Evolution of Medical Practice Essay Example for Free

Evolution of Medical Practice Essay1) Great Cases in Bioethics, compiled emended by Paul A. Lombardo (2005) available at the law school copy center2) Limits The Role of Law in Bioethical Decisionmaking, by Roger B. Dworkin (Indiana, 1996) Strangers at the Bedside A History of How Law and Bioethics alter the Practice of Medicine, by David J. Rothman (Harper-Collins, 1991). These are available for background material.on reserve at the Law Library the Center for BioethicsThe field of Bioethics has developed over the past thirty years as a product of several shifts in American cultural consciousness. The pervasive use of rights-based rhetoric borrowed from the civil rights movement contributed to the evolution in the role of physicians as they relate to patients. An ongoing conversation about the impact of law in shaping medical practice also influenced the current tint of Bioethics as an area of study. A number of legal cases stand as signposts for critical moments in the his tory of Bioethics. They mark the changing public perception of the hybridizing of science, medicine, personal values and law. This seminar explores those cases.The first two weeks of the seminar go forth include a course orientation and exploration of two cases by the instructor. Each week thenceforth go forth feature a presentation on one or more seminal cases, prepared by one or more students. The piece hour of the seminar will be a discussion menses that focuses on the cultural impact, legal significance and ethical issues raised by the cases. In asset to a clique case presentation and involvement in seminar discussions, each law student will be required to complete a interrogation paper building on material presented during the case presentation. Students should be prepared to choose a depicted object and presentation date at the first seminar meeting.Guidelines for classify Presentations and papersEach student is required to choose a case and make a class presentatio n that explores the historical, legal, and ethical context of the case. The rest of the students will prepare for the class by reading the case opinion(s).In the first hour, students shouldPresent the case in its historical setting, budgeting time to entertain drumheads during or at the end of the hour. The presentation should highlight critical facts of the case, with particular attention to both facts and arguments that have engendered ethical debate.Describe the responses of commentators (ethicists and other) to the case when it was decidedNote the prevailing norms of that period with reference to the ethical and legal issues in the casethis will require a search of the literature of the periodBe prepared to answer the question Why is this a paradigm case (or set of cases) in the history of bioethics, in other words, why does this case have enduring significance in ethical and legal debate?Students should plan their seminar presentation by meeting with the Professor well in adva nce of the scheduled presentation date.ResourcesA kind of resources whitethorn be used, including journal articles from the legal and medical literature, other cases that preceded and followed it, and contemporary media coverage that will explain the social/cultural reaction to the case. Audio optical aids, including video/audio tapes, slides or overheads may be used to elucidate elements of the case.Depending on the time at which the case occurred and the amount of commentary (of various kinds) it may have generated, each student may use different types of resource material, and may choose a different disciplinary perspective from which to present the case. question for the presentation should range from popular professional books and articles that elucidate the case and its impact to information found on the Internet. Students will be expected, as part of the class session, to provide other seminar participants with copies of a detailed outline of their presentation. A bibliogr apy (1-2 pages) of sources must accompany the materials.The second hour will involveA discussion with attention from other students and the Professor, to place the case in the current ethical and legal context. What are the contemporary ethical issues with which the case is now associated? What current cases need to be examined in reference to the Great Case? Where does the debate stand today? What is at stake ethically in the debate and what is your position on the issues?Seminar publisherEach student will be required to write a research paper of significant size and substance on a topic that expands on or relates to the case presented in class. The paper will provide an in-depth exploration of issues raised during the class discussion or in conference with the Professor, and will incorporate reference material discovered during research. The paper should be no less than 25 pages, and should demonstrate familiarity with the scholarly literature in the relevant areas.

How slaves were affected Essay Example for Free

How slaves were affected EssayWhen the African Americans were introduced to slavery, they didnt accept what was happening to them and how they were be treated, but as time passed working for their masters, non only physical, but psychological abuse took its toll and shortly they began to believe the way they were living was normal and alright.Punishment played a giant role in slave life. It showed the consequences of non doing what was asked or disobeying their master thus insboulder claying fear in every single slave the owner possessed. Charity Anderson rec every last(predicate)s, But honey chile, all snow-white folks warn t right-hand(a) to dere slaves, cause Ise seen poe niggas almos toe up by dogs, and whipped unmercifully, when dey didnt do lack de white folks say. Mary Reynolds remembers, I reservoir them dress the men and women in the stock with they hands screwed down through holes in the board and they feets tied to directher and they naked behinds to the wor ld.Solomon the sic overseer outmanoeuvre them with a big whip and massa look on. The niggers better not stop in the fields when they hear them yellin. They cut the flesh most to the bones and some they was when they taken them out of stock and put them on the beds, they never got up again. These two accounts show just what these poor slaves had to deal with. They were constantly watched, and felt that if they just as much as gave a superior a wrong look, they would be beaten, or even worse, killed.Of course slaves saw this as inhuman but had no choice to obey as their masters said. There is much evidence that shows how quick they learned to do as they were told and after a period of time, many slaves accepted the idea of universe just thata slave. This transformation started with the servants becoming fearful. Surviving was a game of smarts, hard work, and willpower. In order to live, slaves would allow their masters to beat and punish them without questioning so as not to risk a painful and senseless death. Snitching on