Data exchange Essay Example | Topics and Well Written Essays - 500 words

Data exchange - Essay Example 3D-XML format supports seamless integration with a number of office productivity software and popular web browsers; for example, 3D-XML files can be embedded into a Word or PowerPoint document by a simple drag-and-drop operation (James 2006). 3D-XML technology makes 3D data accessible to the extended enterprise as a whole, hence, enabling users to add extra dimension to their documentation as well as improve their collaboration with others (James 2006). 3D-XML allows incorporation of PLM (Project Life Cycle Management) information into various forms of communication such as technical documentation, maintenance manuals, marketing brochures, websites, emails and many others. (Dassault Systems n.d.) According to Leondes (2002, p. 379), ‘IGES is a standard used to exchange graphics information between commercial CAD systems’. He further described that IGES includes four sections: the Start Section that provides a human readable prologue to the file, the Global Section that contains information describing the preprocessor and information needed by postprocessor to handle the file, the Directory Entry Section which provides an index and contains attribute information and topological information about each entity, and the Parameter Data Section that contains geometrical parameter data associated with each entity (Leondes 2002, p. 379 – 380). Ball, A, Ding, L & Patel, M 2008, ‘An Approach to Accessing Product Data across System and Software Revisions’, Advanced Engineering Informatics, vol. 22, no. 2, pp.222-235, viewed 7 November 2008, http://www.ukoln.ac.uk/projects/grand-challenge/papers/ball.etal2008aap.pdf Leondes, CT 2002, Database and Data Communication Network Systems: Techniques and Applications, vol. 2, viewed 7 November 2008,

Boeing Aircraft Company Research Paper Example | Topics and Well Written Essays - 500 words

Boeing Aircraft Company - Research Paper Example Nevertheless, the company has been taking little interest on the satisfaction of the customer and segmentation of the market in order to concentrate on a specific market. Instead, the company has been generalizing the market in order to earn trust of all customers (Norris & Wagner, 2005). On the other hand, Airbus has concentrated on diversifying the market in order to increase its market size. In addition, the company has segmented the market an aspect that has enabled it to position itself strategically in the market and earn customer loyalty. Initially, airbus was struggling financially but the move by Boeing Company to concentrate on huge aircrafts that require heavy investment gave the company an advantage over its competitor. Instead, the company has concentrated on producing aircrafts of all sizes in order to satisfying the varying demands in the market (Newhouse, 2007). One of the major similarities between two companies is that if one removes the name of the company in the specification sheet, the forthcoming Airbus A350 XWB commercial jet can easily be confused with that of Bowing 787 Dreamliner. The production process is so similar that it will take someone sometime before distinguishing the two (Norris & Wagner, 2005). Secondly, A350 of Airbus will be manufactured with approximately 53% of carbon fiber while 787 aircraft that belong to Boeing Company will be made of 50% of carbon fiber. Both aircrafts have the ability to fly for eight thousands miles without the need of being refueled (Norris & Wagner, 2005). In terms of fuel consumption, A350 has the capacity to consume 25% less in comparison with that of Boeing. Nevertheless, Boeing 787 is claimed to have been made to consume 15% fuel less in comparison to a similar-sized Boeing 767 (Peng, 2009). With the increasing rivalry between the two companies, mostly, the companies are

African Americans and the Civil War Essay Example for Free

African Americans and the Civil War Essay In the world we live in many people take a lot for granted. Just the small simple things people don’t really appreciate, being ungrateful for the things that have been given to them. Many people and different situations have paved the way for our generation to become much easier to live in. African Americans during the civil rights movement had to face a lot of trills in order to make the world a better place. Many people don’t appreciate that because they are unaware of just how much grief African Americans had to go though to create a path for the upcoming generation. African Americans faced many hardships during the civil rights movement, some of those hardships were segregation, voting rights, and assassination of prominent African American leaders. Segregation was such a big obstacle for African Americans because not only were they not allowed to go certain places it became bigger than that. Everything in African Americans lives were split in half. There were white only signs places all over there towns. White only signs for bathrooms, restaurants, and water fountains. Everything