Brand Positioning Statement Coursework Example | Topics and Well Written Essays - 750 words

Brand Positioning Statement - Coursework Example This strategy of management evolved the idea of printing one-liners on the packing covers of different products set for sale. These promotional lines silently acknowledge the advantages with indications of different variable of purchase ranging from the name of the product to its value expectations. The statements pose implications of comparative references of the product with similar ones of various other contender companies and influence the buying choices made by the customer. These powerful but composed lines are beneficial to the company as it saves time of the sales executives in a busy environment while they provide for the independent choice of information search preferred by customers to hectic and stereotypic listening process forced on them. Successful descriptive has always enhanced the sales volume of many products; majority of them were one-liner tags that influenced people who eventually utter the taglines as they demand a new brand at retail sales spots. Most importan tly, they assure the committed narratives of the product prior to the final choice made by the customer to buy it or ignore. However, brand positioning statements are the most visible logic that helps promote business and pose and intellectual domination of the product over its substitutes in the market. The following is an example of a set of brand positioning statements Segway HTÂ ® could have used for the product launch. The brand positioning statement of Segway HTÂ ® may be designed in the following way. The Segway HTÂ ® is a two-wheeled electronic human transporter that is governed the inbuilt gyroscopes and tilt sensors. The Segway HT Â ® meets the self-transporting demands of employees and student to regularly travel short distances with provisions for electronically guiding the machine through busy and uneven tracks without loss of time stuck at traffic jams. The Segway HTÂ ® enables the mobility of people with least minimum operative input requirement for commanding th e speed and direction of the motion. The SEgway HTÂ ® is a digitally speed-governed sophisticated machine with an exclusive option of control switches to regulate the speed of the motion relative to the nature of surface and track environment. The Segway HTÂ ® assures easy operation of the machine with suggestion for perfect training for excellent use. The Segway HTÂ ® is powered by dual back up of energy sources for uninterrupted transport unlike other machines of human transport. The Segway HTÂ ® gives the best value for money with the longest endurance among all handy transport machines. (Source: Brandeo). The action plan The operational management is required to frame a target oriented action plan to meet the challenges expected to develop in the market segment with absolute concern for improving the sales of the product. An innovative venture should always be confidentially managed before the finalization of design and market research details. As an essential platform for e asy sales of the product, it is important to conduct surveys on the demand of the product among people of different cities and their ability to buy them. The final plan of the design as well as the price fixation needs to be carried out independently by the concerned departments, but focus should be kept on the universal applicability of the product. In case of a human transporter, the marketing challenges are mainly the social issues like high traffic, damaged pavements and unpredictable conditions of crowding

Diversity and Belief Essay Example | Topics and Well Written Essays - 750 words

Diversity and Belief - Essay Example The first aspect that Chaves discusses is ‘belief,’ the current trend towards belief is very different. Few Americans today are not enthusiast on a particular literal reading of the Bible as they did few years ago. And many are opting a diffusion of spirituality. One of the attribute that Chaves has described as the cause of lowering literal bible reading is due to education. Education system has been formulated with a very rigid curriculum that has cast aside the literal bible reading. The weakening in religion can also be attributed to the gradual drop of religious meetings, elderly congregation and less cohesive. In today’s world there is an increase of televangelists who are characterized with unending scandals and other disgraces that have surrounded a church like catholic. Most of the Churches that are likely to suffer this is the congregations that are more liberal, those that are conservatives seems to be affected in a minimal way. Chaves indicated that lo wer membership in liberal churches is not as a result of liberalizing ideas, on the contrary more people are to the opinion of liberal idea. A puzzling question regarding this thought is, are the liberal ideas religious or humanistic? One of the most amazing trend of American religion since 1970s is that conservatism and religiosity are embedded together. This a false sign that most people perceived since they thought that the force of religion was developing which was not the case. Another phenomenon that was perceived as a reason to dictate that religion was growing was the introduction of Mega churches, which focuses on crowds and programs. Many churches are not concerned about religious belief, they want to be perceived as huge churches with numerous followers.it is due to such reason that suggests that religion was developing gives untrue perception since only more people are