other slaves who planned to escape was a good way to show their masters how loyal they were. Many slaves went as far as calling their masters nice and sometimes even boasting near their masters to other servants on dissimilar plantations. These small acts helped many stay alive but living oppressed lives affecting their minds and emotions forced themselves to cope with their sadness. vocalizing was common among slaves to express themselves and their hardships. Frederick Douglass recollects, They told a tale of woe which was then altogether beyond my feeble comprehension they were tones loud, long, and deep they breathed the prayer and complaint of souls stewing over with the bitterest anguish. The servants shared their flavors with each other through these hymns and so it do them strong enough to have the willpower to keep living by obeying and doing as they were told. Dogs lived a better life than many slaves, We had very bad eatin. Bread, meat, water. And they fed it to us in a trough, jes bid the hogs. And ah went in may sic shirt till I was 16, nevah had no clothes. And the flo in ouah cabin was dirt, and at nighttime wed jes take a blanket and lay down on the flo. The dog was supeior to us they would take him in the house. -Richard Toler. The serfs accepted that they lived worse than dogs and at this point, it becomes evident that slaves began accepting the life of slavery.They knew escaping was a bad idea because they would have no shelter, food, or clothes. If they were caught, they would be in the worst kind of trouble so they were forced to keep living the oppressed life. Being beaten and abused had them physically and mentally feeling that they were a lower race. Being intimidated all of the time had a harmful affect and they started to see slavery as acceptable. Their owners didnt allow them to read or write so living with a roof over their head made them feel privileged.Mr. William McNeill says, Th e escaped slaves were always trailed down by hounds they never got away, thither were always some good slaves to tell on others. I was glad when the slaves gained their freedom, even though we had a large number and lost plenty of money. They made many people rich and got nothing but punishment as a reward. They tell that some of the masters were good but I never did see a good one. This man is one that didnt buy into slavery and kept his mind from being brainwashed like many other slaves. He knew deep down that slavery was wrong and kept the truth in his reality.Even after the slaves were freed, life for them wasnt as great as they hoped it would be and they soon realized that being freed was near as bad as being slaves. Being freed toyed with their minds just like they became slaves and felt out of place in the beginning, they were put into anothertough position to have to readjust once again.An after, soon after when we found out that we was free, why then we was, uh, bound out to different people. Anall such people as that. An we would run away, an wouldn stay with them. Why then wed jus go an stay anywhere we could. Lay out a night in underwear. We had no home, you bed. We was jus turned out like a lot of cattle. You know how they turn cattle out in a pasture? easy after freedom, you know, dark people didn have nothing. Colored people didnhave no beds when they was slaves. We always slep on the floor, pallet here, and a pallet there. Jus like, uh, lot of, uh, wild people, we didn, we didn know nothing. Didn allow you to look at no book.An there was some free-born colored people, why they had a little education, but there was very few of them, where we was. An they all had uh, what you call, I might call it now, uh, jail centers, was jus the same as we was in jail. -Fountain Hughes. This man described how, after being freed, he and his family lived the life that nomads lived. They traveled or so aimlessly, trying to find any place they could possibly stay. He described themselves like cattle which was an understatement because cattle could at least count on being fed. They could eat the grass of the land but the newly freed slaves would be lucky if they could find a piece of fruit.The freed slaves had no money, no beds like Fountain said, no education, basically they had nothing to call their own. Living free was as if they were living in jail Hughes thought, and many others agreed. An my father was dead, an my mother was living, but she had three, four other little children, an she had to put them all to work for to help take care of the others. So we had what you call, worse than dogs has got it now. Dogs has got it now better than we had it when we come along. -Richard Toler. Families were torn apart when all members had to work in order for the family to be able to buy the essential necessities they needed to live. Toler said dogs have better lives now than the lives of black families after being freed which shows just how m uch of a mess the south was in. Many white people did not accept this idea of freeing the slaves so this had many colored people feeling insecure and out of place. Some white people would go out of their way to try and hurt the colored people like the KKK did.Frederick Douglass talks about the idea of dedicate in Getting Help from Others He said he met an Irishman who felt it was a pity for Douglass to be a slave. He then told Douglass to run away to the north where he would find friends there to help him.I pretended not to be interested in what they said and treated them as if I did not understand them for I feared they might be treacherous. White men have been known to encourage slaves to escape, and then, to get the reward, catch them and return them to their masters. Douglass had this distrust when he was a slave but these feelings were carried on even after people like Douglass were freed. They felt they could not trust anyone but their own people. This idea is seen in the Tar Baby story as well. The main purpose of this tale was to show black people that they shouldnt go out of their way to talk to others. It was better to keep their mouths shut and thoughts to themselves because opening up to white folks could only get them into trouble. Since the colored people did not fit in, they kept to themselves which didnt seem like true freedom.Douglass also said in Thoughts of Escape that he and the slaves rather bear those ills we had, than fly to others, that we knew not of. at one time he and every other slave was freed, this is essentially what happened. They had to move and re-adapt to new ills and complications which challenged them as slavery had challenged them once before. The whole time being slaves, black people finally started believing that slavery was what they were meant to do and it was alright for them to be treated at a lower level. Setting them free in an unaccepting world with no help or direction forced them once again, to cope with new p roblems and start a new theory about what it was they were really supposed to be doing or could be doing if it wasnt working and slaving for the white man.

