Cholera Disease Research Report Essays

Cholera Disease Research Report Essays Cholera Disease Research Report Essay Cholera Disease Research Report Essay Karla Obasi HEA 341 Disease Research Report December 9, 2010 CHOLERA Disease Defined Cholera is an infection of the small intestine that causes a large amount of watery diarrhea. Cholera is a bacterial disease (caused by the bacterium Vibrio cholerae) usually spread through contaminated water. The bacteria, which are found in fecal-contaminated food and water and in raw or undercooked seafood, produce a toxin that affects the intestines causing diarrhea, vomiting, and severe fluid and electrolyte loss. This overwhelming dehydration is the outstanding characteristic of the disease and is the main cause of death. Cholera has a short incubation period (two or three days) and runs a quick course. In untreated cases the death rate is high, averaging 50%, and as high as 90% in epidemics, but with effective treatment the death rate is less than 1%. Historical Perspective During 1883, cholera was epidemic in Egypt. A German physician and bacteriologist, Robert Koch traveled with a group of German colleagues from Berlin to Alexandria, Egypt in August, 1883. Following necropsies, they found a bacillus in the intestinal mucosa in persons who died of cholera, but not of other diseases. He reasoned that the bacillus was related to the cholera process, but was not sure if it was causal or consequential. He stipulated that the time sequence could only be resolved by isolating the organism, growing it in pure culture, and reproducing a similar disease in animals. He was not able to obtain such a pure culture, but did try to infect animals with choleraic material. None became infected. His thoughts and early findings were sent in a dispatch to the German government and shared with the German press. On January 7th 1884, Koch announced in a dispatch that he had successfully isolated the bacillus in pure culture. One month later he wrote again, stating that the bacillus was not straight like other bacilli, but a little bent, like a comma. Â   He also noted that the bacillus was able to proliferate in moist soiled linen or damp earth, and was susceptible to drying and weak acid solutions. Finally, e pointed out that the specific organisms were always found in patients with cholera but never in those with diarrhea from other causes, were relatively rare in early infection, but were extensively present in the characteristic rice water stools of advanced cholera patients. He was, however, still unable to reproduce the disease in animals, reasoning correctly that they are not susceptible. In May, 1884 Koch and his colleagues returned to Berlin where they were treated as n ational heroes. Epidemiology Cholera is a disease that occurs in low income regions of the world where sanitation, food and water hygiene are inadequate. Imported cases occasionally occur in travelers returning from endemic areas. In areas without clean water or sewage disposal (as may occur after natural disasters or in displaced populations in areas of conflict), cholera can spread quickly and have a case fatality rate of as high as 50% in vulnerable groups with limited medical care. The World Health Organization (WHO) reports the emergence of new strains of Vibrio cholerae which now predominates in parts of Africa and Asia, and the emergence and spread of antibiotic resistant strains. Annual global figures (2009) reported to WHO included 221,226 cases and 4,946 deaths from 45 countries. The majority of cases (98%) were reported from Africa where an outbreak, that started in 2008 and lasted for almost a year, spread to South Africa and Zambia. By the end of July 2009, over 98,000 cases and 4,000 deaths were reported in this outbreak. Asia reported an 82% decrease in cases in 2009 compared to 2008, however, reports of acute watery diarrhea, many of which may be cholera, were not included. When cholera first appears in epidemic form in an unexposed population, it can affect all age groups. In contrast, in areas with high rates of endemic disease, most of the adult population have gained some degree of natural immunity because of illness or repeated asymptomatic infections. In this setting, the disease occurs primarily in young children, who are exposed to the organism for the first time, and in the elderly, who have lower gastric acid production and waning immunity. The poor are at greatest risk because hey often lack safe water supplies, are unable to maintain proper hygiene within the home, and may depend on street vendors or other unregulated sources for food and drink. Recent epidemiologic research suggests that an individuals susceptibility to cholera (and other diarrheal infections) is affected by their blood