Will be provided Essay Example | Topics and Well Written Essays - 250 words

Will be provided - Essay Example The task planner is responsible in preparing a simple and accurate task that is easy to interpret. The plan should be clear and precise right from baseline. The objectives of the task should be proper and definite from the onset of the, it would be easier for the managers to note any area of the weakness. Any duty in one way or the other must have its challenges so of the project. In the baselines are clear, it would be easier to notice loopholes. Once the challenge is on board, the project manager can easily amend it to suit the diversity in the implementation environment. The baseline will always remain essential in any plan because, should there be any alterations, the entire life of the work would have hiccups. Although the plan should be elastic to accommodate the changes in the environment, a careful study is of necessity because any slight change on the plan would affect the result of the project. The changes on the course of the action of the plan may inflate of deflate the cost of performing the project, depending on the nature of

Only in America Essay Example for Free

Only in America Essay â€Å"Only in America† was written by Leiber, Stoller, Weill, and Mann (1963) as a song to propagate the American dream. After more than four decades of American dream to own a house, a car, and to have a good-paying job one can see that it is not enough any longer for many ‘new’ Americans. Hard work and determination perhaps were good enough tools to â€Å"take a giant step and reach right up and touch the stars†¦Ã¢â‚¬  four decades ago (that is if you were the right skin color) but not any longer. It does take a genius of Bill Gates and Steve Jobs to become wealthy using their own talents as leverage. Or it takes a sheer luck and some intuition to participate in real estate speculations at exactly the right time. Either, that precludes honest working folks who work their given hours a week and get enough to pay the bills. More (2003) compared such to a drug â€Å"first prescribed to us as children in the form of a fairy tale. † Certainly, it happens for some, for a very few. It does seem that those very few knew exactly what they were doing – either investing into the right stock, buying properties when they still cost in low 100s in California, or get on the tip of the wave of progress, like Bill Gates did. Well, for the few it worked but not for the majority of us. It is not difficult to figure out the reasons. A rational thought would suggest that American government is able to render every citizen rich – not necessarily with the money distribution but with the controlling the purchase power of an average citizen. If to eliminate the political agenda and change the status quo to people-centered market, it is not difficult to see that one carrying President of the country can do so by a) eliminating unnecessary government agencies and departments and b) removing political and financial limitations to the free enterprise. The latter action by itself can be very powerful for business owners not having a need to compensate for the high rents and other costs to run a business will keep their products of low cost. Everything, from energy to communication services, to the infrastructure will cost less, much less as the result. Any business owner understands that selling products by the quantity will bring more financial result than doing so by higher cost and selling by the lesser numbers. As the result, people, even those with meager incomes, will have more purchase power by being able to afford much more than they can do today. That would raise the daily comfort of people. They would become content for their minds would not be preoccupied with the sheer necessities needed by their families. Material things and services, like houses, cars, food, clothes, education needs, health needs should not cost so much of a fortune that people must get into the life-time debt to be able to afford it. If the necessities are met and people do not have a difficult time to find an appropriate for them job, the content should become widespread. As of now, most people live in fear, in fear of loosing their jobs, in fear not being able to pay the mortgage and the car notes, for fear not being able to meet their responsibility to their families. People who live by such fear cannot experience content. I once knew a family, good solid one. He was a teacher working in the same district for over a decade. She worked at the bank. They had a nice house, two cars, good-looking furniture, but could not save enough to pay their financial obligations sooner. They lived a nice life, but in debt. And then, the tragedy stroke. He lost the purpose, feeling stagnated he left to his home country that he came from originally. Looking for happiness, he left his wife and children. To avoid gossip and talk in their community, she moved to another state with 50K dollars that came from his retirement plan. Because she could not afford to continue paying for the house, the house was foreclosed. The same happened with one of the cars. Her credit was in ruin, and now she had to start anew. She was afraid to touch the money, whatever left from moving and initial expenses. After three months, she found a job at the bank. The income was just enough to cover rent and monthly bills. What did happen to such a strong family who used to have everything: each other, nice house, cars, two wonderful kids, and ability to buy things they wanted†¦? One could say they lived American Dream, but did they? Does material things constitute the Dream most people strive to in their lives? It is apparent to me, that people who do not have material comfort around them, whose life is difficult because they have to calculate whether they have enough money to purchase oranges or grapes but cannot afford both, they would think that the end to their means would be living like that couple lived. And yet, my friend, being a nice and decent man felt trapped and not content. Once people obtain the material means around them they soon realize that their American Dream was not fancy cars or bigger homes – it is the opportunity to do what their heart desires: self-expression in the least amount. That would not happen if he had an opportunity to change a job that he was doing for 26 years, or at least to take a year of sabbatical. That would not happen if they were not in debt paying $ 2500 for the house and $ 1000 a month for their two cars. That would not happen if financial obligations did not overload him conflicting with his inner desires. Here, I believe I came to the root of the question whether this great country can give a feeling of being at home. Obviously, having enough income is not enough. Eliminating the need to obtain debts to rise economically perhaps would do for some. To my opinion, however, the concept of American Dream was neither of that: it had nothing to do with the financial part of it. If one looks deeper perhaps it can be seen that the fulfillment of personal dreams through the structure’s support to each family’s happiness can render people happier, and if happy they feel the more at home they would consider the country they live in. When people have to struggle thinking about their family economics and knowing that they cannot change their occupations because the discontinuation of income would bring their family to the financial ruin, they cannot think of their personal development through the change of direction in their life. They grow more and more discontent and discontented people are bitter people, people who can at the brink of a move quit their country and go looking for the happiness elsewhere. In conclusion, more and more people understand that described is not enough to be happy in life, that doing the job for the only purpose to get the money to buy the house and a nice car causes stagnation, and as the result unhappiness and discontent. An opportunity that was promised as a part of all American dream is waning and harder to grasp. That is because people understand more and more that to be called Home, the society must offer something else: as in the promise to personal fulfillment – whatever it be. The idea of a home can be different from different perspectives. Certainly, living in a house with the backyard, driving a brand new car, and having a respectable income can make characteristics of a home for many people who had never had such before. Yet, for others these are not enough for they seek something else, perhaps certain characteristics of the society that increase the degree of their satisfaction from living this life. Yet for others the dream is to become wealthy just to discover (in case if they achieve it) that even that was an illusion. The idea of a home cannot be objectified for it is unique to the subjective perception of every person who lives within the society. References More, M. (2003). Dude, where’s my country? (publisher? ) Jay and the Americans (1963). Only in America. Song written by Leiber, J. , Stoller, M. , Weill, C. , and Mann, B.

Analysis of Genetic Defect that Prevents AIDS :: Biology Gene HIV

Introduction A number of recent studies show overwhelming evidence that there is a genetic factor which presents itself in the human host, and is critical to the ineffectivity of the In Vitro transmission of HIV-1. This genetic factor is an individual defective CKR-5 (also known as "CCR-5") allele containing a 32-base pair deletion in a region of the gene opposite to the second extracellular loop of the receptor. This defect faults the normal expression of the CKR-5 which is the co-receptor for the macrophagic tropic strains of HIV-1. Through a study of 1252 high-risk homosexual men in the Chicago area, indications were that no members of the HIV-infected caucasians were homozygous for the mutation, and the frequency of heterozygotes was 35% lower than in the general population. One percent of the people with Western European decent were found to be homozygous for the defect while about 20% were found to heterozygous. This shows that the 32-base pair deletion of the CKR-5 allele is a very importa nt factor in the HIV-1 transmission and pathogenesis. The 32-base pair deletion and its implications is a new and exciting find in the rhelm of AIDS and HIV research. Every day new findings are being published dealing with the topic. As research progresses, is is possible that one day a genetic cure for this type of HIV infection will be found. Research These findings from experiments conducted in the initial research led to the discovery that HIV-1 needs the coreceptor missing in homozygous individuals to infect CD4+ cells. Finding: CKR-5 transcripts from EU Cells do not encode an active coreceptor. Tests were conducted on human embryonic kidney cells infected with CD4 and CKR-5 expression vectors. The vectors were then derived and rendered inactive instead of producing vectors that monitored the entry of the macrophagic-tropic virus form. Finding: EU CKR-5 RNA contains a 32-base coding sequence deletion. A nucleotide sequence of the EU2, EU3, and a normal donor were analyzed by a set of primers. The 32-base pair deletion was found in the EU2 and EU3 individuals. Finding: A defective CKR-5 is encoded in the genomic DNA and is inherited. The firsts tests conducted were aimed at determining if the deletion was inherited or a mutation. The presence of the CKR-5 allele indicated that the deletion was in the genomic DNA and that it was not sex-linked. Finding: The EU2 and EU3 individuals were homozygous for the CKR-5 deletion. The previous analysis suggested that the deletion was either homozygous or heterozygous.

