Managing Decision Making Essay Example | Topics and Well Written Essays - 500 words

Managing Decision Making - Essay Example They are also long term thinkers and like recognition for their achievement; in fact, they are considered thinkers instead of doers. Guardian decision makers apply a model of fairness, which a high consideration of preserving health and creating a balance in terms of organizational values. Guardian decision makers undertake a sound decision making process by making choices that are fact based and carefully planned (Sherman, 2013, 1). These decision makers focus on facilitating continuity through moderate caution; in fact, they gather relatively broad information (Oliver and Roos, 2005, 889). Therefore, guardian decision makers are analytical individuals since they use large volume of data, and exercises great care during the analysis; besides, they enjoy problem solving and they are motivated by challenges. Motivators are decision makers who are charismatic; in fact, they have ability to convince people regarding the need for an action. Moreover, they have ability to align different components of a company. They are considered good storytellers willing to risk their conviction about the story, despite countervailing facts (Sherman, 2013, 1). Motivators do not rely on information; in fact, they hold a strong conviction that self-interest prevails over corporate interest (Wilcox and Bourne, 2003, 806). They can be considered behavioural individuals, who are very persuasive, supportive, good communicators, with reliance on limited data for analysis. They are also motivated by peer acceptance and they are emotional. Flexible decision makers are versatile compared to other types of decision makers; in fact, they are open minded in adaptation to varying situations. They are willing to seek involvement of different opinions and ideas from other people. Flexible decision makers rely on ad hoc approaches instead of formal processes, and they are fairly cautious (Sherman, 2013, 1). However, they have a limitation of being very open-minded, which can

Imporatance of 3 Period Name Lesson Essay Example for Free

Imporatance of 3 Period Name Lesson Essay For the purpose of giving a clear perception of an idea in association with language, Montessori advised that the â€Å"three period lesson† of Seguin should be used. The periods are: 1st period: â€Å"The association of the sensory perception with the name†. Example: Give the child a large and a small cylinder and say â€Å"this is large† and â€Å"this is small. † 2nd period: â€Å"Recognition of the object corresponding to the name. † Example: Ask the child to indicate which is the large cylinder and which is the small cylinder. rd period: â€Å"the remembering of the name corresponding to the object. † Example: show the child the large cylinder and say â€Å"what is this? † then show him the small cylinder and say â€Å"what is this? † The 3 period name lesson is very useful because it is very simple and very clear for the child. Furthermore the teacher does not ask the child to actually name the object until she is sure he can recognize it. The importance of the three period lesson cant be underestimated. This tool can be used anywhere. In the classroom we use it to introduce letter sounds, number values and symbols, continent names, plants and animals, but it is not limited just to the classroom. It can also be used in the playground, in the kitchen, at music lessons, even at the super market. It can even be used to introduce object names in a second language. There is no limit to how this lesson can be used because, under the right circumstances, there is no limit to the amount of information a child between the ages of 3 and 6 is capable of absorbing. The real beauty of the three period lesson is that it allows Montessori teachers to meet each child exactly where they are. In other words, the technique allows the children as much time as they need to learn each new concept some children will absorb a concept quickly and only need the lesson once or twice while other children may want to be given the lesson many times until they are confident enough to move on.

The Gay Marriage Controversy Essay -- Same-Sex Marriage Essays

Marriage has been an important part of life since the Biblical times. It usually consists of the union of a man and a woman, but for gays and lesbians, it is the union of two men and two women. On June 26, 2015, the US Supreme Court ruled that the US Constitution guarantees the right for same-sex couples to marry. Many conservatives are completely against gay marriage and they have stated that they will fight to have the Supreme Court ruling overturned. Legalizing gay marriage is a very difficult issue for much of society to accept. Some of the controversies with gay marriage are religious beliefs, equal rights, legal ramifications, a fight for acceptance and the freedom to practice their lifestyles openly while society can contend that gay marriage is a bad idea for the sake of procreation, because the consequences far outweigh the benefits. We can concede that the emotional stigma associated with gay marriage makes it more difficult for children to fit societal standards. First of all, there are many reasons that are given to refute why gay and lesbian marriages should be a part of our society. Marriage in this country is defined as the union between a man and a woman, but over the past couple of years there has been much controversy over the true meaning of marriage. For the vast majority of professing Christians today believe that the Bible teaches that monogamy is the only acceptable form of marriage and that gay marriage violates God's commandments concerning marriage. According to Cardinal Joseph Ratzinger, in July 2003, the Vatican stated, â€Å"There is absolutely no grounds for considering homosexual unions to be in any way similar or even remotely analogous to God’s plan for marriage and family†¦ Marriage is ... ... Works Cited Keenan , Jill. "Legalize Polygamy!." Slate. 15 April 2013: n. page. Web. http://www.slate.com/articles/double_x/doublex/2013/04/legalize_polygamy_marriage_equality_for_all.html Mello, Michael . Legalizing Gay Marriage. Philadelphia, PA: Temple Univ. Press, 2004. Print. ProCon.org. "Gay Marriage.† ProCon.org.Web 3 Dec. 2013. http://gaymarriage.procon.org/view.resource.php?resourceID=004857 Robson, Ruthann. Gay Men Lesbians And The Law. New York: Chelsea House Publishers, 1997. Print. Sean, C. R. . Same-Sex Marriage in The United States: Focus on the facts. Lanham, Maryland: Lexington Books, 2004. Print. Stanton, Glenn T., and Dr. Bill Maier . Marriage On Trial. Downers Grove, IL.: InterVarsity Press, 2004. Print. Wardle, L. D. . Marriage and same-sex unions, a debate. Westport, Connecticut: Praeger Publishers, 2003. Print.

Savage Inequalities by Jonathan Kozol :: Education Poverty Public Schools

Savage Inequalities, written by Jonathan Kozol, shows his two-year investigation into the neighborhoods and schools of the privileged and disadvantaged. Kozol shows disparities in educational expenditures between suburban and urban schools. He also shows how this matter affects children that have few or no books at all and are located in bad neighborhoods. You can draw conclusions about the urban schools in comparison to the suburban ones and it would be completely correct. The differences between a quality education and different races are analyzed. Kozol even goes as far as suggesting that suburban schools have better use for their money because the children's futures are more secure in a suburban setting. He thinks that each child should receive as much as they need in order to be equal with everyone else. If children in Detroit have greater needs than a student in Ann Arbor, then the students in Detroit should receive a greater amount of money. My perception was changed completely after reading this book, I never knew that so many schools were situated in the ghettos and were so badly overcrowded or only had two toilets working for about 1000 students, and no toilet paper. What really upsets me is the fact that within the exact same city limits, there are schools situated in the suburbs which average 20 per classroom and have enough supplies and computers for every child to receive one as their own. Of course the majority of these suburban schools are dominantly white and the urban schools hold the minorities. The dropout rates that are listed in the book are ridiculous. Most of the children drop out in secondary school and never receive a proper education because of the lack of supplies or lack of teachers' interests. The majority of the kids are black or Hispanic in the poor schools and the suburban schools hold the upper-class white children and the occasional Asian or Japanese children who are in the gifted classe s. The small population of blacks and Hispanics that go to the schools are placed into the "special" classrooms and their "mental retardations" can be blamed for their placements. The majority of these students are not mental and they belonged in a regular classroom among whites and Asians. Kozol argues that the system is separate and unequal and he builds upon his hypothesis until it becomes credible.

