Structure of the eye and ear :: essays research papers

Structures of the eye and ear We use our ears for the hearing sense, and we use our eyes for vision. Both are very important senses and would be hard to get along without. We rely on hearing for communication, navigation, entertainment and many other purposes Now for our eyes we use them for vision, their like our own personal camera’s, both have and use lens to focus on images. The eyes respond to the visible spectrum, this spectrum is made up of wavelengths of different sizes. The shorter waves produce a purple color, while Longer wavelengths produce blue, yellow, green and orange, and the longest Waves are red. Saturation, brightness, and hue all are components used in the Visible spectrum. More than half of the sensory receptors in the body happen to be located in the eyes, also the cerebral cortex plays a large role in processing Visual information. Some accessory structures of the eye are: the eyelids, eyelashes, eyebrows, Lacrimal apparatus, and the extrinsic eye muscles. The eyelids or (palpebrae) Are used for shade, whether it’s for sleeping or from excessive light, or from foreign objects that don’t belong in the eye. While the eyelids are protecting The eye it also helps at the same time by spreading lubricates over the eyeballs. The eyelashes help protect from foreign objects and perspiration, as well do the Eyebrows . The Lacrimal apparatus is a group of small structures, when humans Express emotions with tears, the Lacrimal apparatus helps to produce and then Drain those tears away. There are six extrinsic eye muscles to help move each Eye; the superior rectus, inferior rectus, lateral rectus, medial rectus, superior oblique and inferior oblique. Circuits in the brain stem and cerebellum tell these muscles what to do. The structure of the eye begins with the fibrous tunic, vascular tunic And the retina. These are all on the wall of the eyeball, the fibrous tunic consist of the cornea and the sclera. The cornea is what covers the iris, and is the outermost layer of the eye through which light passes. The sclera or the â€Å"white† of the eye, this is what gives form to the eyeball. The vascular tunic has three parts to it; the choroids, ciliary body, and the iris. The choroids is what provides nutrients to the surface of the retina. The ciliary body consist of ciliary muscle and the iris which is the colored part of the eye, it regulates the amount of light

