How Parents Treat Sons And Daughters Differently Essay

How Parents Treat Sons And Daughters Differently - Essay Example This child then becomes the adult of the society, and the subsequent domino effect for the creation of all prejudices, biases and polarity comes into existence. Taken objectively, because essentially the male and female child are intrinsically very different, it is virtually impossible even for the most passionate of parents to claim that they have sustained a just rule for all. The study finds its rationale in the fact that it is essential to understand where the root cause of discrimination is embedded within the human behavior, as it later on goes on to produce social, economic, religious and moral prejudices within the human community - a reality that is causing all the unrest in out world. There quite a few studies, which have worked on this project. "In the United States, a person's gender has affected the level of education she is likely to receive, the occupation she will take up, and the wages she will be paid" (Blau 1998, U.S. Department of Education 2000). Morgan, Lye, and Condran (1988) discover that sons reduce the risk of marital disruption by 9% more than do daughters. In the same domain, Dahl and Moretti (no date) find that having a girl considerably affects marriage and divorce rate; being 3.4% less likely to be living with her father compared to a first-born son. Some studies have found that "fathers interact more with infant sons and are more engaged with adolescent sons than daughters" (Barnett and Baruch 1987). There is also accord among researchers that fathers spend less time in childcare than mothers do (Pleck and Masciadrelli 2004). METHODS In order to gain a basic insight into the issue, a study was designed which would give an idea about the issue. The results would help us understand whether the incidence of this problem is existence or is it just an academic model. Participants The volunteer participants of the study were 25 pairs of brothers and sisters. They were different in sibling order, and even in the total number of siblings. But from every family, one son and one daughter were selected. For 25 families, the total number of participants thus came out to be 50. The inclusion criterion was children aged from 4 to 12. They were not told about the exact of the study, so that their biases and preconceived notions would not come into play. Also, the same tool was given to all of them, seeking their opinion about how they thought their parents treated them, in general. Procedures The tool used was a specifically designed questionnaire that would measure up to the basic requirements within the household, school and neighborhood of children aged 4-12. as literacy and cognitive understand would be an obvious issue, therefore the questionnaire was administered to all of them through an interview, wherein the standardized items were asked from all the participants in isolation. It is very important to mention here that as children are well under-aged to make their own legal and rational decisions, therefore an undertaking was also signed by their parents which would admit them participating in this study. The exact scope of the study was told to the parents. Dependent Measures The questionnaire itself addressed issues of psychological, sociological, familial, economic and

Management and Leadership of Organizations Essay Example for Free

Management and Leadership of Organizations Essay Management and Leadership of Organizations Unit 1 Individual Project American InterContinental University Details: The internet has created new ways to do business for organizations with much less capital planning as opposed to the high capital needs of traditional brick and mortar organizations. Based on this, how should management and leadership be addressed for each type of business? Research successful traditional and online retailers and address the following issues: Discuss the organizational structure of one traditional and one online retailer. Identify two management or leadership challenges for each type of retailer. Are the challenges basically the same or different? In what ways are they the same or how are they different? If you were advising a successful leader in a traditional retailer who was interested in making the transition to working as an online retail organization, what advice would you give? Management and Leadership This paper I will examine the roles and responsibilities of authoritative managers and leaders in advancement and creating an advantageous authoritative ability in a company. I will additionally differentiate amid administration and administration aural an aggregation as able-bodied as call the roles in which both managers and leaders comedy in creating and advancement an advantageous authoritative ability in a company. I will go on to explain how the arch action of administration supports the conception and aliment of an advantageous authoritative ability in a company. Finally, I will achieve with my recommendations that both managers and leaders can use to actualize and advance an advantageous authoritative ability in a company. The responsibilities of the managers in a company are to overlook employees’ performance, accommodate acknowledgment during advance reviews, and analyze areas of improvements and agent recognition. A company will also have leaders, which are classified as assignments or work leaders. Their duties are to aid advisers like themselves in their circadian job duties. Assignment or work leaders tend to be added accomplished advisers who managers agent this responsibility. Although the two high leaders and management seem to be similar, I can truly tell you they are very different. Someone people maybe a manger but not a true leader. The definition of a manager is to accept subordinates and leaders accept followers. (Changing Minds) There are dissimilarities with a leader and a manager at each company. They can have very different attitudes on their goals. whit a manager in a company’s authoritative goals are linked to the ability of the organization based on the four functions of administration such as planning, organizing, leading, and controlling, as with leaders access goals are on a more personal level. Leaders tend to advance his or her own account rather than accommodate to the â€Å"Main Objective† of the organization. Leaders accept an abundant access on others. According to the analysis I have found it states that, â€Å"Outstanding leaders connect their strategic substance and effective interpersonal processes to codify and apparatus strategies that produce a result and acceptable aggressive advantage†. Within a company, both managers and aggregation leads have a role in creating and advancement an advantageous authoritative culture. Often, a person can tend to act out of ethnocentrism, which is â€Å"the addiction to adjudicator others by the standards of one’s accumulation or culture, which are apparent as superior,† This behavior reflects badly on an organization. Managers and aggregation leads in a company are declared to reflect the personality of the support the overall goals and the organization. For example, a company, it is important that you accomplish every goal to get a customer’s to have absolutely corporation with an operational person in a proper time frame that you guarantee your customers so that they are happy. To do this involves a lot of maneuverings from several people in the organization. Both managers and leads must take on some activity to ensure this is done. An acceptable leader will help motivate the advisers to want to access and meet this goal. This entails the lead of management, which â€Å"involves the manager’s efforts to activate high achievement by each employee†. In A company, administering account achievement evaluations on advisers or employees helps each manager by pointing out employees’ strengths, weaknesses, and areas of improvements to accredit that agent to grow to be more successful. This supports the conception and aliment of an advantageous organizational culture within the company. This way the advisers or employees can see where they are and what area they need to change to be affective in the organization’s goal. The leading action of administration â€Å"involves the manager’s efforts to activate high achievement by employees†. In an organization, this is handled by administering account evaluations of each advisers and having daily team meetings to communicate tasks that are being followed and completed to be sent to high management. This is additionally how administration supports the conception and aliment of an advantageous organizational culture in a company. Recommendations for managers who demand to be leaders are to appearance compassion. To be a leader a person needs to see the world as an opportunity to change. They need to accept the employees dilemmas. Respect the assessment of the advisers and accomplish decisions that will be acceptable not only for them but the company as well. Leaders should not be acquisitive or selfish. They need to accept the amount of sharing, and apperceive their success is the effect of the efforts of every individuals. In conclusion I have shown you the different aspects between a manager and a leader in a company. With a new concept and a diverse world of business it is very necessary to implement both the managerial skills with the leadership skills in order to create new ideas. All of the Employees need to feel that their worth everything to the company and that they know that their opinions matter in the company as well. With c company you will always have challenging assignments and implementing that will build an idea in an employee and some are will not be discontent or unhappy. References Changing Minds Retrieved from http://changingminds. org/disciplines/leadership/articles/manager_leader. htm The Art and Science of Leadership sixth edition author Afsaneh Nahavandi

Chaucers The Canterbury Tales Essay -- Chaucer Canterbury Tales Essay

Chaucer's The Canterbury Tales Critics interpreting Chaucerian depictions of drunkenness have traditionally focused on the state as an unalloyed vice, citing variously as justification the poet’s Christian conservatism, his intimate association with the disreputable London vintner community, and even possible firsthand familiarity with alcoholism. While we must always remain vigilant to the evils of excessive inebriation, to portray Chaucer’s images of drink and revelry in The Canterbury Tales as an unqualified denunciation is to oversimplify the poet’s work and to profane his art. By fusing his portrayals of drunkenness with the revelation of truth and philosophical insight, Chaucer demonstrates the capacity of wine and ale to evoke the funky earthiness of humanity that we so desperately seek to avoid and that is so fundamental to our corporeal experience. On the surface, drunkenness in The Canterbury Tales seems to be a force of disruption. The belligerent Miller churlishly demands to tell his tale before the Monk and thus violates the Host’s intended order of tale-telling. Indeed, the Miller’s interruption violates the very structure of the medieval social order by having member of the third estate of commoners interrupt the representative of the nobility embodied in the Knight. In another example of disruption, the intoxicated Cook falls off his horse as the party finally approaches Canterbury. He, too, causes a weighty disturbance as the stronger pilgrims are forced to remount â€Å"his hevy dronken cors† (IX. 67). For its tendency to disrupt the tales, commentators have traditionally portrayed drunkenness in an unfavorable light. Yet, such an interpretation is misguided. The eruptions of drunken... ...enness is â€Å"hard-wired into the structure as a whole.† But drunkenness in the Tales is not â€Å"a symptom of some pervasive spiritual malaise,† as Bowers argues; drunkenness is a sign of a vibrant spiritual vitality. Drunkenness realigns the pilgrims with the inescapable earthy creatureliness that constitutes the fundamental paradox of the human condition. We assiduously endeavor to transcend our material world and use myriad euphemisms to avoid the truth, but we inevitably come crashing down into the filthy, funky, moist humus. We are ever burying our dead, ever reconstituting our humando. No, the answer lies not in Bowers’s teetotalism; Criseyde holds the truth. â€Å"In every thing, I woot, ther lith mesure,† she says. Everything must come in moderation, including moderation itself. According to Chaucer, a few drams of whiskey will be just fine. In vino veritas.

