Mercury: A toxic poison Essay -- Chemistry Metal Papers

Mercury: A toxic poison No other metal better illustrates the diversity of effects caused by different chemical species than does mercury. On the basis of chemical speciation, there are three forms of mercury: elemental, inorganic, and organic compounds. The major source of mercury is the natural degassing of the earth's crust, including land areas, rivers, and the ocean, and this source is estimated to produce on the order of 2700 to 6000 tons per year. The total man made release into the atmosphere is about 2000 to 3000 tons, and it is difficult to assess what quantities of mercury come from human activities and what quantities from natural resources. Run-off into natural bodies of water may contain mercury from both anthropogenic and natural sources, so it is difficult to assess how much released into the atmosphere is from man made or natural sources. Nevertheless, mining, smelting, and industrial discharge have been factors in the environmental contamination in the past. For instance, it is estimated that loss in water effluent from chloralkali plants, one of the largest users of mercury, has been reduced to 99% in recent years. Industrial activities not directly employing mercury or mercury products give rise t o substantial quantities of this metal. Fossil fuel may contain as much as 1 ppm of mercury, and it is estimated that about 5000 tons of mercury per year may be emitted from burning coal, natural gas, and from the refining of petroleum products. Calculations based on the mercury content of the Greenland ice cap show an increase from the year 1900 to the present and suggest that the increment is related both to an increase in background levels of mercury in rainwater and to man made r... ...lbut, K.M., FASEB 1992, 6, 2472-2476. 19.Boyd, N.D., Benediktsson, H., Hooper, D.E., Vimy, M.J., American J. Physiology 1991, 261, R1010-R1014. 20.Molin, M. Bergman, B., Marklund, S.L., Schutz, A. Acta Odontol. Scand., 1990, 48, 89-202. 21.Summers, A.O., Wireman, J., Marshall, B., Antimicrob. Agents & Chemotheraoy, 1993, 37, 825-834. 22.Gilbert, M.P. and Summers, A.O., Plasmid, 1988, 20: 127-136. 23.Intercontinental Medical Statistics, Canada, 1992. 24.Cohen, M.L., Science, 1992, 257, 1050-1055. 25.Thompson, C.M., Markesbery, W.R., Ehmann, W.D., Vance D.E., Nerotoxicology, 1988, 9, 1-7. 26.Palkiewicz, P., Zwiers, H., Nuerochem. 1994, 62, 2049-2052. 27.Lundstrom, I.M.C., Int. J. Oral Surgery, 1983, 12, 1-9. 28.Austrian Minister of health, Austria to be amalgam free by the year 2000. FDI Dental World, March/April, 1993, page 6.

Introduction to Philosophy Essay

Abstract â€Å"It is very tempting for people not to think, to remain submerged in reality rather than aware of it, to be carried along by the current of events rather than creating their destiny through thoughtful, independent choices† (Chaffee, 2013). In this paper, the importance of philosophy is discussed in practical terms. Why is it important? What purpose does it serve and what reasons do people have for pursuing an education in it? How can this affect my life? The major branches of philosophy, which are Metaphysics, Epistemology, Ethics, Political & Social, Aesthetics and  Logic, are also discussed along with the contributing questions specific to each branch and what each branch focuses on. Philosophical Areas 3 Philosophical Areas of Inquiry, Personal Relations and Application As stated by Cicero (n. d. ), â€Å"Rightly defined, philosophy is simply the love of wisdom. † â€Å"The actual word philosophy is Greek in origin, and it is the composite of two Greek roots: philein, a Greek word for ‘love,’ and sophia, the Greek word for ‘wisdom. ’ Taken together, they mean ‘the love or pursuit of wisdom’† (Chaffee, 2013). There are so many reasons one would  want to study philosophy, and considering that we are all different, our reasons vary. â€Å"Philosophy means liberation from the two dimensions of routine, soaring above the well known, seeing it in new perspectives, arousing wonder and the wish to fly† (Walter Kaufmann, n. d. ). Studying philosophy is a life-changing experience. It is impossible to â€Å"unlearn† something once you have discovered it, so upon your mind being awakened, it cannot go back to sleep. This grants you the gift of having a new, more complete perspective of the world around you and of life in general. People are naturally inquisitive creatures. This is one of our biggest assets, as well as our biggest downfalls. Philosophy teaches you to think critically about important issues. This is something that takes time, effort and practice. Thinking critically isn’t necessarily easy, but the benefits are plentiful. The purpose of philosophy is to ask questions that â€Å"penetrate the surface of life to confront the deeper currents lying beneath† (Chaffee, 2013, p. 4). Due to there being