Masculinity In Victorian Gothic Novels

Masculinity In Victorian Gothic Novels In both Robert Louis Stephensons The Strange Case of Dr Jekyll and Mr Hyde and Bram Stokers Dracula, social expectation reveals anxieties surrounding sexuality in the Victorian period. Stephensons novel depicts the masculine as a vehicle of self denial where the protagonist Jekyll will not allow himself to surrender to his immoral alter-ego. In a similar way, the novel Dracula depicts sexual power as a major threat to masculinity, whereby the male characters refuse to permit the females to act upon their sexual desires for fear that such liberation will destabilise patriarchal control. Whilst Victorian ideology is not outwardly challenged in the novels, as liberation sexual or otherwise is entirely condemned, investigating the function of the masculine reveals a somewhat radical gender ideology which contests Victorian expectation. In general, critics comment on oppression of the female within the Victorian period and overlook the same subjugation faced by men. Female disempowerment is commonly recognised whereas male suffering in the context of the same social rigidity is often omitted in criticism of the time. Critic George Landow comments that feminist analysis of the Gothic focuses on the concern of the stereotyping of the female characters according to male fantasy, however Stokers Dracula indulges the male imagination by subverting stereotypical female characters and allowing women power through sexual liberation. Stoker challenges Landows comments that it is only the feminine that suffers under marginalisation of the stereotype by presenting masculine subjugation as a consequence of social restraint. Critic Cyndy Hendershots work on male oppression in Victorian society further challenges ideology of the time. She argues that, generally, the notion of Victorian masculinity is ambiguous as stereotypical an d presumptuous representations of male characters are rarely questioned. Stefan Collini is a critic who acknowledges the ambiguity surrounding representations of Victorian masculinity. He comments that there appears to be a general consensus of gender ideals whereby the accepted single, rigid idea of Victorian masculinity remained unquestioned. Collini suggests that the concept of Victorian masculinity as heterosexual rises from an unquestioned assumption of this as the norm. As a result, it seems that the novels work to challenge accepted roles of gender and sexuality within the Victorian period. Within Victorian society, one of the fundamental concerns was the preservation of reputation. Alongside this concern lay an anxiety over sexuality and how to express and, in turn, suppress, sexual desires. In many ways, the oppressive nature of society, and consequently the inability for men, as well as women, to be sexually expressive, only heightened the fascination of a more sinister side of sexuality. In Jekyll and Hyde, there is a major emphasis on the value systems within Victorian society, especially with regards to their concern to preserve reputation. This is made evident through the characters of both Utterson and Enfield, both respectable members of the society who consider gossip as detrimental to a persons reputation. Dr Jekylls major concern is the way in which others perceive him and he is conscious to maintain an upstanding reputation throughout the novel. On the other hand, the character of Hyde is presented as wholly monstrous and as a means through which Jekyll can become uninhibited, unleashing the emotions society compels him to contain. The characters are anxious to remain within the boundaries of social expectation, yet this overbearing force of constraint is often detrimental as it is clear in both novels that what is constantly suppressed is ultimately released. It is interesting to consider the role of the male characters within the novels as it is evident that the masculine is not, as it would first appear, prioritised. Moreover, the omission of the female, which would generally suggest lack of authority on the part of the feminine, suggests here that the male characters are problematic to themselves, exposing the weakness of the male in a supposedly patriarchal society. In Jekyll and Hyde, the way in which the male characters are so evidently anxious about women and sexuality, despite the fact there are no predominant female characters, suggests that the masculine sphere is continually threatened by female influence. In many ways, the removal of the feminine exposes the flaws of the masculine, and shows that it is not the female who causes the male to suffer but the male alone. The threat of female sexual expression despite the lack of females within the novel demonstrates the psychological turmoil the men face under the constraints of th e Victorian society. Dracula uses female sexuality as a threat to men, again demonstrating the power that women hold over the men and consequently emphasising the weakness of the male. One of the key themes within Stokers novel is the fear surrounding sexual expression. Female sexual expression is seen as a threat which provokes a form of pleasure in the male imagination. The characters are liberated from the pressures of social constraint by means of the imagination, through which they can give a free rein to their sexual desires. Female sexuality is fundamental to the novels exploration of the role of the male within Victorian society as the novel shifts power from one gender to another, as the females exercise their voluptuousness and the men act to maintain social order. Critic Heath comments that feminism makes things unsafe for men, unsettles assumed positions and undoes given identities. Stokers Dracula confirms this theory in its exploration of sexually powerful women who threaten patriarchal authority. On the other hand, the way in which the female characters transform into vampire vixens is not categorically a feminist depiction as the females simply tran sform into embodiments of Dracula, meaning that they shift and take on a masculine form in order to gain power. The three females who become sexualised are clearly representations of gender subversion as they seek to dominate Harker and use him to fulfil their own sexual urges. Yet, in many respects, these females must adopt the role of the male in order to acquire any form of power. Their sharp teeth, which they are determined to bite Harker with, are undoubtedly phallic symbols which epitomise the penetration of the victim. Ultimately, the way females attain power in the novel is through masculinity, therefore gender ideals are not subverted in this sense. Although female characters in the novel are permitted a degree of power and sexual liberation, masculinity remains as the more powerful position. Stoker uses Freudian theory in his novel in order to examine sexuality in the Victorian period without appearing overtly critical of the society in which he lived. The vampire element of the novel distances the reader from the society being described and yet there are noticeable parallels which suggest Stokers deliberate attempt to challenge accepted ideology. Dracula begins with a description of Jonathan Harkers description of how he arrives at the castle. Harker uses the word uncanny in this description which immediately makes reference to Freuds theory, published in 1919, on the uncanny. This theory is referenced throughout the novel, as the vampire who brings about death with his mouth, is representative of the first stage of psychosexual development, according to Freud. It is at this stage where, Freud believes, the person develops the compulsion to destroy that which is living. The characters of Lucy and Mina are presented as being wholly devoted to the men in their lives. This innocence depicts these women as both docile and two-dimensional. Dracula threatens to change these women into devils of the Pit and give them power through sexualisation, and it is only through these transformations that the female characters may acquire a voice within the text. When Lucy Westerna is transformed into a sexual being by Count Dracula, she changes from a weak and passive female character into a vampire vixen who seeks to satisfy her own sexual desires. She is at first submissive at the hands of the male characters but, once she becomes sexualised, she hunts for to use men for her own advantage and fulfil her sexually. Stokers Dracula investigates the possibility of a kind of fluidity within gender roles. When Lucy transforms into a voluptuous vampire, any potential male suitor is warned off at the demand of any form of objection to established sexual identity. The men are perturbed at the prospect of a woman usurping power and subverting accepted roles. Lucys transformation is seen as so insubordinate of social expectation that Van Helsings men are determined to destroy her in an attempt to reinstate social order. The men are fearful that Mina will also be transformed and dedicate themselves to controlling female sexual behaviour in order that the women do not become disparaged socially and therefore incapable of any relationship with them. The mens fears over the womens transformations are entirely selfish as they feel unsafe with any attack on social order. Dracula mocks them saying your girls that you love are mine already; and through them you and others shall yet be mine. He suggests here tha t his transformation of women into sexualised vampire vixens, where their sexual desires are uncontained and liberated, leaves men exposed and will ultimately destroy patriarchy within society. Stoker depicts Victorian horror at the thought of a sexually liberated woman through his description of Harkers own fear at confronting the vampires. His confusion surrounding the kiss of the vampire, where he feels both desire, in his longing for the kiss, and deadly fear at the same time, is representative of the way that Victorian society constrained the mobility of sexual desire for men, as well as for women. His confusion as to whether he was dreaming in his visions of pleasure as the women approached him suggest that he will not allow himself to consider any sexual desire as real and he will not confront his feelings. He decides that if the vampires are more than just visions then they will drink his blood, making themselves stronger and, in turn, weakening him. However, he is still fearful of these vampires if they are simply visions as they still threaten to drain him of semen, as they are providing him with sexual pleasure, as he lies in languorous ecstasy. Harkers weakness as a male is revealed when he is described as being both sickened and excited by the thought of any sexual contact with the female vampires. This demonstrates the oppressive nature of Victorian society in that Harker was forced to subdue his desires as he did not have the power to act upon them. The way in which Stoker depicts Harkers fear in losing valuable fluid, whether blood or semen, in either situation, presents an image of the collapsing patriarchal structure of Victorian society. Stoker may be warning men of this social change, but it seems more likely that he is encouraging social ideology to be reconsidered. The function of the vampire in the novel can be considered as a representation of sexual oppression. The male characters in Dracula all fight to contain female sexuality as they panic for their own wellbeing. In Christopher Crafts essay on gender and inversion in the novel, he argues that Dracula uses gender stereotypes in order to encourage exploration into sexuality and in order that social expectation can be re-imagined. He comments that the novels depiction of transformation, whether from victim to vampire or from vampire to the victim, permits an investigation into sexuality and gender. Often, the way in which the novel challenges oppressive Victorian society is overlooked in favour of its apparent denunciation of gender inversion. Dracula seems to imply a failing on the part of women who seek to subvert conventional social roles and yet in many ways the females are not permitted any form of power as they adopt masculine qualities when they are transformed into vampires. It can be said that gender roles are not definitively reversed in the novel, as the females must become male as they become vampires. In becoming male, the female vampires lose any maternal sense as they prey on innocent children and they become penetrators in their desire to suck blood from their victims. The novel, therefore, has no real female representation, suggesting that Stoker was not setting men and women up against each other but commenting on society as a whole. Dr Jekyll and Mr Hyde is a novel which confronts anxieties of the Victorian period. The narrative presents the idea of one body which contains two opposing personas. Dr Jekyll, who is well-educated and an upright member of society is contained within the single body alongside the wholly immoral Mr Hyde. Dr Jekylls underlying desire to liberate himself from the oppressive society in which he lives is outplayed through his alter-ego Mr Hyde, who enjoys the freedom of acting upon his desires and human urges. This representation seems to emulate Victorian societys deep-rooted fascination with emancipation from social imprisonment. Many critics suggest that masculinity is often presented as an adaptable and indefinite sphere within the novel, a factor which has permitted a degree of reimagining the concept of the male in literature. Critic Cohen argues that from as early as the 1880s, fictional depictions of English masculinity often narrativise the difficulties of the male embodiment as a splitting within the male subject precisely in order to assert new modes of self-representation. He suggests here that the male figure was less frequently written as a stable representation and was more commonly represented as a character with more than one persona. The image of Victorian London presented by Stephenson is a society almost entirely lacking in females. The only woman who is present in the narrative is the maid who witnesses the murder of Sir Danvers Carew. Her status instantly suggests that the woman is lower class and she is presented as an almost insignificant member of society. She describes the body of Sir Danvers Carew as beautiful. This is the only instance novel in the novel where there is any form of interaction between the genders and, even this interaction is presented as non-sexual. The consequences of such a repressive society are clearly detrimental to the people who inhabit it, as Dr Jekyll proves through Hyde, and this oppression is demonstrated through the lack of open sexual desire within the novel. Furthermore, the absence of women within the novel suggests that the male identity crisis was a social creation rather than due to female influence. The men in the novel are at peril with their sexual identity and plac e in society because of the imposing nature of society itself. Whilst Stephenson presents the idea that Victorian society regarded displays of sexuality as indecent, Hydes actions within the novel are undoubted of a sexual nature. When Hyde is first introduced to the novel, there is a description of him trampling a young girl underfoot, and, afterwards, he pays for her family to keep quiet about the incident. This incident could insinuate that Hyde was involved in the common Victorian crime of child prostitution. Moreover, the lack of sexual desire towards females on the part of the male characters may imply that these men were concealing homosexual tendencies. The close relationship shared between Utterson and Enfield may also imply that these two men take part in some kind of sexual behaviour that would have been condemned at the time. Freudian theory labels the character of Hyde as an illustration of the unconscious mind, known as the id. Jekylls ability to conform to social expectation is controlled by his ego which suppresses his unconscious thoughts. Critic Michael Kane believes that Victorian society found the unconscious mind as detrimental. He comments that repressed desires were projected upon those it considered inferior, not only women but any lower order of society, who became the unconscious of respectable society. His ideas suggest that gender is not the significant factor which causes people to act upon their basic urges; it is the idea of levels of the class which impose social rigidity. By this he means that upper class citizens are more likely to suppress any improper desire because of their position within society. This argument is not supported by the novel, however, as Jekyll is a doctor so he is clearly educated and he is a respectable member of society who falls victim to the social oppression he faces. The novel uses the concept of the double in order to examine the way in which characters of either gender can be identified by more than one state, exploring Stephensons own claims that every human being contains some form of alter-ego. Dr Jekyll is an upstanding citizen who conceals an immoral monster in the form of alter-ego Hyde. Throughout the novel the two are presented as entirely distinct beings and it is only in the novels conclusion that the reader can fully understand the two personas as one character. The use of the double personality of Jekyll and Hyde is a useful concept when considering male gender identity, as the dual nature of the individual is said to destabilise male character itself. The novel challenges the idea that the male character represents unquestionably the embodied attributes of a male and a gender ideology that qualifies masculinity as proper male character. Despite the fact that the novel does appear to confront gender stereotypes referenced in the pre vious statement, the idea of masculinity is difficult to consider in the context of social influence, the idea that society constructs the way that gender identity is formed. Stephenson does not condemn men as individuals but comments on the way that the stringency of Victorian society and its expectations does not account for the duality of human nature. Both Stokers Dracula and Stephensons Jekyll and Hyde share a similar narrative structure, introducing a monstrosity and then exploring this idea before eradicating the monster with the intention that social order is reinstated. The monster in Dracula is the Count himself and the monstrosity of the novel is the liberation of female sexual expression through his transformation of women into vampire vixens. Stephensons novel shows the monster as repressed desires of Jekyll which are unveiled through the vehicle of Hyde. At the end of the novel, Jekyll reveals that he knows Hyde will be no more by the time Utterson reads his final letter. At the end of Stokers novel, Dracula is killed and Little Quinceys birth fulfils Van Helsings prophecy of the children that are to be and restores order among the community. Critic Christopher Craft comments that the monstrous threat in the novels is contained and finally nullified by the narrative requirement that the monster be repudiated and the worl d of normal relations restored. The restoration at the end of both novels suggests that gender ideals cannot be subverted entirely, despite challenging social expectation to a certain degree. Nevertheless, the conclusions of the novels are not positive which suggest that although ideals remain as established this is not necessarily the best outcome and there is an inference that change needs to be made. Gothic novels are commonly recognised as texts which exemplify the subjugation of women yet the oppression faced by the male characters is often disregarded. Both men and women suffered equally under the repressive Victorian society which directed sexual behaviour and regarded open sexual expression as depraved. The function of the male character within the novels is not merely to criticise the patriarchal society of the 19th century but to challenge the way that social ideology was a detrimental factor to both men and women.

