Monday, December 23, 2019

Primary Education Of Upper Class Children - 872 Words

Primary education of upper-class children in colonial days included reading, writing, basic math, poems, and prayers. Education was provided for white students only and was privately taught: the purpose was to prepare children for their eventual roles in plantation life. During this time while males studied advanced academic subjects, the females learned to assume the role of the mistress of a plantation. It was not until the 1840s that an organized system existed. Education reformers like Thomas Jefferson with the common school, John Dewey with progressive education and E.D Hirsch with cultural literacy, who with their contributions helped shape the educational system we have today. Thomas Jefferson, the â€Å"Man of the People,† is best known for drafting the Declaration of Independence, but he also wrote prolifically and prophetically about education. â€Å"If a nation expects to be ignorant and free, in a state of civilization, it expects what never was and never will be,† he wrote in a letter to a friend. Common school advocates like Jefferson worked to establish a free elementary education accessible to everyone and financed by public funds. Jefferson understood that freedom depends on self-government and that education contributes to both the knowledge and virtues that form a self-governing citizen. Jefferson sought to teach â€Å"all children of the state reading, writing, and common arithmetic.† Jefferson viewed this basic education as instrumental in securing â€Å"life, liberty, andShow MoreRelatedRace and Social Inequality in Education1382 Words   |  6 PagesMajor social institutions affect society, humanity, and prosperity in different ways. 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Sunday, December 15, 2019