type: those with type O blood are the most susceptible, while those with type AB are the most resistant. Between these two extremes are the A and B blood ty pes, with type A being more resistant than type B. Signs and Symptoms Dry mucus membranes or mouth * Dry skin * Excessive thirst * Glassy or sunken eyes * Lack of tears * Lethargy * Low urine output * Nausea * Rapid dehydration * Abdominal cramps * Watery diarrhea * Rapid pulse * Vomiting The usual incubation period is 2 to 5 days, although it can be as short as several hours. Severe cholera is characterized by a sudden onset of profuse, watery diarrhea accompanied by nausea and vomiting. If left untreated, this can rapidly lead to serious dehydration, electrolyte imbalance and circulatory collapse. Over 50% of the most severe cases die within a few hours? with prompt, effective treatment, mortality is less than 1%. Cholera may be asymptomatic or mild in healthy individuals, with diarrhea as the only symptom. Etiology/Pathophysiology Most of the Vibrio cholerae bacteria in the contaminated water consumed by the host do not survive the highly acidic conditions of the human stomach. The few bacteria that do survive conserve their energy and store during the passage through the stomach by shutting down protein production. When the surviving bacteria exit the stomach and reach the small intestine, they need to propel themselves through the thick mucus that lines the small intestine to get to the intestinal wall where they can thrive. The bacteria start up production of the protein flagellin to make flagella so that they can propel themselves through the mucus of the small intestine. StoIn some animals, including vertebrates, echinoderms, insects and molluscs, the stomach is a muscular, hollow, dilated part of the alimentary canal which functions as the primary organ of the digestive tract. It is involved in the second phase of digestion, following mastication . The stomach is Once the cholera bacteria reach the intestinal wall, they do not need the flagella propellers to move any longer. The bacteria stop producing the protein flagellin, thus again conserving energy and nutrients by changing the mix of proteins which they manufacture in response to the changed chemical surroundings. On reaching the intestinal wall, Vibrio cholerae start producing the toxic proteins that give the infected person a watery diarrhea. This carries the multiplying new generations of the bacteria out into the drinking water of the next host if proper sanitation measures are not in place. Diagnostic Methods Cholera is diagnosed by the stool sample and it keeps out the bacteria, which can cause cholera. Cholera needs immediate action because of watery diarrhea, so the health centre can begin lack of fluids treatment before a final diagnosis is made. A number of tests have been performed to check cholera: * A doctor confirms a diagnosis of cholera by recovering the bacteria from fresh stool sample or from rectal swabs. A dark-field atomic test of fresh feces shows quick moving bacilli allows for a quick, cautious analysis. * Cholera can be established only by the separation of the contributory organism from the diarrheic stools of infected persons. Clinical symptoms are profuse watery diarrhea. Cholera cots, cots with openings to allow fecal output into a bucket, are used to measure volumes of stool loss and fluid repl acement needs. Lab tests include stool gram stain (gram negative rods) culture, dark field microscopy or stool PCR. People must begin treatment even before diagnostic work-up. Treatment Methods The objective of treatment is to replace fluid and electrolytes lost through diarrhea. Depending on your condition, you may be given fluids by mouth or through a vein (intravenous). Antibiotics may shorten the time you feel ill. The World Health Organization (WHO) has developed an oral rehydration solution that is cheaper and easier to use than the typical intravenous fluid. This solution of sugar and electrolytes is now being used internationally. Oral rehydration therapy (ORT) involves the replacement of fluids and electrolytes lost during an episode of diarrheal illness. Diarrheal illnesses are pervasive worldwide, and they have a particularly large impact in the developing world. Children under the age of five are the major victims and account for over 3 million deaths a year due to dehydration associated with diarrheal illness. The World Health Organization (WHO) estimates that over one million deaths are prevented annually by ORT. An oral rehydration solution (ORS) is the cornerstone of this treatment. Between 90 and 95 percent of cases of acute, watery diarrhea can be successfully treated with ORT. Prognosis Most infections are not severe, with about 75% to 80% of infected