Blaise Pascal Essay -- Essays Papers

Blaise Pascal "We arrive at truth, not by reason only, but also by the heart"(1) said Blaise Pascal, one of the greatest minds of the 17th Century. The 17th Century was the time of the scientific revolution. During this period the main idea for everyone, was to question everything not to just listen to what is told. This caused a transformation in thought in both religious and scientific areas. Science allowed the questioning of the teachings of the old church. Scientists battled with ideas in math and physics, while philosophers battled with ideas of God. It was an intellectual revolution concerning the methods for determining humanity's place in the universe. Blaise Pascal was a physicist, a mathematician, and a man of God. He was a Renaissance man of the scientific revolution. On June 19, 1623, Pascal was born in the small town of Clermont-Ferrand, France, to Antoinette and Etienne Pascal. When Pascal was just three his mother passed away. After this, Etienne Pascal moved Blaise and his two sisters to Paris, France. Here his son would be able to learn. Etienne Pascal was very concerned about his son becoming an educated man. This is why he decided to teach his son on his own. He brought a young Blaise to lectures and other gatherings. He decided Blaise would not study math until age 15. When he made this decision he took all the math books out of the family home; however, this did not stop a curious Pascal. At age twelve, he started to work on geometry by himself. Blaise’s father finally started to take him to mathematical gatherings at "Academic Parisienne." At the age of 16, Pascal began to play an active role in "Academic Parisienne," as the principal disciple of Girard Desargues, one of the heads of "Academic Par... ... Pascal was such a brilliant man because he could do both of these. Pascal was one of the only men that wrote about his beliefs in God and was an accredited scientist and mathematician too. He was a true man of the scientific revolution. Endnotes: - Pascal, Blaise. 1910. Pascal's Pensà ©es. Translated by W. F. Trotter. New York: The Modern Library, 1941. - Rose, N. Mathematical Maxims and Minims. Raleigh NC: 1988. - Same as 1. - Gillispie, Charles Coulston. Dictionary of scientific biography. New York: Scribner, [1970-1990]. - Auden, W. H. and Kronenberger, Louis. The Viking Book of Aphorisms. New York: Viking Press, 1966. Work Cited Hazelton, Roger. Blaise Pascal The Genius of Thought. Philadelphia: Westminster Press, 1974. Eliot, Charles W. The Harvard Classics (Pascal). New York: P. F. Collier & Son Corporation, 1938. Blaise Pascal Essay -- Essays Papers Blaise Pascal "We arrive at truth, not by reason only, but also by the heart"(1) said Blaise Pascal, one of the greatest minds of the 17th Century. The 17th Century was the time of the scientific revolution. During this period the main idea for everyone, was to question everything not to just listen to what is told. This caused a transformation in thought in both religious and scientific areas. Science allowed the questioning of the teachings of the old church. Scientists battled with ideas in math and physics, while philosophers battled with ideas of God. It was an intellectual revolution concerning the methods for determining humanity's place in the universe. Blaise Pascal was a physicist, a mathematician, and a man of God. He was a Renaissance man of the scientific revolution. On June 19, 1623, Pascal was born in the small town of Clermont-Ferrand, France, to Antoinette and Etienne Pascal. When Pascal was just three his mother passed away. After this, Etienne Pascal moved Blaise and his two sisters to Paris, France. Here his son would be able to learn. Etienne Pascal was very concerned about his son becoming an educated man. This is why he decided to teach his son on his own. He brought a young Blaise to lectures and other gatherings. He decided Blaise would not study math until age 15. When he made this decision he took all the math books out of the family home; however, this did not stop a curious Pascal. At age twelve, he started to work on geometry by himself. Blaise’s father finally started to take him to mathematical gatherings at "Academic Parisienne." At the age of 16, Pascal began to play an active role in "Academic Parisienne," as the principal disciple of Girard Desargues, one of the heads of "Academic Par... ... Pascal was such a brilliant man because he could do both of these. Pascal was one of the only men that wrote about his beliefs in God and was an accredited scientist and mathematician too. He was a true man of the scientific revolution. Endnotes: - Pascal, Blaise. 1910. Pascal's Pensà ©es. Translated by W. F. Trotter. New York: The Modern Library, 1941. - Rose, N. Mathematical Maxims and Minims. Raleigh NC: 1988. - Same as 1. - Gillispie, Charles Coulston. Dictionary of scientific biography. New York: Scribner, [1970-1990]. - Auden, W. H. and Kronenberger, Louis. The Viking Book of Aphorisms. New York: Viking Press, 1966. Work Cited Hazelton, Roger. Blaise Pascal The Genius of Thought. Philadelphia: Westminster Press, 1974. Eliot, Charles W. The Harvard Classics (Pascal). New York: P. F. Collier & Son Corporation, 1938.

Data Communication Assignment

EENG 33151 – DATA COMMUNICATION AND COMPUTER NETWORKS ASSIGNMENT 1 (CO1, CO2 : PO1,PO3) Note: †¢ Submission Date: On or before but not after 12-10-2012 †¢ Refer â€Å"Data Communications and Networking† 4th edition, Behrouz A. Forouzan †¢ No Plagiarism †¢ Kindly use A4 sheets 1. For n devices in a network, what is the number of cable links required for a mesh, ring, bus, and star topology? 2. Assume five devices are arranged in a mesh topology. How many cables are needed? How many ports are needed for each device? 3. What is the difference between an internet and the Internet? 4.When a party makes a local telephone call to another party, is this a point-to-point or multipoint connection? Explain your answer. 5. You have three computers connected by an Ethernet hub at home. Is this a LAN, a MAN, or a WAN? Explain your answer. 6. In a bus topology and ring topology of 8 devices, what happens if one of the nodes is unplugged? 7. Match the following to o ne or more layers: a. Route determination b. Flow control c. Provides access to the end user d. Defines frames e. Mechanical, electrical and functional interface f. Establish, manages and terminates sessions 8.What are the responsibilities of the network layer in the Internet model? 9. What is the difference between a port address, a logical address and a physical address? 10. Define period. Define frequency. 11. In Europe, the power they use at home has a frequency of 50Hz. What is the period of the sine wave in ms? 12. The frequency of a signal is 140 KHz, calculate the corresponding period. 13. The period of a signal is 12 micro seconds, what is its frequency? 14. The period of a signal is 100 ms, what is its frequency in kilohertz? 15. Find the data bit stream of the following graphs [pic][pic] 16.Draw the graph of Polar RZ scheme for the bit streams, (a) 01001, and (b) 00110011001 17. Draw the graph of NRZ-L and NRZ-I schemes for the following data streams (a) 111100001 and (b) 001100110101 18. Draw the graph of Polar Manchester and Differential Manchester; Bi-phase AMI and Pseudo ternary for the bit streams, (a) 010011001 and (b) 00110011 19. An analog signal carries 2 bits per signal element. If 2000 signal elements are sent per second, find the bit rate. 20. An analog signal has a bit rate of 12000 bps and a baud rate of 3000 baud. How many data elements are carried by each signal element?

Job Description

Planning Creates annual operating plans that support strategic direction set by the board and correlate with annual operating budgets; submits annual plans to the board for approval Collaborates with the board to define and articulate the organization's ision and to develop strategies for achieving that vision Develops and monitors strategies for ensuring the long-term financial viability of the organization Develops future leadership within the organization 2.Management Promotes a culture that reflects the organization's values, encourages good performance, and rewards productivity Hires, manages, and fires the human resources of the organization according to authorized personnel policies and procedures that fully conform to current laws and regulations Oversees the perations of organization and manages its compliance with legal and regulatory requirements Creates and maintains procedures for Implementing plans approved by the board of directors Ensures that staff and board have suf ficient and up-to-date information.Evaluates the organization's and the staffs performance on a regular basis 3. Financial management Oversees staff in developing annual budgets that support operating plans and submits budgets for board approval Prudently manages the organization's resources ithin budget guidelines according to current laws and regulations Ensures that staff practices all appropriate accounting procedures in compliance with Generally Accepted Accounting Principles (GAAP). Provides prompt, thorough, and accurate Information to keep the board appropriately Informed of the organization's financial position 4.HR management Recruitment and contracting of company and project staff, Employee development, and training; Policy development and documentation; Employee relations; Performance management and improvement systems; Employment and compliance to regulatory concerns and reporting; Company-wide committee facilitation Including planning, production, staff and Board of Di rectors, including arranging meetings and agendas, attending and minuting meetings; Manage advertising opportunities in other theatre program, press and at venues.Organize the availability of company members for media/PR events as necessary. Oversee content, production and distribution of all marketing and publicity materials (posters, program, flyers, mail outs, brochures etc) with director, designer and project anager. Manage press development; Co-ordinate the invitation of potential future promoters and supporters of the company. 7.Community Relationships Serves as the primary spokesperson and representative for the organization Assures that the organization and its mission, programs, and services are consistently presented in a strong, positive image to relevant stakeholders Actively advocates for the organization, its beliefs, and its programmatic efforts Acts as a liaison between the organization and the community, building relationships with eer organizations when appropriate 8.Programmatic Effectiveness Oversees design, delivery, and quality of programs and services Stays abreast of current trends related to the organization's products and services and anticipates future trends likely to have an impact on its work Collects and analyzes evaluation information that measures the success of the organization's program efforts; refines or changes programs in response to that information 6.Fund Raising Serves as a primary person in donor relationships and the person to make one-on- ne fund raising solicitations Develops fund raising strategies with the board and supports the board in fund raising activities Oversees staff in the development and implementation of fund raising plans that support strategies adopted by the Development Committee Oversees staff in the timely submission grant applications and progress reports for funders. Job description Planning & Control Reports to Head of Planning & Control Summary of role Ensure Factory System set-ups function correctly and client data is processed accurately and on time. Record and report all problems encountered and ensure their resolution. Monitor clients' schedules, priorities release of work to Production and ensure the work is completed on time.Specific responsibilities Involvement in all aspects of technical support including networks, desktop, UNIX administration, backups, disaster recovery, internal/external interfaces, security and software, Help Desk support. Monitor clients' schedules for all incoming transmissions and ensure all scheduled Jobs are processed correctly. Escalate file processing failures via ‘SMS for investigation and communicate the failure with client and/or Client Services Representative. Monitor Master Server log, report and track all issues.Process and release Sample Request and End to End test files as required. Complete all new and change r equests for client set up in Factory including new Corps, Plan Templates and Custom Plans. Complete all new and change requests for client set up In Factory such as Plan Templates and Custom Plans. Priorities release of work to the shop floor ensuring client data sign off Instructions and any other mailing requirements are met, and ensure that correct DOD Is assigned. Proactive involvement in any special projects on an ad hoc basis as and when required. Attend and comply with all training.Undertake other work time to time as requested by the Team Leader. References The Open University (2012) BIBB/BOX. Managing 1: Organizations and people, Module Activities, Milton Keynes, The Open University. Table 10. 1 Job description By Petersen processing failures via ISMS for investigation and communicate the failure with client client set up in Factory such as Plan Templates and Custom Plans. Priorities release of work to the shop floor ensuring client data sign off instructions and any other mailing requirements are met, and ensure that correct DOD is assigned. Proactive Job description Planning & Control Reports to Head of Planning & Control Summary of role Ensure Factory System set-ups function correctly and client data is processed accurately and on time. Record and report all problems encountered and ensure their resolution. Monitor clients' schedules, priorities release of work to Production and ensure the work is completed on time.Specific responsibilities Involvement in all aspects of technical support including networks, desktop, UNIX administration, backups, disaster recovery, internal/external interfaces, security and software, Help Desk support. Monitor clients' schedules for all incoming transmissions and ensure all scheduled Jobs are processed correctly. Escalate file processing failures via ‘SMS for investigation and communicate the failure with client and/or Client Services Representative. Monitor Master Server log, report and track all issues.Process and release Sample Request and End to End test files as required. Complete all new and change r equests for client set up in Factory including new Corps, Plan Templates and Custom Plans. Complete all new and change requests for client set up In Factory such as Plan Templates and Custom Plans. Priorities release of work to the shop floor ensuring client data sign off Instructions and any other mailing requirements are met, and ensure that correct DOD Is assigned. Proactive involvement in any special projects on an ad hoc basis as and when required. Attend and comply with all training.Undertake other work time to time as requested by the Team Leader. References The Open University (2012) BIBB/BOX. Managing 1: Organizations and people, Module Activities, Milton Keynes, The Open University. Table 10. 1 Job description By Petersen processing failures via ISMS for investigation and communicate the failure with client client set up in Factory such as Plan Templates and Custom Plans. Priorities release of work to the shop floor ensuring client data sign off instructions and any other mailing requirements are met, and ensure that correct DOD is assigned. Proactive