Tsunami and Love Canal Free Essays

A  tsunami  (‘harbor wave’) or  tidal wave  is a series of water waves (called a  tsunami wave train) caused by the displacement of a large volume of a body of water, usually an ocean, but can occur in  large lakes. Tsunamis are a frequent occurrence in Japan; approximately 195 events have been recorded. Due to the immense volumes of water and energy involved, tsunamis can devastate coastal regions. We will write a custom essay sample on Tsunami and Love Canal or any similar topic only for you Order Now Earthquakes,  volcanic eruptions  and other  underwater explosions  (including detonations of underwater  nuclear devices), landslides  and other  mass movements,  meteorite ocean impacts or similar impact events, and other disturbances above or below water all have the potential to generate a tsunami. The  Greek  historian  Thucydides  was the first to relate tsunami to  submarine earthquakes,  but understanding of tsunami’s nature remained slim until the 20th century and is the subject of ongoing research. Many early  geological,  geographical, and oceanographic  texts refer to tsunamis as â€Å"seismic sea waves. CHARACTERISTICS: While everyday  wind waves  have a  wavelength  (from crest to crest) of about 100  meters (330 ft) and a height of roughly 2  meters (6. 6 ft), a tsunami in the deep ocean has a wavelength of about 200  kilometers (120 mi). Such a wave travels at well over 800  kilometers per hour (500 mph), but d ue to the enormous wavelength the wave oscillation at any given point takes 20 or 30 minutes to complete a cycle and has amplitude of only about 1  meter (3. 3 ft). This makes tsunamis difficult to detect over deep water. Ships rarely notice their passage. As the tsunami approaches the coast and the waters become shallow,  wave shoaling  compresses the wave and its velocity slows below 80  kilometers per hour (50 mph). Its wavelength diminishes to less than 20  kilometers (12 mi) and its amplitude grows enormously, producing a distinctly visible wave. Since the wave still has such a long wavelength, the tsunami may take minutes to reach full height. Except for the very largest tsunamis, the approaching wave does not break (like a  surf break), but rather appears like a fast moving  tidal bore. Open bays and coastlines adjacent to very deep water may shape the tsunami further into a step-like wave with a steep-breaking front. When the tsunami’s wave peak reaches the shore, the resulting temporary rise in sea level is termed ‘run up’. Run up is measured in meters above a reference sea level. A large tsunami may feature multiple waves arriving over a period of hours, with significant time between the wave crests. The first wave to reach the shore may not have the highest run up. About 80% of tsunamis occur in the Pacific Ocean, but are possible wherever there are large bodies of water, including lakes. They are caused by earthquakes, landslides, volcanic explosions, and  bolides. GENERATION MECHANISMS: The principal generation mechanism (or cause) of a tsunami is the displacement of a substantial volume of water or perturbation of the sea. This displacement of water is usually attributed to earthquakes, landslides, volcanic eruptions, or more rarely by meteorites and nuclear tests. The waves formed in this way are then sustained by gravity. It is important to note that  tides  do not play any part in the generation of tsunamis; hence referring to tsunamis as ‘tidal waves’ is inaccurate. Seismicity generated tsunamis Tsunamis can be generated when the sea floor abruptly deforms and vertically displaces the overlying water. Tectonic earthquakes are a particular kind of earthquake that are associated with the earth’s crustal deformation; when these earthquakes occur beneath the sea, the water above the deformed area is displaced from its equilibrium position. More specifically, a tsunami can be generated when  thrust faults  associated with  convergent  or destructive  plate boundaries  move abruptly, resulting in water displacement, due to the vertical component of movement involved. Movement on normal faults will also cause displacement of the seabed, but the size of the largest of such events is normally too small to give rise to a significant tsunami. |[pic] |[pic] |[pic] |[pic] | |Drawing of  tectonic plate |Overriding plate bulges under |Plate slips, causing |The energy released produces | |boundary  before earthquake. |strain, causing tectonic uplift. |subsidence  and releasing energy |tsunami waves. | | | |into water. | Tsunamis have a small  amplitude  (wave height) offshore, and a very long  wavelength  (often hundreds of kilometers long), which is why they generally pass unnoticed at sea, forming only a slight swell usually about 300  millimeters (12 in) above the normal sea surface. They grow in height when they reach shallower water, in a  wave shoaling  process described below. A tsunami can occur in any tidal state and even at low tide can still inundate coastal areas. On April 1, 1946, a magnitude-7. 8 (Richter scale)  earthqu ake  occurred near the  Aleutian Islands,  Alaska. It generated a tsunami which inundated  Hilo  on the island of Hawaii’s with a 14  meters (46 ft) high surge. The area where the  earthquake  occurred is where the  Pacific Ocean  floor is  subducting  (or being pushed downwards) under  Alaska. Examples of tsunami at locations away from  convergent boundaries  include  Storegga  about 8,000 years ago,  Grand Banks  1929,  Papua New Guinea  1998 (Tappin, 2001). The Grand Banks and Papua New Guinea tsunamis came from earthquakes which destabilized sediments, causing them to flow into the ocean and generate a tsunami. They dissipated before traveling transoceanic distances. The cause of the Storegga sediment failure is unknown. Possibilities include an overloading of the sediments, an earthquake or a release of gas hydrates (methane etc. ) The  1960 Valdivia earthquake  (Mw  9. 5) (19:11 hrs UTC),  1964 Alaska earthquake  (Mw  9. 2), and  2004 Indian Ocean earthquake  (Mw  9. 2) (00:58:53 UTC) are recent examples of powerful mega thrust  earthquakes that generated tsunamis (known as  teletsunamis) that can cross entire oceans. Smaller (Mw  4. 2) earthquakes in Japan can trigger tsunamis (called  local  and regional tsunamis) that can only devastate nearby coasts, but can do so in only a few minutes. In the 1950s, it was discovered that larger tsunamis than had previously been believed possible could be caused by giant  landslides. These phenomena rapidly displace large water volumes, as energy from falling debris or expansion transfers to the water at a rate faster than the water can absorb. Their existence was confirmed in 1958, when a giant landslide in Lituya Bay,  Alaska, caused the highest wave ever recorded, which had a height of 524 meters (over 1700 feet). The wave didn’t travel far, as it struck land almost immediately. Two people fishing in the bay were killed, but another boat amazingly managed to ride the wave. Scientists named these waves  mega tsunami. Scientists discovered that extremely large landslides from volcanic island collapses can generate  mega tsunami that can travel trans-oceanic distances. SCALES OF INTENSITY AND MAGNITUDE: As with earthquakes, several attempts have been made to set up scales of tsunami intensity or magnitude to allow comparison between different events. Intensity scales The first scales used routinely to measure the intensity of tsunami were the  Sieberg-Ambraseys scale, used in the  Mediterranean Sea  and the  Imamura-Iida intensity scale, used in the Pacific Ocean. The latter scale was modified by Soloviev, who calculated the Tsunami intensity  I  according to the formula [pic] Where  Hav  is the average wave height along the nearest coast. This scale, known as the  Soloviev-Imamura tsunami intensity scale, is used in the global tsunami catalogues compiled by the  NGDC/NOAA  and the Novosibirsk Tsunami Laboratory as the main parameter for the size of the tsunami. Magnitude scales The first scale that genuinely calculated a magnitude for a tsunami, rather than an intensity at a particular location was the ML scale proposed by Murty Loomis based on the potential energy. Difficulties in calculating the potential energy of the tsunami mean that this scale is rarely used. Abe introduced the  tsunami magnitude scale  Mt, calculated from, [pic] where  h  is the maximum tsunami-wave amplitude (in m) measured by a tide gauge at a distance  R  from the epicenter,  a,  b  Ã‚  D  are constants used to make the Mt  scale match as closely as possible with the moment magnitude scale. WARNINGS AND PREDICTIONS: Drawbacks can serve as a brief warning. People who observe drawback (many survivors report an accompanying sucking sound), can survive only if they immediately run for high ground or seek the upper floors of nearby buildings. In 2004, ten-year old  Tilly Smith  of  Surrey,  England, was on  Maikhao beach  in  Phuket,  Thailand  with her parents and sister, and having learned about tsunamis recently in school, told her family that a tsunami might be imminent. Her parents warned others minutes before the wave arrived, saving dozens of lives. She credited her geography teacher, Andrew Kearney. In the  2004 Indian Ocean tsunami  drawback was not reported on the African coast or any other eastern coasts it reached. This was because the wave moved downwards on the eastern side of the fault line and upwards on the western side. The western pulse hit coastal Africa and other western areas. A tsunami cannot be precisely predicted, even if the magnitude and location of an earthquake is known. Geologists,  oceanographers, and seismologists  analyze each earthquake and based on many factors may or may not issue a tsunami warning. However, there are some warning signs of an impending tsunami, and automated systems can provide warnings immediately after an earthquake in time to save lives. One of the most successful systems uses bottom pressure sensors that are attached to buoys. The sensors constantly monitor the pressure of the overlying water column. This is deduced through the calculation: [pic] Where, P  = the overlying  pressure  in Newton per meter square, ? = the  density  of the  seawater = 1. 1 x 103  kg/m3, g  = the  acceleration due to gravity = 9. 8 m/s2  and h  = the height of the water column in meters. Hence for a water column of 5,000 m depth the overlying pressure is equal to [pic] Or about 5500  tonnes-force  per square meter. Regions with a high tsunami risk typically use  tsunami warning systems  to warn the population before the wave reaches land. On the west coast of the United States, which is prone to Pacific Ocean tsunami, warning signs indicate evacuation routes. In Japan, the community is well-educated about earthquakes and tsunamis, and along the Japanese shorelines the tsunami warning signs are reminders of the natural hazards together with a network of warning sirens, typically at the top of the cliff of surroundings hills. The  Pacific Tsunami Warning System  is based in  Honolulu,  Hawaii. It monitors Pacific Ocean seismic activity. A sufficiently large earthquake magnitude and other information trigger a tsunami warning. While the seduction zones around the Pacific are seismically active, not all earthquakes generate tsunami. Computers assist in analyzing the tsunami risk of every earthquake that occurs in the Pacific Ocean and the adjoining land masses. |[pic] |[pic] |[pic] |[pic] | |Tsunami hazard sign |A tsunami warning sign on |The monument to the victims of |Tsunami memorial | |atBamfield,  British Columbia |a  seawall  in  Kamakura, Japan, |tsunami at Laupahoehoe,  Hawaii |inKanyakumari  beach | | |2004. | | | As a direct result of the Indian Ocean tsunami, a re-appraisal of the tsunami threat for all coastal areas is being undertaken by national governments and the United Nations Disaster Mitigation Committee. A tsunami warning system is being installed in the Indian Ocean. Computer models can predict tsunami arrival, usually within minutes of the arrival time. Bottom pressure sensors relay information in real time. Based on these pressure readings and other seismic information and the seafloor’s shape and coastal  topography, the models estimate the amplitude and surge height of the approaching tsunami. All Pacific Rim countries collaborate in the Tsunami Warning System and most regularly practice evacuation and other procedures. In Japan, such preparation is mandatory for government, local authorities, emergency services and the population. Some zoologists hypothesize that some animal species have an ability to sense subsonic  Rayleigh waves  from an earthquake or a tsunami. If correct, monitoring their behavior could provide advance warning of earthquakes, tsunami etc. However, the evidence is controversial and is not widely accepted. There are unsubstantiated claims about the Lisbon quake that some animals escaped to higher ground, while many other animals in the same areas drowned. The phenomenon was also noted by media sources in  Sri Lanka  in the  2004 Indian Ocean earthquake. [21][22]  It is possible that certain animals (e. g. ,  elephants) may have heard the sounds of the tsunami as it approached the coast. The elephants’ reaction was to move away from the approaching noise. By contrast, some humans went to the shore to investigate and many drowned as a result. It is not possible to prevent a tsunami. However, in some tsunami-prone countries some  earthquake engineering  measures have been taken to reduce the damage caused on shore. Japan  built many tsunami walls of up to 4. 5  metres (15 ft) to protect populated coastal areas. Other localities have built  floodgates  and channels to redirect the water from incoming tsunami. However, their effectiveness has been questioned, as tsunami often overtop the barriers. For instance, the  Okushiri, Hokkaido tsunami  which struck  Okushiri Island  of  Hokkaido  within two to five minutes of the  earthquake on July 12, 1993  created waves as much as 30  metres (100 ft) tall—as high as a 10-story building. The port town of Aonae was completely surrounded by a tsunami wall, but the waves washed right over the wall and destroyed all the wood-framed structures in the area. The wall may have succeeded in slowing down and moderating the height of the tsunami, but it did not prevent major destruction and loss of life. [23] Natural factors such as shoreline tree cover can mitigate tsunami effects. Some locations in the path of the 2004 Indian Ocean tsunami escaped almost unscathed because trees such as  coconut palms  and  mangroves  absorbed the tsunami’s energy. In one striking example, the village of  Naluvedapathy  in India’s  Tamil Nadu  region suffered only minimal damage and few deaths because the wave broke against a forest of 80,244 trees planted along the shoreline in 2002 in a bid to enter the  Guinness Book of Records. [24]  Environmentalists have suggested tree planting along tsunami-prone seacoasts. Trees require years to grow to a useful size, but such plantations could offer a much cheaper and longer-lasting means of tsunami mitigation than artificial barriers. The Love Canal chemical waste dump In 1920 Hooker Chemical had turned an area in Niagara Falls into a municipal and chemical disposal site. In 1953 the site was filled and relatively modern methods were applied to cover it. A thick layer of impermeable red clay sealed the dump, preventing chemicals from leaking out of the landfill. A city near the dumpsite wanted to buy it for urban expansion. Despite the warnings of Hooker the city eventually bought the site for the meager amount of 1 dollar. Hooker could not sell for more, because they did not want to earn money off a project so clearly unwise. The city began to dig to develop a sewer, damaging the red clay cap that covered the dumpsite below. Blocks of homes and a school were built and the neighborhood was named Love Canal. Love Canal seemed like a regular neighborhood. The only thing that distinguished this neighborhood from other was the strange odors that often hung in the air and an unusual seepage noticed by inhabitants in their basements and yards. Children in the neighborhood often fell ill. Love Canal families regularly experienced miscarriages and birth defects. Lois Gibbs, an activist, noticed the high occurrence of illness and birth defects in the area and started documenting it. In 1978 newspapers revealed the existence of the chemical waste dump in the Love Canal area and Lois Gibbs started petitioning for closing the school. In August 1978, the claim succeeded and the NYS Health Department ordered closing of the school when a child suffered from chemical poisoning. When Love Canal was researched over 130 pounds of the highly toxic carcinogenic TCDD, a form of dioxin, was discovered. The total of 20. 