was separated between the two races blacks and whites. One event that really stuck out like a sore thumb was The Montgomery Bus Boycott. During, the time of segregation blacks were allowed to ride the buses, but many rules had to apply. Blacks had a black’s only section on the bus that could be moved in any location of the bus. That means that the blacks’ only sign could be moved in front of two rows on the bus if that’s what the bus driver wanted. Black riders had to pay their bus far on the front of the bus and get off to walk to the back of the bus to ride. Some bus drivers would allow the blacks to pay and when the step off the bus the bus driver would drive away and leave them. When blacks did receive a chance to ride on the bus, if a white person did not have a seat to sit in a black person had to give up their seat. The blacks of Montgomery, Alabama, decided that they would boycott the city buses until they could sit anywhere they wanted, instead of being relegated to the back when a white boarded. On December 1, 1955, Mrs. Rosa Parks, an African American seamstress, was arrested in Montgomery, Alabama for not standing and letting a white bus rider take her seat. The plan to stop the whites from making the blacks move was the boycott. Blacks would no longer ride the buses anymore. That means that the bus companies were losing a lot of money. Blacks would walk to work or school and even carpool, but would not step foot on the buses. The boycott continued for over a year. Eventually, the United States Supreme Court put an end to the boycott. On November 13, 1956 the Court declared that Alabamas state and local laws requiring segregation on buses were illegal. On December 20th federal injunctions were served on city and bus company officials forcing them to follow the Supreme Courts ruling. African Americans had to face a lot just so that they could be treated as an equal on the bus. Segregation played a huge role in the school system. In public schools more so than any. That’s what stated the big flare Brown vs. Board of Education. The 1954 United States Supreme Court decision in Oliver L. Brown vs. the Board of Education of Topeka (KS) is among the most significant judicial turning points in the development of our country. Originally led by Charles H. Houston, and later Thurgood Marshall and a formidable legal team, it dismantled the legal basis for racial segregation in schools and other public facilities. Brown vs. Board of Education was not simply about children and education. The laws and policies struck down by this court decision were products of the human tendencies to prejudge, discriminate against, and stereotype other people by their ethnic, religious, physical, or cultural characteristics. Ending this behavior as a legal practice caused far reaching social and ideological implications, which continue to be felt throughout our country. The Brown decision inspired and galvanized human rights struggles across the country and around the world. The U. S. Supreme Court decision in Brown began a critical chapter in the maturation of our democracy. It reaffirmed the sovereign power of the people of the United States in the protection of their natural rights from arbitrary limits and restrictions imposed by state and local governments. These rights are recognized in the Declaration of Independence and guaranteed by the U. S. Constitution. Brown was giving African Americans the opportunity to be accepted as an individual and not just as a race. Now, you would think that after the Brown vs. Board of Education whites would accept African Americans and treat them better. That was not the case and segregation did not stop there. Although, many people had hoped that it would it took the Civil Rights Act of 1964 to really make a change. The Civil Rights Act of 1964 was a landmark piece of legislation in the United States that outlawed major forms of discrimination against blacks and women, and ended racial segregation in the United States. It ended unequal application of voter registration requirements and racial segregation in schools, at the workplace and by facilities that served the general public. Once the Act was implemented, its effects were far-reaching on the country as a whole and had an immediate impact on the South. It prohibited discrimination in public facilities, in government, and in employment, invalidating the Jim Crow laws in the southern U. S. It became illegal to compel segregation of the races in schools, housing, or hiring. After passage of the law, the NAACP was the only major civil rights organization to maintain a large membership in the South, where it concentrated on organizing the ongoing struggle for black civil rights. During 1965-75, the NAACP remained committed to using litigation to challenge racial injustice. African Americans had to fight hard to get what they deserved and it took a lot of patients and time to receive change but it finally happened. That is we segregation ended and Africans were free to sit, eat, talk, shop, and work anywhere