Pros and Cons School Uniforms Essay

In the many schools around the world, whether it being public or private, to elementary to high schools, no matter what kind of schools, they are all eligible for acquiring school uniforms. School uniforms can have a positive impact on the school by changing the factors that cause problems among the students. By having school uniforms mandatory, many changes of a student’s behavior can change. For example, when students are obligated to wear uniforms, they would have better attendance and less verbal abuse with other classmates. But on the other hand, it can also have a negative impacts on a student’s individuality and esteem which can affect their emotion and atmosphere around school. It is a great idea to implement a system on school uniforms because of the positive outcomes that are received. Some of the good outputs that are better grades, little to no harassments, better a attendance record, and more as well. To start of with the positive effects of school uniforms, one of the advantages to wearing school uniforms, is that it can contribute to improved attendance. In the morning, children have a hard time waking up due to the earliness in which they are obligated to do so. This focus can be reached towards the females. This really makes an impact on girls. Girls spend more time than guys on apparel. Girls have more sense of details when it comes to fashion and find it more important to boost their self-esteem. This can be time consuming in the morning if they do not wake up early enough to plan out their outfits. In my experience, every morning I spend at least twenty minutes or more on picking out clothes I would wear to school. It is because, I have such a variety of clothing that makes it hard to choose from what I want. Since girls have vast amounts of clothing than guys, it makes it harder to choose outfits in the morning, therefore time has collapsed when it could have been used to eat breakfast or get onto the bus for school. In Long Beach Unified School District, located in Long Beach California, have seen improvement in school attendance. The district has school uniforms mandatory for the children who attend the schools in the Long Beach district. The elementary schools in the district, have exceeded successful attendance. The percentage of improved attendance has increased up to 94.8 percent since 1994, and as years has passed by until now, the uniforms has been almost fulfilled almost perfect attendance. It didn’t start out with the whole district acquiring school uniforms. It all started from one elementary school using the apparel. When the school started gaining great attendance, other schools in the same district thought it would reach great potential for their school. As you can see, when your outfits are planned each day without having to think about it, you can save time each morning. It will take as little as five minutes to put on the unif orm, thus preventing tardies and giving improved attendance. Second of all, by involving school uniforms into the system, it can help prevent drama, harassment, and verbal abuse, and sexual offense among the student body. In the Long Beach district, it was proven that assault in grades, kindergarten through eighth grades was dropped down eighty-five percent. Fighting has also been be dropped by thirty-eight percent. Sex offenses has declined by ninety-six percent. All the reduction to improved behavior of students, come from the school uniforms. When people have the right to choose their own clothing, they show how they want to express themselves. The individuality of students differentiate between each student, and not everyone will like everybody else’s clothing. Other students will often pick on each other, especially the younger group of children, will humor themselves because of other children’s appearances. Not everybody has the kindness and altruistic inside them, which can cause them to do unsympathetic actions that can h urt one another. Verbal abuse can cause hurt feelings, when it has to do with their own originality. A student’s expression through their clothes can help build confidence in themselves until someone turns them down because they do not like the clothing. Some clothing to others, make people vulnerable to harass students by bullying as well. By the clothing they wear, it can also show their personality. Sexual offenses have also been reduced because school uniforms can make people less attractive. With the proper clothing, such as tucked in shirts, to slacks and khakis, there will be less exposed skin. Males tend to often get attracted and urge to harass females that have that kind of appearance. With the help of school uniforms, everybody will look the same, so it would be harder to tease or abuse other children in school. Another positive aspect of school uniforms, less criminal activities take place. Stolen items, especially clothing, are caused by the jealousy of others. Not everybody can get what they desire in clothing because of the expenses. When people do not have the diligence to go out and purchase their own belongings, stolen items will occur. Many people will own some of the fanciest apparel that can catch many eyes, and a majority of that group probably cannot afford it. Clothes can be easily taken from lockers, and students know how to hack into lockers of students, especially during gym class. When students have a gym class, they are required to change out of their casual clothing, into gym clothes that are required for activities that take place during gym such as running, sports, and more that can cause students to sweat large amounts, and that would be very uncomfortable to do with jeans and other hard-to-move-in clothing. It is much easier to rob clothing during gym periods because t he locker rooms are not guarded or watched by anybody most of the time.When people know the fact that the locker rooms are unattended, that gives kids great opportunities to snatch whatever they can get. Another decline in criminal activities, are gangs. The clothing of how people express how they are and how their personality can show through their clothing. With the violent looking apparel, it can really contribute to one’s action. It is most likely, that with the people without the disciplined clothing, do not have a strong bond with the family that could really make a difference to them. With the lack of family orientation, kids will follow under the influence that others will do as well as clothing. With the ability of actions of what gangs can do, it can create a bad atmosphere in the school with vandalism and theft as well. School property could be damaged and abused by gangs. Once uniforms becomes a policy into the school system, parents would get involved with their children because of the purchasing of the uniforms. The reduction of all these incidents has reduced sixty-nine percent. It could help parents connect with their children by getting them involved with their education. Once parents can see the difference when school uniforms are being used in the school, they could show more appreciation for the kids, by having their kids go to school above the influence. Criminal activity can decline with school uniforms, maybe not at its full potential, but with the help of the school clothing it can make a difference by disciplining children to produce a better community in the school. Furthermore, school uniforms can present improvement in students academically. With the distractions of what clothing can do, it can disrupt student’s education. The distraction of everybody’s individuality, everybody will have different expression of clothing, which can take mind off of classwork and homework. This can be a big deal for females. Society has made an impact of the minds that dressing nice to school can make you look favored and desired to attract others for attention. Females may take up their studying time to go shopping that can take hours looking for the clothes that can make them look attractive. This can happen several times in a week or month, and most of that time could have been made up with studying to prepare for tests that makes up a majority of a grade in a class. Females may even take the time to make others jealous or to attract a certain someone they would want to amuse. Even on the other side, males could be distracted as well. Males can be distracted by the females with their overexposed outfits. When females show too much skin, males will have the urge to take a glance or check. This can often have males focus on girls rather than their education. In a survey, teachers have believed that kids are pressured on other students as well to getting name brand clothing so they could be accepted. Ninety percent of the teacher population in Long Beach district has believed so. This is very common for kids in schools, and the distractions should be eliminated. Incorporating assigned school apparel into the school, females can spend less time shopping and browsing for clothes that they would want to wear everyday at school. To add on to the productive reasonings, school uniforms can also improve student’s behavior. From what was stated above, all of that contributes to all individuals at schools to upgrade their manners and actions. Their behavior in school has gotten students to focus more in their education. Many factors can supply for the positive attitude that people can have with school uniforms. Without the violence, distractions, harassment, and other types of influences that are negative. Teachers believe that it it can help students become more mature by ninety-five percent. By raising the maturity level, it can bring less problems to the school making it run smoothly. Having a positive attitude in school can also reduce the trouble that students get into. For example, all the fights, vandalizing, or any other actions students can make can lead them a path to suspensions. Suspensions are caused by the negative attitudes students tend to have. Suspension rates have been dropped by ninety percent. The actions they do to create a problem to get suspended can really depend on how you think and how positive it can be. A positive behavior in school can save trouble, and school uniforms can really contribute to this conclusion. On the other hand, school uniforms can be kind of a down turn as well. The major con to school uniforms, is that can hinder and stifle individual’s self expression and creativity they could show in their clothes. Although it can raise the best in students such as achieving better grades, creating less drama within the students, or even reducing the violence that take place during school. Students do not find school uniforms attractive and most likely, they will not find the uniforms attractive. School uniforms never seem to look attractive anyways. The main point is, that it can limit to showing their self identity and that is important to many of the students out there because this is also how people can find their friends. When people can see other people’s clothing, they can make general infer to see if they are compatible to be friends. Another reason being, when people can show their individuality, it can boost peoples’ happiness by a lot, and that can very much change a person’s mood. Most people can picture having to pick their own clothing as art because you can choose what clothing can go together to make a certain outfit unique that could fulfill your desire. Parents like how they can see that their kids can express themselves through clothing because it can help them understand how they feel from day to day. When people can express through their clothing you can tell how they are feeling. Most of the time, if kids dress nice all the time, they usually would have a high spirit with joy to going to school. Then if suddenly they dress the opposite sometimes, you can probably get a lot of things out of it. You can probably see that their mood affected how they chose their outfits. Seeing how everybody expresses themselves, can also show that they also have a little freedom in school since they are trapped all day from school. Student’s need some type of liberty while attending school to balance with the strict rules that a school can have. With this type of freedom by expressing yourself through clothing can have a big effect on how you act upon yourself in a positive way. Second thought to the negative side is that school uniforms can get pricey. The school, or someone in the community would have to design the uniforms and assign them to each student in the school. Everybody in the school do not own the same amount of money, so this can be trouble to some families out there. Some families out there would not have a problem paying for several uniforms to wear each day of the week. Each uniform can be expensive enough just for one uniform, but to multiply it by however many days there are in a week can add up to a pretty high number. Other families may not be able to afford it. This may create a problem to certain families without the money to be able to purchase the uniforms. The student’s parents may have to work extra, but other things may get in the way to prevent the opportunity to gain more money. With this problem, when a school does not have school uniforms, some families can save a lot of money by buying cheaper clothes for their childre n, and use their money on other important things like food, books, or anything else that may be important. Having uniforms in school, especially if they are adding it now and never did from the beginning, can cause a lot of money problems to some families out there. School uniforms can also cause a bad reputation for the school that they are attending. Not all students will often behave with the changes of clothes, so they will end up to trouble. Whether it being before school, during lunch, or after school when they are able to leave the campus, they have their uniforms on. Going out into the public with your uniform will let others know what school you attend. If students are out caught doing something repulsive or anything unacceptable, this can give the school a bad reputation. This will also cause the prevention of parents wanting to enroll their own kids into that school. When a school has a bad reputation due to their student’s behavior and actions, less people will want their children attending the school, and even students from that school will leave and attend another school with a good reputation to get a better education. School uniforms can very much make a difference. When a school has school uniforms, students must be at their all time best behavior when they are off campus. They must be able to represent their school in a positive way, so that the school can get credited for the excellent behavior, and draw in students who would be attending the school in the future. Although school uniforms may have negative features to a students life in school, they are able to change their actions to prevent the negative features. Eliminating a person’s individuality isn’t always true, because there are weekends when students do not attend school, and that is when they can compensate for their right to being able to express their individuality and creativity. The important thing is that students are preparing their futures that could benefit them. With the high grades, to studying, and with less distractions, students can go to school with a purpose. Less competition between others will create an environment in which all students can become a greater person. School uniforms can very much discipline students into having a better and positive attitude and that can contribute for a much better future they could achieve.

tories, fairytales and myths

Stories, fairytales and myths that were created thousand years ago are relevant today. These folklores have provided the basis for some cultures and in some cultures is a way of life. Stories and fairytales are relevant today, because they often have hidden meanings, which are often times used as examples in everyday life.Take for instance the story of the Tortoise and the Hare, this story shows that being big and strong does not help you to win, but using your wits and your brain is what helps you to overcome certain things. It also teaches us today, that slow and steady won the race and it never pays to be in a hurry and brag about how good you are.The story of Cinderella is relevant to today’s society as, you still have a lot of Cinderalla’s around. Especially the part about the wicked stepmother and how her siblings treated her. This story of Cinderella is all too real within our present day society, and it is up to us to rescue the Cinderalla’s of our time.G reek mythologies are very important and relevant to today’s society. From the story of Pandora we have the concept of beautiful evil, which is still prevalent in our society. Pandora was the image of a perfect, beautiful woman, she was created to please the eye and deceive mankind.This idea of a ‘beautiful evil' is still present in today's society. In the mass media viewers are constantly bombarded with images of beautiful women in sexual roles and evil roles.Women are often portrayed as gifts to men and then become detrimental to them. This ‘good girl gone bad' image has its roots in Pandora's myth. Pandora was a perfect, beautiful woman when Epimetheus took her as his wife. But Pandora was a little too curious. Her weakness and inferior mind led her to open the container and release all of the evils onto mankind.Stories today form the basis of many cultures, as stories in some cultures are handed down from generation to generation, to teach life lessons and illu strate the folly of mankind. Often time’s stories are used as references and examples, when disciplining a troublesome child or are used as a way to inform a person of the consequences of their actions. An example of this is the story of the Boy Who Cried Wolf. This little boy cried wolf so many times that he was not believed when the wolf actually came and took the sheep.This serves as a lesson to would be liars, children and even adults who like to play pranks. The moral of the story is that, sometimes when you lie or make things up a lot, it is very hard for anyone to believe you. In the end the young boy learned his lesson.Some people argue that stories, fairytales and myths are rubbish and have no relevance in today’s society, but in my opinion, they do give relevance to the meaning of life, and what it is to love and live. You can live and not be happy. Fairytales especially, the ones like Cinderella make you believe in happy endings. Happy endings still exist to day, regardless of what people think.The story of Hansel and Gretel has a moral to it, that appearances are deceiving. This is very true in today’s society. Appearances among people are very deceiving and often times, you get trapped by the very person that seems to want to help you, only to destroy or try to destroy you in the end.To me the fairytale of Hansel and Gretel speak of caution and cautions people to beware of who they are around. I also think that Hansel and Gretel is a great story for teaching children not to trust strangers and to be aware of the people they are around. In conclusion, stories, fairytales, and myths are just as relevant a today as they were thousands of years ago.Works CitedTyree, R. (1998). Pandora. Retrieved April 15, 2008, from http://www.arthistory.sbc.edu/imageswomen/papers/tyreepandora/pandora.html   