00 tons of waste present in the landfill appeared to contain more than 248 different species of chemicals. The waste mainly consisted of pesticide residues and chemical weapons research refuse. The chemicals had entered homes, sewers, yards and creeks and Gibbs decided it was time for the more than 900 families to be moved away from the location. Eventually President Carter provided funds to move all the families to a safer area. Hooker†™s parent company was sued and settled for 20 million dollars. Despite protests by Gibbs’s organization some of the houses in Love Canal went up for sale some 20 years later. The majority of the houses are on the market now and the neighborhood may become inhabited again after 20 years of abandonment. The houses in Love Canal are hard to sell, despite a renaming of the neighborhood. It suffered such a bad reputation after the incident that banks refused mortgages on the houses. None of the chemicals have been removed from the dumpsite. It has been resealed and the surrounding area was cleaned and declared safe. Hooker’s mother company paid an additional 230 million dollars to finance this cleanup. They are now responsible for the management of the dumpsite. Today, the Love Canal dumpsite is known as one of the major environmental disasters of the century. **** Love Canal is an abandoned canal in Niagara County, New York, where a huge amount of toxic waste was buried. The waste was composed of at least 300 different chemicals, totaling an estimated 20,000 metric tons. The existence of the waste was discovered in the 1970s when families living in homes subsequently built next to the site found chemical wastes seeping up through the ground into their basements, forcing them to eventually abandon their homes. Love Canal was used from the 1940s through the 1950s by the Hooker Chemical Company and the city of Niagara Falls, among others, to dispose of their hazardous and municipal wastes and other refuse. The canal was surrounded by clay and was thought at the time to be a safe place for disposal—and, in fact, burying chemicals in the canal was probably safer than many other methods and sites used for chemical disposal at the time. In 1953, the Niagara Falls Board of Education bought the land-fill for $1 and constructed an elementary school with playing fields on the site. Roads and sewer lines were added and, in the early 1970s, single-family homes were built adjacent to the site. Following a couple of heavy rains in the mid-1970s, the canal flooded and chemicals were observed on the surface of the site and in the basements of houses abutting the site. Newspaper coverage, investigations by the State of New York and by the U. S. Environmental Protection Agency, combined with pressure from the district’s U. S. congressional representative and outrage on the part of local residents, led to the declaration of a health emergency involving â€Å"great and imminent peril to the health of the general public. Ultimately, in August, 1978, a decision was made by Governor Hugh Carey, supported by the White House, to evacuate the residents and purchase 240 homes surrounding the site. Shortly thereafter, the residents of nearby homes that did not immediately abut the site also became concerned about their health and conducted a health survey that purported to show an increase in the occurrence of various diseases and problems such as birth defects and miscarriages, which were attributed to chemical exposures. A great controversy ensued over whether the observations were real or reflected normal rates of such problems, and whether chemical exposures had, in fact, occurred. Eventually, political pressure resulted in families being given an opportunity to leave and have their homes purchased by the State. About 70 homes remained occupied in 1989 by families who chose not to move. The controversy at Love Canal followed on the heels of the heightened awareness that occurred in the 1960s about environmental contamination, and it contributed to public and regulatory concern about hazardous wastes, waste disposal, and disclosure of such practices. Such concerns led Congress to pass the Resource Conservation and Recovery Act (RCRA) and the Toxic Substances Control Act (TSCA) in 1976, and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), also known as the Superfund bill, in 1980. When CERCLA was passed, few were aware of the extent of the problem potentially created by years of inappropriate or inadequate hazardous waste disposal practices. Since implementing CERCLA, the U. S. Environmental Protection Agency has identified more than 40,000 potentially contaminated â€Å"Superfund† sites. The Gulf War In August 1990 Iraqi forces invaded Kuwait, starting the Gulf War in which an allegiance of 34 nations worldwide was involved. In January  1991  of the Gulf War, Iraqi forces committed two environmental disasters. The first was a major oil spill 16 kilometers off the shore of Kuwait by dumping oil from several tankers and opening the valves of an offshore terminal. The second was the setting fire to 650 oil wells in Kuwait. The apparent strategic goal of the action was to prevent a potential landing by US Marines. American air strikes on January 26 destroyed pipelines to prevent further spillage into the Gulf. This however seemed to make little difference. Approximately one million tons of crude oil was already lost to the environment, making this the largest oil spill of human history. In the spring of 1991, as many as 500 oil wells were still burning and the last oil well was not extinguished until a few months later, in November. The oil spills did considerable damage to life in the Persian Gulf (see picture). Several months after the spill, the poisoned waters killed 20. 000 seabirds and had caused severe damage to local marine flora and fauna. The fires in the oil wells caused immense amounts of soot and toxic fumes to enter the atmosphere. This had great effects on the health of the local population and biota for several years. The pollution also had a possible impact on local weather patterns. How to cite Tsunami and Love Canal, Papers Tsunami and Love Canal Free Essays A  tsunami  (‘harbor wave’) or  tidal wave  is a series of water waves (called a  tsunami wave train) caused by the displacement of a large volume of a body of water, usually an ocean, but can occur in  large lakes. Tsunamis are a frequent occurrence in Japan; approximately 195 events have been recorded. Due to the immense volumes of water and energy involved, tsunamis can devastate coastal regions. We will write a custom essay sample on Tsunami and Love Canal or any similar topic only for you Order Now Earthquakes,  volcanic eruptions  and other  underwater explosions  (including detonations of underwater  nuclear devices), landslides  and other  mass movements,  meteorite ocean impacts or similar impact events, and other disturbances above or below water all have the potential to generate a tsunami. The  Greek  historian  Thucydides  was the first to relate tsunami to  submarine earthquakes,  but understanding of tsunami’s nature remained slim until the 20th century and is the subject of ongoing research. Many early  geological,  geographical, and oceanographic  texts refer to tsunamis as â€Å"seismic sea waves. CHARACTERISTICS: While everyday  wind waves  have a  wavelength  (from crest to crest) of about 100  meters (330 ft) and a height of roughly 2  meters (6. 6 ft), a tsunami in the deep ocean has a wavelength of about 200  kilometers (120 mi). Such a wave travels at well over 800  kilometers per hour (500 mph), but d ue to the enormous wavelength the wave oscillation at any given point takes 20 or 30 minutes to complete a cycle and has amplitude of only about 1  meter (3. 3 ft). This makes tsunamis difficult to detect over deep water. Ships rarely notice their passage. As the tsunami approaches the coast and the waters become shallow,  wave shoaling  compresses the wave and its velocity slows below 80  kilometers per hour (50 mph). Its wavelength diminishes to less than 20  kilometers (12 mi) and its amplitude grows enormously, producing a distinctly visible wave. Since the wave still has such a long wavelength, the tsunami may take minutes to reach full height. Except for the very largest tsunamis, the approaching wave does not break (like a  surf break), but rather appears like a fast moving  tidal bore. Open bays and coastlines adjacent to very deep water may shape the tsunami further into a step-like wave with a steep-breaking front. When the tsunami’s wave peak reaches the shore, the resulting temporary rise in sea level is termed ‘run up’. Run up is measured in meters above a reference sea level. A large tsunami may feature multiple waves arriving over a period of hours, with significant time between the wave crests. The first wave to reach the shore may not have the highest run up. About 80% of tsunamis occur in the Pacific Ocean, but are possible wherever there are large bodies of water, including lakes. They are caused by earthquakes, landslides, volcanic explosions, and  bolides. GENERATION MECHANISMS: The principal generation mechanism (or cause) of a tsunami is the displacement of a substantial volume of water or perturbation of the sea. This displacement of water is usually attributed to earthquakes, landslides, volcanic eruptions, or more rarely by meteorites and nuclear tests. The waves formed in this way are then sustained by gravity. It is important to note that  tides  do not play any part in the generation of tsunamis; hence referring to tsunamis as ‘tidal waves’ is inaccurate. Seismicity generated tsunamis Tsunamis can be generated when the sea floor abruptly deforms and vertically displaces the overlying water. Tectonic earthquakes are a particular kind of earthquake that are associated with the earth’s crustal deformation; when these earthquakes occur beneath the sea, the water above the deformed area is displaced from its equilibrium position. More specifically, a tsunami can be generated when  thrust faults  associated with  convergent  or destructive  plate boundaries  move abruptly, resulting in water displacement, due to the vertical component of movement involved. Movement on normal faults will also cause displacement of the seabed, but the size of the largest of such events is normally too small to give rise to a significant tsunami. |[pic] |[pic] |[pic] |[pic] | |Drawing of  tectonic plate |Overriding plate bulges under |Plate slips, causing |The energy released produces | |boundary  before earthquake. |strain, causing tectonic uplift. |subsidence  and releasing energy |tsunami waves. | | | |into water. | Tsunamis have a small  amplitude  (wave height) offshore, and a very long  wavelength  (often hundreds of kilometers long), which is why they generally pass unnoticed at sea, forming only a slight swell usually about 300  millimeters (12 in) above the normal sea surface. They grow in height when they reach shallower water, in a  wave shoaling  process described below. A tsunami can occur in any tidal state and even at low tide can still inundate coastal areas. On April 1, 1946, a magnitude-7. 8 (Richter scale)  earthqu ake  occurred near the  Aleutian Islands,  Alaska. It generated a tsunami which inundated  Hilo  on the island of Hawaii’s with a 14  meters (46 ft) high surge. The area where the  earthquake  occurred is where the  Pacific Ocean  floor is  subducting  (or being pushed downwards) under  Alaska. Examples of tsunami at locations away from  convergent boundaries  include  Storegga  about 8,000 years ago,  Grand Banks  1929,  Papua New Guinea  1998 (Tappin, 2001). The Grand Banks and Papua New Guinea tsunamis came from earthquakes which destabilized sediments, causing them to flow into the ocean and generate a tsunami. They dissipated before traveling transoceanic distances. The cause of the Storegga sediment failure is unknown. Possibilities include an overloading of the sediments, an earthquake or a release of gas hydrates (methane etc. ) The  1960 Valdivia earthquake  (Mw  9. 5) (19:11 hrs UTC),  1964 Alaska earthquake  (Mw  9. 2), and  2004 Indian Ocean earthquake  (Mw  9. 2) (00:58:53 UTC) are recent examples of powerful mega thrust  earthquakes that generated tsunamis (known as  teletsunamis) that can cross entire oceans. Smaller (Mw  4. 