Literature on natural disasters and climate change

Literature on earthy disasters and mode channeliseNatural disasters and orbicular modality channeliseIntroductionThe research topic is immanent disasters and global humor transfigure. Changes in climate not only affect average temperatures, but in addition utmost(a) temperatures, increasing the likeliness of stomach-related natural disasters. If global climate change causes the global average temperature to rise, there will be less cold weather, and a greater probability of hot and record hot weather. An development in temperature variability will extend the uttermost(prenominal)s of temperature, both cold and hot. It is a globalization problem happened in all over the world. The global climate change and natural disasters have impacts on natural imaginations and the environment. The following three names will give a more detail encountering of the natural disasters and global climate change.Article OneArticle humour change and natural disasters integrating science and practice to protect healthAuthors Rainer Sauerborn and Kristie Ebi look for Engine Library resourceSearch Terms mood change natural disastersReference Sauerborn, R., Ebi, K. (2012, December 17). Climate change and natural disasters integrating science and practice to protect health. clustering Health Action, p. Vol 5Objectives of the authors this article focuses on the hydro-meteorological disasters, and takes the report of the Intergovernmental Panel on Climate Change (IPCC) as a pop off point to explore on Health and Health Systems Impact of Natural Disasters. Based on Managing the Risks of Extreme Events and Disaster to Advance Climate Change Adaptation (SREX) and developing research to act questions if there ar some types of extreme events become more frequent, severe, and longer in the past decades the relative donation of climate change to the various types of extreme events how can the health community coordinate and cooperate with the climate and development commu nities to protect health during and after natural disasters (Sauerborn Ebi, 2012). And examine, to which extent climate change make up their relative frequency and intensity.Methods Theory Based on the IPCC report, and review of IPCC-projections of climate-change related extreme weather events and related literature on health transactions. The authors present the result that climate change is likely to increase the frequency, intensity, duration, and spatial distribution of a range of extreme weather events in the next decades.Summary of the article In the article, authors start by clarify natural disaster and lay out the conceptual framework. Sauerborn and Ebi state that human activities influence the frequency, intensity, duration, and spatial extent of some extreme weather and climate events, only the geophysical disasters have not been influenced by human action (Sauerborn Ebi, 2012). Authors look into the contribution of climate change to hydro-meteorological and climatolo gical disasters and the health impacts of these events, and explore the lessening of climate change on both shorter and longer time scale. Sauerborn and Ebi also found the impacts of similar strength events in divergent regions have different consequences (Sauerborn Ebi, 2012). after answer the three questions above, the authors make a conclusion that there is a need for strengthened collaboration between climate scientists, the health researchers and policy-makers as sanitary as the disaster community to jointly develop adaptation strategies to protect human.Overall reaction This article has a clear focus on the contribution of climate change to hydro-meteorological disaster, and gives concise information by answer some key point questions. Based on many reliable resources to explore the supernumerary volume, explain with clear tables, make the theory easily understand.Article TwoArticle Climate-related natural disasters, frugal step-up, and armed elegant conflictAuthors Dr ago Bergholt and Pivi LujalaSearch Engine list of referencesSearch Terms climate-related natural disastersReference Bergholt D, Lujala P. (2012). Climate-related natural disasters, economic developing, and armed civil conflict. Journal of Peace Research. 49 (1), 147-162.Objectives of the authors In this article, authors cotton up the climate change may be the most serious challenge we need faced in the future and explore the consequences of climate-induced natural disasters on economic growth with the econometric methods, authors also study on the impact of these disasters related to the onset of armed civil on economic growth by abstract the climate-related disasters affect economic growth and armed civil conflicts during the period 19802007(Bergholt Lujala, 2012).Methods Theory The article begins by showing some example of natural disasters had happened, and these impacts for people and countries development. And the authors also state global warming is expected to lead to an i ncrease in both the severity and the frequency of climate-related disasters (Bergholt Lujala, 2012). The authors discuss the effect of climate-related disasters at the economic persuasion with recent research. Then the authors present their hypotheses-H1 Climate-related disasters have a negative effect on economic growth H2 negative income growth shocks caused by climate-related disasters increase the likelihood of armed civil conflict onset (Bergholt Lujala, 2012). Using Econometric methods with data help analysis the hypotheses, and with consideration on the variables, such as economic growth and armed civil conflict, only use the data during the period 1980-2007. The authors assess the results and found that climate-related natural disasters have a negative effect on growth and that the impact is considerable (Bergholt Lujala, 2012). This has two important implications if climate change increases the frequency or makes weather-related natural disasters more severe, it is an econ omic concern for countries susceptible to these types of hazards (Bergholt Lujala, 2012).Summary of the article The article looks at climate change and natural disaster from the economic perspective, the main objective of this study is to investigate social impacts caused by different climate-related natural disasters. Discover the effects of hydro meteorological, climatological and geophysical events on economic growth in the short run. Article provides quantitative order of a negative causal effect on short-run economic growth form the upshot of people affected by climatic disasters. And prove the climate-related disasters change important factors for production and income, and take overall economic performance. Moreover, different from the studies of Collier Hoeffler (2004) and Miguel, Satyanath Sergenti (2004), authors found when the economic growth impact by the climatic factors, it does not systematically relate to armed civil conflict onset.Overallreaction This article pr ovides many data about the climate disasters and economic growth, and proves the climate-related disasters impact for the economic performance. However, after all the data collected, there is no evidence to prove the climate-related disasters lead to more armed conflicts.Article ThreeChapter Climate change adaptation and disaster risk reduction Key challenges and ways out frontBook Climate Change Adaptation and Disaster Risk Reduction An Asian PerspectiveEditors Juan M. Pulhin, Rajib Shaw and Joy Jacqueline PereiraSearch Engine databaseSearch Terms Climate change global natural disastersReference http//site.ebrary.com.ezproxy.lincoln.ac.nz/lib/lincoln/docDetail.action?docID=10445342Objectives of the authors This book introduces the climate change adaptation and disaster risk reduction in an Asian perspective. It focuses on community-based risk management, urban environmental management, human security, water community, risk communication, climate change adaptation, climate disaster resilience and community-based practices. The book connects academic research to the accepted examples, strengthen the relations between the environment, disaster and the community. It also provides specific guides to the demanding academic analysis with community practices and evidences. This chapter focuses on the key challenges and ways forward of the climate change adaptation and disaster risk reduction.Methods Theory This chapter claims that Climate change is wholeness of the major(ip) challenges confronting human society in the 21st century (Ericksen OBrein, 2007 Adger, Lorenzoni, OBrien, 2009). And with mounting evidence, without effective address, he regions sustainable development and poverty-reduction efforts would be seriously frustrate by climate change.Summary of the chapter Climate change is one of the major challenges confronting human society in the 21st century (Ericksen OBrein, 2007 Adger, Lorenzoni, OBrien, 2009). Due to the climate change, many parts of As ia have been through serious natural disasters. It is also alter water shortages in many areas, which block the agricultural production, and threatening food security and energy supply from hydroelectric source. A number of issues and challenges have been identified and categorized into three general types 1) differences in functional, spatial, and temporal scale 2) mismatched regarding norms such as legislative, cultural, and behavioral norms 3) knowledge mismatches. There are eight major strategies included to address the different issues and challenges 1) integration of CCA and DRR concerns at various levels from national to local 2) strong governance system at different levels 3) improve information system and knowledge management 4) apply integrated assessment methods and tools 5) ensure natural resources sustainability and resource rights 6) build local resilience and issue vulnerability 7) advance innovative education and research and development initiatives 8) secure adequa te funding support.Overallreactionauthors analysis the key challenges and ways forward in the Climate Change Adaptation and Disaster Risk Reduction. Explain and example every single point, detail but not intricacies.ConclusionClimate change is happening, it is one of the biggest challenges to development. The human actives influence the climate change, the climate change causes natural disasters. The most common one is global warming, people always link climate change with global warming, however, global warming is not the only consequence of the climate change. From the selected articles, we can find that climate change will also increase the frequency of extreme weather events occur. From the long-term trend, it will have a local climate change in each region. Indeed, many of the worlds extreme weather happened in these years, some astronomy, as well as El Nino, ocean circulation weather these have occurred. There are also many events in New Zealand, like the strong breeze, heavy snowfall. For the climate change adaptation and disaster risk reduction, we should prepare the most fundamental preparation, reduce the damage made by human activities. Moreover, when there are some special natural disaster that cannot reduce or block by human behavior, we need to understand how to response the emergency.

