Thursday, March 26, 2020

Fouridation Essays - Water Fluoridation, Fluoride, Dental Fluorosis

Fouridation In 1931 at the University of Arizona Agricultural Experiment Station M. C. Smith, E. M. Lantz, and H. V. Smith discovered that when given drinking water supplied with fluorine, rats would develop tooth defects. Further testing by H. T. Dean and E. Elove of the United States Public Health Service confirmed this report, and stated that what is known as mottled tooth. Mottled tooth is a condition in which white spots develop on the back teeth. Gradually the white spots get darker and darker until the tooth is eroded completely. This was believed to be caused by fluorine in drinking water (Behrman pg. 181). A strong uproar was heard when this was released and people wanted all fluorine out of their water. But later tests concluded that communities with high levels of fluorine in their drinking water suffered less dental cavities. Further testing concluded that at least 1.0 parts per million of fluorine could help to prevent cavities, but more than 1.5 PPM would cause mottled tooth, so basically a little fluorine would be okay but a lot of fluorine would be bad (Behrman 182). In 1938, with this information, Dr. Gerald Cox of the Mellon Institute began to promote the addition of fluoride to public water systems, claiming that it would reduce tooth decay, however there were two major obstacles in his path, The American Medical Association, and The American Dental Association. Both associations wrote articles in their journals about the dangers of fluoridation of water supplies. The American Dental Association wrote the following in the October 1, 1944 issue: We do know the use of drinking water containing as little as 1.2 to 3.0 parts per million of fluorine will cause such developmental disturbances in bones as osteoslcerosis, spondylosis and osteoperosis, as well as goiter, and we cannot afford to run the risk of producing such serious systemic disturbances in applying what is at present a doubtful procedure intended to prevent development of dental disfigurements among children. (Yiamouyiannis pg. 138) Despite these warnings Dr. Cox continued to promote fluoridation of water supplies and even convinced a Wisconsin dentist, J. J. Frisch to promote the addition of fluoride to water supplies in his book, The Fight For Fluoridation. Frisch soon garnered the support of Frank Bull. Frank Bull organized political campaigns in order to persuade local officials to endorse fluoridation. This began to apply heavy pressure on the United States Public Health Service and the American Dental Association. (Yiamouyiannis pg. 139) In 1945 before any tests had been proven to show that fluoride reduced cavities, it was added to the drinking water supply of Grand Rapids, Michigan. This was done as a test. It would be the experiment to see if fluoride would decrease the number of cavities. The data would be collected periodically over the next five years, and in 1950 the data showed that the number of cavities was decreasing, but in the town of Muskegon, which did not have a fluoridated water supply, cavities decreased by the same margin. However the information about Muskegon was covered up (Waldbott pg. 262). A few days after the information about Grand Rapids was released the United States Public Health Service called a press conference in which they said that: Communities desiring to fluoridate their communal water supplies should be strongly encouraged to do so. (Waldbott pg. 263) In June 1951, dental health representatives from around the U. S. met with dental health officials to discuss the promotion and implementation of fluoride. It was at this conference that the United States Public Health Service formally endorsed fluoridation. It had finally succumb to the pressure. Two years later in 1953, the American Dental Association also began to support fluoridation, when they released a pamphlet, sending it to every dentistry office in the U. S. The pamphlet told the advantages of using fluoride, encouraged acceptance and use of fluoride, and sought to overcome public resistance to fluoride (Coffel). From 1953 till 1977 the only debates going on about fluoridation was how to fund it. Most organizations supported fluoridation, and those that did not soon did, including, the National Research Council, the American Water Works Association, the American Medical Association, and the World Health Organization. All of these organizations endorsed fluoridation (Waldbott pg. 277). However in 1977, the fluoridation controversy was brought back up by John Yiamouyiannis. A committee was commissioned to clear up the fluoride controversy once and for all. But it did not, it just raised it even more. Yiamouyiannis led this committee. Yiamouyiannis in his statement to