2) earthquakes in Japan can trigger tsunamis (called  local  and regional tsunamis) that can only devastate nearby coasts, but can do so in only a few minutes. In the 1950s, it was discovered that larger tsunamis than had previously been believed possible could be caused by giant  landslides. These phenomena rapidly displace large water volumes, as energy from falling debris or expansion transfers to the water at a rate faster than the water can absorb. Their existence was confirmed in 1958, when a giant landslide in Lituya Bay,  Alaska, caused the highest wave ever recorded, which had a height of 524 meters (over 1700 feet). The wave didn’t travel far, as it struck land almost immediately. Two people fishing in the bay were killed, but another boat amazingly managed to ride the wave. Scientists named these waves  mega tsunami. Scientists discovered that extremely large landslides from volcanic island collapses can generate  mega tsunami that can travel trans-oceanic distances. SCALES OF INTENSITY AND MAGNITUDE: As with earthquakes, several attempts have been made to set up scales of tsunami intensity or magnitude to allow comparison between different events. Intensity scales The first scales used routinely to measure the intensity of tsunami were the  Sieberg-Ambraseys scale, used in the  Mediterranean Sea  and the  Imamura-Iida intensity scale, used in the Pacific Ocean. The latter scale was modified by Soloviev, who calculated the Tsunami intensity  I  according to the formula [pic] Where  Hav  is the average wave height along the nearest coast. This scale, known as the  Soloviev-Imamura tsunami intensity scale, is used in the global tsunami catalogues compiled by the  NGDC/NOAA  and the Novosibirsk Tsunami Laboratory as the main parameter for the size of the tsunami. Magnitude scales The first scale that genuinely calculated a magnitude for a tsunami, rather than an intensity at a particular location was the ML scale proposed by Murty Loomis based on the potential energy. Difficulties in calculating the potential energy of the tsunami mean that this scale is rarely used. Abe introduced the  tsunami magnitude scale  Mt, calculated from, [pic] where  h  is the maximum tsunami-wave amplitude (in m) measured by a tide gauge at a distance  R  from the epicenter,  a,  b  Ã‚  D  are constants used to make the Mt  scale match as closely as possible with the moment magnitude scale. WARNINGS AND PREDICTIONS: Drawbacks can serve as a brief warning. People who observe drawback (many survivors report an accompanying sucking sound), can survive only if they immediately run for high ground or seek the upper floors of nearby buildings. In 2004, ten-year old  Tilly Smith  of  Surrey,  England, was on  Maikhao beach  in  Phuket,  Thailand  with her parents and sister, and having learned about tsunamis recently in school, told her family that a tsunami might be imminent. Her parents warned others minutes before the wave arrived, saving dozens of lives. She credited her geography teacher, Andrew Kearney. In the  2004 Indian Ocean tsunami  drawback was not reported on the African coast or any other eastern coasts it reached. This was because the wave moved downwards on the eastern side of the fault line and upwards on the western side. The western pulse hit coastal Africa and other western areas. A tsunami cannot be precisely predicted, even if the magnitude and location of an earthquake is known. Geologists,  oceanographers, and seismologists  analyze each earthquake and based on many factors may or may not issue a tsunami warning. However, there are some warning signs of an impending tsunami, and automated systems can provide warnings immediately after an earthquake in time to save lives. One of the most successful systems uses bottom pressure sensors that are attached to buoys. The sensors constantly monitor the pressure of the overlying water column. This is deduced through the calculation: [pic] Where, P  = the overlying  pressure  in Newton per meter square, ? = the  density  of the  seawater = 1. 1 x 103  kg/m3, g  = the  acceleration due to gravity = 9. 8 m/s2  and h  = the height of the water column in meters. Hence for a water column of 5,000 m depth the overlying pressure is equal to [pic] Or about 5500  tonnes-force  per square meter. Regions with a high tsunami risk typically use  tsunami warning systems  to warn the population before the wave reaches land. On the west coast of the United States, which is prone to Pacific Ocean tsunami, warning signs indicate evacuation routes. In Japan, the community is well-educated about earthquakes and tsunamis, and along the Japanese shorelines the tsunami warning signs are reminders of the natural hazards together with a network of warning sirens, typically at the top of the cliff of surroundings hills. The  Pacific Tsunami Warning System  is based in  Honolulu,  Hawaii. It monitors Pacific Ocean seismic activity. A sufficiently large earthquake magnitude and other information trigger a tsunami warning. While the seduction zones around the Pacific are seismically active, not all earthquakes generate tsunami. Computers assist in analyzing the tsunami risk of every earthquake that occurs in the Pacific Ocean and the adjoining land masses. |[pic] |[pic] |[pic] |[pic] | |Tsunami hazard sign |A tsunami warning sign on |The monument to the victims of |Tsunami memorial | |atBamfield,  British Columbia |a  seawall  in  Kamakura, Japan, |tsunami at Laupahoehoe,  Hawaii |inKanyakumari  beach | | |2004. | | | As a direct result of the Indian Ocean tsunami, a re-appraisal of the tsunami threat for all coastal areas is being undertaken by national governments and the United Nations Disaster Mitigation Committee. A tsunami warning system is being installed in the Indian Ocean. Computer models can predict tsunami arrival, usually within minutes of the arrival time. Bottom pressure sensors relay information in real time. Based on these pressure readings and other seismic information and the seafloor’s shape and coastal  topography, the models estimate the amplitude and surge height of the approaching tsunami. All Pacific Rim countries collaborate in the Tsunami Warning System and most regularly practice evacuation and other procedures. In Japan, such preparation is mandatory for government, local authorities, emergency services and the population. Some zoologists hypothesize that some animal species have an ability to sense subsonic  Rayleigh waves  from an earthquake or a tsunami. If correct, monitoring their behavior could provide advance warning of earthquakes, tsunami etc. However, the evidence is controversial and is not widely accepted. There are unsubstantiated claims about the Lisbon quake that some animals escaped to higher ground, while many other animals in the same areas drowned. The phenomenon was also noted by media sources in  Sri Lanka  in the  2004 Indian Ocean earthquake. [21][22]  It is possible that certain animals (e. g. ,  elephants) may have heard the sounds of the tsunami as it approached the coast. The elephants’ reaction was to move away from the approaching noise. By contrast, some humans went to the shore to investigate and many drowned as a result. It is not possible to prevent a tsunami. However, in some tsunami-prone countries some  earthquake engineering  measures have been taken to reduce the damage caused on shore. Japan  built many tsunami walls of up to 4. 5  metres (15 ft) to protect populated coastal areas. Other localities have built  floodgates  and channels to redirect the water from incoming tsunami. However, their effectiveness has been questioned, as tsunami often overtop the barriers. For instance, the  Okushiri, Hokkaido tsunami  which struck  Okushiri Island  of  Hokkaido  within two to five minutes of the  earthquake on July 12, 1993  created waves as much as 30  metres (100 ft) tall—as high as a 10-story building. The port town of Aonae was completely surrounded by a tsunami wall, but the waves washed right over the wall and destroyed all the wood-framed structures in the area. The wall may have succeeded in slowing down and moderating the height of the tsunami, but it did not prevent major destruction and loss of life. [23] Natural factors such as shoreline tree cover can mitigate tsunami effects. Some locations in the path of the 2004 Indian Ocean tsunami escaped almost unscathed because trees such as  coconut palms  and  mangroves  absorbed the tsunami’s energy. In one striking example, the village of  Naluvedapathy  in India’s  Tamil Nadu  region suffered only minimal damage and few deaths because the wave broke against a forest of 80,244 trees planted along the shoreline in 2002 in a bid to enter the  Guinness Book of Records. [24]  Environmentalists have suggested tree planting along tsunami-prone seacoasts. Trees require years to grow to a useful size, but such plantations could offer a much cheaper and longer-lasting means of tsunami mitigation than artificial barriers. The Love Canal chemical waste dump In 1920 Hooker Chemical had turned an area in Niagara Falls into a municipal and chemical disposal site. In 1953 the site was filled and relatively modern methods were applied to cover it. A thick layer of impermeable red clay sealed the dump, preventing chemicals from leaking out of the landfill. A city near the dumpsite wanted to buy it for urban expansion. Despite the warnings of Hooker the city eventually bought the site for the meager amount of 1 dollar. Hooker could not sell for more, because they did not want to earn money off a project so clearly unwise. The city began to dig to develop a sewer, damaging the red clay cap that covered the dumpsite below. Blocks of homes and a school were built and the neighborhood was named Love Canal. Love Canal seemed like a regular neighborhood. The only thing that distinguished this neighborhood from other was the strange odors that often hung in the air and an unusual seepage noticed by inhabitants in their basements and yards. Children in the neighborhood often fell ill. Love Canal families regularly experienced miscarriages and birth defects. Lois Gibbs, an activist, noticed the high occurrence of illness and birth defects in the area and started documenting it. In 1978 newspapers revealed the existence of the chemical waste dump in the Love Canal area and Lois Gibbs started petitioning for closing the school. In August 1978, the claim succeeded and the NYS Health Department ordered closing of the school when a child suffered from chemical poisoning. When Love Canal was researched over 130 pounds of the highly toxic carcinogenic TCDD, a form of dioxin, was discovered. The total of 20. 00 tons of waste present in the landfill appeared to contain more than 248 different species of chemicals. The waste mainly consisted of pesticide residues and chemical weapons research refuse. The chemicals had entered homes, sewers, yards and creeks and Gibbs decided it was time for the more than 900 families to be moved away from the location. Eventually President Carter provided funds to move all the families to a safer area. Hooker†™s parent company was sued and settled for 20 million dollars. Despite protests by Gibbs’s organization some of the houses in Love Canal went up for sale some 20 years later. The majority of the houses are on the market now and the neighborhood may become inhabited again after 20 years of abandonment. The houses in Love Canal are hard to sell, despite a renaming of the neighborhood. It suffered such a bad reputation after the incident that banks refused mortgages on the houses. None of the chemicals have been removed from the dumpsite. It has been resealed and the surrounding area was cleaned and declared safe. Hooker’s mother company paid an additional 230 million dollars to finance this cleanup. They are now responsible for the management of the dumpsite. Today, the Love Canal dumpsite is known as one of the major environmental disasters of the century. **** Love Canal is an abandoned canal in Niagara County, New York, where a huge amount of toxic waste was buried. The waste was composed of at least 300 different chemicals, totaling an estimated 20,000 metric tons. The existence of the waste was discovered in the 1970s when families living in homes subsequently built next to the site found chemical wastes seeping up through the ground into their basements, forcing them to eventually abandon their homes. Love Canal was used from the 1940s through the 1950s by the Hooker Chemical Company and the city of Niagara Falls, among others, to dispose of their hazardous and municipal wastes and other refuse. The canal was surrounded by clay and was thought at the time to be a safe place for disposal—and, in fact, burying chemicals in the canal was probably safer than many other methods and sites used for chemical disposal at the time. In 1953, the Niagara Falls Board of Education bought the land-fill for $1 and constructed an elementary school with playing fields on the site. Roads and sewer lines were added and, in the early 1970s, single-family homes were built adjacent to the site. Following a couple of heavy rains in the mid-1970s, the canal flooded and chemicals were observed on the surface of the site and in the basements of houses abutting the site. Newspaper coverage, investigations by the State of New York and by the U. S. Environmental Protection Agency, combined with pressure from the district’s U. S. congressional representative and outrage on the part of local residents, led to the declaration of a health emergency involving â€Å"great and imminent peril to the health of the general public. Ultimately, in August, 1978, a decision was made by Governor Hugh Carey, supported by the White House, to evacuate the residents and purchase 240 homes surrounding the site. Shortly thereafter, the residents of nearby homes that did not immediately abut the site also became concerned about their health and conducted a health survey that purported to show an increase in the occurrence of various diseases and problems such as birth defects and miscarriages, which were attributed to chemical exposures. A great controversy ensued over whether the observations were real or reflected normal rates of such problems, and whether chemical exposures had, in fact, occurred. Eventually, political pressure resulted in families being given an opportunity to leave and have their homes purchased by the State. About 70 homes remained occupied in 1989 by families who chose not to move. The controversy at Love Canal followed on the heels of the heightened awareness that occurred in the 1960s about environmental contamination, and it contributed to public and regulatory concern about hazardous wastes, waste disposal, and disclosure of such practices. Such concerns led Congress to pass the Resource Conservation and Recovery Act (RCRA) and the Toxic Substances Control Act (TSCA) in 1976, and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), also known as the Superfund bill, in 1980. When CERCLA was passed, few were aware of the extent of the problem potentially created by years of inappropriate or inadequate hazardous waste disposal practices. Since implementing CERCLA, the U. S. Environmental Protection Agency has identified more than 40,000 potentially contaminated â€Å"Superfund† sites. The Gulf War In August 1990 Iraqi forces invaded Kuwait, starting the Gulf War in which an allegiance of 34 nations worldwide was involved. In January  1991  of the Gulf War, Iraqi forces committed two environmental disasters. The first was a major oil spill 16 kilometers off the shore of Kuwait by dumping oil from several tankers and opening the valves of an offshore terminal. The second was the setting fire to 650 oil wells in Kuwait. The apparent strategic goal of the action was to prevent a potential landing by US Marines. American air strikes on January 26 destroyed pipelines to prevent further spillage into the Gulf. This however seemed to make little difference. Approximately one million tons of crude oil was already lost to the environment, making this the largest oil spill of human history. In the spring of 1991, as many as 500 oil wells were still burning and the last oil well was not extinguished until a few months later, in November. The oil spills did considerable damage to life in the Persian Gulf (see picture). Several months after the spill, the poisoned waters killed 20. 000 seabirds and had caused severe damage to local marine flora and fauna. The fires in the oil wells caused immense amounts of soot and toxic fumes to enter the atmosphere. This had great effects on the health of the local population and biota for several years. The pollution also had a possible impact on local weather patterns. How to cite Tsunami and Love Canal, Papers