Nurses’ Work Hours

I have been a staff nurse in the emergency room for fourteen years. I have worked a variety of 8, 10, 12, and even 16 hour shifts. I currently am working 8 and 12-hour shifts on nights. Previously, I also worked some 12-hour day shifts. I personally have been struggling with working the 12-hour shifts. My commute to work is 1 hour one way and I have fallen asleep several times driving home from work. The last four hours of my shift I experience great fatigue and even have had trouble staying awake. I have come close to having medication errors and feel that my quality of care is less during the last four hours. When working 12-hour shifts I average around 5-6 hours of sleep before returning to do another 12-hour shift. During an interview with another colleague also working 12-hour shifts she states she also experiences feeling very tired and less alert. She actually admits to having a medication error that she feels was associated with the long hours and fatigue. With these concerns I ask, â€Å"Are nurses work hours a concern for nurses and patient safety†? Introduction As demands for flexible work hours and a balance between home and work life have increased for nurses, twelve hour shifts are more common. The nursing shortage has also contributed to nurses’ working longer hours to cover shifts. Nurses must remain alert to provide safe care and prevent errors in medications and procedures. Nurse work hours are a concern to me regarding patient safety. I am also concerned with the health risk of nurses working long hours so I decided to do a search on how long hours affect nurses and their patients. I searched evidenced based research articles available from a variety of trustworthy healthcare sites like CINHAL, ANA, and Nursing Journals. I organized this literature review in three categories. These categories are: Positive and negative effects of long hours, effects of long hours on patient safety, and if there are any health effects on the nurse working 12-hour shifts. Literature Review Positive and Negative Effects of Long Hours There are both advantages and disadvantages of working 12 hour shifts (Ede, Davis, & Sirois, Circadian, 2007). One advantage is working less days during the week, which is desirable of most nurses. It is also easier to have all the shifts covered because you do not have to hire as many nurses (Circadian, 2007). In a qualitative study by Richardson, Turnock, Harris, Finley, & Carson (2007) the purpose was to examine the impact and implications of 12-hour shifts on critical care staff. Two groups and questionnaires with critical care staff from three critical care units were reviewed. Positive effects were found with planning and prioritizing care, improved relationships with parents/relatives, good quality time off work and ease of travelling to work. Less favorable effects were with caring for patients in isolation and the impact on staff motivation and tiredness. Acceptable patterns of work were suggested like no more than 2-3 consecutive shifts should be worked and rest periods between shifts. The survey concluded that most of the nurses that responded wanted to continue with 12-hour shifts. Systems and practices need to be developed to improve on the negative effects of working 12-hour shifts. In one of my interviews the nurse agreed that she enjoys 12-hour shifts because she has more days off during the week and feels she has more time with her family, although I personally disagree. She also states it is easier to provide day care for her children. Disadvantages of longer work hours according to Circadian (2007) included that it is harder to cover absences, limited family and social time during working days, more pay lost when a day is missed and increased percentage of night shifts. Longer work hours have also been associated with increased tiredness, less sleeping hours, driver fatigue returning home, and increased risk of errors or near errors ( Richardson et al. , 2007); (Scott, 2006); (Scott, 2010); (Chen, 2011). I have no time with my family on the days I work 12 hours. Even though I have more days off I feel I am spending at least one day recovering after working a long shift. I personally would rather have interaction with my family daily especially since the kids are in school. A colleague I interviewed also agreed that when working 12 hour shifts she had limited time with her family. Effects on Long Hours on Patient Safety As a result of nursing shortage hospital staff nurses are working longer hours with few breaks (Chen et al. 2011). In one quantitative study by Scott, Rogers, Hwang, & Zhang (2006) they randomly selected 1148 critical care nurses and sent them a demographical questionnaire to fill and return related to medical errors and the hours they worked. The objective of this article was to describe the work patterns of critical care nurses, determine if there was a relationship between the occurrence of errors and the hours worked by the nurses, and explore whether these work ho urs had adverse effects on nurses’ vigilance. The 502 respondents consistently worked longer than scheduled and for extended periods. Longer work duration increased the risk errors and near risk errors and decreased nurses’ vigilance. The findings supported the Institute of Medicine recommendations to minimize the use of 12 hour shifts and to limit nurses’ work hours to no more than 12 consecutive hours during a 24 hour period (IOM, 2006). Although the findings note that 12 hour shifts can have negative effects, most participants wanted to continue working them. Nurses are responsible for the safety of their patients. Nurses must remain alert to provide safe care, recognize discrete changes in patient conditions, and intercept potentially dangerous errors in medication and procedural orders (Keller, 2009). Nurses’ work hours are a concern given the expectation of their sustained vigilance to maintain the well-being of patients. The 12 hour shifts worked by many nurses are associated with reduced sleep times, difficulties staying awake, frequent overtime, and significant risk for error (Rogers, Hwang, Scott, Aiken & Dings, 2004)( Scott, Rogers, Hwang, & Zhang, 2006). Even though 12 hour shifts may be preferred by many nurses, studies indicate that extended shifts worked by hospital staff nurses are associated with higher risk of errors. Long hours coupled with insufficient sleep and fatigue is even risker (Scott et al, 2010). More than two-thirds of 895 hospital staff nurses reported â€Å"struggling to stay awake on duty† at least once during a 28-day data gathering period (Rogers, Hwang, Scott, & Dinges, 2003). Nurses reported fighting sleep about once every five shifts (2,258 out of 11,218 shifts). Drowsiness was not confined to the night shift; more than half of these episodes occurred between 6 A. M. and midnight. Nurses who reported shorter sleep durations were more likely to struggle to stay awake, fall asleep, and make errors while on duty (Scott et al, 2010). Effects on Nurses Working Long Hours Studies examing the health and safety consequences of nurses themselves are beginning to shed some doubt about the wisdom of continuing to use the twelve hour work schedule. According to one study, adverse health and safety outcomes of extended work hours include increased rates of musculoskeletal disorders, needlestick injuries, motor vehicle accidents, and inadequate sleep (Greiger-Brown, & Trinkoff, 2010). All of these can be attributed to reduced vigilant attention, fatigue, and decreased neuromuscular fine motor control associated with sleep deficiency. In an interview with one colleague she states that her body, â€Å"hurts all over†, when working a twelve our shift. I have fallen asleep driving before which could of resulted in injury of myself or someone else. Lengthening of the shift duration from 8 to 12 hours significantly restricts the opportunity for sleep and produces sleep deficiency (Smith et al. , 1998). Working without adequate sleep between shifts can lead to negative chronic health effects including Cardiovascular Disease, metabolic syndrome, diabetes, obesity, decreased immune function, and increased cancer risk (IOM, 2006). In a quantitative study by Chen, Davis, Pan, & Daraiseh (2011) a total 145 nurses wore monitors for one 12-hour day shift to record heart rate (HR) and work pace(WP), which were used to calculate energy expenditure(EE). The purpose of this study was to determine whether hospital nurses are experiencing physiological strain at work by examining their physiological and behavioral response patterns over 12-hour shifts. The EE and HR data presented in the study revealed a moderate physiological strain experienced by 12-hour shift nurses, regardless of their slowed paces during the last four hours. The study noted that although work pace slowed during the last 4 hours, the nurses’ heart rate continued to be elevated, which could lead to cardiovascular disorder. Moreover, inadequate work break and sleep, family care-giving responsibility and aging presented challenges that may have prohibited nurses from full recovery and potentially exacerbated the negative impacts of the 12 –hour shifts. Overall their results relates to EE and HR suggest that nursing workload of 12-hour has a negative physiological impact on nurses. Policy Implications Although there are negative effects noted in working twelve hour shifts, I don’t think it is going anywhere due to the fact that nurses love them, and the increase in nursing shortage. Keeping this in mind instead of focusing on stopping twelve hour shifts, there needs to be interventions on how to improve the 12 hour shifts to provide safer patient care and prevent health problems in nurses. The preliminary policy implications I have discovered is the possibility of limiting how many twelve hour shifts a nurse should work in a row, mandating breaks while working twelve hour shifts, allowing the night shift to nap, regulate how many hours a nurse can volunteer to work, and allow the older nurses to have an option between 8 and 12-hour shifts. In my institution there is no limit on how many hours a nurse can voluntarily sign up for as long as it is approved if it puts the nurse in overtime. Our breaks are not mandated, if we get one great, and if not we can get paid for not getting a break. Most of the time, our breaks are interrupted. Regarding naps, physicians on the night shift are allowed to sleep if there are no patients, but there is no policy stating the nurse can sleep. Some nurses actually work 24 hour shifts, but are allowed to sleep at night if they are not busy. There are times though that they are busy the whole 24 hours. In one interview a nurse stated that if she lays her head down and naps for about 20 minutes she feels much more alert. I have also tried taking a nap at work when there were no patients in the ER, and I did feel so much more alert, especially driving home. It is therefore wise to consider limiting shift length and hours worked per week per IOM recommendations. After reviewing the literature it is clear that the main problem is nurses not getting enough sleep between shifts which causes fatigue. In a study of nurses’ sleep habits, Geiger-Brown (2010) found that 58 percent averaged only 5. 5 hours of sleep. When they work three or four 12-plus hours a day, they are also unable to easily reestablish a â€Å"consistent sleep schedule†. In one research article it noted that allowing the nurses to nap, especially the night nurses showed improvement in alertness and feeling less fatigued and ultimately showed a reduction in errors or near errors (Fallis, McMillan, Edwards, 2011). It also noted that anagement needs consider to mandating that the 12 hour plus nurses are taking full uninterrupted breaks which also improves alertness. Most nurses are not taking full breaks and stay longer than the scheduled 12 hours which reduces their sleep and recovery time between shifts (Greiger-Brown, & Trinkoff, 2010). In a recent review of studies between 1970 and 1998, 12 hour shifts nurses were fatigued in 5 of 7 studies, and of 10 studies measuring performance, 4 were negative, and 6 were neutral; none showed positive effects. In this review, laboratory studies showed deteriorated performance; but field studies found no difference between 8 and 12 hours. Recent studies with stronger designs and methods have increased the evidence that questions the safety of 12-hour shifts. More recent studies as mentioned earlier demonstrate an increase in patient care errors when nurses work 12 hour shifts compared to 8 hours. The research question that has been uncovered related to nurses’ long work hours is if the long hours affect the health of the nurse and patient safety? In my institution other colleagues have stated that they feel that when working 12 hours or longer more than two days in a row really decreases their quality of care because they are tired. I feel more studies need to be done on the impact of working hours and the nurses’ health along with more evidence regarding patient safety. One ethical implication researching effects of 12-hour shifts is that the managers do not want to take away 12-hour shifts due to nursing shortage because they do not have to hire as many nurses to cover shifts. Another issue is that most nurses enjoy the twelve hour shifts even though they know they become really tired because they enjoy having more days off during the week. Managers may fear that nurses will leave to find jobs that offer 12-hour shifts. I feel this is ethically a problem with colleagues and coalitions because they are not looking at the negative effects on the nurses and the patients. With research it has become obvious that working longer hours can effect both the health of the nurse and safety of the patients yet our facility along with many others have not come up with adequate resolutions to the problem. Conclusion Twelve hour shifts contribute to flexible patterns of work, but the effects of delivery of direct care and staff fatigue are important topics for deeper examination. More recent studies as mentioned earlier demonstrate an increase in patient care errors when nurses work 12 hour shifts compared to 8 hours. Although 12 hour shifts are popular, evidence shows us that extended working hours, and working while fatigued and sleep deprived reduce vigilance and impair physical/behavioral functioning. The result has damaging effects on patient safety, quality of care provided and the health of the nurse. I believe it is the responsibility of the nurse to recognize the risks of working longer hours to keep the patient safe and to also maintain their own health. I used the Patterns of Knowing (White, 1995) to view my topic and to gather information on this literature review. These patterns of knowing in nursing include empirics, esthetics, ethics, and personal knowing (White, 1995). I used empirics by gathering factual information regarding my topic. I discussed issues in regards to ethics on my topic that was mentioned in chapter 3. I included my personal knowledge and experience with working longer shift hours, and also looked at the esthetic form by putting it all together and acknowledging what the problem is. Doing this literature review I realize that working the longer hours does put a strain on my overall health, and also has potential to put my patients at risk. I will focus more on getting better sleep, and I have asked my manager about working only 8 hour shifts. I also really want to pursue gathering more information about night nurses being able to nap.

