Thursday, October 31, 2019

Whether or not euthanasia should be allowed in the USA Research Paper

Whether or not euthanasia should be allowed in the USA - Research Paper Example In case of legalization of Euthanasia, the act should be legalized because a major chunk of the population is supporting it and the support is increasing. PEW research reports that within a period of eight years the support for legalization of euthanasia has increased from 47% to 49% (PEW 1). Euthanasia should be allowed in United States because it is an ethically correct decision. According to the ethical decision making system of utilitarianism, only those acts and decisions are correct that result in the heights amount of happiness of the society (Su 65). Euthanasia relieves the patient as well as their family members from severe emotional and physical pain and helps in solving their financial issues. Therefore, euthanasia is an ethical act and should be allowed. Euthanasia is mainly administered to patients who are suffering from a deadly disease such as cancer. Due to this the patient and his family members experience ample amount of stress emotionally, financially as well as physically. According to Farina, per patient per year cost of cancer management ranges around $60K to $90K. Euthanasia is a way to end all these sufferings of the patient and other stake holders. Euthanasia should be allowed in United States as the major percentage of the population is US support it and the support is increasing. It should be allowed because it is ethically correct under the light of utilitarian code of ethics. Allowing euthanasia in US will decrease the emotional, physical and financial burden of the patient and other

Tuesday, October 29, 2019

Relativism and Morality Essay Example for Free

Relativism and Morality Essay We frequently make moral judgments about the actions of others. We proclaim that things like removing a wallet from someone else’s pocketbook on a crowded train; flying airplanes into the Twin Towers; and intervening (or not) in the Syrian war are wrong. According to Gilbert Harman, such judgments about people’s actions are defective because they lack relativity to the individual’s moral framework. (Harman, 1975) In ‘Some Moral Minima’ Goodman argues that â€Å"there are certain things that are simply wrong. † (Goodman, 2010) I contend that right and wrong are subjective, based upon elements of an individual’s belief system, and dependent upon the situation. In this paper, I will discuss theory based arguments to justify my disagreement with Goodman’s contention. When considering the theories of right and wrong, it is customary to think of them as absolute. If it’s wrong, it can’t be right or if it’s right, it can’t be wrong. It is only when we stop looking at these theories as absolutes that we can begin to explore the possibilities of moral, subjective and cultural relativity. I submit that a person’s actions are only right or wrong relative to their particular moral framework. It is wrong to kill is a statement that could be made by one based on his moral and/or cultural beliefs, thereby making it a true statement. However, the image becomes blurred when that same man is responsible for administering drugs to prisoners sentenced to death. Some would conclude that such acts raze his moral framework and change the truthfulness of the statement. I submit that, to make such a judgment absent the benefit of knowing the full extent of his moral beliefs would be flawed. There is the possibility that he defines killing and carrying out a death row sentence differently. Harman asserts that it is possible that when one says â€Å"It is wrong to steal† s/he is saying something true, but that when another says â€Å"It is wrong to steal† s/he is saying something false (Harman Jarvis Thomson, 1996). This theory, known as subjective relativity, is based on individual beliefs and on interpretation. An example of subjectivity in moral truth can be found in the classic tale of Robin Hood. On the one hand, Robin Hood describes the King’s taxation of the poor as stealing and states that it is excessive and, therefore, wrong. The judgment, based on his moral beliefs, is true. Robin Hood, however, justifies his own acts of stealing as charity, e. g. stealing from the rich to give to the poor. In this scenario, for Robin Hood to say stealing is wrong, he is stating a fact that is neither truthful, nor based on his moral beliefs. On the other hand, when looking upon Robin Hood’s acts of stealing through the King’s eyes, to conclude that Robin Hood is stealing and that stealing is wrong would be a true statement made by one who believes that stealing is wrong regardless of the situation. These examples are supported by both individualistic and subjective relativism. Richard Joyce contends that â€Å"individualistic relativism sees the vital difference as lying in the persons making the utterance. † (Joyce, 2007). In the Confucian school of thought, Mencius developed his philosophical theory on the contention that man’s nature is inherently good (Chan, 1996). Chan maintains that based on Mencius’ philosophy, â€Å"all men have a mind that cannot bear human suffering. † According to Chan, Mencius expounded on this position in the following excerpt. [w]hen men suddenly see a child about to fall into a well, they all have the feeling of alarm and distress, not in order to gain friendship with the childs parents, nor to seek the praise of their neighbors and friends, nor because they dislike the reputation (for being un-virtuous)†¦[t]he feeling of commiseration is the beginning of the feeling of love; the feeling of shame and dislike is the beginning of righteousness; the feeling of deference and complaisance is the beginning of wisdom. Men have these four beginnings just as they have four limbs. These four, love, righteousness, propriety and wisdom are not drilled into us from outside. We are originally provided with them. † (Chan) In light of the information presented herein, the theories of right and wrong are subject to cultural beliefs and moral individuality. It is my belief that subjectivity is most prevalent in making this determination.