Populism and the Jacksonian Democrats Essay

Question: In what ways were the late nineteenth-century Populists the heirs of the Jacksonian-Democrats with respect to overall objectives and specific proposals for reform? The Populists of the late nineteenth-century were in many aspects the heirs of the Jacksonian Democrats, carrying on the legacy and tradition left behind. The Populists were very similar to the Jacksonians in many of their overall objectives and specific reform proposals. During the Jacksonian Era from about 1828-1842, the Democrats set the standard to be carried on later by the Populists. The Jacksonian Democrats identified with the common man. They wanted all democrats to agree. In 1828, Andrew Jackson was elected president and he was later reelected in 1832. In the year of his reelection, Jackson established the spoils system to reform the government, removing some federal officeholders (â€Å"To the victor belong the spoils†) and made the right of elected officials to appoint their own followers to public office and established feature of American politics. Also in this year, Jackson vetoed the bill to recharter the Bank of the United States. This sets the tone for his, and the Democrats, ongoing battle with the Bank and its president, Nicholas Biddle, later to rise to climax when Jackson removed federal deposits from the Bank of the United States. A year later, in 1833, the nullification crisis erupted, pushing Jackson and his Democrats into another battle, this one with John Calhoun and nullification. Jackson insisted that nullification was treason and those implementing it were traitors. The nullification crisis was averted by compromise: the lowering of the tariff of 1828, the tariff of abominations, gradually be lowered. Jackson believed in a distinct, but simple theory of democracy, that it should offer â€Å"equal protection and equal benefits† to all its white male citizens and favor no region of class over another. This meant an assault on what he considered the citadels of the eastern aristocracy and an effort to extend opportunities to the rising classes of the west and south. It also meant a firm commitment to the continuing subjugation of African Americans and Indians, keeping these â€Å"dangerous† elements from the politic body to keep the white-male democracy they valued in preservation. Carrying on the Jacksonian legacy, the Populists were mostly farmers and industrial workers; they were the common man. They believed that wealth belonged to the working class, those who create the wealth, not the owners and a graduated income tax (as the income goes up, the tax rate goes up, so wealthier people pay more taxes than the poor). The Populists were champions of the workingman, pushing for better work conditions and a shorter workweek, as well as putting more money in the hands of the workers. One of the biggest reform proposals of the populists was bimetallism and free coinage of silver. Free coinage of silver would have increased the supply of money since silver was in easy circulation. An increase in the supply of money would generally lead to inflation unless the supply of goods and services by at least as much. As did many industrial workers fearing for their jobs, the Populists wanted to limit immigration. In carrying on the legacy left by the Jacksonian Democrats, the Populists exhibited many of the same ideas and proposals. The election of Andrew Jackson to the presidency in 1828 marked not only the triumph of a particular vision of government and democracy, it represented the emergence of a new political world. The Populists emergence in 1873 represented the emergence of a new political world as well. The Jacksonians may have represented and identified with the common man, but the Populists were the common man. During both eras, a main reform movement of each was to upset the eastern powers; Jackson was to defeat the stranglehold of the aristocratic east on the nation’s economic life; the Populists were set to defeat the stranglehold of the industrial east on the nation’s economic life. Both parties were champions of the common man, although it was the Populists championing themselves. The legacy and tradition left behind by the Jacksonian Democrats was aptly picked up by the Populists of the nineteenth-century.

The Roles of Identity in Society

The Roles of Identity in Society Many would argue that social justice is being served when someone says â€Å"we are all the same under the skin†. We are not all the same under the skin. Within us are our own senses of identity, constructed by our familiar discourses, the physical environment and its embedded culture, and our individual differences. Our sense of identity accounts for our perceptions of ourselves and how we are positioned by others in terms of culture, tradition, rituals, race, family, religion and education (Allen, 2004). Our identities affect our life chances through our positions in society, the access we have to power, status, education, and wealth (Allen, 2004). Examining our own identities gives us insight into the role identity plays in life and society and therefore some understanding of the impact that the identities of others has for them on their life choices (Austin, 2005). This essay will examine the importance of the search for identity, and the desire to reconcile those identities with society’s expectations, for the narrator in the novel by McDonald and Pryor (1999), ‘The Binna Binna Man’. The journey of this character will be positioned against my own life’s story as I attempt to compare the roles our identities have played in positioning us as members of Australian society. The narrator in The Binna Binna Man is a character who has a very secure sense of his own identity. He has a sound knowledge of his spiritual heritage, his people’s traditions and the importance the strength of his identity has for him and for his people. He seems perplexed by the idea that his cousin Shandell is â€Å"†¦living different from all that stuff’ (McDonald & Pryor, 1999, pg 17). He is reminded by his â€Å"girragundji† (a guide for life sent by his ancestors) that the way to stay strong and avoid getting lost is to have faith in his spirituality and his identity (McDonald, et al. , 1999). This is proven to him when he almost follows Shandell down the path to self-destruction. The Binna Binna Man, their beliefs, bring them both back to the strength they gain from knowing that they are Aboriginal Australians, with a wealth of culture, history, knowledge, and skills. Unfortunately their people bear the scars of that wealth being devalued and misunderstood by the Anglo Australian hegemonic society. This is demonstrated through the sadness they carry and the way they feel how many of their people they have lost. The narrator and his family have to scrape together the means to travel out of the community they live in to be able to participate in their cultural rituals of grief and burial because they are not traditions easily accessible to them in Australian society. The narrator does not carry around the invisible knapsack of rights and power described by McIntosh (1988) that gives him access to the ability to carry out the roles of his identity. Rather, he realizes the struggle he has ahead of him, to keep the strength of his identity and to be able to survive life and society with it proudly intact. He can see the strength of his people, but he can also see their struggle (McDonald et al, 1999). As noted in McDonald (2004) Australian Indigenous youth battle on a daily basis with the pressures their identities generate such as racism, poverty, the hegemonic culture of school, and having English as a second language, while trying to maintain the roles expected of them from their Indigenous cultures. It is an enormously demanding and frustrating battle for these youth to get through their daily lives intact, let alone being able to achieve well in either world. The narrator is struggling with his identity as an Aboriginal youth in Australian society and is trying to emerge from a history of oppression and denial. He has not inherited wealth from his parents or the social and cultural capital necessary to be able to identify with the hidden curriculum of the education system (Allen, 2004). His family has only relatively recently emerged from a period of oppression under The Aboriginal Protection and Restriction of the Sale of Opium Act 1897 (Genever, 1992) where the Indigenous people of Australia were denied, by the Australian Government, the right to own anything, freedom of movement, the right to practice their cultural traditions, or the right to the education required to â€Å"participate as responsible citizens† (Genever, 1992). He is caught in Australian society, within his cultural boundaries â€Å"†¦(the objective presence of cultural difference)† as discussed in McDonald’s paper on ‘Forms of Social Justice’ (2004). In no way is he served by social justice by being given the same chances I was, under the pretext of â€Å"treating us all the same†, as though we share a common identity. The development of my identity has benefited from what McIntosh (1988) terms â€Å"unearned privilege†. The life choices and chances I have, I have inherited, not struggled or worked for. I am fortunate to have a very strong family support structure within my immediate family and my extended family. Traditionally, as a family, we celebrate birthdays, special events and seek advice from one another as needed. There is a strong sense of respect for elders in my family and the younger generation bears responsibility for their well-being. Predominantly, my family follows the Catholic religion and my values and beliefs reflect this. Consequently, I have developed a strong sense of self worth through the influence of my family and their cultural practices. I am a third generation Australian. My family was middle class and although not overly wealthy in terms of material belongings I can see that my life was rich in opportunities and choices that the narrator was not afforded. I was born into an environment that set me up to be able to succeed at school. English is my first language and I speak it well enough to succeed at school and to be accepted into university. I am immersed in a society where the traditions, customs, practices and language of my heritage surround me and dominate all other identities. The practices and language used by my family were consistent with those of the schools I attended, where the autonomy and independence encouraged in Indigenous children like the narrator may have been misinterpreted and devalued as neglect (Malin, 1990). I did, however, experience a brief time in my schooling that bore a stark contrast to that described above. When I was nine years old, I attended a school in Hawaii for twelve months and for the first time in my life was part of a minority group where my language, culture and experiences were not valued by the students or the teacher. I was never asked to share anything about myself or my life in Australia and was the victim of some ridicule from my peers because I lacked knowledge of, and a skill for playing, baseball. I was subjected to racist remarks about the colour of my skin and was never supported or really even acknowledged by my teacher. As a class, we were required to write a paper detailing the history of American presidents which I found extremely difficult. The exercise held no meaning for me and I was unable to connect with it on the same level that my American peers did. My developing experience as a pre-service teacher now allows me to see the value that would have come from the teacher asking me to write my paper on the history of Australian Prime Ministers, and to share that with my teacher and the class. This would have been an opportunity for the teacher to encourage a rich, authentic learning experience for me and for my American classmates – a sharing and valuing of knowledge and cultures and an opportunity to break down some of the cultural barriers that were present within the classroom and the school. I strongly believe that education is the key to success in society and that teachers hold powerful positions with regard to recognizing and valuing the diverse groups in their classrooms. My development as a pre-service teacher depends on an ongoing commitment to value and support every student in my classroom by understanding their cultures and how their identities shift and change, have different importance amongst peers, family, and the community. I will continue to make myself aware of the role identity plays in shaping our self perceptions and, therefore, our life chances. The education system has, in the past, failed certain groups and continues to reproduce social disparities, prejudices, conditioning and spirals of failure for these groups (Keefe & Carrington, 2007). As teachers, we should not see the cultural differences of our students as excuses or reasons for students to fail. Rather, we need to adapt our teaching practices and find ways to give them access to education and opportunities. Students need to be taught to view the world, themselves and others critically in order to recognize and discontinue the perpetuation of social inequities in education and other institutions. If teachers can work towards identifying the inadequacies in teacher service, they begin to address the needs of disadvantaged groups ensuring equitable access to education, as is every student’s right. As I raise my own child and instill in him the same practices, language and culture as my family did for me, I am aware I am equipping him with that â€Å"invisible knapsack† that McIntosh (1988) writes about. I am aware that I am sending him out into a world where he does not have to carry his identity around with him like a weight around his neck, restricting him access to education, his choices, his rights and responsibilities. I do hope however as I continue to grow and learn, that I instill in him the ability to understand ‘identity’ and what that means for him and for others. As he grows and learns he will understand that if he were to be treated â€Å"the same† as many of the minority groups he lives amongst, that he too would have to struggle to maintain his identity, just like the narrator. I know that his identity will provide him with more than his share of opportunities and choices. It is clear that various cultural and traditional factors shape our unique identities. Teachers have a responsibility to recognize and value the diverse backgrounds, experiences, and knowledge that their students bring to the classroom, and to ensure that pedagogies incorporate a variety of styles to cater for this diversity. Researching this topic and reflecting on my own experiences has been a valuable exercise that will influence my teaching philosophy and the way I view identity and diversity. Compiling this essay brought back virtually forgotten memories of events I myself encountered during my schooling when I experienced a situation akin to those described by the narrator. I strongly believe that our education system must implement inclusive curriculum programs that value all cultural identities. This will ensure that all students receive educational opportunities and the chance to develop self respect and positive dispositions towards learning, thus enhancing life chances and empowering them to succeed. . References: Allen, J. (2004). Sociology of Education: Possibilities and Practices. (3rd Ed). Southbank, VIC: Social Science Press. Austin, J. (Ed. ). (2005). Culture and Identity (2nd ed. , pp 139-154). Sydney: Pearson Education Australia. Genever, T. (1992). Black and Blue. Aboriginal-Police Relations in Far North Queensland During The Currency of The Aboriginals Protection and Restriction of the Sale of Opium Act 1893 – 1939. Unpublished Honours Thesis, JCU, Tsv. Keefe, M. , & Carrington, S. (Eds. ). (2007). Schools and Diversity (2nd ed. , pp 108 – 127). Sydney: Pearson Education Australia. McDonald, H. , (2004). Forms of social justice. Notes prepared for teacher education students. Townsville: James Cook University. McDonald, H. , (2004). Supporting Indigenous students as â€Å"smart, not good† knowers and learners: The practices of two teachers. Paper adapted for exclusive use of students enrolled in ED2990 and ED3290 at James Cook University. McDonald, M. , & Pryor, B. M. , (1999). The binna binna man. Crows Nest. NSW: Allen & Unwin. McIntosh, P. (1988). White privilege: unpacking the invisible knapsack. Available from http://seamonkey. ed. asu. edu/~mcisaac/emc598ge/Unpacking. html (Accessed 17 September 2008). Malin , M. (1990). â€Å"Why is life so hard for Aboriginal students in urban classrooms? † The Aboriginal Child at School, 18 (1), 9-29.

