A Brief Note On Achievement Motivation And Culture

2.1. ACHIEVEMENT MOTIVATION AND CULTURE Culture, according to E. B. Tyloe â€Å"is that complex whole which include knowledge, beliefs arts, moral, low, custom and othercapabilities acquired by man as a member of a society† quoted in (Nwachukwu C. B. 2000, P. 20). In a similar vein, the concept of culture is a huge one, separating human beings from their culture is impossible. Culture is deep rooted than obvious characteristic like gender, skin colour, race, and physical disabilities (Jashigin 1989, P.20). Wlodkoloki and Ginsberg, described culture as â€Å"the deeply learned confluence of language values beliefs and behavious that pervade every aspect of a person’s life, and ... is continually undergoing mirror changes† (Wlodkoroski Ginsberg, 1995, P.7). Because culture encompasses such a huge part of people, it plays a large and important role in the motivation of those same individuals. That culture and Achievement Motivation are related seems obvious â€Å"We know that culture, is the deeply learned mix of language, beliefs, values and behaviour that provides every aspect of our lives, significantly influences our motivation. In fact social scientists today regard the cognitive processes as inherently cultural. The language we use to think, the way we travel through our thoughts, and how we communicate cannot be separated from cultural practices and cultural context. If we keep culture in mind, a useful functional definition of Achievement Motivation is to understan d it as a naturalShow MoreRelatedResources: Ch. 7 8 of Discovering Psychology and Motivation and Emotion – Interactive Tutorial758 Words   |  4 PagesMaterial Motivation and Emotion Worksheet Resources: Ch. 7 8 of Discovering Psychology and Motivation and Emotion – Interactive Tutorial Discuss the following as a team and provide a brief summary of the each discussion. 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For example, it has to focus on student’s achievement, to make clear links between the curriculum and the student’s culture, and to respond the learning processes. Foreman (2014 ) adds that quality teaching is also related to providing a feedback that helps with the students’ self-regulation and scaffolds their learning. Moreover, itRead MoreResearch and Topic1860 Words   |  8 Pagesliterature review demonstrates THOROUGHNESS – you have looked at key scholars and studies, current and classic research, you have explored key aspects of the topic. skills: search, note taking, analysis, organization QUALITY RELIABILITY – articles are mostly from peer-reviewed journals, accuracy of citations. skills: search, note-taking, cross-checking , organization SYNTHESIS – you can connect research studies and ideas to each other and use them to elaborate and support your thesis. skills: analysisRead MoreCorporate Social Responsibility At Adam Smith s The Wealth Of Nations Essay1667 Words   |  7 Pagesestablishes that corporate social responsibility is important because it enhances the brand image, differentiation, and reputation of the business; increases stakeholder loyalty; decreases operating costs; and results in employee engagement and motivation. Brief Overview of Corporate Social Responsibility There is no universally acclaimed definition of what CSR is; rather its theoretical function is defined independently from entity to entity. However, according to Crowther Aras (2008), the conventionalRead MoreThe Factors Of Social Psychology1021 Words   |  5 Pagescomputer hacker under the alias â€Å"Neo†. The social principle that applies to Neo’s character of being a very informational influence. To give a brief summary, Neo is â€Å"awoken† from a simulation of what life is, to the cruel reality which is the exact opposite of everything he’s known. Neo experiences all the characteristics of being in an unusual environment and culture, which include but not limited to denial, acceptance, etc. The reason why influences plays a part is because Neo is motivated by the beliefRead MoreDelegation1252 Words   |  6 Pagesrefers to the management process of identifying the mission and the values of the organization and developing strategies for their i mplementation. It involves discovering and defining the purpose that brings the organization into being as well as the culture or character that defines how things are done. Planning involves the development of organizational strategies-the goals, objectives and actions of the organization. It determines the specific, attainable, measurable results that the organization wantsRead MoreOutline How an Organisation Motivates Its Employees2124 Words   |  9 Pages | | | | |Assignment title |Assignment 2; Human Resource Management Theories of Motivation and Reward Systems | |In this assessment you will have opportunities to provide evidence against the following criteria. | |IndicateRead MoreEssay about Exploring the Possibility of Merit Pay for Teachers1277 Words   |  6 Pagesrecommendations for the reauthorization of the No Child Left Behind Act of 2001 (NCLB) and his education plan include provisions to award merit pay to teachers in an attempt to obtain and retain effective teachers as measured by student academic achievement. These proposals are supported by budgeted funding for the 2011 fiscal year with additional funding included in the optional, competitive 1.35 billion Race to the Top Fund. A number of different merit pay systems exist. Some reward entire

Jacksonian Democracy Dbq Free Essays

Kathy Dai M. Galvin AP USH Period 1 Jacksonian Democracy DBQ The Jacksonian democracy of the 1820s-1830s is often associated with an expansion of the political influence, economic opportunities, and social equality available to â€Å"the common man,† a concept of the masses which President Andrew Jackson and his newly founded Democratic party came to represent. The new administration certainly saw gains for the majority; namely, public participation in government increased to unprecedented levels, and several economic decisions were made to favor the people over monopolies. We will write a custom essay sample on Jacksonian Democracy Dbq or any similar topic only for you Order Now Beginning with their exaggerated portrayal of the â€Å"corrupt† 1824 election however, the Jacksonian democrats also left a legacy of substantial miscalculations in policies and acts of hypocrisy that conflicted with their claimed intents to promote and protect popular democracy. In particular, the dangerous implications of various political and economic policies, along with the deliberate disregard of social inequality, are aspects of the Jacksonian age that most clearly demonstrate discrepancies between Jacksonian ideals and realities. The political field saw the first advances accredited to the Jacksonian democracy in the forms of extended suffrage and increased government participation, but it also involved many questionable federal acts that conflicted with the vision of political democracy. With Andrew Jackson’s election in 1828 introducing the first president from West of the Appalachians, the common men that Jackson championed naturally arose to the political stage as well. States all across the country adopted universal suffrage for white males on their own in the 1820s, but Jackson indeed bolstered the democratic trend through influence in newspapers, popular campaigning, and even a huge inauguration party at the White House open to the masses. In terms of campaigning however, the election of 1828 was the first in which the political parties directly attacked each other’s candidates through the press. The increase in voter participation led to a negative pattern of smear campaigning that aimed more to sway the masses than convey the truth that a healthy democracy needs. Furthermore, Jackson’s presidency was characterized by use of the spoils system and the systematic rotation of officeholders. These stipulated that federal jobs were strictly given to loyal Democrats and that federal offices could be held for only one term. While these practices were meant to emphasize equal political opportunities and build party loyalty, they inherently promoted government corruption. In fact, the power that Jackson wielded by trading federal positions for party loyalty both overextended his executive power and practiced the same corrupt bargaining of office that the Democrats accused John Quincy Adams of in the election of 1824. Thus, the Jacksonian democrats dealt clear detriments and hypocrisies to the system of popular democracy that they so strongly advocated, despite their encouragement of universal white male suffrage and participation in office. Similarly, the Jacksonian age affected the economy both in accordance with the Jacksonian ideal of equal economic opportunity and against it; an executive branch act and a judicial branch decision were made with the intent of favoring the people, but substantial opposition highlighted the negative side effects that undermined the Jacksonian goal. President Jackson represented the executive branch with his bold move of vetoing a bill which proposed a rechartering of the Second Bank of the United States. As conveyed by Jackson’s dramatic veto message on July 10, 1832 the democrats maintained that the national bank’s monopoly on trade catered too frequently to foreign and wealthy stockowners, thus posing a threat to the ideal of equal economic opportunity that they claimed to protect (B). The Jacksonians stuck with their vision of themselves in this sense, but opposing reactions to the veto pointed out that the attack on the bank was unnecessary and dangerous. Daniel Webster’s reply to the veto correctly asserted that by raising the alarm about an encroachment of economic freedoms, the Democrats were really harming the stability of the economy needlessly (C). Webster’s analysis was proven accurate by the Panic of 1837, during which a bubble of inflation caused by the end of the national bank was abruptly burst, and several years of depression followed. The recession and unemployment caused indirectly by Jackson’s cancelation of the national bank did more harm to public economic opportunities than good, despite the Jacksonians’ passionate belief in the threat that the Bank posed. Also in 1837 however, Chief Justice Roger Taney’s Supreme Court decision of Charles River Bridge v. Warren Bridge was a decisive victory for the Jacksonian ideal of equal economic opportunity. Taney interpreted a 1785 charter for a bridge on the Charles River loosely so that a new bridge could be erected across the same river, thus dispelling a monopoly and financially benefitting the people (H). The Jacksonians evidently believed in their roles as the protectors of economic equality, but the results of the changes their administration made were again varied in agreement with their ideals. Finally, the Jacksonians most clearly drifted from their claimed ideals in the social sphere, as they actively neglected to guard the individual liberties of minority groups and women. The Jacksonian’s rosy call for extended suffrage only applied to white males, and the issue of slavery was deliberately avoided to prevent unwanted conflicts between the states. In fact, the Jacksonian administration even put in place a â€Å"gag rule† in 1836 that allowed Congressmen to file away abolition petitions without discussion because the Acts and Resolutions of South Carolina threatened independent state action if SC did not receive national and sectional support in controlling its slaves (F). The slaves quickly lost any support from the proclaimed Jacksonian ideal of individual liberty when pitted against the preservation of the Union. Likewise, the administration did not hesitate to pass the Indian Removal Act of 1830, which revealed that grandiose Jacksonian ideals yielded to the American desire for new land as well. The Act forced thousands of Native Americans to resettle in the West, with no regard for their personal liberties either. Even President Jackson outright denied to protect the ideal when he refused to enforce the Supreme Court’s decision on Worcester v. Georgia in 1832; John Marshall had ruled that the Cherokee had a right to their land, but Jackson would not stop the army from pushing the Cherokee out of Georgia regardless. The only evidence of any agreement with the Jacksonians’ vision of guarding liberties is a romanticized painting of the Cherokee migration. The painted Cherokees appear comfortable, unified, and still dignified, implying that the painter must have either imagined this as the reality of the situation or painted an ideal version of the scene (G). The painting actually contrasts sharply with the chaos and tragedy of the Cherokees’ â€Å"trail of tears,† but it is important that the Jacksonian intent is present. Although the mixtures of realized and neglected Jacksonian ideals in the political and economic ields were more even, the Jacksonians’ goal to preserve individual liberty was not entirely lost in the social issues of the age. In conclusion, the Jacksonian democrats certainly believed in their roles as guardians of political democracy, equality of economic opportunity, and individual liberty, but their intentions were often misguided or secondary in the face of greater challenges. The few clear strides made by the Jacksonian age were interspersed with instances of failure in realizing its democratic ideals, particularly in the social sphere. How to cite Jacksonian Democracy Dbq, Essay examples

Foreign Aid free essay sample

Foreign aid is usually associated with official development assistance, which in turn is a subset of the official development finance, and normally targeted to the poorest countries (World Bank, 1998). Foreign aid represents an important source of finance in most countries in sub-Saharan Africa (SSA), where it supplements low savings, narrow export earnings and thin tax bases. In recent years the donor community has become more stringent about fiscal discipline and good policies, which has led to freezing of donor funds to governments that do not conform with aid conditionalities. The Kenyan government has experienced such aid cuts in the past. 1. 1 Definition The standard definition of foreign aid comes from the Development Assistance Committee (DAC) of the Organization for Economic Cooperation and Development (OECD), which defines foreign aid (or the equivalent term, foreign assistance) as financial flows, technical assistance, and commodities that are (1) designed to promote economic development and welfare as their main objective (thus excluding aid for military or other non-development purposes); and (2) are provided as either grants or subsidized loans.