Thinking About Pursuing a Graduate Degree in History

Thinking About Pursuing a Graduate Degree in History Are you considering a masters or doctoral degree in History? The decision to pursue graduate study in History, like other fields, is a complex one that is part emotional and part rational. The emotional side of the equation is powerful. The pride of becoming the first in your family to earn a graduate degree, being called Doctor, and living a life of the mind are all tempting rewards. However, the decision of whether to apply to graduate programs in History also entails pragmatic considerations. In a difficult economic climate, the question becomes even more perplexing. Below are a few considerations. Remember that this is your choice - a very personal choice - that only you can make. Competition for entry to graduate study in History is stiff. The first thing to recognize when it comes to graduate study is that it is competitive. Admissions standards for many graduate programs, especially doctoral programs, in History are tough. Peruse applications for the top Ph.D. programs in the field and you may encounter warnings not to apply if you do not have a particular score on the Graduate Record Exam (GRE) Verbal Test and a high undergraduate GPA (for example, at least a 3.7). Earning a Ph.D. in History takes time. Once you enter graduate school you may remain a student longer than you intend. History and other humanities students often take longer to complete their dissertations than science students do. Graduate students in History can expect to remain in school for at least 5 years and as many as 10 years. Each year in graduate school is another year without full-time income. Graduate students in History have fewer funding sources than science students do. Graduate study is expensive. Annual tuition typically ranges from $20,000-40,000. The amount of funding a student receives is important to his or her economic well-being long after graduate school. Some History students work as teaching assistants and receive some tuition remission benefits or a stipend. Most students pay for all of their education. In contrast, science students are often funded by grants that their professors write to support their research. Science students often receive full tuition remission and a stipend during graduate school. Academic jobs in History are hard to come by. Many faculty members advise their students not to go into debt to earn a graduate degree in History because of the job market for college professors, especially in the humanities, is bad. Many humanities PhDs work as adjunct instructors (earning about $2,000-$3,000 per course) for years. Those who decide to seek full-time employment rather than reapply for academic jobs work in college administration, publishing, the government, and non-profit agencies. Historians' skills in reading, writing and argumentation skills are valued outside of academia. Many of the negative considerations in deciding whether to apply to graduate school in History emphasize the difficulty of obtaining employment in academic settings and the financial challenges that come with graduate study. These considerations are less relevant for students who plan on careers outside of academia. On the positive side, a graduate degree offers many opportunities outside of the ivory tower. The skills that you will hone as you pursue your graduate degree are valued in virtually all employment settings. For example, graduate degree holders in History are skilled in reading, writing, and argumentation. Each paper you write in graduate school requires that you compile and integrate information, and construct logical arguments. These information management, argumentation, and presentation skills are useful in a variety of settings such as business, nonprofits, and government. This quick overview of pragmatic considerations in determining whether graduate study in History is for you highlights some of the challenges, but your academic and professional career is yours to make. Students who plan, take advantage of an opportunity and remain open to considering a range of career options increase the odds of a graduate degree in History paying off in the long run. Ultimately graduate school decisions are complex and highly personal. Only you are aware of your own circumstances, strengths, weaknesses, and goals - and whether a History degree fits into your life story.