The Tlatelolco Massacre Night Of Bloodshed And Tears History Essay

The Tlatelolco trouncing Night Of Bloodshed And Tears History EssayThe core of the Three Cultures, known as the Plaza de las Tres Culturas in Spanish, symbolizes Mexicos unique cultural heritage. La Plaza de las Tres Culturas was once the center of one of the most powerful Native American empires, the Aztecs, located in the ancient city of Tlatelolco. The squ ar contains the remains of the Aztec temples and is flanked by the Colonial Cathedral of Santiago, and the Secretaria de Relaciones Exteriores (Department of Foreign of personal matters) building. Las Tres Culturas is in recognition of the three periods of Mexican history reflected by those buildings pre-Columbian, Spanish colonial, and the freelance mestizo tribe. The center of attention not completely represents three cultures but is an important reminder of the Mexican spirit of determination. It is the site where the Aztecs made their final stand against the Spanish army in 1521 and the trouncing of 1968. It has been c alled Mexicos Tiananmen Squ be, Mexicos Kent State. During the presidency of Gustavo Daz Ordaz (1964-1970), there were several antecedents to the 1968 student confrontations with the Mexican judicature, but nothing comparable to the Tlatelolco Massacre that occurred on the night of October 2, 1968, in Mexico Citys Plaza de las Tres Culturas.BackgroundThe year1968 was a year of political turmoil around the world. The Inter national Olympic Committeeheaded by Avery Brundage from the U.S.had chosen Mexico as the depression Third World country ever to host the Olympic Games. This was aimed both to draw oppressed countries into imperialist-dominated world sport and to showcase Mexico as a posture of U.S.-sponsored growth and relative stability. Mexico was supposed to provide a contrast to the national liberation struggles which were shaking most of Latin America, Asia, and Africa and sparking rebellions in the imperialist citadels from Detroit to Paris as well. To date, no other Latin America country has subsequently hosted the Olympic Games. The Mexican government invested a massive $150 million in preparations for the Olympics, an pretentious amount considering the poverty that existed in Mexico. The Mexican president during the Olympics, Gustavo Daz Ordaz ineptly strained tenuous conditions in Mexico in an attempt to preserve the peace. During the Daz Ordaz presidency, Mexicans endured the suppression of nonsymbiotic labor unions, peasant farmers, and the economy.From this general dissatisfaction with President Daz Ordaz, the student movement was born. Initially their demands were limited to greater craft and respect for university autonomy however, the struggles of the factory workers and rural peasants soon resonated with them. This movement of rebellious students was touched off on July 24 when a fight between gangs at two high schools connected with the longtime rivals, the Mexican National Autonomous University (UNAM) and National Politechnical Instit ute (IPN, or Poli), was viciously put down by antiriot police force called granaderos. When outraged vocational students protested, granaderos attacked again, killing many.In receipt, students seized buses and put up barricades to defend their schools. Student strikes and takeovers hit high schools all over the capital. The high school students were back up by UNAM and IPN students. Students from 70 universities and preparatory schools in Mexico formed a grassroots National Strike Council (CNH) and put forward six strike demands disband the granaderos draw out police chiefs investigate and punish higher officials responsible for the repression pay compensation for students killed and injured repeal laws making social dissolutionbreaking down of societya crime (under these laws many independent unionists and communists had been jailed) and free political prisoners, including students arrested in the recent disturbances as well as those seized earlier for social dissolution.Within three days the government had to call in the army to take back several Mexico City prepas (preparatoriashigh schools connected to universities). There were clashes which led to many hundreds of arrests and injuries. Thirty-two students had been killed since the first confrontation, but this only fired up the youths resistance. The student strike spread to the UNAM, IPN, and universities throughout the country, supported by a majority of professors. By late August and September the students were calling marches of 300,000 to 600,000 bulk important contingents of workers and peasants participated regularly. Over the coming months, the student movement gained support from students outside the capital and other segments of society that act to build until that October, despite several instances of violence.CNH tactical manoeuvreStudent brigades strained their creativity and skills to foil police and get the word out. Engineering students designed balloons which would burst when they got to a certain height and rain leaflets on the heads of pedestrians. Acting students put on realistic street theater in which a student and a conservative woman in pearls and heels carried out audacious debates in crowded markets. Hundreds of observers would be drawn in, the majority on the side of the youth, and the advanced would be quietly contacted by undercover students in the crowd. some(prenominal) students raise that they and the barrio or slum dwellers spoke what seemed to be two different languages. They had to throw out bookish talk and learn from the vivid cal slang of the streets. After a full day of brigade work, they would spend the night in classrooms they had taken over, discussing the conditions and outrages the masses had exposed them to and figuring out how to use this new knowledge in their leaflets and agitation.The red and white buses of the IPN, always with some daring students and a loudspeaker perched on the roof, became famous for a kind of roving spea k-in. Workers, market vendors, and even mariachi singers would rear up on the bus roof one after another to voice their support or disagreement with the students demands or tactics and to air their grievances. In some neighborhoods, just the appearance of an IPN bus was enough to immediately attract crowds of hundreds of people who would gather around. Students captured the spirit of the people in a way that the national government was never able to do. In fact, the national government was despised by its people.Mexican GovernmentThe turmoil of the 1960s in part reflected a widespread dissatisfaction among Mexicans with the rule of the Institutional Revolutionary Party (PRI). The PRI was aptly described in 1968 as entrenched, stagnant, and primarily self-serving in the eyes of many Mexicans. The PRI controlled the nation with an iron fist for over 70 consecutive years. The party has been known to use violence, manipulation and corruption to win elections and hide information from t he public, such as the details concerning the Tlatelolco massacre. President Gustavo Diaz Ordaz was known for an