Playing Billy Beane

Since publication in 2003, Moneyball has entered the baseball dictionary.   When a team decides to brush off traditional strategies, they are said to be playing moneyball. This is what Billy Beane, the general manager of Oakland Atheltics and the hero of Moneyball, is best known for.   Beane, as a player was not so great, but as the A’s manager at the sidelines, he started a revolution. In a nutshell, Beane knows how do more with so much less.   The A’s $55 million salary fund would pale in comparison to the Yankees’ $205 million (Hammonds 84).   Given the economics, Beane admits they can’t do the same things the Yankees do.   But with roughly one-third of the Yankees’ salary cap, the A’s still managed to finish big with the second-best win-loss record in the league—next only to the Yankees. How did Beane do it? Beane’s tactics and exploits off the field were the center of Michael Lewis’ Moneyball: The Art of Winning an Unfair Game.   Professional baseball is a sport divided by teams who have much and teams who have none.   It is a derby between big-market teams who wave hefty paychecks temptingly under the noses of star players and smaller clubs who scrap for what’s left. That is the first managerial philosophy of Beane—scooping up potential team assets that rivals have ignored and undervalued.   As far as Beane is concerned, statistics and math work but only when they properly correspond to a player’s economic value. (86)   The Beane formula is to find players on the rise, potential superstars who are not red hot at the moment but could catch fire later on.   He will keep them until market catches up, give them away at a point he can no longer compete. A classic example was when Oakland signed 28-year-old Matt Stairs, a washed-up outfielder from the minor league.   Beane got him for $130,000 per year in 1996. Everyone though it was a bad catch, everyone except Beane.   But the former first round pick was right.   Over the next four years, Stairs hit the ball.   In 2000, his performance dipped as his market price went up.   Then Beane let him go for a pitcher. For Beane, every recruit has a potential to make it big.   Every move has its own risk but also its own purpose. Instead of looking at a player’s batting averages, fielding, or getting fascinated with his home runs, Beane focused on walks, on-base percentages and power. (85)   Oakland sought for players who can get on base like patient hitters who could tire out the opponent and finish it with a walk or a base hit.   The A’s type of player is one who can contribute in ways other ball clubs do not value as much. Beane is an expert in exploiting market mismatches.   He firmly believed that the criteria and standards set by scouts and managers in spotting players have been previously illogical.   Beane is gutsy, he takes risks.   But unlike most general managers, he finds a way to reduce the risks as the season progresses. He has learned the importance of calculated opportunism and this was evident in the 2002 draft when the A’s went the all-college approach. Gone are the days when general managers judge potential players by their sheer abilities.   These days, in a sport that has become a serious money-making venture, economic feasibility prompts every decision.   At the same time, as general manager, he says he had to evaluate players not only by their current feasibility but also his future trend. Citing all the numbers and statistics, Beane says baseball is predictable. (87)   He says there is always a way to least risk.   Like a true economist, he believes there is a great chance that the team will get some return on a particular asset. With Beane’s unconventional sports economics, Moneyball has been recognized not only by sports critics but also by economists.   Beane knows the baseball market place.   He acknowledges the gap between the market and the player’s value.   Knowing that market price and a player’s performance do not follow the same rules, he made sure to leave a way to narrow the gap. Considering the fact that Oakland cannot afford much, Beane has learned to thrive within windows of opportunity.   Like a baseball analyst says, the A’s are in a â€Å"commodity-management business†.   Beane’s philosophy is to keep the organization as flexible as he can.   He is good at creating options and the same time knows how to look at things the grown-up way.   Players are commodities with a tag price and the good thing is he knows whether that commodity is sinking or rising. As a general manager, Beane also knows that he has to rebuild.   The stakes evolve and therefore expecting continued success by doing the same things over and over has become impossible.   For Beane, it’s a matter of â€Å"identifying the moment.†Ã‚   One has to be creative enough to know when to trade off existing players and start fresh.   He cautioned however that when one chooses to rebuild, he must give it all.   No hesitations.   All or nothing.   It’s either a team rebuilds or not. As general manager, Beane also makes sure the players and the coaching staff knows who’s the boss.   Beane says he takes full responsibility of what happens in and out of the field.   He believes in giving his directors autonomy but during critical decision-making, he says he has to be there and cast his lot. A baseball club has a tight inner circle.   There is no bureaucracy and hours of organizational meetings fishing for hundred different opinions do not happen. Beane’s managerial style deviated form the traditional.   He acknowledges that all he can afford is to operate within windows of opportunity.   He has perfected the formula of matching a player’s performance metrics with his economic value.   He knows how to use his guts and correspond it with the statistics on paper that other teams might ignore. Oakland is an underfinanced team and it cannot afford superstars.   As the boss, Beane is expected to think differently, take risks, and effect changes.   At a time when scouts judge players by computers, Beane decided to oversimplify the thought.   Baseball’s traditional sabermetric community has been critical about this approach saying baseball’s math is much complex than Beane likes to admit. However, Beane insists that he recognizes the importance of statistics and that numbers are still at the heart of what the A’s do when they are out in the field.   The only difference is that Beane does not content himself with just what percentages or averages say.   He has learned how to relate this with how much a player is truly worth. As a baseball insider, Beane understands that the sport is predictable.   This gives Beane the chance to play the casino.   There is no way he could lose. The painful truth however is that building and sustaining are two different things all together.   With the A’s doing much with less, it is safe to assume that Beane as general manager has been successful in building.   The question now is can he sustain it?   Will the A’s keep on winning?   Between building and sustaining, the latter is much difficult to come by. Works Cited Hammonds, Keith. â€Å"How To Play Billy Beane.† Fast Company Magazine. April 2003: 84-87.   