they wanted. Being able to vote is a very important ordeal. Many people in this day and time take advantage of being able to voice their opinions. Not taking advantage of who we desire to have in office is a sign of being ungrateful. African Americans were not given that right years ago. African Americans had to fight just so that they could vote. That’s when the Voting Act of 1965 came in play. Before, this Act was enforced African Americans had to take a literacy tests and pay poll taxes. The Voting Rights Act of 1965 abolished literacy tests and poll taxes designed to disenfranchise African American voters, and gave the federal government the authority to take over voter registration in counties with a pattern of persistent discrimination. Echoing the language of the 15th Amendment, the Act prohibits states from imposing any voting qualification or prerequisite to voting, or standard, practice, or procedure to deny or abridge the right of any citizen of the United States to vote on account of race or color. The Act was signed into law by President Lyndon B. Johnson, a Democrat, who had earlier signed the landmark Civil Rights Act of 1964 into law. Being able to vote was an honor and so many people don’t even both to go vote during the elections today. African Americans fought for the right to vote without having to take tests or pay poll taxes and people still don’t go out to vote. That is taking voting rights for granted. Being an African American during the civil rights movement was a challenge, but being an African American woman was even difficult. That’s when the period of women’s suffrage played its role. Women’s Suffrage is the right of women to vote and to run for office. The expression is also used for the economic and political reform movement aimed at extending these rights to women and without any restrictions or qualifications such as property ownership, payment of tax, or marital status. Being a woman in this time period restricted of many rights. Womens suffrage has been granted at various times in various countries throughout the world, and in many countries it was granted before universal suffrage. Without women’s suffrage women would still be restricted to make decisions and just be limited to being mothers and wives. The women’s suffrage broke that cycle. The best way to leave a positive mark on the world is being a leader. It takes a lot of heart, courage, and sacrifice, in becoming a great leader. Leaders are persons that people look up to. They depend on a leader to give them hope to carry on and a positive role model to look up to. There were not too many people that wanted to take the position of being a leader, but a few chose to step up to the plate. African Americans needed kind and encouraging words to help uplift them during the civil rights movement. Two great leaders Dr. Martin Luther King Jr. and Melcolm X took on a job to lead the world into a better place called freedom. The two leaders gave African Americans hope to continue on when they wanted to just give up. African Americans depended on these two prominent leaders to strengthen them. African Americans during the civil rights movement needed to relay on someone and those leaders were the perfect ones. No one would have ever been ready for what was expected to come. For years African American have been told what they could and couldn’t do. They have been talked about, abused, lied on, and have had everything taken from them. But, still they have stayed strong through it all. When all they had were two great prominent leaders and they were taken from them as well they still stayed strong. Two great prominent leaders were assonated. Dr. Martin Luther King Jr. and Malcolm X. Martin Luther King Jr. was an American clergyman, activist, and prominent leader in the African American civil rights movement. He was best known for being an iconic figure in the advancement of civil rights in the United States and around the world, using nonviolent methods following the teachings of Mahatma Gandhi. King was often presented as a heroic leader in the history of modern American liberalism. A Baptist minister, King became a civil rights activist early in his career. He led the 1955 Montgomery Bus Boycott and helped found the Southern Christian Leadership Conference in 1957, serving as its first president. Kings efforts led to the 1963 March on Washington, where King delivered his I Have a Dream speech. There, he expanded American values to include the vision of a color blind society, and established his reputation as one of the greatest orators in American history. But, as people have said â€Å"all things must come to an end. † At 6:01 p. m. on April 4, 1968, a shot rang out. Dr. Martin Luther King, Jr. , who had been standing on the balcony of his room at the Lorraine Motel in Memphis, TN, lay sprawled on the balconys floor. A gaping wound covered a large portion of his jaw and neck. A great man who had spent thirteen years of his life dedicating himself to nonviolent protest had been felled by a snipers bullet.