authoritarian manner of rule over his cabinet and country, despite Mexico being a democratic country. Luis Escheverria, Interior Secretary to Ordaz, was too known for a no nonsense attitude against student protesters.The Mexican governments intend response to the student rally on the evening of October 2 was called procedure Galeano. The most definitive account of this operation, culminating with the Tlatelolco Massacre, is pitch in a Mexican special prosecutors report put underd in November 2006. According to this report, early on October 2 elements of the phalanxs Estado mayor Presidencial (the Presidential High Command) were placed in apartments on the upper floors of the Chihuahua apartment building and other apartment buildings surrounding Tlatelolcos Plaza de las Tres Culturas. Once the rally started, the Army, victimization from 5,000 to 10,000 soldiers (the accounts varying) and more than 300 tanks and other vehicles, would surround the plaza to prevent those attending the rally from fleeing, while armed military men in civilian clothes, members of a unit called the Batalln Olimpia that had been organized to help protect the Olympic Games, would prevent anyone from entering or leaving the Chihuahua apartment building, in which the organizers of the rally were to be arrested. The planned response of the government ended in bloodshed by the parade of Luis Escheverria.Tlatelolco Massacre The EventOn October 1, the CNH held two rallies at UNAM. Speakers urged the thousands of students present to attend an October 2 rally at the Plaza de las Tres Culturas, in the Tlatelolco area of Mexico City, to be followed by a march to Casco de Santo Toms to demand the withdrawal of authorities from the IPN campus. On October 2, 1968, approximately 10,000 people, most of them students carrying red carnations, arrived in the vast colonial plaza of Tlat elolco for a demonstration. At 604 p.m. green and red flares dropped from helicopters, soldiers burst into the square, tanks blocked the exits and an elite group plainclothes battalion stormed the speakers platform on the third-floor balcony of an apartment building, where the National Strike Committee, the leadership body of the student movement, was stationed and opened fire. The gunfire lasted for sixty-two minutes, then started again and continued for hours. Late in the evening, when the shooting finally ceased, scores of demonstrators lay dead and woundedchildren and the elderly among them.The official government explanation of the incident was that armed provocateurs among the demonstrators, stationed in buildings overlook the crowd, had begun the firefight. Suddenly finding themselves sniper targets, the security forces had simply returned the shooting in self-defense. By the next morning, newspapers reported that 20 to 28 people had been killed, hundreds wounded, and hundre ds more arrested. Most of the Mexican media reported that the students provoked the armys murderous response with sniper fire from the apartment buildings surrounding the plaza. El Das morning headline on October 3, 1968 read as followed Criminal Provocation at the Tlatelolco Meeting Causes Terrible Bloodshed. The government-controlled media dutifully reported the Mexican governments side of the events that night, painting the students as trouble makers who needed to be brought to order by any and all means necessary.Olympic Games 1968 ControversyThe death of hundreds did not even phase the International Olympic Committee. They did not consider to cancelling the games, collect to their belief that the massacre was an isolated event involving a social minority. On October 16, 1968, an action by two African-American sprinters at the Mexico City Olympics shook the clear world. Tommie Smith and John Carlos, the gold and bronze medalists in the mens 200-meter race, took their places on the podium for the medal ceremony barefooted and wearing civil rights badges, lowered their heads and each defiantly raised a black-gloved fist as the Star Spangled Banner was played to show their support for the student protesters and the Olympic Project for Human Rights. Some people (particularly IOC president Avery Brundage) felt that a political statement had no place in the international forum of the Olympic Games. In an immediate response to their actions, Smith and Carlos were suspended from the U.S. team by Brundage and banned from the Olympic Village. Those who opposed the protest said the actions disgraced all Americans. Supporters, on the other hand, praised the men for their bravery.Tlatelolco Massacre Response and InvestigationSome argue that an understanding of the domestic political context within Mexico explains why the government reacted in such a rocky manner. Mexico stayed relatively isolated from other foreign powers which provided them more freedom in their a bility to deal with their domestic problems. The strongest censure from abroad that Mexico received for the massacre was a mild finger wagging from the representatives of a few foreign governments. The worlds failure to confront and condemn the actions of the Mexican government fueled the killing rampage throughout Mexico in the years to follow.In 1998, President Ernesto Zedillo, on the 30th anniversary of the Tlatelolco massacre, authorized a congressional investigation into the events of October 2. However, the PRI government continued its recalcitrance (defiance of authority) and did not release official government documents pertaining to the incident. Eventually in 2001, President Vicente Fox, the historic president that ended the 70-year reign of the PRI, attempted to resolve the greatest of these unanswered questions who had orchestrated the massacre? President Fox ordered the release of previously classified documents concerning the 1968 massacre. The documents revealed that the students did not open fire first and showed that the snipers were members of the Presidential Guard, who were instructed to fire on the military forces in order to provoke them. President Fox also appointed Ignacio Carrillo Prieto in 2002 to prosecute those responsible for ordering the massacre. In June 2006, an ailing, 84-year-old Luis Echeverra was charged with genocide in connection with the massacre. He was placed under house arrest pending trial. In early July of that year, he was cleared of genocide charges, as the judge found that Echeverra could not be put on trial because the statute of limitations had expired. However, in March 2009, after a convoluted appeal process, the genocide charges against Echeverria were alone dismissed. Despite the ruling, prosecutor Carrillo Prieto said he would continue his investigation and seek charges against Echeverria before the United Nations International Court of Justice and the Inter-American Human Rights Commission.In October 2003 , the contribution of the U.S. government in the massacre was publicized when the National Security Archive at George Washington University published a series of records from theCIA, the Pentagon, the State Department, the FBI and the White mark which were released in response to Freedom of