so many different categories of philosophical questions to be answered and studied, there are several  branches of philosophy with questions specific to them and certain methodologies used in search of answers. These branches are Metaphysics, Epistemology, Ethics, Political & Social, Aesthetics and Logic. Metaphysics Metaphysics is â€Å"the study of the ultimate characteristics of reality or existence† (Chaffee, 2013, p. 31). Bertrand Russell defines metaphysical philosophy as such, â€Å"Metaphysics, or the Philosophical Areas 4 attempt to conceive the world as a whole by means of thought, has been developed from the first by the union and conflict of two very different impulses, the one urging men towards mysticism,  the other urging them toward science. † Some of the major questions asked in this area of inquiry are, â€Å"What is the nature of reality? †, â€Å"What is the nature of self? †, â€Å"How are the mind and body related to each other? †, â€Å"Do we have personal freedom or are our choices limited? †, â€Å"What are the arguments for and against the existence of God? †, â€Å"Is there life after death? † and â€Å"Does life have meaning? † The methodology used in Metaphysics has expanded so much over the years since Aristotle. One method used for answering questions such as these â€Å"emphasizes the continuity of metaphysics with science. On this conception, metaphysics is primarily or exclusively concerned with developing generalizations from our best-confirmed scientific theories† (â€Å"Stanford Encyclopedia of Philosophy†, 2014). Because of the difficulty answering some of these questions, some believe Metaphysics to be â€Å"impossible. † There is no current way to label a metaphysical statement either true or false, and therefore â€Å"impossible to find out what they are† (â€Å"Stanford Encyclopedia of Philosophy†, 2014). Citations Chaffee, J. (2013). The Philosopher’s Way: Thinking Critically About Profound Ideas (4th ed. ). Upper Saddle River, NJ: Pearson Education, Inc. Stanford Encyclopedia of Philosophy. (2014). Retrieved from http://plato. stanford. edu/entries/metaphysics/ Epistemology Epistemology is the study of knowledge. This identifies and develops criteria, as well as methodologies, for what we know and why we know it (Chaffee, 2013, p. 31). Some questions asked regarded epistemology are, â€Å"What is truth? †, â€Å"Can we ever really know anything? †, â€Å"What Philosophical Areas 5 are the sources of knowledge? †, â€Å"What is the relation between truth and knowledge? † and â€Å"How can you increase your wisdom? † This, â€Å"Defined narrowly†¦is the study of knowledge and justified belief,† according to the â€Å"Stanford Encyclopedia of Philosophy (2014) or SEP. Now, this being said, there are sources of knowledge and justification in epistemology. These sources include perception, introspection, memory, reason and testimony. The limits to this branch of philosophy are skepticism, closure, relevant alternatives, denial, and moorean, contextualist & ambiguity responses (â€Å"Stanford Encyclopedia of Philosophy†, 2014). Citations Chaffee, J. (2013). The Philosopher’s Way: Thinking Critically About Profound Ideas (4thed. ). Upper Saddle River, NJ: Pearson Education, Inc. Stanford Encyclopedia of Philosophy. (2014). Retrieved from http://plato. stanford. edu/entries/metaphysics/ Ethics Ethics is the study of moral values and principles. Questions regarding ethics are things such as, â€Å"How should we treat other people? †, â€Å"Is there a ‘good life’ for humans? †, â€Å"What is the relation between moral values and religion? † and â€Å"How do we decide on the moral rightness of social issues? † (Chaffee, 2013, p. 31). Everyday ethical concerns in life can include any topic  from capital punishment, euthanasia, lying, human rights, abortion, animal testing, cloning, slavery and pornography, among several others. The purpose of having and studying ethics is a way for people to ensure that the decisions made are following a preset ethical code or guideline. â€Å"Creating yourself to be a wise and knowledgeable person entails developing an enlightened moral compass that will guide your decisions. People typically rely on what they ‘feel’ is right Philosophical Areas 6 when faced with challenging moral dilemmas. The but we ‘feel’ is an unreliable moral guide†(Chaffee, 2013, p. 35). Citations Chaffee, J. (2013). The Philosopher’s Way: Thinking Critically About Profound Ideas (4th ed. ). Upper Saddle River, NJ: Pearson Education, Inc. Political & Social Political and social philosophy is â€Å"the study of social values and political forms of government† (Chaffee, 2013, p. 31). â€Å"What is the nature of justice? † and â€Å"What is the most enlightened government? † are common points of inquiry from a political and social standpoint in philosophy. Political and social philosophy basically takes a look at the various methods