The First Pillar Is The Creed Or Kalima Religion Essay Essays

The First Pillar Is The Creed Or Kalima Religion Essay Essays The First Pillar Is The Creed Or Kalima Religion Essay Essay The First Pillar Is The Creed Or Kalima Religion Essay Essay as America is called harmonizing to Islamic fundamentalist followings, spirit had taken a blow. The onslaughts were from an Islamic fundamentalist group called al-Qaida and that group, as Kleinfield puts it, altered peoples construct of what it means to experience safe in the modern universe. With the barbarous act of terrorist act by manner of plane highjacking, an Islamic fundamentalist group changed and unified one of the most powerful states in the universe. Yet, what Americans forget to look at the other side of the state of affairs and make non recognize what beliefs led to these terrorist onslaughts done on September 11, 2001, and all over the universe. In order to understand the footing of Islamic fundamentalism, one needs to research the basic cardinal beliefs this group has, the history on how it was started, and the effortless attempts that Islamic fundamentalist groups try to hold their beliefs spread throughout the universe. Before September, 11, 2001, some people may non hold heard of Islamic fundamentalism, but a group that bases their actions off of that belief system made their actions and beliefs heard when they killed about 3,000 incapacitated American citizens. In order for one to understand the significance and function of Islamic fundamentalists or extremists, one must understand the basic beliefs that these persons base their actions off of. Harmonizing to Jim Willis, writer of The Religion Book, Muslims believe there is one God, Allah, who has revealed himself through the Bibles. However, followings of Christianity and Judaism did non stay faithful to the book, so Allah took it upon himself to take his greatest prophesier, Muhammad, to order the Quran and give the universe its concluding warning. The footing of Islamic beliefs is that people will be judged on how good they submit to Allah during their one life and to follow the five demands called the five pillars of Islam. The first pillar is The Creed or Kalima. The credo states that There is no God but Allah and Muhammad is his courier. This is the confession that Muslims recite at least one time every twenty-four hours. The 2nd pillar is Daily Prayer or Salat. This pillar requires followings to pray five times a twenty-four hours and travel through a series of rites before supplication. First, the single washes themselves, face toward Mecca, and declaim Arabic supplications they learned in childhood. After a series of supplications, the worshipper will so bow, topographic point custodies on articulatio genuss, declare glorification to God, and after once more praising God in a standing place, descend to a position of complete entry with articulatio genuss, brow, and custodies on the land, praying, Glory to my Lord, the Most High, harmonizing to Willis. The following pillar is called Almsgiving or Zakat. During this pillar, it states that between 2 and 10 per centum of income is to be shared wi th the hapless of the community in order to retrieve the less fortunate. The following pillar is Fasting or Sawm. During the month of Ramadan, no nutrient, drink, smoke, or sex is allowed during daylight hours. The concluding pillar is called Pilgrimage or Hajj. At least one time in their life-times, followings of Islam are expected to do a pilgrims journey to Mecca in Saudi Arabia. Thos are the five footing beliefs that Islam followings are expected to follow in order for full entry to Allah. However, even though it is the basic beliefs of Islam, Islam fundamentalists view the Quran in a different, more actual manner. Harmonizing to Willis, the term fundamentalist can be applied to any who read the Bibles of their faith in a actual, non-metaphorical manner, as defined by recognized, conservative, Orthodox governments. Willis states that in today s society, the image of Islamic fundamentalist is one who seeks to assail the United States, naming it a kid of Satan. The term Islamic fundamentalists were given the name by the media after the Militant Islamics coup detat of Iran in the 1970s, which will be discussed in item subsequently. In Sura 4:95 of the Quran, it says, Not equal are those trusters who sit and receive no injury, and those who strive and battle in the cause of Allah with their goods and their individuals. God hath granted a class higher to those who strive and battle. The term fundamentalist would be applied to those who read the Quran literally in this poetry when they see the word battle , they believe the term to intend existent flesh-and-blood warfare alternatively of religiou s warfare, harmonizing to Willis. In 1979, the Islamic Revolution started due to the strong resistance against the Mohammad Reza Shah, and how he used the secret constabulary to command the state, harmonizing to the Iran Chamber Society. Ayatollah Khomeini led the resistance by administering his message through music and spread throughout Iran get downing the Islamic Revolution. Harmonizing to the New York Times, Iran s capital, Tehran was in rebellion on January 19, 1979, doing the Shah to fly the state and happen expatriate in the United States. The Shah decided to fly to America due to the strong international relationship he held with the United States authorities due to anterior battles in international personal businesss. Harmonizing to the New York Times, in 1953, the C.I.A. in secret helped subvert Iran s premier curate to reconstruct the Shah to his throne after being exiled for a short clip. As to why the American s helped convey a ruthless leader back to power was answered by the tallness of the Cold War b etween the U.S. and the Soviet Union. Iran was purportedly a sight that communism could be spread to, nevertheless, if the Shah was hand in glove working in positive dealingss with the United States, this helped forestall the spread of communism, the United States end in the Cold War. However, back in Iran, the Shah was viewed as a autocrat due to his autocratic manner of authorities controlled by his secret constabulary, as stated before. This culminated in 1979 when Khomeini s followings sought greater political freedom and 1000000s of people were in rebellion of the Shah, doing him to fly. It was President Carter of the United States of America that continuously denied the claim that the Shah was flying Iran but having malignant neoplastic disease intervention in the United States for his ailing and decreasing wellness. Ayatollah Khomeini vowed to return to organize an Muslim authorities in Iran and more than a million people protested in the streets and cheered Khomeini and denounced the Shah. When Khomeini gained power, persons in the Middle East believed it would convey freedom, yet Khomeini assumed control as Supreme leader of an Islamic theocratic government, harmonizing to the New York Times. Khomeini brought rigorous Islamic beliefs to the country of Iran in that adult females lost societal privileges, in Khomeini s position, and forced to have on head traditional Muslim caput coverings and full-body cloaks. Khomeini was assisted by a rolling ground forces of religious hatchet mans, as he called them, called the Mullah who held a bulk of the authorization under Khomeini s regulation. It was Khomeini who identified the United States as the Great Satan and an enemy of Islam, which are still used in today s society with Islamic fundamentalists. R.W. Apple, a letter writer to the New York Times, wrote people were intoning Death to the Shah! That slogan rapidly came to be Death to America, due to America s support of the Shah and finally culminated with 1000s of immature Iranians, most of whom were Islamic fundamentalists, took over the U.S. embassy compound in Tehran on November 4, 1979, and took 66 American sureties. Harmonizing to the New York Times article, the surety state of affairs lasted 14 months, led to the deceases of eight American soldiers in deliverance operations that were unsuccessful, and created a step of misgiving and choler that is still apparent in today s society. It was the actions of Ayatollah Khomeini that coined the term Islamic fundamentalist in his position that Americans were the enemy of Islam and seeking to convey about a western civilization to Islamic faith. Mohammad Mohaddessin, writer or the book Islamic Fundamentalism: The New Global Threat, elaborated on what he called the two pillars of Khomeini s regulation that allowed Khomeini to stay in power even though he used forceful and more barbarous tactics than the Shah of all time did in the part of Iran. Mohaddessin argues that Khomeini used the two pillars of panic and export of Islamic Revolution theories and thoughts. Within hebdomads, the Khomeini led Islamic Republic became one of the most barbarous signifiers of authorities with the Mullah mobilising panic squads on followings of the People s Mojahedin. The People s Mojahedin was yet another political group that believed in democracy and opposed the Islamic Republic. In old ages after Khomeini s coup detat of Iran, Massoud Rajavi, leader of the People s Mojahedin, become one of the most popular figures of Iran. However, utilizing his beginning of panic among the people of Iran, Khomeini issued a decree doing Rajavi ineligible to run for office. Khomeini took his power to a greater extent by taking several thousand political prisons, tormenting them, and killing about 100 protagonists of the People s Mojahedin motion, harmonizing to Mohaddessin. Even with his panic stamp downing the people of Iran to follow his beliefs, Khomeini knew that he must distribute his positions of Islam fundamentalism in order to others to follow his beliefs. One of Khomeini s first Acts of the Apostless of utilizing his panic and seeking to export fundamentalist beliefs, happened in the coup detat of the American Embassy in Tehran. Khomeini used his coup detat of the American Embassy to state the universe his ideas of anti-imperialism and his subdued positions on democracy. Harmonizing to Mohaddessin, he so accused the People s Mojahedin democratic party of close ties with the United States, which was the Great Satan harmonizing to Khomeini. Khomeini so decided to utilize his new belief of Islam fundamentalism motion and was a major cause of the eight twelvemonth Iran-Iraq War. It was the Acts of the Apostless of the Mullah s, Khomeini s religious hatchet mans as he called them, that was driven by the thought of spread outing the beliefs of Islamic fundamentalism that was one of the chief causes of the start of the war. Harmonizing to Mohaddessin, Khomeini stated that it was a necessity of holding Iraq go a bulk follower of the Islam R epublic, or Islamic fundamentalist group, because from a geopolitical point of view, if Iraq was to fall to Islamic fundamentalism, it would hold an outsource to all of the adjacent states. The eight twelvemonth war ended in a deadlock but Khomeini was left dejected because his hopes of doing Iraq a primary beginning of an Islamic fundamentalist group failed, even though the Mullah s strengthened their function in parts of Iraq and would finally be defeated yet once more in the Iranian Gulf War. The part of Iraq is still to this twenty-four hours a cardinal location that the Mullah s privation to assail and distribute the point of view of Islamic fundamentalism. Recently, British Petroleum ( BP ) has been in the intelligence, non to their liking, sing the oil spill in the Gulf of Mexico. Oil is a valuable trade good in today s universe and it was a cardinal plus that allowed Khomeini to come into power during his overthrow of the Shah. One must inquire, How does a group of terrorists supply guns, preparation, candidacy, and all other aspects of their concern that require a great bulk of money? And that reply is oil. Harmonizing to Mohaddessin, the Persian Gulf part, where Islamic fundamentalism was started, has 65 per centum of the universe s entire oil militias. When Khomeini overthrew the Shah in 1979, Iran was the 2nd largest exporter of oil in the universe, doing Khomeini relevant when he decided to subvert the Shah government in Iran. Not merely did it do the country of Iran relevant, but besides provided Khomeini and his inheritor of Islamic fundamentalism with financess for political propaganda runs, webs to enroll and develop Islam ic fundamentalists, and allowed Islamic fundamentalists the gift of corrupting