Information Act requests.The LITEMPO documents detailThat in response to Mexican government concerns over the security of the Olympic Games the Pentagon sent military radios, weapons, ammunition and riot control training material to Mexico before and during the crisis.That the CIA station in Mexico City produced almost daily reports concerning developments within the university community and the Mexican government from July to October. Six days before the massacre at Tlatelolco, both Echeverra and head of Federal Security (DFS) Fernando Guiterrez Barrios told the CIA that the situation will be under masterly control very shortly.That the Daz Ordaz government arranged to have student leader Scr ates Campos Lemus accuse dissident PRI politicians such as Carlos Madrazo of documentation and orchestrating the student movement.Still, some today believe the United States government was only concerned with security and safety during the Olympic Games 68 and was not involved in the Tlatelolco massacre in any form. Determining who is at fault however, will not change the events that occurred on October 2, 1968. The blood and tears shed that day are still fresh in the minds of those who witnessed the horrific event.Remembering TlatelolcoIn 1993, a stele was erected to remember those who bewildered their lives. The former headquarters of the Secretariat of Foreign Affairs is now a memorial museum called Memorial 68 to remember the Mexican student demonstrations and the Tlatelolco massacre victims and survivors. Each year the anniversary of the Tlatelolco massacre is marked with a march to the same plaza and a protest for the release of government records. On October 2, 2008, the 40 th anniversary, two marches were held in Mexico City to commemorate the event. wizard traveled from Escuela Normal Superior de Maestros (Teachers College) to the Zocalo. The other went from the Instituto Politecnico Nacional to the massacre site of the Plaza de las Tres Culturas. According to the Comit del 68 (68 Committee), one of the organizers of the event, 40,000 marchers were in attendance.Unfortunately, still too many are unfamiliar with the events that occurred since the massacre fails to appear in most history textbooks. When asked how this could be, high school Headmaster Samuel Gonzalez Montano, replied, You cant teach anything that didnt officially happen. As of now, the newest generation of Mexicans only have a general knowledge of the events surrounding the 68 Olympic Games, which are unavoidably intertwined.Gregory P. Groggel, a graduate of the University of Puget Sound, recountsDuring a visit to the plaza, I encountered a group of boys playing soccer. When I inquired from one of them if he knew what happened in October of 1968 here in the plaza, he shrugged and looked around. I told him some 300 people died. He seemed lost and turned slowly to read the memorial he was sitting in front of and had lived near his whole life. The end of it readsWho? Whom? No one. The next day, no one.The plaza awoke sweptThe newspapers said for newsthe state of the weather.And on the television, on the radio, in the theaters,there was not a single change in the program,not a single announcement.Nor a moment of silence at the banquet(or following the banquet).The deaths of so many youths and protesters must not be forgotten. They deserve more than a simple moment of silence. Remember Tlatelolco. Fore, those who can not remember the past are condemned to repeat it.(George Santayana)

Exhaust System For The LJMU

vex System For The LJMUThe FS event is held every year at Silverst 1 in the UK. The event was circumscribe up by the Institute of Mechanical Engineers (IMechE). Universities from around the world come to Silverstone to enter their cars in the event. Each team that enters FS is solely do up of students. in that location atomic number 18 a consider of distinct classes which the car can be entered. These be figure 1, Class 1A and Class 2.LJMU is entering in to Class 1. Class 1 consists of a number of different events which can be broken bulge in to two categories, Static Events and Dynamic Events.The Static Events include, a presentation, engine room Design and Cost Analysis.The Dynamic Events include an acceleration test, a skip-pad test, an autocross race and an Endurance race which includes a supply economy test.The final pose protrude will be use in the 2011 LJMU FS car. For the annihilate to be used it must fully comply with the FS rules and regulations. The LJMU FS car is a group drop and so it will be vital to the success of the exhaust system and the final car that communication is maintained.Formula Student 2010LJMU competed in its first FS Class 1 event in 2010 and finished in 21st place. This was a great achievement for the university. Feed patronage was given to the university after the event from the FS judges. The feedback received was useful and has given areas of rises for the car. single of the pieces of feedback was criticising the fact that the exhaust system didnt have a Lambda sensor to measure the levels of oxygen the in exhaust gas. This will be one area of improvement for FS 2011.Time ManagementTo complete this project within the strict sequence limits a Gantt chart has been created. This can be seen in APPENDIX REFERENCE. Within the time 4 stages will be stainless. There are analysis, design, verification and manufacture.FS Rules and RegulationsTo successfully create an exhaust system a number of rules need to be met. T he rules and regulations were write by the Formula Society of Automotive Engineers (FSAE). These rules are in place to maintain a level playing field throughout the teams and to too match that safety standards are kept. The FS rules can be interpreted in different ways and so create different and interesting designs.To summarise a some rules, the exhaust has to exist within an area of 450 mm behind the centreline of the rear axle and 600 mm above the ground, the driver must be protected against heat and exhaust system and the sound must not exceed 100dBA.The engine size is alike limited by FS rules. The rules state that an engine no bigger than 610cc can be used for the competition. The used for the engine must also pass through a 20mm restrictor.The full list of rules and break down which are relevant to this project can be found in ARTICLE 10 run down System and Noise Control seen in APPENDIX REFERENCE.Design RestrictionsAs the exhaust will get very hot during cartroad it is important that the exhaust pipes dont come in to contact or come too close to some other engine peripherals such as electrical cables and force out line. The driver will also be protected by a firew each(prenominal) in case of a fire or excess heat from the engine. As the fuels system, divine guidance system and other peripherals have yet to be decided assumptions must be made in the routing of the exhaust system. The decision has been made to mount the engine front facing. This will mean that the exhaust ports are facing towards the front of the car and the intake ports are facing the back of the car. This decision has been made to