people should govern themselves. According to philosopher, Baron D’Holbach, â€Å"Politics must conform to the essence and aims of society, not to the passions of rulers. † This means analyzing the values that the society should be based on, keeping in mind individual rights and justice. Citations Chaffee, J. (2013). The Philosopher’s Way: Thinking Critically About Profound Ideas (4th ed. ). Upper Saddle River, NJ: Pearson Education, Inc. Aesthetics Aesthetics studies beauty, taste and art. Two very distinct questions that are specific to this branch are as follows: â€Å"What is the nature of beauty? † and â€Å"What is art? † â€Å"It analyzes efforts to establish standards for beauty in all of its various manifestations. And it explores the nature and purpose of art in human affairs† (Chaffee, 2013, p. 37). Have you ever heard of the saying, â€Å"Beauty is in the eye of the beholder†? Well, this is the branch of philosophy that examines how to identify principles of beauty. Other questions related to this asked in aesthetics are â€Å"Are there Philosophical Areas 7 universal standards of beauty, or are they relative to cultural and individual taste? † and â€Å"Is there one core concept of beauty or many different concepts? † Citations Chaffee, J. (2013). The Philosopher’s Way: Thinking Critically About Profound Ideas (4th ed. ). Upper Saddle River, NJ: Pearson Education, Inc. Logic Logic is the branch of philosophy that â€Å"seeks to establish the rules of correct reasoning, clear understanding and valid arguments† (Chaffee, 2013, p. 31). â€Å"What are the logical principles of correct reasoning? † and â€Å"How do people use incorrect reasoning to reach false conclusions? † are questions associated with this branch. In this branch of philosophy, critical thinking is one of the most important skills needed. Citations Chaffee, J.(2013). The Philosopher’s Way: Thinking Critically About Profound Ideas (4th ed. ). Upper Saddle River, NJ: Pearson Education, Inc. Thought Development: Philosophy & Culture Religion, philosophy and culture are said to be the three pillars or elements of human reality. How does this tie into thought development? What is the relationship between philosophy and culture? â€Å"†¦compared to the feet with which Man journeys towards his destiny, philosophy could represent the eyes that scrutinize that journey, and culture, the earth on which Man is walking during his concrete pilgrimage†¦Ã¢â‚¬  (Panikkar, 2000). Depending on one’s approach to examining this matter, it may be difficult to separate religion from philosophy. For example, with an intercultural approach, it would not be possible, for religion and philosophy would both be dependent upon the culture. The reason that the two are inseparable sometimes is, according to Philosophical Areas 8 Panikkar (2000), â€Å"Philosophy is but the conscious and critical accompaniment of Man’s journeying towards his destiny. This journeying is called religion in many cultures. † Citations Panikkar, R. (2000). Religion, Philosophy & Culture. Retrieved from http://them.polylog. org/1/fpr-en. htm Personal Attachment to Inquiry Philosophical Areas 9 Epistemology is the branch of philosophy that sticks out to me the most and resonates closest to my innermost self. The runner up is metaphysics, because I do find myself questioning and wondering on the meaning of life and things of that nature. However, I have decided a long time ago that the meaning of life is specific to the person. Whatever it is that drives you, motivates you and keeps you pushing forward, that is your meaning; your â€Å"why†. Epistemology fascinates me because of its questions regarding knowledge and truth. Just because we know something, does that make it truth? In the Taoist religion, the journey you embark on is to enlightenment. The purpose of Taoism is to find truth and to see the whole picture, the entire picture, for what it is. Not many make it to such a spiritual level such as that, but that is the reason for working so diligently internally. I have always admired Buddhist and Taoist for these reasons. As far as cultural influence on my decisions goes, I would have to admit that the American culture does not have as much to offer (that I am seeking, at least) as other cultures do. I am proud of my heritage, but my culture is a different story. I feel like I’m searching for something, yet cannot pinpoint what that something is. Hopefully by the end of this course I will have a better outlook and idea of what that thing is. References Chaffee, J. (2013). The Philosopher’s Way: Thinking Critically About Profound Ideas (4th ed. ). Upper Saddle River, NJ: Pearson Education, Inc. Stanford Encyclopedia of Philosophy. (2014). Retrieved from http://plato. stanford. edu/entries/metaphysics/ Panikkar, R. (2000). Religion, Philosophy & Culture. Retrieved from http://them. polylog. org/1/fpr-en. htm.   