Piaget Essays - Child Development, Cognitive Psychology, Free Essays

Piaget Essays - Child Development, Cognitive Psychology, Free Essays Piaget Mark Shaffer 2/29/00 Jean Piaget Jean Piaget grew up in a quiet region of French Switzerland. His father was a professor and his mother was a Calvinist. In 1918 Piaget earned a doctorate in zoology and started studying psychoanalysis. In 1920 he moved to Paris to study children's intelligence. He was fascinated with the way a child's mind works. He moved back to Switzerland to watch and observe children. Piaget did not think of children as being wrong, he thought of them as thinking in a different way. (www.pathfinder.com/time100/scientist/profile/piaget.html) Piaget was a constructivist. He believed that knowledge was not preformed and it was always being constructed and developed with interaction with reality. (www.pathfinder.com/time100/scientist/profile/piaget.html) He also found that a child's logic and ways of thinking are different from adults. His research centered around one question: how does knowledge grow? The way he answered it was, the growth of knowledge is a progressive construction of logically embedded structures superseding one another by a process of inclusion of lower less powerful logical means into higher and more powerful ones up to adulthood. (www.unige.ch/piaget/biog.html) He called this study of the development of knowledge genetic epistemology. He said that everyone, no-matter how young or old, has skills that help him or her gain knowledge. He called these skills schemas. (www.ship.edu/cgboeree/piaget.html) Piaget had four basic stages in his developmental theory. First is the sensorimotor stage. This stage lasts from birth to about two years old. The infant uses his five senses and his motor ability to understand the world and to develop skills or schemas. Before the end of this stage the child is able to pretend and has mental representation of objects. (www.ship.edu/cgboeree/piaget.html) Piaget's second stage was called the preoperational stage. This lasts from about two to seven years old. In this stage the child develops the use of symbols. For example when a child sees the word dog he or she knows what that word stands for. They also develop an understanding of the past and future. While in this stage, the child sees things from one point of view. They think that everything happens or is there because of them. They might say that the carpet is soft so when they fall they won't get hurt. (www.ship.edu/cgboeree/piaget.html) In the third stage, called concrete operations stage, the child begins to be able to classify. They will be able to put things in order from biggest to smallest or by color. They also develop the idea of conservation. This means that the child will be able to tell that quantity is the same no matter what shape it takes. For example when there are four marbles lined up and four scattered in another area the child will be able to tell that there is the same amount in both areas. The concrete operations stage lasts from about seven to eleven years of age. (www.ship.edu/cgboeree/piaget.html) Piaget's last stage is the called formal operations stage, and starts at about twelve years old. This stage involves using logical operations in an abstract way. This is also referred to as hypothetical thinking. This stage involves things like the formation of a hypothesis and the elimination of a hypothesis to solve problems or questions. (www.ship.edu/cgboeree/piaget.html) In physical education it is important to know how your children think. A physical educator can not make their lesson too complicated for the child to understand. This is especially true at the elementary level. If the child does not understand what is being taught then the child will not put forth any effort and may be turned off of physical activity. At the very beginning of a child's schooling he or she is still in the preoperational stage. Therefor it would not be a good idea to try to incorporate logic or the use of conservation into the lesson. A child at that age should be taught physical education in a way that will be easily understood. It should center on the use of symbols and basic physical skills such as running, jumping and throwing. Bibliography 1. www.ship.edu/cgboeree/piaget.html 2. www.unique.ch/piaget/biog.html 3. www.pathfinder.com/time100/scientist/profile/piaget.html

French Expressions With Un Tour

French Expressions With Un Tour The French word tour has different meanings depending on whether its masculine or feminine, and both words are found in idiomatic expressions. Learn how to say acrobatics, to play a trick on someone, Bobs your uncle and more with this list of expressions using  un tour. Using une tour, which is the feminine form of the word, you can learn how to say drilling rig, ivory tower, as big as a house and other idiomatic French expressions. Possible Meanings of Un Tour tourtripoutingcontour, outlinefeat, stunt, trickhatchlathemeasurement, girth(game) turn(situation or conversation) turn, twist(wheel) rotation, revolution, turn Possible Meanings ofUne Tour towersiege towerhigh-rise building(chess) castle, rook Expressions With Un Tour un tour dadresse   skillful feat/trickles tours dagilità ©   acrobaticsun tour de cartes   card trickun tour de chauffe   warm-up lap, practice runun tour pendable a  dirty trickun tour de chant   song recitalun tour de cochon (informal) dirty/mean trickun tour de cou   choker, collar neck measurementun tour de force   feat of strength amazing featle Tour de France   tour de France (cycling competition)le tour de garde   tour of dutyle tour dhonneur (sports) lap of honorle tour dhorizon   review, survey (of a situation)un tour de lit   valancele tour de main   dexterityun tour de passe-passe   conjouring trickun tour de passe-passe financier   financial sleight-of-handun tour de phrase   turn of phraseun tour de piste   lapun tour de reins   strained backun tour de salaud (familiar) nasty trickun tour de scrutin   ballotun tour de table   group discussion (finance) capital structurele tour de ville   city tourun tour de vis   turn of a screwun tour de vis fiscal   tax squeezeun tour de vis militaire/politique   military/political crackdownle premier/second tour (politics, sports) the first/second roundun quart de tour   quarter turnun rà ©gime de ___ tours (minute)   (motor, engine) ___ RPM (revolutions per minute)un sale tour a  dirty/mean tricktour tour   in turn, by turns, alternatelyun 33 tours   (record, album) LPun 45 tours   (record, album) singleun 78 tours   (record, album) 78acquà ©rir un tour de main   to pick up a knackattendre son tour   to wait ones turnavoir plus dun tour dans son sac   to have more than one trick up ones sleeveavoir un tour de main   to have a knackfaire demi-tour (figurative) to make a U-turn, do an about-facefaire le tour de   (place) to go around, look around, explore / (idea, possibility) to explore / (problem) to consider all anglesfaire le tour du cadran   to go around the clockfaire un demi-tour  Ã‚  to do a U-turn, an about-turnfaire u n tour de chevaux de bois   to ride a merry-go-roundfaire chacun son tour   to each do (something) in turn, to take turnsfaire un tour dEurope, de France   to tour Europe, Francefaire le tour des invità ©s   to do the rounds of the guestsfaire un tour de manà ¨ge   to ride a merry-go-roundfaire le tour du monde   to go around the worldfaire un tour pied   to go for a walkfaire un tour quelquun   to play a trick on someonefaire des tours et des dà ©tours   to meander, wind in and out, twist and turnfermer une porte double tour   to double-lock a doorjouer un tour quelquun   to play a trick on someoneparler son tour   to speak in turnparler chacun son tour   to each speak in turnpasser son tour   to miss ones turnperdre son tour   to lose ones turnprendre son tour   to take ones turn qui le tour  ?   Whose turn is it? tour de bras   with all ones strength/might tour de rà ´le   in turn, alternately ton / votre tour (de jouer)   Its your turnCest reparti pour un tour  ! (informal) Here we go again!Cest un tour prendre.   Its just a knack you pick up.Cest ton / votre tour   Its your turnChacun son tour  !   Wait your turn!en un tour de main   in no time at all / prolifically / with a vengeanceEt le tour est jouà ©Ã‚  !   And there you have it! And Bobs your uncle!Je lui rà ©serve un tour ma faà §on  !   Ill get him back in my own way!On en a vite fait le tour   (place) Theres not much to see / (book, idea) Theres not much to it / (person) Theres not much to him/herSi on faisait le tour  ?   Shall we walk around it?Votre tour viendra   Your turn will come Expressions With Une Tour la tour de Babel   tower of Babella tour de contrà ´le  (aviation) control towerla tour Eiffel   Eiffel Towerla tour de forage   drilling rigla tour de  guet   watch tower, look-out towerla tour  hertzienne   radio mastla tour de  lhorloge   clock towerla tour  divoire   ivory towerla tour de Londres   tower of Londonla tour  dune  mosquà ©e   minaretla tour de Pise   Leaning Tower of PisaCest une vraie tour   S/hes as big as a houseà ªtre  gros  comme  une  tour, à ªtre massif  comme  une  tour   to be as big as a house, to be very fat

High School Finals vs. College Finals

High School Finals vs. College Finals Finals are the most pleasant time of the year with all of those books and lecture notes, sleepless nights and gallons of coffee. Okay, we are kidding! Who in the world loves finals? However, even if you are in high school and hate finals, it doesnt mean that you dont want to be mentally prepared for final sessions which await you in college. Or, maybe you are already a college student and want to refresh high school finals in your memory to complain that those kids from high school dont know yet how lucky they are. So, what are the main differences between high school finals and college finals? Which are harder? We have prepared a comparative list just for curious guys like you. High School Finals A lot of college students say that high school finals are childs play. They are much easier and less stressful than the finals in college. We dont mean that finals in high school are as easy as pie. But they are not that big deal. Usually, your tests in high school worth about 15% of the grade and contain only the information that you were studying in class. Surely, they require preparation and  reviewing the materials. You might also need to do online tests and quizzes or study with your friend using question cards. Eat well, have enough sleep, look through your notes before the test and dont panic too much – these are the basic tips for every high school student who wants to pass finals successfully. But if you think that high school finals are the most intense time you experience during academic studying, then we, actually, should tell you the bad news. College finals are nothing like high school ones. College Finals College classes might cover certain materials which you have already studied in high school. For example, a certain book, a poem or historical events. But the approach to studying is very different in college. It requires in-depth research and analysis. Thats why its not surprising that you have to conduct a lot of research while doing college homework. In class, you are provided with essential basis – a skeleton that allows you to build your knowledge around it. Your motivation and your aspiration are the main factors which define your ability to pass the test. So, examining scholarly sources recommended by your professor is not just an option – its â€Å"a must† for you. Otherwise, you wont be able to pass the test. A pro tip: If you are looking for other tips for improving your grades, check out our advice on how you can become an A-level student. The Importance College finals are all about hard work. You can see hundreds of half-asleep students walking around the campus during this period. Grades for finals make 50% of your final grade which causes extra pressure. Final tests are also about managing your schedule as its hard to study well and have part-time job, social life, and hobbies. So, its not surprising that the words â€Å"college finals week† can be found in a student vocabulary somewhere in between â€Å"apocalypse† and â€Å"insomnia.† How to Survive Finals Week So, are there any chances to survive through the college finals week and keep your sanity? Of course, there are. Many students successfully pass their tests if they put enough effort into studying through the semester or if studying hard right before the finals. If you are a college student, then you probably know what the main things that a student needs throughout the finals and a dead week are – something that can be called a college finals survival kit. Basically, such a kit should contain: Stickers, markers, and bookmarks – because you have to look through millions of pages and need to mark the most important things. Candies, cookies, and chocolate bars – because you need to boost your brain activity and reduce stress with sugar or some healthy energy booster food. Energy drinks and coffee – because you will need to spend a lot of time studying and not falling asleep. Caution: be careful with caffeine as its not completely safe.    By the way, the worst thing you can do is pulling all-nighters as this way you will just waste your time. When you are stressed and asleep, especially if studying for too long, your brain cant perceive and remember information properly. That means that you will spend these sleepless nights in vain. Summarizing: The Key Differences So, lets take a look at the key differences between high school and college finals. The Value Finals in high school make up to 15% of your grade, thats why they wont define the final score as much as tasks you completed throughout the studying year. College finals, in their turn, make up to 50% of the grade which causes much pressure, as you can fail the course only because of an unlucky day. The Place for Studying As a high school student, you probably wonder why so many college students prefer having studying sessions in the library? Thats because they need a quiet place that can get them into the right mood to have long studying sessions without being distracted by different factors like noisy roommates. High school students usually study for their tests at home or in places like a buffet, park, etc. The Materials When studying for high school finals, you usually just have to look through the notes you wrote down in class. College students usually can be spotted with tons of books around them and browsing through articles and other sources on the internet. The Difficulty High school finals usually contain predictable questions that you can prepare beforehand. In college, the difficulty of the questions depends on the professors decision only. So, be sure to avoid spoiling your relationship with your professor if you want to pass your college exams. So, these were the main differences between high school and college exams. If you are curious about what other differences between high school and college are, check out our article! Have something to add? Just let us know!