The eNotes Blog Hemingways Last Farewell

Hemingways Last Farewell But after I got them to leave and shut the door and turned off the light it wasnt any good. It was like saying good-by to a statue. After a while I went out and left the hospital and walked back to the hotel in the rain. Ernest Hemingway,  A Farewell to Arms, Chapter 41 So ends Ernest Hemingways 1929 novel  A Farewell to Arms, a famously simple, perfunctory line at the end of an epic tale of war and love. But it almost wasnt to be. It has become the stuff of writing lore that Hemingway admitted to writing 39 variations on the novels ending before deciding on the published version. 39 could-have-been lines that the public never got to seeuntil now, that is.   Hemingways long-time publishing house, Scribner, is releasing a new edition of  A Farewell to Arms,  complete with every possible alternate  ending the novelist imagined (there are actually a total of 47, by his grandsons careful analysis). The edition will also feature the original cover art for the book, at right, as well as the list of Hemingways other options for its title: these include Love in War, World Enough and Time, Every Night and All, Of Wounds and Other Causes, and The Enchantment. The last was crossed out by the author, but who knows how close the work could have been to being called by one of these other names. The New York Times was able to provide a sneak peek to a few of these 47 endings, each of which was numbered and named. They range from the nihilistic No. 1, The Nada Ending: â€Å"That is all there is to the story. Catherine died and you will die and I will die and that is all I can promise you.† ..to the optimistic. No. 7, The Live-Baby Ending: â€Å"There is no end except death and birth is the only beginning.† One was even suggested by Hemingways good friend F. Scott Fitzgerald, and is named after him. In this,  the author concluded that the world breaks everyone, and those it does not break it kills No. 34, The Fitzgerald Ending: â€Å"It kills the very good and very gentle and the very brave impartially. If you are none of these you can be sure it will kill you too but there will be no special hurry.† If you recognize the quote, it did in fact make its way into the published copy of the book, but earlier on, in Chapter 34. So, why the need to uncover these now, after many decades safely tucked away within the John F. Kennedy Presidential Library? Though Hemingway is still a strong seller for his publisher, they admit the need to constantly present his body of work afresh. There has also been a push to place the authors collected works further into the limelight than his formidable persona, which has appeared recently quite dramatized in the films Midnight in Paris and Hemingway and Gellhorn, as well as the bestselling novel The Paris Wife. Finally, the fact that the collection of alternate closing lines exists is a testament to a bygone way of writing, as well as to Hemingways commitment to getting the words right, as he once put it. With so many writers today composing on computers, would it be possible to uncover such a glimpse into the writing process as this? But also, is it fair that we should get to see it? Not according to Sean Hemingway, one of the authors grandsons: I think people who are interested in writing and trying to write themselves will find it interesting to look at a great work and have some insight to how it was done, he says. But he is a writer who has captured the imagination of the American public, and these editions are interesting because they really focus on his work. Ultimately that’s his lasting contribution. Others may disagree. Do you feel that the drafts should go unpublished? Or are you happier knowing how Hemingway arrived at A Farewell to Arms classic ending? Did Hemingway, in your opinion, make the right choice with the ending he selected?

Life, sadness and happiness Research Paper Example

Life, sadness and happiness Research Paper Example Life, sadness and happiness Paper Life, sadness and happiness Paper Essay Topic: Life Of Pi Like there are two sides of a coin, there are two sides of life, sadness and happiness. Happiness cherishes your life whilst sadness brings terrible storms without any calamity. Sometimes when our lives are full of joy we forget that grief is also a major share in life. Keeping a balance of happiness and sadness is important to realise what is right and wrong.  A catastrophic storm also took place in my life and covered it completely for a long period of time. On the 24th of August, 2003, death snatched a very important person from me, my beloved grandfather. He was an immense inspiration in my life and watching him die in front of my own eyes was very painful. My grandfather was a great man who had worked really hard all his prestigious life. He had always lived with his head up high and was loved by everyone. My grandfather had cancer, enemy of life, for the past two years but he did not know that death was crawling on him like a sly fox. Three years ago my grandfather came with the hope that life will win over death, from Pakistan, to get treated for his illness. My grandfather, who was unaware of the fact that he had cancer, was living happily until one day he had terrible pain in his bladder. My dad rushed him to hospital and the doctors declared that it was just a minor infection and sent him home with antibiotics. Later on that month his pain increased rather than decreasing. Going to the toilet was equivalent to hell. My dad then got him treated in a private hospital. After many blood tests and observations, the doctors came to the conclusion that he had cancer in his bladder. Doctors also explained to dad that grandpa was going to live for only a few days. From that day dad made sure that grandpa did not learn about his vicious illness at such an old age. My dad came home that day with a burden on his heart. The only aim in my dads life was to give his dad as much happiness as possible. When I came to discover this fact, the sky and earth became one and I felt as if I was being crushed in between them. A week later the cancer in his bladder cautiously grew up his windpipe and then into his mouth. He described his pain as, heavy burning. He told us that whenever he sat up, the weight of is illness pressed him down until he got breathless, he gave up and lay back down as a living corpse. I still remember that day when my grandfather became so ill that he was unable to eat anything. He had to drink milk with added vitamins. By this time everyone was aware of the fact that he had cancer and my grandfather also knew that death was knocking at his door. After seeing him unable to move, talk or consume I felt like the most helpless person ever. I locked myself in the room that day and cried my heart out. I was really upset. I felt like waking him up, holding his hand and talking to him but unfortunately my wish stayed unheard forever. My dad called the doctor, when my grandfather was in his last stage. The doctor said that he only has a few moments and advised my dad to invite all his siblings to see their father taking his last breath. Shortly a couple of nurses came and injected morphine into his blood to ease his death. After watching my grandfather in his room with everyone else I came downstairs for a bite to eat. I drank a glass of water but my mouth still felt as dry as the desert. My humble feet made way upstairs. I was half way up when I heard screams of pain. I ran up the steps taking 4 at a time. And there I saw my grandfather taking his last breaths, fighting between life and death. He died; he was no longer alive. At that moment I felt like taking all the life out of myself and giving it to grandpa. I slowly walked over to him with my eyes swollen up from crying. I touched his hand very slowly; I could feel the warm blood still running in his veins. His face looked like an innocent child with a light smile on his dry lips. Next morning, morning which brings light into everybodys lives only brought darkness to my grandfathers life. It was his funeral. All of our relatives headed towards Central Mosque and so did I, where I saw my grandfather for the last time in his coffin which has become his home now. I remember trying to console my parents but it did not work. Watching my dad cry, who was such a strong man, shattered me into a million pieces. Even today when I remember my grandfathers death, my eyes moist and tears dribble down my face. My grandpa was a very important person in my life, even more than my parents and maybe thats why I got a sudden shock from his death. In a way I was relieved that he died because it cured him from his moment to moment pain. I learnt a lot of memorable words from my grandpa, Life is too short, live it before it ends. At that time I never took his words seriously but now these same words have become so important and meaningful to me. That incident has become the most heartbreaking moment of my life, and I am sure that I will never experience anything as drastic as that.