Unleavened Bread of Jewish Culture free essay sample

| Unleavened bread of Jewish culture| | | Kelsey| 12/1/2009| | Kelsey Thomas Chef McKenzie 12-1-09 Unleavened Bread Of Jewish Culture In the Jewish culture, unleavened bread is usually eaten during Passover. The important of unleavened bread to Jewish people is how it represents Christ. In addition, it speaks of sanctification, in a way it also represents how a person is pure of no evil. The most common unleavened bread eaten on Passover is matzah. This bread is usually eaten with bitter herbs and sometimes with fruit. This bread can also be made with herbs in it, such as cilantro. The unleavened bread is baked without yeast for the Passover. This is by how to the Jewish culture believes that leaven symbolizes error or evil. Matzah at the Passover represents how Christ’s physical body would not experience the ravages of death. Unleavened breads have been around since ancient times, they started out of Egypt. We will write a custom essay sample on Unleavened Bread of Jewish Culture or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page When the Jewish slaves left Egypt, it is said that they ate unleavened bread by how they did not have time to let the bread rise before baking. To make Jewish style unleavened bread, you need a few ingredients. These ingredients are bread flour, water, sunflower oil, cilantro, and salt. There are no leveling agents; this is so the bread won’t rise. When kneading the dough, do so lightly then bake it off. Then take out of the oven and cut into triangles and bake for another few minutes. When it is done, the bread will be like crackers in texture. The Passover is usually takes place in March or April, and runs for seven days. During those seven days, there are the first and seventh day is spent as a meeting between man and Christ. A common tradition is to sprinkle leavened (yeast) bread crumbs throughout the house and then sweep them all up. After doing so they take them outside to burn them, by doing so they believe they are getting rid of the evil or error. Passover also commemorates the exodus of the Jewish slaves from Egypt during ancient times. By the Passover, Jewish people get to celebrate the freedom of their ancestors from Egyptian bondage. During the Passover, they also remember the last supper and what Christ said to his disciples. Christ told them the bread represented his body and to eat it in remembrance of him. The Jewish culture believes commemorating liberation from slavery has matzah as a primary symbol for the holiday. Thus, unleavened bread is a major symbol of freedom to the Jewish people and their past. Unleavened breads are also important to many other cultures, for different reasons. An example would be unleavened bread being used at communions. Therefore, many denominations use unleavened breads for several religious ceremonies. Several types of unleavened bread can be made, but it is always brittle flat bread. The bread is usually almost like a cracker and served with herbs, salsa. It can also be served with bitter herbs; these represent the bitterness of slavery in Egypt. Work Citied http://www. ehow. com/how_2127140_make-unleavened-bread-passover. html http://www. christcenteredmall. com/teachings/feast/unleavened-bread. htm http://www. jewishvoice. org/site/docserver/feast_of_passover_tend_cared. pdf? docID=1901

Biography of Leonhard Euler, Influential Mathematician

Biography of Leonhard Euler, Influential Mathematician Leonhard Euler (April 15, 1707–September 18, 1783) was a Swiss-born mathematician whose discoveries greatly influenced the fields of mathematics and physics. Perhaps the best-known of Eulers findings is the Euler identity, which shows the relationship between fundamental mathematical constants and is often called the most beautiful equation in mathematics. He also introduced a notation for writing mathematical functions that is widely used today. Fast Facts: Leonhard Euler Occupation: MathematicianKnown For: The Euler identity, the function notation, and numerous other discoveries in mathematicsBorn: April 15, 1707 in Basel, SwitzerlandDied: September 18, 1783 in St. Petersburg, RussiaEducation: University of BaselParents’ Names: Paulus Euler and Margaretha BruckerSpouses Name: Katharina Gsell Early Life Leonhard Euler was born in Basel, Switzerland. He was the first child of Protestant minister Paulus Euler and Margaretha Brucker. In 1708, one year after Euler was born, the family moved to Riehen, a suburb a few miles from Basel. Euler grew up in the parsonage at Riehen with his two younger sisters. During Eulers early childhood, he learned mathematics from his father, who had an interest in mathematics and had taken courses with the notable mathematician Jakob Bernoulli while studying to become a theologian. Around 1713, Euler began attending a Latin grammar school in Basel, but the school did not teach mathematics, so Euler took private lessons. University In 1720, Euler entered the University of Basel at just 13 years old- an accomplishment that was not uncommon for the time. At university, he studied with Johann Bernoulli, Jakob Bernoulli’s younger brother, who gave Euler mathematical problems to solve each week and encouraged him to read advanced math textbooks. Bernoulli even offered to answer Euler’s math questions every Sunday afternoon, even though he was too busy to give him private lessons. In 1723, Euler completed a master’s degree in philosophy and began studying theology, as his parents had wanted. However, Euler was not nearly as excited about theology as he was about mathematics. He obtained his father’s permission to study mathematics instead, possibly with the help of Bernoulli. Euler finished his studies at the University of Basel in 1726. In 1727, he submitted an entry for the Grand Prize of the Paris Academy of Sciences concerning the optimal placement of masts on a ship. The first prize winner was an expert in the mathematics of ships, but Euler, who had not seen a ship before, won second place. Academic Career Euler was offered an academic appointment at the Academy of Sciences in St. Petersburg, Russia. He moved there in 1727 and stayed until 1741. Although Euler’s post initially involved teaching the physics and math of physiology, he was soon appointed to the mathematics-physics division of the Academy. There, Euler advanced through different positions, becoming a professor of physics in 1730 and the senior chair in mathematics in 1733. The discoveries Euler made in St. Petersburg catapulted him to world fame. Euler married Katharina Gsell, a painter’s daughter, in 1733. Together, the couple had 13 children, five of whom survived to adulthood. In 1740, Euler was invited to Berlin by the Prussian king Frederick II to help establish an Academy of Sciences in the city. He moved to Berlin in 1741 and became the director of mathematics at the Academy in 1744. Euler remained prolific in Berlin, writing about 380 articles during his 25-year tenure. Contributions to Mathematics Some of Eulers most notable contributions include: The Euler identity: eiÏ€ 1 0. The Euler identity is often called the most beautiful equation in mathematics. This formula shows the relation between five mathematical constants: e, i, Ï€, 1, and 0. It has wide-ranging uses in mathematics and physics, including electronics.Mathematical function notation: f(x), where f stands for â€Å"function† and the variable of the function (here, x) is enclosed within the parentheses. This notation is widely used today. Later Life and Death By 1766, Eulers relations with Frederick II had soured, and he returned to the Academy of St. Petersburg upon invitation from Empress Catherine the Great. His eyesight was in decline, and by 1771, Euler was completely blind. Despite this obstacle, however, Euler continued his work. Ultimately, he produced half of his total research while completely blind with the help of scribes and his own impressive memory and mental calculation skills. On September 18, 1783, Euler died from a brain hemorrhage in St. Petersburg. After his death, the Academy at St. Petersburg continued publishing Euler’s prolific works for about 50 years. Legacy Euler made many important discoveries in the field of mathematics. While he is perhaps best known for the Euler identity, he was a prolific and accomplished mathematician whose contributions influenced graph theory, calculus, trigonometry, geometry, algebra, physics, music theory, and astronomy. Sources Cajori, Florian. A History of Mathematical Notations: Two Volumes Bound as One. Dover Publications, 1993.Gautschi, Walter. â€Å"Leonhard Euler: His Life, the Man, and His Works.† SIAM Review, vol. 50, no. 1, pp. 3-33.O’Connor, J. J., and Robertson, E. F. â€Å"Leonhard Euler.† University of St. Andrews, Scotland, 1998.Thiele, Ruediger. â€Å"The Mathematics and Science of Leonhard Euler (1707-1783).†

Analyze the Learner

Analyze the Learner Analyze the Learner General characteristics: I attend the HacÄ ± Ãâ€"mer Tarman Anatolian high school in class 11-FC. There are 27 students, 16 of them are boy the remains are girl. Although their learning abilities are nearly the same because they took the same exam before enter this school, they have some differences in their cognitive levels. So from time to time I have to use different methods to attract their attention. Student’s socioeconomic levels are different and this affects their achievement. Because students that have low economic status could not get private lessons. In addition that while giving research project I realized their economic conditions. Students are aware of the importance of lecture because they know the university entrance exam are very important for their future life so they do not miss any single hour. Entry competencies: In order to understand the whether the students have necessary prerequisites and knowledge I will make a pretest to un derstand these. For example before starting acid base concept students should know some concepts from 9th class. These can be * Matter * Nomenclature of compound * Chemical reactions and calculations * Mole concept * Solutions and molarity And also for achieving these concepts they ought to have these skills mentioned below. * Reading and writing skills * Problem solving skills * Analytical and critical thinking skills * Manipulating laboratory equipment skill * Problem solving skills Learning styles: Students have different multiple intelligences so during the lecture as a instructor I should use different methods in order to motivate the learners. So they can easily the topic. It can be seen that in secondary school students are bored if the teacher use traditional method. However if they use different methods such as demonstration, role play, cooperative learning, they can understand easily, because the concepts are taught in a different manner. In addition to that giving exampl es from daily lives also increase students attention .but most of the teacher us lecturing method to complete the curriculum on time. But according tro me understand the topic is more important to complete the topic. So I will use analogy to teach the complex topic in an easy way and also make a demonstration so that students can easily realize what is going on, because of this reason I will prepare a video that is related to the chemistry experiment. And I will give daily life examples so students realized that chemistry is related to our life therefore they are willing to my lecture. State Objectives: The topic is in the K-10 curriculum. There are some requirements for the instruction. These include the previous knowledge from 9th grade level. At the end of the lesson 10th grade students will be able to have the following objectives. Ø General objective : Students understand the definition of acid and bases o Behavioral objectives:  § To know the meaning of acids and bases à ‚ § Describe Arrhenius acid base definition  § Describe Bronsted acid base definition  § Describe Lewis acid base definition  § To know the differences between acid base definitions Ø General objective : Students predict the use of acid and bases in daily life

Othello Essay Example | Topics and Well Written Essays - 500 words - 11

Othello - Essay Example In addition, Iago is overly ambitious and power-hungry. He is willing to use deception, manipulation, and murder to gain what he thinks he deserves. He is a dangerously selfish man. As for Othello, he is a level-headed and virtuous person. Even when Iago says something about complaints against Othello, the latter does not respond aggressively. Othello is not malicious and aggressive, and instead, he thinks that his good record will prove his merits to all. Part B: Shakespeare described Othello as a "Moor."   Did he intend him to be Black?   Opinions differ, although he is usually assumed to be Black by critics and directors.   Interesting, he has only recently begun to be played routinely by Black actors; for centuries he was played by white men in blackface.   Ick--if you doubt me take a gander at Laurence Olivier doing it as recently as 1965:   http://shakespeare.berkeley.edu/index.php?option=com_g2bridge&view=gallery&Itemid=256&g2_view=core%3AShowItem&g2_itemId=15658&g2_imageViewsIndex=1 Comment.   Many of the characters comment about Othellos ethnic identity in all sorts of different ways over the course of the play.   Look at both the major and the minor characters.   What do they say?   What attitudes can you discern?   Answer: The major characters treat and say outright that Othello is a Moor. They have prejudice and discrimination against outsiders. They do not think that Othello deserves to be in a position of power and to have a white wife. As for the minor characters, not many believe in and respect Othello. He does not have many faithful followers, despite his goodness. Part C: Iago insidiously leads Othello from being a man completely in control of himself to one verging on insanity. How does he do that? Find the process in the language and structure of the play. Where and now is the process moved forward, stopped, stalled, redirected, and

Journal learning Essay Example | Topics and Well Written Essays - 500 words - 3

Journal learning - Essay Example When the human resource manager reorganized the work teams, he realized that the workers now formed more harmonious teams and only one conflict was experienced within that month. Conflict resolution has become an important topic in a wide range of literature. Lipsky, Seeber and Fincher (2003) point out that work place conflict is inevitable due to the unique nature of human beings. Jordan and Troth (2004) states that effective team formation is one of the strategies that is important in solving problems arising within the work. Emotional intelligence is essential in constructing teams that pursue the same goals within an organization. Friedman et al. (2000) supports this idea and suggest that conflict results from work stress in malfunctioning groups within an organization. In this organization, conflicts resulted to work stress, which led to more conflict among the employees. Maravelas (2005) agrees that resolving work conflicts will result to increased productivity within the work place. Organizations that successfully resolve conflicts as soon as they arise are more likely to perform optimally. From a critical perspective, conflict resolution is an engaging task that demands a lot of attention from the managers. Since harmony is fundamental in increasing productivity, the organization must prioritize it to prevent losses within their organization. Besides the efforts of the managers, the workers must be willing to co-work with the same objective as the management. Harmony between the management and the workers is crucial for resolving stress within the work place. Evidently, the following skills are crucial in resolving conflicts within the organization. Mastering conflict resolution skills is an important perspective for me an intern who intends to become an effective manager during my career. While I have developed my creativity, communication and team work skills during my academic life, there is evidence that I still have to