Saturday, October 26, 2019

Explaining The Pumping Action In A Heart Physical Education Essay

Explaining The Pumping Action In A Heart Physical Education Essay The heart is the most important organ of the blood which keeps the other internal organs alive by supplying blood and oxygen hence making it a life maintaining organ. The objective of this essay is to explain the pumping action of the heart, transportation of oxygen by the cardiovascular system and how reduced blood flow can affect cardiac function. A treatment for this cardiac malfunctioning is also explained. I will begin the essay by explaining the anatomical structure of the heart and then explain how the pumping action of the heart. The second part of the essay will include how the reduction in blood flow can affect the cardiac function and finally a treatment to cure this problem will be explained. The heart is a life maintaining organ weighs almost less then a pound, barely the size of the fist and located in the mediastinum of the throracic cavity of human body. The shape of the heart is like a inverted cone which has a blunt tapered end that points to the left hip and the base pointing towards the right shoulder. The heart lies more close to the left that is nearly third of it and rest on the diaphragm in between the two lungs. This is shown in figure 1 which shows the location of the heart. Fig.1: Anterior view of the heart in the mediastinum The entire heart is covered by a dense fibrous tissue called the pericardium which comprises of a dense connective tissue called the fibrous pericardium which protects the heart from over stretching due to excessive filling, it also consists of the serous pericardium which forms deeper portion of the heart. The serous layer is further divided into the parietal layer which lines the outer layers the and visceral layer which lines the innermost layers of the heart. A fluid which reduces friction is present in the pericardial cavity that separates these parietal and visceral layers. The below figure (see fig. 2 ) shows the different layers of the the pericardium. Fig.2: The pericardium and the Heart wall http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=cardiopart=A1016rendertype=figureid=A1019 As shown in the above figure (see fig.2), the heart wall is composed of three different layers ; epicardium, myocardium and the endocardium. The epicardium which forms superficial layer of the heart wall consists of mainly adipose tissue. The endocardium forms the deeper layer of the heart and is filled with squamous endothelium and aerolar tissues. Between these two layers lies the myocardium which is made up of cardiac muscles that help in the contraction of the heart. Its relatively a thick layer as it helps the heart to perform its normal pumping action that is contraction and expansion of the heart at regular intervals. On the outer surface of the heart there many grooves and layers of fat called the sulci. The heart is divided into four chambers which has two inferior intermittent pumps which discharge blood out of the heart called the right and the left ventricles and two superior primer pumps called the right and left atria receiving deoxygenated and oxygenated blood from the body and the lungs respectively. The ventricles are separated from each other by a relatively thick muscle called the interventricular septum but atria are separated from each other by relatively a thinner wall called the interatrial septum as it has lighter workload comparing the ventricles. The right ventricle has thicker walls comparing the left ventricle because it has to pump more blood during systemic circulation. The presence of heart valves prevents the back flow blood and hence ensures that blood flows effectively in one direction. There are two types of valves which are the atrioventricular (AV) valves and the semilunar valves. The AV valves consists of the the tricuspid and bicuspid (mitral) valves th at are located on the right and left side of the heart between the ventricles and atria respectively. The semilunar valves on the other hand lie on the bases of aorta and the pulmonary artery. These valves consists of the pulmonary valve and the aortic valve. The tricuspid valve has thread like structures that are connected to tendon like cords called the chordae tendinae. The anatomical structure of the heart and the heart valves is shown in figure 3. Fig.3: The heart and the heart valves http://yoursurgery.com/ProcedureDetails.cfm?BR=3Proc=24 Blood Flow Through The Heart The blood flow through the heart is explained by the pulmonary and systemic circulation. Deoxygenated blood is drained into the right atrium by the superior and the inferior vena cava. The pressure in the right atrium increases forcing the tricuspid valve to open and hence draining the entire deoxygenated blood to the right ventricle. The volume of blood in the ventricle increases and the maximum volume of the blood in the right ventricle after the contraction of the right atrium is called end diastolic volume (EDV). EDV is generally about 140ml. As the tricuspid valve closes the pressure in the ventricles increases. During this phase the ventricles contract but the pressure is not enough for the pulmonary valve to open hence resulting in isometric contraction as a result all the heart valves are closed during this phase and the volume in the ventricles remains constant. As the pressure continues to increase comparing the right atrium the blood forces open the pulmonary valve and the deoxygenated blood is pushed into the pulmonary trunk that divides into the pulmonary arteries. After the contraction of the ventricle that is the systole, the amount of blood remaining in the ventricle is called the end systolic volume (ESV). The difference between EDV and ESV gives the stroke volume (SV) that is the blood pumped out of the ventricles during a single heart beat. The pulmonary arteries carries the deoxygenated blood to the right and the left lung for oxygenation. Once the blood is oxygenated it is returned back to the heart by the pulmonary vein. The pulmonary vein empties the oxygenated blood into the left atrium, hence completing the pulmonary circulation and as the pressure in this atrium increases the blood is drained into the left ventricle by forcing open the mitral valve. When the mitral valve is closed the the pressure rises again comparing the left atrium and the blood is pushed into the aorta by opening the aortic valve. This oxygenated blood is transport ed to various parts of the body to carry out haemodynamic activities ( which includes the exchange of oxygen and carbondioxide with the blood ) . The systemic circulation is completed once the deoxygenated blood is returned back to the right atrium from different parts of the body by the venae caveae. Fig.4: Pulmonary and Systemic Circulation of the heart http://academic.kellogg.cc.mi.us/herbrandsonc/bio201_McKinley/f22-1_cardiovascular_sy_c.jpg During the phase of the first diastole, the ventricular relaxation takes place as a result the semilunar valves are closed and also the AV valves are also closed during this time as a result the volume of blood in the ventricles remains constant, hence this phase is called the isovolumetric relaxation. The diagrammatic explanation of the cardiac cycle is explained in figure 5. Fig.5: The Cardiac Cycle http://academic.kellogg.cc.mi.us/herbrandsonc/bio201_McKinley/f22-11_cardiac_cycle_c.jpg Cardiac Conduction System In this system the pumping action of the heart is synchronised by the electrical activity of the heart. Electrical signals are generated by the sinoatrial (SA) node which is the bodies natural pacemaker. This node generates pulses that propagate throughout the right atrium and through the Bachmanns bundle hence stimulating both the atria. These pulses travel from SA node the to the atrioventricular (AV) node through certain paths known as internodal tracts. The AV node acts as a gatekeeper and prevents all the pulses to travel from the atria to the ventricles, hence causing some delay in the excitation. From the AV node the signals travel through the Purkinje fibres that divides itself into right and left and excites both the ventricles. This process repeats and the contraction of the heart takes place. Transportation of Oxygen by Cardiovascular System The cardiovascular system is a dense network of arteries, veins, capillaries etc. which is involved in the transportation of blood gases to and from the various parts of the body. In this part I will talking about how the cardiovascular system transports oxygen to different parts of the body. The oxygenated blood which is pumped from the left ventricle is transported by the aorta. The aorta is the largest artery of the human body which is made up of several layers of the elastin fibers and covered by smooth muscle. Blood flows in the arteries with high pressures hence these arteries expand (vasodilation) and contract (vasoconstriction) thus helping to regulate blood pressure. The aorta bifurcates into various different arteries smaller in size carrying oxygenated blood to different parts of the body. These arteries further divide into arterioles whose diameter is much smaller comparing the arteries and are less elastic. These arterioles are made up of thick layer of smooth muscles an d are controlled by the autonomic nervous system that control their diameter. Oxygenated blood now passes from the arterioles to the capillaries which are the functional unit of the cardiovascular system. Capillaries are responsible for the exchange of blood gases and other nutrients between different tissues and blood through the process of diffusion. As diffusion is the process by which gases or fluids flow from higher to lower concentration therefore at the capillary level the concentration of oxygen is more in the capillaries and on the other hand the concentration of carbondioxide is more in the tissue than in the capillaries therefore the diffusion of these gases takes place. Oxygen is diffused into the tissues and carbondioxide on the other hand is diffused into the tissues. This is how oxygen is transported to different parts of the body. This deoxygenated blood is collected from the venules which are connected to the capillaries. Theses venules group together to form veins. Hence this deoxygenated blood is returned back to the heart for oxygenation and the entire process is repeated. The entire process of the transportation of oxygen by the cardiovascular system is explained in figure 6 Fig 6: Blood flow and capillary exchange of oxygen http://www.patient.co.uk/health/Blood-General-Overview.htm Effects Of Reduced Coronary Blood Flow And Its Treatment Reduced coronary blood flow results in a condition known as ischemia where the myocardiac tissue is deprived of oxygen due to inadequate blood flow. The inadequacy is caused by formation of localised plaques of lipids that protrude within the artery causing a reduction in blood flow. As a result of reduced blood flow, there is a reduction in the level of oxygen which is required to carry out metabolic activities of the tissues. In ischemia the anaerobic respiration of the tissue results in the formation of lactic acid which leads to sever pain in the chest region. This pain is called angina pectoris. Angina pectoris is classified into two types; stable and unstable. Stable angina which causes pain in the chest region may arise from some physical activity ( running, jogging etc.). During these activities the need for oxygen is more to carry out metabolic activities in a faster rate compared to the supply of oxygen as a result anaerobic respiration of the tissues takes place and hence results in the formation of lactic acids which causes this pain. In unstable angina there is a persistent pain in the chest regions this is because of the accumulation of platelets on the ruptured plaques which leads to the blockage of the arteries and hence causing immense reduction in blood flow. Persistent unstable angina may cause myocardial infraction which ultimately may lead to sudden death. There are many ways to treat angina it may be either surgical or non surgical ways. Surgical methods include coronary balloon angioplasty where a catheter is passed into an artery with a balloon at the tip of the catheter. The balloon is made to expand causing the artery to expand and hence breaking of the plaque of lipids in the artery. Another types of surgical method is the coronary bypass surgery where the blocked artery is completely removed and replaced with a new one taken from different parts of the body. Non surgical methods include taking drugs that cause vasodilation such as ni troglycerin which converts into nitric oxide and hence dilates the coronary artery causing an increase in blood flow. Beta adrenergic blocking receptors are used to reduce the heart rate and therefore causing a reduction in cardiac output. Other techniques that involve the use of calcium channel blockers that are used for vasodilation and hence helping the flow of blood. Conclusion The heart is a an electromechanical pump which carries out its action through pulmonary and systemic circulation. The pumping action is well synchronised such that there is proper blood flow within the heart and outside to carry out haemodynamic activities. The transportation of blood is carried by a system consisting various networks that are spread throughout the body known as the cardiovascular system. This system helps in the transportation of oxygen to different tissues in order to carry out different metabolic activities. The exchange of oxygen between tissues and the cardiovascular system takes place through a process called diffusion. The effects of reduced blood are many and can lead to a condition known as ischemia. Angina pectoris is one of the main problems that can cause due to reduced blood flow and hence causing a sever pain in the chest region and on sever reduction in blood flow it may even lead to myocardial infraction which ultimately leads to death. There are nume rous treatments for curing this particular problem, it may be either through surgical methods which includes cardiopulmonary bypass and angioplasty or using drugs that increase vasodilation and decrease cardiac output. These drugs include beta receptors, calcium channel blockers and nitroglycerin.

Friday, October 25, 2019

Future Outlook of Trucking :: miscellaneous

Future Outlook of Trucking When you think of dangerous occupations, which ones come to mind? Do you think about the police officer who risks his life daily to protect persons and property? Or the firefighter who places the safety of others above his own? Those are dangerous professions, but based on the sheer numbers of lives lost, the single most dangerous profession is that of a truck driver. According to the U.S. Department of Labor, more truck drivers died while working in 2003 than the combined total deaths of police officers, loggers, construction laborers and aircraft pilots (Census of Fatal Occupational Injuries, 2003, page13). In addition to the danger of highway driving, there are increased health risks from poor diet, irregular sleep patterns, and lack of exercise. Some call truck driving â€Å"the loneliest job†, and for good reason. Weeks on the road away from family and children can stress the most even-tempered person. Combine that with delays at shippers and receivers, unsympathetic disp atchers and ill-timed breakdowns and you can see why driving is so stressful. Even with the risks associated with driving, truck driving is appealing because it is more than just a job. It takes a complete lifestyle change and requires a serious commitment to be a successful over-the-road driver. If you ask the average person to describe the job of a truck driver, you would probably hear it described in simple terms such as, â€Å"Truckers drive a truck and deliver freight†. If only it were as simple as that! Truck drivers have to wear several different hats. A driver must have some mechanical skills, good map reading skills, possess good time management skills, and have good people skills. A driver must possess a valid class "A" commercial driver’s license (CDL). CDL applicants must pass a general driving written exam, a class "A" exam and an air brake exam. In addition, CDL holders have the option to add endorsements to their license. Endorsements include the authorization to pull tankers, double and triple trailers, or haul hazardous materials. In addition, a driver must pass a driving test demonstrating driving ability, backing ability and parking skills. Furthermore, the driver must demonstrate a complete pre-trip safety inspection, verbally identify the pa rts of the truck, and describe possible malfunctions for each part. Truck driving requires specialized knowledge of airbrakes systems, securing and transporting hazardous materials, calculating and conforming to various state bridge laws and safely maneuvering a 70-foot, 40-ton vehicle in varying terrains, traffic and weather.

Wednesday, October 23, 2019

Greatest Gift You Can Give Essay

As I sat and observed the ticking clock, as I saw yet another day come to an end†¦ just like the ones before it had, I understood how precious time is. Here are a couple reasons why I think that; I’ve always believed that the greatest gift we can share with those we love is time. There are some things money just cannot buy, and in the long run our memories are far more valuable than any material goods we receive. There’s a reason why I always believed that the greatest gift we can share with those we love is time because memories have sentimental value that lasts you a lifetime. Having a Lamborghini and enjoying it one your own is only half as rewarding as having someone enjoy it with you. Sharing time with your loved ones, on the other hand, creates lasting memories that will always accompany you. After all, it is all about quality, not the quantity of the time with spend with others. There’s a reason people say money can’t buy happiness or money just cannot buy everything. Time is the greatest gift to give out because you can always make more money, but the people you care about won’t be around forever. Therefore, it is important to make the time for your loved ones. Once a person starts working full-time you can lose yourself in your job and begin living to work instead of working to live. This might result in you becoming rich but you miss out on the time you could’ve spent with the people you truly care about. To prevent this from happening it is crucial to have a balance between work and family life. To be truly happy and to have a fulfilling life you must pay close attention to time you spend accumulating material things and how much you spend with family and friends. â€Å"The greatest gift you can give someone is your time because when you are giving someone your time, you are giving them a portion of your life that you will never get back. † – Anonymous