Tomorrow when the war began Essay

In the novel; ‘Tomorrow when the war began’, the characters experience various changes and transformations. These changes occur when the different characters experience life threatening situations and environmental change. The characters have to adapt, think and behave differently. The changes that occur involve the themes of leadership, war and love. Throughout the novel, John Marsden shows change in Ellie. In the beginning Ellie is a carefree but hard working girl and known as a bit of a tomboy. As the war begins she realizes she needs to grow up and mature quickly. Ellie went camping with her friends in Hell and was not worried or expecting anything. This is how Ellie was carefree in the beginning. Ellie became strategic when she saw what was happening at the show grounds by delegating people to certain jobs and roles. At the show grounds Ellie says, â€Å"I felt then, and still feel now, that I was transformed by those four steps. At that moment I stopped being an innocent rural teenager and started becoming someone else, a more complicated and capable person. A force to be reckoned with†¦ not just a polite obedient kid. †This quote shows us that this was the turning point where Ellie experienced major change and started thinking rationally. She developed and showed leadership. In the novel, the characters had never faced a war situation they did not know what to do or how to react. As the novel progresses, the characters strategies change, as does their perspective on war. â€Å"A month ago we were average teenagers†¦ now we’re soldiers, we won’t run, we won’t hide, we’ll fight and keep fighting, and never give up, until this war is finally won. † This quote by Ellie shows courage, strength and maturity. Throughout the text there many important references that relate to war countries now, where homes are being invaded and teenagers and even adults have to, â€Å"start thinking like soldiers†. This quote was said by Ellie and it again shows maturity and her realising that if they ever want to see their family again, they are going to have to fight and save their town. Chris falls asleep while keeping watch and Ellie freaks out, this is an important turning point in the text, this is when the teens really realise that this is war and they must fight if they are to survive. This is how the characters perspective of war changes and how the theme of war is explored in the novel. Throughout the text John Marsden describes relationships of love, friendship and hatred. Love is shown through the relationship that exists between Homer and Fi. In the text the teenagers are playing in the water and Homer gets distracted by looking at Fi. In the beginning Homer is immature, a loud mouth, disrespectful, a troublemaker, wild, crazy and many others When Homer meets Fi and falls in love with her, John Marsden shows a change in Homer to one of thoughtfulness, maturity, bravery and he shows emotion and compassion in Homer. This is how love is shown between Homer and Fi. The text explores the theme of friendship between all of the teenagers. When they have to fight and look out for each other they form a strong bond, they are like family to each other. â€Å"At that age you think boys have as much personality as coat hangers and, you don’t notice their looks. Then you grow up. † This quote means girls may not like boys, for example; Robyn and Homer are completely different. Robyn is a very polite and religious person and Homer is a bit of a wild pig, but in the end of the text the characters change, they look out for each other like they are family. Hatred is also described in the text when group of teens are fighting against the army and Corrie gets shot. The teenagers then feel hatred towards the soldiers because one of their closest friends could die. This is how the relationships change between the characters. The novel discusses and how tough war is and how hard others would fight for each other. Throughout the text we see how towns are invaded and families are torn apart, in some countries like Afghanistan for example, things like this still happen and it needs to stop! Leadership, war and love are some major themes that are described in Tomorrow when the war began. This text tells us to be courageous and if anything like this ever happened in Australia we would need to work together to survive.