Essay on Sir Gawain and the Green Knight

Essay on Sir Gawain and the Green Knight Essay on Sir Gawain and the Green Knight Sir Gawain and the Green Knight essay: This essay discusses in depth the personality of Sir Gawain as depicted by the author Marie Borroff in her book ‘Sir Gawain and the Green Knight’. By elucidating the outstanding traits of Sir Gawain, we shall show how rightly he has been claimed as the protagonist of the story, and how prominent qualities in his character make him so distinguishing from the rest of contemporary knights of King Arthur’s round table. Sir Gawain After a close study of the book ‘Sir Gawain and the Green Knight’ the traits of Sir Gawain as mentioned in the ensuing paragraphs make him the most prominent of all the knights in the Camelot of King Arthur. Faith in God and Religious Devotion The theme of religion can be well drawn from words of Gawain about his encounters depicting him as a religious man, a religious man who puts his faith in God’s care and acknowledges that he is protected. The words of the knight are filled with vigor in respect to the fate ahead of him. The fact was that the blow dealt to the green knight would be reciprocated to the participant in the game. Gawain struck the knights head off, and this was the fate he was entitled to face though with an assurance of regeneration after certain duration and this was a source of motivation for Gawain’s action. Chivalry Loyalty Gawain is a knight; he is expected to protect the king from all harm regardless of the situation. The king endangers his life by accepting to participate in a dangerous game. Sir Gawain steps up to protect the king as expected. This is the theme of chivalry used in the poem to ensure relational poetry. In the Lords castle, Gawain refuses temptations from the Host’s wife. This shows Gawain is a man of honor and respects His Lords hospitality. Accepting such advances would discredit his honor and disrespect his host. The Chivalry theme is conflicted when Gawain finds himself in a dilemma. The advances from the Lady of the house and respect for the Lord put him in a difficult position. Being a knight of the round table, ideals of chivalry are upheld with the brothers of the round table offering to share it on the burden carried by Gawain. Chivalry refers to the individuals actions in relation to the societal acceptable behavior. The knight behaves according to his expectation ensuring a balance in responsibility and expectations in the community. The theme ensures continuity in the poem, and understanding of the hierarchical relationship issues in the society. Thus the occasions on which Sir Gawain has been shown to display his loyalty and chivalry were the moments when King Arthur had accepted the challenge of the Green Knight all by himself and was about to pick the ax to behead the Green Knight when suddenly Sir Gawain leapt to replace his master and took the challenge himself. He displayed tremendous loyalty in sacrificing his life just to save the King Arthur who was also Gawain’s Uncle in blood relation. Keeping Promises Gawain has been depicted as a man of words, a person who always kept his promises. Gawain fulfilled the promise which he made with the Green Knight when the former beheaded the latter with ax. Another instance proving Gawain to be a man of words is that he responded truthfully to his host by then known to him only by the name Bertilak, the lord of the castle where he stayed. He had made promise with his host to return to him what he gets each day, so he gave him the number of kisses in return, which the wife of Bertilak gave to Gawain each day. Chastity Integrity Gawain is essentially an honorable knight who always followed the path of truth not fearing for the consequences. The fact that Gawain did not respond to the sexual and seductive attempts on him from the wife of his host proves that he cared much for his honor and is not essentially a man of lose character. When once he made a mistake by accepting the green silk girdle from his hostess as a token of magical power to avert death, he felt guilty of committing such a low act that was not worthy of a religious and honorable man. Then he tied the green silk girdle around his arm so as to display his courage of convictions and his guts to admit his own fault. Profound Insight into the Realities of Life Sir Gawain has been depicted in the book as a knight who has much insight into the hard facts of life. He knows deeply how the varying circumstances in man’s life may affect his temperament and mood. So he believes that one must not continue to delve in the present situation though it could be at the height of joy, ecstasy or merriment. He knows that there is other side of the picture which is associated with adversaries. Gawain displays this insight when during the most rejoicing moments in the court of King Arthur on the occasion of New Year’s Eve while all are busy enjoying the feast, it is states in words quote: Gawain was glad to begin those games in hall, But if the end be harsher, hold it no wonder, For though men are merry in mind after much drink, A year passes apace, and proves ever new: First things and final conform but seldom. (495–499) And it happened as it was perceived in the above passage. Exactly a year after Gawain had to set out in search of the Green Chapel facing a lot of hardships and adversaries on the way and during the most hazardous journey. He was consumed with serious thoughts and surrounded all over by worries and about his fate prophesized by the Green Knight one year before when Gawain chopped off his head with ax. CONCLUSION It is said very rightly that both virtues and evils speak for themselves. A man with good nature and divinely qualities will exhibit actions that are virtuous and honest, while a person afflicted with evil elements will exhibit actions that are wicked and nasty. Same is the case with Sir Gawain who is essentially a man of divinely attributes as depicted in the book Sir Gawain and the Green Knight. And thus Sir Gawain always acted in the right direction and followed the path of integrity, loyalty, truthfulness, faith in God and Chivalry. At you can easily buy essays from experts on this topic. All custom essays are written by certified academic writers. Non-plagiarized essays with timely delivery.

A bad hair day Essays

A bad hair day Essays A bad hair day Paper A bad hair day Paper A bad hair day I can never forget how my mom embarrassed me when I was in fourth grade. My mom had Just finished her training from beauty school and wanted to practice on giving haircuts. One day after school I had no choice but became the first of hers. She said my hair was too long to take care of and she had to cut my hair today because she was tired of seeing my hair everywhere in the house. I agreed with her and decided it was time to let go of my pony tail. She grabbed a chair from the dining room and laid out all the professional tools she bought from beauty school. As soon as I sat down on the chair she quickly pinned a shiny black cape at my neck and picked up a comb and a spray bottle. l learned how to do the famous Audrey Hepburn pixie crop in Roman holiday, She said while combing through my hair and spraying cold water on it. The next thing I noticed was she took a huge chunk of hair on my left side and sniped off right above my ear. No! I dont want my hair too short! I Jerked my head to the right side and screamed. Stop moving or I will cut your ear! She yelled at me and centered my head back again. Due to the strict Asian parenting, rebellion would get me in trouble. So I kept quiet and had my arms crossed under the cape while she continued cutting away at my hair. I peered over as she put down the scissors and asked anxiously: Can I see it? Not yet. She replied and picked up an electric clipper, Its a little uneven in the back, but Im goanna fix it. She titled my head down with force and started to shave around my ear towards my nape. I had a terrible feeling this was going to be a disaster but out of respect I didnt say anything. And my thought was confirmed when I saw my reflection in the mirror: I didnt know what Audrey Hepburn pixie crop looks like but I looked like a boy wearing a coconut helmet. My bangs were more than an inch above my eyebrows! I reached up to feel the back of my head and I quivered at the feel of short thorny hair. l look like a boy! I cant go to school like this! I broke down into tears. Bullwhip, Just wear a dress tomorrow, moms face turned a little red and scolded at me, Stop being ridiculous. I went to school the next day in a white dots red summer dress that my mom made me wear. On my way to school, every step I took I felt extremely self unconscious. I kept my head down as I walked into the classroom and hoped no one was looking. But the stupid dress put me under the spot light and immediately all of my classmates broke out laughing. I overheard some guy from my class said why a boy is wearing a girls dress. I was so embarrassed and I wanted to disappear. I really hoped I didnt wear that dress. The haircut was bad enough and dress made it worse! I dont remember how did I get through the day, but all I remember was I didnt wear any dresses for a long time after that and I never let my mom cut my hair again.