Tuesday, October 22, 2019

The Fair Tax Act Of 2013 Essays

The Fair Tax Act Of 2013 Essays The Fair Tax Act Of 2013 Essay The Fair Tax Act Of 2013 Essay The Fair Tax Act Of 2013 Name: Course: Date: The Fair Tax Act Of 2013 Conditions Surrounding Of the Fair Tax Act The fair tax proposal is meant to eliminate the unfairness in the current tax system. The current taxation policy imposes more on the wealthy population than on the other people. This tax burden is so much to an extent that in 2007 almost half of the overall income taxes were paid by 5% of the richest population while 40% of the citizens did not contribute to the tax pool. This tax system is too discriminatory, and the fair tax would eliminate this deficiency by enabling the citizens to control their tax expenditure. This proposal is however facing criticisms on the basis that it is regressive, and it would make the poor poorer since they spend most of their income on consumption of basic goods. The rich are also going to be favored while the middle class increases its tax burden. This is because the incomes of the middle class will be charged at a higher rate than those earning extremely large amounts of income. This would result to inequality in the society. This taxation system would ease the tax compliance hence promote investments and savings. The prices are also expected to reduce since the businesses will cut down on their costs of production. The system reduces the amount of tax revenue collected, and this would result in a federal budget deficit since it does not also address reduction of government spending. The system would present a big challenge in the collection of taxes and this will lead to tax evasion. The housing sector will be affected negatively since it will no longer be favored. Historical Links Of the Taxation Policies The taxation policies have undergone various reforms over the years. Around 1817, the government relied heavily on tariffs and abolished internal taxes. In 1862, an Act was established to ensure the effective collection of taxes and powers given to the commissioner of internal revenue to enact taxation laws. The 16th amendment of 1913 made income tax a significant source of the nation’s revenue. This was presided by unfair taxation policies in the collection of these taxes under the influence of powerful and influential people, which worked in their favor. This resulted in seeking fair and effective methods of tax imposition to maintain equality among members of the public. The fair tax act was one such method which is a viable tax system designed to ensure fairness in taxation. It was first introduced by Linder to the 106th congress in 1999. Similar bills have continuously been introduced to the congress since then. Therefore, the fair tax act is not a new thing to the Americ an citizens. Various committees have been set up to discuss the issue, but the bill has never gone past that stage. The bill has mostly been supported by the republicans, but the democrats have been reluctant in embracing the system. The US president, Barrack Obama opposes the bill arguing that it does not bring progress to tax systems. Proposition for the Fair Tax Act The Georgia for fair tax is a group representing the views of business people in favor of the fair tax system. They propose that the businesses stand to benefit from the system. This is because it eliminates taxes such as corporate taxes that increase the production costs. This means that they will produce at a lower cost and therefore sell at a lower price to the customers. This will allow the businesses have a better ground for competition in the international market hence this promotes international business transactions. Business transactions are not taxed thus facilitating them. Because of the fairness in taxation, a fair ground is provided for all businesses regardless of their sizes. Elimination of payroll taxes promotes reinvestment hence economic growth. Rob Woodall is a congressional representative in favor of the fair tax system. He represents the 7th district of Georgia. He says â€Å"the reason for this is that the fair tax isn’t about simply taxes; it is about f reedom†¦Ã¢â‚¬  (Woodland, 2012). He insists it is a method of preventing over taxation. Fair tax system is the surest way of ensuring equity among citizens. His reason is that the system provides transparency in taxes collected. Similar rate of tax is charged on all goods purchased hence convenience in determine the exact amount of taxes charged on a certain amount of sales. It is of a simple structure and easy to understand unlike the current elaborate system that is too elaborate. The system eliminates allowances such as exemptions that make calculations very complicated and simply gives a simple rate of 23%. Ensures fairness in treatment of all citizens since a similar rate is charged on all kinds of goods regardless of the type. It would enable the realization of dreams among the people by minimizing the amount of taxes they pay from their hard work. It would offer freedom to the citizens and relieve the congress off its power to manipulate tax collection. This bill has ha d many sponsors who have taken a broad step in introducing it in various congress sessions. The greatest sponsor is John Linder who was the first to introduce the bill and continued to push for its adoption until his retirement. He even wrote a book, â€Å"The Fair Tax Book†, which explains his position in this system. He supports the fair treatment that it has to offer. Opposition One of the major opposers of the system is president Obama who supports a more progressive taxation system, which the system does not offer. Another group is the economists who represent the analytical population in the country. â€Å"FairTax is too good to be true, and voters should not take seriously any candidate who supports it† (Bartlett, 2007). There is a great risk in implementing this system. It encourages the reduction of the amount of taxes paid by citizens. This will mean that a lower amount of overall taxes will be collected by the government. It does not provide a method to cut down on the government expenditure. This results in a budget deficit. This deficit is not healthy for an economy since the government will have to adopt alternative measures to finance its expenditure. One of the financing alternatives is borrowing of funds that can be done internally or externally. This eventually translates into accumulation of debts. This hinders the economic growth of a country and reduces its credibility to the outside world hence the government will have problems in qualification of loans in the end. This will result in a government that spends what it does not have and relies on handouts for survival. Social Justice Social justice is the practice of maintaining equality and cohesion in a society by maintaining a balance in treatment of various social classes (younkins, 2000). The fair tax act is an issue of social justice since its effect has major effects on the social structure of the society. It is a progressive tax system meaning the poor pay lesser than the rich. Heavy taxes are charged on the poor and the amount collected is used in providing services for the society. This shows maintenance of balance among all the citizens and reduces the gap between the poor and the rich. This system also ensures fairness since taxes are charged on goods that all members of the society consume meaning every citizen will contribute to the taxes and regulate the amount of taxes paid through regulating consumption. Reference Bartlett, Bruce. (August 25 2007). The deceptive presentation of the fair tax proposal. Economist’s view. Retrieved from http://economistsview.typepad.com/economistsview/2007/08/the-deceptive-p.html Younkins, Edward W. (September 30 2000). Taxation and Justice. Capitalism and Commerce. Retrieved From quebecoislibre.org/000930-11.htm Woodland, Rob. (2012). The Fair T Woodland Ax. Congressman Rob Woodall. Retrieved From http://woodall.house.gov/issue/fairtax

Monday, October 21, 2019

M. C. Escher essays

M. C. Escher essays M. C. Escher was born in 1898. He was born in a small suburb outside a southern town in the Netherlands. he was greatly known for his surreal artwork done between 1930-1970. M. C. Escher's artwork could play tricks with the human eye. many of his artwork was used by scientist. They marveled at his logic and used his work to prove their theories. Some of his drawings could not be physically made, which added a sight twist to modern day art. M. C. Escher had his own unique style of art. Using mostly black and white he created amazing masterpieces. His favorite style of artwork was mind games and optical illusions. the general mood one gets when gazing at the artwork is an overall theme of confusion. However, there is no hidden meaning in this artwork. Queen Wilhelmina ruled over the Netherlands while Escher was alive. She then gave her throne to her daughter Juliana. M. C. did not have a sponsor, he had to provide for himself through the good times and the bad. he was very well received during his lifetime and people bred his artwork. M. C. Escher's father was a civil engineer. When Escher was very young his parents discovered he had a talent for drawing. So he went to school to study at the school of Architecture and Decorative arts in Harlem. he gave this up when he was 21 years old because he only wanted to focus on art. ...