countries with free oil in return for leting Khomeini and his inheritor to hold the beliefs of Islamic fundamentalism be instilled in that part. Oil was one non merely a bargaining bit for Islamic fundamentalism to go on to distribute throughout the Middle East, but besides was the chief beginning of income to a group that relied itself on distributing its message and needed money to make so. The general location of Iran and the easy entree to a cherished trade good like oil in a oil booming part, allowed Islamic fundamentalism to go on to distribute throughout the Middle East and in states all around the universe. With all of the money that oil purportedly brings in to Islamic fundamentalist groups, what does that intend in footings of the panic message that Khomeini wanted to distribute along with the association of Islamic fundamentalism? One of the hallmarks of Islam fundamentalists or extremists is the usage of terrorist act to distribute the fundamentalist beliefs and invoke panic into people who do non believe in the fundamentalist manner. Following the wake of September 11 and the bombardments of the twin towers in New York City, there has been the impulse for some Americans to label all Islamic followings as terrorists, nevertheless, that is non the intended instance for this peculiar writer. Mohaddessin states that terrorist act has been one of the primary tools of the Mullah government to distribute fundamentalism. He points to specific events within the past 25 old ages such as the 1986 street bombardments in Paris, are closely tied to Islamic fundamentalist governments. Mohaddessin states that in today s society, many of the terrorist Acts of the Apostless that are done by Islamic fundamentalist followings can be dated back to the influence of Khomeini, or as Mohaddessin calls him, the godfather of terrori st act. The book contains a long list incorporating more than 100 terrorist activities done by Islamic fundamentalists within the past 40 old ages runing from surety pickings, bombardments in public topographic points, commandeering planes, suicide missions, and many more. In today s society, one of the more good known Islamic fundamentalist groups is Al-Qaeda, led by Osama bin Laden. As stated before, al-Qaida s terrorist onslaught on the World Trade Center was one that altered American security and international dealingss and made most Americans aware of the beliefs and Acts of the Apostless of Islamic fundamentalist groups. Harmonizing to Global Security, al-Qaida was established in 1988 by bin Laden to help Afghan opposition to get the better of the Soviet Union. The current end of al-Qaeda, much like other Islamic fundamentalism groups, is to set up a pan-Islamic Caliphate throughout the full universe by working with other Islamic extremist, or fundamentalist, groups to subvert non-Islamic trusters and throw outing Westerners. In February 1998, al-Qaeda issued a statement stating it was the responsibility of all Muslims to kill U.S. citizens. Besides in 1998, high ranking al-Qaeda leaders issued a declaration naming on Muslims to kill Americans an d, those who are allied with them from among the assistants of Satan, harmonizing to Global Security. Certainly, al-Qaida s positions are similar to other Islamic fundamentalist groups on the point of view of seeking to extinguish all of the Great Satan and seeking to distribute their beliefs and message throughout the universe. Al-Qaeda s terrorist Acts of the Apostless have been plenty and their leader, Osama bin Laden, stated public that he has a strong desire to obtain and use biological, chemical, and atomic arms. Mohaddessin states that there are legion undertakings within the Mullah s of Iran that are aimed at obtaining and the building of biological, chemical, atomic, and conventional arms every bit good. Harmonizing to his book, Mohaddessin stated that the Persian government bought three billion dollars deserving in weaponries from North Korea in the early 1990 s. His research and beginnings list legion specific sites and the huge building, proving, and research for doing arms of mass devastation available to Islamic fundamentalists to distribute their message throughout the universe. After Khomeini s decease in 1989, the new leader of the Mullah s in Iran and Islamic fundamentalist group was Rafsanjani who sharply pursued Iran s atomic capablenesss because of the studies that the United States and Soviet Union were actively doing and in control of atomic arms. After the Iranian Gulf War, Germany informed Tehran that it would non help the Mullah s government in the adjutant of atomic aid. Rafsanjani so publically vowed that the Islamic Republic, led by the beliefs of Islamic fundamentalism, would prosecute to do atomic arms. This study was made in the early 1990 s and one can merely conceive of the sort of weaponries and arms of mass devastation Islamic fundamentalist groups hold in today s society. There is an on-going menace by Islamic fundamentalist groups to the Western civilization and society because of the weaponries buildup over the past 20 old ages doing an onslaught against our society readily available. In correlativity to the Islamic fundamentalism beliefs, America would surely be one, if non the highest, points of involvement of be aftering an onslaught similar to September 11, 2001. One of the most hard things about observing and seeking to halt al-Qaida onslaughts, harmonizing to former CIA Director George Tenet, is that all of the Islamic fundamentalist groups have foster followings around the universe and is now an intricate web of confederations of extremists. Tenet stated that some of the terrorists are actively sponsored by national authoritiess that harbor great antipathy toward the United States. Al-Qaeda actively targets American, Jewish, and Muslim authoritiess that they see as corrupt and have been linked to legion terrorist onslaughts within the past 10 old ages that include: 2003 auto bomb onslaughts on three residential compounds in Saudi Arabia, 2002 auto bomb onslaught and failed effort to hit down Israeli jet line drive with projectile missiles, 2002 onslaught on a Gallic oiler off the seashore of Yemen, 2002 detonation of a fuel oiler outside of a temple in Tunisia, 2001 onslaughts on the World Trade Center, and many others. William Rashbaum, a uthor for The New York Times, reported that the cardinal figure in a failed self-destruction secret plan to bomb three New York City subways lines last twelvemonth had contact with a feared senior al-Qaeda secret agent. Najibullah Zazi, and two others admitted that he met with two senior al-Qaeda leaders, including Saleh al-Somali who is al-Qaida s caput of external operations, in Pakistan for arms and explosives preparation. Even though the metropolis bombardments did non travel through, these type of actions exhibit the sort of influence al-Qaida has in today s society on seeking to distribute their message of Islamic fundamentalism to the remainder of the universe. The group spreads their message the lone manner they know how to, much like their laminitis Khomeini, by utilizing beastly force and force. Harmonizing to Mohaddessin, research workers in the West have two common misunderstandings of Islamic fundamentalism. Research workers in the West believe that the outgrowth of fundamentalism is a byproduct of poorness and unequal distribution of wealth so the manner to work out this state of affairs and acquire rid of Islamic fundamentalism are societal and political reforms. Mohaddessin argues that even though fundamentalist does take advantage of societal want and the deficiency of economic chances in the country, the factor of authorities corruptness in the 1970 s besides caused Islamic fundamentalism to derive impulse among people. Even though Mohaddessin argues that all factors have had a factor distributing the beliefs and pulling others to Islam, two of the chief factors that seem to pull others to Islamic fundamentalism are a sense of belonging based on beliefs and economic chance. Lost Male childs: Why Our Sons Turn Violent and How We Can Salvage Them by James Gabirino was a book written about why troubled striplings boys turn to packs. Three of the chief factors that Garbirino pointed out as to why striplings turn to fall ining packs is the demand for power, sense of belonging, and the opportunity to acquire rich quick. Now, one understands that packs and a spiritual group are two different things, nevertheless, both hold certain qualities as to why they attract immature work forces. In 1998, al-Qaida was started by Osama bin Laden, who recruited 1000s of adolescent immature work forces from tonss of states who he trained to be combatants as portion of an Afghan opposition to get the better of the Soviet Union, harmonizing to Global Security. One of the chief grounds that Islamic fundamentalism was popular during the 1970 s was because of the promise of political freedom and freedom to make what the single wants. Khomeini promised, even though he did non ma intain that promise, and gave false hope that by subverting the Shah s secret constabulary and his tyrant leading, so the people would hold freedom to believe and make what they wish. However, when Khomeini came into power and put up assorted Mullah s to convey panic, force, and barbarous force to all who did non follow in the beliefs of Islamic fundamentalism while besides restricting adult females s power in society that they had gained during the epoch of the Shah s regulation. Khomeini s Islamic Republic gained impulse in the Middle East by promoting immature stripling male childs and small male childs to be portion of a new popular political motion by offering economic chances and a sense of belonging in a country where poorness and unemployment were common. Mohaddessin stated that, Muslim fundamentalism is based upon a medieval and totalitarian political orientation. It interferes in the most fiddling personal affairs of the people, enforcing a inhibitory system that eliminates all avenues for free, political, societal, and economic activities. Furthermore, owing to its nature, this political orientation recognizes no geographic boundaries, and, hence, elevates the export of revolution, crisis, and break of all norms of international dealingss. During a clip of political instability in the Middle East, Khomeini used his political orientation of Islamic fundamentalism to transform the lives of people throughout the full universe. Surely, the impressions and beliefs of Islamic fundamentalism affect people even in today s society, like the actions done by Islamic fundamentalist followings and how they crashed two planes into the World Trade Center in New York City. By killing about 3,000 guiltless American citizens, Americans were speedy to recognize the actions done by Islamic fundamentalists reflected their beliefs of the Western civilization, or harmonizing to them, the Great Satan . Since the beginning of the Islamic fundamentalist epoch, the point of view and belief of Islamic fundamentalist followings is to enforce force and beastly force as a agency of allowing the universe know their beliefs. They hold no compunction and do non keep their sentiment to themselves by go oning to voice their displeasure of Americans and America s Alliess claiming to extinguish the Great Satan . Osama bin Laden, leader of one of the most celebrated Islamic fundamentalist groups in al-Qadea, promises that there will be more onslaughts and with the weaponries buildup that Islamic fundamentalists are actively engaged in and the explicit hatred they hold for the Western civilization, there is a echt and on-going fright of yet another terrorist onslaught lay waste toing the West. It is of import to understand the basic beliefs of Islamic fundamentalism and the danger that these persons may posses with their terrorist act attitude and free entree to arms of mass devastation, because the Western civilization is ever at hazard due to the beliefs of the Islamic fundamentalists that base off the Quran, the Bible that Muslim fundamentalists take really literally. In Sura 4:95 of the Quran, it says, Not equal are those trusters who sit and receive no injury, and those who strive and battle in the cause of Allah with their goods and their individuals. God hath granted a class higher to those who strive and battle, hopefully the United States does non see another terrorist act onslaught like September 11, 2001, that devastated the state and made the Islamic fundamentalism beliefs universally known. Kyle