Definition and Examples of Content (Lexical) Words

Definition and Examples of Content (Lexical) Words In English grammar and semantics, a  content word is a  word that conveys information in a text or speech act. Also known as a lexical word, lexical morpheme,  substantive category, or contentive.  Contrast with  function word  or grammatical word. In his book The Secret Life of Pronouns (2011), social psychologist James W. Pennebaker expands this definition: Content words are words that have a culturally shared meaning in labeling an object or action. . . . Content words are absolutely necessary to convey an idea to someone else. Content words- which include nouns, lexical verbs, adjectives, and adverbs- belong to open classes of words: that is, new members are readily added. The denotation of a content word, say  Kortmann and Loebner, is the category, or set, of all its potential referents (Understanding Semantics, 2014). Examples and Observations All morphemes can be divided into the categories lexical [content] and grammatical [function]. A lexical morpheme has a meaning that can be understood fully in and of itself- {boy}, for example, as well as {run}, {green}, {quick}, {paper}, {large}, {throw}, and {now}. Nouns, verbs, adjectives, and adverbs are typical kinds of lexical morphemes. Grammatical morphemes, on the other hand- such as {of}, {and}, {the}, {ness}, {to}, {pre}, {a}, {but}, {in}, and {ly}- can be understood completely only when they occur with other words in a sentence. (Thomas E. Murray, The Structure of English. Allyn and Bacon, 1995)Reverend Howard Thomas  was the presiding elder over a district in  Arkansas, which included  Stamps. (Maya Angelou,  I Know Why the Caged Bird Sings. Random House, 1969)Most people with low self-esteem have earned it. (George Carlin, Napalm Silly Putty. Hyperion, 2001)The  odor  of fish hung thick in the air. (Jack Driscoll,  Wanting Only to Be Heard. University of Massachusetts Press, 1995) Liberal and conservative have lost their meaning in America. I represent the distracted center. (Jon Stewart) Function Words vs. Content Words Grammatical words [function words] tend to be short: they are normally of one syllable and many are represented in spelling by less than three graphemes (I, he, do, on, or). Content words are longer and, with the exception of ox and American Englishs ax, are spelt with a minimum of three graphemes. This criterion of length can also be extended to the production of the two sets of words in connected speech. Here grammatical words are often unstressed or generally de-emphasised in pronunciation. (Paul Simpson, Language Through Literature. Routledge, 1997) All languages make some distinction between content words and function words.  Content words carry descriptive meaning; nouns, verbs, adjectives, and adverbs are types of content word. Function words are typically little words, and they signal relations between parts of sentences, or something about the pragmatic import of a sentence, e.g. whether it is a question. Lewis Carrolls Jabberwocky poem illustrates the distinction well: Twas brillig, and the slithy tovesDid gyre and gimble in the wabe:All mimsy were the borogoves,And the mome raths outgrabe. In this poem all the made-up words are content words; all the others are function words. In English, function words include determiners, such as the, a, my, your, pronouns (e.g. I, me, you, she, them), various auxiliary verbs (e.g. have, is, can, will do), coordinating conjunctions (and, or, but), and subordinating conjunctions (e.g. if, when, as, because). Prepositions are a borderline case. They have some semantic content, but are a small closed class, allowing hardly any historical innovation. Some English prepositions serve a mainly grammatical function, like of (what is the meaning of of?) and others have clear descriptive  (and relational) content, like under.  New content words in a language can  be readily invented; new nouns, in particular, are continually being coined, and new verbs (e.g. Google, gazump) and adjectives (e.g. naff, grungy) also not infrequently come into use. The small set of function words in a language, by contrast, is much more fixed and relatively steady over centuries. (James R. Hurford, The  Origins of Language: A Slim Guide.  Oxford University Press, 2014) Content Words in Speech Typically, the prominent syllable in a tone unit will be a content word (e.g. a noun or verb) rather than a function word (e.g. a preposition or article), since content words carry more meaning than function words. Function words will only be stressed if prominence on them is contextually warranted. (Charles F. Meyer, Introducing English Linguistics. Cambridge University  Press, 2010)

Friendly Bank Coursework Example | Topics and Well Written Essays - 1500 words

Friendly Bank - Coursework Example The case scenario involving the Friendly Bank gives a situation whereby the task force at the bank is organised in teams. The teams are made up of 14 team members with a team leader and an assistant team leader. The bank came into existence as an online arm of Parkers PLC that had undergone poor management that almost made it go bankrupt. Packers PLC had a kind of non-aggressive kind of organisational culture among its workers. This was expressed, by the way, its workers worked with a lot of reluctance without bothering anything. Several problems set in when most of the former workers at Parkers PLC are again employed at Friendly Bank as the Long Stays to head the customer advisor teams. The problems that set in include the different groups working at the bank not working well together, teams also not working as teams, members of teams have no common motivational factors and wants, a lot of tension between individuals and groups leading to absenteeism, poor performance and informal p ower games, and lack of proper leadership decision making. This paper it, therefore, aimed at providing an analysis of the case and at the same time addressing the problems faced by the bank by providing possible solutions that the management can apply. Friendly Bank is adversely affected by organisation design/culture problem. To begin with, most of the employees who were previous employees at the branches of Parkers PLC that were closed down, were eventually transferred to Friendly Bank. Such employees, like Sheila, display a particular culture that has been implanted in them since they were workers at Parkers PLC. This is quite evident as the so-called "Long stays" are depicted to have a particular character of not being bothered about meeting the weekly Sales Against Targets. Sheila, for instance, says, she feels the team members are doing enough given that they are always

Moore's Law Annotated Bibliography Example | Topics and Well Written Essays - 500 words

Moore's Law - Annotated Bibliography Example The author here is Crothers Brooke. The article has been written for the general public to explain them how the increasing cost of materials has forced the information technology (IT) industry to adapt alternative plans to manufacture similar products. The article directed its focus mainly on the statement given by the higher authorities of Defense Advanced Research Projects Agency which seemed to be biased. The information sited in the article is current. Yes the site link is appropriate and is also considered to be one of the media site around the globe. The writers here are Ron and Drost. The audience of the book can be considered to be the general public. The book cannot be considered as a biased piece of work, as the information on the book is considered to be a current comparison of the law with the modern fundamental physics. The publisher of the book is considered to be a well-known publisher around the globe. 4. Myslewski, Rik. Intel reveals 14nm PC, declares Moores Law alive and well. The A Register. Web. 22 Sep. 2013. . The author of the article is Rik Myslewski. The targeted primary audience of the article are IT industry and the secondary audiences are considered to be the civilians. The article mainly states argument given by Intel defending that the law has not been out dated. The company i.e. Intel has also introduce 14-nanometer PC which proves that the law is yet acceptable. The information provided in the article is current and also provides a comparison of the law with different statement given by various critics. The site link is valid. The author here is Sami Franssila. The book has been written for academia and people relating to the IT sectors. The book is not biased, as it mainly focus on explaining the different aspects that Moore has considered while constructing the law. The book

Starbucks Case Study Example | Topics and Well Written Essays - 3000 words

Starbucks - Case Study Example However, today the luxury industry has seen some dramatic changes in changed market conditions. Increase in global competition has changed supply and demand patterns for the market according to Roux and Floch (1996) whereas Arghavan and Zaichkowsky( 2000) feel that it is counterfeited luxury goods that has changed the market conditions. Some feel that economic hardships have also changed market conditions. The changed market conditions have raised new challenges for marketing strategists of luxury brands. One thing is clear that no brand can claim that it is recession-proof even though one can find many instances where luxury brands have done well during recession. For instance, Rolls-Royce reported an increase in its in sales in 2008 and Hermes, a designer bag maker is also faring well. Luxury brands have to discover new and different ways in order to stay ahead. Luxury goods marketing men have to become more creative and cost conscious in order to make a success of the brands. Patrick Chalhoub, Joint CEO, Chalhoub Group, feels that in times of recession companies must have the ability to adapt and compete in the changed circumstances. According to him, "Times of recession bring an emphasis on change for both product and brand. Some of them may not have the capacity to adapt, compete or reinvest, while others will thrive in these circumstances†. Starbucks can be taken as an example on how things can go wrong in changed conditions. Starbucks Corporation that was founded in 1971 has its headquarters in Seattle, Washington. This chain of coffee houses saw tremendous growth and success and by 2007 had more than 15000 stores around the world. But suddenly in 2007 its performance slipped and its share prices began to decline. A combination of reasons, recession and overexpansion among them, was the cause of this decline. It had to bring back Howard Schultz to revive the company. This paper discusses the challenges of

Strategic Planning and Implementation Case Study

Strategic Planning and Implementation - Case Study Example Today, Gillette is a business unit of global corporation, Proctor and Gambler. Its global expansion was rapid during the first twenty years of Gillette's existence, with offices and plants opened in a multitude of countries around the world. It was, however, the American entry into World War I that propelled even more rapid growth when the army issued Gillette razors and blades to all military personnel. Gillette was essentially a single-line product company until the 1940s when the Toni Company was acquired. A third major line of products was added to the company in the early 1950s by the acquisition of the Papermate company. Its major product was a marketleading refillable ballpoint pen. Today, Gillette is the largest dollar value marketer of writing instruments in the world with Papermate, Waterman, Parker and Flair among its brand franchises (Gillette Company Home Page 2008) In Gillette, corporate strategy, regardless of how elegantly conceived, how comprehensive its scope, or how forward-looking its thrust, does not provide competitive advantage until it is communicated, understood, valued and acted upon by a variety of key corporate stakeholders. The main criteria for stakeholder participation are that employees must understand, accept and internalize corporate strategy if the strategic blueprint is to be transformed into positive strategic results (Clegg et al 2005). Suppliers, strategic partners and customers must have a basic understanding and appreciation of the firm's strategic direction if these stakeholder relationships are to flourish and be productive. Only when the corporate strategy message is communicated in a clear, concise, timely and persuasive manner to key corporate stakeholders does the firm have an opportunity to achieve competitive advantage (Amit & Schoemaker 1993). Key Criteria for Strategy Reviewing In Gillette, the key criteria for strategy reviewing are current performance and new strategic objectives, competition in the industry and market changes (demographic and income) (Clegg et al 2005). Gillette management understands that the strategy must embody a strategic view of the future and a plan designed to achieve strategic goals and objectives. The strategic vision must be responsive to emerging opportunities and sensitive to the internal strengths of the company. As the multinational

Landmarks in Humanities Second Edition by Gloria K. Fiero Research Paper

Landmarks in Humanities Second Edition by Gloria K. Fiero - Research Paper Example The irony of the beginning and the end of the end of Rome is that the mythic man who built Rome, Romulus, is the name of the last emperor to rule over the state of Rome. Romulus Augustulus was the last emperor of Rome, his reign ending in 476 BCE when Flavius Odoacer deposed the emperor in the name of Constantinople (Illustrated History of the Roman Empire). This change is most often considered the moment that marks the end of ancient Rome and the beginning of the Western European Middle Ages (Schafer and Cohen 100). According to what is known about the last emperor, he was merely a teenager when his empire fell and was allowed to live, retired to the region of Naples with an annual pension. The power of the emperor had run so low that the new regime felt no threat from his living presence (Sass, Weigand, Pearson and Hattikudur 111). The problem with considering the ‘Fall of Rome’ is in determining exactly when Rome fell. If Rome is considered a concept more than a place, the fall of the empire might not have actually occurred until 1453 when Constantinople fell. If it is considered a place, the fall happened much earlier than the date of the deposing of Romulus Augustulus and occurred when Emperor Constantine moved the capital from Rome to Bosporus in Constantinople in 330CE. The only reason that it is considered to have fallen in 476BCE is because the line of emperors was broken during that event, but the fall of the Roman Empire can be considered through a vast number of events which makes the Empire either a short event in history or a very long event in history, spanning more than a millennia (Cunningham and Reich 108). Rome was a phenomenon that has yet to be truly rivaled since its time. At its height, the empire of Rome was spread from Hadrian’s Wall in Briton to the River Euphrates in Western Asia. According to Heather â€Å"interconnected fortress systems, strategic road networks, and professional, highly trained armies both