Saturday, December 7, 2019

Dancing at Lughnasa Essay Example For Students

Dancing at Lughnasa Essay Dancing at Lughnasa, a play written by Brian Frier, is a depiction of a mans memory of his childhood. The narrator, Michael, takes us back to the warm harvest days of August 1936, when he was a seven-year-old boy being brought up by his unmarried mother Chris and her four sisters. The play, through Michaels narration, touches on different aspects of life of the characters by exploring the occurrence of simple events which contribute an impact to their relationships. However, Michael, as a chorus figure, plays the most significant role which affects our perception of the events which unfold. The play opens up with Michaels first speech. When I cast back my mind to that summer of 1936- We see an apparent reflection of the memory through his language. This phrase is repeatedly mentioned in his first speech which reinforces the notion of reminiscing the past. On the other hand, we see as well how Frier distances Michael from the past events through a careful use of words. The word cast in his the first phrase gives an impression that he is trying to detach his memory from him and when he say cast back, it implies how he retraces back his memory without taking part in the past events. He is recollecting the past but not re-living it. This is evidently conveyed by the author for his main purpose of using Michael is as an observer of the present who oversees and judges the lives of the characters from the past. Therefore we see a sort of detachment and distancing of this personage from the events that he is recollecting. Through this technique, Michael appears like an omniscient narrator (although he is not) and this gives an impression that we are discovering the characters and the events at the same as the narrator. Although Michael is involved in these events, the narrative point of view could be qualified as a third-person limited. Frier doesnt really give him an access to the characters thoughts or to what they do in private since he only re-tells a story that he witnessed when he was a child. This method is important because it allows the narrator to assess the events in an adults point of view and this is one of his main functions as a chorus-figure which we will explore later on. Another remarkable linguistic aspect of this speech is that it is characterised by a lyrical tone. The choice of this tonality is important in order to remind us of the notion of musicality and the idea of dance. The tone is very comforting but at the same time it creates a nostalgic atmosphere and the tone itself seems to distance us from the characters being introduced. Frier applies the flashback technique by using Michaels memory to simply separate two elements of his character he detaches the adult Michael from Michael the boy. This explains why the whole play has no plot at all. The narrator relates a story of what he witnessed when he was seven therefore he is relating his memory in an objective manner which simply imply that during that summer of 1936, he did not really have a complete and a deeper understanding of those events. He is narrating a story according to how things had happened exteriorly. This explains as well his absence throughout the play for the reason that he hides and observe everybody as if it is his main preoccupation. for the first time in my life I had a chance to observe him(his father), It had fallen out of Aunt Kates prayer book and she snatched it from me before I could study it in detail. Since the play echoes Michaels memory as a boy, this answers the flatness of the plot. There is no climax in the play and it almost lacks colour and other ingredients that could make the story attractive. This parallels to the boys innocence which is a barrier that separates him from the interior side of the characters. There is nothing spectacular that happens in the play and all the events are stagnant. The childish memory shows us the slow and constant rhythm of their everyday life. We see how theyre engaged to simple things like making tea, knitting gloves, picking blackberries or feeding their pets. There is no apparent development of the characters. Romeo and Juliet - Act 3 Scene 1 EssayHowever, having a complete knowledge of the play, the image of these women dancing and catching hands make our sympathy increase for them.. We see them like a chain which will later on disintegrate into small pieces. There are also symbolism that Frier evokes in the play. Michael narrates this one particular moment because it is the final celebration of these women dancing before it changed forever. It was the moment of a new beginning for him as a boy for it was in this summer that he discovered events and felt something for the first time. In his speech, he uses words like, first wireless, August was about to begin, my Uncle Jack, came home from Africa for the first time, I recall my first shock at Jacks appearance, I remember my first delight and for the first time of my life I had a chance to observe him (his father). However, this particular moment represent as well the path leading to their fate the disintegration one be one of the characters. In one part, the play ends with all the characters similar to their position in the beginning of the play. This tableau image signifies how Michael sees his family as he casts back his mind in that summer of 1936. Since for him, it was the beginning and the end, he tries to preserve these freeze characters in his memory. The kite in the play symbolically represents Michael. He is the outsider trapped in a world of women when he was seven. He even distances himself as he narrates this story. However, like a kite, although he is detached from the whole events that occurred, there is still something that attaches him to this particular moment. His memory is comparable to the chord of the kite that connects him to the past. On the other hand, the swaying of this kite reminds us again of the notion of dancing which symbolises the escape for the five women. It is their only way out to release the tensions and pressures imposed by religion and duty. Frier uses Michael to symbolically give a spirit and a life to this plotless play. The lack of plot is supported by the intervals between monologues and dialogues. It is actually through Michaels speech that we feel for the characters. His words are almost representing an explosion of emotions for it is through his speeches that we begin to feel something. It is through him that we discover what happened to Rose and Agnes and that he has a half-brother. However, there is an existing metaphoric symbolism of Michaels role and the other characters representation in the play. The play could symbolise the dance without a melody and Michael, by remembering the past and assessing the whole events through his analytical point of view, gives the rhythm and the harmonious melody to this dance. We observe how the play is almost like a pantomime because the actual text of the play seems to be lacking paralleling the lack of plot. Frier wants to show that words arent really the voice of the truth and that the actions speak louder than words. dancing as if language no longer existed because words were no longer necessary. But we could also view this symbolism in a different way. The whole book is almost like a song that convey several themes. The relationship between the five sisters and the male characters, Jack and Jerry, symbolise seven different notes (do re mi fa sol la ti) that are interrelated to each other creating a melodious harmony. However, to give a spirit to this melody, Michael symbolises the lyrics which gives the life to this song. This is reflected on his liyrical tone. Like the words of a song, he intervenes and overlaps on some of the scene just as how lyrics overlaps on some of the part of a song. And as the characters disappear one by one at the end, the song loses its notes and melodious elements which imply the disintegration of the sisters. Now fade in very softly, just audible, the music It is time to say Goodnight.