The Basics of Magnetic Levitated Trains (Maglev)

The Basics of Magnetic Levitated Trains (Maglev) Magnetic levitation (maglev) is a relatively new transportation technology in which non-contacting vehicles travel safely at speeds of 250 to 300 miles-per-hour or higher while suspended, guided, and propelled above a guideway by magnetic fields. The guideway is the physical structure along which maglev vehicles are levitated. Various guideway configurations, e.g., T-shaped, U-shaped, Y-shaped, and box-beam, made of steel, concrete, or aluminum, have been proposed. There are three primary functions basic to maglev technology: (1) levitation or suspension; (2) propulsion; and (3) guidance. In most current designs, magnetic forces are used to perform all three functions, although a nonmagnetic source of propulsion could be used. No consensus exists on an optimum design to perform each of the primary functions. Suspension Systems Electromagnetic suspension (EMS) is an attractive force levitation system whereby electromagnets on the vehicle interact with and are attracted to ferromagnetic rails on the guideway. EMS was made practical by advances in electronic control systems that maintain the air gap between vehicle and guideway, thus preventing contact. Variations in payload weight, dynamic loads, and guideway irregularities are compensated for by changing the magnetic field in response to vehicle/guideway air gap measurements. Electrodynamic suspension (EDS) employs magnets on the moving vehicle to induce currents in the guideway. Resulting repulsive force produces inherently stable vehicle support and guidance because the magnetic repulsion increases as the vehicle/guideway gap decreases. However, the vehicle must be equipped with wheels or other forms of support for takeoff and landing because the EDS will not levitate at speeds below approximately 25 mph. EDS has progressed with advances in cryogenics and superconducting magnet technology. Propulsion Systems Long-stator propulsion using an electrically powered linear motor winding in the guideway appears to be the favored option for high-speed maglev systems. It is also the most expensive because of higher guideway construction costs. Short-stator propulsion uses a linear induction motor (LIM) winding onboard and a passive guideway. While short-stator propulsion reduces guideway costs, the LIM is heavy and reduces vehicle payload capacity, resulting in higher operating costs and lower revenue potential compared to the long-stator propulsion. A third alternative is a nonmagnetic energy source (gas turbine or turboprop) but this, too, results in a heavy vehicle and reduced operating efficiency. Guidance Systems Guidance or steering refers to the sideward forces that are required to make the vehicle follow the guideway. The necessary forces are supplied in an exactly analogous fashion to the suspension forces, either attractive or repulsive. The same magnets on board the vehicle, which supply lift, can be used concurrently for guidance or separate guidance magnets can be used. Maglev and U.S. Transportation Maglev systems could offer an attractive transportation alternative for many time-sensitive trips of 100 to 600 miles in length, thereby reducing air and highway congestion, air pollution, and energy use, and releasing slots for more efficient long-haul service at crowded airports. The potential value of maglev technology was recognized in the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA). Before the passage of the ISTEA, Congress had appropriated $26.2 million to identify maglev system concepts for use in the United States and to assess the technical and economic feasibility of these systems. Studies were also directed toward determining the role of maglev in improving intercity transportation in the United States. Subsequently, an additional $9.8 million was appropriated to complete the NMI Studies. Why Maglev? What are the attributes of maglev that commend its consideration by transportation planners? Faster trips - high peak speed and high acceleration/braking enable average speeds three to four times the national highway speed limit of 65 mph (30 m/s) and lower door-to-door trip time than high-speed rail or air (for trips under about 300 miles or 500 km). Still higher speeds are feasible. Maglev takes up where high-speed rail leaves off, permitting speeds of 250 to 300 mph (112 to 134 m/s) and higher. Maglev has high reliability and less susceptible to congestion and weather conditions than air or highway travel. Variance from schedule can average less than one minute based on foreign high-speed rail experience. This means intra and intermodal connecting times can be reduced to a few minutes (rather than the half-hour or more required with airlines and Amtrak at present) and that appointments can safely be scheduled without having to consider delays. Maglev gives petroleum independence - with respect to air and auto because of Maglev being electrically powered. Petroleum is unnecessary for the production of electricity. In 1990, less than 5 percent of the Nations electricity was derived from petroleum whereas the petroleum used by both the air and automobile modes comes primarily from foreign sources. Maglev is less polluting - with respect to air and auto, again because of being electrically powered. Emissions can be controlled more effectively at the source of electric power generation than at the many points of consumption, such as with air and automobile usage. Maglev has a higher capacity than air travel with at least 12,000 passengers per hour in each direction. There is the potential for even higher capacities at 3 to 4-minute headways. Maglev provides sufficient capacity to accommodate traffic growth well into the twenty-first century and to provide an alternative to air and auto in the event of an oil availability crisis. Maglev has high safety - both perceived and actual, based on foreign experience. Maglev has convenience - due to a high frequency of service and the ability to serve central business districts, airports, and other major metropolitan area nodes. Maglev has improved comfort - with respect to air due to greater roominess, which allows separate dining and conference areas with the freedom to move around. The absence of air turbulence ensures a consistently smooth ride. Maglev Evolution The concept of magnetically levitated trains was first identified at the turn of the century by two Americans, Robert Goddard, and Emile Bachelet. By the 1930s, Germanys Hermann Kemper was developing a concept and demonstrating the use of magnetic fields to combine the advantages of trains and airplanes. In 1968, Americans James R. Powell and Gordon T. Danby were granted a patent on their design for a magnetic levitation train. Under the High-Speed Ground Transportation Act of 1965, the FRA funded a wide range of research into all forms of HSGT through the early 1970s. In 1971, the FRA awarded contracts to the Ford Motor Company and the Stanford Research Institute for analytical and experimental development of EMS and EDS systems. FRA-sponsored research led to the development of the linear electrical motor, the motive power used by all current maglev prototypes. In 1975, after Federal funding for high-speed maglev research in the United States was suspended, industry virtually abandoned its interest in maglev; however, research in low-speed maglev continued in the United States until 1986. Over the past two decades, research and development programs in maglev technology have been conducted by several countries including Great Britain, Canada, Germany, and Japan. Germany and Japan have invested over $1 billion each to develop and demonstrate maglev technology for HSGT. The German EMS maglev design, Transrapid (TR07), was certified for operation by the German Government in December 1991. A maglev line between Hamburg and Berlin is under consideration in Germany with private financing and potentially with additional support from individual states in northern Germany along the proposed route. The line would connect with the high-speed Intercity Express (ICE) train as well as conventional trains. The TR07 has been tested extensively in Emsland, Germany, and is the only high-speed maglev system in the world ready for revenue service. The TR07 is planned for implementation in Orlando, Florida. The EDS concept under development in Japan uses a superconducting magnet system. A decision will be made in 1997 whether to use maglev for the new Chuo line between Tokyo and Osaka. The National Maglev Initiative (NMI) Since the termination of Federal support in 1975, there was little research into high-speed maglev technology in the United States until 1990 when the National Maglev Initiative (NMI) was established. The NMI is a cooperative effort of the FRA of the DOT, the USACE, and the DOE, with support from other agencies. The purpose of the NMI was to evaluate the potential for maglev to improve intercity transportation and to develop the information necessary for the Administration and the Congress to determine the appropriate role for the Federal Government in advancing this technology. In fact, from its inception, the U.S. Government has aided and promoted innovative transportation for economic, political, and social development reasons. There are numerous examples. In the nineteenth century, the Federal Government encouraged railroad development to establish transcontinental links through such actions as the massive land grant to the Illinois Central-Mobile Ohio Railroads in 1850. Beginning in the 1920s, the Federal Government provided commercial stimulus to the new technology of aviation through contracts for airmail routes and funds that paid for emergency landing fields, route lighting, weather reporting, and communications. Later in the 20th century, Federal funds were used to construct the Interstate Highway System and assist States and municipalities in the construction and operation of airports. In 1971, the Federal Government formed Amtrak to ensure rail passenger service for the United States. Assessment of Maglev Technology In order to determine the technical feasibility of deploying maglev in the United States, the NMI Office performed a comprehensive assessment of the state-of-the-art of maglev technology. Over the past two decades, various ground transportation systems have been developed overseas, having operational speeds in excess of 150 mph (67 m/s), compared to 125 mph (56 m/s) for the U.S. Metroliner. Several steel-wheel-on-rail trains can maintain a speed of 167 to 186 mph (75 to 83 m/s), most notably the Japanese Series 300 Shinkansen, the German ICE, and the French TGV. The German Transrapid Maglev train has demonstrated a speed of 270 mph (121 m/s) on a test track, and the Japanese have operated a maglev test car at 321 mph (144 m/s). The following are descriptions of the French, German, and Japanese systems used for comparison to the U.S. Maglev (USML) SCD concepts.  Ã‚   French Train a Grande Vitesse (TGV) The French National Railways TGV is representative of the current generation of high-speed, steel-wheel-on-rail trains. The TGV has been in service for 12 years on the Paris-Lyon (PSE) route and for 3 years on an initial portion of the Paris-Bordeaux (Atlantique) route. The Atlantique train consists of ten passenger cars with a power car at each end.   