people not showing any symptoms. These individuals continue to shed the bacteria back into the environment, potentially infecting others with the disease. Because of severe dehydration, fatality rates are very high (25% to 65%) when untreated, especially among infants, young children, older individuals and people with a compromised immune system. Death can occur with adults within hours of infection, but those who recover usually have long-term immunity against reinfection. Prevention and Control Methods The first cardinal rule in preventing cholera and other infectious diseases is routine hand washing. A safe and clean supply of water is the key to cholera prevention. Adequate chlorination of public water supplies and, in some cases, the distribution of chlorine tablets to households with instructions for their proper use are often effective measures. If chemical disinfection is not possible, people can be instructed to boil water before drinking it, but this may be difficult to accomplish, especially in poor countries where fuel may be expensive or unavailable. Measures for the prevention of cholera mostly consist of providing clean water and proper sanitation to populations who do not yet have access to basic services. Health education and good food hygiene are equally important. Communities should be reminded of basic hygienic behaviors, including the necessity of systematic hand-washing with soap after defecation and before handing food or eating, as well as safe preparation and conservation of food. Appropriate media, such as radio, television or newspapers should be involved in disseminating health education messages. Community and religious leaders should also be associated to social mobilization campaigns. Among people developing symptoms, 80% of episodes are of mild or moderate severity. The remaining 10%-20% of cases develop severe watery diarrhea with signs of dehydration. Once an outbreak is detected, the usual intervention strategy aims to reduce mortality ideally below 1% by ensuring access to treatment and controlling the spread of disease. To achieve this, all partners involved should be properly coordinated and those in charge of water and sanitation must be included in the response strategy. Recommended control methods, including standardized case management, have proven effective in reducing the case-fatality rate. The main tools for cholera control are: * proper and timely case management in cholera treatment centers * specific training for proper case management, including avoidance of nosocomial infections * sufficient pre-positioned medical supplies for case management (e. g. iarrheal disease kits) * improved access to water, effective sanitation, proper waste management and vector control * enhanced hygiene and food safety practices; improved communication and public information Today, no country requires proof of cholera vaccination as a condition for entry and the International Certificate of Vaccination no longer provides a specific space for recording cholera vaccinations. The International Health Regulatio ns do not provide a legal basis for countries to require travelers to have proof of cholera vaccination as reference to uch requirements was removed from the Regulations in 1973. WHO does not consider that proof of vaccination plays any useful role in preventing the international spread of cholera and therefore represents an unnecessary interference with international travel. Bibliography 1. Lam C, Octavia S, Reeves P, et al. Evolution of seventh cholera pandemic and origin of 1991 epidemic, Latin America. Emergence of Infectious Diseases. 2010. 2. World Health Organization. Cholera, 2009. Weekly Epidemiology. 2010. 3. World Health Organization. Cholera vaccines: WHO position paper. Weekly Epidemiology. 2010. who. int/cholera/en/index. html 4. World Health Organization. Fact sheet 107: June 2010. Cholera. Available at: who. int/mediacentre/factsheets/fs107/en/index. html 5. Health Protection Agency. Foreign Travel associated Illness in England, Wales and Northern Ireland: 2007 report. London: Health Protection Agency? 2007 6. Wittlinger F, Steffen R, Watanabe H, Handszuh H. Risk of cholera among Western and Japanese travelers. Journal of Medical Travel. 995. 7. Morger H, Steffen R, Schar M. Epidemiology of cholera in travelers, and conclusions for vaccination recommendations. British Medical Journal. 1983. 8. Heymann DL, editor. Control of Communicable Diseases Manual. 18th ed. Washington: American Public Health Association. 2004. 9. Hill DR, Ford L and Lalloo, DG. Oral cholera vaccines: use in clinical practice. Lancet Infectious Research Journal. 2006. 10. Salisbury D, Ramsay M, Noakes K. , eds. Immunization against infectious diseases. Department of Health. 3rd ed. London. 2006.