Prayer should be allowed in Public Schools Essay Example for Free

Prayer should be allowed in Public Schools Essay The issue regarding the constitutionality of mandatory school prayer in schools in hinged on the separation between the church and the state that has been decreed by the constitution. On one side, there are those who argue that prayer in public school classrooms should be declared unconstitutional because it involves â€Å"excessive entanglement,† which is prohibited under the doctrine of separation of church and state (Clark 35). The other view is based more on the argument that such act is permissible because even the Pledge of allegiance contains the phrase â€Å"under God. (Clark 35)† It is humbly submitted in this position paper, however, that the more correct view remains to be that prayer in classrooms should be tolerated as long as it is not mandatory. In arriving at a better understanding of this issue, it is first important to define the constitutional issue at hand. The phrase, â€Å"separation of Church and State†, is actually from a letter that was written by one of the founding fathers, Thomas Jefferson, to a group that called themselves the Danbury Baptists (Busher 13). In the letter, Thomas Jefferson wrote that, â€Å"I contemplate with sovereign reverence that act of the whole American people which declared that their legislature should make no law respecting an establishment of religion, or prohibiting the free exercise thereof, thus building a wall of separation between Church and State. † This was of course in reference to the First Amendment of the United States Constitution (Whitsitt 186). The basic precept of this doctrine is founded on a firm belief that religion and state should be separate. It covers a very wide spectrum, as mentioned in the previous sections of this discussion, ranging from the secularization or elimination of the church to theocracy wherein the state works in tandem with a religion in order to govern over the acts of people (Bradley 199) The problem is that while the church and state do maintain that there is indeed a necessity to abide by the doctrine of the separation of church and state there is no clear way of delineating the boundaries between the spheres of these two institutions (Bradley 199). There are still certain acts that require entanglement between the church and the state because of the duty of the government to cater to the welfare of its people who invariably belong to some form of religion, in most cases. One of these instances is when prayer is allowed in public school classrooms. To argue that prayer is unconstitutional would be to deny the people the right to their rich American history. The first settlers were Pilgrims and even the first thanksgiving meal, though not seemingly a prayer by conventional means, was actually an act of thanking the almighty God for all the blessings (Bradley 199). If prayer is to be considered as a religious affirmation that is offensive to the constitution then other forms such as the pledge of allegiance and the â€Å"In God We Trust† declaration on the dollar bill must also be struck down (Bradley 199). It cannot therefore be argued prayer in public school classrooms is a clear violation of the establishment clause when even the humble dollar bill has the sign â€Å"in God we trust† written on it. If it is to be argued that prayer is a violation of the establishment clause then so must the dollar bill be struck down as a violation (Bradley 199). Yet time and again the almighty dollar has prevailed. The reason for this is because such a declaration is not an endorsement of a single religion, which is exactly what the establishment clause prohibits, but rather it is a declaration by the American people of their belief in a superior being. This argument is not limited to a single God but to all Gods of whatever beliefs. The beauty of the American democracy is that it empowers instead of stifles. It encourages instead of denies. To argue that prayer should not be allowed is unpatriotic, it is un-American. A prayer is a sign of thanks for everything that has been given to everyone. A single word or phrase isolated and taken out of context does much to remove the original intent from it. Reciting a prayer in public school classrooms does not further the cause of any single religion. Instead, it serves to show the rest of the world the pride that Americans have for their great nation. It shows unity. It shows strength. It shows the American way. References: Clark, James R. (1965). Messages of the First Presidency. Brigham Young University, Department of Educational Leadership Foundations. Retrieved on 2007-1-30. Fighting the Establishment (Clause). Bradley, Jennifer, The American Prospect, September 1, 1996. Available at: http://www. prospect. org/print/V7/28/bradley-j. html Religion in the Public Schools: A Joint Statement of Current Law. The American Civil Liberties Union, 1996. Available at: http://aclu. org/issues/religion/relig7. html West Encyclopedia of American Law. West Group, 1998. Busher, Leonard (1614). Religious Peace: or, a Plea for Liberty of Conscience. Whitsitt, Dr. William (1896). A Question in Baptist History: Whether the Anabaptists in England Practiced Immersion Before the Year 1641?. C. T. Dearing, pp. 69-70.

What Is The Price Knowledge :: essays research papers

What Is the Price Knowledge I feel there is a definite need for knowledge in todays society, but there is also a definite point when it has gone too far. It has gone too far by conducting experiments on people without letting them know the consequences and side effects that will place upon them. It has also reached an extreme when the person becomes physically or mentally impaired after the experiments . I see this treatment as both immoral and unethical; there is no reason to harm a normally healthy person for some advancement in scientific knowledge . In doing research for this paper I have found many examples where humans were used as "guinea pigs" or killed. One example of this misconduct was in 1959 it was a common practice for drug companies to provide samples of experimental drugs, to physicians, who were then paid to gather data on their patients taking the drugs. Physicians throughout the country prescribed there drugs to patients without their knowledge or consent as part of this loosely controlled research. Example of this was the drug sedative thalidomide was given to vast number of pregant women and caused thousands of birth defects in newborn infants. Because of this event, the Kefauver - Harris amendmants to food, drug and cosmetic act were passed requiring informal consent be obtained in the testing of these drugs. Another rascality research project was doctors injected live cancer cells into underprivileged elderly patients without their permission. The research went forward without review by the hospital's research committee and over the objections of three physicians consulted, who argued that the proposed subjects were unfit of giving ample consent to participate. The revealing of the experiment served to make both officials and the Board of Regents of the University of the State of New York, aware of the shortcomings of procedures in place to protect human subjects. They were further concerned over the public's reaction to revealing of the research and the impact it would have on research generally and the institutions in particular. After a review the Board of Regents disapproved the researchers. They suspended the licenses of Dr.'s Mandel and Southam, but since delayed the suspension and placed the physicians on probation for one year. Another example took place during World War II. The new field of radiation science was at the center of one of the most ambitious and concealed research efforts the world has known Human radiation experiments. They were undertaken in secret to help understand radiation risks to workers engaged in the development of the atomic bomb. Following the war, the new Atomic Energy