Business Environment Of Vodafone Group Plc Marketing Essay

Business Environment Of Vodafone Group Plc Marketing Essay The aim of this report is to analysis the external and internal business environment of Vodafone Group Plc, and identifies possible strategy for Vodafone to sustain growth. Vodafone existence in Europe, Middle East, Africa, Asia Pacific and United States; operated in form of subsidiary, joint venture, associated, or investment in 21 countries, and operated in form of partner market agreement in 49 countries. See Annex I for details. To understand a company, it is best practice to begin from its Vision and Mission statement to understand the corporate direction. â€Å"Our Vision is to be the world’s mobile communication leader – enriching customers’ lives, helping individuals, businesses and communities be more connected in a mobile world.† â€Å"Our mission is to lead the industry in responding to public concerns regarding mobile phones, masts and health by demonstrating leading edge practices and encouraging others to follow.† External analysis PE STEL Analysis is tool used to scan the external macro-environment in which the company operates. It express in terms of Political, Economic, Social, Technological, Environmental, and Legal. Political Political factors including political stability, labor law, environmental law, trade restrictions, tax policy, and tariff. Country which Vodafone operate their business are political stable, and welcome for foreign investment or joint venture with local business. China, Israel, India have tax benefit for foreign investor. In UK, Ofcom introduced the local loop unbundling process required BT to allow other operators to install their own equipment in BT exchange; this policy lowered the entry barrier for the industry. Also more licenses was issued to new operator, competition in the market has become hot. Economic Economic factors including exchange rate, interest rate, inflation rate, and the economic growth. The global financial crisis especially in Europe causes the economic growth slo wly. Under this situation, customers become more price-driven than quality-driven. The bargaining power of bankers become stronger, get loan from bank become more difficult and have to pay higher interest. Social Social factors including population growth rate, age distribution, cultural aspects and life style. In Vodafone’s home country -UK, the population is increasing due to immigration and birth rate increase. The life style and way of using mobile phone are changing. The number of fixed line user is decreasing and the number of mobile phone user is increasing. Mobile phone is no longer using for only making phone call and text message, nowadays mobile phone is also use for web browsing, social media, and entertainment. Technological Technological factors including rate of technological change, automation, and technology incentives. The way of people using mobile phone change, need of a faster data transmission rate become necessary. New technology on both hardware and so ftware, such as IP phone and video on demand become common technology. Environmental Environmental factors including environmental protection regulation and non-regulated issue related to the industry. Currently there is no environmental regulation directly related to the industry. Legal Legal factors referring to laws regulating businesses. EU Roaming Regulation urges operators to lower charge on roaming service. Internal Analysis Resources Analysis Tangible Resources Vodafone Group Plc has total  £139,576 million of assets in year 2012. It has 14,000 stores and 238,000 base stations worldwide.

Amended Budget Paper Essay Example | Topics and Well Written Essays - 750 words

Amended Budget Paper - Essay Example Increase By 4% Amending the IT cost, need to focus on consolidating the operating budget of Riordan Manufacturing. Hence, a 4% increase in spending on IT items related to hardware, software, and outside IT support services, in addition to an increase in outside support charges, capitulate a net increase in spending of $105,100. The 4% increase in IT spending, implies that the annual IT budget, would have to be increased from $1, 901,300 to $1,977,352.In the short term, this implies reducing overheads, like telephone, office supplies, postage, shipping, postage, benefits, and bonuses which amount to $456,358 by around 23 percent. Raising spending on the baseline figures comprising hardware, software, and outside IT support services, would push services, such as licenses, maintenance, special projects and leased lines, to go up. Therefore, the organization can negotiate for lower licensing and leasing services, in addition to negotiating for cheaper contracts for special projects trans actions (Schwalbe, 2010). The increase in spending on items related to hardware, software, and outside IT support service, can be offset by initiating a hiring freeze, but not laying off of current IT department employees. This is necessitated by the fact that, the organization needs to retain and retrain current staff, so as to be competitive in an environment of increasing reliance on technology. Hence, the IT department staff should now spotlight on ITIL processes, in addition to best practices, in particular change-management advances, plus service-level contract. Over a long period, the increase in IT spending requires to be offset with revenue growth. Therefore, they can consolidate hardware purchasing process, in order to generate an upper return on investment in using technologies. Decrease in Overall Budget By 2% A decrease in IT overall budget by 2% implies a shift from $1,901,300 to 1,863,274 in terms of total IT spending. Hence, some expenses and their accompanying assum ptions require to be re-assessed, in order to change them to be more rational, and in the course, reduce the risk susceptibility to budget over-runs. Notably, not everything in the Riordan Manufacturing IT budget goes to technology, and the biggest item based on the figures, is human resources expenses. This amounts to 40 to 50% of the whole IT budget, going to salaries, benefits, and bonuses of internal support personnel, such as network personnel plus managers. The whole of the bonuses, benefits, travels, and entertainment amounts to $ 479,158 yearly, therefore, they need to reduce them by 8% percent, in order to offset the $38,026 drop in IT budget. On the other hand, in trying to offset the budget shortfall, the organization needs to be elastic in re-aligning special projects expenditures, from $150,000 to $111,974, a net of $38, 026.This in turn would easily fill the gap created by the 2% reduction in IT budget. Also, Riordan Manufacturing, can shift from the buying and paying licenses for their business processes software approach, to a Software-as-a-Service, or SaaS model. This implies that, the organization can get customizable business solution at a cheaper annual cost, in order to manage its business