The Top 20 Figures of Speech

The Top 20 Figures of Speech A figure of speech is a rhetorical device that achieves a special effect by using words in a distinctive way. Though there are hundreds of figures of speech,  here well focus on 20 top examples. Youll probably remember many of these terms from your English classes. Figurative language is often associated with literature and with poetry in particular. Whether were conscious of it or not, we use figures of speech every day in our own writing and conversations. For example, common expressions such as falling in love, racking our brains, and climbing the ladder of success are all metaphors- the most pervasive figure of all. Likewise, we rely on similes when making explicit comparisons (light as a feather) and hyperbole to emphasize a point (Im starving!). Did You Know? Figures of speech are  also known as  figures of rhetoric, figures of style, rhetorical figures,  figurative language,  and  schemes. 1:15 Watch Now: Common Figures of Speech Explained Top 20 Figures of Speech Using original figures of speech in our writing is a way to convey meanings in fresh, unexpected ways. They can help our readers understand and stay interested in what we have to say.   1.  Alliteration: The repetition of an initial consonant sound. Example: She sells seashells by the seashore. 2. Anaphora: The repetition of the same word or phrase at the beginning of successive clauses or verses. Example: Unfortunately, I was in the wrong place at the wrong time on the wrong day.   3. Antithesis: The juxtaposition of contrasting ideas in balanced phrases. Example: As Abraham Lincoln said, Folks who have no vices have very few virtues. 4.  Apostrophe: Directly addressing a nonexistent person or an inanimate object as though it were a living being. Example: Oh, you stupid car, you never work when I need you to, Bert sighed. 5. Assonance: Identity or similarity in sound between internal vowels in neighboring words. Example: How now, brown cow? 6. Chiasmus: A verbal pattern in which the second half of an expression is balanced against the first but with the parts reversed. Example: The famous chef said people should live to eat, not eat to live. 7. Euphemism: The substitution of an inoffensive term for one considered offensively explicit.  Example: Were teaching our toddler how to go potty, Bob said. 8.  Hyperbole: An extravagant statement; the use of exaggerated terms for the purpose of emphasis or heightened effect. Example: I have a ton of things to do when I get home. 9.  Irony: The use of words to convey the opposite of their literal meaning. Also, a  statement or situation where the meaning is contradicted by the appearance or presentation of the idea. Example: Oh, I love spending big bucks, said my dad, a notorious penny pincher. 10.  Litotes: A figure of speech consisting of an understatement in which an affirmative is expressed by negating its opposite. Example: A million dollars is no small chunk of change. 11.  Metaphor: An implied comparison between two dissimilar things that have something in common. Example: All the worlds a stage. 12.  Metonymy: A figure of speech in a word or phrase is substituted for another with which its closely associated; also, the rhetorical strategy of describing something indirectly by referring to things around it. Example: That stuffed suit with the briefcase is a poor excuse for a salesman, the manager said angrily. 13.  Onomatopoeia: The use of words that imitate the sounds associated with the objects or actions they refer to. Example: The clap of thunder went bang and scared my poor dog. 14.  Oxymoron: A figure of speech in which incongruous or contradictory terms appear side by side. Example:  He popped the jumbo shrimp in his mouth. 15.  Paradox: A statement that appears to contradict itself. Example: This is the beginning of the end, said Eeyore, always the pessimist. 16. Personification: A figure of speech in which an inanimate object or abstraction is endowed with human qualities or abilities. Example: That kitchen knife will take a bite out of your hand if you dont handle it safely. 17.  Pun: ​A play on words, sometimes on different senses of the same word and sometimes on the similar sense or sound of different words. Example: Jessie looked up from her breakfast and said, A boiled egg every morning is hard to beat. 18.  Simile: A stated comparison (usually formed with like or as) between two fundamentally dissimilar things that have certain qualities in common. Example: Roberto was white as a sheet after he walked out of the horror movie. 19.  Synecdoche: A figure of speech in which a part is used to represent the whole. Example: Tina is learning her ABCs in preschool. 20. Understatement: A figure of speech in which a writer or speaker deliberately makes a situation seem less important or serious than it is. Example: You could say Babe Ruth was a decent ballplayer, the reporter said with a wink.

Dunns Emporium Experiences Growth Research Paper

Dunns Emporium Experiences Growth - Research Paper Example Leadership is the process of motivating, empowering, influencing and communicating with people to achieve organizational goals in a given situation. The role of a leader is to encourage the team to work towards the goal, define the task by providing a structure, classify the decorum, policies and the working methods for the team and evaluate the performance to enhance the individual development of the team. Therefore a leader motivates, encourages, guides creates followers, controls, negotiates and inspires the team for quality performance achievement. Joseph Dunn needs to act as a motivator and encourage the staff of Dunns Ski Emporium and The Deli to acknowledge his decision of the merger. He would act as a mediator to enable consensus among the employees. He must act as an initiator to promote innovation that can be brought in the strategic implementation of both the firm’s growth. His role as a strong leader is important to assure complete harmony among the employees of th e firm by integrating the departments. He must implement working methods and behavioral conduct as well as facilitate ideas from a team which was a problem being faced in The Deli due to the new ice-cream manager, John Levitz as his arrogant behavior towards his subordinates were inappropriate and was discouraging the team to perform and coordinate among themselves.On the other hand, John was young and enthusiastic about the expansion of the ice-cream business which would benefit from the merger of the two firms.

Charles Babbages Contribution to Development of Computer Technology Essay

Charles Babbages Contribution to Development of Computer Technology - Essay Example According to the research findings, it can, therefore, be said that  Charles Babbage, an inventor, was born in Britain at a time when science was just beginning to take shape and influence in society, with no clear definition of its varying disciplines. During that time, people were mediocre since they still dwelt on the calculus mathematical theories of Isaac Newton, and had not made any advancement in the field. This state of circumstances disappointed Charles so much, to a point that he wanted change thus beginning the era of computers. The man in question was born on 26th December 1791 in Walworth, Surrey according to Anthony Hyman. This was in London. His father was called Benjamin Baggage, who was in partnership with the Praeds, owners of the Bitton estate and Betsy Plumleigh Babbage. His mother, who was a great influence in his life, was called Betsy Plumleigh Teape. In the year 1808, his family moved to the old Rowdens house in East Teignmouth, where his father was appointe d the warden of the St. Michael church. As a child, Charles was very inquisitive and stopped at nothing until his search for the truth is found. In his book, he tells of instances when his curiosity led him to dismantle his toys when he didn’t understand their way of working. His father was a rich man thus he was accorded the best education around in the form of expensive schools and tutors. When he was eight years of age, he was relocated to a country school to recuperate from a severe fever. During his stay here, his parents stressed that he be left to complete rest for speedy recovery. The loneliness he experienced got to his head that he started to be philosophical, questioning everything that came into contact with him and the general worldview. He went as far as experimenting in devil-worship incarnations to test their credibility. Later he joined King Edward VI School in South Devon, only to succumb to deteriorating health, forcing him to be tutored at home. It was thr ough the private studies that he developed a passion for mathematics especially by the influence of Stephen Freeman, who was an ‘astronomer’. Eventually, he was able to start schooling at Trinity College in Cambridge in 1810, where he discovered a void in the system of learning at the institution. Birth of an idea He and his friends came together to form the Analytical society between the years of 1812 and 1814 so as to challenge the University’s laid-back approach to the mathematical field. It was a successful venture that saw the publication of several books on the topic of calculus. It was during this time that Charles started to battle with the idea of creating a machine to aid in the arithmetic process. According to Bowden, Charles was thinking to himself on the possibility of devising a tool that would perform logarithms with utmost precision rather than using the incorrect manuals in use at the time. He was challenged by the French’s decision to use human mathematicians to compute new tables.

Economic and Business Context Essay Example | Topics and Well Written Essays - 2000 words

Economic and Business Context - Essay Example in 1894 in Manchester, after wards Marks entered in to partnership with Thomas Spencer, and they established a company known as Marks & Spencer (M & S). In the initial time the company only concentrates in the area of selling of goods they are purchased the goods from wholesalers and other intermediteries after they established a good market base in UK they entered another area of business. Marks & Spencer became a limited company after adopting revolutionary policy of buying directly from manufacturers. In 1926 they stepped in textile industry. It is mainly concentrating on the selling of British produced goods for the purposes of maintaining cordial relation with British manufacturers by maintaining a new brand named ‘St Michael’ mainly they market clothing and Food products. The key factor behind their success is the motto of providing better customer service relation, by accepting unwanted goods from their customer and refunding the cash. The company tries to provide only quality goods by maintaining their reputation for offering fair value for money. In 1988 the company acquired Brooks Brothers an American clothing company and Kings Supermarket a food chain. Currently the company expands and diverse their business activities in the area of Food retail stores and Home ware retailing also. They are mainly marketing the clothing products through their retail outlets. â€Å"Marks & Spencer, leading international departmental, has drawn up ambitious expansion plans in India and China starting as early as next year, its chief executive Stuart Rose has said.† (Marks & Spencer plans to expand in India, china, 2007). The company also launched a web site for the purpose of online marketing system associated with Amazon.com. Marks & Spencer’s better customer service and quality products will helps them to improve their business in the area of online marketing also. â€Å"For years customer service has been a fundamental part of consumers offline shopping

An Equal Opportunity for Minorities Essay Example | Topics and Well Written Essays - 500 words