How Pregnancy Impacted Her Life Health And Social Care Essay

After a brief debut, place one illustration of how gestation has impacted on this adult female and her household. You are expected to see either the sociological or psychological position of a normal version to gestation in this subdivision. The purpose of this essay is to analyze how gestation has impacted the life of a adult female and her household and the prenatal attention provided to the adult female during her gestation. The facets in the prenatal scrutiny being studied are the measuring of blood force per unit area and fundal tallness. These appraisals are both effectual in supervising the wellness and wellbeing of the female parent and the foetus and besides in observing when wellness and wellbeing are endangered ( Fontein 2009 ) . Sarah and John, the twosome in this survey, are in their late mid-twentiess and have been married for three old ages. Sarah is a gravida I, and 36 hebdomads into an un-planned gestation. The twosome are both professionals, Sarah holding worked as an air traffic accountant for the last 5 old ages and John running his ain belongings concern. All names have been changed to keep confidentiality and protect individuality, following with RCM guidelines that everyone has the right to confide ntiality. Before going pregnant, Sarah was in control of every facet of her life, including her work, her organic structure and how she spent her free clip. She has found this progressively hard as her gestation has progressed ; she is non merely confronting physical challenges but psychological 1s excessively, doing her to endure from many insecurities and anxiousnesss ( Forrest 2009 ) . Snow ( 2008 ) explains that there is a perceptual experience that maternity is an inevitable province that all adult females aspire to, nevertheless the intelligence of gestation can be accepted unconditionally or with many reserves ( Fontein 2009 ) . The twosome did non experience it was the right clip to get down a household, but did non see abortion or acceptance to be suited alternate, so made the determination to go on with the gestation. Sarah arrived at the 36 hebdomad prenatal assignment distressed, uncovering that it has become excessively hard for her to get by with the long hours and switch work that come with being an air traffic accountant, so she has had to take her pregnancy leave two hebdomads earlier than she hoped. Pregnancy is a clip of rapid and frequently unsought alterations in the organic structure ( Baston and Hall 2009 ) and Sarah is resentful of how these physical alterations have made working hard. Dunkley-Bent ( 2011 ) depict how it is frequently necessary to set working pattern for a pregnant adult female ‘s safety and comfort, but these alterations have caused Sarah to experience unequal and saddened over her lost professional individuality. Sarah worked difficult to accomplish her professional position and feels grieved that she has had to give up this place and enter domesticity, where her publicities and work accomplishments will hold small value ( Snow 2008 ) . Sarah ‘s overall loss of individuality has been one of the more hard passages for her to cover with during the gestation ; going a female parent requires a cardinal passage to a new individuality but there is struggle between this and a adult female ‘s old independency and life style ( Snow 2008 ) . In their personal life, Sarah and John have ever been active, traveling on skiing holidaies, cycling vacations and taking portion in athleticss such as jogging and spin categories. Due to her increasing size during gestation, a adult female may experience excessively tired, breathless and bulky to take portion in physical activity ( Paradice 2002 ) and Sarah has felt her size is restricting her exercising government. The rapid physical alterations that a adult female undergoes in gestation occur whether adult females want them to or non and some adult females can happen this alteration of physical individuality hard, go forthing her feeling vulnerable ( Spencer 2011 ) . Sarah has ever taken pride in her organic structure and like many adult females, her altering organic structure image has made her feel unattractive ( Fontein 2009 ) . Fontein ( 2009 ) depicts gestation as an event that turns a adult female into a female parent and a adult male into a male parent, so this alteration in individuality is non merely impacting Sarah, but besides John, as they are get downing to come in a new stage in their relationship. John feels that his friends are less inclusive of him and position him otherwise because of his pending function as a male parent. Often, if a twosome are the first among their friends to go pregnant, they may lose those friends as a consequence of come ining a phase in their life non understood by their equals ( Fontein 2009 ) . B ) Discuss one of the planned normal physical showing observations undertaken by the accoucheuse to measure the wellness of this adult female in the prenatal period. Describe the relevant implicit in normal anatomy and physiology and current grounds for this observation. During the prenatal assignment, a showing technique used to measure Sarah ‘s wellness is the measurement of her blood force per unit area, defined by Johnson and Taylor ( 2011 ) as the force applied on the blood vas walls by the blood. Blood force per unit area should be measured at every prenatal assignment to place any divergence from the norm ( National Collaborating Centre for Women ‘s and Children ‘s Health 2008 ) that may bespeak upsets such as preeclampsia. In a non-pregnant healthy grownup, blood force per unit area is around 120/80mmHg ; systolic force per unit area happening due to the left ventricle forcing blood into the aorta and diastolic force per unit area happening when the bosom is resting after complete cardiac diastole ( Waugh and Grant 2010 ) . During gestation, increasing degrees of Lipo-Lutin, relaxin and prostacyclin have a vasodilatory consequence on blood vas walls, diminishing peripheral vascular opposition and doing a little lessening in blood force per unit area ( Tucker Blackburn 2007 ) . Murray and Hassell ( 2009 ) suggest that by 24 hebdomads gestation the mean lessening Sarah would hold experienced is 5-10mmHg below her original systolic blood force per unit area and 10-15mmHg lessening in diastolic blood force per unit area. Vasodilation, caused by the lessening in peripheral vascular opposition, puts the organic structure in a province of hypovolaemia ( McNabb 2011 ) , which initiates a rise in shot volume, bosom rate and blood volume. This addition in blood volume is composed chiefly of a rise in plasma volume of up to 45-50 % , and secondly of ruddy cell mass, increasing by 20 % above non-pregnant values ; McNabb ( 2011 ) distinguishes between the clip frame of these alterations, with plasma volume increasing in the beginning of the first trimester and happening more quickly in the 2nd trimester, while ruddy cell mass enlargement begins in the 2nd trimester and reaches its extremum in the 3rd trimester. The addition in blood volume is thought to be tantamount to one liter ( Fraser and Cooper 2008 ) . Therefore from the center of gestation, Sarah ‘s blood force per unit area has bit by bit increased, and will return to pre-pregnancy degrees merely before term ( Johnson and Taylor 2011 ) . The equipment used by a accoucheuse to mensurate blood force per unit area includes a sphygmomanometer, a turnup and a stethoscope. Measuring blood force per unit area is done by exercising a mensural sum of force per unit area on an arteria utilizing an inflatable turnup, which occludes the blood flow, and when the force per unit area is released the stethoscope is used to hear Korotkoff sounds, which occur as blood begins to flux back through the arteria ( Johnson and Taylor 2011 ) . Anaeroid manometers are chiefly used as they are lightweight, compact and portable, even though they are non every bit accurate as quicksilver column manometers ; conversely, quicksilver is risky to wellness and no longer used ( Johnson and Taylor 2011 ) . Donaldson and Ness ( 2009 ) suggest that the ideal topographic point for the turnup to be placed is the upper arm, three to five centimeters above the point at which the brachial arteria can be palpated, puting the stethoscope on this point. Inside t he turnup is an inelastic fabric that contains a vesica which should encircle 80 % of the adult female ‘s arm ( Edmunds et. al 2011 ) . It is when the vesica is inflated to a higher force per unit area than the arteria that the turnup occludes blood flow, doing it to discontinue ( Nicol et. al 2008 ) . As the turnup is deflated the five stages of the Korotfkoff sounds can be heard, get downing with weak tapping sounds that addition with strength ( Korotkoff stage I ) , bespeaking systolic force per unit area, and stoping with silence ( Korotkoff stage V ) , bespeaking diastolic force per unit area. In some grownups, particularly during gestation, ‘Korotkoff stage V ‘ may be absent ; Johnson and Taylor ( 2011 ) suggest that in these fortunes ‘Korotkoff stage IV ‘ , muffled sounds which become softer, should be used to bespeak diastolic force per unit area and it should be documented that stage IV was used. Techniques and differences in measuring will act upon the result of the blood force per unit area reading, so it is hence of import to be consistent and methodical when measuring blood force per unit area, doing the observation an accurate appraisal of perinatal wellness ( Blackburn 2007 ) . Sarah was encouraged to empty her vesica, allowed to rest for five proceedingss, assisted into a sitting place and asked to take compressing vesture on her upper arm as all these factors can bring forth a falsely high reading ( Johnson and Taylor 2011 ) . Huston and Millar ( 2009 ) stress the importance of choosing the right turnup size, as a turnup that is excessively big will bespeak a falsely low reading, while a turnup that is excessively little will give a falsely high reading. The adult female should non hold had nutrient, intoxicant, caffeine, a coffin nail or exercising within the last 30 proceedingss as this will besides impact the blood force per unit area measuring ( Nicol et. al 2008 ) . Sarah was besides seated in a relaxed and quiet environment ( National Institute of Health and Clinical Excellence 2011 ) with her arm outstretched and supported ; an unsupported arm can increase diastolic force per unit area by up to 10 % ( O'Brien et. Al 2003 cited in Edmunds et. al 2011 ) . Sarah had antecedently had her blood force per unit area measured at old prenatal assignments, but when testing for the first clip the procedure should be explained and discussed with the adult female, doing certain that informed consent is gained at every measuring ( Nursing and Midwifery Council 2012 ) . The recommended process harmonizing to Walker ( 2011 ) , Edmunds et. Al ( 2011 ) and NICE ( 2011 ) advises that on the initial contact with the adult female, blood force per unit area should be done on both the left and right arm, entering the higher of the blood force per unit area readings. It is besides recommended that before the stethoscope is used to hear the Korotkoff sounds, the pulsation in the brachial arteria should be palpated, blow uping the turnup and feeling for when the pulsation is no longer tangible ; this value should so be the estimation of the systolic reading ( Quayle 2008, Nicol et. al 2008 ) and when mensurating blood force per unit area the turnup should be inflated to 30mmHg above this estimation to forestall unneeded uncomfortableness ( Nice 2011 ) . However, this is non ever what is practiced when blood force per unit area has been measured antecedently, as a old measuring is frequently used by the accoucheuse as an estimation. Sarah ‘s blood force per unit area was in the normal scope and consistent with her old measurings so although the symptoms of preeclampsia were discussed, i.e. frontal concerns and hydrops, there was no concern or necessitate for farther probe. degree Celsius ) Midwives assess and screen foetal well-being by mensurating uterine growing. Describe the relevant implicit in normal anatomy and physiology. Then discuss an observation that the accoucheuse undertakes to measure fetal/uterine growing guaranting that you apply current grounds and see its effectivity as a tool. Symphisis fundal height measuring is an abdominal scrutiny used to test and measure foetal growing and size, assisting to observe when there is a divergence from the normal patterned advance of growing ( Johnson and Taylor 2011 ) . It is the most common method used to measure foetal growing and as the fundus moves in a cephalic way the findings can be plotted against a standard curve, bespeaking the general form foetal growing ( Stables 2005 ) . Before gestation, the womb has a volume of and weight of about 50 gms ( McNabb 2010 ) and is located in the pelvic pit, anterverted and anteflexed, in a superior place to the vesica ( Coad and Dunstall 2011 ) . Tucker Blackburn ( 2007 ) explains that enlargement of the uterus Begins instantly after nidation of the fertilized ovum, overall increasing in length, weight, deepness, breadth, volume and capacity and this causes it to lose its anteverted and anteflexed construction ; it becomes vertical before being rotated to the right due to force per unit area of the colon ( Coad and Dunstall 2011 ) . Growth is stimulated by Lipo-Lutin, human chorionic gonadotropin, oestrogen, Pitocin and dilatation caused by the placenta, amnionic fluid and turning foetus ( McNabb 2010 ) . By 12 hebdomads, the uterine pit is filled by the foetus, leting the fundus to be palpated at the pelvic lip ( Coad and Dunstall 2011 ) . During the 2nd trimester, the uterus becomes ovoid as its length increases more than it width ; the spherical form of the fundus going more dome form as it is distended in a cephalic way ( Tucker Blackburn 2007 ) so by 16 hebdomads, the fundus is about midway to the navel ( Bharj and Henshaw 2011 ) . This growing causes the womb to travel into the abdominal pit so by 20 hebdomads gestation the tallness of the uterine fundus can be felt at the maternal navel and by the 3rd trimester, the womb reaches about to the liver ( Tucker Blackburn 2007 ) . By 36 hebdomads, the weight of the womb has increased to 1100 gms with an mean volume of 5 liters ( McNabb 2010 ) and the fundus can be felt at the maternal xiphisternum ( Bharj and Henshaw 2011 ) . Coad and Dunstall ( 2011 ) explain that throughout this expanision of the womb the uterine musculus undergoes hyperplasia and hypertrophy, and the uterine wall additions in thickness to 10 to 25mm. This so thins to 5 to 10mm by term gestation due to distention, leting for easier tactual exploration of the foetal place, incr eased visibleness of motions and more accurate symphisis fundal tallness measuring ( Tucker Blackburn 2007 ) . Harmonizing to the National Collaborating Centre for Women ‘s and Children ‘s Health ( 2008 ) measuring should happen at every everyday prenatal assignment between 25 and 36 hebdomads, as any clip before this the information is non accurate and hence has no clinical value. As Sarah is within this bracket of gestation, this appraisal was offered to her and her consent was gained to mensurate and feel her venters. To fix a adult female for any abdominal scrutiny, including mensurating the symphisis fundal tallness, an account should be given before, during, and after the process, guaranting that informed consent is gained before get downing the scrutiny ( Johnson and Taylor 2011 ) and that findings are discussed throughout the scrutiny ( Viccars 2009 ) . Care should be taken to guarantee the adult female is comfy, with her weaponries by her side to let relaxation of the abdominal musculuss ( Fraser and Cooper ) and that she non in a to the full supine place, particularly in ulterior gestation, to avoid aortocaval occlusion ( Johnson and Taylor 2011 ) . A survey undertaken by Engstrom et. Al ( 1993 cited by Viccars 2009 ) compared the different places that abdominal tactual exploration can be achieved in, such as supine, bole lift and articulatio genus flexure, and came to the decision that there were important differences between each place when mensurating fundal tallness. In reponse to this, Viccars ( 2009 ) recommends that it is of import to do certain the adult female is systematically in the same place at each prenatal cheque. Sarah was encouraged to empty her vesica, as a full vesica can do the scrutiny uncomfortable and besides can change the tallness of the fundus, hence impacting the truth of the measuring ( Johnson and Taylor 2011 ) . It was besides ensured that Sarah ‘s self-respect was maintained, as the old organic structure image issues described may do embarrassment and malaise when exposing her venters. This is the instance for m any other adult females, particularly if they have old cicatrixs, suffer from striae gravidarum, or have ocular harm from domestic force ( Johnson and Taylor 2011 ) . Fraser and Cooper ( 2008 ) suggest that merely the portion of the venters that is being palpated should be exposed and the balance should be covered for privateness. The effectivity of utilizing symphisis fundal height measuring as a tool to place divergence from the norm depends on the consistence of the method used by the practician and besides on the uterine environment ( Viccars 2009 ) . If the practician undertakes the measuring the same manner each clip so this should increase sensitiveness and specificity, cut downing false positives and false negatives. However, due to uncertainness of where to take the measuring from, differences in methods between testers and differences in maternal place, the usage of symphisis fundal tallness to mensurate foetal growing has been criticised as being inaccurate ( Baston and Hall 2009 ) . Johnson and Taylor ( 2011 ) emphasizes that when measured systematically, a fundal tallness inconsistent with gestation normally identifies if a foetus is smaller or larger than expected, but can besides acknowledge complications such as inaccurate day of the months, polyhydramnios, oligohydramnios, multiple gestation, uterine mass e.g. cyst or tumor, and intrauterine decease. Differences in the adult female ‘s organic structure and uterine environment are beyond the practician ‘s control so may non needfully let an accurate measuring as possible. False positives or negatives may happen if the adult female is corpulent, thin, taller than norm, shorter than norm or has excessively much or excessively small abdominal musculus tone ( Stables 2005 ) . Abnormal prevarication of the foetus such as transverse, rear of barrel, oblique and occipito-posterior can besides do a fundal tallness inconsistent with gestation and hence non bespeaking the right growing when utilizing fundal height as a showing tool ( Johnson and Taylor 2011 ) . The symphisis fundal tallness measurings can be plotted on a symphisis fundal height chart, which represents the mean findings for gestational age and indicates what turning pattern the foetus is following ( Nice 2008 ) . When utilizing the measuring alongside th is chart, a survey conducted by Gardosi and Francis ( 1999 cited by Baston and Hall 2009 ) found that there was an addition in the sensing of both little and big babes for their gestational age. The fundus of Sarah ‘s womb is located utilizing a manus on her venters, puting it merely below the maternal xiphisternum and traveling gently downwards, until the fundus is felt, indicated by a alteration in soundness of the venters ( Viccars 2009 ) . Harmonizing to Johnson and Taylor ( 2011 ) , 0cm on the disposable tape step should be placed on the upper boundary line of the symphisis pubic bone, whereas Baston and Hall ( 2009 ) suggest that the measuring should get down from the fundus. The tape step was placed along the midplane of Sarah ‘s venters, between the fundus and the symphisis pubic bone, held swimmingly and firmly. Johnson and Taylor ( 2011 ) advise that the centimetre side of the tape step is placed downwards, as the measuring could go colored if the tallness is altered to nearer the existent gestation of the adult female, instead than being a true measuring. The fundal tallness in centimeters approximately equates to the hebdomad of gestation, with a bord er of mistake of plus or minus 2cm ( Johnson and Taylor 2011 ) . At 36 hebdomads in a gravida I the caput may be engaged, doing the fundus to be somewhat lower and step at about the degree of a 34 hebdomad gestation ( Bharj and Henshaw 2011 ) . This was the instance when mensurating Sarah, and she confirmed that she has experienced ‘lightening ‘ ; Tiran ( 2012 ) explains that this is occurs when the foetal caput enters the pelvic lip and is accompanied by decreased force per unit area under the stop. In decision,

Health and Safety Essay

Explain how health and safety is monitored and maintained and how people in the work setting are made aware of risks and hazards and encouraged to work safely. In my placement we have a safeguarding policy but we don’t have a health and safety polices that I am aware of but the safeguarding polices is available on the schools website. Anyone is able to get on to the website and their policies. We have a sigh by the sink in the staff room say warning hot water and we have a sigh in the classrooms letting children and staff knows that the water in the tabs is drinking water we also have fire safety sign around the school. They always have meeting every month on health and safety but it is only for the main teachers. We have a fire drill twice a year so all the children and staff know where to go in case of a fire they had a fire drill last week which was good cause I did not know where to go if a fire happens so it help me cause now I know where to go if a fire happens. We always tell the children not talk to strangers and when the children are going home they are not allowed to leave an till the adults tell them that they can go cause we need to make sure that the right people are picking the children up and that they are not going off with strangers or with someone they are not meant to go home with.