The power cars use synchronous rotary traction motors for propulsion. Roof-mounted pantographs collect electric power from an overhead catenary. Cruise speed is 186 mph (83 m/s). The train is non-tilting and, thus, requires a reasonably straight route alignment to sustain high speed. Although the operator controls the train speed, interlocks exist including automatic overspeed protection and enforced braking. Braking is by a combination of rheostat brakes and axle-mounted disc brakes. All axles possess antilock braking. Power axles have anti-slip control. The TGV track structure is that of a conventional standard-gauge railroad with a well-engineered base (compacted granular materials). The track consists of continuous-welded rail on concrete/steel ties with elastic fasteners. Its high-speed switch is a conventional swing-nose turnout. The TGV operates on pre-existing tracks, but at a substantially reduced speed. Because of its high speed, high power, and anti wheel slip control, the TGV can climb grades that are about twice as great as normal in U.S. railroad practice and, thus, can follow the gently rolling terrain of France without extensive and expensive viaducts and tunnels. German TR07 The German TR07 is the high-speed Maglev system nearest to commercial readiness. If financing can be obtained, groundbreaking will take place in Florida in 1993 for a 14-mile (23 km) shuttle between Orlando International Airport and the amusement zone at International Drive. The TR07 system is also under consideration for a high-speed link between Hamburg and Berlin and between downtown Pittsburgh and the airport. As the designation suggests, TR07 was preceded by at least six earlier models. In the early seventies, German firms, including Krauss-Maffei, MBB, and Siemens, tested full-scale versions of an air cushion vehicle (TR03) and a repulsion maglev vehicle using superconducting magnets. After a decision was made to concentrate on attraction maglev in 1977, advancement proceeded in significant increments, with the system evolving from linear induction motor (LIM) propulsion with wayside power collection to the linear synchronous motor (LSM), which employs variable frequency, elect rically powered coils on the guideway. TR05 functioned as a people mover at the International Traffic Fair Hamburg in 1979, carrying 50,000 passengers and providing valuable operating experience. The TR07, which operates on 19.6 miles (31.5 km) of guideway at the Emsland test track in northwest Germany, is the culmination of nearly 25 years of German Maglev development, costing over $1 billion. It is a sophisticated EMS system, using separate conventional iron-core attracting electromagnets to generate vehicle lift and guidance. The vehicle wraps around a T-shaped guideway. The TR07 guideway uses steel or concrete beams constructed and erected to very tight tolerances. Control systems regulate levitation and guidance forces to maintain an inch gap (8 to 10 mm) between the magnets and the iron tracks on the guideway. The attraction between vehicle magnets and edge-mounted guideway rails provide guidance. The attraction between a second set of vehicle magnets and the propulsion stator packs underneath the guideway generate lift. The lift magnets also serve as the secondary or rotor of an LSM, whose primary or stator is an electrical winding running the length of the guideway. T R07 uses two or more non-tilting vehicles in a consist. TR07 propulsion is by a long-stator LSM. Guideway stator windings generate a traveling wave that interacts with the vehicle levitation magnets for synchronous propulsion. Centrally controlled wayside stations provide the requisite variable-frequency, variable-voltage power to the LSM. Primary braking is regenerative through the LSM, with eddy-current braking and high-friction skids for emergencies. TR07 has demonstrated safe operation at 270 mph (121 m/s) on the Emsland track. It is designed for cruise speeds of 311 mph (139 m/s). Japanese High-Speed Maglev The Japanese have spent over $1 billion developing both attraction and repulsion maglev systems. The HSST attraction system, developed by a consortium often identified with Japan Airlines, is actually a series of vehicles designed for 100, 200, and 300 km/h. Sixty miles-per-hour (100 km/h) HSST Maglevs have transported over two million passengers at several Expos in Japan and the 1989 Canada Transport Expo in Vancouver. The high-speed Japanese repulsion Maglev system is under development by Railway Technical Research Institute (RTRI), the research arm of the newly privatized Japan Rail Group. RTRIs ML500 research vehicle achieved the world high-speed guided ground vehicle record of 321 mph (144 m/s) in December 1979, a record that still stands, although a specially modified French TGV rail train has come close. A manned three-car MLU001 began testing in 1982. Subsequently, the single car MLU002 was destroyed by fire in 1991. Its replacement, the MLU002N, is being used to test the sid ewall levitation that is planned for eventual revenue system use. The principal activity at present is the construction of a $2 billion, 27-mile (43 km) maglev test line through the mountains of Yamanashi Prefecture, where testing of a revenue prototype is scheduled to commence in 1994. The Central Japan Railway Company plans to begin building a second high-speed line from Tokyo to Osaka on a new route (including the Yamanashi test section) starting in 1997. This will provide relief for the highly profitable Tokaido Shinkansen, which is nearing saturation and needs rehabilitation. To provide ever improving service, as well as to forestall encroachment by the airlines on its present 85 percent market share, higher speeds than the present 171 mph (76 m/s) are regarded as necessary. Although the design speed of the first generation maglev system is 311 mph (139 m/s), speeds up to 500 mph (223 m/s) are projected for future systems. Repulsion maglev has been chosen over attraction maglev because of its reputed higher speed potential and because the larger air gap accommodates the ground motion experienced in Japans earthquake-prone territory. The design of Japans repulsion system is not firm. A 1991 cost estimate by Japans Central Railway Company, which would own the lin e, indicates that the new high-speed line through the mountainous terrain north of Mt. Fuji would be very expensive, about $100 million per mile (8 million yen per meter) for a conventional railway. A maglev system would cost 25 percent more. A significant part of the expense is the cost of acquiring surface and subsurface ROW. Knowledge of the technical details of Japans high-speed Maglev is sparse. What is known is that it will have superconducting magnets in bogies with sidewall levitation, linear synchronous propulsion using guideway coils, and a cruise speed of 311 mph (139 m/s). U.S. Contractors Maglev Concepts (SCDs) Three of the four SCD concepts use an EDS system in which superconducting magnets on the vehicle induce repulsive lift and guidance forces through movement along a system of passive conductors mounted on the guideway. The fourth SCD concept uses an EMS system similar to the German TR07. In this concept, attraction forces generate lift and guide the vehicle along the guideway. However, unlike TR07, which uses conventional magnets, the attraction forces of the SCD EMS concept are produced by superconducting magnets. The following individual descriptions highlight the significant features of the four U.S. SCDs. Bechtel SCD The Bechtel concept is an EDS system that uses a novel configuration of vehicle-mounted, flux-canceling magnets.   The vehicle contains six sets of eight superconducting magnets per side and straddles a concrete box-beam guideway. An interaction between the vehicle magnets and a laminated aluminum ladder on each guideway sidewall generates lift. A similar interaction with guideway mounted null flux coils provides guidance. LSM propulsion windings, also attached to the guideway sidewalls, interact with vehicle magnets to produce thrust. Centrally controlled wayside stations provide the required variable-frequency, variable-voltage power to the LSM. The Bechtel vehicle consists of a single car with an inner tilting shell. It uses aerodynamic control surfaces to augment magnetic guidance forces. In an emergency, it levitates onto air-bearing pads. The guideway consists of a post-tensioned concrete box girder. Because of high magnetic fields, the concept calls for nonmagnetic, fiber-re inforced plastic (FRP) post-tensioning rods and stirrups in the upper portion of the box beam. The switch is a bendable beam constructed entirely of FRP. Foster-Miller SCD The Foster-Miller concept is an EDS similar to the Japanese high-speed Maglev but has some additional features to improve potential performance. The Foster-Miller concept has a vehicle tilting design that would allow it to operate through curves faster than the Japanese system for the same level of passenger comfort. Like the Japanese system, the Foster-Miller concept uses superconducting vehicle magnets to generate lift by interacting with null-flux levitation coils located in the sidewalls of a U-shaped guideway. Magnet interaction with guideway-mounted, electrical propulsion coils provides null-flux guidance. Its innovative propulsion scheme is called a locally commutated linear synchronous motor (LCLSM). Individual H-bridge inverters sequentially energize propulsion coils directly under the bogies. The inverters synthesize a magnetic wave that travels along the guideway at the same speed as the vehicle. The Foster-Miller vehicle is composed of articulated passenger modules and ta il and nose sections that create multiple-car consists. The modules have magnet bogies at each end that they share with adjacent cars. Each bogie contains four magnets per side. The U-shaped guideway consists of two parallel, post-tensioned concrete beams joined transversely by precast concrete diaphragms. To avoid adverse magnetic effects, the upper post-tensioning rods are FRP. The high-speed switch uses switched null-flux coils to guide the vehicle through a vertical turnout. Thus, the Foster-Miller switch requires no moving structural members. Grumman SCD The Grumman concept is an EMS with similarities to the German TR07. However, Grummans vehicles wrap around a Y-shaped guideway and use a common set of vehicle magnets for levitation, propulsion, and guidance.   Guideway rails are ferromagnetic and have LSM windings for propulsion. The vehicle magnets are superconducting coils around horseshoe-shaped iron cores. The pole faces are attracted to iron rails on the underside of the guideway. Nonsuperconducting control coils on each iron-core leg modulate levitation and guidance forces to maintain a 1.6-inch (40 mm) air gap. No secondary suspension is required to maintain adequate ride quality. Propulsion is by conventional LSM embedded in the guideway rail. Grumman vehicles may be single or multi-car consists with tilt capability. The innovative guideway superstructure consists of slender Y-shaped guideway sections (one for each direction) mounted by outriggers every 15-feet to a 90-foot (4.5 m to a 27 m) spline girder. The structural s pline girder serves both directions. Switching is accomplished with a TR07-style bending guideway beam, shortened by use of a sliding or rotating section. Magneplane SCD The Magneplane concept is a single-vehicle EDS using a trough-shaped 0.8-inch (20 mm) thick aluminum guideway for sheet levitation and guidance. Magneplane vehicles can self-bank up to 45 degrees in curves. Earlier laboratory work on this concept validated the levitation, guidance, and propulsion schemes. Superconducting levitation and propulsion magnets are grouped in bogies at the front and rear of the vehicle. The centerline magnets interact with conventional LSM windings for propulsion and generate some electromagnetic roll-righting torque called the keel effect. The magnets on the sides of each bogie react against the aluminum guideway sheets to provide levitation. The Magneplane vehicle uses aerodynamic control surfaces to provide active motion damping. The aluminum levitation sheets in the guideway trough form the tops of two structural aluminum box beams. These box beams are supported directly on piers. The high-speed switch uses switched null-flux coils to guide the vehicle through a fork in the guideway trough. Thus, the Magneplane switch requires no moving structural members. Sources: Sources:  National Transportation Library  http://ntl.bts.gov/