An Equal Opportunity for Minorities - Essay Example This is what some minorities actually receive in most of our communities. Recognizing the hazard that this brings such as violence and rebellion both to the minorities and to the native Americans, the government and other citizens have taken initiative to abate this problem. Since these immigrants have come to the US soil with much dream and aspiration, they have proven to be more of an asset to the government, with 40% of our scientists coming from this group. The minorities proved to be a potent part of our nation's economy. Realizing this potential, the government desire to give them equal educational opportunities with the native Americans. Giving equal education opportunities for minorities will increase the quality of our labor force, thereby increasing over-all production in the country. these people represent a considerable percentage of the people that we depend on for our political and economic soundness. This paper wishes to look at how the American education system is changing with the influx of foreigners in the country. This report aims to look at the specific adaptation schemes done by the government to take into account this demographic change. We particularly focus on the government and non-government institutions that provide education opportunities to the minorities. We

Revenue management Assignment Example | Topics and Well Written Essays - 500 words - 1

Revenue management - Assignment Example Therefore, by 2020, it is projected that there will be a shift in landscape in RM. To ensure the success of RM strategies, the revenue managers in the hospitality industry need to be convinced of the ability to deliver return on investment and made aware of the resources needed to maximize potential. The hotels should also make sure that their organizational structure supports the RM policy. Besides, there needs to be a cultural understanding which major department like sales, marketing, and revenue work together to share information crucial to revenue management success. Furthermore, it is forecasted that the application of RM will become more strategic and will be supported by the increasingly sophisticated technology. This is because it includes more of income streams of the hotel. In this regard, by 2020, revenue management is likely to be applied to function-space and also incorporate revenue streams including restaurants and spas, as well as golf courses. Consequently, the RM function will become more central to operations of the hotel, and will quite to be expected be a separate department under supervision of the general manager. The core, strategic role of revenue management will need upgraded measurement techniques (Hayes and Miller 55-68). This implies that other than revenue per available room (RevPAR), the future RM might have a profit-oriented metric, for instance, total revenue per available room or the gross operating profit per available room (GOPPAR). As for the future revenue managers, they will require analytical, leadership, and communication skills. A formal RM education as well as negotiation skills would also be helpful. According to (Nessler 86), the managers would also use tools or internal compression which will aid them establish the unconstrained demand and close out close non-profitable channels. Since RM will move from tactical to a more strategic role, analytics along with supporting technology will play a crucial role in

An Equal Opportunity for Minorities Essay Example | Topics and Well Written Essays - 500 words

An Equal Opportunity for Minorities - Essay Example This is what some minorities actually receive in most of our communities. Recognizing the hazard that this brings such as violence and rebellion both to the minorities and to the native Americans, the government and other citizens have taken initiative to abate this problem. Since these immigrants have come to the US soil with much dream and aspiration, they have proven to be more of an asset to the government, with 40% of our scientists coming from this group. The minorities proved to be a potent part of our nation's economy. Realizing this potential, the government desire to give them equal educational opportunities with the native Americans. Giving equal education opportunities for minorities will increase the quality of our labor force, thereby increasing over-all production in the country. these people represent a considerable percentage of the people that we depend on for our political and economic soundness. This paper wishes to look at how the American education system is changing with the influx of foreigners in the country. This report aims to look at the specific adaptation schemes done by the government to take into account this demographic change. We particularly focus on the government and non-government institutions that provide education opportunities to the minorities. We

Work Specialization techniqu. Advantages and drawbacks Essay

Work Specialization techniqu. Advantages and drawbacks - Essay Example The topic under focus here is Work Specialization. It is one of the key elements to consider while devising a structure for one’s organization. Work specialization is defined as the extent till which work that needs to be done to achieve organizational goals is broken down into smaller manageable chunks of tasks. Most organizations might collapse without specialization because it is merely impossible for everyone to know everything and possess all the necessary skills needed to run the whole organization. It is the process that breaks down the big goals into small parts and then each part is assigned to one individual according to his/her skills set. These workers specialize in performing the assigned activity possessing the skills they already had. It is the approach by which the skills of a particular employee can be utilized at the best. The work is performed in repetition which also makes the employee more experienced with it reducing chances of error and hence caters to t he smooth functioning of the entire organization leading to the ultimate goal.

Philosophy Notes on Kant Essay Example for Free

Philosophy Notes on Kant Essay Morality is entirely determined by what someone wills because a good will is the only thing that is good with out provocations. Every other character trait is only morally good once we qualify it as such. Kant morality is all about what someone wills and not about the end result or consequence is. Someone can be happy but for immoral reasons. Kant it is really the thought that counts. Motivation is everything. What does Bentham and Mills look at consequences and happiness. Kant thinks of these things as matter of riddle in the game of morality. Think of it this way. If we think of someone as our favorite moral hero in past and present because of the various things they did, accomplish, brought about. All you are doing when you admire such people is judging results. What we see. But if we are really judging moral worth on what we see we are then failing to adjudicate moral worth entirely. After all we have no idea what the shop clerks real motives are. Perhaps she is honest because she thinks this is the best way to make money. If this wasn’t her true motivation she may start ripping people off as soon as she could. Think back to what glaucon says. He says it is better to appear to be moral than to really be moral. Kant believes this is a much more comman way of going aobut things that it probably happens most of the time given that many people don’t have moral motivations that we really have no way of knowing what peopole’ motivations are. Perhaps Abraham Lincoln and MLK motivations were not stemmed form good will at all but only for honor, fame or fortune. We simply don’t know. Remember there are many people who were unlucky failed to bring any results even thought they hated good will or moral principles. They are forever unknown they are forever anonymous. He says we should stick to what pure reason tells and tells us it doesn’t care about consequences, doesn’t care about actions, doesn’t care about results. It cares about motivation. We can never tell anyone’s motivation just from look at them. Kant argues that if we look around the natural world that by in large things seem to fill their end for what they are designed for. Cheetahs usually have four legs and are good at catching prey. By and large, natural entities fulfill their designed purpose. Eyeballs are designed to see and usually do. Sure they eventually pucker out but for most part our eyes work how they were designed to function. But if we look at this larger thing called the human person and then assumed he was designed for happiness in the same way a cheetah was designed to run and catch prey and the eyes were designed to see we can conclude that the design of the human person were wrong. We can’t be designed for the purpose of being happy because if we were we would be a strange anomaly of nature. But why do we say this because we are species. We are a species that is defined by pain and suffering and anxiety and depression that results in misery. We are sad, miserable and pathetic. Unfortunately, argues Kant, we aren’t designed to be happy. The purpose of life isn’t to be happy! It is to be moral. Instead we are designed to be moral. Happiness may forever be out of reach but that’s ok because that is not the purpose of being human. The purpose of being human is to be moral and happiness may not have anything to do with each other. Kant’s theory is seen as deontological because it is all about duty. Kant argues that to be moral we have to consider duty compared to what we might want to do based on our emotions and inclinations. The name of the game is DUTY. We must be motivated by duty in order to be moral. Ex: if we only help out in a soup kitchen only because it makes us feel good then we aren’t properly moral. If happiness is your only motivation because once you stop feeling good about it you will quit working in the soup kitchen. You will burn out fast. Emotions can’t motivate. They can accompany but can’t motivate it. You can’t be motivated by sentiments or emotions. They aren’t moral or immoral. They are just†¦there. We can’t help them. In other words we are motivated to help because it’s your duty and you also like to help then that is all fine and good. Consider your enjoyment a nice bonus but a bonus that is entirely outside of the moral realm. Again difference on one hand being motivated by duty whilst liking it all the while and on the other hand being motivated only because you like it is this. If you are motivated by an emotion than once you cease having that emotion you will quit. The man who works in the soup kitchen only because it makes him feel good will immediately quit because he wants to feel good about it. It won’t take him long because it will be really stressful because it’s really smelly work. You have to deal with smelly people. If someone says if your heart isn’t in it then it is not worth doing. Kant would say this is total rubbish. You have no control over whether your heart will be in it or not. Do it because it is your duty. You only do it because of your rational or rationality. Morality is based on duty and that’s it. So how do figure out what duty is. Kant says we figure out to be what means to be the dutiful person by considering the act from pure reason alone and to get rid of emotion and sentiment. Duty stems from pure reason. Acting from sentiment and emotion is not properly rational. Kant wants to figure out what it means to be a rational, moral person. He does this by considering what pure reason is and pure reason is an aspect of the human person that is not particular to emotions or passions, or pathology or hormones or sentiments. For Kant, rationality is something that is much more pure. Something entirely bound up with nothing biological. Nothing evolutionary. Nothing emotional. Nothing empathetic. Kant would have been very much at home with the idea of the intergalactic senate. Lots of different sorts of biological beings with various physical attributes but all sharing in the same transcendental rationality attached to their particular alien biology. He would have been much more in line with Spocs decision making than captain kirk. Kant is spac. Most of us acting on emotion like Captain Kirk aren’t being truly ration and therefore aren’t truly being moral at least as far as Kant is concerned. To do the moral thing is to do that thing which is based on duty. We determine what our duty on what maxims can be universalized with out contradiction. We consider our duty via pure rationality and pure rationality tells us that one only acts morally if their actions are universalizable. Kant it is important to consider morality this way because this way we can make morality certain and self-evident. To say we act on a universalizable maxim is to say that a immoral action is precisely that action with is based on a maxim that can not be universalized with out contradiction. Thus, the reason you cannot steal is because to base ones action on stealing you would have to have one maxim that steal if you cannot afford to pay. But this creates a situation that cannot be universalized. If everyone stole if they cannot afford to pay then there would be no such thing as theft. This would destroy the very concept of legitimate theft. You would destroy the very concept of property and ownership making theft impossible. . You can only make sense of stealing most people don’t steal most of the time. Thus to act immorally is to count on everyone else or most of everyone else to follow a certain role precisely in order for you to get away with not following that rule. What holds for stealing also holds for lying. You can only get away with lying if most people don’t lie most of the time. To universalize lying would destroy the possibility of being able to tell a lie. Kant differentiates imperative based and hypotheses and imperatives that are categorical or come from pure reason. Hypothetical imperatives and categorical imperatives. Kant says that all imperatives are based on hypotheses that are not properly moral. That is that no action that is based on hypothesis that a certain thing will come about if a action is done can be properly be called a moral action. Thus for example if I base my example that I base my hypothesese that my action will result in a certain pleasure or emotion than it isn’t properly moral. Morality is not a means end rational thing in this way. It can’t be. Hypothetical imperatives. Precisely because it is only a hypothesis, we do not KNOW with certainty that a certain action will bring about a certain consequence. Morality must be based on some certain principles and all means are based on hypothesis. We think or hypothesize that doing a certain action will give us pleasure or happyness. Utilitarians act on a hypothetical imperative and this is because utilitarians are trying to get good consequences. The problem with this theory, says Kant, is that you are trying to bring about something that you might not have the foggiest clue how to bring about. Morality by contrast, says Kant, can’t be based on knowledge that you might not have. We don’t know for sure how to bring about happiness. We think we know if we pass a policy that it will bring about more jobs to stimulate the economy but we don’t know that for sure. Morality can’t be an experiment. It must be based on a set of principles or as Kant calls it the categorical imperative. That action which is at the same time is able to be a universal law. Categorical imperatives are based on the certainty that only pure reason gives us. Only categorical imperatives can bring us true morality. This stuff about law is important. In his theory everyone is a legislature of moral law. We are all moral legislature. Remember that Kant does not think we can discover facts out there in nature or by meditating on the forms like Plato thinks. He actually disagrees with Plato and Aristotle and agrees with the Utilitarians on this point where as these ancient thinkers say we discover moral facts on the nature of the good. Kant argues that we construct moral law from a rightly working from pure rationality like they did in the intergalactic senate. As rational agents we have the ability to construct moral law. We do not discover moral law. It is not part of the world. We create moral law, based on the logic of pure reason. Literally make it. But just because it is subjectively constructed doesn’t mean morality can’t be objective. If moral principles are based on categorical imperatives from maxims then the constructive moral laws are the same time objective. He concedes that morality is intersubjectively objective. That’s the name of the game to create laws that are intersujectively subjective. Even though morality is constructed, it is still objective. This is because you can only legislate—or create—morality one way: the way given to you by pure reason.