Fundamental concepts of managerial economics Assignment - 1

Fundamental concepts of managerial economics - Assignment Example Changes in the price (P) of the good or service will result only in movement along the demand curve, whereas changes in any of the other demand determinants in the demand function (PS, PC, Y, A, AC, N, CP, PE, and so on) shift the demand curve. When two goods are substitutes, such as Chevy-volt and Toyota Prius, an increase in the price of Chevy-volt, results in an increase in the quantity demanded of Toyota Prius, holding other factors constant, such as the price of Toyota Prius, other prices, income, and so on, or vice versa. The price of a gallon of regular octane gasoline skyrocketed from $3.00 per gallon to $4.10. The previous summer, when gas prices had hovered around $3 per gallon, Americans had cut back only slightly on non-essential driving. In the summer of 2008, with regular gasoline at $4.10 per gallon, not only summer driving vacations but urban commuting itself changed in extraordinary ways. Overall, customer demand by the typical two-person urban household shrank from 16 gallons per week to 11.5 gallons. Faced with $4.10 per gallon gasoline, as ExxonMobil and Shell sought to recover their extraordinary input costs for crude, American consumers decided to vacate their SUVs, join carpools, and ride the buses and trains to work. Urban mass transit system ridership shot up 20 percent in a matter of months. Other Americans purchased fuel efficient hybrids like the Toyota Prius. Several determinants of demand and supply were identified as possible explanations for the spike in gasoline’s equilibrium market price. This therefore lead to the decreases in the demand for SUVs to a point that the Enterprise Rental Car Co. charged various models of rental cars such as SUVs at $37 on one-day return while the subcompacts were charged at $41 on one-day return. This therefore led to the decline in the equilibrium price of SUVs. Cash flows of Investment A have a larger coefficient of variation (0.80) than do cash flows of Investment B (0.50); therefore,

Landmarks in Humanities Second Edition by Gloria K. Fiero Research Paper

Landmarks in Humanities Second Edition by Gloria K. Fiero - Research Paper Example The irony of the beginning and the end of the end of Rome is that the mythic man who built Rome, Romulus, is the name of the last emperor to rule over the state of Rome. Romulus Augustulus was the last emperor of Rome, his reign ending in 476 BCE when Flavius Odoacer deposed the emperor in the name of Constantinople (Illustrated History of the Roman Empire). This change is most often considered the moment that marks the end of ancient Rome and the beginning of the Western European Middle Ages (Schafer and Cohen 100). According to what is known about the last emperor, he was merely a teenager when his empire fell and was allowed to live, retired to the region of Naples with an annual pension. The power of the emperor had run so low that the new regime felt no threat from his living presence (Sass, Weigand, Pearson and Hattikudur 111). The problem with considering the ‘Fall of Rome’ is in determining exactly when Rome fell. If Rome is considered a concept more than a place, the fall of the empire might not have actually occurred until 1453 when Constantinople fell. If it is considered a place, the fall happened much earlier than the date of the deposing of Romulus Augustulus and occurred when Emperor Constantine moved the capital from Rome to Bosporus in Constantinople in 330CE. The only reason that it is considered to have fallen in 476BCE is because the line of emperors was broken during that event, but the fall of the Roman Empire can be considered through a vast number of events which makes the Empire either a short event in history or a very long event in history, spanning more than a millennia (Cunningham and Reich 108). Rome was a phenomenon that has yet to be truly rivaled since its time. At its height, the empire of Rome was spread from Hadrian’s Wall in Briton to the River Euphrates in Western Asia. According to Heather â€Å"interconnected fortress systems, strategic road networks, and professional, highly trained armies both

Discrimination and Young People Essay Example for Free

Discrimination and Young People Essay 1.1 Explain what is meant by * diversity * equality * inclusion Diversity means difference. It means understanding that each individual is unique, and recognizing our individual differences such as race, ethnicity, gender, sexual orientation, age, physical abilities and religious beliefs. Equality means treating everyone the same regardless of their individual differences. It is the discovery of these differences in a safe, positive, and nurturing environment. Everyone has an equal right to be treated with dignity and respect. No one should be denied opportunities because of their race or ethnicity, their disability, their gender or sexual orientation, their age or religion. Inclusion means including people in a way that makes them feel appreciated and respected. Treating individuals fairly and respecting the differences between them makes it easier to include them. 1.2 Describe the potential effects of discrimination Discrimination is treating someone or a group of people in a different way to everyone else based on their individual differences. It involves the behavior towards a child or children such as excluding or restricting children from activities that other children are participating in. Discrimination happens when we fail to respect individuals and their choices. Discrimination affects everybody in different ways: Low self-esteem, depression, withdrawn behaviour, shyness, tearful, fearful etc. When someone is discriminated against, it can exclude them from friends, family, neighbours, and society in general. A child’s self-worth is reduced, as they feel isolated, and alone. Children’s Young People’s Workforce (2010 page 21) states that â€Å"When children experience prejudiced attitudes, there is a danger of damage to their self-esteem and self-confidence†. Discrimination can limit a child’s right to achieve their potential and objectives, their right to learn, their right to succeed. The most common forms of discrimination are racial remarks, being insulted and being the butt of hurtful jokes. Discrimination, racism and harassment may have significant mental and physical health consequences such as frustration, stress, anxiety and depression. Effects of discrimination physically and emotionally: Depression Anger Low self-esteem Isolation Loss of confidence Low self-worth Feeling stressed or unable to cope Fear of rejection The long-term effects could include: Loss of motivation Missed opportunities that may affect the childs experiences and development Limited access to services Mental illness caused by stress 1.3 Explain how inclusive practice promotes equality and supports diversity Inclusive practice is about the attitudes, approaches and approaches taken to ensure that people are not excluded or isolated. It means supporting diversity by accepting and welcoming children’s differences, and promoting equality by ensuring equal opportunities for all children. Child care workers show inclusive practice by working in ways that recognise, respect, value and make the most of all aspects of diversity. Children’s Young People’s Workforce (2010 page 25) states that another type of inclusive practice is to â€Å"offer children equality of opportunity to  participate, develop and learn. This does not mean treating them all the same; we have to acknowledge their diversity and treat children as individuals, with equal concern†. Having a sound awareness of and responding sensitively to an individual’s diverse needs supports them in developing a sense of belonging, well-being and confidence in their identity and capabilities and it helps them to achieve their potential to take their place in society. In addition, inclusive practice involves having an understanding of the impact that discrimination, inequality and social exclusion can have on an individual’s physical and mental health. Having such an understanding ensures appropriate, personalised care and support, thereby enabling an individual to develop self-respect and maintain a valued role in society. Children’s Young People’s Workforce (2010 page 20) states that â€Å"When children spend time in settings which promote diversity, equality of opportunity and inclusion, they are able to make progress in all areas of development†. Inclusive practice involves reflecting on and challenging one’s own prejudices, behaviours and work practices. It also involves challenging those of colleagues and other service providers with a view to changing ways of thinking and working and changing services to build on good practice and to better support diversity and promote equality. Bibliography Authors:Penny Tassoni, Kate Beith, Kath Bulman, Sue Griffin Year of publication:2010 Title:Children’s Young People’s Workforce – Early Learning Childcare Publisher:Heinemann