Impact of Motivation and Determination on Professional Sales Essay

Impact of Motivation and Determination on Professional Sales - Essay Example An individual needs to sell a product or a service to the customers, by convincing them of its value and features and how it can help them improve their lives. Although it may seem to be quite simple, its execution can be quite difficult depending on the nature of the products or service being pitched and the mental setup of the customers. Typically, the customers are quite sceptical towards a sales pitch and try to avoid a salesman, which even makes it difficult for them to sell their product. Such challenges bring occasional failure for a salesman and can easily de-motivate him to leave this line of work. However, in order to succeed in the field of professional sales, one must be sincere and self-motivated to push his way against all odds (Pinder, 269). The movie depicted that Christopher had been pushed down by a series of unavoidable consequences that forced him and his son to spend the night in a public toilet at a train station. Despite all odds, he never lost hope on life and kept pushing till he achieved what he wanted. Christopher showed sheer determination to work his way to turn around his life. In scenarios like this, self-motivation played a major role in one’s performance in his professional and personal life. In a profession of a sales individual, failure is quite common where he faces rejection from customers, pressure from supervisors and fear of losing his job. These factors negatively influence their life and often lead to depression and poor professional performance.

Marketing Essay Example | Topics and Well Written Essays - 1250 words - 17

Marketing - Essay Example These strategies are divided broadly into strategic scope and strategic strength. 2 A strategic scope relates to the demand of the products or the services that the company deals in and it focuses on the demand size and the component of the market. Strategic strength focuses on the supply of the products or services. Porter then came up with three strategies that reduced the broadness and the ambiguity of the previous strategies; these strategies included cost leadership, differentiation and market segmentation. The three strategies are drawn in a cube with the focus strategy being in the narrow segment and the other two being relatively broad.3 According to Porter, companies that gain a competitive advantage are those that strive to combine the three strategies effectively. Market segmentation can be combined with the differentiation strategy and ripe the company very effective results. Combinations of the strategies that are grouped in the broad category of the cube are a bit difficult to combine but that does not mean that they do not take place. Segmenting the market into niches helps the company to scope itself, increase the concept of demand and increase the company’s market share. Market segments also affect the strategies that relate to innovation and give the company the edge technology. This is because reducing the size of the market gives the company the specialization of the market and therefore, a chance to concentrate on aspects of improved technology. This presents the company as the pioneers of innovation. A multi-dimensional approach is a kind of approach where the company incorporates all the variables of market segmentation in coming up with its niches. These variables are broadly divided into; geographic variables, demographic variables, psychographic variables and behavioral variables.4 2.1 Geographic Variables – this is the

Cyber Security in Business Organizations Case Study - 1

Cyber Security in Business Organizations - Case Study Example However, Target had half a year prior to that installed malware detection systems from the FEYE computer security firm (a very reputable provider with equally renowned clients, such as the Pentagon and the CIA). Target had an expert team at Bangalore to monitor the system securities at all times. In any event of suspicion or malicious activity concerning system security, this monitoring group immediately informs the Minneapolis security operations center. On Saturday 30th November, when the hackers were putting in place the escape route of the data that was to be stolen, installed FEYE system spotted the malicious activity and the Bangalore team conveyed the sensitive information to the Minneapolis group, as was the stipulated protocol. However, the Minneapolis team failed to respond to the red flag from Bangalore, and the theft of over forty million credit card numbers eventually occurred (Riley, Elgin, Lawrence & Matlack, 2014, March 13). The reasons why this warning was not acted upon are not clear at the moment, amidst a plethora of speculation and on-going investigation. I believe the main reasons why the red flag was ignored were chiefly negligence concocted with a lazy hubris from the assumption that the security system that had detected the malware in the first place would inevitably also halt any such attempts on its own. Perhaps they wrongly assumed that the system could not be hacked into as a result of the technology they had in place, confident that such attempts were feeble and futile. This is a recurrent failure of most cyber security personnel (Augastine, 2007). According to the email statement issued by Gregg Steinhafel (the chairman, president and CEO of Target), Target had, in the wake of the hack, performed a thorough review of its employees, technology and processes so that they are better placed to improve their system security and gain valuable lessons from the unpalatable event. This is actively

Ex-Offenders Transitioning Back into Society Research Paper

Ex-Offenders Transitioning Back into Society - Research Paper Example This essay asks that is once a criminal always be a criminal? Are there no chances left for a criminal to reform and lead a normal life? These are the questions faced by the society today. America has only 5 percent of the global population and yet 25 percent of the world’s prison population. America has 2.3 million prisoners behind bars and 5.1 million people on parole. A teaming population of 9 million ex-prisoners are reentering the American society every year. These people have already â€Å"paid their debt to the society† for committing crime and now it is society’s turn to provide them a chance to earn for their livelihood, lead normal life and become good citizens. This paper makes a conclusion that ex-prisoners form a sizeable population of workforce and their inclusion in the job market will give a fillip to the nation’s economy which is under strain. If the opportunities for employment and the other supports are denied to them, nearly half the number of ex-prisoners may return to prisons which will cost heavily on tax payers money and national exchequer. The staggering cost of maintaining prisons and prisoners have already touched $49 billion and if this allowed to increase it will add another $25 billion by the end of 2011.The nation cannot afford to spend $65000 per prisoner which can rather be spent on welfare measures of ex-prisoners and on creating employment opportunities for them thereby reducing recidivism.

Risk Management Assignment Example | Topics and Well Written Essays - 250 words

Risk Management - Assignment Example It boils down to the fact that individuals and business mangers will always have to make decisions with limited information, in an environment of near uncertainty. Statistical tools like the decision tree can be used to make some comparisons between different courses of action (Module 9, p.2.). All possible choices for a particular project can be listed with probabilities of occurrences of outcomes for each choice. Different scenarios within each outcome are also assigned probabilities. For each choice- outcome- scenario combination, profitability estimates can be made. This will give a rough comparison for profitability for the different choices. Understanding consumer perception of risk will help sellers to formulate appropriate pricing strategies (p.3.). For consumer durables, extended warranty and assurance of prompt service will fetch a higher price. Managers in a privately owned firm can afford to take higher risks with better understanding by the top management. He may go for an option with potential for very high returns, though chances of its occurrence may be very low. Understanding the different types of auctions will help the manger to quote appropriate prices for his products (†¦p.6.). Performance based job security and remuneration will help curb actions aimed at individual advantage and help reduce moral hazard (†¦. P.5.). To overcome the problem of asymmetric and hidden information, techniques of signaling and screening can be employed (p.6.). By making selective offers, customers can be made to reveal their preferences. So, today’s manager is better equipped with tools to analyze available data and make more logical

The Dhammapada Essay Example | Topics and Well Written Essays - 500 words

The Dhammapada - Essay Example He was born in the sixth century of a ruling family in the Himalayan foothills and named Siddhartha. He was brought up in royalty where he was trained to become an heir of the kingdom after his father. These trainings brought a lot of suffering to his life resulting to his escape from pleasures and royal privileges. Siddhartha was not pleased with the continued practice to become a ruler. For this reason, he escaped his royal home spending many days in the forest. His escape was based on a mission to find different ways of acquiring deliverance from all suffering (Batchelor, 21). The Buddha had three main aims in his teachings, which included current human affairs and their welfare, favorable rebirth in the subsequent life, and attainment of ultimate high quality. The last one is divided into two parts, which include establishing happiness and morality does not exhaust its significance in human felicity. These aims show different ways in which man can leave in peace with himself and his fellow men. According to the Buddha teachings, the mind plays an important role in the enhancement of wisdom in the mind. If the mind is not steadfast, wisdom never becomes perfect for all those who are not I favor of good teaching and strong faith. Dhamma offers directions elucidating the factual character of way of life and showing the path that leads to liberation (Palihawadana, 44). The Buddha used different methods and instructions to illustrate different ways to pain freedom. Kamma is a volitional action springing from intention and may manifest itself as speech, deeds, thoughts, desires, and emotions. It helped the people in memorizing the teachings by the Buddha. This is because the willed proceedings a human being performs in the path of his existence may perhaps become forgotten, but once performed they leave memories in the mind. These memories are seeds that are capable of fruition in the future on receiving conditions of ripening. This is in relation with the

Risk Management Assignment Example | Topics and Well Written Essays - 250 words

Risk Management - Assignment Example It boils down to the fact that individuals and business mangers will always have to make decisions with limited information, in an environment of near uncertainty. Statistical tools like the decision tree can be used to make some comparisons between different courses of action (Module 9, p.2.). All possible choices for a particular project can be listed with probabilities of occurrences of outcomes for each choice. Different scenarios within each outcome are also assigned probabilities. For each choice- outcome- scenario combination, profitability estimates can be made. This will give a rough comparison for profitability for the different choices. Understanding consumer perception of risk will help sellers to formulate appropriate pricing strategies (p.3.). For consumer durables, extended warranty and assurance of prompt service will fetch a higher price. Managers in a privately owned firm can afford to take higher risks with better understanding by the top management. He may go for an option with potential for very high returns, though chances of its occurrence may be very low. Understanding the different types of auctions will help the manger to quote appropriate prices for his products (†¦p.6.). Performance based job security and remuneration will help curb actions aimed at individual advantage and help reduce moral hazard (†¦. P.5.). To overcome the problem of asymmetric and hidden information, techniques of signaling and screening can be employed (p.6.). By making selective offers, customers can be made to reveal their preferences. So, today’s manager is better equipped with tools to analyze available data and make more logical