Friday, March 6, 2020

The Odyssey Themes and Literary Devices

The Odyssey Themes and Literary Devices The Odyssey, Homers epic poem about the decades-long journey of Trojan War hero Odysseus, includes themes such as cunning vs. strength, coming of age, and order vs. disorder. These themes are conveyed with the use of a few key literary devices, including poems-within-a-poem and flashback narration. Cunning vs. Strength Unlike Achilles, the Iliad protagonist known for his physical strength and prowess in combat, Odysseus earns his victories through trickery and cunning. Odysseus’ cleverness is reinforced throughout the text by the use of epithets accompanying his name. These epithets and their translations include: Polymetis: of many counselsPolymekhanos: many-devicedPolytropos: of many waysPolyphron: many-minded The triumph of cunning over strength is a running theme in Odysseus’ journey. In Book XIV, he escapes the cyclops Polyphemus with his words rather than a traditional duel. In Book XIII, he disguises himself as a beggar in order to probe the faithfulness of the members of his court. When he listens to the bard Demodocus retell the end of the Trojan war and the building of the Trojan horse- his own invention in Book VIII- he weeps â€Å"like a woman,† realizing how dangerous his own cunning is. What’s more, Odysseus’ cunning is almost matched by the intelligence of his wife Penelope, who manages to remain loyal to Odysseus and stave off her suitors in his absence through trickery and cunning. Spiritual Growth and Coming of Age The first four books of The Odyssey, known as Telemacheia, follow Odysseus’ son Telemachus. Odysseus has been absent from Ithaca for two decades, and Telemachus sets out to uncover his father’s whereabouts. Telemachus is on the brink of manhood and has very little authority in his own household, as he is besieged by suitors seeking to marry his mother and rule over Ithaca. However, thanks to Athena, who teaches him how to behave among Greek leaders and takes him to visit Pylos and Sparta, Telemachus gains maturity and knowledge. Ultimately, he is able to serve as an ally to his father when it comes time to slay the suitors, a scene that demonstrates how much Telemachus has matured. Odysseus undergoes spiritual growth of his own, becoming less brash and more thoughtful over the course of his journey. At the start of his journey, Odysseus is brash, overconfident, and taunting, which results in numerous obstacles and delays. By the time he returns home, Odysseus has become more cautious and careful. Order vs. Disorder In The Odyssey, order and chaos are represented by the contrasting settings.   The island of Ithaca is orderly and â€Å"civilized†: inhabitants tend to animals and agriculture, engage in handiwork, and lead orderly lives. By contrast, in the worlds visited by Odysseus during his travels, plants grow freely and the inhabitants eat anything that they find. These worlds are depicted as obstacles to Odysseus journey, threatening prevent him from returning home, Consider the Lotus Eaters, who spend their days languorously eating lotus plants; the lotus plants cause a sleepy apathy that Odysseus and his crew have to escape. Another example is the cyclops Polyphemus. Polyphemus, who reaped the fruits of his island without labor, is depicted as one of Odysseus main antagonists. Poems Within a Poem The Odyssey features two bard-like characters, Phemius and Demodocus, whose roles offer insight into the ancient art of oral poetry and storytelling. Both Phemius and Demodocus tell their court audience stories tied to the heroic cycle. In Book I, Phemius sings of the ‘returns’ of other Trojan War heroes. In Book VIII, Demodocus sings about the disagreements of Odysseus and Achilles during the Trojan War, as well as the love affair of Ares and Aphrodite. The vocabulary used to describe the poetic practice suggests that it is a performative art intended for an audience of listeners and accompanied by a lyre. In addition, both bards took requests from their audience: â€Å"But come now, change thy theme,† Demodocus is asked in Book VIII. Such requests suggest that these poets had a wide repertory of tales to draw from. Flashback Narration The narration of The Odyssey begins with Telemachus’ journey. Then, the narrative moves back in time, as Odysseus recounts his journeys for the length of three entire books. Finally, the narrative moves forward in time to Odysseus return to Ithaca. The most notable flashback in the text is the multi-book tale recounted by Odysseus himself, but other sections feature flashbacks, as well. The poem utilizes flashbacks to describe events of the past in detail, including the end of the Trojan War and the return of other war heroes.