Coca-Cola Ethical Issue Essay Example | Topics and Well Written Essays - 3250 words

Coca-Cola Ethical Issue - Essay Example Coca-Cola has been engaging in philanthropy in the societies where it operates but it has been found guilty of racial discrimination; they discharge their economic and legal responsibilities as well but they have not been able to remain ethical in their stand on several issues. The top managers and the directors are the ethics teachers of an organization. They serve as a role model because their behavior and actions reveal, test and shape the character of the organization. Coca-Cola claims to lead by example (Company website) but reports suggest otherwise. Clement (2006) believes that top management commitment is essential to develop an ethical organizational culture. Ethical decision making has to be integrated into a firm’s culture. The antitrust dispute and the channel stuffing could happen because of lack of top management commitment to the organization. The top management commitment is not surprising given the high turnover of top management. While the firm does have ethi cs programs and codes of conduct but the success of such efforts is limited unless the support of top management is forthcoming. Because of frequent changes in top management, the company was ill-equipped to handle issues internally. The filing of a whistle-blowing suit by a mid-level employee demonstrates that their procedure for handling internal complaints was inadequate. Whistle-blowing occurs when management and employee relationship lacks professionalism (Kaplan & Kleiner, 2000). Whistleblowing becomes essential for companies such as Coca-Cola where the top management is unaware of events taking place at the lower level. Small issues can be handled as a part of the daily routine but remain neglected. Employees bring it to the notice of the seniors only when the situation becomes difficult. When Whitley disclosed accounting irregularities he sent a detailed report to the President of the company but instead of dealing with it internally and professionally, he was fired (Ford, Stephens & Cooper, 2007).

Business process management Essay Example | Topics and Well Written Essays - 500 words

Business process management - Essay Example Finally are investments: getting the maximum return on each investment by certifying that they operate as projected. Process perspective business also tears down walls of the structural aspects of the company and attempt to avoid operating silos. These silos cause each departmental structure to depend solely on its purpose aside from understanding its contribution and value within the organisation. Strategic value of this perspective is from not only the analysing of the existing process, but also learning which areas need improvement. The supporting processes, which are used to achieve goals, are business process improvement. This is the core of process perspectives. Business processes need to be created and instilled to add value and contention to the company, not the inclusion of unnecessary actions. The result of a finely created business process results in value for the consumers through increases in overall effectiveness and lower costs for the business through higher efficacy. Process development is usually seen as an automated process that results in job losses. Even if these are results of process improvements, this is not the ultimate reasoning for it. Process perspective is defined as the interrelated sequential set of actions and responsibilities that turn input into output. The focus of cross-functional and optimal values is the goals of the organisation.