Micro Unknown Lab Report Essay Example

Micro Unknown Lab Report Essay Example Micro Unknown Lab Report Paper Micro Unknown Lab Report Paper The rationale of performing these tests was to distinguish six different microbes room one another and to compare how their metabolic and biochemical processes differ from species to species to determine the unknown sample. The tests included: Triple sugar iron agar (TSAR), the Sulfide Indolent Mobility (SIMI) test, Glucose fermentation, the Methyl Red test, the Vogues-Prosperous test, Citrate test, the Areas Test, and finally the Gelatin test. The microbes that were tested during this lab were: Escherichia coli, Entertainer arrogates, Kielbasa pneumonia, Protest miracles, Pseudopodia organisms, and Salmonella typographic. The sample labeled #11 could have been any of the six microbes. A gram stain was performed to assess the shape and other characteristics of the bacteria, and to ensure that there was no gram positive contamination. Gram positive cells have a thick outer pedagogical layer that traps the crystal violet-iodine complex more than gram negative cells. As a result, they are less vulnerable to the De-colonization step with alcohol making them appear purple in color, while the gram bacteria negative appear pink. Triple sugar iron agar slant tests for multiple things: sugar fermentation of glucose, lactose, and sucrose, and the production carbon dioxide and hydrogen sulfide. The gases are easy to identify. If any carbon dioxide is produced cracks or bubbles appear inside of the medium, and sometimes enough CO is produced to push the slant up towards the top, this will be reported as +g. The HAS is identified by how the gas reacts with an iron compound and makes the agar turn black. There are two possible types of sugar reactions that take place in the areas of the butt and the slant of the medium. The outcome of sugar metabolism will be acid production, so the pH indicator phenol red will turn yellow, and be reported as A. If there is no sugar diabolism, or alkaline by-products are made, will cause the indicator to stay the same color red, and reported as a K. THIS medium is prepared as a shallow agar with a deep butt, providing for both an aerobic and anaerobic environment. A THIS medium must be checked within about 12 hours to see if it ferments glucose, and again after 24 hours to see if it ferments lactose and sucrose. If the slant returns to being red and the butt is still yellow after this time period, the organism ferments glucose but not the other sugars. If it is completely yellow after the time interval, this indicates that the organism ferments all here sugars. SIMI Medium is used as differential test of microorganisms on the basis of hydrogen sulfide production, indolent production, and motility. The Sulfur reduction test is useful in differentiating enteric organisms, the Indolent test is used for differentiating the Interchangeable, and the Motility test is useful for testing a wide variety of organisms (condonable. Com). Casein is rich in thyrotrophic which is reduced and produces indolent by the enzyme transparency. Ferric ammonium sulfate is the indicator for HAS production. Once the medium was done incubating Kvass reagent was added to the tube. If the sample was positive the reagent would have a color change to red, if the reagent remained clear, a negative result was reported. Glucose fermentation uses Phenol Red Broth as differential test medium typically used to differentiate based on the color change of the pH indicator. Phenol red turns yellow below a pH of 6. 8, pink above a pH of 7. 4, and remains red in between. A Durham tube is used to collect any gas that may be produced, and is reported as (+g) if a bubble appears on the inside and (-) if the organism cannot ferment the glucose and no bubble is trapped inside the tube. If the broth turns yellow, it means that acid was produced and reported as A. If the organism can break down the amino acids be De-animation and ammonia is produced, this will raise the pH level turning it pink. This alkaline result was reported as K. The Methyl Red test is a differential test for bacterial respiration used to differentiate strains of chloroform bacteria capable of performing mixed acid fermentation that will lower the pH despite the phosphate buffer (http://faculty. Deanna. FDA. Due). Mixed acid fermentation is confirmed by using methyl red as an indicator. It is red ant pH 4. And below, allow at pH 6. 2 and above, and orange in between. Red is a positive result reported as (+), yellow is a negative result reported as and orange is negative or inconclusive. The Vogues-Prosperous test to detect organisms that are able to ferment glucose, but convert the products to action and 2,3-butadiene. This is deduced by the addition of Reagent A and Reagent B, and the observation of the color change thereafter. Reagent A is a solution of -naphtha and alc ohol. Reagent A catalysts the conversion of action to dedicate. Dedicate teens react with guanidine-containing compounds from the potent to form a red color in he presence of -naphtha. Reagent B is a solution of potassium hydroxide and water. It absorbs CO in the medium and acts as an oxidation agent, cataloging the reaction that converts action to dedicate (Dalton. Com). After the UP reagents have been added, a red color is observed, this is a positive result reported as if a copper color develops, the result is negative and reported as Citrate test uses Simmons citrate agar to see if the organism is able to utilize citrate as a carbon source. Only bacteria that possess the enzyme citrate-permeate can transport citrate inside the cell so it can be converted into private. Simmons citrate agar utilizes sodium citrate as its only carbon source and ammonium phosphate as the nitrogen source. The pH indicator biorhythms blue dye is green at a pH of 6. 9 and blue at pH of 7. 6. Bacteria that can survive on the agar and utilize the citrate, alkaline the agar by breaking down the ammonium phosphate to ammonia and ammonium hydroxide, both increase the PH. Any change to a blue color is a positive result reported as (+), and if there is no change and the agar remains green the result is negative and reported as (-). The Urea hydrolysis is catcalled by the enzyme areas. Areas catalysts the hydrolysis of urea into carbon dioxide and ammonia using water. A urea broth is used that contains yeast extract as its only nutrient source, buffers to inhibit localization of the medium, and phenol red as a pH indicator. Phenol red in this solution will be yellow or orange bellow pH 8. And pink above, to show any increase in PH. A pink color in the both indicates a positive result and reported as and an orange or yellow appearance the result is negative and reported as G). The Gelatin test is used to see if the microbe produces the enzyme gelatins. Gelatin is a protein made from collagen, made from animal connective tissue. Gelatins is an extracurricular proteolysis enzyme that aids in the breakdown of protein into amino acids (Harsh 244). Gelatin is used as the medium, which can liquid at room temperature but solidifies at about ICC. Since the gelatins enzyme can be quite slow, an incubation time o one week is needed. A positive test result will be reported if the sample remains a liquid after it is placed in the cold room, and a negative result will be reported if it re-solidifies. Experimental Proceed rest: The tests performed provided key information about the unknown bacteria and how it carries out its metabolic functions. The visualization of bacteria at the microscopic level is made possible by the use of various stains, which react with elements present in some cells but not others. The Gram stain was utilized in this procedure in four essential steps: apply the primary stain crystal violet, fix with iodine, decolonize with 95% ethyl alcohol to wash out the crystal violet-iodine complex, and the counter-stain Safaris was added. THIS medium was inoculated using an inoculating needle by stabbing the agar through the butt, and then the addle was pulled out and a streak was made up the slant. The THIS medium was incubated at ICC and checked after 18 and 24 hours for a change in color. ITS contains the three carbohydrates glucose, sucrose, and lactose. The medium also contains animal and yeast extract, and peptides as the sources of nitrogen, vitamins and minerals, and ferrous ammonium sulfate as the indicator for HAS. Phenol red is the pH indicator. (macromolecular. Org) The SIMI medium contains casein digest and animal digest to provide peptides to provide nutrients, vitamins, and minerals that are essential for growth. The SIMI medium was inoculated by stabbing the medium with an inoculating needle, and incubated at ICC for 24 to 48 hours. Once the medium was done incubating Kvass reagent was added to the tube to check for indolent production. Phenol Red Broth, used for glucose fermentation, contains potent, phenol red (a pH indicator), a Durham tube, and glucose. The broth is inoculated with the inoculating loop, and incubated at ICC for 48 hours. The Methyl Red broth contains potent, glucose, and a phosphate buffer. The broth is inoculated with the inoculating loop, and incubated at ICC for 48 hours. Once the sample is done incubating, a 1. 0 ml aliquot is taken and three drops of the Methyl red indicator is added. The results of a red color can be observed immediately if it is positive, otherwise it is a negative result. The Vogues-Prosperous broth contains potent, glucose, and a phosphate buffer just as in the MR.. Broth. The broth is inoculated with the inoculating loop, and incubated at ICC for 48 hours. Once the sample is done incubating, a 1. 0 ml aliquot is taken and 15 drops of Reagent A is added along with 5 drops of Reagent B. The result is monitored at ten minute intervals for 1 hour. The results of a red color can be observed if it is positive, otherwise it is a negative result if there is no color change. The Citrate test was lightly inoculated using an inoculating needle by streaking the slants with the unknown, incubated at ICC for 48 hours, and read for a color change. The Urea hydrolysis uses Rusticating and Stuart broth that contains yeast extract, monobasic potassium phosphate, adiabatic potassium phosphate, urea, and phenol red. The broth was heavily inoculated with the inoculating loop and incubated at ICC for 24 hours. The Gelatin test uses gelatin agar that also contains beef extract and potent. The medium is stab inoculated with an inoculating needle and incubated at ICC for up to 7 days. The sample is then placed in the cold room to check for re- solidification. Results: The gram stain procedure showed to be all gram negative pink, straight rods. They had no particular arrangement or clustering. TSAR SIMI test Glucose fermentation The Methyl Red test The Vogues-Prosperous test Citrate test The Areas Test Gelatin test Conclusion: Entertainer arrogates Material Methods Gram negative cells have a thinner pedagogical layer and a lipid membrane external to the cell wall

Current event on macroeconomics Article Example | Topics and Well Written Essays - 500 words

Current event on macroeconomics - Article Example The article indicates that in 2013, North Carolina was the only state in US where the jobless were not provided with the extended benefits yet the state registered had one on the largest improvements in market performance as well as economic growth (John 16). US Bureau of Labor indicated that in the second half of 2013, the payroll jobs in North Carolina rose by 1.5% compared with 0.8% rise in jobs opportunities nationally. Similarly, the unemployment rate in the state dropped by 17% while the nationally it dropped by 12%. Despite the dropping labor force in North Carolina in 2013, it started to rise again in the first quarter of 2014. This article indicates that from June 2013 up to June 2014, North Carolina employment population ratio increased three times more than that of national average. Thus, it is an indication that by ending the extended benefits program, it led to job creation as well as job acceptance. Notable macroeconomic concepts that are covered by the article include unemployment and extended benefits programs. Extended benefits entail the payments that are available to employees who have exhausted regular employment insurance benefits. During the periods of high unemployment, the states provides weeks of benefits, a vital economic strategy that aims increasing the consumers purchasing power as well as the aggregate demand. After passing the American Taxpayer Relief Act of 2012 and the signing by the President, the deadlines for the Emergency Unemployment Compensation were extended to December 2013. However, the act did not affect the number of weeks of benefits available under the Emergency Unemployment Compensation. According to the Department of labor, the federal government budgets reduction referred to as sequestration may affect the resident’s unemployment insurance benefits in the week ending October 6th. The government has directed the Department of labor to re duce by 7.2% the payments of individuals who are receiving the