Highly Pathogenic Avian Influenza (HPAI) Prevention

Highly Pathogenic Avian Influenza (HPAI) Prevention Administrative structure Bangladesh has 7 divisions, 64 districts and 489 upazilas or sub-districts [Bangladesh National Portal. Source: http://bangladesh.gov.bd] and share borders with India (about 4,246 km) and Myanmar (193 km). Each upazila or sub-district consisting of multiple unions, each unions consisting of nine villages (in rural areas)/ wards (in metropolitan areas) and each ward consisting of multiple mauzas (in rural areas)/ mahallas (in metropolitan areas). In metropolitan or sub urban area, unions are replaced with pourashava i.e municipality and city corporation. There are 4550 unions [Bangladesh National Portal. Source: http://bangladesh.gov.bd/site/view/union-list], 56348 mouzas, 11 city corporations and 317 municipalities in Bangladesh [Bangladesh bureau of statistics (BBS). 2014. Statistical pocketbook of Bangladesh-2013: www.bbs.gov.bd]. Source: Cabinet Division- Government of the People’s Republic of Bangladesh: http://www.cabinet.gov.bd/site/page/fe6c7332-5568-4dd7-bd37-d08120931ccd Control scenario Following are the scenario to control the HPAI in Bangladesh- Stumping out- Bangladesh government approved traditional â€Å"stamping out† control strategy to fight against HPAI since its first detection in 2007. A basic â€Å"stamping out† consist of (a) infection detection (b) affected bird quarantine and (c) culling of affected and in-contact poultry (d) decontamination and (e) surveillance after outbreak. At beginning, the government implemented stamping out in the affected farm and all farms located in 5 KM radius of affected farm. Then government revised this decision due to poultry industry protest and enacted new â€Å"stamping out† rule: stamping out in affected farm and all farms located in 1 KM radius of affected farm. Currently stamping out was only limited to the affected poultry farms (1, 2). Early detection and early response were stressed to control the HPAI in Bangladesh, but late reporting and late response usually hampered the early detection and early response process in Bangladesh. To facilitate the early detection, a HPAI active surveillance program through SMS based reporting system was introduced in Bangladesh which was closed because of fund crisis. In addition, avian influenza compensation strategy was adapted for the owner of the culled poultry farmer in June 2008 which was also closed due to fund availability. Under those circumstances the number of informing gradually reduced (1). Restriction in the movement of poultry Limit in the poultry movement was also enforced but this process was not successful to limit the entry of sick poultry into the live bird market (1). Vaccination (trial basis) in parent stock and commercial layer farm Islam (2015) stated that though Bangladesh introduced vaccination at certain areas in 2013 and 2015, the effect of vaccination is still need to be assessed (1). According to vaccination policy, vaccination on poultry flock is depend on farmer determination, however permission from livestock authority is necessary as livestock authority is responsible for post-vaccination investigation. In addition, poultry farmer is responsible to pay the immunisation and vaccine expenses. In the trial site, vaccination was carried on parent stock (100%) and commercial layer flock (50%), however vaccination was not done in broiler flock. According to number of farm in the trial site, a lower percentage of commercial layer poultry farms were came under vaccination in Gazipur (33%) and Bajitpur (55%). Trial documented uneven antibody response in between the farm and within the poultry farm. In addition, an unprotective antibody level (2 5 (or32)) has been documented in few poultry bird. On the other ha nd, many poultry birds documented protective antibody level (from Log2 5 to Log2 6). Antibody level ranged Log2 5 to Log2 6 is assumed to provide protection against clinical HPAI while this level is unable to reduce the shedding of HPAI. The trial also documented diverse antibody response with different type of vaccine. Post-vaccination outbreaks has been documented in many countries mainly due to scarce vaccination coverage in the main host species (1). Outreach and health education: 10 recommendation messages (Table 1) has been published by Bangladesh government to prevent HPAI H5N1 in human and disseminate those through TV, radio, print media and Department of Livestock Service led public meeting. Government adopted those recommendation from a UNICEF-WHO-FAO-Japan Government joint publication (3). Shanta et