Sunday, October 20, 2019

Factors that influence Major League and Minor League Baseball

Factors that influence Major League and Minor League Baseball Introduction The field of games is a rather demanding area that calls for a fair deal of devotion if one is to succeed in it. Games come in different categories. However, inasmuch as each category wishes to attract fans based on its records of fabulous performance, it is crucial to note that various factors boost and or lower the performance.Advertising We will write a custom research paper sample on Factors that influence Major League and Minor League Baseball specifically for you for only $16.05 $11/page Learn More The paper narrows down to the baseball game. Major league and minor league baseball attendance are affected by a myriad of factors ranging from the motivational factors that attract fans, to ticket pricing. In between these two extremes, scholarly works have shown a number of factors to be significant in influencing the attendance in baseball matches. Meehan, Nelson and Richardson (2007, p.572) sheds light that, â€Å"A host of factors influenc es the demand for sports, including the price of tickets, fan income, the population of the drawing area, team quality, and the age of the stadiums in which teams play†. Other factors include crowd control, parking, and concession. These factors are what researchers  have referred to as environmental factors. Fans of a given sport differ enormously from fans of another sport and hence the factors that affect their attendance in the matches are widely controlled to a different extent by the same factors. What this means is that one factor may have positive effects in drawing the spectators to cheer up a given match while in a different sport, it may produce the opposite effects. With this in mind, this paper introspect the factors that affect sports attendance with reference to principal and minor baseball league. The complexity and magnitude of promotions and marketing of entertainments products during the matches ardently influence major baseball leagues. Other factors that are given consideration in the paper includes but not limited to team quality, top prospects, ticket pricing, prospects of terrorism, influence of international players and location of base ball facilities. However, these factors widely act in a combination mode and hence they influence attendance compositely. Major and minor baseball league attendance Promotions Various scholarly works have confirmed promotions to increase attendance of baseball contests. Various types of promotions, however, influence attendance differently. As Gitter and Rhoads (2011, p.345) claim, â€Å"While price promotions affected attendance negatively in all clubs, non-price and combinations of promotions were associated with an increase in attendance for all teams.†Advertising Looking for research paper on health medicine? Let's see if we can help you! Get your first paper with 15% OFF Learn More Butler conducted a study of determinants of the minor games attendance in 2006 Carolina baseball league. The analysis of the study predominantly focused on the effect of different promotions conducted during the game day, as opposed to promotions conducted throughout the season. In this regard, Butler (2002, p.328) posits that, â€Å"The operation of Major League Baseball (MLB) teams is a remarkably complex enterprise involving the marketing of a diverse multi-dimensional entertainment commodity. Apart from promotion of concession products: soft drinks, hot dogs and the likes, promotion of home teams tickets increases the attendance for home teams fans. Increased buying power goes hand in hand in the provision of the positive response to promotional campaigns. Arguably, the demand for tickets and hence the attendance during minor baseball leagues is impeccably affected by income per capita. Butler (2002, p.328) reckons that, â€Å"the higher the per capita income in the host county (or host city) for a minor league team, the greater demand for tickets in th at county.† Attendance for minor base ball league, consequently, is a function of factors that affect the demand for the home team tickets and the factors that impede the promotion of the home team entertainment products. Using the data generated form Carolina baseball league attendance in the year 2006. Butler (2002, p.334) found out that â€Å"attendance, expressed in relative terms as a number of persons in attendance as a percent of stadium capacity was directly related to the per capita income of the county or the city of the host team†. The attendance was also a function of the other benefits such fare deals of foods and drinks products. Reduction of food and drinks prices sold during the matches and other products for home teams such as caps, T-shirts are promotion endeavors, which have a tremendous capacity to draw a substantial volume of attendance (Gifis, 2006, p.513). Scheduling the games on Saturday and Fridays has also the capacity to increase attendance. C onsequently, given the capacity of the promotions to increase the attendance, combining the two has an ability to raise the attendance even more. Team quality Team quality affects not only major league baseball attendance, but also minor league attendance. According to Gitter and Rhoads (2010) â€Å"there is evidence that minor and MLB are substitutes as increased ticket prices for the nearest MLB team lead to higher minor league attendance if that team is within 100 miles† (p.620). Most fans interpret quality of the team as reflective of its performance. Maintained satisfactory performance stands a perfect chance of increasing the team’s attractiveness before the eyes of its supporters.Advertising We will write a custom research paper sample on Factors that influence Major League and Minor League Baseball specifically for you for only $16.05 $11/page Learn More A study conducted by Greenstein and Marcumin 1982 revealed that major baseball att endance was a function of win-loss record in previous matches (Kahane Shmanske, 1997, p.427). In the variance of attendance, 25% of it was accounted for by the team’s record of performance. Attractiveness or rather the quality of the team plays pivotal roles in making the decision to attend. Arguably, the fans of given Baseball team whether in major or minor leagues attend games to celebrate the winning of their team. In case a team has been recording losses more than wins, most of the fans will tend to shun from attendance since they do not want to be part of loss. This perhaps leads to the appreciation of the significance of considering the team’s quality in determining the attendance of major and minor Baseball league. As Kahane and Shmanske (1997, p.434) reckon, â€Å"The attractiveness of the visiting team (its quality, the presence of star players, the strength of its rivalry with the home team, etc.) is a second crucial factor in fans decision making about gam e attendance† (p.40). Congruent with this view, if a visiting team has recorded a negative record in terms of performance, most likely the home team fans are likely to attend in large numbers even though the visiting team might have not held contests previously with the home team. According to Gitter and Rhoads (2010) â€Å"†¦local or regional MLB team’s winning percentage only has a positive impact on minor league attendance when they are affiliated clubs† (p.614). Thus, it is plausible to argue that affiliation of teams coupled with fans perceptions about their team’s quality has an impeccable influence in determining whether to attend or not to attend a major or minor Baseball league competition. Top prospects The existing enthusiasm among fans to see the future baseball star contributes to increased attendance during the minor leagues. According to Gitter and Rhoads (2010), â€Å"Baseball America, a leading industry publication, ranks 100 top pro spects that have yet to play substantially in the principal leagues† (p.614). For a whole year, the one hundred prospects develop within their localities before taking part in major leagues. Fans attend baseball minor leagues driven by enthusiasm to have a glimpse of the likely star to take part in the major leagues. The study conducted by Gitter and Rhoads claims that â€Å"only those prospects ranked in the top five and the highest AAA have an impact on their team’s attendance and their impact on attendance is small† (2010, p.615). From these results, it follows that for those stars rated least in the Baseball America ranks for top 100 prospects have little capacity to draw fans attention and hence attendance during their minor base ball leagues.Advertising Looking for research paper on health medicine? Let's see if we can help you! Get your first paper with 15% OFF Learn More Arguably, this is perhaps because the majority of the fans interpreted the ranking as likely indication of how such prospects would perform during the matches. This argument consequently takes us to the idea that fans would like to be associated with winning teams rather than losing teams. Since motivation is essentials in any game, the best prospects have the ability to produce baseball stars during the major leagues. Fans produce this motivation since their large attendance serves to give the players the belief that they are the best in the ranking as put forward by Baseball America. It is somewhat subtle to argue that, if top prospects can increase minor league attendance, them if these prospects happens to participate in the major league then, there is no doubt that the attendance will also be high. Unfortunately, this argument tend to infer that only those that who are ranked high by Baseball America have the chances of being Baseball stars during major leagues. Even though, th e ranking of baseball prospects by Baseball America may increase the attendance percentage according to various scholarly studies, the increment is minimal. According to Gitter and Rhoads (2010), â€Å"minor league Baseball player ranking by Baseball America as top prospects increases attendance for minor league team by a minimal amount (less than 2%)† (p.621). However, even though this increment is small, its contribution to sporting facilities revenues increment is quite significant. This is particularly pertinent since most of this revenue goes into improvement of sports facilities. In fact, new facilities have indicated their ability to increase attendance of fans both in minor and major baseball leagues (Roy, 2008, 146). Fear of Terrorism Sporting facilities are crucial targets of terrorist activities. Consequently, various sporting managers anticipate all range of consequences in term of fans attendances especially with increased perceptions and fears of terrorism activ ities. Kalist (2010) laments that, â€Å"sports venues may experience falling ticket sales as the public becomes more concerned about the threat of terrorism† (p.181). Increase of terror alerts results to escalation of reduction of Baseball fans attendance. Kalist reckons that â€Å"during the early days of the nations first-ever increase in the terror-alert level (i.e., rose from yellow to orange) attendance decreased by as much as 12%. A back-of-the-envelope calculation suggests that a team may have lost more than a half million dollars in attendance revenue† (2010, p.181). However, this suggestion faces incredible opposition since the most recent terror alerts has not been positively reflected into a reduction of fans attendance. The researchers of study conducted it in a time perhaps when people were not used to terror attacks threats by the ministry of state security. This is largely because most of the terror attacks threats hardly success. Terror attacks threats that do not materialize. They make the public to lose confidence for government’s announcements of likelihoods of terror attacks. However, sporting facilities remain outstanding targets for terror attacks perhaps due to high anticipations of a large crowd turnout. In fact, â€Å"he Federal Bureau of Investigation (FBI) has made repeated statements about terrorist interest in stadiums† (Kalist, 2010, 189). Convenience and security are perhaps two factors that fans establish tradeoffs. Inadequate security has the capacity to annoy the fans to the level that they may choose never to attend again in the future. This is argument is perhaps more significant and applicable to people who have encountered insecurity instances at one or more attendances. Fears of terrorism have additionally resulted in the increment of insurance costs. For economic reasons, the owners of the stadiums have to extend this cost to the fans in terms of increased tickets, prices. Feeling of insecuri ty fueled by fears of terror attacks affects major and minor baseball leagues attendance negatively both in terms of increase in ticket prices and the need to refrain from places that one is likely to be afflicted by aftermaths of the terror attacks. International players The United States does not dispute the incorporation of foreign players into the Baseball teams. It is widely acceptable among sporting scholars that fans initially attended tournaments to celebrate the achievements of people they regarded as ‘their own’. Does the incorporation of foreign players in the baseball team affect the attendance of the fans? Tainsky and Winfree (2010) demonstrated â€Å"how traditional studies of consumer’s discrimination can be applied to gauge the impacts of international players in sports† (p.126). According to Tainsky and Winfree, the incorporation of a foreign player not only resulted to discrimination amongst the MLB teams players but also affected the tea m’s quality. However, â€Å"the net effect of additional international player has evolved with time from negative to positive† (Tainsky and Winfree, 2010, p.126). More and more fans continue to develop the sense of internationalism. Hence, their attendance in response to incorporation of international players in major Baseball leagues also increases lineally. This is, in fact, immensely vital since as Tainsky and Winfree (2010) reckon, â€Å"MLB, have actively tried to become more international by signing international players or scheduling more games outside the United States† (127). Perhaps also with appreciation of the need to incorporate the international players in the MLB teams, MLB deploys incredible endeavors to advertize base ball tournaments in other languages apart from English. As Tainsky and Winfree (2010) argue â€Å"†¦domestic demand is not affected by international players† (p.127). Opposed to long gone perceptions, global perceptions have resulted to immense alteration of fans regards about international players in the MLB. Furthermore, Tainsky and Winfree (2010) indicate, â€Å"The largest negative change in revenue from an international player came in 1985 with a loss of $731,875. In 2000 when the effect peaked teams increased their revenue by $595,632 from an international player†¦Ã¢â‚¬  (p.127). Based on people’s arguments, increased arise from increased attendance. Location of the major league Location influences the attendance of fans in the Baseball tournaments especially the major leagues. Location is significant since it influences other factors such the capacity of the fans to commute. The influence of location to attendance of major Baseball league concerned Winfree, Mittelhammer and Fort who conducted a â€Å" travel-cost model to analyze the attendance impacts on major league baseball (MLB) of the closest substitute MLB team† (2004, p.2117). Majority of the Baseball leagues own ers complains of the probabilities of experiencing uncertainties in terms of finance in future attributable to imbalances of competition problems. As part of the solution to these problems, people have stood an excellent chance of  making many proposals. One of them is that â€Å"MLB should allow owners to move their teams, especially to larger markets to reduce the imbalance† (Winfree, Mittelhammer Fort, 2004, p.2117). One question surface: Does change of location by virtues of relocating a major Baseball facility to a market with more financial capacity help increasing attendance and hence the revenues to the owners of the facilities? Location carries within itself many other factors that might influence attendance such as the existence of other Baseball teams within the area that might acts as substitutes that would have the net effect of reducing the attendance of a certain MLB. Location is significant in the evaluation of factors that influence the attendance since tr avel cost entangles a cost that Baseball fans have to meet. Arguably, if location needs to be significant, then in case there are two facilities within an area that offers equal utilities amongst fans, then it is widely anticipated that the fans would choose to attend the tournament that is closest to them. In this context, it â€Å"implies that attendance lost to a substitute team should be a functions of the distance to that other substitute† (Tainsky and Winfree, 2004, p.2118). Now, it is essential to ask ourselves how prominent location is in comparison to fans loyalty to their teams. From a different dimension, it is crucial to look at the location and its impacts to the attendance of Baseball leagues as a function of other factors that influence the same. Tainsky and Winfree, (2004) posits that â€Å"The utility of a Baseball fan is a function of the number of visits to baseball stadiums, the quality of the teams, the quality of those stadiums, as well as all other goo ds consumed† (p.2118). It is thus worth to argue that, the dominant factor among all these factor wins in terms of contributing and controlling the fans decision to attend a given Baseball competition. Tainsky and Winfree finding claim, â€Å"A travel cost model is used to explain attendance for MLB teams, 1963–1998. At the sample average variable values, a one-mile increase in distance to a substitute MLB team increases attendance by about 1544 fans† (2004,p.2123). These results indicate that in case a substitute team emerges within the vicinity of an existing team, the attendance of the first team is likely to reduce. However, when this teams assume their market share of fans, â€Å"ongoing attendance impacts are small, even when a team might be placed fairly close to another† (Tainsky and Winfree, 2004, p.2123). Bearing in mind the economic consequences change of the location can have on the fans’ attendance, change of location should encompass o ne of the things that owners of Baseball facilities needs to consider before attempting shift the location of their facilities. However, this does not disregard out the weight of other factors that may contribute towards pre-bargaining for the need of relocation. This is largely justifiable since a good number of fans can be willing to attend tournaments of Baseball teams to which they have developed incredible loyalty towards no matter the commuting costs. Ticket pricing Sport teams have three principal sources of income. These sources are â€Å"sales, of media rights, concession sales and ticket sales† (Meehan, Nelson Richardson, 2007, p.572). As a way of ensuring that sport teams have maximized their profits, the team’s owners need to be in possession of ample knowledge about the relationship, between the attendance and the pricing of the tickets. Pricing tickets at higher prices, from the most general dimension and given that the demand is inflexible, means increa sed revenues and hence profits. On the other hand, increased attendance, even without necessarily increasing ticket prices, means increased revenues. However, is it possible for demand to be inflexible even in the helm of increased ticket prices? As Meehan, Nelson and Richardson (2007, p.572) posit, â€Å"A host of factors influences the demand for sports, including the price of tickets, fan income, the population of the drawing area, team quality, and the age of the stadiums in which teams play†. Each of these factors has different impacts on the attendance. For instance, Meehan, Nelson and Richardson (2007, p.574) claims that â€Å"the sensitivity of attendance to changes in the price of tickets (the elasticity of demand) and to changes in average incomes (the income elasticity) may vary from team to team†. Meehan, Nelson and Richardson’s study investigated 23 MLB teams in 1970 to 2003. They deployed series data to make them be at a point to pin point on certa in factors that had a direct influence on the attendance of Baseball leagues. To this extent, ECM (error correction model) came in handy. The results of the study indicated that ticket pricing was amongst the factors that affected the attendance in the baseball league. Their results contend with other scholarly studies that â€Å"MLB ticket prices are set in the inelastic range of demand† (Meehan, Nelson and Richardson 2007, p.577). Setting ticket prices in any elastic range of demand has the effect of reducing demand and hence revenues in case any adjustments are made on the ticket prices. This is perhaps necessary for the purposes of ensuring that ticket pricing does not result to dwindled demand. Reduced demand is a substantial impediment towards ensuring increment of baseball facilities profitability. Conclusion A number of factors affect the attendance of fans in both major and minor baseball leagues. These factors range from incidences of voicing likelihood of terror at tacks, team quality, top prospects, ticket pricing, and influence of international players, promotions and location of Baseball facilities. Before making any policy, the Baseball facilities owners, consequently, need to put all these factors into consideration since they affect the attendance of the fans differently. This goes hand in hand in determining the future financial position of the Baseball clubs. Reference List Butler, M. (2002). Interleague Play and Baseball Attendance.  Journal of Sports  Economics, 3(4), 320-334. Gifis, L. (2006). Promotions and Attendance in Minor League Baseball. Atlantic  Economic Journal, 34(4), 513. Gitter, S., Rhoads, T. (2010). Determinants of Minor League Baseball Attendance. Journal of Sports Economics, 11(6), 614-628. Gitter, S., Rhoads, T. (2011). Top Prospects and Minor League Baseball Attendance.  Journal of Sports Economics, 12(3), 341-351. Kahane, L., Shmanske, S. (1997). Team roster turnover and attendance in major League Base ball. Applied Economics, 29(4), 425-431. Kalist, E. (2010). Terror Alert Levels and Major League Baseball Attendance. International. Journal of Sport Finance, 5(3), 181-192. Meehan, J., Nelson, R., Richardson, T. (2007). Competitive Balance and Game Attendance in Major League Baseball.  Journal of Sports Economics, 8(6), 563-580. Roy, P. (2008). Impact of New Minor League Baseball Stadiums on Game Attendance. Sport Marketing Quarterly, 17(3), 146-153. Tainsky, S., Winfree J. (2010). Discrimination and Demand: The Effect of International Players on Attendance in Major League Baseball. Social Science Quarterly, 91(1), 117-128. Winfree, J., Mittelhammer, R., Fort, R. (2004). Location and Attendance in Major League Baseball. Applied Economics, 36(19), 2117-2124.