Saturday, November 30, 2019

TV Advertisements Aimed at Children in Australian should be banned

Introduction For companies to create awareness about their products or to persuade the consumers of their products, they use advertisements to reach this target. In most cases, the advertisements target the consumers’ needs by exploiting their demands and offering solutions. These advertisements always lead to increased consumption.Advertising We will write a custom essay sample on TV Advertisements Aimed at Children in Australian should be banned specifically for you for only $16.05 $11/page Learn More One major group, that advertisers have targeted, is children (Media Awareness Network 2010). The strategy is based on the fact that children have substantial amounts of money to spend, and they also have an influence on their parents’ spending. The advertisements targeting children have diversified from sweets and toys in the past to clothes, fast foods, computer accessories, shoes, sports gear and even included some adult-relevant products such as vehicles. The impact of advertising on children has been a subject of debate with different schools of thought arguing on their suitability. In Australia, children are said to constitute a significant proportion of spenders as well as largely influencing their parents’ purchasing and, thus, a major target for advertisers (Sharon 1998). This paper will weigh on whether TV advertisements aimed at children in Australia should be banned. Why TV Advertisements Aimed At Children in Australian Should Be Banned Australia has one of the highest proportions of children with obesity. Since 1980s, the prevalence has been on the rise. This has been attributed to the time children spend watching television. In addition, to reduce energy expenditure, there is the associated increase in food consumption resulting from the food advertisements on display. Australia has been shown to have one of the highest food advertisements rates per hour. Unfortunately, most of the advertised foods fall below the recommended standards of healthy diets. Fast food restaurants and foods rich in fats and sugars constitute over half the number of food advertisements on Australian television (Coalition on Food Advertising to Children (CFAC) 2007). The advertisements have been shown to influence children food consumption trends with a national nutritional survey in 1997 showing that only a small proportion of children consumed fruits. The consumption of fruits and other healthy foods was shown to decrease with increase in age in the children and was replaced gradually by high consumption of fast foods attributable, to increased awareness created by television advertisements. With such a worrying trend, it would only be wise to ban such advertisements from television or stop airing them during children programs. This would greatly reduce the availability of such information to the children and probably reduce their consumption of such products with deleterious impact on their health ( Neville, Thomas Bauman 2005).Advertising Looking for essay on advertising? Let's see if we can help you! Get your first paper with 15% OFF Learn More Another reason why TV advertisements targeting children should be banned is due to their capitalization on naivety of children. Young children may not be able to discern the difference between advertisements and normal programming, and become vulnerable to misleading information. Children lack the ability to know that advertisements are business oriented strategies, and believe in the message fully without questioning its credibility. This has, therefore, left many children purchasing or forcing their parents to purchase commodities they may not necessarily require (India Parenting 2011). Advertisements on TV have a negative effect on the lifestyles of children as they tend to affect their preferences. This, in turn, has a direct impact on family dynamics. The advertisement may make a child conflict with the parents on p articular demands that they make. The product advertised could go against the parents’ code in reference to health or economic status, and the child ends up making life difficult for the parents who may not be in a position to meet these demands (Peace Pledge Union n.d.). There is a likelihood of children’s’ self-image and societal values being affected by the advertisements that may encourage materialism. It is possible that too much advertising targeting children may create a false sense of dissatisfaction or entitlement among the young generation. Psychologists fear that children identities could be negatively influenced by consumerism tendencies developed by exposure to too much advertising or aggressive advertising targeting young children (Media Awareness Network 2010). Counter-argument Banning of television advertisements aimed at children may not be the solution to changing their lifestyles. Those opposed to the ban argue that a ban would be futile since apart from being influenced by the advertisements, children would still be influenced by the actual programming content. The children have other media outlets from which to acquire information from such as computers, magazines, newspapers and radio. The advertisements create the necessary revenue for television companies to air kids’ programs. Some of the programs are very educative and of a help for the children. Therefore, the advertisements should be aired nevertheless. Advertisement of products such as junk foods associated with poor health and obesity in Australia cannot be pointed as the only factor responsible for this trend. Obesity prevalence is also contributed to the lifestyles the children adopt such as the lack of physical exercises. Parents have the responsibility of determining what is appropriate for their children. The foods eaten by children, clothes they wear and types of exercises they do are determined by parents and by the society as a whole. Thus, TV a dvertisements need not be demonized as being responsible for children change in lifestyles (Carter 2006).Advertising We will write a custom essay sample on TV Advertisements Aimed at Children in Australian should be banned specifically for you for only $16.05 $11/page Learn More The Australian Broadcasting Authority has recently banned TV adverts that encourage unhealthy diets and inactive lifestyles, but the effect of this on the national obesity prevalence in children has continued to increase year after year. Furthermore, a link between fast foods advertised often on television, and obesity is not clear cut. European states such as Sweden that banned fast food adverts on TV have not recorded a linear drop in obesity rates (Lavelle 2004). Conclusion From the many studies that have linked lifestyle changes to advertising targeting children, it is evident that the influence of these advertisements should be controlled. Advertisements of junk foods and o ther fancy lifestyles in Australia targeting children should be banned to avoid further deterioration of a young generation currently crumpling with high rates of obesity and related complications. It is similarly important that policies are put in place to control access of such products to children in shops and other outlets, as well as adopting educative approaches on the dangers of certain lifestyles such as labeling such products with warning signs. Embracing healthy lifestyles such as physical exercises and health diets will greatly transform the children’s way of life. On the other hand, advertising is not necessarily bad especially when it aims at educating children. All advertisements targeting children will also be effective if the advertisers take responsibility and offer genuine tips on use of the advertised products instead of solely focusing on unnecessary manipulation of the young minds. Reference List Carter, OB 2006, The Weighty Issue of Australian Television Food Advertising And Childhood Obesity, Health Promotion Journal of Australia, 17(1). Coalition on Food Advertising to Children (CFAC), 2007, Children’s health or corporate wealth? The case for banning television food advertising to children. Web. India Parenting, 2011, Effects of Advertisements on Children, India Parenting pvt. Ltd. Web.Advertising Looking for essay on advertising? Let's see if we can help you! Get your first paper with 15% OFF Learn More Lavelle, P 2004, Ban junk food ads from kids’ TV? The Pulse. Media Awareness Network, 2010, Special Issues for Young Children. Web. Neville, L, Thomas, M Bauman, A 2005, Food advertising on Australian television: the extent of children’s exposure,Oxford Journals, 20 (2). Pp. 105-112. Peace Pledge Union, n.d., Children and Advertising. Web. Sharon, B 1998, A Community View’, Caring for Children in the Media Age, Papers from a national conference, New College Institute for Values Research, Sydney. pp. 101-111. This essay on TV Advertisements Aimed at Children in Australian should be banned was written and submitted by user Mikaela French to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Monday, November 25, 2019

How to Flatten Adjective Stacks

How to Flatten Adjective Stacks How to Flatten Adjective Stacks How to Flatten Adjective Stacks By Mark Nichol Words are highly adaptable in terms of which part of speech they represent, but careful writers should be alert in order to minimize or prevent a linguistic affliction called adjective stacking, which is discussed in this post. Nouns are easily converted to adjectives, as when using the phrase â€Å"dinner table.† Dinner and table are both nouns, but when dinner immediately precedes table, it ceases to mean â€Å"evening meal† and represents an adjective describing a type of table: one used for evening meals. Similarly, â€Å"sport utility vehicle† consists of three words that serve as nouns, but when positioned in sequence, the first two words no longer stand on their own to represent concepts, but rather describe the third noun. Such sequences can extend indefinitely, but the longer the string of adjectives- or the higher the stack- the more difficult it is for readers to parse the components and their interrelationships. Reading from left to right, we recognize the first word as a noun but then correct ourselves when a noun follows it, reclassifying the first word as an adjective. Then we have to conduct the same mental process repeatedly, and when word relationships are not clarified by use of hyphens, the quest for comprehension is complicated. The following list from an actual document represents the problems with adjective stacking; it can be confusing and fatiguing: Penetration testing for key medical devices Biomedical security vulnerability assessments Medical device procurement process consulting Biomedical incident response readiness assessments Medical device security program remediation support Manufacturer vulnerability remediation liaison assistance Oddly, the syntax of the first item enables a quick, clear reading, while the others fail to follow suit. Using the first item as a model, however, one can easily revise the list to improve readability by reordering words and phrases and introducing prepositions (and, sometimes, words representing other functions): Penetration testing for key medical devices Assessments of vulnerability of biomedical security Consulting about the procurement process for medical devices Assessments of readiness regarding response to biomedical incidents Remediation support for medical-device security programs Liaison assistance for remediation of manufacturer vulnerability These revised phrases are less concise but easier to read. Note, too, that one can reorganize the word sequences to various extents; each of these phrases can be revised in more than one way. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Grammar category, check our popular posts, or choose a related post below:50 Idioms About Legs, Feet, and ToesUse a Dash for Number Ranges10 Types of Hyphenation Errors

Friday, November 22, 2019

An Evaluation of the Activities, Reading Books and Watching Movies

An Evaluation of the Activities, Reading Books and Watching Movies Books vs. Movies Which one is better reading a book or watching a movie? People always debate on whether reading a book is better than watching a movie. Movies are just a live action version of a book, but the movies tend to leave out a lot of details one can get from reading the book. Grant it, reading a book takes more time, but a person gets to tap into their imagination more from reading a book than watching a movie. Books are just as great as movies if not better because books have no time limit, give people a better understanding, and they have more detail. Reading a book has no time limit, whereas; movies have a certain time period to get finished in. The books that are made into movies usually do not turn out the way we want them to be. Movies can be ruined by bad actors. The length of the movies determines how much details from the book go into the movie. Sadly, movies are all about the actors more than the details from the book ever were. When reading a book maybe the reader’s imagination was not met when they watched the movie. While reading a book you get a better understanding of the characters thoughts, feelings, and actions because it is written throughout the book itself. Reading a book lets the reader’s imagination flow. When the reader taps into their imagination they can imagine what the book is like visually. One can picture the characters in their head. They can picture what the characters voices sound like. The reader can visualize the scenes and imagine what the places look like according to what they read. People can relate more to a book usually than a movie because books have more detail. Not all the details from reading a book can be pictured in the movies. Typically the movies are worse than the book. Details draw the readers in and the more details they gather the more intrigued they get. When people get intrigued they usually follow what intrigues them. So therefore if they are reading the first book throughout a series it will make them read the other books. When someone picks up a book that they like they tend to find other books that are like the book they read. Reading books are better than movies due to the fact of having no time limit, a better understanding, and way more details. Books draw the reader in more than when a person watches movie. People go watch a movie typically because of actors. Books and movies are both great but books will always last longer. Books have a higher demand than a movie ever will.