Textile dyeing and textile wastewater treatment

Textile dyeing and textile wastewater treatment Advances In Textile Dyeing And Textile Wastewater Treatment Using Advanced Oxidation And Membrane Filtration Technologies: A Review Introduction The textile industry is a diverse sector in terms of production of raw materials, operating processes, product development, and equipment. The industry is well-characterized for consuming large amounts of water, energy, and discharging high volumes of waste in to public sewage treatment plants (STP). The main sources of pollution in the textile sector are derived from operating processes such as dyeing and finishing mills. These processes use considerable levels of water (ex. 70-150L for 1kg of cotton), chemicals (salts, alkali, wetting agents, etc.), and dyestuffs (e.g. reactive dyes) to achieve the desired properties of the textile product of which contribute to the pollution load in the industry. Major pollutants of environmental concern in textile wastewater include toxic organic compounds, color, suspended solids, and biochemical/chemical oxygen demand (BOD5/COD). The disposal of textile effluent in the municipal STP is an environmental concern because these industrial pollutant s may pass through unchanged and enter the receiving rivers or streams potentially harming the welfare of aquatic life. The adverse effect of these pollutants on the aquatic environment include depletion levels in dissolved oxygen, reduction in photosynthetic activity, and increase susceptibility for organisms to acids and bases. Effluent treatment technologies proposed in literature include activated sludge, coagulation, ozone, electrochemical oxidation and membrane filtration technologies . Conventional treatment methods such as coagulation and activated sludge have been used to manage textile wastewater to governmental standards for discharging in sewage treatment plants however these processes are ineffective for removing color from wastewater. Advanced oxidation processes such as electrochemical oxidation and ozone are alternative applications to effectively remove color and toxic organic compounds however some disadvantages include operating costs and possible production of chlorinated organic by-products in the receiving waters. Membrane filtration processes such as nanofiltration and reverse osmosis are promising technologies for an ecological friendly approach to treating textile effluent for reuse since it consumes less water and energy. The aim of this review paper is to describe two novel methods for reducing pollution load in textile dyeing of cellulose fabrics. The first method is the use of cationic reagents as a pretreatment for cotton fibers to enhance dye fixation and the second method uses supercritical carbon dioxide (CO2) to replace water as a dye transfer medium. An overview on textile dyes, dye fixation, and dyeing process will be discussed. Furthermore, effluent treatment technologies such as coagulation, advanced oxidation processes (electrochemical oxidation and ozone) and membrane filtration technologies (nanofiltration and reverse osmosis) in which the mechanism and evaluated as promising applications for treating effluent water to be reuse in textile wet processing operations such as dyeing. Textile Dyes And Dye Fixation Dyes are described as colored substances with complex chemical structures and high molecular weights. By definition the color arises from the attachment of the auxochrome to the chromophore (light absorbing group) of the dyes that alters both the wavelength and intensity of absorption. Dyes manufactured for clothes makers are designed to have good light stability and chemical resistance to degradation, however due to the high solubility of dyes in water biological treatments are ineffective in removing color from the effluent. Wash fastness is an important factor to weigh into consideration when determining the durability of the product. It is dependent on the covalent bond strength between the fiber and dye against alkaline and acid hydrolysis, and the efficient use of water to remove unreacted dye from the substrate. The degree by which dyes are fixed on to fiber and get discharged into the treatment bath after wash-off is referred to as dye fixation. The influence of dye loss is a ttributed to several factors such as the type of dye, the depth of shade, application method, and liquid ratio (water/energy consumption). Cotton and other celullosic fabrics are colored with reactive dyes because these dyes have good light stability and good wash fastness characteristics but poor dye-fixation yields (60-70%). Reactive dyes attach on the fiber via a covalent bond formation between the reactive group of the dye and the nucleophilic group in the fiber. The dye-fiber reaction is facilitated by large amounts of salt and electrolytes that reduce the charge repulsion forces between the negatively charge dye molecules and the negatively charge hydroxyl groups in the fiber as a result of the ionization of cellulose hydroxyl groups in water. However, due to the competitive reaction between the hydroxyl anions (OH-) in the alkaline bath and negatively charge dye molecules for the ionized hydroxyl groups in the cellulose fibers which are the nucleophiles for the dye-fiber reaction; approximately 40% of hydrolyzed (un-fixed) dye remains in the treatment bath at the end of dyeing process. An extensive demand for was h-off is required to achieve the desired wash fastness characteristics on the product. Textile Dyeing Before the fabric enters the dyeing process it must be properly treated to remove all natural impurities and chemical residues applied during operating processes such as fiber production, and fabric weaving and knitting. The pretreatment process includes desizing, bleaching, and mercerization of which contribute nearly fifty percent of waste pollution generated by the industry. Conventional dyeing processes use large amounts of water nearly 100L of water per 1kg of textile. Water is a â€Å"poor† medium for transferring dyes on to the fabric from an environmental point of view because of the increasing shortage of water available. Salts and alkali are added when dyeing cotton with reactive dyes in order facilitate the affinity for the dye molecules on the fiber. The treatment bath at the end of dyeing process is heavily polluted with toxic organic compounds, electrolytes, and residual of dyes of which can be expensive to recover and purify. Effluent disposal is the primary opt ion since treated water to be reuse in the industry needs to have no color, no suspended solids, low COD, and low conductivity levels. Therefore, the development of environmentally safe production methods is challenging since both the wastewater quality and quantity depend to a considerable degree on the technique used for a certain substrate (fiber). Influence Of Cationization For Dyeing Cellulose Fibers With Reactive Dyes The influence of cationization for dyeing cotton with reactive dyes enables an environmentally friendly approach to increase dye utilization, lower water and energy consumption, and reduce effluent disposal/treatment. Cationization of cotton is generally performed by introducing amino groups in the cellulose fiber through the reaction of the hydroxyl groups in the cellulose fiber and the reactive group (e.g. epoxy and 4-vinylpyridine) of the quarternary cationic agents. The pretreatment of cellulose fibers with reactive cationic agents will increase dye adsorption as a result of the columbic attraction between anionic dye molecules and nucleophiles on the substrate. The dye-fiber reaction can occur under neutral or mild acidic conditions without the use of electrolytes and therefore severe wash-off procedures can be eliminated since hydrolysis of dyes generally occurs in alkaline conditions. EPTMAC, 2,3-epoxypropyltrimethylammonium chloride, is an example of a quarternary cationic agent used in research studies to investigate the use of cationization for improving dye adsorption of cellulose with reactive dyes. Under alkaline conditions EPTMAC will react with alcohols to form ethers and thus produce a cationized fiber when it reacts with the methyl hydroxyl groups at the C6 position of the cellulose polymer. A combination of electrostatic interactions such as ion-ion or ion-dipole forces, intramolecular and intermolecular hydrogen bonds, and van der waal forces may influence the adsorption of the cationic group of the pretreatment agent to the anionic carboxylic groups in the cellulose fiber. The reaction between the reactive group of dye molecules and the amino-functional nucleophiles of the cationized fiber has been proposed by Blackburn and Burkinshaw (2003) to occur via a nucleophilic substitution mechanism or a Michael addition to a double bond. Factors that appear to influence the cationic process of dyeing fabrics include cationic reagent concentration, dye concentration, and temperature. Kanik and Hauser (2004) demonstrated that increasing the cationic reagent concentration in the pretreatment solution caused a decrease in dye penetration of the substrate suggesting that an increase in surface coloration occurred as result of the strong ionic attraction of dye molecules for the cationic charges on the fiber. Montazer et al. (2007) reported that the color strength (K/S) values for dyeing with treated cotton with cationic process were often 2-4 times better than that of dyeing via conventional methods (K/S values range from 1-4). The effect of temperature influenced the percent of total dye utilization by increasing the absorption of cationic reagent for the substrate. Subramanian et al. (2006) demonstrated that better color strength values (K/S value 12.987) and maximum total dye utilization (T value 95.1%) were obtained when 20% concentration of cationic reagent (CIBAFIX WFF), 10g/L of soda ash, and an optimal temperature of 70 ºC was used as the cationization parameters. A substantial reduction in industrial pollutants such as BOD5, COD, and total dissolved solids were determined using cationic reagent CIBAFIX WFF compared to dyeing untreated fabric by conventional methods. Blackburn and Burkinshaw (2003) reported the pretreatment of fabric via cationization reduced the level of water consumption to nearly half of that applied during the normal dyeing process ( Textile Dyeing In SuperCritical Carbon Dioxide Supercritical fluid technology is a promising application for the development of a water-free dyeing process in that it can be environmental friendly, energy saving, increase productivity, and eliminate effluent treatment and disposal. The beneficial properties of dyeing textiles in supercritical carbon dioxide (SC-CO2) are that it is expensive, non-toxic, non-flammable, CO2 can be recycled, and control in dye application rate. SC-CO2 exhibits densities and solvating powers similar to liquid solvents adding to its advantages in textile processing, since its low viscosity and rapid diffusion properties allow the dye to diffuse faster into the textile fibers. SC-CO2 has been successfully employed as a solvent system in the dyeing and finishing processes for synthetic fibers such as polyesters. In polyester dyeing, SC-CO2 penetrates inside the fibers causing them to swell thereby making the fibers accessible to the dye molecules. As the pressure is lowered the dye molecules are trapped inside the shrinking polyester fibers and no waste is generated since the dye molecules cannot be hydrolyzed and no additional energy is required to dry the fabric after dyeing [18]. Since non-polar dyes are primarily used in supercritical CO2 dyeing further development is required to enhance the dyeing of natural fibers with ionic dyes such as acid dyes or reactive dyes because the affinity of natural textiles with dyes occurs by chemical (covalent bonds) interactions or fixed by physical (van der waals) forces.20-21 Kraan et al. (2003) reported four factors that influence the role of supercritical CO2 dyeing for natural fibers â€Å"(1) dye solubility at operating pressure and temperature, (2) fiber accessibility to allow diffusion of dye molecules on substrate pores, (3) dye-fiber substantivity, and (4) the reactivity of dye with the textile.† Sawada et al. (2004) investigated the action of co-surfactant on the phase boundaries of the pentaethylene glycol n-octyl ether C8H5 reverse micelle using various kinds of alcohols and discussed he solubility of ionic dyes in the C8H5 reverse micellar system when co-surfactant density of CO2 and temperature are varied. The research strategy was to dissolve the ionic dye in a SC-CO2/reverse micellar system that involves dispersing a small quantity of water in SC-CO2 and co-surfactant suitable dye bath that contained conventional ionic dyes in SC-CO2. Alcohol, particularly 1-pentanol seems is a suitable co-surfactant to accelerate the solubilization of water in SC-CO2; it assists the formation of stable reverse micelles. Pentaethylene glycol n-octyl ether C8H5 as a surfactant is soluble in liquid and SC-CO2; the complex C8H5/CO2 system has a potential to enhance the solubility of water by an addition of co-surfactant in comparison with a typical reverse micellar system in organic media . Beltrame et al (1998) investigated the effect of polyethylene glycol as a pre-treatment of cotton fabrics in SC-CO2 and the results showed that the dye uptake was strongly increased if cotton was pretreated with PEG. PEG is able to form hydrogen bonds with cellulose chains this prevents the complete deswelling of the fibers during the SC-CO2 treatment thus maintaining to cotton the more accessible to dyeing. At the end of the treatment however when the CO2 is evacuated the dyes migrate out of the polymer in the undissolved state through the polymer pores and washing fastness is consequently very low. In order to avoid these undesired effects benzamide which is soluble in SC-CO2 is a good solvent for disperse dyes as a synergistic agent; it is able to form hydrogen bonds with cotton and PEG thus favoring dye entrapment through the partial occlusion of cellulose pores. The results yield good dye uptake, light and wet-washing fastness are good increasing the durability of the product. F ernandez Cid et al (2005) prior to dyeing the cotton it was presoaked in a solution of methanol to swell the fibers. The methanol replaces the water in the cotton and will attach the cotton hydrogen bonds. The hydrophobic part of the methanol will make diffusion of hydrophobic non-polar reactive dyes into the cotton possible. Application In Wastewater Treatments The treatment of textile wastewater for reuse in textile operations represents an ecological and economical challenge since textile effluents vary in composition due to the different chemicals or physical processes used on fabrics and machinery. Textile pollutants of environmental concern include residual dyes, color, BOD, COD, heavy metals, pH, high suspended solids, and toxic organic compounds.2 Typical effluents characterized in the textile industry and their measurements are presented in Table 1 [23]. Table 1. Effluent Characteristics of Textile Wastewater [derived from Kdasi et al., 2004] Parameters Values pH 7.0-9.0 Biochemical Oxygen Demand (mg/L) 80-6,000 Chemical Oxygen Demand (mg/L) 150-12,000 Total suspended solids (mg/L) 15-8,000 Total dissolved solids (mg/L) 2,900-3,100 Chloride (mg/L) 70-80 Total Kjeldahl Nitrogen (mg/L) 70-80 Color (Pt-Co) 50-2500 The removal of COD and BOD are important from an environmental point view since high levels can deplete the level of dissolved oxygen in receiving rivers causing an increased amount of non-biodegradable organic matter.23 Some advantages and disadvantages for the various chemical-physical treatment processes applied for cleaning wastewater is listed in table 3 (edited from babu et al). References 1. Babu, B. R.; Parande, A.K.; Raghu, S.; Kumar, T.P. Textile Technology, Cotton Textile Processing: Waste Generation and Effluent Treatment. J. Cotton Sci. 11, 141-153 (2007). 2. Savin, I.; Butnaru, R. Wastewater Characteristics in Textile Finishing Mills. Environmental Engineering and Management Journal 7, 859-864 (2008). 3. Ren, X. Development of environmental performance indicators for textile process and product. Journal of Cleaner Production 8, 473-481 (2000). 4. Hendrickx, I.; Boardman, G.D. Pollution Prevention Studies in the Textile Wet Processing Industry [Literature Review]. VPI SU Dept. of Civil Engineering, Blacksburg, VA.. Tech. Rep. NCDENR (Ref/01/00469) (May 1995). 5. Ergas, S. J.; Therriault, B. M.; Reckhow, D. A. Evaluation of Water Reuse Technologies for the Textile Industry. Journal of Environmental Engineering 132, 315-323 (2006). 6. Laing, I. G. The Impact of Effluent regulations on the dyeing industry. Rev. Prog. Coloration 21, 56-71 (1991). 7. Alinsafi, A.; da Motta, M.; Le Bonte, S.; Pons, M.N.; Benhammou, A. Effect of variability on the treatment of textile dyeing wastewater by activated sludge. Dyes and Pigments 69, 31-39 (2006). 8. Lin, S.H. and Chen, M.L.. Treatment of Textile Wastewater by Chemical Methods for Reuse. Wat. Res. 31, 868-876 (1997). 9. Canizares, P.; Martinez, F.; Jimenez, C.; Lobato, J.; Rodrigo, M.A. Coagulation and Electrocoagulation of Wastes Polluted with Dyes. Environ. Sci. Technol. 40, 6418-6424 (2006). 10. ONeill, C.; Hawkes, F. R.; Hawkes, D. L.; Lourenco, N. D.; Pinheiro, H. M.; Delee, W. Colour in textile effluents-sources, measurement, discharge consents and simulation: a review. J. Chem. Technol. Biotechnol. 74, 1009-1018 (1999). 11. Kulkarni, S. V.; Blackwell, C. D.; Blackard, A. L..; Stackhouse, C. W.; Alexander, M.W.; Textile Dyes and Dyeing Equipment: Classification, Properties, and Environmental Aspects. US EPA , Research Triangle Park, NC, 1985. 12. Blackburn, R.S.; Burkinshaw, S.M. Treatment of Cellulose with Cationic, Nucleophilic Polymers to Enable Reactive Dyeing at Neutral pH withouth electrolyte addition. J. Applied Polymer Science 89, 1026-1031 (2003). 13. Fernandez Cid, M.V.; van Spronsen, J.; van der Kraan, M.; Veugelers, W.J.T.; Woerlee, G.F.; Witkamp, G.J. Excellent dye fixation on cotton dyed in supercritical carbon dioxide using flurotriazine reactive dyes. Green Chem. 7, 609-616 (2005). 14. Frazer, L. A Cleaner Way to Color Cotton. Env. Health Perspectives , 110, 252-254 (2002). 15. Montazer, M.; Malek, R.M.A.; Rahimi, A. Salt Free Reactive Dyeing of Cationized Cotton. Fibers and Polymers 8, 608-612 (2007). 16. Kanik, M. and Hauser, P.J. Printing Cationized Cotton with Direct Dyes. Textile Research Journal 74, 43-50 (2004). 17. Subramanian, M.; Kannan, S.; Gobalakrishnan, M.; Kumaravel, S.; Nithyanadan, R.; Rajashankar, K.J.; Vadicherala, T. Influence of Cationization of Cotton on Reactive Dyeing. JTATM 5, 1-16 (2006). 18. Montero, G.A.; Smith, C.B.; Hendrix, W.A.; Butcher, D.L. Supercritical Fluid Technology in Textile Processing: An Overview. Ind. Eng. Chem. Res., 39, 4806-4812 (2000). 19. Ozcan, A.S.; Clifford, A.A.; Bartle, K.D. Solubility of Disperse Dyes in Supercritical Carbon Dioxide. J. Chem. Eng. Data 42, 590-592 (1997). 20. kraan et al 21. Sawada, K.; Takagi, T.; Ueda, M. Solubilization of ionic dyes in supercritical carbon dioxide a basic study for dyeing fiber in non-aqueous media. Dyes and Pigments 60, 129-135 (2004). 22. Beltrame, P.L.; Castelli, A.; Selli, E.; Mossa, A.; Testa, G.; Bonfatti, A.M.; Seves, A. Dyeing of Cotton in Supercritical Carbon Dioxide. Dyes and Pigments, 39, 335-340 (1998). 23. Al-Kdasi, A.; Idris, A.; Saed, K.; Guan, C.T. Treatment of Textile Wastewater by Advanced Oxidation Processes-A Review. Global Nest: the Int.J. 6, 222-230 (2004).

