reliability to be accurate. Test/retest| This type of test is applicable when the construct being measured is relatively stable over time, but is inappropriate for constructs that are not stable over time (Cohen & Swerdlik, 2010). This is because test/retest reliability is based on taking the same test, with the same people, at two different times. If the construct being measured is purported to change over time, then the scores of the test would vary because of true variance, rather than error variance—which is the basis of reliability, the latter that is. An example of this principle might be an achievement test measuring grammatical skills.If the test-taker undergoes a series of lessons on grammar between the first test and the second test, then the test will show variance, but not due to error but due to the intermediary variable of education. Test/retest reliability would be inappropriate in this situation. | The strength of this measurement of reliability are in tests that, â€Å"†¦employ outcome measures such as reaction time or perceptual judgment† (Cohen & Swerdlik, 2010, p. 143). This is because these types of psychometric traits do not vary greatly over time and are not sensitive to many types of intervening variable. The weakness of test/retest reliability is, of course, that the underlying constructs being tested can change over time, and therefore lower the test/retest reliability due to true variance rather than error variance. In this case, the overall reliability of a test might be seen as lower even though the actual measurement of the construct is stable (it is just that the construct itself varies). | Parallel and alternate forms| Both parallel and alternative forms of test reliability utilize multiple instances of the same test items at two different times with the same participants (Cohen & Swerdlik, 2010).These types of measures of reliability would be most appropriate with tests that measure traits that are stable over a long period of time and inappropriate when measuring finite emotional states or anxiety levels. | The strength of this measure of reliability is that it measures the core construct through several variances of the same test item. If equivalent scores are found on multiple forms of the same test item, then the reliability of the test will go up. Moreover, there are wa ys to perform this type of reliability analysis without having the test-taker undergo multiple examinations: internal onsistency estimate of reliability. This type of analysis would save time and money. | Designing these types of measures are time-consuming, expensive, and tiresome for the test-taker who has to take variations of the same test items over and over again. Also, these forms of testing reliability are not dependable for measuring constructs that change over time, such as anxiety levels. Another weakness is that if the tests are taken some time apart, then intervening variables might have an effect on the scores, thereby increasing error variance. Test of Validity| Application and APPROPRIATENESS| Strengths| Weaknesses| Face validity| Face validity is a description of the subjective perception of the test-taker of the test’s validity (Cohen & Swerdlik, 2010). This measure is not so much a quantification of the test’s actual validity, but a measure of the te st-taker’s perception of the test’s validity. Face validity is most appropriate when measuring the test-takers confidence that a test measures what it purports to measure. The strength of face validity is that if the test-taker has confidence in the validity of test, then they are more likely to take the test, and further the test user is more likely to administer the test. Without face validity, the test might be perfectly valid, but it is not administered or taken properly because the user/taker does not have confidence in the test. | The weakness of face validity is that it might not measure actual validity. A test can appear to be valid to the user/taker while also being completely invalid for the construct/time/place of the test.A good example might be the inkblot test. Psychologists that adhere to the psychodynamic perspective of psychopathology would say that the test is perfectly valid for determining personality characteristics, but the test taker might not un derstanding how the test applies to personality development, thereby undermining the face validity of the test. | Content validity| Measures of content validity are most useful in situations a test designer is trying to create test items that match the content of the material being tested (Cohen & Swerdlik, 2010).For instance, a final course exam should test the content area that the course covered. Further, this measure might not be applicable in situations where the skills that the test designer are looking for in the applicant are not currently part of the skill-set of the already employed, such as in cases of new positions. | One of the strengths of content validity is that it can used to work backwards from job responsibilities to job applicant requirements.First, the test designer would examine veteran workers perform their job, and then design an application process that looks for these