Osteoporosisa Essay Example | Topics and Well Written Essays - 250 words - 1

Osteoporosisa - Essay Example As such, the cream will contribute remarkably in healing and prevent the spread of such controversial issue. It is from this undertaking that potential will be saved from long term dangers once they make use of the cream. Worth noting, this cream adds value to customers either affected or not affected. Although not all bones are movable, some bones like hip, shoulder, and others allow one to sit, move, and stand. Application of the cream allows for blood cell production since the bones remain healthy. This shows the value the cream adds to customers and boosts their ultimate feeling about health. Why this selection is critical is the importance of bones to the human body and survival. As previously stated, bones are crucial in human life. According to scientists, for a human being to be classified as normal, such person should have 206 bones, all which play a key role in the body. It is worth noting that human bones are not static and grow from time to time, during this growth, the cream will work positively towards ensuring that the health of such is guaranteed. Those with the belief that bones help to give the body is shape should understand that the role extends beyond that (37). With a brand that helps heal a critical disease and maintains the health of bones, every potential employer should note the impact I can add to the progress of their company. It is true that any disease associated to bones should be healed once noticed lest it becomes incurable and hence terminal. With this in mind, the employer must consider the reputation such a realization will add to their company from the speculative clients. Further, this is a cream that will go international making the company global. Lastly, with such a realization, it is possible to have other innovations as time goes

Marketing Plan for Kindle Fire Assignment Example | Topics and Well Written Essays - 2000 words

Marketing Plan for Kindle Fire - Assignment Example The main characteristic features of this device are, book reading, blogs, newspapers and all important documents, it mostly supports the portable document format (P.D.F) along with various other formats. Different models have been introduced since the beginning starting from the earlier one, followed by DX in 2009, and now the most recent one being the Kindle Fire. With less than couple of years in market it has made a lot of progress and at the same time it needs to address certain issues, and since after the launch many factors have come to forefront therefore this paper looks at the marketing perspective of Kindle Fire. Kindle fire is seen as a beginning of new era in the world of e-book device from Amazon since its considered as the rival to the Apple’s already in market I-pad .With Fire edition, it was the first time since Amazon introduced colored screens in their e book readers.. It provides access to thousands of movies, over a million books. With help of Premier membership access to lots of free stream material becomes possible. It is being stated as the insurgent that has blown I-pad out of the water. It is being dubbed as I-pad killer and with such a formidable package and features it is certainly going to present a challenge to the existing players in the game.The fire edition would serve as outsider force in the industry since it is totally revamped and a new look to the previous versions of Kindle. It is built on Android operating system and hence a complete infrastructure based kernel running the application programs. It runs on Android 2.3 version of the O.S. It provides a batte ry time of as long as eight hours and supports all three variants of Wi-Fi, that are, b/n/g. It has a dual core processor with clock speed of 1 G-hertz. (McNulty, S. 2011). Financial Statistics: in the category of tablets Apple is the chart leader, but Kindle is not

HR Assignment Example | Topics and Well Written Essays - 250 words - 2

HR - Assignment Example Effective change management is the driving force behind any successful organization. In an organization that staff always resist any proposed change, the ultimate results are backwardness and a stagnant organization that cannot undertake any innovative product development (Creasey & Hiatt, 2003). Such firms cannot stand fiercely competitive environment and the collapse are an obvious outcome. As a result, the event will take the staff through the outstanding benefits of accepting change within the organization. An organization that can influence its staff to accept and harmoniously implement change will remain relevant amidst the competition levels within an industry. In addition, the workforce benefits greatly as sale volume rises beside attracting and retaining more customers. Such workforce can thus get better remuneration packages thus increased living standards. A motivated worker gives his all in the organization leading to ever rising firm’s productivity that increasingly facilitates better wage and other motivational packages to workers. Thus, staff must embrace a readiness to change

Historical Documentary of Civil War Movie Review

Historical Documentary of Civil War - Movie Review Example The films show the war in different manners and applying different methods, and it is rather interesting to compare some of them. The aim of this paper is to compare such memorable documentaries about the Civil War as The Civil War of Ken Burns, Gettysburg Stories of Valor - CIVIL WAR MINUTESTM III by Keith Carradine and The Last Days of the Civil War. The paper will compare and contrast these films and show the importance of the documentaries for our understanding of American history and its main features, characters and events, as well as explain and evaluate how they are useful and not useful in their representation of history through television. 2. The Civil War of Ken Burns is a significant example of historical documentary. The filmmakers showed the Civil War with photos, voices of people who lived through the war and informative narration that helped spectators to feel the sense of epoch and time. In addition to that, Ken Burns "often gives life to still photographs by slowly zooming-in on subjects of interest and panning from one subject to another" (Ken Burns, From Wikipedia). This effect gives spectators a good opportunity to trace the main features of the film objects and events. The film consists of nine episodes and also includes about sixteen thousand photos, images, newspaper paintings, anecdotes and insights of different historians. It covers the period from the beginning of the war with the explanations of its causes till the end of the Civil War in 1865. Ken Burns underlined that "It was something that also became a kind of 'emotional archaeology,' trying to unearth the very heart of the American experience" ( Why I decided to make The Civil War). The film photos, as well as the narration give a good notion of the Civil War events and characters - so, the film is rather useful in its representation of the Civil war and American history in general. While watching the film, people can get a vivid understanding of real war characters and events - it is very important for those who are interested in American history. Such documentaries have in general very positive significance - they develop young people's historical knowledge and induce them to be proud of their country and their heroes, and television can play one of the main roles in this process. The Ken Burns' film The Civil War proves this statement - people have an opportunity to understand the historical process, find appropriate parallels with contemporary history events and analyze the events from the historical point of view. Television is a great instrument for people's education (especially for youth), and such documentaries whe re real pictures and impressions of real people are clearly shown can promote our interest for history. Documentary films (such as Ken Burns' The Civil War) can give an evident picture of the Civil War, and from this point of view documentary films differ from historical books. In addition to that, television and media technology play growing role in our understanding of historical and as follows world problems and

Substance abuse Essay Example | Topics and Well Written Essays - 500 words

Substance abuse - Essay Example There are various other substances which can be abused like: cocaine, marijuana, opiates, steroid, inhalants, and tobacco (refer Fig A). Under the manual guidelines published by WHO and the American Psychiatric Association (APA), the term ‘drug abuse’ is not official anymore; instead they have opted for the term ‘substance abuse’ that in its nature and scope includes the term drug abuse. According to APA (1932), the term drug abuse can be applicable â€Å"to the illegal, nonmedical use of a limited number of substances, most of them drugs, which have properties of altering the mental state in ways that are considered by social norms and defined by statute to be inappropriate, undesirable, harmful, threatening, or, at minimum, culture-alien" (Glasscote, et al., 1932). However, we find that in 1973, the National Commission on Marijuana and Drug Abuse, recommended the removal of the term ‘drug abuse’ from official documents; stating that the term refers to only social disapproval, and actually has no relevant scientific meaning. The Commission states â€Å"drug abuse may refer to any type of drug or chemical without regard to its pharmacologic actions...The Commission believes that the term drug abuse must be deleted from official pronouncements and public policy dialogue. The term has no functional utility and has become no more than an arbitrary codeword for that drug use which is presently considered wrong†. According to Diagnostic and Statistical Manual of Mental Disorders  (DSM-IV-TR), substance dependence can be termed as â€Å"When an individual persists in use of alcohol or other drugs despite problems related to use of the substance,  substance dependence  may be diagnosed. Compulsive and repetitive use may result in tolerance to the effect of the drug and withdrawal symptoms when use is reduced or stopped† (APA, 2000). Chemical dependence is the same thing as substance dependence,

Critically assess the theoretical and practical debates about Essay

Critically assess the theoretical and practical debates about stakeholding focussing either on the basic income or asset aspects. Address the issues in the context of a particular society of your choice - Essay Example The concept of stakeholding stipulates that every citizen upon attainment of an adulthood age, 21 years as proposed by Ackerman and Alstott, should receive a considerable lump sum one-time grant from the government. The amount given should be sufficient to qualify one as a significant wealth owner. Ackerman and Alstott recommended that the amount should total $80,000 in the United States (Ackerman et al, 2006). This essay is aimed at critically assessing the theoretical and practical debates concerning stakeholders grant in relation to basic income or assets. The Presented discussion will be addressed in the context of African American society in the United States. The need for contemporary public policies has been necessitated by the transformative nature of the current labour market. Sherraden (2005) argued that market risks no longer impact directly on collective intermediary, government and insurance institutions but affects individuals and consequently their families. The current framework of social welfare has proved ineffective as witnessed from the deterioration of means tested program systems and lack of will by the governing institutions. Therefore, Ackerman and Alstott noted that the introduction of stakeholding would lead to progressive redistribution of wealth among members of the society (Ackerman et al, 2006). According to Paxton and White (2005), social policy campaign by egalitarian crusaders of has been focused on the redistribution of resource ownership. Proponents of stakeholding as form of social policy argues that highly privileged individuals inherit wealth from their parents while children from poor backgrounds are like ly to continue languishing due to absence of inheritance. In such a scenario, underprivileged African Americans have been left without prerequisite resources to attend colleges and universities. Arguments by Ackerman and Alstott have been evidenced by the extent of income disparity between