Wednesday, November 20, 2019

Does the Christan salvesen's sickness absence management policy meet Essay

Does the Christan salvesen's sickness absence management policy meet its obligations under the DDA' - Essay Example The inter-war years were tough but Salvesen sold a large number of ships and rode out the difficult period. When the post-war whaling boom ended, Salvesen scaled down its involvement and ended its interest. Looking for new growth areas, an experiment with a revolutionary trawler to freeze fish while still at sea led to the purchase of the company's first cold store in Grimsby in 1958, a move that coincided with the birth of the frozen food industry in the UK. The firm's fledgling distribution operations grew as customers requested transport for their frozen produce. The business continued to diversify its operations, moving into food freezing facilities, house building and the offshore oil industry in the early 1970s. Salvesen began to concentrate its activities in the Food Services division, opening cold stores, expanding food processing facilities and winning a major frozen food distribution contract for UK retailer Marks & Spencer. The business grew with the acquisition of Merchants Refrigerating Company in the USA in 1981 and the generator rental company Aggreko in 1984. Aggreko was a success in the 1980s, opening UK depots, growing French operations and expanding into the USA with the acquisition of Electric Rental Systems. ... Salvesen built up its presence in the frozen food sector in mainland Europe with operations in five countries. In 1995 it also acquired a stake in a German industrial logistics business called Wohlfarth. In September 1997 Christian Salvesen decided to concentrate on its core logistics divisions and diverged Aggreko. Since then Christian Salvesen has built up a blue chip client base, developing partnerships with retailers and manufacturers and targeting markets in mainland Europe. In recent years, Salvesen acquired Industrial logistics businesses in Spain, Germany and France. It has since sold both its food and industrial operations in Germany. It is focused on further expansion of its geographic footprint in Europe and developing an integrated European offering of in-market, shared-use networks. Today, Salvesen has operations in seven countries: Belgium, France, The Netherlands, Portugal, Spain, Ireland and the UK. Its chosen market segments are Industrial, Food and Consumer products and it specialises in the strategic management of the outsourced supply chain. These operations are supported by advanced, proprietary ICT systems. The DDA Policy: The Disability Discrimination Act (DDA) covers all UK businesses. The DDA is a UK parliamentary act of 1995, which makes it unlawful for service provider to discriminate against people in respect of their disabilities in relation to employment, the provision of goods and services, education and transport. It is a civil rights law. Other countries use constitutional, social rights or criminal law to make similar provisions. Employment Discrimination laws seek to prevent discrimination based on race, sex, religion,

Tuesday, November 19, 2019

Australiam curriculum Term Paper Example | Topics and Well Written Essays - 1500 words

Australiam curriculum - Term Paper Example From the provincial level, schools are estranged into districts and then into school boards (ACARA, 2011). It is in the school boards that local policies are made that must be in line with the curriculum from the provincial level. In Australia, all students are assured of equal chances to education unlike before. For instance, pregnant students were not allowed to go to school but this has changed and they can now attend learning institutions of their choice. The government has gone further to provide special schools for the physically disabled students for example, the deaf, blind, and crippled. They are no longer denied their rights to education like before and they can even sue the government if they are not attended to. The administration has put strong disciplinary measures which legally punish any student who goes against the school rules. Punishable behaviors include resistance to authority, use of abusive language, or any kind of behavior that the administration may consider a violation of the schools norms The ministry of education is responsible for organizing as well as supervising education at the primary, secondary, and vocational levels because there is no central department in the education system. Unlike other nations where learning is monitored at the federal government, in Australia, all the responsibility of supervising learning as well as assessing students’ and teachers’ performance takes place in the national level. The provincial education system can be compared to the territorial system although they differ in their assessment, curriculum, and education policies (ACARA, 2011). Education starts at the kindergarten which takes in children as young as five years. From the kindergarten, children proceeds to the elementary school at the age of 6 to 12 years then move to the junior high school. Normally, elementary school includes six grades although it can be extended to eight grades. Junior high school acts as a

Saturday, November 16, 2019

Herbal Products for personal casre Essay Example for Free

Herbal Products for personal casre Essay Aromatherapy is complementary and alternative medicine (CAM) technique in which various essential oils (including essences and extracts) derived from plants, flowers, fruits, leaves, herbs, stems, shrubs or trees are utilized to promote healing of the body, mind and the spirit, and to encourage health and well-being of the individual. Aromatic oils have been utilized in healthcare since ancient times by the Egyptian civilization and the Arabs. Modern aromatherapy was given special interest in France. The French found that oils had several anti-septic properties and hence could be utilized to reduce infections. Some of the physicians in France administer essential oils. Certain guidelines mentioned in the ‘aromatogram’ help the physician to decide which essential oil has to be utilized. The patient’s sample of tissues or body fluids is cultured in the laboratory. Different essential oils are added to the growing cultures. The specific essential oil that inhibits growth of the microorganisms is identified and utilized. Essential oils are substances similar to hormones (or chemical messengers) present in the body, that play an important role between cells. It contains about 200 to 3000 different compounds. Studies suggest that they can play a role against cancer, and have other effects such as stimulation (lime), calming (lavender), analgesic (clove), anti-spasmodic and cough suppressant (lavender). On the skin, it seems to have an antiseptic (tea tree), astringent (lemon grass), protectants (sandal wood), stimulant (rose) and cooling (Chamomile) effect. Aromatherapy can be administered in several forms such as skin or external applications (including cosmetic use and applications over the hair), inhalation, and internal consumption. External applications of essential oils involve applying the agents on the skin through baths, massages, friction, compresses, cosmetic use (in the form of creams, masks, compresses, lotions, ointments, etc), hair applications, etc. Such applications help in relaxation, stimulating the skin and make the individual feel more energetic and lively. Several toxic substances and metabolic wastes present on the skin are inactivated and destroyed. It also helps to reduce body aches and reduce swellings. Rarely (5% of the cases), the individual may develop inflammatory disorders of the skin (such as dermatitis), and experience symptoms such as irritation, rashes, pruritis, etc. In such circumstances, the treatment should be discontinued. Internal consumption of essential oils may be required to treat several disorders involving the internal organs (such as the digestive tract). However, some of these oils may damage the liver. Hence, they have to be administered strictly by a physician, and the patient’s condition should be monitored. The essential oil can also be administered utilizing a diffuser or nebulizer (through inhalation). The oils can be utilized to treat several breathing or lung disorders, and to improve mood. The molecules of the essential oils can enter the body through the nose, gain access through the lungs, from where it can diffuse into the bloodstream. It can remain in the blood for 30 minutes to several days. Sprays are also available which provide effect for a short period. Aromatherapy has emerged as a separate branch of science and profession because of the huge benefits. Lavender may increase brain wave functions related with relaxation and stress-release (Balac, 1992). Chronic smokers felt a reduced urge to consume tobacco with aromatherapy (Rose Behm, 1994). The quality of life in individuals with cancer and anxiety improved after being administered Chamomile (Wilkinson, 1995). Stevenson (1994) demonstrated that heart patients requiring surgery felt better when their feet were being massaged with neroli oil. Post-operative patients had reduced nausea and needed fewer painkillers after inhaling peppermint oil (Tate, 1997). In fact aromatherapy can be utilized to treat several conditions such as infections (such as Herpes Zoster Virus, Herpes Simplex Infections, etc), arthritis, skin disorders, musculoskeletal disorders, sleeplessness, anxiety, distress, anticancer therapy problems, anorexia, body aches, etc. Any individual can learn about aromatherapy by reading books, attending seminars or going to school that train in aromatherapy. The National Association of Holistic Aroma-therapists (NAHA) is setting up standards for giving licenses and administering training. The individual who wants to become an aroma-therapist should have a good knowledge and practice of chemistry, botany, human physiology, etc. The aroma-therapist is responsible for administering treatment sessions on the patients such as massages. During the patient’s first session, he/she will ask the questions to get a detailed outlook of the past and present medical history. According to the patient’s complaint and the diagnosis of the condition, he/she will prepare essential oils using different individual components. The massages are similar to the Swedish and the Sports methods. The aroma-therapist also gives complete details of the procedure to the patient, advices about any precautionary measures to be taken and educates the patient about the benefits and risks of the procedure.