qualities in a potential employee. The items that are judge essential for the job are the ones that are most advantageous for the applicant to possess. | The downfall of content validity is that the perspective of the material being covered is culturally and chronologically subjective, meaning that the questions can have different answers in different areas of the world or at different times.Therefore, the test items must be culturally and chronologically accurate for the test-takers for content validity to be used. | Criterion related| I know this is personal opinion, but I think that criterion-related validity is the most powerful of all of the methods of verifying validity—especially concurrent validity. This type of validity is used to verify that the criterion that the test score purports to represent is actually in the sample of individuals being tested (Cohen & Swerdlik, 2010).For instance, a group of people who have already been diagnosed with schizophrenia could be tested using a new instruments and if they all score high on the test for schizophrenia, th en the test can be said to have acceptable validity. | One of the strengths of criterion-related validity is that it is a very powerful measure of the actual validity of a test score. This type of validity uses methods external to the test itself to verify that the test covers the subject matter and criterion that it purports to cover. This fact alone makes this measure the most objective and verifiable of the measures of validity. A weakness of content validity is that criterion contaminations can occur, which is when the same predictor measure and criterion measure are used. As an example, if the diagnosis of a mental disorder by a panel of diagnosticians is used both as the test criterion and the measure of test validity. | Construct| Construct validity is the umbrella under which all of the other sub-types of validity fall (Cohen & Swerdlik, 2010). Construct validity is appropriate to use in cases where a test is trying to measure some underlying construct, such as intelligence or anxiety.I suppose this measure of validity might not be appropriate in situations where there is not one clear construct that is being measured, such as generalized achievement tests. | One of the main strengths of construct validity is that the procedures used to verify underlying constructs follow the edicts of the scientific method. A hypothesis is formulated, predicting that if someone possesses in great quantity the construct of intelligences—as verified through other measures—then they will score high on a test purporting to measure intelligence.In this way, a predictions is made based on scientific facts and then the test is used to determine if the prediction holds true. If it does not, then the test items, predictions, or underlying construct might need to be revised. | The downfall of this measure of validity is that if there is not one clear construct or if the construct is vaguely defined, then the validity of the test score is not measurable. So, the va lidity of the test rests on the underlying construct definition and specificity. |

Physiological Principles for Health and Social Care Essay

The circulatory system is the body’s transport system. It is made up of a group of organs that transport blood throughout the body. The heart pumps the blood and the arteries and veins transport it. Oxygen-rich blood leaves the left side of the heart and enters the biggest artery, called the aorta. The aorta branches into smaller arteries, which then branch into even smaller vessels that travel all over the body. When blood enters the smallest blood vessels, which are calledcapillaries, and are found in body tissue, it gives nutrients and oxygen to the cells and takes in carbon dioxide, water, and waste. The blood, which no longer contains oxygen and nutrients, then goes back to the heart through veins. Veins carry waste products away from cells and bring blood back to the heart , which pumps it to the lungs to pick up oxygen and eliminate waste carbon dioxide. Digestive System The digestive system is made up of organs that break down food into protein, vitamins, minerals, carbohydrates, and fats, which the body needs for energy, growth, and repair. After food is chewed and swallowed, it goes down the esophagus and enters the stomach, where it is further broken down by powerful stomach acids. From the stomach the food travels into the small intestine. This is where your food is broken down into nutrients that can enter the bloodstream through tiny hair-like projections. The excess food that the body doesn’t need or can’t digest is turned into waste and is eliminated from the body. Endocrine System The endocrine system is made up of a group of glands that produce the body’s long-distance messengers, or hormones. Hormones are chemicals that control body functions, such as metabolism, growth, and sexual development. The glands, which include the pituitary gland, thyroid gland, parathyroid glands, adrenal glands, thymus gland, pineal body, pancreas, ovaries, and testes, release hormones directly into the bloodstream, which transports the hormones to organs and tissues throughout