Court cases Essay Example | Topics and Well Written Essays - 500 words

Court cases - Essay Example Frye v United States ruled on in 1933. In this case, Frye was convicted of 2nd degree murder. Attorneys for the defendant proposed an expert witness to testify as to results he discovered using a ‘deception test’, which is similar to modern day lie detector tests. The expert witness elaborated on how blood pressure is monitored by this device. The expert felt that scientific experiments showed that negative emotions, such as fear or anger, produces a rise in blood pressure. The expert then deduced that the same would occur for someone who is lying, since there would be a fear of detection of the lie. It was further reasoned that speaking truth would be natural, and so no emotion such as guilt or fear would enter the picture, and hence no rise in blood pressure. (FRYE V UNITED STATES) The Supreme Court ruled that there is a difference between (1) expert testimony gained through training and lengthy work experience in the field versus (2) expert testimony that is based on experimental research that has not yet gained solid scientific backing in the science community at large. As a result, the proposed testimony of the expert was not upheld as admissible evidence (FRYE V UNITED STATES). The ‘Frye Standard’ thus became a well known basis for future court cases to allow scientific techniques as admissible evidence only if it is already ‘generally accepted’ in the relevant scientific community. The second case is Daubert v Merrell Dow Pharmaceuticals, Inc. (DAUBERT V MERRELL DOW PHARMACEUTICALS, INC) Daubert was a 1993 product liability case where the Supreme Court had to determine what type of scientific evidence is admissible in court. Daubert sued Merrell Dow due to birth defects that occurred in two of their children. The mother was taking the drug Bendectin, which was manufactured by Merrill Dow. Science did not provide a direct link between the drug and any birth defects. Statistical data was proposed as an alternate solution, but

Efficiency Of Municipal Solid Waste Collection Essay Example for Free

Efficiency Of Municipal Solid Waste Collection Essay Solid waste has become an urban issue that gives evidence to the greatly increasing economic activities in the municipalities and poses a challenge thereto. As both an issue and a challenge, it requires a collaboration of efforts from the government and the private citizens of the municipalities. Related issues that would have to be checked and considered as well include the need for a change in the people’s overall lifestyle, their manner of resource consumption and allocation of their increasing income. The socio-economic, legal, health, environmental and cultural aspects of the municipalities would have to be revisited and made to contribute to the solid waste management programs of the government. (Jhaet. al. , 2007). Municipal Solid Waste (MSW) is a type of waste that, in particular, is not carried by water or air. The Federal Government of United States of America defines solid waste as any discarded material that is not excluded (40 CFR 261. 2; Mihelcic and Hutzler, 1999). Therefore, MSW is composed of the degradable, the partially degradable, and the non-degradable wastes. Degradable MSW includes paper, textiles, food wastes, straw and yard wastes; partially degradable waste includes wood and sludge, and non-degradable wastes include leather, plastics, rubber, metal, glass, dust and electronic waste. (Jha et. al. , 2007). The collection and disposal of the domestic wastes – whether degradable or non-degradable – over a period of years over-burdens the landfill. The continuous loading, dumping and subsequent accumulation of garbage all have a long-term effect on the environment (Sharholy et. al. , 2007). Hence, there is a growing awareness of the need to study the negative impact of solid wastes on the environment and human health, particularly in the areas adjoining the landfill sites (Srinivas, 1998). One city in India that is burdened by the dilemma caused by the rising volume of its MSW generation is Chennai. Chennai is the capital of the state of Tamil Nadu and is located at 13. 04 degrees latitude and 80 degrees longitude in Southern India. It is one of the four major metropolitan cities in India – the other three being New Delhi, Mumbai and Kolkata – with a total area coverage of 174 sq km, 19 km in length and 9 km in width (Figure 1) (Chennai Map, 2000). The population in Chennai has reached five million. One of the oldest corporations in India is the Corporation of Chennai, which was established on the 29th of 1688 by the East India Company (COC, 2004). Corporation of Chennai is the civic body that governs the city of Chennai. With the mayor as its head, the Corporation of Chennai has 155 councilors representing the 155 wards of the city. (Wikipedia) To do its mandate, the Corporation of Chennai has various departments attending to their respective duties and tasks. The departments are as follows: the Council Department, the General Administration, the Financial Management Unit, the Land Estate Department, the Revenue Department, the Health Department, the Family Welfare Department, the Education Department, the Parks Play Fields, and the Engineering Departments. The latter, in turn, are namely as follows: the Works Department, the Mechanical Engineering Department, the Electrical Department, the Buildings Department, the Storm Water Drain Department, the Bridges Department, and the Solid Waste Management Department. (COC website) Thus, the Corporation of Chennai is involved in the general upkeep and administration of the city, and the SWM in Chennai is but one of its concerns. The past 20 years has brought in industrial development to Chennai, and with it came both population growth and increased MSW generation (Esaku, 2007). The Corporation of Chennai has divided the area into ten zones for MSW collection and clearing (COC, 2004). The wastes generated by these ten zones are collected by either the Corporation of Chennai or the Neel Metal Fanlca, a private municipal solid waste collection body. The collection system involves getting the garbage through door-to-door visits and the setting up of garbage bins by the roadside in the streets. The collected wastes are transported via heavy mechanical vehicles (HMVs) or light mechanical vehicles (LMVs) to the transfer stations or directly to the city’s two dump sites, namely, the Perungudi and the Kodungaiyur dump sites. These wastes are mostly yet to be segregated; they are predominantly made up of organic and debris wastes (Sharholy, 2008). The segregation of wastes, though, is not effectively achieved in Chennai as a whole. Source or domestic segregation is practiced in a few areas in Chennai. Such practice contributes to the recycling of wastes like paper, plastic and metals. Still, it remains that the major contributors of recycled wastes are the rag pickers who collect wastes from the dumpsites and the municipal bins. Chennai, the fourth largest metropolitan city in India, currently faces the problem of having to efficiently handle and dispose of its growing volume of MSW (Esaku, 2007). The average volume of its generated MSW has increased from 600 tons/day to 3500 tons/day (Esaku, 2007). There has hitherto been no concrete and effective management measure taken to counteract this problem. Chennai is also accounted for having the highest per capita waste generation in India (Sharholy, 2008). The inefficiency of the garbage collection system in Chennai is due to the improper distribution of manpower, the ineffective work force, the incompetent collection methodology, the lack of public awareness and the scarce civic sense among the people. My study focuses on determining whether the allotment of additional manpower and vehicles for MSW collection would improve the efficiency of the garbage collection and disposal system of Chennai. My hypothesis is that proper allocation of manpower and vehicles to each zone, if implemented right by the Corporation of Chennai and the Neel Metal Fanalca, will significantly increase the efficiency of MSW collection and disposal in the city. My study would help the Corporation of Chennai and the Neel Metal Fanalca to improve the MSW collection and disposal in the city of Chennai. The city has been dubbed as â€Å"The City Beautiful† (COC website). To preserve its status as a place of beauty, the city government and its people should then act fast to solve the problems caused by the mounting volume of MSW continuously generated therein.

The Contradictions in Aristotles Nicomachean Ethics Essay -- Philosop

When I think about what makes me happiest in life, I put my family and friends at the top of the list. I know that there is no way I would be who I am today without them. My family loves me and has taught me most of what I know about how to live. Friends have taught me so much more about myself than I could ever have imagined; how to laugh at myself, how to love myself, how to learn from my mistakes, etc. All these people in my life have given me so much and I have in return offered what I have to give. Secondly, I would probably put my knowledge. It is what I need to be able to understand how the world works today and voice my opinion in the community; to benefit myself and teach others. Next on my list, I would put art. It allows an inner, more down-to-earth part of me to be expressed that cannot be done in words. All these things are actions and they define who I am. Without them I don't know what I would do. In Aristotle's Nicomachean Ethics there is emphasis on the importance of action. From action of life, friendship, and happiness (which are voluntary ac...

Three Honrable Pilgrims :: essays research papers

Three Honrable Pilgrims Geoffrey Chaucer was the greatest English poet of his time. Besides William Shakespeare no other writer has surpassed Chaucer's achievements. One of his best unfinished writing, "The Canterbury Tales" rankes as one of the world's best work of literature. In "The Prologue to the Canterbury Tales" Chaucer presents a cross-section of Medieval Society through his discriptions of people representing the court, the church and the common people. In Medieval Society, just like in modern day society, there were people of different moralities. The knight the Parson and the Plowmen are examples of good people who possessed honorable characteristics. The Knight in this pilgrimage is a representative from the Court class which was at the top of Medeval Society. He was wealthly but he didn't want to impress anybody. He truly had all the charactoristics of an ideal knight. As a Christian, he loved thruth and as gentlemen, he believed in chivalry and honor. With so many dishonest people going to Canterbury,or must have been very irritating to deal with them. But "He never yet a barrish thing had said. In all his life to any , come what might ; He was a true, a perfect gentle-knight." He was true to his king and was generous, and courteous. He didn't wear flashy clothes. All he wore was a coarse cloth shirt of cotton and linen. His shirt was stained with dark smudges where his amar had left it's marks . The Knight's motivation to go on this pilgramage is to give thanks to God, because he had survived all of the wars and battles he had fought in. Another honerable pilgrim on this trip was the Parson who is representative of church society. Un like the other religious people on the pilgrimage who claimed lots of earthly posessions, the Parson was a very poor priest. However he was a noble example to the people of his church. He was an honest priest who didn't cheat people out of their money. Although he was poor in money and possessions, he was vary rich in the Christian spirit. He would practice what he preached and would rather give then recive and "who truly knew christ's gospel and would preach it, Devoutly to parishioners,and teach it". When parishioners gave him money he would not accept it. As a follower of Christ he was willing to help his fellow man. The reason he is gtoing on this trip was to pay respect to the