Saturday, October 19, 2019

Greenhouse gasses Essay Example | Topics and Well Written Essays - 750 words

Greenhouse gasses - Essay Example Some greenhouse gases originate from natural sources. Typical, evaporation adds water vapor into the atmosphere. Animals release CO2 when they breathe, or respire while methane is released from some low-oxygen environs naturally, such as swamps. In the other hand, nitrous oxide is formed by certain processes in water and soil. Volcanoes - both under the ocean and on land - release greenhouse gases, hence periods of high volcanic activity level tend to be warmer. From the time of the Industrial Revolution in the late 1700s to early 1800s, mankind have been releasing large amounts of greenhouse gases to the atmosphere (King, 2010). That amount has rose steeply in the previous century. Greenhouse gas emissions augmented by 70% between 1970 and 2004. CO2 emission, the most significant greenhouse gas, rose by around 80% during that time. The quantity of atmospheric CO2 today far exceeds the normal range seen over the previous 650,000 years (Steinberg, 1998). Big amount of the CO2 that human being put into the atmosphere originates from burning fossil fuels. Vehicles, trucks, trains, machinery, and planes all combust fossil fuels. Most electric power plants do, also. Another way humans discharge CO2 into the atmosphere involves by cutting down trees, because trees hold large amounts of carbon through photosynthesis. People increase methane to the atmosphere by livestock farming, landfills, and relic fuel production such as natural gas processing and coal mining. Nitrous oxide comes from fossil fuel burning and agriculture. Fluorinated gases include hydro-chlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs) and chlorofluorocarbons (CFCs). These gases are used in refrigeration and aerosol cans (Steinberg, 1998). All of these human practices add greenhouse gases to the Earth’s atmosphere. As the level of greenhouse gases rises, so does the Earth’s temperature. The rise in Earth’s

Friday, October 18, 2019

Ecological Economics Essay Example | Topics and Well Written Essays - 2500 words

Ecological Economics - Essay Example Hanley et al. (1996) argues that it is only when people satisfy their financial needs that they remember the non-renewable characteristic of natural resources. The problem in the Niger Delta escalates as a result of humans focusing on the economic gains derived from exploitation of the oil reserves, disregarding the consequences on environment. The petro-business is a significant source of government revenue. Oil extraction largely affects the environment through oil spills from the high pressure pipelines that cross through the villages. The inhabitants of these villages are aware of the dangers posed to their health by the oil spills and also know that the companies involved reap huge benefits from the oil business (Ibeanu, 2000). They are aggrieved by the fact that they do not get a share of what they believe are their own resources. Environmental pollution and injuries on the community members result from the activities of the petroleum companies, which emphasize on their right t o extract the resources without disturbance especially considering the industry’s contribution to government revenue. People use natural resources the way they do because of varied reasons especially if the goods serve the interests of more than one group. Unless there are rules to curtail the overuse of the resources, there is usually a high risk of depletion (Acheson et al. 2006). The owners of the oil companies believe that they have a right to extract oil because they contribute a great deal to the economy.

Pros and cons of outsourcing IT security Essay Example | Topics and Well Written Essays - 1250 words

Pros and cons of outsourcing IT security - Essay Example In this paper IT related outsourcing shall be dealt with in relation to various pros and cons that it has on a big company. Proponents of this mode of operations have put forth quite a number of the advantages that befall a major company. They have argued that for contemporary management the question should not be on whether to outsource or not but how much to outsource as IT related functions are many and some may pose huge challenge or more security risk than others. The following are some of the major advantages that a major company will face: A large company’s IT department is usually huge and having many projects to run. At times these departments are regarded as contributing to the organisation less than they consume. Huge IT departments are cumbersome to operate and outsourcing will ensure that the company is able to operate in a better way than before as argued by Frank (2009). Outsourcing firms also offer consultancy on how to best handle internal controls and in this case in relation to IT related operations thereby in the end ensuring that the company is in a better position to control its IT functions. Outsourcing in many cases acts as a cost cutting measure and with the current trend for many large companies to go the downsizing way, it has become a popular avenue. Outsourcing leads to a company needing less staff, less space and time says Tho (2005). This in totality brings efficiency in the general operations of the company. A large firm will most likely refer its IT functions to a highly competent vendor thereby ensuring high quality IT services. This high quality is coupled with lower costs as bulk contracts attract better contractual deals. The IT sector is one that is quite volatile and as time passes new technologies emerge. These advancements at times can be quite rapid that the company may not be in a position to adopt it as fast. This may be related to financial constrains or