Choroidal Neovascularization :: Biology Essays Research Papers

Choroidal Neovascularization If you had to give up one of your five senses, which would it be? Would you give up your ability to see? A startling number of people lose their eyesight due to an eye disorder known as choroidal neovascularization. And soon I may be one of them. Although there is no known cure for this unfortunate disease, studies have been conducted to find the appropriate surgical treatment. The outer portion of the 2.5 cm human eye is composed of three primary layers of tissue. The outermost layer is called the sclera, which acts as a protective coating. Within this layer the transparent cornea is present in the front area of the eyeball. Under the sclera is the choroid where the majority of blood vessels and the iris are located. The light-sensitive layer is known as the retina. As mentioned, the choroid contains most of the eyeball's blood vessels. It is also the layer prone to bacterial and secondary infections. Choroidal neovascularization is a process in which new blood vessels grow in the choroid, through the Bruch membrane and invade the subretinal space. Because there is currently no medical treatment for this disease this abnormal growth can easily lead to the impairment of sight or complete loss of vision. Three main diseases that cause choroidal neovascularization are age-related macular degeneration, myopia and ocular trauma. The Wisconsin Beaver Dam Study showed that 1.2% of 43-86 year old adults with age-related macular degeneration developed choroidal neovascularization. The study also proved that choroidal neovascularization was caused by myopia in 5-10% of myopes. Ocular trauma, another cause of choroidal neovascularization, is for reasons unknown found more often in males than females. More than 50 eye diseases have been linked to the formation of choroidal neovascularization. Even though most of these causes are idiopathic, among the known causes are related to degeneration, infections, choroidal tumors and or trauma. Among soft contact lens wearers choroidal neovascularization can be caused by the lack of oxygen to the eyeball. Unlike age-related macular degeneration, age is irrelevant to this cause. Although no medical treatments have proven to be a cure for choroidal neovascularization, particular antiangiogenic substances such as thalidomide, angiostatic steroid, and metalloproteinase inhibitors are currently being tested. Through surgical testing, partial removal of choroidal neovascularization proved to be useless. Therefore the focus has been placed on photodynamic therapy, a procedure approved by the Food and Drug Administration.

Conjoined Twins :: essays research papers

Out of approximately every 400,000 births, four are conjoined. Of the four, three will die within twenty-four hours. Of the remaining set of twins, 70% of them will either die (one or both) or they will live out their lives handicapped. The overall survival rate for conjoined twins is between 5% and 25%. Considerably more males conjoin in the womb than females; however females are three times as likely as males to be born alive. Approximately 70-75% of conjoined twins are female. Conjoined twins who survive are truly miracle babies. They are a medical phenomenon, and even more so in society, for the survival rate of conjoined twins is so low that meeting conjoined twins that survived is a rare occasion. Conjoined twins, defined by Stedman’s Medical Dictionary, is: â€Å"Identical twins born with their bodies at some point and having varying degrees of residual duplication, a result of the incomplete division of the ovum from which twins developed.† Simply put, conjoined twins are twins whose bodies are joined together at birth. There are many different names for conjoined twins, however the two most common are conjoined and Siamese. The word Siamese most likely originated from the twins Chang and Eng who were from modern day Thailand. Both words however refer to twins who are a form of monozygotic twins. Monozygotic twins are formed when a single fertilized egg splits into two embryos. Or perhaps in an easier to understand way, conjoined twins are formed when the zygote (a cell that is the result of fertilization) of identical twins fails to completely separate. This failure of the zygote to completely separate is not affected by heredity, infertility treatments, maternal age, or any other factors. The cause of the birth of conjoined twins is really unknown, and at this point completely random. There are several conjoined twins now present in the world, most of which have been featured in some kind of news article or TV show. Some of the most famous conjoined twins are Chang and Eng Bunker, and Mary and Eliza Chulkhurst. Chang and Eng were Chinese Americans born modern day Thailand in 1811 and are most likely responsible for the term Siamese Twins being coined. Mary and Eliza are the earliest known set of conjoined twins. They were born in 1100 in Biddenden, Kent, England. There are many different types of conjoined twins, depending upon where the twins are joined together.