Nfl Revenue Sharing

NFL Revenue Sharing To many the NFL may be considered America’s greatest sports league. The league definitely has the numbers to back up this claim. The ever-growing sport has maintained keen interest from fans all across the world, all the while generating enormous amounts of revenue. Currently the league rakes in close to $9 billion annually. The success of the NFL is something to marvel at. Even in a shaky economy the NFL continues to flourish. What is interesting about the NFL is how the business aspect is structured. TV is the NFL’s biggest source of revenue. 0% of the NFL’s earnings come from TV revenue according to Forbes. The NFL operates in a unique manner regarding its TV generated revenue. The television rights to broadcast NFL games are the most lucrative and expensive rights of any American sport. NFL broadcasts have become among the most-watched programs on American television, and the financial futures of entire networks have depended on owning NFL broadcasting rights. This has raised questions about the dependency of the networks to the sport and whether they can criticize the NFL without the possibility of losing their broadcasting rights and their income.While TV advertising has generally grown slowly in recent years, advertising on NFL games has soared. The Wall Street Journal notes that ad rates for NFL games rose 27% to $347,800 for a 30-second spot last season. So far this fall, NFL games have averaged 17. 8 million viewers at any given minute, more than almost all regularly scheduled programs, according to Nielsen data. Importantly, many of those viewers are young men, who are hard for advertisers to reach through other programs.And the fact that most consumers watch NFL games live is important at a time when many viewers record shows and then skip the commercials when they watch them later. Under the current contract, which began in 2006 and expires in 2013, the top television networks are paying a combined sum of $2 0. 4 billion dollars. CBS ($3. 73B), NBC ($3. 6B) and Fox ($4. 27B) and cable television's ESPN ($8. 8B) are all contributing to a pot that the NFL divides equally among all 32 NFL teams. The revenue generated by television is divided annually. For example, in the year 2010 the NFL received $3. 85 billion from their contracts with CBS, ESPN, FOX, NBC, and DirecTV’s Sunday Ticket. Dividing this amount equally among all 32 NFL teams averages out to $118 million per team. The new contract with the prominent television networks that extends from 2014 to 2022 is going be worth 63% more than the previous contract, according to the Wall Street Journal. Within the article it states that the annual figure for the NFL will increase from previous figure of $3. 785 billion to approximately 6 billion a year because of new TV packages.The Wall Street Journal estimates that the four major networks, CBS, ESPN, FOX, and NBC, are designating nearly a quarter of their total programming budget t o purchasing NFL rights. The fact that there are teams that generate much more interest than others brings about a dilemma that suggests revenue sharing isn’t completely fair. For example, the Dallas Cowboys have a far greater fan base than the Jacksonville Jaguars. Is it fair for the Jacksonville Jaguars to be given the same share of profits from the TV revenue as the Dallas Cowboys? I recently attended an NFL game in the home stadium of the Arizona Cardinals.The away team was the Dallas Cowboys, but from what I witnessed there was an equal to greater amount of Cowboy fans than Cardinal fans within the stadium. If a team such as the Dallas Cowboys maintains a dominant presence within the NFL brand, you could imagine that they would be reluctant to split profits with a team that has a hard time even selling home game tickets. Bill Wanger, the executive vice president of programming and research at Fox Sports Media Group, says the Cowboys are among a handful of â€Å"national -appeal teams† that draw huge TV ratings no matter what market they're broadcast in.Neilson Co. completed a recent popularity survey based on local and national television ratings, the amount of traffic the teams’ official websites draw, and how many times the teams are mentioned on the internet. According to the survey the Dallas Cowboys, Pittsburgh Steelers, New York Giants, Chicago Bears, and Green Bay Packers were the top 5 most popular teams, respectively. When any one of these teams play they will attract far more viewers than teams nearing the bottom of the popularity poll.These teams contribute far more interest to the NFL brand, but take home the same check as the other low-profile franchises. Depending on the franchise that you own, you could be benefitting from the popularity of the other teams, or uneasy with the way the money is being distributed throughout the league. As a league, I believe the NFL is doing the right thing. The revenue distribution helps t he less popular teams maintain financial success and longevity. The league has a responsibility toward owners to operate in a manner that assists all eams in prolonging their brand and providing an equal field of play for competition. In contrast to other sporting leagues such as the MLB, the NFL has salary caps and other restrictions that prolong smaller market franchises and allow them to be financially competitive. For example the Pittsburgh Steelers have won the most Super Bowls despite being from a relatively small market, but the Pittsburgh Pirates struggle to compete against the fiscally empowered New York Yankees. The unique approach by the NFL creates a more competitive environment and fosters a sense of hope for fans every season.

Relationship between pressure and volume Essay

Questions – According to the result of the experiment, the relationship between variables such as volume and pressure was inversely related. However, the graph that showed the relationship between 1/volume and the pressure was directly related. – Gas law was defined by many scientists. However, the relationship between volume and pressure was proved by Boyle who made Boyle’s laws which defined pressure and volume are inversely proportional. If the pressure goes up, the volume will go down and vice versa. However, if we put the volume inversely, then the relationship between pressure and the inversed volume will be changed into directly proportional. – KMT (Kinetic molecular theory) helps to explain macroscopic properties of gases such as pressure, temperature of volume, by considering their molecular composition and motion. It says that pressure is due to collisions between molecules moving at different velocities. If the gas is in a container, the collision with the wall is instantaneous and elastic. Therefore, its shape is changeable by pressure or temperature. However, at some point, the volume does not change little when there is no more space between molecules or the collision with wall is stronger than the pressure. As we can see in the result of the experiment, there is bigger difference between weak pressures and smaller difference between strong pressures. At the end there is almost no difference between pressures. The other graph that volume was inversely drawn shows constant increase which is directly proportion. We can also find the shape of graph from the equation. The origin equation of Boyles’ law is P?1/V à ¯Ã‚ ¿Ã‚ ½ P=k(1/V) à ¯Ã‚ ¿Ã‚ ½ PV=k. Conclusion From the experiment, I was able to determine the mathematical relationship between pressure and volume. According to the Boyles’ law, Pressure*Volume has constancy because pressure and volume are inversely related to each other. To find out the pressure, I had to fine out the mass and the area of contact because the pressure has a formula (Mass/Area). According to the formula, the pressure of a book had 251g/cmà ¯Ã‚ ¿Ã‚ ½ (1440/5.73 = 251g/cmà ¯Ã‚ ¿Ã‚ ½). Therefore, the pressure will be constantly changed by the number of books. It is not the end of the pressure. I had to add the total pressure on the piston equals the pressure from the books plus the atmospheric pressure. For the volume part, I just had to record the scale of syringe that shown according to the number of books. The more books press the syringe, the less scale of volume was shown. From the Boyles’ law, P?1/V à ¯Ã‚ ¿Ã‚ ½ P=k(1/V), PV=k(constant) can be deduced. Form the mathematical calculation based on the Boyles’ law, the volume was exactly decreased, when the pressure was increased. In addition, Pressure*Volume showed the constancy, even if it contained huge uncertainties. Therefore, the conclusion will be same as Boyles’ law that the pressure and the volume are inversely proportional. To make the graph which shows the relationship between pressure and volume more understandable, I supposed the small numbers (50-1000) of pressure that would give much bigger volume by dividing constant from pressure. According to the graph, smaller number of pressure has bigger number of volume, and vice versa. Limitation There were a few limitations in my laboratory. First of all, as you can see in the volume part, there is no volume difference between no book and with a book which means there was not any pressure between these. I think that was because of the supporting thing which was the top of the syringe where we put the books. It seemed that it had reasonable weight as much as a book had. Secondly, there were huge uncertainties between theory and my experiment as we can assume that the experiment is not reliable. For example, the uncertainty of constant of Pressure and Volume, it had 8% of uncertainties so the biggest constancy was 1200 (highest constancy was 46,900 à ¯Ã‚ ¿Ã‚ ½3750 – the lowest constancy was 45,700 à ¯Ã‚ ¿Ã‚ ½3660) Moreover, I found that there was not constant pressure due to the unstable syringe, I had to make the balance point so my pressure by hands might influence the results. Improvement Fortunately, my experiment had a few odd points so it was rather successful. However, to improve my experiment, I need to figure it out the mass of the support thing that was on the top of the syringe. Due to the resistance by supporting stuff, there was not any volume difference between no book and a book. For the next time, we may find how much it can support it so we can subtract that weight. There were huge uncertainties that prove the results are not reliable. To reduce the uncertainties, we need to measure more accurately with more significant digits. Also, I can do more trials to make the result more accurately. Besides, we need to find more stable equipment that we do not need to find the balance point and put pressure by hand accidently. In addition, make it sure that the gas which was blocked to be released by piston should not be leaked. Lastly, when any scale is measured, make it sure that all of them are accurate so that the uncertainty will be less which means the exper iment will be more reliable.

Can Technology Dehumanize Our Society Essay

Technology can dehumanize our society including our school/s. Its because in the advancement and modernization of things which to be manipulated by the people(gadgets etc. ), life has to be somehow be convenient and easier but we should also look on the side that technology can remove skills and qualities of people in dealing with things around them and they won’t find any alternatives or options if technology is always present. For instance, in school/s, particularly in a classroom setting, if all of the students have their own personal computers, they will rely and be much independent through visiting websites that could provide answers on their research given by their teacher, the negative result of this is that, yes, they surely easily access information by just clicking one at a time but the traditional way of finding and acquiring information from books(more accurate information than those of the websites) or any reading materials that could somehow develop their reading skills is already gone. Indolence and laziness may occur also. The negative result of technology is that people will just have to sit all day long and will have to be dependent on technology. As i’ve heard also, some people are just infront of their laptops having this†online schooling† and if you could accomplish the length of time needed, you’ll be having/ given a diploma . For me, of course it isn’t bad but the essence of formal schooling(attending school. being evaluated and monitored by a mentor is already gone). Despite of all the advancement of technology, we became a society of indolent people relying so much on it.

Wrap Up Discussion LW WK9 Essay Example | Topics and Well Written Essays - 500 words

Wrap Up Discussion LW WK9 - Essay Example What was new to you? From the reading, one realized that managers could actually initially believe that change is not needed, especially when everything has been performing well. Just like Hem and Haw, they spend considerable amount of time resisting the need to change and trying to rationalize and justify why change was being imposed on them, in the first place. What was helpful to you? The lessons from what changes in organizations have relayed information that was helpful in realizing that routines are a source of stability in organizations and therefore need to be fundamentally disrupted to produce change. Just like what Hem and Haw experience, routinely going to Station C for their source of cheese limited their orientation and vision as precluding the source of their very existence to Station C. When they realized that the cheese at station C was gone, they thought that someone moved it and did not realize that routinely getting their cheese from this source depleted the supply. In addition, one learned that organizational change could be managed to minimize resistance and to ensure that the needed transformations would be instituted effectively. As learned, various organizations have different ways to manage organizational change depending on the reasons for change, the images of managing change, and the types of changes. Although there is no effective prescribed manner for managing change, the techniques and guiding principles outlined in the managing organizational change module are all helpful to cater to the specific needs of the organization. For one, I realized that managing organizational change needs the cooperation and participation of all who would be directly involved and affected by the change process. Further, after communicating all pertinent information relative to the proposed change, organizations must be prepared to implement the change process that affects internal resources and must also incorporate all

Womens Work and Globalized Case Study Example | Topics and Well Written Essays - 2000 words

Womens Work and Globalized - Case Study Example In this case, the women find themselves able to cope well with the challenges that come with the globalization and the women’s work in the workplaces. As a result, more and more women should seek the available employment in the technologic areas applied areas instead of leaving them only to men as it has always been there before Globalization to women in the workplace currently witnessed in various sectors of the employment sectors in the world. Today many women take very complicated courses that initially were for men. For instance, areas such as engineering, medicine, chemistry, and physics used to be for men. However, the trend today is remarkable since it is women who form the best engineers, doctors, and scientist when compared to men. Despite the social changes that are also there to influence the globalization trends among the women in the workplaces, the trend of the invention of modern technologies encounters them. The invention of computers today makes it entirely possible for the women where they can work in an organization as clerks, receptionist, secretaries, and other positions that men do ignore or refuse to take. As such technology becomes useful to women in working with to an organization in such work sectors Countries such as Japan and Italy today have most of their women playing the greatest role in globalization issues due to employment. In these countries, women begin to start embracing the use of technology as early as their childhood status. When they become fully grown up, they can effectively use the various forms of technology which, in this case, promotes the globalization trends in the world. Despite the presence of discrimination that may come due gender and also the political influences that there may be in a particular country.