Comparing and Contrasting Two works of Art Essay

Comparing and Contrasting Two works of Art - Essay Example These two works of art have a couple of similarities regarding their identity. The two effigies contain inscriptions. The Babylonian piece contains groups of laws. Similarly, the Roman column encompasses figures as well as an engraving that gives a remark so people can make sense of the structure. It talks about the people of Rome dedicating the image to Caesar. Moreover, the engravings were created following a certain order. The decrees were written in respect to the social status of the people. For instance, the rulings specified how a certain sanction will be applied to a noble citizen or to a slave. The column also has divisions in its carvings. The depicted wars were split into the two battles. The upper part portrays the war with the Dacians from 101 AD to 102 AD whereas the lower part showed what transpired from 105 AD-106 AD. Though their observable contents are dissimilar, their underlying theme is the same. The Code sought to honor Hammurabi’s wisdom and views on jus tice. Likewise, the Column commemorated the excellence of Trajan’s warfare skills. On the other hand, the differences regarding the statues’ identity are the material, artists, dating, and themes depicted. The artist responsible for the Code of Hammurabi’s construction is not yet verified since it is among the ancient works. It was found in 1901 by Gustave Jequier. He was an Egyptologist who was in an expedition. Nonetheless, the Column of Trajan was most likely overseen by Apollodorus, the known architect from Damascus. Furthermore, the material used in creating the legal code was a crude stone slab. Other duplicates of the manuscripts were found in other places (Freely, 2000). They were imprinted on tablets made of baked clay. Another copy of the Code is on a diorite stele and it is currently in The Louvre. The index shaped structure features an almost complete version of the laws. Regarding the Roman triumphal column, it is mainly made of marble (Lancaster, 1 999). The hollow beam consists of Carrara marble drums. Spiral stairs occupy the center. The huge edifice stands 30 meters or 98 feet high. The gap between the two works of art regarding their period is quite discernible. The Code came centuries before Trajan’s column. Their respective features speak of differences of craftsmanship that reflect the civilization of their times. The subsequent erection characterizes finer and more advanced craftsmanship. They also have distinctions as to their manifest content. While the Code of Hammurabi concentrates on what is accepted and what is not in their society, Trajan’s Column focuses on the settings that represent crusades against their enemies. A total of 2500 figures were found. Most of them were soldiers, priests, and soldiers. The emperor was illustrated 59 times. The 282 laws encompass conditions on trade, slavery, conducts, religion, and others (King, 2005). One of the most common decrees found in the slab is â€Å"an e ye for an eye† (Prince, 1904, p.602). The sanctions reflect how restrictions, punishments, and authorizations were being facilitated. Concerning the similarities of style, the two pieces are both realistic and geometrical. The king’s proclamations are credibly inscribed on the tablets and steles. Correspondingly, the column displays the realistic activities of the individuals organizing and involving in clashes. Particularly, Trajan’

Thursday, October 17, 2019

Descartes First Meditation paper and Moore's Certainty paper Essay

Descartes First Meditation paper and Moore's Certainty paper - Essay Example Descartes work was centered on the issues that challenge one’s ability to be certain about something. His path to establish certainty begins a state of doubt. It is this doubt that prompts him to choose to demolish all the knowledge he had in the past (Descartes 87). He will then start afresh through testing the validity of things before being certain of their existence. He searches to establish a foundation of philosophy that cannot be shaken. This is because much of the knowledge he obtained in the past was through senses that at times are deceptive. In this he highlights, it is somehow difficult to distinguish when one is asleep and when awake. He majors on meditation, which is regarded as a philosophical classic. However, he provocatively pursues the issues to do with these important matters. Provocatively, Moore challenges the argument concerning ones inability to know whether he is dreaming. In the logical inversion of Descartes argument, Moore argues that, if one knows not that he is dreaming, one knows not that he standing. Additionally, people is unsure of his standing and realize that he is not hallucinating, (Moore 30). This is logical since one can only dream when asleep. Additionally, one can be dreaming or think he is standing and in actual sense, he is standing. This is the only case where dreaming and thinking to standing and standing at the same time is consistent. Moore’s concern on external world’s existence is evident. Given the reality, it is impractical to prove its existence. According to him, so many oppositions can, be used to prove the existence of the external world. In his illustration to demonstrate the fact about the existence of the world, he uses his hands. For instance, when he holds up his hands, it is certain that he is holding up his hands. The conclusion from the above illustration shows it is true that he has hands. If it has truth in it, more illustrations are also true. About external world issue, similar proofs can be used to tell the existence of it (Kim and Sosa 30). While Descartes says that dreams have taken place, he not sure he is dreaming. This is to mean that he does not know that the dreaming has taken place. In evaluating Descartes ides, â€Å"doubt† and â€Å"thinking† brings inconsistency the ideas. Descartes is unsure of his existence, although he thinks he does. The reason validating his doubt is that he may be dreaming or is being deceived by a demon that he exists. The reason for him to think he exists is th at he is only thinking without any objective proof of his existence. The proof about his existence is only subjective. He is unable to convince others of his existence, (Moore 34). Descartes argument has weaknesses and strengthens. He says that all things he knew as truth in his childhood have been falsehoods. This is a weak argument because; lack of proof cannot guarantee one to assume it is false. He later justifies his attempt to ruin that entire truth he had known over years and started afresh. He wanted something that had a strong foundation that did not rest on mere assumptions and feelings (Descartes 87). This is quite right to be passionate to do away with former opinions unless tested to be true. Additionally, he says not all the ideas and information he has is false. He makes an excuse that, for the opinions that he is not certain with, he will not touch on them. This gives a loophole for doubt and uncertainty. To assess which opinions are not certain would be a tedious jo b; therefore, he will not go through

Infosys and levendary cafe case Study Example | Topics and Well Written Essays - 500 words

Infosys and levendary cafe - Case Study Example The functions though many are seemingly well coordinated (though not without challenges) and this is as a result of good and effective leadership starting from the former Chief Executive Officer (CEO) Howard Leventhal. With the division of the cafà © into functions, allocation of tasks is easier since there are smaller groups to manage and monitor increasing effectiveness and thus making even the cafà © win awards. The cafà © assumes that having a customer-personalized approach would lead to loyalty and eventually the company making profit which has worked since customers enjoy this approach and become loyal to the organization. Levendary had its values in an excellent customer service and this also formed the norm of the cafà ©. The other norms include speed of service and order accuracy. In experimenting with local menu, they won an award for the cheese soup. One of the values of Levendary cafà © is customer’s comfort and loyalty and this has previously been achieved through having a customer-dictated menu, the signature soup and salads and wooden chairs. This has been ignored in some Chinese cities like Beijing’s Forbidden City and Shanghai’s Yu Garden which is challenging the organizational culture of the cafà © (Bartlett and Arar 8). The company management assumes that having higher value added services will make them achieve competitive advantage in the Indian IT market and also start being recognized internationally. Its main values include transparency, having effective leadership, customer delight, integrity and fairness. Its main norm includes having frequent meetings to be updated and brainstorm on new ideas of making their company excel and the other is employee satisfaction. Its main artifact is embedded in its brand equity. Hofstede’s cultural dimension explains four dimensions of cultural values. The most applicable of these values is the individualistic-collectivist dimension which seeks to compare the two when it comes

Wednesday, October 16, 2019

Comparing and Contrasting Two works of Art Essay

Comparing and Contrasting Two works of Art - Essay Example These two works of art have a couple of similarities regarding their identity. The two effigies contain inscriptions. The Babylonian piece contains groups of laws. Similarly, the Roman column encompasses figures as well as an engraving that gives a remark so people can make sense of the structure. It talks about the people of Rome dedicating the image to Caesar. Moreover, the engravings were created following a certain order. The decrees were written in respect to the social status of the people. For instance, the rulings specified how a certain sanction will be applied to a noble citizen or to a slave. The column also has divisions in its carvings. The depicted wars were split into the two battles. The upper part portrays the war with the Dacians from 101 AD to 102 AD whereas the lower part showed what transpired from 105 AD-106 AD. Though their observable contents are dissimilar, their underlying theme is the same. The Code sought to honor Hammurabi’s wisdom and views on jus tice. Likewise, the Column commemorated the excellence of Trajan’s warfare skills. On the other hand, the differences regarding the statues’ identity are the material, artists, dating, and themes depicted. The artist responsible for the Code of Hammurabi’s construction is not yet verified since it is among the ancient works. It was found in 1901 by Gustave Jequier. He was an Egyptologist who was in an expedition. Nonetheless, the Column of Trajan was most likely overseen by Apollodorus, the known architect from Damascus. Furthermore, the material used in creating the legal code was a crude stone slab. Other duplicates of the manuscripts were found in other places (Freely, 2000). They were imprinted on tablets made of baked clay. Another copy of the Code is on a diorite stele and it is currently in The Louvre. The index shaped structure features an almost complete version of the laws. Regarding the Roman triumphal column, it is mainly made of marble (Lancaster, 1 999). The hollow beam consists of Carrara marble drums. Spiral stairs occupy the center. The huge edifice stands 30 meters or 98 feet high. The gap between the two works of art regarding their period is quite discernible. The Code came centuries before Trajan’s column. Their respective features speak of differences of craftsmanship that reflect the civilization of their times. The subsequent erection characterizes finer and more advanced craftsmanship. They also have distinctions as to their manifest content. While the Code of Hammurabi concentrates on what is accepted and what is not in their society, Trajan’s Column focuses on the settings that represent crusades against their enemies. A total of 2500 figures were found. Most of them were soldiers, priests, and soldiers. The emperor was illustrated 59 times. The 282 laws encompass conditions on trade, slavery, conducts, religion, and others (King, 2005). One of the most common decrees found in the slab is â€Å"an e ye for an eye† (Prince, 1904, p.602). The sanctions reflect how restrictions, punishments, and authorizations were being facilitated. Concerning the similarities of style, the two pieces are both realistic and geometrical. The king’s proclamations are credibly inscribed on the tablets and steles. Correspondingly, the column displays the realistic activities of the individuals organizing and involving in clashes. Particularly, Trajan’

Tuesday, October 15, 2019

Infosys and levendary cafe case Study Example | Topics and Well Written Essays - 500 words