al. (2012) documented the percentage of backyard poultry raiser who trailed Bangladesh Government 10 messages after four yours of first detection of HPAI H5N1 in Bangladesh and stated that government should revised 10 messages to lower the risk of HPAI H5N1 in human population (Figure 1). In addition the author stressed on communication pathway and appropriateness of proposed human behaviour in HPAI H5N1 control program (3, 4). Sultana et al. (2012) has the similar findings and also stated that backyard poultry farmers unable to follow the government message because bringing change in low earned backyard poultry farmer existing behaviour require more time an d more financial capacity (5). Table 1: Bangladesh Government 10 recommendation or message to prevent HPAI H5N1 transmission in human (3) Figure 1: Percentage of backyard poultry raiser who trailed Bangladesh Government 10 messages to prevent HPAI H5N1 transmission in Human (2009-2011) (3, 4) Bangladesh adopted different control measure from basic stamping out technique to vaccination (mentioned in above section) since first detection of HPAI H5N1 in poultry in 2007. There is a very limited alternative control method left except strengthening the current control measure to control the HPAI in Bangladesh. After reviewing the control methods in my opinion stamping out a combination of stamping out (only on the affected farm) and vaccination on 1 km radius around the affected farm can be a best practice to control HPAI in Bangladesh. For example, one study proposed a combination of stamping out (1 km radius around the affected farm) and vaccination (3 km radius around the affected farm) to control AI in Belgium (6). Second best control option, stamping out only in the affected farm, which is currently practicing in Bangladesh, is the best method for controlling AI in Bangladesh as the number of bird culling is limited when we compare it with stamping out in 1 km radius and 5 km radius around the affected farm. Third best control option, vaccination in layer, broiler and backyard poultry is an alternative control method for Bangladesh. However, regular monitoring on post-vaccination flock with veterinary authority is necessary to prevent the outbreak of avian influenza with vaccine strai n. For example, one study identified AI in a vaccinated poultry without presentation ill signs even though many birds demonstrate high antibody level (Log 27 to Log 28) (7). The worst control method, â€Å"stamping out† in 1 km radius and 5 km radius around the affected farm as Bangladesh has high poultry density (1460 poultry/km2) (8) and culling of large number of birds lead to financial loss of poultry farmer. The following are the items that will need to estimate the prevention and control costs per method 1.Islam MR. Global and local challenges in the control of avian influenza. 9th International Poultry Show Seminar; Dhaka, Bangladesh: World Poultry Science Association-Bangladesh Branch; 2015. p. 5-14. 2.Haider M, Applebaum B. Disease Management of Avian Influenza H5N1 in Bangladesh-A Focus on Maintaining Healthy Live Birds: INTECH Open Access Publisher; 2011. 3.icddrb. Backyard poultry raising practices in Bangladesh: implications for risk of avian inflenza infection in humans. Health and Science Bulletin 2012;10:1-8. 4.Shanta IS, Hasnat MA, Mikolon A, Khan MSU, Haider N, Bhuyan AA, et al. Backyard Poultry Rearing Practices in Bangladesh: Implications for Risk of Avian Inflenza. 2012 International Conference on Emerging Infectious Diseases; March 11-14, 2012; Atlanta, Georgia Centers for Disease Control and Prevention; 2012. 5.Sultana R, Rimi NA, Azad S, Islam MS, Khan MSU, Gurley ES, et al. Bangladeshi backyard poultry raisers’ perceptions and practices related to zoonotic transmission of avian influenza. The Journal of Infection in Developing Countries. 2011 2011;6(02):156-65. 6.Vandendriessche Y, Gellynck X, Saatkamp H, Dewulf J, Van Steenwinkel S, Vermeire B, et al. Economic evaluation of strategies to control high pathogenic avian influenza in Belgium. Lucrari stiintifice Seria Zootehnie-Universitatea de Stiinte Agricole si Medicina Veterinara Ion Ionescu de la Brad (Romania). 2010. 7.Giasuddin M, Rahman MH, Hasan M, Karim MR. Isolation of Avian Influenza Viruses from Vaccinated Chicken Flocks of Bangladesh. In: Husain M, editor. 8th One Health Bangladesh Conference; Dhaka, Banfgladesh: Scientific Sub-Committee, 8th One Health Bangladesh Conference; 2015. p. 7. 8.Biswas PK, Christensen JP, Ahmed SSU, Barua H, Das A, Rahman MH, et al. Avian influenza outbreaks in chickens, Bangladesh. Emerging infectious diseases. 2008 2008;14(12).