Planning Disciplinary Interview Essay Example | Topics and Well Written Essays - 750 words

Planning Disciplinary Interview - Essay Example At any rate, this is a disciplinary issue and must be handled as such to ensure that it does not recur. The company holds a good record in its treatment to employees and there are regular training sessions held to keep the employees abreast the latest technical, procedural and fundamental issues. Nonetheless, the disciplinary procedure is a lengthy process and is dependant on the employee's response. If the employee's response is satisfactory, the matter will be resolved verbally and there may not be any adverse comment on his record that may reflect on his behavior in the times ahead. If his response is not satisfactory, it will become necessary to find solution that will depend on the nature of his response and if it favors the employee (Employee Discipline Policy, 2006). At the time of interview, the employee will undoubtedly be accompanied by one of the union members. The atmosphere will be relaxed but inquisitive. The interview will take place in the Human Resource Department office premises. As an officer in the HR Department, I will occupy the main chair with the table in between and John and the union member facing me. My colleague, Martin, will be seated besides me. It may be that John was in not in proper frame of mind. ... The interview will begin more or less on the following lines: "Hello John, have a seat. What is the problem" If he feigns ignorance, I will spell out the problem and say. "I have come to know you have been rude to Norman. If so, what is your reason for your behavior" It may be that John was in not in proper frame of mind. If he confesses this and expresses an apology, I will call Norman and have John express the apology to Norman and end the matter here over a cup of tea. At the same time, I will express the hope that John will take care not to repeat such behavior in future. Then for all practical purpose, the matter will end here. However, in case John does not express an apology and is firm on the argument that Norman got what he deserved there is a breakdown in communication and this will place John in an awkward position. The company's D@W is also violated and it will be necessary to give it to John in writing about his unbecoming behavior and the company's intolerance to such behavior (Colter, Carolee; Nov-Dec 1991). The company is aware John has a good employment record. The company is also aware John is an emotional person and is prone to react emotionally without realizing the consequences. The interview will make it quite clear that while the company will stand by John in his emotional weakness it will also expect improvement in John's actions in future. Consequently, the company will not fire John. John's work record is favorable. Hence, he has not committed any offence that requires his dismissal. Nonetheless, he has breached the company's D@W policy and John will be taken to task on this issue. It may consist of making a note to this effect on his record

Business Organasation Essay Example | Topics and Well Written Essays - 1250 words

Business Organasation - Essay Example The creation of an LLP’ requires the minimum of a general partner and a limited partner. The duties, rights and obligations of these members are similar in status to those of the partners in a general partnership. Because of the limited amount of contribution exposed to the risks of investment, the limited partners are considered more as investors than partners; in addition to the fact that they are not required to participate in the management of the business (LeRoy & Jentz, 2009). After the 20 July 2000, when the Limited Liability Partnership Act 2000 was accorded the Royal Assent, the LLP’s were introduced as the latest business vehicle across the United Kingdom beginning 6 April 2001. This date was during the Inland Revenue tax year associated with the taxation structure adopted for LLP’s. Consequently, the increase in limited liability partnerships in entirely linked with the unique tax advantages available for the partners/members. Profits and losses can be directly passed with certain limitations to the partners because the limited partnership is not taxed as a separate legal entity. ... According to Arthur and Sheffrin (2003, p. 183), the LLP is made of distinct partners due to the statutory rights and responsibilities accorded to both limited and general partners. However, the difference between the rights and responsibilities of general partners in a limited partnership against those of a general partnership should be stipulated in the statute and the partnership agreement. Because of the ‘limited’ nature of limited partners, general partners become personally responsible for the obligations and debts of the company (Wood, 1997). The limited partners of a LLP are entitled to specific rights and responsibilities. Considered a ‘limited’ party, the limited partner enjoys fewer rights and hence has fewer responsibilities than the general partners. Their limited liability means that their risk is limited to the investment amount in the LLP. Unlike other partners, the interest of a limited partner is perceived as personal property. For instance if the partnership owns land, the limited partner will have an interest in the limited partnership and not the title to the assets. According to Emerson (2009) partners in a general partnership are allowed to participate in the management of the company; while limited partners attempting to participate in the control of the partnership face the risk of losing his/her limited liability status. According to the Revised Limited Partnership Act, specific responsibilities and powers are outlined through which a limited partner will lose their limited liability. Some of which include attending partners’ meetings; proposing or pursuing a derivative action in place of the company; acting as surety or representing a guarantee for the company;

Inequality in the UK its effect on the national economy Essay

Inequality in the UK its effect on the national economy - Essay Example Why should economists care about inequality in the distribution of incomes? Poverty and economic inequality are intimately bound with one another both as a policy or an analytical issue. Economic well-being and income distribution are related as demonstrated in the societal understanding of justice and human rights, and, therefore, render economic equality an intrinsic value. High levels of economic equity are associated with desirable social outcomes especially in the realms of health and crime (Andrew and Meen2006). The EU defines poverty as living on less than half the average national income, as such, irrespective of the average income, the greater the income inequality, the higher levels of poverty in a country. The definition of the extent of poverty depends on both the level of a society’s income and the distribution of income. Therefore, societal standards or norms of essential needs in a society are determined by the middle class (Brueckner, Thisse and Zenou 1999). In the case of two societies where the bottom segments have the same level of income, poverty is more prevalent in the in the society where income is more unequally distributed. The bottom quintile of the unequal society will be more isolated from the middle quintile and will, therefore, be further from meeting the standards of that society. As a result, more members of this bottom quintile will be stuck in poverty (Beroube 2005).

Proposed System for Plagiarism Detection

Proposed System for Plagiarism Detection Chapter 3 The Proposed System Introduction This chapter introduces ZPLAG as proposed system, and its most important design issues are explained in details. It is very easy for the student to find the documents and magazines using advanced search engines, so the problem of electronic thefts is no longer local or regional, but has become a global problem occurring in many areas. Due to the Hugging of information, and correlation networks, the discovery of electronic thefts is a difficult task, and the discovery of the thefts started in the Arabic language and the most difficult task no doubt. And in light of the growing e-learning systems in the Arab countries, this requires special techniques to detect thefts electronic written in Arabic. And although it could use some search engines like Google, it is very difficult to copy and paste the sentences in the search engines to find these thefts. For this reason, it must be develop a good tool for the discovery of electronic thefts written Arabic language to protect e-learning systems, and to facilitate and accelerate the learning process, where it can automatically detect electronic thefts automatically by this tool. This thesis shows, ZPLAG, a system that works on the Internet to enable specialists to detect thefts of electronic texts in Arabic so it can be integrated with e-learning systems to ensure the safety of students and research papers and scientific theses of electronic thefts. The thesis also describes the major components of this system, including stage outfitted, and in the end we will establish an experimental system on a set of documents and Arabic texts and compared the results obtained with some of the existing systems, particularly TurnItIn. The chapter is organized as follow; Section 3.2 presents an overview of the Arabic E-Learning, Section 3.3 presents and explains the General Overview of the Proposed System, Section 3.4 explains in details the system architecture of the proposed system ZPLAG. Section 3.5 gives a summery for this chapter. General Overview of the Proposed System The proposed system consists of three different phases namely; (1) Preparation phase, (2) Processing phase, and (3) Similarity detection phase. Figure 3.1 depicts the phases of the proposed system. Figure 3.1 Proposed system phases Preparation Phases: this phase is responsible for collecting and prepares the documents for the next phase. It consists of five modules: text editor module, check language module, check spelling module, check grammar module, and Sentences analysis module. Text editor module allows the user to input a text or upload a text file in document format, these files can be processed in the next phase. The check language module is responsible for checking the input file written language, If it is an Arabic language then use Arabic process, or English language then use English process. The check spelling module use to check the words are written correct or there is some misspelling. This phase consists of three modules explained as follows: Tokenization: break up the input text as some token . SWR: remove the common words that appear in the text but carry little meaning. Rooting: is the process of removing: (prefixes, infixes, or/and suffixes) from words to get the roots or stems of this word Replacement of Synonym: words are converted to their synonyms. Similarity detection Phases: It is consists of three modules Fingerprinting, documents representation and similarity detection, this phase discussed as follows: To calculate fingerprints of any document, first cut up the text into small pieces called chunks, the chunking method that responsible for cutting up the text will be determined [12]. A unit of chunk could be a sentence or a word. In case of chunking using sentences called sentence-based, the document can be cutted into small chunks based on ‘C’ parameter. For example, a document containing sentences ds1 ds2 ds3 ds4 ds5, if C=3 then the calculated chunks will be ds1 ds2 ds3, ds2 ds3 ds4, ds3 ds4 ds5. For example, a document containing words dw1 dw2 dw3 dw4 dw5, if C=3 then the calculated chunks will be dw1 dw2 dw3, dw2 dw3 dw4, dw3 dw4 dw5. The chunking using Word gives higher precision in similarity detection than the chunking sentence. The Architecture pf Proposed System The following properties should be satisfied by any system detecting plagiarism in natural language: Insensitivity to small matches. Insensitivity to punctuation, capitalization, etc. Insensitivity to permutations of the document content. The system main architecture of ZPLAG is illustrated in Figur1. Preparation: text editor, check language, check spelling, and check grammar. Preprocess: synonym replacement, tokenization, rooting, and stop-word removal. Fingerprinting: the use of n-gram, where the user choses the parameter n. Document representation: for each document, create a document tree structure that describes its internal representation. Selection of a similarity: use of a similarity metric to find the longest match of two hash strings. As mentioned in the previous section, the system architecture breakdown contains three main phases. Each phase will be composed to a set of modules in terms of system functionality. The following section contains the description of each phase and its modules in details. 3.4.1 The Preparation Phase The main task of this phase is to prepare the data for the next phase. It consists of text editor module, check language module, check spelling module and check grammars module. 3.4.1.1. Text editor Module Figure 3.2, illustrates text editor module. The users of the text editor module are faculty members and students, where the users need a text area to upload their files, so the brows helps for file path to make it easy for the users, After that check file format is very important , because the service upload files with doc or docx format, then after the user upload the file , the text editor module save the file in the database. Figure 3.2 text editor module 3.4.1.2 Check Language Module The raw text of the document is treated separately as well. In order to extract terms from text, classic Natural Language Processing (NLP) techniques are applied as. Figure 3.3 illustrates Check Language module and its functions: from the system database, whereas all the files are stored, the check language module bring the file and read it, then check for language either Arabic , English or combo (both Arabic and English), After that mark the document with its written language and save the file again in the system database. Figure 3.3 check language module 3.4.1.3 Check Spelling Module Figure 3.4 illustrates Check spelling module and its functions: after bringing the document from the system database, whereas all the files are stored, the check spelling module read the file, and use the web spelling checker, then the check spelling module make all the possible replacements for the words in false spelling check , After that save the file again in the system database. Figure 3.4 check spelling module 3.4.1.4 Check Grammars Module For English documents, Figure 3.5 illustrates Check grammar module and its functions: after bringing the document from the system database, whereas all the files are stored, the check grammar module read the file, and use the web grammar checker, After that the check grammar module mark the sentences with the suitable grammar mark and save the file again in the system database. Figure 3.5 check grammar module 3.4.2 The processing Phase 3.4.2.1 The Tokenization Module In the Tokenization module : after bringing the document from the system database, whereas all the files are stored, the Tokenization module read the file, and brake down the file into paragraphs, after that brake down the paragraphs into sentences, then brake down the sentence into words. After that save the file again in the system database. 3.4.2.2 The Stop Words Removal and Rooting Module The raw text of the document is treated separately as well. In order to extract terms from text, classic Natural Language Processing (NLP) techniques are applied as. Figure 3.6 illustrates Stop Words Removal and rooting module and its functions: Figure 3.6: SWR and Rooting module SWR: Common stop words in English include: a, an, the, in, of, on, are, be, if, into, which etc. Whereas stop words in Arabic include: Ù†¦Ãƒâ„¢Ã¢â‚¬   , Ø ¥Ãƒâ„¢Ã¢â‚¬Å¾Ãƒâ„¢Ã¢â‚¬ ° , Ø ¹Ãƒâ„¢Ã¢â‚¬   , Ø ¹Ãƒâ„¢Ã¢â‚¬Å¾Ãƒâ„¢Ã¢â‚¬ ° , Ù Ãƒâ„¢Ã…   etc. These words do not provide a significant meaning to the documents . Therefore, they should be removed in order to reduce ‘noise’ and to reduce the computation time. Word Stemming: it will be changed into the word’s basic form. 3.4.2.3 Replacement of Synonym Replacement of Synonym: It may help to detect advanced forms of hidden plagiarism. The first synonym in the list of synonyms of a given word is considered as the most frequent one. 3.4.3 The Similarity Detection Phase 3.4.3.1 The Fingerprinting Module It is consists of three modules Fingerprinting, documents representation and similarity detection, this phase discussed as follows: To calculate fingerprints of any document, first cut up the text into small pieces called chunks, the chunking method that responsible for cutting up the text will be determined [12]. A unit of chunk could be a sentence or a word. In case of chunking using sentences called sentence-based, the document can be cutted into small chunks based on ‘C’ parameter. For example, a document containing sentences ds1 ds2 ds3 ds4 ds5, if C=3 then the calculated chunks will be ds1 ds2 ds3, ds2 ds3 ds4, ds3 ds4 ds5. In case of chunking using word called a word-based chunking, the document is cutted into small chunks based on ‘C’ parameter. For example, a document containing words dw1 dw2 dw3 dw4 dw5, if C=3 then the calculated chunks will be dw1 dw2 dw3, dw2 dw3 dw4, dw3 dw4 dw5. The chunking using Word gives higher precision in similarity dete ction than the chunking sentence. ZPLAG is based on a word-based chunking method: in every sentence of a document, words are first chunked and then use a hash function for hashing. 3.4.3.2 The Document Representation Module Document representation: for each document, create a document tree structure that describes its internal representation. 3.4.3.3 The Similarity Detection Module A tree representation is created for each document to describe its logical structure. The root represents the document itself, the second level represents the paragraphs, and the leaf nodes contain the sentences. Summary Being a growing problem, The electronic thefts is generally known as plagiarism and dishonesty academic and they constitute a growing phenomenon, It should be known that way to prevent its spread and preserve the ethical principles that control the academic environments, with easy access to information on the World Wide Web and the large number of digital libraries, electronic thefts have become one of the most important issues that plague universities and scientific centers and research. This chapter presented in detailed description of the proposed system for plagiarism detection in electronic resources and its phases and its functions.