A Two Port Network Biology Essay

A Two Port Network Biology Essay A  two-port network  a kind of  four-terminal network  or quadripole is an  electrical network  circuit or device with two pairs  of terminals to connect to external circuits. Two terminals constitute a  port  if the currents applied to them satisfy the essential requirement known as the  port condition: the  electric current entering one terminal must equal the current emerging from the other. The ports constitute interfaces where the network connects to other networks, the points where signals are applied or outputs are taken. In a two-port network, often port 1 is considered the input port and port 2 is considered the output port. The two-port network model is used in mathematical  circuit analysis techniques to isolate portions of larger circuits. A two-port network is regarded as a black box with its properties specified by a  matrix  of numbers. This allows the response of the network to signals applied to the ports to be calculated easily, without solving for all the internal voltages and currents in the network. It also allows similar circuits or devices to be compared easily. For example, transistors are often regarded as two-ports, characterized by their h-parameters (see below) which are listed by the manufacturer. Any  linear circuit  with four terminals can be regarded as a two-port network provided that it does not contain an independent source and satisfies the port conditions. Examples of circuits analysed as two-ports are  filters,  matching networks,  transmission lines, transformers, and  small-signal models  for transistors (such as the  hybrid-pi model). The analysis of passive two-port networks is an outgrowth of  reciprocity theorems  first derived by Lorentz. In two-port mathematical models, the network is described by a 2 by 2 square matrix of  complex numbers. The common models that are used are referred to as  z-parameters,  y-parameters,  h-parameters,  g-parameters, and  ABCD-parameters, each described individually below. These are all limited to linear networks since an underlying assumption of their derivation is that any given circuit condition is a linear superposition of various short-circuit and open circuit conditions. They are usually expressed in matrix notation, and they establish relations between the variables (Two-Port Networks. (n.d.). In  Wikipedia. Retrieved October 25, 20012, from http://en.wikipe dia.org/wiki/Two-port_network) The experiment is divided into two parts: Part 1 is focused on determining two-port network parameters (admittance and transmission parameters only). The process of measurement and calculations will be briefly illustrated in Theoretical Supplement part. We are aiming to investigate the relationships between the individual parameters and the parameters of two-port networks in cascade and parallel. Part 2 is focused on finding out the transient responses in two-port networks containing capacitive and inductive reactances. Theoretical Supplements: Measurement of Admittance (Y-) Parameters: The equations to determine the parameters are: I1 = y11V1 + y12V2 I2 = y21V1 + y22V2 i.e. [I] = [Y].[V] [Y] = y11 y12 y21 y22 where are the Y parameters of the two-port network. Experimentally these parameters can be determined by short circuiting the ports, one at a time. Hence these parameters are also termed as short-circuit admittance parameters. The following diagrams show the method to calculate the parameters: When output port is shorted (as shown in Figure 2 below): V2 = 0.1 Figure 2 y11 = I1 / V1 y21 = I2 / V1 When input port is shorted (as shown in Figure 3 below): V1 = 0 2 Figure3 y12 = I1 / V2 y22 = I2 / V2 Measurement of Transmission Parameters: The equations to determine the parameters are: V1 = AV2 BI2 I1 = CV2 DI2 Or3 Where [t] is the transmission parameters of the two-port network. Experimentally, the t-parameters can be obtained by short circuiting and open circuiting the output one at a time. The following procedure shows how to calculate the parameters: Output port is open-circuited: i.e. I2 = 0 4 Figure4 A = V1 / V2 C = I1 / V2 Output port is short-circuited: i.e. V2 = 0 1 Figure5 B = V1 / I2 D = I1 / I2 Cascade Interconnection of two 2-port Networks: Considering the 2 networks A and B which are connected in cascade, as shown in Figure 6 below. From this the transmission parameters of the combined cascaded network (N) is obtained. The method is demonstrated below. 5 Figure 6 [t]N = [t]A.[t]B 7 Hence, the following result is obtained. 8 Parallel Interconnection of two 2-Port Networks: Considering the two networks A and B which connected in parallel, as shown in Figure 7 below. The overall y-parameters of the combined network N can be obtained as follows: 6 Figure 7 I1 = I1A + I1B I2 = I2A + I2B V1 = V1A = V1B V2 = V2A = V2B; And H:DropboxCamera Uploads2012-10-25 05.41.34.jpg It can be seen that the overall Y-parameters can be obtained by summing the corresponding Y-parameters of individual networks A and B, when the A and B networks are not altered by the parallel connection. Transient Responses of Two-Port Networks: Damping Ratio  Ã‚ º is defined as the ratio of the actual resistance in damped harmonic motion to that necessary to produce critical damping. It is also known as relative damping ratio. We divide the transient responses into three types on the basis of damping ratio  Ã‚ º, Over damped response ( Ã‚ º > 1), Under damped response ( Ã‚ º Critically damped response ( Ã‚ º = 1). The various conditions stated above are described in detail below. Over damped Response: In this case the roots of the characteristic equation are real and distinct. The solution to the input signal is a decaying exponential function with no oscillations and the transient response will be over damped. The response to the input signal is slow and has no overshoots or undershoots. Under damped: The roots are complex in this case. The transient response will be under damped when  Ã‚ º Critically damped: When  Ã‚ º = 1, the roots are real and equal, and the transient response to the input signal will be critically damped. There will be no oscillations whatsoever. This case is a desirable outcome in many industries. In this experiment, we are mainly using the second type, which is the under damped response. And the characteristic equation is given by: S2 + 2 Ã‚ ºÃƒ Ã¢â‚¬ °nS + à Ã¢â‚¬ °n2 where à Ã¢â‚¬ °n = undamped natural frequency = 1/à ¢Ã‹â€ Ã… ¡( LC ) à Ã¢â‚¬ °n à ¢Ã‹â€ Ã… ¡ (1  Ã‚ º2 ) = damped natural frequency {A484D667-ABED-4193-B38C-40120C378004}  Ã‚ º = damping ratio = Further critical details have been illustrated in the Appendix B of Laboratory manual of Experiment L212. Objectives: To measure the admittance-parameters and transmission parameters of two-port network To investigate the relationships between individual network parameters and two-port networks in cascade and parallel connections To study the transient response of a two-port network containing capacitive and inductive reactances. Equipment: Digital Storage Oscilloscope Function Generator (50ÃŽÂ ©) Digital Multimeter Inductor with 2 inductance steps Capacitors: 22ÃŽÂ ¼F, 100ÃŽÂ ¼F Resistors: 33ÃŽÂ ©, 100ÃŽÂ © (2 numbers), 220ÃŽÂ ©, 330ÃŽÂ ©, 560ÃŽÂ ©, 680ÃŽÂ ©, 3.9kÃŽÂ ©, 4.7kÃŽÂ © (2 numbers), 5.6kÃŽÂ ©, 6.8kÃŽÂ © Bread-board Procedure: Measurement of Admittance-Parameters and Transmission Parameters and to investigate the relationships between individual network parameters and two port networks in cascade and parallel connections Setup A Connect the resistive network A as shown in Figure 8 below. With the network connected in the circuit, apply a sinusoidal voltage of 1 kHz, and amplitude 10 volts from peak to peak at: Port 1 with port 2 open-circuited Port 1 with port 2 short-circuited Port 2 with port 1 short-circuited In each case measure the voltage and current at the input and output terminals The input voltage is measured by observing the peak to peak value on the scope of the oscilloscope while the output voltage is measured with the digital meter. Tabulate the results in Table 1. (all the values measured should be in rms) Figure 8: The resistive network A{DA60CACE-9B44-4522-A111-F57AC9F95897} Setup B: Connect the resistive network as shown in the Figure 9 below. With the network connected in the circuit, apply an identical sinusoidal voltage as in Setup A at: Port 1 with port 2 open-circuited Port 1 with port 2 short-circuited Port 2 with port 1 short-circuited Measure the identical reading as in Setup A in the same way. Tabulate the results in the same Table 1.{0536D217-3D48-4F28-B37B-77F1CB823EEA} Figure 9: The Resistive Network B Cascaded Setup: Connect the networks A and B in cascade as shown in the Figure 10 below. Measure the identical parameters with the identical voltage and applying the voltage at the same positions as was done in the previous two setups A B. Tabulate the readings in Table 1 again.{32E83E0D-6633-4D97-A59B-4374AF22F541} Figure 10: The Cascaded Network of Networks A B Parallel Setup: Reconnect the individual networks A B in parallel as shown in Figure 12 below. Repeat the same procedures above with the same voltage as above to this network. Tabulate the readings in Table 1.{591F8FFC-7083-4E49-88AD-96E019FAD63C} Figure 12: The Parallel Network of Networks A B Table 1: (All values in rms) Results I2 = 0 V2 = 0 V1 = 0 I1 (mA) V1 (V) V2 (V) I1 (mA) I2 (mA) V1 (V) I1 (mA) I2 (mA) V2 (V) Network A (measured) 2.38 3.45 2.52 5.09 3.82 3.45 4.00 5.65 3.46 Network B (measured) 0.72 3.49 3.22 3.27 2.82 3.45 2.89 3.18 3.45 Cascaded (measured) 2.66 3.47 2.07 3.42 1.31 3.44 Parallel (measured) 13.28 11.59 3.46 10.34 12.55 3.46 Questions: The voltages V1 and V2 should not be connected to channel 1 and 2 of the scope simultaneously. Why? It can be observed from the circuit that both the ports V1 and V2 have different grounds. If V1 and V2 are connected simultaneously to channel 1 and 2 of oscilloscope respectively, then the ground terminals of V1 and V2 will be short-circuited as they are connected through the oscilloscope. This would change the circuits configuration and would give us the readings for a completely different circuit which would differ a great deal from the accurate values. What should you do to the readings of peak to peak voltage in order to make them compatible with the currents measured by the digital meter? The relationship between peak to peak values and its respective rms values is: peak to peak voltage = 2 x à ¢Ã‹â€ Ã… ¡2 x rms voltage The current measured by the digital meter is in root-mean-square value (rms). So it is mandatory to convert the peak to peak voltages to its rms value in order to be compatible with the currents measured by the digital meter. Hence the peak to peak value is divided by 2 x à ¢Ã‹â€ Ã… ¡2 to so that it is compatible with the currents measured by the digital meter. Compare the theoretical results with the measurement readings recorded in Table 1 for the interconnected two-port networks. Explain any of the differences in the two sets of results. Two kinds of parameters values are calculated and shown in Table 2 and Table 3. With this parameter values we can compare the difference in values of the measurement and theoretical readings. The parameter values in Table 2 shown below are defined as When the output-port is open, I2 = 0 Then: A = V1 /V2 C = I1/V2 When the output port is shorted, V2 = 0 Hence: B = V1/I2 D = I1/I2 And Cascade (theoretical) is obtained by [t]N = [t]A . [t]B Transmission parameters A B C D Network A (measured) 1.36 677.80 0.00094 1.33 Network B (measured) 1.08 1223.40 0.00022 1.16 Cascade (theoretical) (Network A * Network B) 1.62 2450.07 0.0013 2.69 Cascade (measured) 1.68 2625.95 0.00129 2.61 Percentage difference between cascade (measured) and (theoretical) 3.70% 6.69% 0.78% 3.07% Table 2 As it can be seen from the Table 2 above that there are slight differences between the theoretical and experimental results of the transmission parameters of the individual network and the interconnected two-port networks. The difference is observed due to the experimental human errors, tolerance levels of resistors in networks and slight deviation due to the slight inaccuracy of equipment. The parameter values in Table 3 shown below are defined as When the output port is shorted, V2 = 0. Then: y11 = I1 /V1 y21 = I2/V1 When the input port is shorted, V1= 0. Then: y12 = I1/V2 y22 = I2/V2 And Parallel (theoretical) is obtained by Network A values + Network B values Table 3: Admittance Parameters Admittance parameters y11 y12 y21 y22 Network A (measured) 0.00148 0.00156 0.00107 0.00163 Network B (measured) 0.00095 0.00084 0.00082 0.00092 Parallel (theoretical) (Network A + Network B) 0.00243 0.00240 0.00189 0.00255 Parallel (measured) 0.00384 0.00299 0.00335 0.00363 Percentage difference between Parallel (measured) and Parallel (theoretical) 36.72% 19.73% 43.58% 29.75% From Table 3, it can be observed that the difference between experimental and theoretical admittance parameters are quite large. The large difference is due to the same experimental errors and small tolerance of resistors or the existing voltage drop of the multimeter. Measurement of Transient Response of Two-Port Networks: {ECB52EDE-2A5E-423C-AE62-ECF870EBA09C} Figure 13 Connect the circuit as shown in the Figure 13 above with C = 22  Ã‚ ­F Using a storage scope and with the inductor setting at position 1, inject 10V peak to peak square wave at V1. Choose frequency f of the input voltage such that the square waves leading edge simulate a step input with the transient response completed before the next voltage change. The frequency f is chosen to be about 4 Hz. Record the output waveform V2 with the storage oscilloscope. Sketch the waveforms and when the waveforms have been captured, use the oscilloscope cursor to measure the oscillation period T and the voltages Va and Vb as shown in the Figure 14 below. The waveform is shown in Figure i) below. {71B3E9F8-C513-4F5A-9441-0C73C0A0C9B8} V1 Input Voltage V2 Output Voltage Tin Input signal period T Transient Oscillation Va / Vb Transient Oscillation Voltage Ratio Period Figure 14 Repeat the above procedure for the inductor setting at position 2. The waveform is shown as in Figure ii) below. Repeat the procedure for the two inductor settings with the capacitor changed to 100ÃŽÂ ¼F. The waveforms are show as Figure iii) and iv) below respectively. Add a resistor R2 of 33 ÃŽÂ © in series with inductor L as shown in Figure 15 below and select the inductor setting at position 1 with the capacitor = 100 ÃŽÂ ¼F. The waveform is shown as in Figure v) below. Repeat all the procedures with R2 values of 100 ÃŽÂ © and 220 ÃŽÂ ©. The waveform with R2 as 100 ÃŽÂ © is shown in Figure vi) below. All measurements are recorded in Table 4 below.H:DropboxCamera Uploads2012-10-25 06.12.32.jpg Figure 15 Figure a Figure b Figure c Figure d Figure e Figure f Figure g Condition C=22ÃŽÂ ¼F L = 1H C=22ÃŽÂ ¼F L = 200mH C=100ÃŽÂ ¼F L = 1H C=100ÃŽÂ ¼F L = 200mH C=100ÃŽÂ ¼F L = 1H and add R2=33ÃŽÂ © C=100ÃŽÂ ¼F L = 1H and add R2=100ÃŽÂ © C=100ÃŽÂ ¼F L = 1H and add R2=220ÃŽÂ © T(ms) 48.0 19.0 38.5 94.5 80.20 Period = 253.0 Άt1 =130.0 Άt2 =46.00 V2 =2.531 Va(v) 3.00 1.46 0.791 1.80 1.687 1.250 Vb(v) 0.633 0.700 0.408 0.516 0.3750 0.5000 Table 4 Waveform Figures: L:AAADS0001.BMP Figure i) L:AAADS0003.BMP Figure ii) L:AAADS0006.BMP Figure iii) Figure iv)L:AAADS0007.BMP L:AAADS0008.BMP Figure v) Figure vi) L:AAADS0009.BMP Questions: Why are square waves at a higher frequency not used as input? Square waves at higher frequencies are not used as input because frequency is related to time period by the relationship f = 1/T. So as the frequency is increased, the time period will become shorter and shorter. So it will take shorter time for the output power levels to stabilize after the input circuit stops drawing power. Hence the waveform obtained from the oscilloscope will not be clear enough for proper distinction. What causes the step input voltage to become an oscillating output voltage? The oscillating output voltage is caused due to the presence of the two reactive elements in the circuit, the inductor and the capacitor. The effect of charging and discharging of the capacitor and inductor causes the output to become an oscillating voltage. What are the effects of increasing the values of L and C? The undamped natural frequency à Ã¢â‚¬ °n equals to 1/à ¢Ã‹â€ Ã… ¡( LC ). If the values of L and C are increased, the undamped natural frequency will reduce simultaneously. Hence the oscillations will become more damped. Thus the number of output oscillations will reduce. Calculate the theoretical frequencies of oscillation and compare with the experimental results. The theoretical frequency is given by the relation ft = 1/ (2  Ã‚ ° à ¢Ã‹â€ Ã… ¡(LC)) Hz and the oscillation frequency is given by the relation f = 1/T. Using this relation we can tabulate the values. Figure a Figure b Figure c Figure d T(ms) 48.0 19.0 38.5 94.5 1/T(Hz) 20.83 52.63 25.97 10.58 ft (Hz) 33.93 75.87 35.59 15.92 Percentage difference 38.60% 30.63% 27.03% 33.54% The difference in the values is caused by the tolerance levels of the reactive elements used in the circuit i.e. the inductor and the capacitor. Consider the circuit shown in Figure 13. Obtain the expression for the damping ratio of the circuit.{A484D667-ABED-4193-B38C-40120C378004} Damping Ratio is given by the formula,  Ã‚ º = The natural undamped frequency is given by the relation à Ã¢â‚¬ °n = 1/à ¢Ã‹â€ Ã… ¡ (LC). Since R2 = 0, R1 = 330 à ¢Ã¢â‚¬Å¾Ã‚ ¦ and R3 = 100 à ¢Ã¢â‚¬Å¾Ã‚ ¦, deriving the damping ratio of the circuit as shown in Figure 13, the result is:  Ã‚ º = à ¢Ã‹â€ Ã… ¡(L/C)/860. Obtain the condition for the underdamped response in Figure 13. From the derived result obtained above,  Ã‚ º = à ¢Ã‹â€ Ã… ¡(L/C)/860. For an underdamped response, the damping ratio, ÃŽÂ ¾, should be less than 1, thus à ¢Ã‹â€ Ã… ¡(L/C)/860 What is the effect of adding resistance R2 in the LC circuit? {A484D667-ABED-4193-B38C-40120C378004} According to the formula of damping ratio  Ã‚ º = When R2 is added, the total value of  Ã‚ º increases. Depending on the value of R2,  Ã‚ º 1, even if the number of undershoots and overshoots is reduced, the response will be slower. Conclusion: The parameters of the two-port network, especially the Y-parameters and Transmission parameters (A, B, C, D) were determined experimentally. They can also be calculated theoretically. This experiment is aimed at comparing the differences between the experimental and theoretical values. The relationship between individual network parameters and two-port networks in cascade and parallel connections were also investigated. The results obtained for these were shown in the calculations in the Questions answered previously. Hence if every individual parameter of the networks can be determined, the parameter of the combined system can be determined. Part 2 was focused on studying the transient responses of the experiment. The responses to the change of values in the RLC circuit in the two-port networks were recorded. By varying the values of the capacitor, resistor and inductor, it was observed that increase in the capacitor and inductor values decrease the oscillating frequency and also reduce the number of undershoots and overshoots in the response signal. By adding a resistor in series with the inductor, it was observed that the resistor increases the damping ratio of the circuit but the effect is still dependent on the final damping ratio of the circuit,  Ã‚ º. To summarize the conclusion, all the objectives as stated earlier were met in course of the experiment and a lot of important observations came to light in the area of two-port networks.