Thursday, November 14, 2019

Steroids in Sports Essay -- Athletics Steroid Performance Enhancing Dr

Professional sports are very special in the United States. One reason for this is the spirit of competition. However, steroid use taints this competition. If steroids were to be completely eliminated from sports, the competition would be much more special because athletes would compete with their hearts and will, without an extra boost. Also, since not everybody can be a professional athlete, the elimination of steroid use, in my opinion, would make the fans appreciate the game more and make them feel more relatable. Hopefully someday, fans will be able to watch their favorite sports in such a fashion. Steroid use by professional athletes is bad because doing so can damage an image of an athlete (if the offense is made public), create hazardous health issues for an athlete, and hurt the crediblity of sports. Why Take Steroids? â€Å"Athletes and others abuse anabolic steroids to enhance performance and also to improve physical appearance† (NIDA). The level of speed and intensity of sports at the professional level is extremely high. Therefore, many athletes choose to take steroids in order to improve their body and skills, and to try and match that intensity. Baseball players may choose to take steroids in order to hit the ball harder, which would attribute to more homeruns. Football players may take steroids in order to increase their muscle mass which would in turn improve their blocking and tackling skills, and to also improve their speed. Steroid use by professional athletes constitutes cheating. I believe that athletes should be athletes for one reason, their God-given talent, and not with the help of steroids. The population of professional athletes in the United States is very small, and I find it a shame that many ... ...et back to working hard using the energy and will that they naturally possess, and the credibility of the athletes and their sports would be revived. An issue with this idea is that some athletes have been known to unknowingly take steroids that were banned from their respective sport (i.e. Rafael Palmiero). However, if an athlete were to be put in that position, it would need to be proven that he/she in fact unknowingly took illegal steroids. Otherwise, that athlete should follow the same penalty as those who knowingly and blatantly take steroids. Works Cited ESPN.com news services. "'96 MVP admitted steroid use, fought drug problem." ESPN . 4 May 2006 from . National Institute on Drug Abuse. "Steroids (Anabolic)" NIDA. 15 Apr. 2006 from

Monday, November 11, 2019

Vaccine Refusal Controversy

The subject that I’ve chosen as a controversial healthcare topic is vaccine refusal. The subject of vaccination has long been a controversial topic in healthcare. Universal vaccination initiatives have been met with resistance. There is scientific evidence supporting the benefits of vaccination however, parents and healthcare professionals continue to doubt the effectiveness and safety of vaccines. Vaccine preventable disease continues to be a threat to the public in the United States. The Centers for Disease Control and Prevention (CDC) reports that during 2011, a total of 222 cases of measles were reported. 90% of those cases were associated with importations from other countries. (MMWR. 4/20/12). There are several factors as to why patients refuse vaccination. A misconception regarding side effects is a common reason for vaccine refusal. Parents and/or patients believe that the vaccine is made up of the live virus and can in turn make the recipient ill. They do not understand the process for manufacturing vaccines or the process for which the body creates antibodies. (Fraleigh, J. 5/1/09). Vaccine safety is another reason for vaccine refusal. There is a lack of trust in the federal government, which oversees the approval of vaccine released to be administered. An important factor to vaccine safety is not only the manufacturing process but also maintaining the cold chain for proper vaccine storage. Maintaining the cold chain is an important factor in ensuring that the vaccine being administered is viable. Maintaining the cold chain relies on more than one person or entity. The cold chain begins with the manufacturer and is then transferred to the delivery of the vaccine and the proper storage. The last phase of the cold chain is the administration of viable vaccine to the patient. There are several areas in this process that allow for vulnerabilities in this process as demonstrated by the Office of Inspector General Report from 2012, Vaccines for Children Program: Vulnerabilities in Vaccine Management (Levinson, D. . Regardless of patient and healthcare professional’s refusal to utilize vaccine there is clearly a benefit to vaccination. Vaccine preventable diseases are debilitating and deadly. A good portion of the general public has never seen some of the vaccine preventable diseases such as polio. Therefore, the existence of such diseases is not relevant to some. From 1960 to 1996, measles vaccines had reduced measles cases by 99. 95%. (HHS. 1997) References Centers for Disease Control and Prevention, MMWR, Measles-Unites States, 2011 (April 20, 2012 / 61(15);253-257). Department of Health and Human Services. 1997. Retrieved May 31, 2013 http://archive.hhs.gov/nvpo/concepts/intro6.htm Fraleigh, James M. Vaccination: Compliance and Controversy. May 1, 2009. Levinson, Daniel R. Inspector General. Vaccines for Children Program: Vulnerabilities in Vaccine Management, OEI-04-10-00430. June 2012.

Saturday, November 9, 2019

A Relativistic View of The Ballad of Narayama

First Position Utilitarianism, a branch of moral realism, is a doctrine that attempts to explain the abstract idea of morality. Consequentialism, a broader basis of utilitarianism, defines an action as being right or wrong by saying that the right act in any moral dilemma is that which leads to the greatest good for the greatest number of people. It focuses in on the consequence of an action and declares that this result is the true basis for judgment about the morality of a decision.Utilitarianism takes these ideas a step urther and defines the quality of the consequence of an action as its â€Å"utility'. The only way to fundamentally ensure that our actions are good is to prove that the results of the chosen action were really better than the results of the other possible choice. (2) Second Position Moral relativism is a philosophy that defines morality in a way that directly depends on the individual or group of people involved. One prominent division within moral relativism is the meta-ethical position.The basic proposition behind this argument is that moral Judgment cannot be universalized and in this way morality is relative to he parties involved. This permits any culture to practice anything they see as right, and this belief within the culture makes it the right thing to do. In the mindset of a meta-ethical relativist, we must reserve our Judgment if we see people committing what we feel are morally wrong actions and understand that they may be doing the right thing in the context of their culture. (3) Major Objection A moral relativist would see many flaws in the ideology of utilitarianism.One major objection is that utilitarianism is too intense of a doctrine as it suggests there is always a way to act that would benefit more people. There is inherently too much pressure put on humankind if utilitarianism were to be followed because it requires us to constantly act like â€Å"moral heroes,† claiming anything less would make us bad people. Du e to the fact that there could be a greater good in every decision we make, we would barely be able to live our own lives, develop our own relationships with family and friends, and make our own decisions if we strictly adhered to the doctrine of utilitarianism.This flaw of utilitarianism is exposed in The Ballad of Narayama because the action of killing the elderly when they reach 70 would be deemed orally wrong and incorrect. However, the moral relativist realizes that this contradicts the societal tradition and is therefore the right thing to do. To the naive eye of the utilitarian, killing the elderly immediately seems like a morally corrupt tradition that could never be acceptable. However, the moral relativist understands this practice in the context of the Japanese village and renders it acceptable.Keeping Orin alive would be morally wrong to the relativist because it takes the pressure off of Kesakichi and even Tatsuhei to develop as men of the household. They still have Ori n providing food and working for them and as a result Kesakichi remains naive and immature. The young people in the Japanese village need develop on their own, and so the tradition of the village should be honored regardless of specific cases, like that ot Orin. In ad dition, the elderly Just become another mouth to t cases in the impoverished village. 4) First Rebuttal in most The utilitarian would answer this objection by saying that it would not be for the best to take Orin and all the 70-year-old citizens to the top of Narayama. They would argue that societal tradition should not be followed in this case and it is morally ncorrect to leave the elderly to die in this way. Even if they are a burden to society, the greatest good for the greatest number of people comes when they are kept alive. Our deepest inclinations also seem to tell us that killing any person who lives to be 70 is morally wrong.If they were allowed to live, family units would become stronger, wisdom would be pas sed through the generations, and the elderly could find new ways to contribute to society regardless of their age. Additionally, the utilitarian would disagree with the idea of hoarding food while others go hungry, as they do in the Japanese village. The morally correct action that would lead to the greatest good for the greatest number of people would be to share food and services, never placing your own familys needs above the needs of the society as a whole.To the utilitarian, any acts that can be conceived as selfish are morally wrong and every decision should be made with the community in mind. (4) Second Rebuttal The meta-ethical relativist would respond to this rebuttal by sticking to their convictions and arguing that in the context of this Japanese village, it is best to follow tradition and take the elderly to the top of Narayama. The utilitarian lacks the foresight into the future of the society and naively acts with only immediate benefits in mind; â€Å"To suppose that life has no higher end than pleasure† is â€Å"a doctrine worthy of swine† (RR 600).Although the immediate affects of leaving the elderly atop the mountain to die peacefully may not provide the greatest good for the greatest amount of people, in the long run it pays off and does, in fact, result in the greatest good for society. As for the claim that it is morally wrong if you place your familys need at a higher priority, the meta-ethical relativist would say that this type of elfishness drives society. The providers for a family want to supply as much as they can to their children and this motivates them to work harder.Although the utilitarian would think that it would be best if the Japanese villagers openly shared their food, the moral relativist would understand how the society functions and disagree. If an individual donated any excess they had to the society as a whole, the motivation of individuals within the society would disappear and the Japanese village woul d no longer function properly. The lives of the villagers depend on their planning for the future and hard work in the farms.The competition between workers and the desire to provide for their families is the reason this Japanese village has survived for generations. If a villager knew that any extra work he did or any extra food he grew would be taken away from him, then the villager would not work as hard and would not be as worried about securing his own crops and farming his own land. The moral relativist understands this as the basis for the tradition in the village, as killing the elderly puts responsibility on the other members of society to produce while reducing the number of mouths they have to feed.This tradition should be upheld because it allows for them to make their own decisions and look out for their families. The moral relativist position realizes that the action of killing the elderly once they reach age 70 is morally permissible in the Japanese society depicted i n The Ballad of Narayama. This moral Judgment is not universal, as in most societies this action would be deemed morally incorrect and unacceptable. However, given the economic situation of the village along with the dependence on manual labor, the tradition should be upheld as it is morally best for the society at hand.