Thomas Edison :: biography biographies bio

Thomas Edison was born Febuary 11, 1847 in Milan Ohio. He was the youngest of seven siblings, and did not learn to talk until he was nearly four. At the age of seven Edison spent three months in school until his mother took him out of school and home schooled him. When Tom turned twelve the young entrepreneur became a railroad newspaper boy. He would ride rail cars selling candy, newspapers, fruits, and vegetables. Soon after Edison began working on the railroads he became practically deaf. There are several theories on what happened to make the inventor deaf one of the widest spread beliefs is that Edison lost his hearing when a conductor boxed his ears after Edison accidentally set fire to a train car. Edison said that he lost his hearing when a brakeman caught Edison by his ears to stop Edison from falling off the train. Regardless of what happened Edison couldn't hear out of his left ear and was about eighty percent deaf in his right ear. One day before getting on a train fourteen year old Edison noticed a todler with his back turned to an oncoming train. Tom reacted quickly throwing himself and the toddler off the tracks in the nick of time. The three year olds dad trained Edison to operate a telagraph machine as a reward. By the age of sixteen Edison had mastered this skill and left home. He moved to Boston, however a year and a half after he started working there he was forced to quit because his employer accused him of "not concentrating on his primary responsibilities, and doing to much moonlighting." Edison was moved to New York where he arrived practically broke. Three weeks after arriving in New York Edison had a job that paid much better than his Boston employer. The story goes that Edison who was broke and on the verge of starving came across a panicing broker. The broker was freaking out because an important stock ticker had broken. Edison tinkering paid off when he quickly fixed the ticker. The broker hired Edison on the spot as the company's repair man for $300.00 a month a very impresive amount in 1869. A year later Edison became a rich man when a company paid $40,000 for an improved stock ticker. Edison had expected no more than $5,000. After getting his first check for that much money Edison was at a loss for what to do.

An investigation on the development of car safety and the importance of airbags Essay