the body. Immune System The immune system is our body’s defense system against infections and diseases. Organs, tissues, cells, and cell products work together to respond to dangerous organisms (like viruses or bacteria) and substances that may enter the body from the environment. There are three types of response systems in the immune system: the anatomic response, the inflammatory response, and the immune response. The anatomic response physically prevents threatening substances from entering your body. Examples of the anatomic system include the mucous membranes and the skin. If substances do get by, the inflammatory response goes on attack. The inflammatory system works by excreting the invaders from your body. Sneezing, runny noses, and fever are examples of the inflammatory system at work. Sometimes, even though you don’t feel well while it’s happening, your body is fighting illness. When the inflammatory response fails, the immune response goes to work. This is the central part o f the immune system and is made up of white blood cells, which fight infection by gobbling up antigens. About a quarter of white blood cells, called the lymphocytes, migrate to the lymph nodes and produce antibodies, which fight disease. Lymphatic System The lymphatic system is also a defense system for the body. It filters out organisms that cause disease, produces white blood cells, and generates disease-fighting antibodies. It also distributes fluids and nutrients in the body and drains excess fluids and protein so that tissues do not swell. The lymphatic system is made up of a network of vessels that help circulate body fluids. These vessels carry excess fluid away from the spaces between tissues and organs and return it to the bloodstream. Muscular System The muscular system is made up of tissues that work with the skeletal system to control movement of the body. Some muscles—like the ones in your arms and legs—are voluntary, meaning that you decide when to move them. Other muscles, like the ones in your stomach, heart, intestines and other organs, are involuntary. This means that they are controlled automatically by the nervous system and hormones—you often don’t even realize they’re at work. The body is made up of three types of muscle tissue: skeletal, smooth and cardiac. Each of these has the ability to contract and expand, which allows the body to move and function. Skeletal muscles help the body move. Smooth muscles, which are involuntary, are located inside organs, such as the stomach and intestines. Cardiac muscle is found only in the heart. Its motion is involuntary Nervous System The nervous system is made up of the brain, the spinal cord, and nerves. One of the most important systems in your body, the nervous system is your body’s control system. It sends, receives, and processes nerve impulses throughout the body. These nerve impulses tell your muscles and organs what to do and how to respond to the environment. There are three parts of your nervous system that work together: the central nervous system, the peripheral nervous system, and the autonomic nervous system. The central nervous system consists of the brain and spinal cord. It sends out nerve impulses and analyzes information from the sense organs, which tell your brain about things you see, hear, smell, taste and feel. The peripheral nervous system includes the craniospinal nerves that branch off from the brain and the spinal cord. It carries the nerve impulses from the central nervous system to the muscles and glands. The autonomic nervous system regulates involuntary action, such as heart beat and digestion. Reproductive System The reproductive system allows humans to produce children. Sperm from the male fertilizes the female’s egg, or ovum, in the fallopian tube. The fertilized egg travels from the fallopian tube to the uterus, where the fetus develops over a period of nine months. Respiratory System The respiratory system brings air into the body and removes carbon dioxide. It includes the nose, trachea, and lungs. When you breathe in, air enters your nose or mouth and goes down a long tube called the trachea. The trachea branches into two bronchial tubes, or primary bronchi, which go to the lungs. The primary bronchi branch off into even smaller bronchial tubes, or bronchioles. The bronchioles end in the alveoli, or air sacs. Oxygen follows this path and passes through the walls of the air sacs and blood vessels and enters the blood stream. At the same time, carbon dioxide passes into the lungs and is exhaled. Skeletal System The skeletal system is made up of bones, ligaments and tendons. It shapes the body and protects organs. The skeletal system works with the muscular system to help the body move. Marrow, which is soft, fatty tissue that produces red blood cells, many white blood cells, and other immune system cells, is found inside bones. Urinary System The urinary system eliminates waste from the body, in the form of urine. The kidneys remove waste from the blood. The waste combines with water to form urine. From the kidneys, urine travels down two thin tubes called ureters to the bladder. When the bladder is full, urine is discharged through the urethra.