Pablo Neruda: Stylistic Elements and Literary Devices

Pablo Neruda: Stylistic Elements and Literary Devices Language A: English; Written assignment essay – Pablo Neruda’s poems â€Å"How has Pablo Neruda used stylistic elements and literary devices in his poems?† Deriving his name from a Czech Republican poet named Jan Neruda, the Chilean poet with a Spanish background, Neftali Ricardo Reyes’ life was always kaleidoscopic. His life was subjected to a multitude of colours like the Spanish Civil war, being a ‘Consul General’ in Mexico, communism and exile. From being a prolific poet to donning a prominent political persona, he mustered awards like the International Peace Prize (1950) and even the Nobel Prize in Literature (1971). Born in 1904, time set him up perfectly to be part of the surrealistic art movement of the early 20th century. As his poetic career went, he predominantly wrote poems that featured intimacy and endearment, evident history and open political agendas. Quite interestingly, it is said that he even symbolized the colour of ink that he used to write in. As it goes, he manoeuvred the mighty pen that put to use green coloured ink as he was of the opinion that the colour stood for hope and desire. From an analytical point of view, it may seem that a load of meaning may have been lost during the time of translation of all his, Pablo’s, poems because all were composed in his mother-tongue, Spanish. Although, there are many of them in which Neruda has encompassed numerous stylistic elements and literary devices which appended figurative language, sound techniques and structure, and this makes it logical even having gone through the Spanish-English translation. When taken into account holistically, Pablo Neruda’s poems present him as the ever-present voice and using his talent of rigorous personification, he speaks as a seer in all of them. This is because he mostly speaks in first-person, that is, â€Å"I†¦Ã¢â‚¬ . Moving on, the structures of his works and the language he portrays them in are affected greatly by his vivid life. At age thirteen, despite his father’s dissent, Pablo was encouraged by Gabriela Mistral (also a Nobel Prize in Literature awardee) to publish his first work â€Å"Entusiasmo y perseverancia† (Enthusiasm and perseverance). He continued then on under a pseudonym. After having completed his college, and studying French, he wrote entire sets of poems, the most celebrated of which is ‘Veinte Poemas de Amor y una Cancià ³n Desesperada’ (Twenty love poems and a song of despair). To continue describing his life anymore would be a futile exercise as I will deviate from my primary top ic. From my understanding, I think a part of Pablo Neruda’s unexcelled success as a romantic poet could be attributed to his utilitarian stylistic elements and literary devices. The very first of which is imagery. His use of imagery has associated significant facets of nature to his personal poetic experience and this gives the reader something interesting. More than experiences, it is his emotions that talk volumes. The fact that he found and embraced his creativity in many of his poems, progressing in time, is one that engages a reader even further. Another explanation could be that his fixated inclusion of personification along with imagery, in parts of ‘Veinte Poemas de Amor y una Cancià ³n Desesperada’ presented the majesty of the human figure and the splendor that is possessed by the female human body. These can be found in the lines, â€Å"Body of a woman, white hills, white thighs, you look like a world, lying in surrender†¦Ã¢â‚¬ . If we throw light on another poem, â€Å"If You Forget Me† is an example where Pablo utilized an impressive diction to help the reader comprehend the words he structured in his unique format. His unique format basically is a format-free structure and therefore, is a free verse. Despite the inconsistent pattern of the poem, elements of rhyme can affirmatively be found. This is evident in the lines, â€Å"But if each day, each hour, you feel that you are destined for me with implacable sweetness, if each day a flower†. When we move on to Pablo’s acclimation to being a more sensual poet, he has strategically placed numerous metaphors in his twenty poems from the aforementioned set. A random example of a metaphor could be, â€Å"es tan corto el amor† from the twentieth poem in ‘Veinte Poemas de Amor’. It is Spanish for â€Å"love is so short† and the essence of this, at its core, is the â€Å"love is time† allegory. As we go ahead, a reader would notice that in the course of his twenty love poems, Neruda has effectively realized the need of repetition via the reiteration of common metaphors. Maybe because all his twenty poems (and the others) hold interconnected themes of love, nature, etc. Repetition is also an influential literary device when reading â€Å"Tonight I Can Write The Saddest Lines†. Neftali devoted his life to writing about love and intimacy, additionally, he married thrice. This suggests that the man stayed in love for most of his time, though the topic that his love-conquests met closure or not is totally something apart. He repeats the titular lines thrice (up until the 11th line only) and this, one can assume, expresses his sense of loneliness and solitude and the fact that perchance he will never ever have back that one woman (many women, actually) he loved and cared for with all his heart. These emotions are apparent in the lines, â€Å"Tonight I can write the saddest lines. To think that I do not have her. To feel that I have lost her. To hear the immense night, still more immense without her. And the verse falls to the soul like dew to the pasture†. Picking up from where I wrote of ‘If You Forget Me’, symbolism and personification play a humungous role abiding by which Pablo benevolently grants many vivid things basic human characteristics. This encompasses the aspect of personification quite illustratively when he talks of â€Å"aromas, light and metals† as the things that carried (reminded him of) him to his love. Along with this, Neruda so diligently symbolized him being intimate with the love of his life even when he inhaled his last, that it efficiently coloured the mood and atmosphere of the poem, permitting the reader to ponder upon the same. Coming back to square one, I strongly feel that all his decisions (Pablo’s) as a poet, when employing each and every literary device and stylistic element that he has, have stalwartly built him a reputation that has been, is and will be successful enough in keeping readers beseeching the magic that his motifs and themes have created and presented the curious reader with. In general terms, Pablo does not usually have a plot or even a consistent structure for that matter. Nevertheless, this does not necessarily mean that a conventional reader would be subject to ennui. Pablo has made sure that the polychromatic and vibrant mix of stylistic elements and literary devices such as personification, symbolism, imagery, repetition, etc., that he incorporates every time keeps the reader zealous. I think Neftali is unique in his way of painting emotions, love and loss especially, and this is something that he should always be commended for.