Infosys and levendary cafe - Case Study Example The functions though many are seemingly well coordinated (though not without challenges) and this is as a result of good and effective leadership starting from the former Chief Executive Officer (CEO) Howard Leventhal. With the division of the cafà © into functions, allocation of tasks is easier since there are smaller groups to manage and monitor increasing effectiveness and thus making even the cafà © win awards. The cafà © assumes that having a customer-personalized approach would lead to loyalty and eventually the company making profit which has worked since customers enjoy this approach and become loyal to the organization. Levendary had its values in an excellent customer service and this also formed the norm of the cafà ©. The other norms include speed of service and order accuracy. In experimenting with local menu, they won an award for the cheese soup. One of the values of Levendary cafà © is customer’s comfort and loyalty and this has previously been achieved through having a customer-dictated menu, the signature soup and salads and wooden chairs. This has been ignored in some Chinese cities like Beijing’s Forbidden City and Shanghai’s Yu Garden which is challenging the organizational culture of the cafà © (Bartlett and Arar 8). The company management assumes that having higher value added services will make them achieve competitive advantage in the Indian IT market and also start being recognized internationally. Its main values include transparency, having effective leadership, customer delight, integrity and fairness. Its main norm includes having frequent meetings to be updated and brainstorm on new ideas of making their company excel and the other is employee satisfaction. Its main artifact is embedded in its brand equity. Hofstede’s cultural dimension explains four dimensions of cultural values. The most applicable of these values is the individualistic-collectivist dimension which seeks to compare the two when it comes

Dominos Pizza Essay Example for Free

Dominos Pizza Essay Domino’s Pizza experienced a decrease in revenue of 16. 3% from year-end 2005 through the year-end 2009. It is true that the economic recession was partly at blame. However, the enterprise suffered from a negative reputation in the marketplace. Domino’s Pizza delivered pizzas that did not quite meet the demands of consumer taste. Their costumers would use social media to protest the ill delivery of pizzas and terrible taste. In addition, consumers were now more educated about their eating habits and had a growing concern with diets that led to obesity. Moreover, these facts combined with competition including companies such as Pizza Hut and Papa John’s, posed a hostile environment for Domino’s Pizza. In order to overcome these pitfalls, Domino’s pizza not only introduced a new recipe but also launched one of the riskiest advertising campaigns to this day. The recipe was a reinvention of their pizza with new ingredients that improved flavor. The advertising campaign oh yes we did guaranteed customer satisfaction otherwise they would return their money and deliver another pizza free. Another aspect of this marvelous campaign was the use of real life costumers who participated in the making of the pizza in televised commercials. Here is a comparison between pre-2009 strategies with its new approach. And, some qualities that were engaged to implement the revised strategies. Pre-2009 ?Dominos was focused on producing pizza for as cheap as possible. ?Cost leader ?8. 35% of pizzas sold in U. S ?Second behind Pizza Hut 13. 7% ?Bad rep for poor quality pizza ?Worst tasting pizza in its industry ?Market share fell 2% from 2005-2009 Post 2009 ?â€Å"Oh Ye We Did Campaign†? Dominos renewed focus on â€Å" Better ingredients, Better Pizza† and a broader menu. ?Focused on improving taste of its pizza ?Added garlic and butter to crust ?Added new side dishes and desserts ?Match competitors taste ?Expanded overall product choices Leadership ?David Brandon – C. E. O ?Innovate products ?Expand brand scope ?Everything on the menu is heavily tested and demanded by our customer ?All menu items are integrated ?â€Å"Get the door, Its Dominos† – Industry leader in efficiency ?Gathered feedback from employees ?â€Å"whats up dominos? † ?â€Å"Lunch with Dave†? Brandon would learned a lot from his employees ?Unique leadership style ?Always looking to improve even when successful Domino’s sales distribution is both domestic and internationally. The company gets 53 percent of its sales domestically and 47 percent internationally. In 2010, domestic sales were $3. 3 billion and internationally it was $2. 95 billion. Not only did fiscal year 2010 revenues show a healthy return, but cost of sales decreased by 3. 25 percent between fiscal year 2008 and 2010. Domino’s showed a very big decrease in its sales because the consumers were concerned about the quality of the pizza that dominos offered compare to the other companies in the industry. 2005 was the peak of the company where it made the most net income, since then revenues have been declining. Revenue declines aside, due to interest, repurchasing of stock, and other financial implications, after a 65 percent fall from 2006 to 2007, net income increased over the last four years. Domino’s current strategy is working well in the sense of income and revenue wise. The Net income increase was $37. 9 million in 2007, $54. 0 million in 2008, $79. 8 million in 2009, and $87. 9 million in 2010, which is annual increases of 42. 5 percent, 47. 7 percent, and 10. 25 percent respectively. The result of the revenue increase also helped eliminate debt from 2007 to 2010 from when they took a big decrease in sales and popularity from 2006 to 2007. By 2010, Domino’s became the leading pizza company in the industry; it had higher revenue and a higher net income than the leading Papa Johns. On the other hand, Dominos is only leading in revenue because it has more locations than the other pizza stores do. Compared to Papa Johns in 2010, Dominos has 9300 stores worldwide, while Papa John’s has only half of that with 3,600 worldwide. Dominos generates $170,000 per store and Papa John’s generates $313,000 per store. Dominos needs to focus on creating more revenue per store so they can provide better value to their shareholders. Taking on a better strategic approach by introducing new items to the menu and increasing the quality of the pizza did help the company get back on track from when it took the fall in 2007. The most recent year 2014, revenues almost doubled than it did in 2013 with a revenue of 589 million in 2014 and 295 million in 2013. Dominos have increased over the last six years in revenues, net income, and Earnings Per Share. Based on these numbers, the company has executed a good strategic plan. We one of most important thing any food establishment should do listen to what their consumers want. They have look into what feedback their consumers are giving them and then have a quick response to consumer’s feedback. A food chain can have all the technology in the world but if they don’t know what their consumers want they will never grow.