Brand management Assignment Example | Topics and Well Written Essays - 1000 words

Brand management - Assignment Example Some of the aspects of BIG are not fully satiating. That one has to spend points with Air Asia only whereas other airliners such as the Qantas are flexible enough to allow one to choose from a myriad of brands undercuts BIG’s policy. BIG also does not factor the use of AUD in money conversion points and this is a minus. The relevance of information presented is relative. This is because one of the chief points of concern was student-friendlier air prices, yet Air Asia zeroed in on matters such as comfort and the introduction of online shopping events and stores and entertainment events and accommodation services. Reconsidering BIG remains a tenable option, given its student-friendly rates, compared to other options. This also means that should there be another company offering cheaper airfare, personally, it will be considered beside the offer being put forth by BIG. BIG’s reward system fall short of fully exciting, sincerely, given that it is largely unfair to those wh o are not regular travelers like me. Secondly, BIG’s package and offer makes the assumption that every client is a sole decision maker, yet that is not the case with me. Like my peers, I travel with my parents since I am still 18. BIG also in its advertisement claims that its services are cheapest, yet this is clearly an artifice to retaining customers. This is because, the rates are subsidised only to those who have punctiliously followed up the stipulations of the loyalty programme. Some of the areas of improvement include the systematic arrangement and presentation of information, especially information which is significant to students’ interests, proper advertising that specifically aims at students who are hard to market target due to their strict budget, and the need to utilise the use of Facebook to market Air Asia, since scholars such as Alloyce and Forte (2011, 22), Franc (2012, 34) and Bedeyore (2005, 75) have already acknowledged the place of online social n etworks in business success. I am a moderately satisfied customer since the specific item (student-friendlier air prices) that I was interested in was not available. The failure to organise information in a manner that would make information easily retrievable and the failure to use Facebook are some of the factors that served as a letdown. However, the presence of online shopping events and stores and entertainment events and accommodation services abated the degree of a possible backlash that students would extend towards it. It is not mandatory that I become part of the loyalty programme in order to become a loyal customer. All that is needed is the consideration of students-friendlier rates of air ticket, since this will auger well with my strict budget. Even Miranda (2009, 45) and Ortiz (2012, 13) postulate that the use Facebook and the organisation of information in a manner that would make it easily retrievable and accessible will also help convert me into a loyal client. Ind eed, being part of the loyalty programme may have the potency to change my behavioural predisposition since the move will be instrumental in inculcating in me, the sense that the airline company acknowledges and appreciates me and I am therefore not taken for granted. Considering some of the aspects likeable about the experience Some of the aspects that are likeable about the

Contingency Theory and Global Leadership Essay Example | Topics and Well Written Essays - 1000 words

Contingency Theory and Global Leadership - Essay Example Since, parties in a global market come from diverse backgrounds, global leaders have challenges in assessing the diverse demands of the parties (The Leadership Trust, 2008). Indeed, every cultural group has different demands. Moreover, the existence of boundaries between geographies and markets derives complexities in assessing the demands of parties in different geographies since there are no universal demands that apply to all geographies (The Leadership Trust, 2008). The rapid global impact of unforeseen events poses a great challenge to the global leaders since they cannot predict the occurrence and the effects of such events on the demand and thus assessing the demands of a situation given a global role. A global leader will also encounter challenges that emanate from social, economic, and political change. The global leader will also face the challenge of developing a creative approach in assessing the demand and implementing the solutions to various problems in the global mark et. Furthermore, lack of inspiring visions that can apply across cultural and organizational boundaries without losing meaning is also a challenge in assessing demands of a situation given a global role (The Leadership Trust, 2008). ... Developing self-reflective leadership, effective conflict resolution, and adopting diversity in the management and assessing demand will resolve the problems associated with assessing demand in a global situation. Moreover, the practice of creating global ethics and global strategies that will be flexible to multicultural differences will be very fundamental in this case (O’Brien, 2009). The creation of a vision and strategy as well as systems that managers can manage would play a significant role in resolving the above named problems. Furthermore, the presence of a Global Leadership and Public Policy as well the focus on organization and teamwork would help in addressing the challenges related to assessing demand in a global situation. Indeed, we can adopt the leadership theories to develop an organizational design that would relate to the global challenges in this context. A practice that relates to the situational variables and establishing an organization with internal fea tures that matches the demands of the diverse environments will help in assessing the demands in a global situation. The contingency theory asserts that there is no one best way to organize and that any way of organizing is not equally effective. The Contingency Theory asserts that a global leader must match their leadership style with the situational demands (Northouse, 2012). Ideally, the contingency theory confirms that no leadership style suits all situations and that specific variable like the dynamics of the situation, leadership style, and characteristics of the followers define the success of any leadership style. Personally, I experienced this when our marketing manager used contingency theory in a global role

The most important concepts in the business-supply chain relationship Essay

The most important concepts in the business-supply chain relationship - Essay Example For example, the supply chain of an automaker is different from that of a consumer electronics goods manufacturer, meaning their infrastructure also contrast (Oliveira and Gimeno 29). Suppliers in the automotive industry must have adequate capital and facilities to provide materials at competitive prices, and these materials are unique to that industry. On the other hand, automakers should have the capacity to store and process these materials to develop the product and then sell it through the distribution networks. Suppliers and producers must observe relevant legal requirements in their specific industries to avoid attracting punitive measures that would handicap their capacity and freedom to operate (Oliveira and Gimeno 54). Industry-specific legal and regulatory requirements must be observed by both parties, or their relationship would be compromised by interruptions and constraints. For businesses, social and working conditions are part of company policy regarding employee welfare and the employer-employee relationship. They are also closely related to the labor policies of whichever countries they operate in. In recent times, there have been reports of employee maltreatment involving poor working conditions, extremely low wages, and lack of employee rights, especially among suppliers (Stadtler, Kilger, and Meyr 42). Large companies like Nike have been accused of working with rogue suppliers who do not respect labor rights, and this has damaged their reputations. As such, businesses and supply chains must demonstrate adherence to ethical practices and respect for labor laws. This involves communication and operational efficiency. To keep the supply chain running optimally, suppliers must communicate with their partners at various levels and ensure that all processes run seamlessly. There has to be good communication between businesses and suppliers, to reduce

Career Competence Factors Essay Example for Free

Career Competence Factors Essay The essential skills and abilities associated with students’ personal learning styles are many of the capabilities hiring managers look for when reviewing applications. University of Phoenix learning goals represent another set of core competencies that can help you become recognized as an exceptional candidate or employee. Part A Complete the Personality Spectrum on pp. 66–67 in Ch. 3 of Keys to Success. Based on the results, respond to the following: What is your primary strength? My primary strengths are that I am a THINKER and an ORGANZER. How does this strength make you a strong candidate or employee? I am good at solving problems and I am responsible and reliable. What is one area of improvement?Being a giver is an area that I need improvement in. How can you improve in this area to become a stronger candidate or employee?I can improve by being more sensitive to others feelings and needs. Part B Read the University of Phoenix Material: University of Phoenix Learning Goals, included in the materials for this assignment. Fill in the following matrix with summaries of how each university learning goal can help you with career preparedness. University Learning Goal How can each goal prepare you for success in the workplace? Professional Competence and Values Having values and ethics can help you in makin important and critical decision in the workplace. Critical Thinking and Problem Solving