the jungle Essay examples -- essays research papers

Upton Sinclair was the most famous of the American â€Å"muckraker† journalists. He was born in Baltimore, Maryland on September 20, 1878. Although his family was poor, Sinclair was able to earn money as a writer from a very early age, and was able to save enough money to go to college. He attended the city college of New York and graduated from there with a B.A. degree. Soon after he went to Columbia University to graduate school. It was there that he began writing full-length novels with important social themes. His novels showed that he was concerned with the conditions of working people. During the early part of the twentieth century businesses had very little to restrain them and working class unions were not nearly as common as they are today. Some of the biggest abuses of labor conditions took place in big cities such as New York and Chicago. It was in the meatpacking district of Chicago that Sinclair found the setting of the book that would bring him to fame. He first won recognition by the jungle in 1906. This book is a powerful realistic study of social conditions in the stockyards and packing plants of Chicago. It aided in the passing of pure food laws.   Ã‚  Ã‚  Ã‚  Ã‚  This novel illustrates how greed and ruthless competition has made the turn of the century into a ruthless jungle. â€Å"Take or be Taken† was the guiding rule, and everyone was someone else’s prey. The meatpacking district of Chicago in the early 1900’s is where the novel takes place. The main characters in this book are a Lithuanian immigrant Jurgis Rudkis, a hardworking strong man out to find the American dream, his wife, and his family who is trying to do the same.   Ã‚  Ã‚  Ã‚  Ã‚  After a long journey to America the family arrives in Packingtown, where Jokusbas Szedvilas, a fellow Lithuanian immigrant, introduces them to the filthy stinking part of the city that will now be their home. Jurgis is very eager to get a job and succeeds easily. The family has rented living quarters in the filthy boarding house ran by Anielle Jukniene, but Jurgis and the others want to buy a house. An attractive advertisement brings them to a dishonest house agent. They do buy a house, but are made to sign a deed that they can’t even understand. They find out later it requires them to rent the house for a long time and if they miss even one payment they lose all they have in the ... ...e time. He knew he had to be very graphic and specific to get the message across. His novel was the main reason that congress was pressured into passing the Pure Meat Inspection Act in 1906.   Ã‚  Ã‚  Ã‚  Ã‚  The economical and social issues of the book are told by the tragic stories of the men and women who worked, and died in the stockyards district. They encountered nearly every evil possible. Unable to speak English they were easily exploited and taken advantage of. The workers of the stockyards were paid horribly low wages that weren’t even enough to keep a family going. Every member of the family must work or they would all starve. It seems that no one cared or even knew about this until Upton Sinclair wrote â€Å"The Jungle.† For the people of the stockyards they were living in a great depression, a life of depression.   Ã‚  Ã‚  Ã‚  Ã‚  This book impacted history in a great way. The power of meat inspectors greatly improved, and Americans finally had confidence in the meat that they ate. This book impacted American meat and Americans eating habits more than it did working conditions, which were what I believe Upton Sinclair was really trying to change. the jungle Essay examples -- essays research papers Upton Sinclair was the most famous of the American â€Å"muckraker† journalists. He was born in Baltimore, Maryland on September 20, 1878. Although his family was poor, Sinclair was able to earn money as a writer from a very early age, and was able to save enough money to go to college. He attended the city college of New York and graduated from there with a B.A. degree. Soon after he went to Columbia University to graduate school. It was there that he began writing full-length novels with important social themes. His novels showed that he was concerned with the conditions of working people. During the early part of the twentieth century businesses had very little to restrain them and working class unions were not nearly as common as they are today. Some of the biggest abuses of labor conditions took place in big cities such as New York and Chicago. It was in the meatpacking district of Chicago that Sinclair found the setting of the book that would bring him to fame. He first won recognition by the jungle in 1906. This book is a powerful realistic study of social conditions in the stockyards and packing plants of Chicago. It aided in the passing of pure food laws.   Ã‚  Ã‚  Ã‚  Ã‚  This novel illustrates how greed and ruthless competition has made the turn of the century into a ruthless jungle. â€Å"Take or be Taken† was the guiding rule, and everyone was someone else’s prey. The meatpacking district of Chicago in the early 1900’s is where the novel takes place. The main characters in this book are a Lithuanian immigrant Jurgis Rudkis, a hardworking strong man out to find the American dream, his wife, and his family who is trying to do the same.   Ã‚  Ã‚  Ã‚  Ã‚  After a long journey to America the family arrives in Packingtown, where Jokusbas Szedvilas, a fellow Lithuanian immigrant, introduces them to the filthy stinking part of the city that will now be their home. Jurgis is very eager to get a job and succeeds easily. The family has rented living quarters in the filthy boarding house ran by Anielle Jukniene, but Jurgis and the others want to buy a house. An attractive advertisement brings them to a dishonest house agent. They do buy a house, but are made to sign a deed that they can’t even understand. They find out later it requires them to rent the house for a long time and if they miss even one payment they lose all they have in the ... ...e time. He knew he had to be very graphic and specific to get the message across. His novel was the main reason that congress was pressured into passing the Pure Meat Inspection Act in 1906.   Ã‚  Ã‚  Ã‚  Ã‚  The economical and social issues of the book are told by the tragic stories of the men and women who worked, and died in the stockyards district. They encountered nearly every evil possible. Unable to speak English they were easily exploited and taken advantage of. The workers of the stockyards were paid horribly low wages that weren’t even enough to keep a family going. Every member of the family must work or they would all starve. It seems that no one cared or even knew about this until Upton Sinclair wrote â€Å"The Jungle.† For the people of the stockyards they were living in a great depression, a life of depression.   Ã‚  Ã‚  Ã‚  Ã‚  This book impacted history in a great way. The power of meat inspectors greatly improved, and Americans finally had confidence in the meat that they ate. This book impacted American meat and Americans eating habits more than it did working conditions, which were what I believe Upton Sinclair was really trying to change.