Monday, October 14, 2019

Differentiate Between Stress And Strain Engineering Essay

Differentiate Between Stress And Strain Engineering Essay When stretching a material, the length changes and the strain become positive. More strain means that more stress to the object once compress. When the material is compressed, the length changes and strain becomes negative. This obeys to the law of the stresses where go together with these strains, tensile stresses being positive and compressive stresses negative. http://studentweb.usq.edu.au/home/w0036795/etassgn_4/images_unit02/unit2_image36.gif Figure above shows the relationship between stress and stain as the stress is directly proportional to strain. There is a relationship where the force applied and the object changing in physical shape. It has revealed that the elastic behavior can be defined thru some relations with the form that the physical state changes is small in related to the original. This relationship can defined as Hookes Law ( F = -kx) Question 2 Pyrometer is used for measuring temperature. Discuss in details four principal techniques for the measurement of temperature. State the typical applications of different types of pyrometers A pyrometer used to measures heat from an object which has visible in bright or radiant. Pyrometers consider as thermometers where scientists use it to define the heat and heat type given out from an object. The critical variation between a pyrometer and other types of thermometers is the radiant levels on or after the heated objects are typically far too hot for interaction. That is why pyrometers have visual scanners that measure the heat. Four principal techniques for measurement of temperature. IR Pyrometers for Surface Temperatures The spectrum lies at wavelengths longer than light however shorter than microwaves or measuring system. IR pyrometers usually operate with wavelengths from two to twenty microns, reckoning on the material being measured. Plancks law states that the emissive power of a black body contains a spectral distribution reliant on the body temperature. This can be a well-known matter, thus there are numerous strategies to avoid this matter with variable target emissivity. IR Gas Temperature Pyrometers IR pyrometer functional at a wavelength consistent to the combustion emitted products, such as CO2 gas radiation (at 4.26 or 4.5 microns) can measure average gas temperature. This method needs gas to be combusted, meanwhile air not having a sturdy IR emission peaks. All fossil fuels produce CO2 after when it burnt, so this method is appropriate to oil and propane fired furnaces, but not for electrically heated furnaces. The temperature of the gas stately is the radiation temperature of the CO2 gases in the field of view of the lens, so choice of lens and placement is significant. 2 IR pyrometers must be located on opposite sides of the furnace to portion this temperature inhomogeneity. Whatever that blocks the assessment of the lens (as soot or dust), air penetration (less CO2 to measure temperatures) or huge differences in gas temperature with time can create the average temperature signal too strident to use straight in a control system. ACOUSTIC PYROMETERS Acoustic pyrometers is a method where used to measure the temperature of gases created on the temperature reliance of the speed of sound. The speed of sound diverges through the square root of the total gas temperature. This method stretches an average temperature completed an identified path length if the gas composition is identified and continuous. Guileless acoustical pyrometry uses the time of flight statistics for the leading wave front to reach the receiver. This is suitable on behalf of an average gas temperature for one path. The wavelengths may exist to be enormous, for instance, presumptuous a sound velocity of 880 m/s at a frequency of 500 Hz stretches a wavelength of 1.8 m. Ruptures of air can remain the basis of sound, giving an informal to connect, low-maintenance instrument. Numerous paths can be selected, which can be examined to provide 2D isothermal maps of furnace temperature problematic to crop by other resources for gas temperatures of 1650Â °C. Advantages of a coustical pyrometry embrace modest and rough equipment for industrial environments, numerous paths subsequently a single transmitter for a least amount of holes in the furnace walls for 2D temperature mapping, low operating costs and proven technology. Suction pyrometers Suction pyrometers are a method where suction is used to appeal the hot combustion gases past a thermocouple at a great velocity to decrease the fault in gas temperature measurements. Radiation shields reduce the thermal effects of radiation. Suction pyrometers are still the best industrial apparatuses for measuring combustion gas temperatures, for instance, they are used for impermanent gas temperature measurements at a specific position or for calibration of other temperature measurement apparatus. The micro suction pyrometer has been established to evade countless of the disadvantages of the suction pyrometer. Main disadvantages with micro suction pyrometers comprise their lesser accurateness and additional brittle construction comparative to conservative suction pyrometers. Types of pyrometers Broadband Pyrometer The broadband pyrometer is used to record the broadband wavelengths of radiation, typically about 0.3 microns. However furthermost repeatedly used, they can have big mistakes in readings. Subsequently they are merely registering a minor quantity of an object heat. Everything from water vapor to dust can produce a reading error. Optical Pyrometers An optical pyrometer let a scientist to observe heat though all pyrometers are optical in the sense they can recite an objects heat from a distance. An optical pyrometer is used to measures the heat infrared wavelengths and straight displays the manipulator the object heat distribution. Additional pyrometers typically have a screen to shows the results of an optical scan. An optical pyrometer can act lie a telescope where the scientists can look over a lens and see the infrared wavelengths of an object. Optical pyrometers are one of the oldest pyrometer types and are able to see the wavelength levels up to 0.65 microns. Radiation Pyrometer A radiation pyrometer is used to determine pure radiation wavelengths. The device contains an optical scanner that can perceive 0.7 to 20 microns on the range of wavelength, the overall range for radioactive heat. The optical scanner lightens the burden of scientists in measuring the radiation levels without putting the pyrometer up to the object, where it can endanger the person in charge to expose to radiation. Question 3 Draw the functional block diagram of Electrocardiography (ECG) machines and explain each in details. From the functional block diagram, answer the following: 1. What (electrically) is being measured? 2. How is the electrical signal capture? What is the sensor? How does it work? Draw a complete circuit to represent the functional block diagram What is ECG? An electrocardiogram or ECG is used to measure and analyzed electrical recording of the heart and even used to investigate heart disease. British physiologist Augustus D. Waller is the creator of electrocardiography and published the first human electrocardiogram in the year 1887. Dutch physiologist Willem Einthoven, who transformed this inquisitive physiologic phenomenon into a crucial clinical recording device, was awarded a Nobel prize in medicine. Block diagram of ECG http://edge.rit.edu/content/OldEDGE/public/Archives/P05903/WebsitePics/ECGsetup.JPG When the heart depolarizes, its suitable (and quite precise) to denote the electrical activity as a dipole which a vector between two point charges. A vector has both a size (magnitude), and a direction. The potential diverges around the volume conductor. This applies to all intra-cardiac events, so the vector (or axis) for P waves, the QRS complex, T waves, and so on. http://2.bp.blogspot.com/_CvxN91KM3Rc/S_olozyyWWI/AAAAAAAAAoo/VieQEJcOz54/s1600/3-lead_ecg-signal+measurement.jpg The electrocardiogram, or ECG is a surface measurement of the electrical potential produced by electrical action in cardiac tissue. Current flow in ion form and signals shrinkage of cardiac muscle fibers foremost to the hearts pumping activity. The human heart can also be considered as a large muscle where the beating is just contraction of muscles. Consequently contractions of the heart create a potential. The measurement of the potential created by cardiac muscle is called as electrocardiology. Types of electric is being measured a) Bipolar leads: The position point located on one limb, the `sensing electrode can be on another limb. The leads are mark as I, II, and III. b) Unipolar leads: The position point located in some leads that joined together, and the sensing lead is located on one limb. These leads are predictably increased, in that the position lead on the limb sensed is disconnected from the other two. c) The V leads : The position where lengthen across the precordium, V1 in the fourth right interspace, V2 4th left, V4 at the apex (5th interspace, midclavicular line), V3 halfway in between V2 and V4, and V5 V6 in the 5th interspace at the anterior and mid axillary lines correspondingly. These electrode leads are usually connected to potential differences devices between selected electrodes to create the specific ECG tracings. Majority of the ECG leads are bipolar leads (e.g., standard limb leads) that apply a single positive and a single negative electrode amongst which electrical potentials are measured. Unipolar leads (augmented leads and chest leads) consist os single positive recording electrode and apply a blend of the other electrodes to assist as a merged negative electrode. Typically, once an ECG is recorded, all leads are recorded instantaneously, normally called as 12-lead ECG. How is the electrical signal capture? What is the sensor? How does it work? Cardiac electrical potential wave forms (voltages created through the heart as its chambers contract) are measured by the PASCO CI-6539A EKG (Electrocardiogram) Sensor. The sensor contains of the electronics box by a cable for connecting to the PASCO computer interface through a five pin DIN analog connector. 3 electrode leads pass in the electronics box on the side opposite the cable that assigns to the interface. The sensor signal is conveyed from side to side an opto-isloation circuit. An isolation transformer is used to transfer the sensors power. Question 5 Explain in detail idea of industrial voltage to frequency converters and frequency to voltage converters using an operational amplifier. Voltage to frequency converter The voltage-to-frequency converter is a converter which delivers an output frequency precisely relative to its input voltage. The digital open-collector frequency output is well-matched through all mutual logic families. Its adding input features give the VFC32 outstanding noise resistance and small nonlinearity. Complete output frequency is determined by an exterior capacitor and resistor. Open-collector logic output is gain from the frequency output terminal. A pull-up resistor is typically connected to a 5V logic supply to generate normal logic-level pulses. Though, it connected to some power supply (+VCC). Production pulses obligate a continuous period and positive-going throughout the oneshot period. Current flowing in the open-collector output transistor proceeds by the common terminal. The terminal must be linked to logic ground. Frequency to voltage conversion The capacitive-coupled response network C3, R6 and R7 let typical 5V logic levels to activate the comparator input. The comparator causes the one-shot on the dropping control of the frequency input pulses. Beginning voltage of the comparator is about -0.7V. 5V logic levels having less waveform for frequency input, the comparator is activated by regulating the voltage divider of R6/R7 to a lower voltage. C2 smoothens the output voltage waveform. Greater values of C2 decrease the wrinkle in the output voltage. Lesser values of C2 let the output voltage to resolve quicker in response to a modification in input frequency. Resistor R1 can be pared to attain the preferred output voltage at the complete input frequency. The signal response current is equivalent to VIN/R1. This current is combined by response op amp and C2, creating a descending ramping integrator output voltage. Once the integrator output slopes to the verge of the comparator, the one-shot is activated. The 1mA reference cu rrent is swapped to the integrator input throughout the one-shot length, producing the integrator production ramp rising. Subsequently the one-shot period, the integrator again ramps descending. The fluctuation procedure forces a long-term stability of charge (or average current) between the input signal current and the reference current. Question 6 Describe the purpose and basic operation principle of differential pressure flow meters. Differentiate between orifice plate, venturi, nozzle and pitot tube. Differential pressure flow meters It is the control of fluid flow rate by interpretation the pressure loss thru a pipe restriction is possibly the greatest where usually used flow measurement method in industrialized uses (Figure 2-1). The descent of pressure created by a extensive variability of geometrical restrictions have been well considered over the years. These primary or head flow elements originate in a extensive diversity of configurations, all with exact application assets and flaws. Differences on the refrain of differential pressure (d/p) flow measurement http://www.omega.com/literature/transactions/volume4/images/07_Fig_01_l.GIF Orifice plates http://www.omega.com/literature/transactions/volume4/images/07_Fig_04_l.GIF In clean liquid, gas, and steam service, orifice plates are generally used. It is obtainable for entirely pipe sizes, very economical for gauging flows in bigger pipes (over 6 diameter). Numerous standards organizations permitted the orifice plates as is used for the supervision the transfer of liquids and gases. The orifice flow calculations used today still fluctuate from each other, though the numerous standards organizations are operational to accept a solitary, generally accepted orifice flow calculation. User can select the flow equation thru orifice sizing program. Even though it is a modest device, the orifice plate can be considered as a precision instrument. Orifice plates are fairly sensitive to a change of error-inducing situations. Precision in the drag controls, the excellence of the connection, and the state of the plate itself regulate the routine. Installation influences embrace tap position and state, form of the process pipe, capability of straight pipe innings, ga sket intrusion, misalignment of pipe and orifice drags, and lead line design. Other adverse conditions comprise the corrosion or erosion of the pipes, dirt, and grease or secondary phase deposits on either orifice surface. http://www.omega.com/literature/transactions/volume4/images/07_Fig_06_l.GIF Venture tube http://www.omega.com/literature/transactions/volume4/images/07_Fig_07_l.GIF The venturi tubes is quite expensive, so they are mainly used for greater flows or on further tough or difficult flow applications. Venturis are not sensitive to velocity outline properties and consequently need fewer straight pipe run than an orifice. The character of scrubbing act of the flow through the tube creates the device resistant to corrosion, erosion, and interior scale build up. Due to high initial cost, the owner still is promising as the savings in fitting and functioning and maintenance costs. Flow element is long which considered by a narrowing inlet and a deviating outlet. The entrance is used to determine the inlet pressure, while the throat section is to measure the static pressure. The pressure taps nourish into a joint annular chamber, as long as an average pressure analysis over the whole perimeter of the element. The venturi is partial in its use to clean, non-corrosive liquids and gases. The great instability and the absence of holes in which material can gath er create flow tubes well suitable for slurry and mud services. But, maintenance costs can be high if air removal cant stop persisting of the pressure taps and lead lines. Plunger-like devices (vent cleaners) can be connected to occasionally eliminate accumulation from interior openings, even though the meter is online. Flow nozzle http://www.omega.com/literature/transactions/volume4/images/07_Fig_09_l.GIF The flow nozzle can be said it is more stable than the orifice plate, mainly in greater or higher temperature and higher velocity services as compared to orifice plates. It used to determine high flow rates of superheated vapor. The flow nozzle also having a better flow capacity than the orifice plate and needs a lesser first investment than a venturi tube, but also delivers lesser pressure recovery. A main disadvantage of the nozzle is that it is harder to change than the orifice except it can be detached as part of a spool unit. Flow nozzles preserve their accuracy for long periods, even in tough service. Flow nozzles can be very accurate way to determine gas flows. As soon as the gas velocity influences the speed of sound in the throat, the velocity cant surge any more and a overcome flow condition is extended. Pitot Tubes http://www.omega.com/literature/transactions/volume4/images/07_Fig.12_l.GIF Pitot tube is one of the simple in design flow sensors where it is used to measure varied range of flow measurement applications. Normally, it is used in air speed in racing cars and air force fighter jets. Pitot tubes also used to analyze air flow in pipes, ducts, and stacks, and liquid flow in pipes, weirs, and open channels in industrial applications. The accuracy and range capability are moderately low, while pitot tubes are modest, dependable, low-cost, and suitable for a diversity of environmental situations, plus tremendously high temperatures and a wide range of pressures.