Substance abuse Essay Example | Topics and Well Written Essays - 500 words

Substance abuse - Essay Example There are various other substances which can be abused like: cocaine, marijuana, opiates, steroid, inhalants, and tobacco (refer Fig A). Under the manual guidelines published by WHO and the American Psychiatric Association (APA), the term ‘drug abuse’ is not official anymore; instead they have opted for the term ‘substance abuse’ that in its nature and scope includes the term drug abuse. According to APA (1932), the term drug abuse can be applicable â€Å"to the illegal, nonmedical use of a limited number of substances, most of them drugs, which have properties of altering the mental state in ways that are considered by social norms and defined by statute to be inappropriate, undesirable, harmful, threatening, or, at minimum, culture-alien" (Glasscote, et al., 1932). However, we find that in 1973, the National Commission on Marijuana and Drug Abuse, recommended the removal of the term ‘drug abuse’ from official documents; stating that the term refers to only social disapproval, and actually has no relevant scientific meaning. The Commission states â€Å"drug abuse may refer to any type of drug or chemical without regard to its pharmacologic actions...The Commission believes that the term drug abuse must be deleted from official pronouncements and public policy dialogue. The term has no functional utility and has become no more than an arbitrary codeword for that drug use which is presently considered wrong†. According to Diagnostic and Statistical Manual of Mental Disorders  (DSM-IV-TR), substance dependence can be termed as â€Å"When an individual persists in use of alcohol or other drugs despite problems related to use of the substance,  substance dependence  may be diagnosed. Compulsive and repetitive use may result in tolerance to the effect of the drug and withdrawal symptoms when use is reduced or stopped† (APA, 2000). Chemical dependence is the same thing as substance dependence,

The duty to accommodate the injured and the disabled employees Essay

The duty to accommodate the injured and the disabled employees - Essay Example Three steps processes used to determine if the employer has made conscientious efforts on accommodation of the less fortunate employee: first is to know if the employee can perform his or her existing job. If the employee cannot, then establish if he or she can perform his or her current job if modified, if still he or she cannot, then determine if he or she can perform any other job existing re-bundled or modified job (David Morton Rayside, 2007). Disability is something that hinders an individual in undertaking life important functions. It may mean mental, psychological, physical, or even habitual. Of all the most complicated, as many employers claim, is mental incapacitation especially when the employee has to get into contact with clients, and habitual disabilities like drug dependency and alcoholism. They tend to be tricky even more than other health complications (David Morton Rayside, 2007). The importance of Human Rights Legislation, as it relates to disability is to protect those who are perceive or actually materially impaired through illness. The said disabilities include physical conditions, congenital deformities, asthma, epilepsy, hypertension, speech impediments, alcoholism and drug dependency, obesity and AIDS or AIDS related complex and any other medical, psychological or physical condition. However the duty to accommodate does not imply a guaranteed job for unemployed disabled person. If a person cannot reaso nably perform the essential duties and requirements after employment, there will be no findings for discrimination (David Morton Rayside, 2007). Accommodation is now a deeply entrenched feature in Canadian labor law. It has been enthusiastically practiced since the start of this decade, but it is already spawning or accelerating three outstanding trends in the arbitration system that are changing the very face of labor adjudication in

Divine perfection of a woman Essay Example for Free

Divine perfection of a woman Essay The play Richard III shows power, greed and ambition and how doing these things can effect other people and change how you act and think. In the world today someone who is like Richard in the way that he is greedy and power hungry is Saddam Hussein. The whole play shows how Richard is ambitious, greedy and power hungry. At the start of the play he is ambitious because he has set himself a task to become king. This shows that he is greedy because he is not happy with what position he is at that moment and wants more power. The way in which he does this is by killing anyone who could prevent him from becoming king. I think Shakespeare may have wanted to show that having ambition, power and a little greed is ok but if you lose your head and want more and more power making you become more greedy it could result in not just other people getting hurt but you getting hurt in the end as well. Like in the end of the play Richard ends up dying as a result of his extreme amount of power and greed. I think he wanted the audience to admire him for his cleverness in his schemes and the way he has organised everything. In some points the audience do admire him for his cleverness but straight after he has brought the audience to his side he does something extremely viscous and evil that the audience off liking him. People who are like Richard always end up getting paid back for all their wrong doings, well in some cases any way. Like Adolf Hitler who ended up dying because of all the bad things he had done i.e. WWII. So what Shakespeare is saying is, all bad you do to others you will get back to you. The opening speech that Richard says is to the crowd is directly at them and makes you think hes a nice person because he makes a few funny comments which makes the crowd laugh and grow to like him. This also makes the audience watching the film like Richard too because he seems like a nice person, but when he walks into the toilets away from the crowd he talks at the audience saying that hes ugly, which makes the audience feel sorry for Richard. Straight after he says this he tells you about a plan hes made. First of all you admire him for being ambitious but long after when you find out what his plan will involve, i.e. killing many people who could prevent him from becoming king, you start to really dislike him and wonder how on earth you liked him in the first place. He says, I am determined to prove a villain and hate the idle pleasures of the day, meaning that basically Richard is going to become evil and never have pleasure. This little extract of something that Richard says shows him to be very evil in the fact that he wants to become hated. Another thing Richard says is Plots have I laid, inductions dangerous which means that Richard is plotting some dangerous schemes, and is another reason why people watching the film would turn their nose up at Richard. The audiences overall impression of Richard is that he is a very ambitious man but his ambition will lead to murders being committed so therefore they would think he is a very sly and wicked man. Also the audience would think that Richard is two-faced because first of all he is very nice to Lady Ann and wants her to marry him, but when he has done this he then wants her to be killed. Shakespeare makes you both admire and hate Richard. For example, you would hate Richard in scene one when he talks to you about what evil things he has planned. Where as in Act one Scene two you grow to admire him again because of the way he flatters and wins over Lady Ann with words. He says things like Sweet saint and Divine perfection of a woman meaning he thinks she is perfect. But when Richard has said these flattering comments to Lady Ann, she immediately repels him by saying insults like Diffused infection of a man meaning that she thinks he is a grotty, disgusting and horrible man and Thou unfit for any place but hell which means that Lady Ann thinks that the only place that Richard could possibly live in is hell. Despite all these insults she throws at Richard he still wins her over with his flattering comments. He eventually marries Ann after having killed her husband and father, which she knew he had done. Richard should be admired for his cleverness for the way he won over Lady Ann and set up his schemes, never the less he shouldnt be praised too much because he is still an evil and devious man who has committed murders. Also towards the end of Act One Scene Two he starts to get cocky after winning over Lady Ann and says some evil comments like Was ever woman in this humour won? Ill have her; but I will not keep her long this is saying that he will marry Lady Ann but after a little while he will kill her. This will give the audience a very nasty image of Richard because of his evil antics. Act One Scene Three is where Queen Margaret curses all the people she hates. She says horrible remarks like God, I pray him, that none of you may live your natural age which means that she is saying that all the people she hates she doesnt want to live a long life, and another quotation is Thy friends suspect for traitors while thou livest, and take deep traitors for thy dearest friends which means that she wants all the people she hates to die so they cant hurt her friends. Richard is one of the people Queen Margaret hated so therefore she cursed him. When she curses Richard she says to him No sleep close up that deadly eye of thine, Unless it be whilst a tormenting dream, affrights thee with a hell of ugly devils! This curse actually comes true and like the quotation says Richard has a terrifying dream making him panic and sweat. What happens in the dream is ghosts surround Richard and curse him saying despair and die! over and over again terrifying Richard through the night. But the scene with Richards terrifying dream was not included in the film.

Essay --

The United Arab Emirates (UAE) has a population of nearly 9.2 million people in 2012 (World Bank) and it produces over 48,951,000,000 kWh. (NationMaster.com). It has the world’s sixth largest proven oil reserves and the fifth largest natural gas reserves. However, despite all this, UAE’s methods of generating electricity are going to soon come to an end. There are many ways to generate electricity and they each have their advantages and disadvantages. The major way to generate electricity is probably through fossil fuel plants. However this is not a renewable energy source. There are many other ways that countries use to generate electricity such as Solar energy, wind energy, wave energy, and magnetic energy. In the UAE, natural gas and oil are used to generate electricity. Natural gas is a fossil fuel formed when layers of buried plants and animals are exposed to intense heat and pressure over thousands of years. The energy that the plants and animals originally obtained from the sun is stored in the form of carbon in natural gas. Natural gas is combusted to generate electricity, enabling this stored energy to be transformed into usable power. It is a non-renewable resource and it is running out. The process works by extracting the natural gases from the ground, and then they treat it. The gas is treated at gas plants to remove impurities such as hydrogen sulfide, helium, carbon dioxide, hydrocarbons and moisture. It then gets transported through pipelines from gas plants to power plants. They then use several methods to convert gas to electricity. A more common approach is to burn the gas in a combustion turbine to generate electricity. Oil is another way that the UAE is generating electricity. Oil is found in undergrou... ...ing electricity and do not produce any pollution in the process. It is a reliable energy source. This is because the sun will always rise and set every day, although clouds are unpredictable we can still generate a bit of energy every day. It is also a secure solution and no one will be able to steal it. Economically solar powers help save a lot of money. It also provides job opportunities. It creates two to three times more jobs than using natural gas. There are also some disadvantages of using solar energy. The biggest disadvantage of using solar energy would probably be the fact that the sun doesn’t shine 24 hours a day. When the sun goes down there is no sun and therefore the PV panels will stop producing electricity. This would mean that along with solar panels another energy source must be used to generate electricity when there is no sun light available.