Introduction To Polyurethane Foam Engineering Essay

Introduction To Polyurethane Foam Engineering Essay Polyurethanes are broad class of materials used widely in many applications. Polyurethanes are also written as PUR. Polyurethanes also called as urethanes are characterized by urethane linkage -NH- C (=O) O . This linkage is formed due to the reaction of isocyanate group with hydroxyl group as shown in the following equation. [2] Equation 1.1 Equation showing the reaction of urethane linkage in polyurethanes. [2] Polyurethanes are discovered by Otto Von Bayer co workers in 1937. [3] The characteristic structure of urethanes is given as: And they can be considered as esters or amide esters of carbonic acid. [3] The polyurethanes are also sometimes called as urethanes only and they are also called as isocyanate polymers. They are synthesized by the reaction of polyfunctional hydroxyl compounds with polyfunctional isocyanates. [3] The structure of polyurethane formed from di hydroxyl compound and di isocyanate is given as: Polyurethane is widely used in various fields such as making of plastics, cushions, foams, rubber goods, synthetic leathers and fibres. The total annual production of urethanes in the world is estimated to be 8 million tons per year and is increasing 4-5 % yearly. [4] Polyurethane is a versatile polymer having unique chemistry with excellent mechanical and optical properties and have good solvent resistance. [5] Polyurethanes are materials with many applications but major applications are in furniture industry, foam industry, building construction and shoe industry and also polyurethanes can be used in medicinal and agricultural applications. [6] Polyurethanes have large number of applications and uses in different areas due to their versatility but most important application of polyurethane which has covered almost 29% of the total market of polyurethane is polyurethane foam. [7] 1.2 Polyurethane Foam The major application of polyurethane is polyurethane foams which are extensively used in many applications. They are referred as PUR foams and they are prepared by the reaction of addition, condensation or cyclotrimerization. [2] Following table shows the type of reaction in the foaming system and the resulting foam property present in the foam produced by that respective reaction. Foam Reaction Foam Property Polyurethane Poly addition Flexible and rigid Polyisocyanurate Poly cyclo trimerization Rigid Polyamide Poly condensation Flexible and rigid Polyimide Poly condensation Semi rigid and rigid Polyurea Poly addition Flexible and rigid Poly Carbodiimide Poly condensation Semi rigid Poly Oxazolidone Ring opening Poly addition Rigid and semi rigid Table 1.1 Table showing different types of foam based on their synthesis reaction [2] Mainly PUR foams are classified into two types which is flexible and rigid foam and then flexible and rigid foam are classified into various sub types depending upon the different type of applications in which they are used. Polyurethane structure consist of a polyol and polyisocyanate component we can say that polyols are the building blocks and isocyanates are jointing agents. So polyurethane foam chemistry is called as building block chemistry. All kinds of polyurethane foams are prepared with the proper choice of polyol and isocyanate component with respect to chemical structure, equivalent weight and functionality. [2] Following table shows the classification of PU foam with respect to polyol component and functionality. Polyol Rigid foam Semi rigid foam Flexible foam OH No. 350-560 100-200 5.6-7.0 OH Equivalent No. 160-100 560-280 10,000-80 Functionality 3.0-8.0 3.0-3.5 2.0-3.1 Table 1.2 Classification of polyurethane foam w.r.t polyol and functionality [2] 1.3 Foam Preparation Technology Polyurethane foams are prepared by mixing isocynate component in polyol having catalyst, fillers, additives, surfactants and other chemicals in it. No heating is required at room temperature. [2] 1.3.1 Foaming Systems Foaming systems are classified into three types based on the type of chemicals used in the synthesis process. These types are: One step One shot system Quasi Pre polymer system Full Pre Polymer system One step system and Quasi system are mostly used in foaming industries now in which one step process is used majorly while pre polymer system was used only in the early times of urethane industry. [2] 1.3.1.1 One step one shot System In one step system Component A and Component B are taken separately. Component A contains only polyisocyanate component while component B contains polyol, surfactant, blowing agent and catalyst. Both components are mixed which led to the formation of foam. 1.3.1.2 Quasi Pre polymer System In this system in component A polyisocyanate component is taken with polyol and in component B rest of the ingredients are taken with polyol which includes catalyst, blowing agent etc. Mixing forms a foaming product. 1.3.1.3 Full Pre polymer System In full prepolymer system in component A poly isocyantae component is taken and polyol is also added in it while in component B polyol is not added while the rest of chemicals like blowing agents, surfactants and catalyst are taken. Components A B are mixed and foam is formed. These foaming systems show only two component system however in industrial processes there are modifications. For example in slabstock process three or four streams are employed carrying different reactants. [2] 1.3.2 Foaming Processes Mainly three types of foaming processes are used, which are cup foaming, box foaming and machine foaming. Machine foaming is further classified into various foaming processes. [2] 1.3.2.1 Cup Foaming This foaming process is also known as hand mixing. This method is mostly used for lab scale synthesis of foaming products. In this process mixing is done in paper or plastic cups thats why called as cup foaming. In cup foaming poly isocyanate component is taken in a cup and rest of the reactants are also taken in a separate cup which includes polyols, catalysts etc. Then both the components are mixed using electric balance or by hand mixing and a foaming material is formed in the shape of a cup. This is the simple and cheap foaming process thats why used widely on lab scale. 1.3.2.2 Box Foaming Box foaming is better than cup foaming to obtain sufficient amount of samples for evaluating foam properties for machine foaming. The sizes of the box range from 15x15x15 cm and 30x30x30 cm. The inside of the box is lined with craft paper. The procedure is almost similar to that of cup foaming and mixing is done through electric drill equipped with mixer. Immediately after mixing system is poured into the box and allowed to rise to obtain foam. Foam is cured at room temperature after some time. [2] This method is also used largely on lab scale to produce foam. 1.3.2.3 Machine Foaming In machine foaming variety of machine processes are available which are one by one described as under. [2] 1.3.2.3.1 Large Box Foaming It is a discontinuous process used to produce small foam blocks with smaller volumes. The size can be 1x1x2 meters. Due to exothermic conditions small modification is required in the process as compared to the box foaming process. 1.3.2.3.2 Slabstock Foaming Slabstock foam is made by the continuous pouring of foamable liquids on a moving conveyer. A cut-off segment of the continuously produced foam loaf is called a block or bun [2]. In the case of polyether-based flexible urethane foam, a slabstock foam size can be about 1 meter high and 2 meters wide, with a foam density of 1.6 to 2.0 pound/ft3. The cross section is rectangular with a crown-shaped top surface. The higher the crown, the less the yield of available foam. Two techniques canto used to reduce the crown. One method is to pull vertical sides of rising foam. Another technique is to compress the top of crown surface. Equipment for doing this is commercially available. [2] 1.3.2.3.3 Pour-in-Place Foaming This process includes pouring of foaming ingredients into a void space to form an integral part of the foam and substrates. Products which use this process are household refrigerators and deep freezers. 1.3.2.3.4 Sandwich Foaming and Molding Sandwich foaming is used to produce sandwich panels from foam cores. It can be produced continuously using conveyers or discontinuously using jigs. Surfaces material can be craft paper in it. Molding is used to produce shaped foam products such as car seats and furniture. Reactants are placed in mold cavity and cured in the mold. After curing molded foam is removed. [2] 1.3.2.3.5 Spraying and frothing Spraying is a unique process used for urethane and iso cyanurate foams .It creates insulation layers not only on flat surfaces like roofs but also on non flat surfaces such as spherical tanks and pipes and building structures such as frames. Frothing process in urethane systems is similar to that of shaving cream. There are different types of frothing processes which are conventional frothing processes, chemical frothing and thermal frothing etc. Frothing process usage depends upon the reactants and conditions and which type of foaming product is required. [2] 1.4 Types of Polyurethane foams Major classes of polyurethane foams are flexible and rigid foam further these two types are more classified according to their extensive applications. 1.4.1 Flexible Polyurethane foam Flexible polyurethane foams are synthesized by slabstock process or by molding process and they are also classified further on the basis of technique used for their synthesis. They are also classified on the basis of polyol in polyether and polyester foams. Slabstock foams include conventional polyether foam, high-resilience (HR) foam, visco-elastic foam, super-soft foam, energy-absorbing (EA) foam, semi flexible foam, and flexible polyester foam. Molded foams are classified in two classes: hot molded foam and cold molded foam. [2] All classes of flexible foams are explained one by one as follows . 1.4.1.1 Slab stock foam The contionous piece of foam by the continuous pouring of foaming ingredients on a continuously moving conveyer is called slab stock foam. A cut off segment of slab stock foam is called as bun foam. Slab stock process is widely used in industry in production of flexible polyurethane foam. [2] In slab stock foam process inclined conveyer is used from the beginning of urethane industry. Following figure shows the production line of contionuous slab stock machine. Figure1.1 Continuous slabstock machine [2] The cross section of slabstock foams produced by the inclined conveyer process is not exactly rectangular and has crown shape. A crown-shaped cross section of foam bun results in a lower yield of fabricated foams. Accordingly, some improved processes to obtain rectangular cross sections have been proposed. One step process is widely used in these foaming systems. All ingredients are pumped into the mixing head through several streams and are poured from the mixing head onto the moving conveyer. From the standpoint of viscosity and metering accuracy, some ingredients are preblended. These blends include a blend of water and amine catalyst, a blend of tin catalyst and polyol, and a blend of physical blowing agent and polyol. The reaction temperatures in core foam usually reach about 160 to 170Â °C. The exothermic heat is mainly a function of the water-isocyanate reaction. The reaction temperatures are affected by the isocyanate index, water level, and catalyst concentration.[2] Poly ether slab-stock foam is important in slab-stock flexible PU foams and it is produced by this slab-stock process widely in industries. 1.4.1.2 Molded Flexible foams Molded flexible foams are used for making shaped products such as automotive seats, child seats, head restraints, vibration damping for automobiles, arm rests, furniture cushions and mattresses. The density distribution of molded foams is composed of high density skin foam and low density core foam. In the molding process mixed foaming ingredients are poured through a mixing head into a preheated mold made of aluminum, steel, or epoxy resin. The mixed ingredients flow and expand in the mold, and then the molded foams are kept at the required curing temperature for a limited time, which is followed by de-molding.[2] Molded flexible foams are further classified into hot molded and cold molded flexible polyurethane foams. 1.4.1.2.1 Hot Molded flexible foams Hot molded foam is produced using conventional polyether polyol with TDI 80/20. In 1961 hot-molded urethane foam mattresses was commercialized that provided better sleeping comfort than slabstock foam mattresses and greater durability. Because of the relatively higher cost, however, the molded mattress was not competitive with slabstock foam mattresses, and production was discontinued. [2] 1.4.1.2.2 Cold Molded flexible foams Cold molded flexible foam is prepared at very low mold temperatures of 60 to 70 Â °C with mold retention time of 10 minutes and then cured in a separate oven or at room temperature. In this type mostly isocyante components used are blends of TDI MDI and polyol used is polymer or graft polyol. Dual hardness automotive seats are made by this process using graft polyols. [2] 1.4.1.2.3 High Resilience HR foams HR foams have higher resiliency than conventional flexible foams. These foams are prepared by cold molded process. The formulation principle is to reduce intermolecular interactions such as hydrogen bonding of urethane linkages, irregular structures of polymeric molecule, and so on. High Molecular weight polyether polyols are used in the formulation of these foams. Polyisocyante components used are blends of TDI MDI with the weight ratio of 80/20. Also polymeric MDI alone can be used. HR foms are widely used in furniture and automotive applications. [2] 1.4.1.2.4 Visco-elastic foam Visco-elastic VE foams are characterized by slow recovery after compression. The foam is also called low-resiliency foam, slow-recovery foam, ergonomic foam, better-riding comfort foam, and temperature-sensitive foam. VE foams are used by NASA in early 1960 but they are highlighted commercially only in the recent years. VE foams are synthesized using polyol blend of high and low molecule weight polyols with TDI or MDI, and they can also be produced using blend of MDI TDI with polyether polyol. TDI-based VE foams are soft to the touch and have very low resilience and slow recovery. MDI-based foams are easier to process and can be produced in a wider range of isocyanate indexes. However, physical strengths of MDI-based foams are lower, resilience is higher, and compression set is better than TDI-based foams. The VE foam market includes seat cushions for people who spend a long time sitting such as truck drivers, office workers, and airline pilots, as well as for NASAs space shuttle seats, wheelchair seats, and so on; sporting goods that require energy absorption such as gym mats, helmet linings, leg guards for ice hockey, ski boots, and ice skates. [2] Our main product is VE foam and it is further explained in the later chapters. 1.4.1.2.5 Super soft slab-stock foam This foam can be prepared by using a high molecular weight polyether triol with TDI 80/20. Blowing agent can be water alone or some physical blowing agent can be used with water. It is a low density foam. Major market of super soft foam is high quality back cushions for sofas. This foam also have low cross linking density. [2] 1.4.1.2.6 Semi flexible slab-stock foam These foams have high open cells, high load bearing and high energy absorbing characteristics. These foams are used in large number of automotive applications such as bumper cores, interior knee bolsters, side impact absorbing door panels, and headliners under the automotive roof. Due to energy absorbing characteristics this foam may be called as Energy absorbing EA foam. [2] 1.4.1.2.7 Reticulated foam It is 100% open cell structure foam with no cell membranes. Removal of cell membranes for polyether foam is possible when membranes are dissolved with an alkaline solution. Reticulated foam find its applications in various mats, filters and pads.[2] Mostly the foam used in floor mats is this type of foam and it is mostly used in making mats and filters because it is completely open celled foam. 1.4.1.2.8 Integral skin flexible foam Integral skin foam is also called self skin foam. It consists of high density skin foam and low density core foam that is sandwich structure. The mold temperature for integral skin foam is carefully controlled at 40 to 70 Â °C. Water can be used as a blowing agent but it produces thin skins. Integral skin foam is prepared by open mold process or by reaction injection molding. [2] 1.4.1.2.9 Micro-cellular Elastomers These are also called foamed urethane elastomers. The density is in the range of about 320 to 960 kg/m3. Micro-cellular foams are prepared by using aliphatic polyester diols with poly tetra methylene ether glycol (PTMEG). The poly isocyanate component used is TDI pre-polymer and liquid MDI. Also chain extenders and cross linkers are used. Water is used as a blowing agent. These elastomeric foams are used for various shock absorbing elements in vehicle suspensions, precision machines, shoe soles and sports shoes etc. [2] 1.4.1.2.10 Shoe Sole foam The advantages of polyurethane foam in shoe soles include high abrasion resistance, high flexibility, low density, high cushioning, and solvent resistance. In addition, the direct molding of the sole with the upper part of shoe makes it possible to increase production efficiency and lower production costs. Casual shoes are produced using polyether-based foam systems. Some sports shoes such as tennis shoes are produced by polyester foam systems, because polyester-based foam has higher abrasion resistance, tensile strength, and elongation at break in comparison with polyether-based foams. [2]