Exceptionalism: Native Americans in the United States and Pew Research Center Essay

The idea of American exceptionalism is not a new one. Thomas Jefferson spoke of civilizing the Indians many believed they were savages. Surely the Native Americans thought the white newcomers were the savages. The white men forced the Natives off of the â€Å"new† land and proceeded to murder them. The United States continues this tradition today, going into countries where we are not welcome, and trying to change them, make them more like us. What I can gather from reading Wilfred McClay’s, The Founding Fathers, is that he believes America is what is because of our past. From the time the Europeans came to America to settle, we have believed we are superior. Mr. McClay states that we need to stay connected to past and learn from those who discovered our great Nation (McClay 2006). Following his writing was not easy, it did not seem quite clear. It seems as though he feels Americans place themselves on a pedestal, but that is why our country is so great. Americans justify their actions by making our own stories; we teach people what we want them to know, not what truly happened. Howard Zinn does not feel Americans should insist on exceptionalism (Zinn 2005). The United States does not have the right to push its beliefs on the other nations of the world. He discusses the issues of American Superiority in his article, The Power and Glory. According to Mr. Zinn, there is a growing trend among Americans who refuse to accept that we are a superior people. A 2011 Gallup Poll confirms this statement. In 2002 approximately 60% of Americans believed our culture was superior to others (Pew Research Center 2011). In 2011 number dropped to 49% (Pew Research Center). I agree with Howard Zinn in that Americans are not exceptional, we are from other people, just as each individual is different. Although many believe we are better because we have so much freedom, and we are the land of opportunity, we are not. We have homeless people, our politicians are corrupt, and children go to bed hungry. The United States bully’s other countries for our own self-interest. Decisions are made to take control of other countries. What other military has bases all over the planet? The United States needs to take care of its own people, and then it will be exceptional. I have been to other countries, and in my eyes, they seem to be doing it right, but I am sure they have their own issues as well. Bibliography McClay, Wilfred M. 2006. The Founding Nations. First Things. March 2006. Accessed January 24, 2015. http://www. firstthings. com/article/2006/03/the-founding-of- nations Pew Research Center. 2011. The American-Western European Gap. Pew Research Center. November 17, 2011. Accessed January 29, 2015. www. pewglobal .org/2011/11/17/the-american-western-european-values-gap/ Zinn, Howard. 2005. The Power and the Glory. Boston Review. June 1,2005. Accessed January 25, 2015. http://bostonreview. net/zinn-power-glory.