simplify the design of the drive train to minimalize power lost and reduce the risk of failure.The design is also impacted by 20mm restrictor on the propagate intake which will also affect the exhaust system.Ricardo WAVERicardo WAVE Build will be used to fully model the exhaust system. Ricardo WAVE is an ISO 1D/3D engine and gas dynamics simulatio n package. WAVE is used in a number of different industry sectors all in all involved in simulating engine mental process. It used from creating an initial design to the modifying an existing design without having to manufacture any components. WAVE only produces supposed engine performance data and will need to be verified with experimental data.Ricardo WAVE is a sponsor in the FS event and so all FS teams have access to the software.Learning Ricardo WAVEWithin the WAVE help file there is a list of tutorials which cover setting up and running an engine model. The tutorials range from beginner to advanced. The beginner spark ignition (SI) tutorial takes the user through the initial setup of an in-line, 4-cylinder 1.6L engine. Two WAVE tutorials have been completed these are the Introductory SI Tutorial and the Intermediate Concentric Silencer Tutorial.Going through the tutorials helped to give an idea of the different parameters that would need to be self-contained from the Hond a CBR600RR engine. The tutorials also guide the user through the analysis of the model and how a change in the design affects output.Engine SelectionThe engine selection is partly governed by the FS rules and regulations as stated earlier. Due to the restrictions a decision was made to go for a reliable, powerful engine which is light weight. This lead to the Honda CBR600RR-4. The Honda is a 600cc performance motorcycle engine and so its power to weight ratio is high, which makes it gross(a) for the FS car. LJMU have used this engine for the past 2 years. The specification of the Honda CBR600-3 will be referenced to as the engine specification has not changed between 2003 and 2004.The CBR600RR engine is an 16-valve, in-line four cylinders, four injection, with double overhead camshafts (DOHC) (Coombs, 2006). The Engine uses Programmed Duel Storage (PGM-DS) fuel injectors, two per cylinder, one upper and one move. The lower injectors are used to enhance reliability, above 5500rpm the upper injectors are triggered and are used to improve poll end horsepower (Torrance, 2003).A full specification of the standard CBR600RR can be found in APPENDIX REFERENCE.There are a number of different modifications that will take place on the engine by the FS event in 2011 and so the specification is subject to change. Changes that are being considered are an optimal air induction system with the 20mm restrictor, design and manufacture of a shallower sump, reduction in number of gears and modification of ratios and developing an optimised engine map. All of these changes are aimed at increasing performance of the engine for the required characteristics of the competition.Literature ReviewTo generate the best performance from an exhaust system knowledge of a 4 stroke SI Internal combustion (IC) engine is needed.Four-stroke spark ignition (SI) enginesThe four-stroke SI engine has four different strokes as seen in Figure 1, Four-stroke IC Engine (Encyclopaedia Britannica, 2007 ) The four strokes are Intake, Compression, Power and Exhaust. For each turn of the crankshaft two strokes occur.The Intake stroke, also known as the Induction stroke, starts from Top Dead bone marrow (TDC). In this stroke the piston moves down, the intake value opens causing the air and fuel mixture to be drawn in to the combustion chamber. The volume of the air/fuel mixture drawn in to the chamber is known as the volumetric efficiency.If there is too much air in the mixture therefore the fuel will burn quickly increasing the blackmail in the chamber too quickly leading to mechanical losses and mis redness. This is known as a lean fuel mixture and can lead damage the engine.If there is too much fuel in the mixture then all of the fuel will not be burnt leading to inefficiencies as unburnt fuel will be expelled through the exhaust valve. This will also lower the temperature and pressure in the chamber. This is known as a rich fuel mixture.The Compression stroke follows the induct ion stroke. The compression stroke starts from Bottom Dead warmness (BDC). The intake valve shuts and the piston starts to move back up the chamber. Just before the piston hits TDC the spark plug fires causing ignition.The Power stroke is where the piston moves down the chamber due to the increase in pressure and temperature from combustion. When the piston hit BDC the exhaust valve opens.The Exhaust stroke forces the gasses out of the combustion chamber through the exhaust valve after the Power stroke. At the end of the exhaust stroke the exhaust valve closes and the cycle starts again. Any exhaust gasses left in the chamber will befoul the next intake of fuel and will reduce the power output.As only one stroke generates any power (Power stroke), energy has to be stored in a flywheel to move the piston for the remaining three strokes. (Stone, 1999)Engine ThermodynamicsAn IC engine whether it is a 4 stroke or a 2 stroke is a non-cyclic process. However as the nitrogen in the fluid is virtually unchanged it can be argued that the process is cyclic. This makes calculating the thermodynamic efficiencies much easier as it can be compared to the Otto cycle.PerformanceTo calculate the performance and effectiveness of the exhaust system a number of different parameters will need to be defined.Exhaust DesignThere are two main designs for exhaust systems, exhaust manifold and exhaust header. Both designs have different pros and cons depending on the different requirements.A standard exhaust manifold can be seen in Figure 2, Standard Exhaust Manifold (Monster Autoparts) This Exhaust is made from cast iron, and so it is perfect for output signal vehicles as casting is inexpensive if the cast is only used on a large scale. However for a one off production exhaust system it would be expensive. Exhaust headers Figure 3 on the other hand are comparatively inexpensive to produce a one off design as no mould needs to be created and the pipes can be simply bent and cut in to shape.Manifolds are also inefficient compared to exhaust headers. This is due to the air flow in a manifold. When the exhaust gas enters the manifold back pressure is built up. This back pressure restricts the flow for the next wave of exhaust gas. This means that the piston has to work harder to force the exhaust gas out of the cylinder leading to power loss. This back pressure can be reduced or eliminated using exhaust headers by taking advantage of the timing. This is known as exhaust pulsation.To fully get a line pulsation it is important to explain the exhaust system shown in Figure 3. This design is a 4-2-1 exhaust. Different exhaust designs can be found in APPENDIX REFERENCE. As can be seen each exhaust port has its own header. Header pipes 1 and 2 join and header pipes 3 and 4 join. These joints are known as