Phish: It’s More Than a Concert Essays -- Essays Papers

Phish: It’s More Than a Concert Phish has inherited the legacy of the Grateful Dead. A responsibility that includes: playing a different set every night, constant jamming and experimenting. Phish is trailed across the country by adoring fans that think their heroes can do no wrong. What makes them so special is that their music winds together. It is full of freedom and happiness. Their lyrics are totally original; they have this weird way of looking at the world and when they express this in their songs it takes you to a whole different level of thinking. Phish is one of the most amazing and unique bands that were ever founded. The music is a cross between bluegrass, folk and rock. The fans would pretty much do anything for this band, as they follow them around the country to different cities. In resemblance to the Grateful Dead (A Jam Band during the 70’s and 80’s), Phish puts on long shows with continuous jams. Each show being completely different from any of the other shows that they have performed drives fans to continue to follow this astonishing band. While each musician attended the University of Vermont, no one would have ever thought that this band would have made it huge. â€Å"Never thought I could make it this far, with a pain in my soul and a whole in my heart, never thought I could never thought I could but when the lights are turning round the wheels are flowing on the ground, the day I burn this whole place down when the circus comes to town† (Trey Anastasio). If one should ever go to a Phish concert you wouldn’t know what to expect because, every show is completely different. The peak of the band’s talent was around 1996 when not many people herd of them. They never made the â€Å"who’s on tour list† ... ...Maine. More than 80,000 fans show up to these events. These events are usually the cause of huge traffic jams and a three day party. People come from all over the world just to experience the sense of community, as well as the intriguing music. Phish presents fascinating, phenomenal music, loyal fans, and spectacular live shows. This band has been together for about 20 years and is still going strong. They have had their ups and downs but they are still together and that’s all that matters to their fans. â€Å"Fame can destroy what you set out to do and all that matters is that we are all still good friends† (Trey Anastasio). The best documentary about Phish is at a concert. I can not explain to you what they are about on paper. I can only give you hints. You need to experience it for yourself, because being at a Phish show is one of the happiest places on earth.

Water Pollution in Our Day Today Life

Water pollution in our day to day life What is water pollution? Water pollution is any chemical, physical or biological change in the quality of water that has a harmful effect on any living thing that drinks or uses or lives (in) it. When humans drink polluted water it often has serious effects on their health. Water pollution can also make water unsuited for the desired use. What are the major water pollutants? There are several classes of water pollutants. The first are disease-causing agents. These are bacteria, viruses, protozoa and parasitic worms that enter sewage systems and untreated waste.A second category of water pollutants is oxygen-demanding wastes; wastes that can be decomposed by oxygen-requiring bacteria. When large populations of decomposing bacteria are converting these wastes it can deplete oxygen levels in the water. This causes other organisms in the water, such as fish, to die. A third class of water pollutants is water-soluble inorganic pollutants, such as aci ds, salts and toxic metals. Large quantities of these compounds will make water unfit to drink and will cause the death of aquatic life.Another class of water pollutants are nutrients; they are water-soluble nitrates and phosphates that cause excessive growth of algae and other water plants, which deplete the water's oxygen supply. This kills fish and, when found in drinking water, can kill young children. Water can also be polluted by a number of organic compounds such as oil, plastics and pesticides, which are harmful to humans and all plants and animals in the water. A very dangerous category is suspended sediment, because it causes depletion in the water's light absorption and the particles spread dangerous compounds such as pesticides through the water.Finally, water-soluble radioactive compounds can cause cancer, birth defects and genetic damage and are thus very dangerous water pollutants. More information on health effects of microrganisms Where does water pollution come fro m? Water pollution is usually caused by human activities. Different human sources add to the pollution of water. There are two sorts of sources, point and nonpoint sources. Point sources discharge pollutants at specific locations through pipelines or sewers into the surface water. Nonpoint sources are sources that cannot be traced to a single site of discharge.Examples of point sources are: factories, sewage treatment plants, underground mines, oil wells, oil tankers and agriculture. Examples of nonpoint sources are: acid deposition from the air, traffic, pollutants that are spread through rivers and pollutants that enter the water through groundwater. Nonpoint pollution is hard to control because the perpetrators cannot be traced. How do we detect water pollution? Water pollution is detected in laboratories, where small samples of water are analysed for different contaminants.Living organisms such as fish can also be used for the detection of water pollution. Changes in their behav iour or growth show us, that the water they live in is polluted. Specific properties of these organisms can give information on the sort of pollution in their environment. Laboratories also use computer models to determine what dangers there can be in certain waters. They import the data they own on the water into the computer, and the computer then determines if the water has any impurities. What is heat pollution, what causes it and what are the dangers?In most manufacturing processes a lot of heat originates that must be released into the environment, because it is waste heat. The cheapest way to do this is to withdraw nearby surface water, pass it through the plant, and return the heated water to the body of surface water. The heat that is released in the water has negative effects on all life in the receiving surface water. This is the kind of pollution that is commonly known as heat pollution or thermal pollution. The warmer water decreases the solubility of oxygen in the wate r and it also causes water organisms to breathe faster.Many water organisms will then die from oxygen shortages, or they become more susceptible to diseases. For more information about this, you can take a look at thermal pollution. What is eutrophication, what causes it and what are the dangers? Eutrophication means natural nutrient enrichment of streams and lakes. The enrichment is often increased by human activities, such as agriculture (manure addition). Over time, lakes then become eutrophic due to an increase in nutrients. Eutrophication is mainly caused by an increase in nitrate and phosphate levels and has a negative influence on water life.This is because, due to the enrichment, water plants such as algae will grow extensively. As a result the water will absorb less light and certain aerobic bacteria will become more active. These bacteria deplete oxygen levels even further, so that only anaerobic bacteria can be active. This makes life in the water impossible for fish and other organisms. What is acid rain and how does it develop? Typical rainwater has a pH of about 5 to 6. This means that it is naturally a neutral, slightly acidic liquid.During precipitation rainwater dissolves gasses such as carbon dioxide and oxygen. The industry now emits great amounts of acidifying gasses, such as sulphuric oxides and carbon monoxide. These gasses also dissolve in rainwater. This causes a change in pH of the precipitation – the pH of rain will fall to a value of or below 4. When a substance has a pH of below 6. 5, it is acid. The lower the pH, the more acid the substance is. That is why rain with a lower pH, due to dissolved industrial emissions, is called acid rain. Why does water sometimes smell like rotten eggs?When water is enriched with nutrients, eventually anaerobic bacteria, which do not need oxygen to practice their functions, will become highly active. These bacteria produce certain gasses during their activities. One of these gases is hydrogen sulphide. This compounds smells like rotten eggs. When water smells like rotten eggs we can conclude that there is hydrogen present, due to a shortage of oxygen in the specific water. What causes white deposit on showers and bathroom walls? Water contains many compounds. A few of these compounds are calcium and carbonate.Carbonate works as a buffer in water and is thus a very important component. When calcium reacts with carbonate a solid substance is formed, that is called lime. This lime is what causes the white deposit on showers and bathroom walls and is commonly known as lime deposit. It can be removed by using a specially suited cleaning agent. More specific information on water pollutants or freshwater pollution is now available or take a look at types of pollution for freshwater For water terminology check out our Water Glossary or go back to water FAQ overview Feel free to contact us if you have any other questionsAbout Lenntech Turnkey plants Pilot plants Containerized pla nts Services Career at Lenntech International Internships Periodic table Calculators Visitors information Our partners Contact us Lenntech BV Rotterdamseweg 402 M 2629 HH Delft The Netherlands tel: +31 15 261 09 00 fax: +31 15 261 62 89 e-mail: [email  protected] com Request a quote ? Home Applications Processes Systems Products Library Languages Copyright  © 1998-2011 Lenntech B. V | Email: [email  protected] com | Tel. +31 15 261 09 00 | Fax. +31-15-2616289 Read more: http://www. lenntech. com/water-pollution-faq. htm#ixzz2Ccrcb1wl

Biology Virus Essay

Biology Virus Essay A virus is a microorganism that cannot reproduce without a host. As a result of this, there has been a lot of controversy on whether or not a virus is a living or non-living organism. The dictionary. com definition for life is, â€Å"the condition that distinguishes organisms from inorganic objects and dead organisms, being manifested by growth through metabolism, reproduction, and the power of adaptation to environment through changes originating internally. Viruses have characteristics of both living and non-living organisms, for example, a living characteristic includes reproduction. A non-living characteristic of a virus is that they cannot have both DNA and RNA. The living characteristics of viruses state that viruses can reproduce, but viruses can only reproduce with the help of a host. As a result of viruses not being able to replicate on their own, viruses are not living organisms. Viruses are small infectious particles that have nucleic acid. They can come in many different shapes and sizes. Although viruses vary in shape the common virus has four main parts, the head, DNA or RNA, tail sheath, and tail fiber. The head of a virus is a protein shell that protects the DNA inside it also known as the genome. In comparison, viruses and living organisms both are made up of smaller units that form up to make something larger. The physical appearance of a virus and living organisms are different and what a virus is made up of is different in comparison to a living organism. Viruses are made up of proteins and nucleic acid. The protein comes together to form an encasing shell for the nucleic acid. The protein shell is called a capsid. The nucleic acid inside a capsid can either be DNA or RNA, but never both. Viruses can be classified depending on the features they have, for example the various shapes of a capsid can determine the type of virus. A capsid can be a simple or complex structure. The most complex capsid is found in bacteria called bacteriophages. A virus can also have a viral envelope which contains protein and lipids. Based on shape and structure viruses can infect bacteria, animals and plants. The way in which viruses can infect theses organisms is different. The viruses that infect bacteria are the most common. The life cycle of viruses that infect bacteria are put into two categories known as the lysogenic and lytic cycles. In the lytic cycle, the virus injects its DNA or RNA into the bacteria and makes the bacteria create all the different components that form an entire virus. These parts come together to create individual viruses and as a result of this mass production of individual viruses, the cell bursts. Viruses that go through the lytic cycle are called virulent phages. Phages that go through the lysogenic cycle are known as temperate phages. In the lysogenic cycle the virus injects its DNA or RNA into the host in the same way as the lytic cycle does except the injected DNA or RNA sits and stays inside the host. As a result the virus doesn’t create more individual viruses and the host’s cell doesn’t burst. Although the nucleic acid sits and stays inside the genome, a reaction could occur and the virus could go from the lysogenic to the lytic cycle. In conclusion, viruses have characteristics of both living and non-living organisms. Like non-living organisms, viruses can’t have both DNA and RNA. They can reproduce like living organisms but that is with the help of a host. Without the help of a host viruses can’t perform the characteristics of a living organism. Due to the lack of living characteristics, this shows that viruses are not living organisms.