King Lear :: essays papers

King Lear In William Shakespeare’s classic play, King Lear, the title character gives a memorable speech that brings to light the effect of wealth on the way people perceive mistakes. When you were a kid and you did something wrong your mother or your father probably told you, â€Å"well everyone makes mistakes.† Lear adds another dimension to this concept. In more modern terms, his speech basically says that it’s much easier to detect sin and wrong in a man who bumbles around in filth with a shopping cart full of God-knows-what, all wrapped up in garbage bags, than it is in a man who pulls up in a Jaguar and is wealthy enough to hire people to floss his teeth. However, when King Lear actually delivered the speech, there were no Jaguars, and there was no dental floss. There probably weren’t even shopping carts or garbage bags. In fact, I’m quite sure there weren’t, so King Lear’s speech might not be quite as accurate now as it was in his time. It was a different society, a different world. In fact a particular situation of very recent time comes to mind, which shows just how outdated Lear’s speech might be, since there was of course no crack cocaine back then. Most people who pay attention to current events will know where I’m going with this. Last week I was flipping through the newspaper (keep that in mind) when a very familiar name caught my attention. Ex-baseball star Darryl Strawberry had once again been arrested for a series of completely ridiculous and outrageous behaviors. â€Å"Sinful,† in more King Learly terms would be an understatement when addressing Strawberry’s most recent crimes. â€Å"Robes and furr’d gowns hide all?† It’s quite the opposite in this case. The public eye has actually been nothing less than relentless in poring over and pointing fingers of shame and â€Å"look at him isn’t that terrible?!,† all at Darryl Strawberry, the rich and famous baseball hero. His sin is plated with anything but gold. But you know what? There might be some bum walking up the block from me right now, selling the same crack cocaine that got Mr. Strawberry in trouble. I wo uldn’t know about it, and neither would anybody else (law enforcement officials, for example). No one can see his small vices, despite his â€Å"tatter’d clothes.

Endocrine disrupting compounds and human fertility Essay

In the past 100 years, humans have introduced several hundreds of new compounds into the environment, which actually have affected the physiology of both plants and animals including humans (Propper, 2005). In most cases these deleterious effects are unintended and it was not predicted before that these compounds could have such effects on organisms. Therefore the actual mechanisms by which these compounds affect physiological functions of other organisms are not yet properly researched. When such compounds affect the endocrine systems they are called endocrine disrupting compounds. These compounds would affect different hormonal pathways and physiological functions such as reproduction, development, metabolism and even the behavior of humans and other animals. The present essay is intended to identify some of the endocrine disrupting compounds that affect human fertility, the mechanism of affecting, to analyze the weight of different evidences available and to analyze the current investigation techniques. Endocrine disrupting compounds have been defined as â€Å"an exogenous agent that interferes with the synthesis, secretion, transport, binding, action, or elimination of natural hormones in the body which are responsible for the maintenance of homeostasis, reproduction, development and/or behavior† (Kavloc et al. , 1996). The United States Environmental Protection Agency (USEPA) has accepted this definition as the most appropriate one in the year 2004. These compounds are capable of interfering with normal signaling mechanisms of the endocrine system. Either they could block or make changes in the synthesis of hormones, or they could mimic some of the endocrine compounds, thereby affecting the target organs. They could also affect the release of these hormones from the concerned glands and its transportation. They could also bind with the specific molecules to which hormone binds. These compounds are usually seen in pesticides, industrial effluents, pharmaceutical compounds, etc. Heavy metals also could induce endocrine disruption. Wastewater effluents from cities as well as from agricultural fields are sources of such compounds. The neuro- endocrine system might also get affected by these compounds causing changes in the reproductive organs and associated behaviors in humans. Most of the researches in this filed are concentrated towards the effect of these compounds on estrogen and other steroids responsible for reproduction (Propper, 2005). According to Caserto et al. (2008) these compounds could affect human heath seriously even when present in very small amounts. This is especially because many such chemicals would be these affecting a single target. There are many studies which reveal that waste water discharge