earnors which then form the secondary headers. The 2 secondary headers then move in to the final collector and form the downpipe. The firing order of the Honda CBR600 engine is 1-2-4-3 (Coombs, 2006).Improving Engine PerformanceTo improve the performance of the engine pulsation can be used. Pulsation is whereExhaust PulsationExhaust atom smasher TurbochargersThere are two different types of exhaust gas turbocharging. These are Pulse Turbocharging and Constant Pressure Turbocharging.Exhaust Gas RecirculationExhaust Gas Recirculation (EGR) is where a small portion of the exhaust gas (5-10%) is fed through a valve back in to the inlet manifold ready for the intake stroke. This helps to abate emissions of NOx (nitric oxcide and nitrogen dioxide) as the amount of fresh fuel drawn in to the cylinder in replaced with exhaust gas. Between 5 and 10% of EGR is possible to halve the NOx emissions (Stone, 1999).EGR increases intake manifold pressure. The higher intake manifold pressure leads to a reduction in the charge cycle work and this lowers the fuel consumption. During EGR the peak combustion temperature is reduced due to the exhaust gas not being used during combustion which will cause less energy to be produced. (Bosch, 2007)EGR can cause misfire and partial burns to occur as the amount of fuel in the cylinder is reduced, causing a lean mixture.selective information CollectionEngine GeometryTo create an accurate model in WAVE geometry from the CRB engine has to be collected. This was done in a number of different ways.A list of geometry needed for WAVE can be found here APPENDIX REFERENCE.A new head from a CRB engine was purchased and was used to collect the relevant information. A new head was purchased as the tests that were carried out on the head would require taking sections, which would destroy the head beyond repair.DIGITISING ARM bulk OF INTAKES AND EXHAUST PORTSRolling Road TestingExhaust Geometry

The Black Death Essay -- Plague

Graveyards were full, medicine failed, parents abandoned ill children and in just six months, millions had died. It was the beginning of the minatory Death. It was a deadly plague that spread through Europe and Asia from the mid 1330s -50s. The cause of death for twenty million people, the survivors thought it was Gods anger at something they had done and, therefore, the end of the world. In Venice, ninety thousand died and in Florence, half the population. There were three types of the plague. The Bubonic plague was the most common, the pneumonic Plague was less common and the Septicaemic Plague was the most deadly and rarest of them all. Historians believe that the plague was caused by fleas that came to Europe from Asia on ships. At the time, people thought they were macrocosm punished by God and that they were being abandoned to fend for themselves. They thought the plague was being spread by bad smells. The plague is believed to have originated from profound Asia in 1331, w hen the wild rats moved to live around the people, probably due to flooding and earthquakes. From central Asia, the plague spread to China and India before moving westside to Iran. By 1345, the disease had spread along the trading routes to Europe. It is thought that Italian trading ships that were at Caffa also brought the plague to Constantinople, the capital of Turkey, and then to Eastern and horse opera Europe. The plague was then spread from person to person by bad hygiene and because the sick and dying werent isolated from the rest of the world. It affected more(prenominal) people in cities that in rural areas. This is because people in cities people are in closer proximity to each other than people in rural areas, so the germs have more people to get to than in the... ...hurch and ruling class in order to survive. Now, most people have a choice of religion and most people arent treated like the people of the medieval period. We have more advanced medicine and have excelle d in science and knowledge. As a result of the Black Death we are now an almost perfectly civilized community that knows how to try and avoid things calamity such as the Black Death. BibliographyMellissa Snell. (2008). Death Defined. Online. About.com. Available from 23 July 2008.E.L. Skip Knox. (Unknown). The Middle Ages The Black Death. Online. Boise State University. Available from . 23 July 2008.Greer, V.et al. (1997) Ancient & Medieval Worlds.Mason, K.J. (2004) Experience in World History.BBC History Magazine

Essay --

Before 1951, the capability of growing cells resulting from animal tissue remained indefinable. The cells would die earlier they could reproduce for research. This changed in 1951 when a woman by the name of Henrietta Lacks was biopsied because of a tumor. She later passed away due to her cancer. The cells were engagen from her cervical cancer cells and now elaborate on their own.While the cells of Henrietta Lacks became commercialized, the Lacks family was forced to live without healthcare. They lived their lives in poverty. Henrietta Lacks story is about her involvement to medical research. The problem with all of this is she never gave the doctor permission to take her cells. Doctor George Otto Gey took them from her cervix. She then died from her cancer. I believe this was wrong you should have the right to know if a doctor took a part of your body. Henriettas family didnt get under ones skin out about what Gey had done for a while after it happened. I think they deserve some compensation for the HeLa cells they lived in poverty, even though Henriettas cells were making so many advances in science. They shouldnt be given all of the profit because they were not doing any of the work to make the advances, but a little something should be given in honor of the doctor taking the cells.There has also been a theory for racial minorities. Henrietta Lacks was black and some good deal believed that what had happened to her may have happened to many other people. If doctors took samples of her body, they would probably do it to anyone else. In the 50s I dont think they were necessarily doing it because she was black, they did it to everyone, black or white. In the 70s, when scientists went back to her children to do research on them. Thats the ... ...ical cancer caused by this virus. Studying her cells allowed them to see how this virus led to cancer and found that the virus inserts DNA into the host. with this knowledge they were able to create a vaccine that blocks the HPV DNA. This is a prevention method.Polio is a viral disease that affects the nerves, it leads to possible paralysis. HeLa cells led to a vaccine that is about 90% effective. Henrietta went to johns Hopkins and today polio is a rare disease. It is all thanks to the cells of Henrietta.Due to a tragic mistake made while assortment HeLa cells in research, scientists were able to finally get a count of how many chromosomes human cells were supposed to contain. This mistake allowed chromosomes to swell and be clearly visible compared to the clumped coming into court they normally have. Using this scientists were able to start diagnosing genetic disorders.