Psychology of aging Essay

As people age, they become vulnerable to various diseases such as diabetes among others. Diabetes is a disease that affects many of individuals all around the world and arises when there is a high level of sugar in the blood for an extended period of time. There exist three known types of diabetes- Type1, which affects mostly the younger population; Type II, that affects population above 40; and gestational diabetes which affects women during the third trimester of their pregnancy. Factors that give rise to diabetes include hereditary factors, being overweight and problem with beta cells located in the pancreas (Jack, 2006, 45). I) Type I This occurs when the pancreas produces little or no insulin. Thus patient of this type of diabetes have to receive daily injections of insulin. The most affected are the children and young adults but can also affect people of other ages. Type I diabetes is caused by destruction of beta cells resulting from malfunctioning of the body’s immune system (Jack, 2006, 71). II)Type II In this case, the beta cells do not produce enough insulin to meet the needs of the body. Moreover, the cells in the body do not react appropriately to the available insulin because they cannot admit glucose through their cell membranes. The type II nature of diabetes is most vulnerable to aging people (Jack, 2006, 71) Though diabetes has no cure it can be controlled through diet, proper medication and exercise. Campaigns on how to best manage the disease is important in avoiding adverse effects on the body. Old and aging people need to take excessive care with their diets and how they exercise their bodies. Care and attention should also be given to the aging people especially those who are diabetic.

Analyzing Rachel Carson’s “the Obligation to Endure” Essay

Analyzing Rachel Carson’s â€Å"The Obligation to Endure† In her essay â€Å"The Obligation to Endure†, Rachel Carson alerts the public to the dangers of modern industrial pollution. She writes about the harmful consequences of lethal materials being released into the environment. She uses horrifying evidence, a passionate tone, audience, and the overall structure of her essay to express to her readers that the pollution created by man wounds the earth. There are many different ways that pollution can harm the environment, from the nuclear explosions discharging toxic chemicals into the air, to the venomous pesticides sprayed on plants that kills vegetation and sickens cattle. The adjustments to these chemicals would take generations. Rachel†¦show more content†¦This is an efficient strategy. It makes her audience want to get involved and preserve the natural resources the environment has to offer. In her essay she describes the devastating effects chemicals have on the environment with such conviction; it might make the re ader feel obligated to make changes in his or her own life to help the natural world. Rachel Carson uses an assertive tone to get her point across. She has a one-sided argument and is very aggressive to those who oppose her point of view. She is very effective at stating her opinion to her audience. In her essay Rachel Carson targets anyone who will listen as her audience. She wants to inform human beings of the effects chemicals have on the environment. Rachel Carson’s audience had little knowledge of the effects radiation and pesticides might have on nature or to themselves. She successfully enlightened her audience to the harm man was causing to the environment not only presently, she also wrote of future ramifications. She predicts â€Å"Future historians may well be amazed by our distorted sense of proportion. How could intelligent beings seek to control a few unwanted species by methods that contaminated the entire environment†¦?† (Carson 615). This statem ent might make her audience scrutinize their actions through the eyes of future generations. Rachel Carson used cause and effect, problem and solution, compare and contrast, andShow MoreRelatedEssay on Silent Spring - Rachel Carson30092 Words   |  121 PagesSilent Spring Rachel Carson Online Information For the online version of BookRags Silent Spring Premium Study Guide, including complete copyright information, please visit: http://www.bookrags.com/studyguide-silentspring/ Copyright Information  ©2000-2007 BookRags, Inc. ALL RIGHTS RESERVED. The following sections of this BookRags Premium Study Guide is offprint from Gales For Students Series: Presenting Analysis, Context, and Criticism on Commonly Studied Works: Introduction, Author BiographyRead MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words   |  656 Pagesindentured to Europeans, but it amounted to less than 3 percent of Chinese emigrants and 10 percent of Indian overseas emigrants, and had largely peaked by the 1870s. Like European migrants, most Asian migrants were free or organized through debt obligations to other migrants (although most Indian migrants still worked on European-owned plantations, recruited, paid, and organized by Indian labor recruiters).16 The swell in free global mobility in the middle of the nineteenth century corresponded with