in to natural waters have resulted in the changes in reproductive organs of aquatic fauna. This is because of the presence of 17 beta estradiol, estrogens, androgens, etc, in wastewater. These compounds are highly stable and therefore could not be removed completely from wastewater by various treatment procedures to reclaim the water. Traces of these compounds would be present in the drinking water, which is prepared from these natural waters into which the wastewater has been disposed. Bioaccumulation of these compounds in humans is expected to affect fertility (Falconer, 2006). Wagner and Oehlmann (2009) have conducted a study to determine the level of endocrine disrupting compounds in usual food stuffs of humans and they selected bottled mineral water as one of the sources of this compounds. The effort was taken based on the fact that endocrine disrupting hormones reaches the body of human mainly through foodstuffs. They used estrogen receptor alpha for the identification. They found that the mineral waters in plastic bottles are seriously contaminated with phthalates that are getting leached into the water from plastic bottle. Thus it was proved beyond doubt that endocrine disrupting compounds are present in plastic wares and extensive use of plastic wares to store food would result in increased level of these compounds in the foodstuffs with a deleterious effect on fertility. According to Rhind (2005) there is an urgent need to study the effects of endocrine disrupting compounds on animals. Very little is known regarding the concentration of these compounds in the different tissues of animals, the concentration required to produce a deleterious effect on the animals, effect of prolonged exposure to an single compound, the effects of different classes of compounds, effect of the exposure to more than one compounds at a time etc. With the available information it is possible to establish that the endocrine disrupting compounds in the environment is affecting human health adversely with a high impact on fertility. The effect of these endocrine disrupting compounds on human reproduction is different for different compounds. Compounds such as diethylstilbestrol affect female reproductive system and cause abnormal follicular growth, ovulation, abnormal formation of corpus luteum and the overall maintenance of ovary would be affected. It would also affect the normal sexual differentiation in females. Pregnancy would be affected because of the negative effects on fertilization and implantation of the embryo in the uterus. Another pollutant called dioxin has been reported to cause endometriosis in women, which is a very painful disease that leads to infertility (Crisp et al. , 1998). There are some compounds, which are naturally occuring such as phytoestrogens produced by plant that could mimic the properties of estrogens produced by humans (Caserta et al. , 2008). Natural sex hormones are used extensively for different purposes in farms as well as in urban areas and there is every chance that these would become harmful to non-targeted organisms including humans because of the concentrating effect. There are many evidences, which prove that environmental contaminants are causing problems in female fecundity as well as fertility (Louis et al. , 2006). There are evidences to prove that puberty, menstruation, endometriosis, pregnancy, senescence period for reproduction etc are affected by exposure to these compounds. Diethyl stilbestrol was given to pregnant women during 1950’s to prevent miscarriage. But later on due to the adverse effects of these compounds most of the kids developed abnormalities. Finally the compound was withdrawn from the market. The female child produced in such cases developed menstrual abnormalities, vaginal hypoplasia, sudden abortion, premature delivery, uterine malformation and overall low fertility. If the child is a male, it was found to develop testicular dysgenesis syndrome (Milhan 1992). Maternal exposure during pregnancy and exposure to these compounds present in the mother’s milk during the prenatal period are believed to be the reasons for such defects. This occurs due to the lipophilic nature of these compounds, which in turn gets stored in the adipose tissues of the mother. This is one of the strongest evidences of the deleterious effect of these compounds on human reproductive system. There are reports that state that human sperm production has decreased in the past 50 years. Although accurate evidence is not there, the reasons for this decrease is attributed to the presence of endocrine disrupting compounds in the environment (Crisp, 1998). Leydig cells tumors are increasingly believed to be caused by this factor. Same is the case of prostrate cancer. Studies conducted in Coke-oven workers have revealed that there has been an increase of mortality among them due to prostrate cancer due to occupational exposure to these compounds. However more research is required to find out the actual cause of this cancer, whether it is due to endocrine disruption by any chemicals in the environment.