Chemistry experiment to simulate the inflation of an airbag in case of a car crash Aim Our aim is to create a chemical reaction to demonstrate the rapid inflation used in automobiles. The inflation of an airbag is a very fast reaction, and the typical reactants used are a mixture of Calcium carbonate (CaCO3), Potassium nitrate (KNO3) and Silicon dioxide. When a car crash occurs a sensor in the car’s airbag triggers the reaction that will save the drivers life if the speed at which he is moving is greater than 16-24 km/h-1. The nitrogen has to be produces more quickly than the driver hitting the steering wheel. The entire reaction is completed in less than 1/25 of 1 sec, because of the danger of this reaction, to demonstrate in a similar way the reaction that takes place in an airbag we have chosen to inflate a balloon using the gas obtained by the reaction of a metal acid to produce sodium carbonate. Equation Ca(s) + 2HCl(aq) = Ca(aq) + (g) + O(l) Materials -Conical Flask -Cork with delivery tube -heat mats -spatula -chemicals (baking soda) – goggles (safety glasses) Procedure à ¯Ã‚ ¿Ã‚ ½ Gather all apparatus needed for the entire experiment à ¯Ã‚ ¿Ã‚ ½ Set up all apparatus à ¯Ã‚ ¿Ã‚ ½ Pour CaCo3 into the conical flask à ¯Ã‚ ¿Ã‚ ½ Add the HCl to the solution already in the conical flask à ¯Ã‚ ¿Ã‚ ½ Cover the flask with a cork delivery tube which will then allow to blow up the balloon à ¯Ã‚ ¿Ã‚ ½ Observe the reaction Conclusion Our experiment was successful in proving the function of an airbag of a car. Our experiment aimed to demonstrate the safety of the passengers of an automobile, through the use of an airbag. For our chemistry experiment we chose to adapt the airbag inflation to our IB program syllabus, hence by doing an experiment similar to the one we had already successfully completed during the school year. was the element produced that mainly inflated the balloon, the reaction took place almost immediately. Hence, we have experimented the chemical reaction of a metal acid that produced Sodium Carbonate and inflated a balloon, the reaction was similar to the inflation of an airbag, proving the same chemistry principles. Research Question: How airbags managed to improve automobile safety. Introduction: The development of airbags began with the idea for a system that would save automobile drivers and passengers in a car accident, whether they were wearing their seat belts or not. Nowadays, airbags are compulsory in new cars and are designed to act as a supplementary safety device in addition to a seat belt. Airbags were invented in 1953. The automobile industry started in the late 1950’s to research airbags and soon discovered that there were many difficulties in the development of an airbag. Crash tests showed that for an airbag to be useful as a protective device, the bag must deploy and inflate within 40 milliseconds. The system must also be able to detect the difference between a severe crash and a minor fender-bender. These technological difficulties slowed the airbag creation process of 30 years, and in fact, it was in the mid 1980s that airbags started to be installed in all cars produced. In recent years, increased reports in the media concerning deaths or serious injuries due to airbag deployment have led to a national discussion about the usefulness and â€Å"safety† of airbags. Questions are being raised as to whether airbags should be mandatory, and whether their safety can be improved. However, as Graph 1 and 2 demonstrate, airbags have saved lives and have lowered the number of severe injuries. Graph 1 This bar graph shows that there is a significantly higher reduction in moderate to serious head injuries for people using airbags and seat belts together than for people using only seat belts. Graph 2 Deaths among drivers using both airbags and seat belts are 26% lower than among drivers using seat belts alone. An airbag must be able to deploy in a matter of milliseconds from the initial collision impact. It must also be prevented from deploying when there is no collision. Hence, the first component of the airbag system is a sensor that can detect head-on collisions and immediately trigger the airbag’s deployment. One of the simplest designs employed for the crash sensor is a steel ball that slides inside a smooth bore. The ball is held in place by a permanent magnet or by a stiff spring, which inhibit the ball’s motion when the car drives over bumps or potholes. However, when the car decelerates very quickly, as in a head-on crash, the ball suddenly moves forward and turns on an electrical circuit, initiating the process of inflating the airbag. Once the electrical circuit has been turned on by the sensor, a pellet of sodium azide (NaN3) is ignited. A rapid reaction occurs, generating nitrogen gas (N2). This gas fills a nylon or polyamide bag at a velocity of 150 to 250 miles per hour. This process, from the initial impact of the crash to full inflation of the airbags, takes only about 40 milliseconds (Movie 1). Ideally, the body of the driver (or passenger) should not hit the airbag while it is still inflating. In order for the airbag to cushion the head and torso with air for maximum protection, the airbag must begin to deflate as the body hits it. Otherwise, the high internal pressure of the airbag would create a surface as hard as stone, a device that wouldn’t result useful to the passenger or driver. Evaluation: The kinetic theory of gases assumes that gases are ideal, thus that there are no interactions between molecules, and the size of the molecules is small compared to the free space between the molecules, but molecules are as a physical body that moves continually through space in random directions. In a microscopic view, the pressure exerted on the walls of the container is the result of molecules colliding with the walls, and hence exerting force on the walls (Graph 3). When many molecules hit the wall, a large force is distributed over the surface of the wall, which gives pressure. An important fact derived from the kinetic theory of gases shows that the average kinetic energy of the gas molecules depends only on the temperature. Since average kinetic energy is related to the average speed of the molecules (EK = mu2 / 2, where m=mass and u is the average speed), the temperature of a gas sample must be related to the average speed at which the molecules are moving. Thus, we can view temperature as a measure of the random motion of the particles, defined by the molecular speeds. This implies that there must be a range (distribution) of speeds for the system. In fact, there is a typical distribution of molecular speeds for molecules of a given molecular weight at a given temperature, known as the Maxwell-Boltzmann distribution (Graph 3). This distribution was first predicted using the kinetic theory of gases, and was then verified experimentally using a time-of-flight spectrometer. As shown by the Maxwell-Boltzmann distributions in Graph 3, there are very few molecules traveling at very low or at very high speeds. The maximum of the Maxwell-Boltzmann distribution shows the intermediate speed at which the largest number of molecules are traveling. As the temperature increases, the number of molecules that are traveling at high speeds increases, and the speeds become more evenly distributed in the curves. Graph 3 The Maxwell-Boltzmann distribution can be shown graphically as the plot of the number of molecules traveling at a given speed versus the speed. As the temperature increases, this curve broadens and extends to higher speeds. As seen in Graph 3, there is a unique distribution curve for each temperature. Temperature is defined by a system of gaseous molecules only when their speed distribution is a Maxwell-Boltzmann distribution. Any other type of speed distribution rapidly becomes a Maxwell-Boltzmann distribution by collisions of molecules, which transfer energy. Once this distribution is achieved, the system is said to be at thermal equilibrium, and hence has a temperature. When a body hits the steering wheel directly, the force of this impact is distributed over a small area of the body, resulting in injuries to this area. The area that hits the steering wheel is shown in red. When a body is restrained by an airbag, the force of the impact is distributed over a much larger area of the body, resulting in less severe injuries. The area that hits the airbag is shown in orange. Conclusion:The law of inertia, is demonstrated in a car collision and it is Newton’s first law which states that: objects moving at a constant velocity continue at the same velocity unless an external force acts upon them. When a car stops suddenly, as in a car incident, a body inside the car continues moving forward at the same velocity as the car was moving prior to the collision, because its inertial tendency is to continue moving at constant velocity. However, the body does not continue moving at the same velocity for long, but rather comes to a stop when it hits some object in the car, such as the steering wheel or dashboard. Thus, there is a force exerted on the body to change its velocity. Injuries from car accidents result when this force is very large. Airbags protect you by applying a restraining force to the body that is smaller than the force the body would experience if it hit the dashboard or steering wheel suddenly, and by spreading this force over a larger area. For simplicity, in the discussion below, we will consider only the case of a driver hitting the steering wheel. If there is a restraining device as an airbag, the force of impact decreases, hence, the airbag reduces the rate of deceleration. Therefore, the force on the body is smaller and fewer injuries result. When an airbag restrains the body, the body exerts an equal and opposite force on the airbag. Unlike the immovable steering wheel, the airbag is deflated slowly. This deflation can occur because of the presence of vents in the bag. The force exerted by the body pushes the gas through the vents and thus deflates the bag. Because the gas can only leave at a certain rate, the bag deflates slowly. Additionally, airbags help reduce injuries by spreading the force over a larger area. If the body crashes directly into the steering wheel, all the force from the steering wheel will be applied to a localized area on the body that is the size of the steering wheel, from which a serious injury can form. However, when the body hits an airbag, which is larger than a steering wheel, all the force from the airbag on the body will be spread over a larger area of the body. Therefore, the force on any particular point on the body is smaller. Hence, less serious injuries will occur, this will also help to save the driver’s and passenger’s life. This is how a simple chemical equation avoids the deaths of millions. Physic’s Experiment Investigating safety on cars Introduction As cars became increasingly powerful and fast, rate of incidents increased exponentially and, usually more violent. This meant, over the years, a constant research and development of new security measures, and even nowadays more and more new systems are introduced every day. This development gave birth to what we now consider to be the basic requirements of any safe car, such as seat belts, air bags and crumple zones. Crumple zones The structures that in cars are commonly known as crumple zones are areas placed on the front and usually on the rear of a vehicle that are designed to absorb energy during impact in a predictable and controlled way. In the late 1950s, the general population still believed that the stronger the structure of a car, the safer that car would be during an incident. Actually, however, this kind of construction criteria proved to be fatal to most passengers. This is because during a collision all the energy of the impact went directly to the vehicle and onto the passengers. In 1967, the Mercedes Heckflosse was the first mass production car in the world to feature â€Å"crumple zones† and a safety cage. In order to fit appropriate crumple zones, the truck was made almost 50% bigger. Nowadays car featuring crumple zones and rigid cabs are standard safety requirements in almost every car made throughout the world. The fact that a car that crushes more easily protects its passengers more than a car that does not crush at all, may seem strange, but, in fact, the reason for this seem obvious when considering the physics behind it. Newton’s first law states that a body will remain at rest or continue travelling at uniform motion (constant velocity) unless a force is acted on it. Therefore, in a situation in which a car is impacting with a wall, if a vehicle is travelling at 70 km/h, the passengers inside are doing the same, and when the vehicle collides with the wall and comes to a sudden stop, the passengers’ bodies will continue going in the same direction at the same speed, 70 km/h. As stated in the law, these bodies will keep on moving forward until they themselves collide with a part of the car or with another passenger. Even when the human body comes to rest in this kind of incident, its internal organs slam against each other and against bones. This will, of course cause, injuries to the passengers and sometimes even death. Newton’s second law of motion states that: The law conveys that as the time taken by the car to arrive to complete rest increases, the force transferred to the car and, therefore its passengers, will be decreased. On the other hand, if the amount of time to reach complete halt is decreased, the force experienced will be greater. Crumple zones are specifically designed in order to crush, absorbing part of the force of the collision. The force of the collision is given out during the impact in the form of heat, sound and in from of mechanical work done on the crumple zone. The front (and rear) part of the car acts as a cushion and it is able to increase the time taken to reach complete halt and, hopefully, save the passengers’ lives. However crumple zones only work provided there is no intrusion on external elements, like the engine, in the rigid cage. This concept can be easily explained thought a simply example. Take for instance two object, the first is a solid steel block, while the second is an aluminium can. When the solid steel block (or car with no crumple zones) impacts with the wall, the wall does not move and, instead, exerts an equal magnitude and opposite direction force on the block. This causes the block to bounce off the wall in an elastic manner, conserving almost all its initial kinetic energy (EK) and, therefore, experiencing a large force. On the other hand when considering the aluminium can, the situation is different. When an aluminium can (or a car with crumple zones) impacts with a wall, it does not conserve all of its initial kinetic energy (EK). This is because, instead of just bouncing off, some of the kinetic energy is transformed into mechanical work, heat and sound , during the squashing of the crumple zones. The result is a smaller force acted on the can. The action of crumple zones increases the time of collision and lessens the amount of force experienced by the aluminium can. Specific materials As seen in the previous section, the material with which different parts of the vehicle are built are of primary importance. Depending on how we want specific parts of the car to behave, specific material must be chosen. For instance, crumple zones are expected to crush easily, while the inner rigid cage is supposed to withstand higher forces without braking. Based on this information we can determine that the best material to build a crumple zone is an easily bendable metal like aluminium, instead for the rigid cage, a much harder alloy like steel. Alloys are partial or complete solid solutions of one or more elements (metallic or/and non-metallic) in a metallic lattice. Alloys usually present different properties from those of the elements composing them. Alloying one metal with one or more metals or non-metals often improves the properties of the starting elements. For instance, when considering steel we can see how this alloy is stronger than its primary element, iron (Fe). Even though physical properties, such as density, reactivity, electrical and thermal conductivity, of the alloy does not differ inn great amount from those of its constituent elements, engineering properties such as tensile strength and shear strength can differ considerably. The tensile strength of a material is the maximum amount of tensile stress (measured in Newton) that it can tolerate before it tears to parts. The shear strength, instead, is the ability of the material to resist shear stress. The increase in both tensile strength and shear strength are usually due to the sizes of the atoms in the alloy. Larger atoms in the alloy apply a compressional stress on neighbouring atoms, and smaller atoms apply a tensional stress on their neighbours. This particular composition of alloys helps to resist deformation when a strong force is applied on it. Even when the amounts of each element in an alloy are altered slightly, this presents huge differences in physical engineering properties and behaviour. For instance, very small amounts of carbon (C) (between 0.2% and 2.1%) are added to iron (Fe) and act as hardening agents preventing dislocation of the iron atoms. From the image on the left it is possible to see how the atoms of carbon (A) place in between the atoms of iron (B), preventing the sliding of the layers of iron atoms. However, in case the amount of carbon was excessive, this would have the opposite effect, causing the iron to be brittle and break easily. Some alloys are made by melting and mixing two or more metallic elements. The first alloy ever discovered was bronze, it was made of copper and tin, and was discovered during the prehistoric period known as the bronze age. It was originally used to make tools and weapons, but later it has been used for ornaments, bells, statues, and bearings. Video of crash tests Investigating the effectiveness on crumple zones during a frontal collision SUV Mass of the trolley/kg Distance from the wall /m Time taken/s Distance travelled after collision/m Detailed history of the airbag production Invented at the start of the 1950s, it only came to wide use during the 1960s. Air bag-equipped cars have demonstrated, both in controlled tests and everyday use, their effectiveness and reliability (in frontal collisions, deaths for drivers, were lowered by 28 percent in vehicles featuring air bags). In order to answer to the increased of safety concerns of the consumers, the federal government has forced all car manufacturers to upgrade the safety features installed on their cars. The Department of Transportation (DOT) regulations require that all cars sold in the US, being produced starting from year 1990, had to feature a passive restraint system. Passive restraint systems are security systems that require no activation by the driver and usually are identified to be automatic seat belts and air bags. For air bags, until year 1994 the regulations only require a driver’s air bag and must include passive protection on the passenger’s side (seatbelts). Later, in 1991, a new law required both driver and passenger air bags in all cars by year 1998 and in light trucks and vans by year 1999. Air bags are inflatable cushions designed to protect car passengers from serious or even fatal injury in case of a collision. The air bag is part of a system, also known as an air cushion restraint system (ACRS) or an air bag supplemental restraint system (SRS) (they are called supplemental because the air bag is designed to supplement the protection of seat belts). When detecting a collision, the air bags inflate instantly to provide the passenger with a big gas-filled cushion. A typical air bag system consists of an air bag module (containing an inflator or gas generator and an air bag), crash sensors, a diagnostic monitoring unit, a steering wheel connecting coil, and an indicator lamp. These components are all interconnected by a wiring harness and powered by the vehicle’s battery. Air bag sensors are specifically designed to prevent the air bag from inflating when the car travels over a bump or in case of a minor collision. In a frontal impact equivalent to hitting a solid barrier at a speed of 14.5 Km/h, the sensors located in the front of the car detect the sudden deceleration and send an electrical signal activating an initiator. The initiator is similar to a light bulb and contains a thin wire that heats up, breaking through the propellant chamber. This sudden penetration causes the solid chemical propellant, usually sodium azide, sealed up inside the inflator to undergo a very quick chemical reaction. This controlled reaction produces harmless blasts of the nitrogen gas that inflates the air bag. The resulting nitrogen gas fills the nylon bag in less than one-twenty-fifth (1/25) of a second, opening its plastic cover on the stirring wheel and inflating in front of the passenger before this hits the stirring wheel. As the occupant hits the inflated bag, the nitrogen gas is pushed out through some openings at the back of the bag. The bag remains fully inflated for no longer than one-tenth (1/10) of a second and is almost completely deflated by three-tenths (3/10) of a second after the impact with the passenger. Talcum powder or corn starch is used to line the inside of the air bag and is released from the air bag as it is opened causing the characteristic white cloud. Components of an airbag An air bag is formed by three main parts: the nylon bag, the inflator, and the propellant. The bag is made from a woven nylon fabric and can differ in shape and size depending on the specific vehicle safety requirements. Talcum powder or corn starch is used when handling the air bag, since either of the two substances prevents the woven nylon fabric from sticking together and makes assembling process easier. The inflator body is made from either stamped stainless steel or cast aluminium. Inside the inflator body there is a filter assembly formed by a stainless steel wire mesh with ceramic material held in between. When the inflator body is assembled in the factory, the filter assembly is wrapped by a metal foil to maintain the filter sealed preventing propellant contamination. The propellant, typically sodium azide ,in the form of black pellets, is combined with an oxidizer and is usually located inside the inflator body between the filter assembly and the initiator. Evaluation While analysing how I dealt with the Group Four Project, I noticed some facts that I could have improved, hence improvements that could be done in how my Group Four has worked. The members of my Group Four Project were: Jacopo Mauro, Daniel Gardin, Maria Airchinsky, Edoardo Nalon and Laure Rasscheart. I noticed that when we started to work at the project, we weren’t working as a team, as we still didn’t know what we really had to do, as time passed we got to know each other better and gained more confidence, thus, we started to work more as a team and we managed to assign tasks inside within the group, for example: Edoardo had to contact some car stores and to gather information about the crumple zones and the materials used in the car production, Jacopo and Daniel were the ones who worked on the physics experiment, since they are the two members of the group who have taken the physics course, while Laure, Maria and I did the chemistry experiment, since we had the idea of the inflation of a balloon as a representation of an airbag. The project could have been done in a more efficient way; we lost a lot of time to actually start with various ideas, set the experiments, and start working as a group, although it is possible to recognize the fact that our problems in getting organized were also due the fact that the members of the group never had study periods at the same time. Probably, something that could have really helped our report was to have a â€Å"leader† perhaps not the smartest, but the one who could have made sure that everyone who was actually proceeding with their tasks, and not wait for the last minute to do so. Perhaps he/she could have given the others some deadlines, and set up meetings to see how everyone was doing. Another thing that we could have improved in our Group 4 Project was that we didn’t have many meetings, we had also the summer to work on it, and we didn’t really do much, so we waited for September when we came back from vacations to start again to worry about finishing the project. Moreover, every member of the group was at a different level in chemistry and math, for example: Jacopo and Daniel are very good at chemistry and physics, in fact they chose the scientific course, while Laure, Edoardo, Maria and I don’t even take physics and aren’t objectively very good in chemistry. However, what emerged from our difficulties was a complex and elaborated project, a research on an important thematic such as safety in the streets, focusing on car accidents. Our project could be expanded on an international scale by suggesting other schools to perform the same research as we did, hence rising internationally the awareness in students on how chemistry and physics are important on a daily basis, how these subjects are at the base of our most important healthy issues.