Civil Rights Essay Example | Topics and Well Written Essays - 1000 words - 1

Civil Rights - Essay Example (Suffrage) This has brought us to the issue of Selma Civil Rights Movement, which happened sometimes many years back. It’s occurred due to the violation of Blacks right to Vote. â€Å"In 1963, Selma, Alabama, was a small town of about 30,000 people. It was located in Dallas County, where only 1% of eligible blacks were registered to vote. Many blacks were apathetic about voting, which they saw as "white folks business." As in Mississippi, it was supremely difficult for blacks to register to vote†. (Birmingham) It’s also another movement made of Civil Right. Is â€Å"often referred to as the SCLC, was one of the most significant participants in the civil rights movement in the 1950s and 1960s†. (Southern Christian Leadership Conference (SCLC)) â€Å"The SCLC had its origins in several mid-twentieth-century phenomena. Blacks returning from service in World War II (1941-45) were no longer willing to accept injustices at home that they had fought against abroad; black southern churches were powerful social institutions; blacks were becoming more involved in the Democratic Party;†. (Southern Christian Leadership Conference (SCLC) ‘Sit in at Technical College, was also part of the Civil Right Movement in the United State, which occurred in the year 1960. â€Å"In 1960 four freshmen from North Carolina Agricultural and Technical College in Greensboro strolled into the F. W. Woolworth store and quietly sat down at the lunch counter.†. (Sits In Freedom Rides and Demonstrations) They were the first blacks to attend school mixed with white. â€Å"They later came to be called, were the first black teenagers to attend all-white Central High School in Little Rock, Arkansas, in 1957. These remarkable young African-American students challenged segregation in the deep South and won. Although Brown v. Board of Education outlawed segregation in schools, many racist school systems defied the law by

Is the Chinese Currency Undervalued Research Paper

Is the Chinese Currency Undervalued - Research Paper Example Essentially, China enjoys preference as an import destination because its products are cheaper on account of the low value of the yuan. The US loses to China in terms of production and employment especially in industries such as textile, apparel and furniture (Carbaugh, 2012, p. 456). Moreover, concerns are also raised on the impact of the yuans low valuation in relation to the US dollar. In the event of trade where a Chinese exporter sells a product to an American trading partner, he receives the payment in dollar, which is then converted to the yuan. This development leads to the appreciation of the Chinese currency because the demand for it increases. It also means that the supply of the US dollar increases, leading to its depreciation, triggering a series of effects that automatically induces the Chinese government to intervene. This paper will address the issue of whether Chinas currency is, indeed, undervalued. China maintains a fixed exchange rate policy relative to the US dollar as opposed to the convention in most of its trading partners, which follow flexible exchange rate policies. The flexible system allows market forces to determine the value of the currency. China intervenes on its currency exchange on a daily basis. There were recent Chinese declarations that indicate willingness for a more flexible exchange rate policy. In 2010, for instance, US President Barack Obama lauded the Chinese government for its "decision to increase the flexibility of its exchange rate" and promptly stated that it "is a constructive step that can help safeguard the recovery and contribute to a more balanced global economy" (Wei & Bull, 2010 ). The indicated shift in Chinese currency policy is tantamount to an admission that a fixed currency is an unfair practice and that it allows the government to control currency in order to ensure its industries better competitiveness in the international market. Th e International Monetary Fund, used to through Article IV