Free Speech Essay - 2198 Words

When you think about America, the first thing that comes to mind is liberty. Liberty of the government and its citizens is one thing that colonists exceedingly desired during the British oppressive regime. When United States gained independence, the Founding Fathers drafted the Constitution of the Unites States, a document that has been governing our country for more than 200 years. The constitution was drafted accordingly to ensure that people’s opinions were heard. What our Founding Fathers could not foresee is that in our 21st century, The Freedom of Speech not only gives a person such a massive power, but also an opinion even if it is immoral and goes against citizens’ values. Thesis statement The First Amendment is the right that†¦show more content†¦Furthermore, not only hates groups express their opinion tremendously, but also the press tends to over use its power. The issue with the press is that journalists often publish misleading and unverified information about public figures. Thence it gives a bad image for figures such as celebrities or politicians and manipulates the public opinion. For the past century, the Supreme Court has been protecting journalists from being sued on â€Å"libel† and â€Å"slander†. Not only it gives such an enormous power over public opinion to journalists, it makes people question the unfairness of the First Amendment. Transition Paragraph I chose this subject because foremost I am concerned with growing hate in this country. While the United States government advocating for diversity, people still believe that all Muslims are terrorists and gay people are immoral and dangerous as well. We live in civil tolerant society which is necessary for mankinds survival and if we continue to stretch unlimited tolerance to those individuals who are intolerant and immoral, we are simply going to become victims of the aggression of intolerance from these individuals. Moreover, the destruction of another human being is a criminal act and it doesnt matter whether a weapon is used or words. II. BODY Hate Speech #1 On March 10, 2006 it was funeral of MatthewShow MoreRelatedFree Speech Or Freedom Of Speech Essay911 Words   |  4 Pagesof Freedom, basically we are entitled for legal freedom to do whatever we wanted to. However, the freedom of speech has been challenged by many university students and educators recently. In their argument, they believe that free speech has triggered students’ unhappiness and jeopardize campus’ safety. What is the free speech or freedom of speech? According to dictionary, freedom of speech is the right of people to express their opinions publicly without governmental interference, subject to theRead MoreFree Speech Freedom Of Speech1689 Words   |  7 Pagesonce said, â€Å"Without freedom of thought, there can be no such thing as wisdom; and no such thing as public liberty, without freedom of speech.† With this quote in mind, freedom of speech should surely be guaranteed right in a every institution. There are various forms of free spee ch to powerful speeches at a peaceful protest to a girl posting a selfie. Freedom of speech is the key concept that is basis of every human right. This inherent right should be protected and supported in a place where youngRead MoreFree Speech Freedom Of Speech1180 Words   |  5 PagesFree speech shall not incite evil and hatred in this country. 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The freedom of speech gives an individual an opportunity to speak his or her mind and also give his or her opinion, sometimes on veryRead MoreFree Speech Freedom Of Speech1786 Words   |  8 PagesIntroduction Freedom of speech is a right of every American that is protected under the First Amendment of the United States Constitution. This democratic freedom allows citizens to speak and express themselves freely. Public school teachers and students are also free to express themselves, however they can both be limited by school administration. The goal of this paper is to analyze free speech as defined by the First Amendment and discussed limitations placed on teachers and students by schoolsRead MoreFreedom Of Speech And Free Speech1737 Words   |  7 Pages Freedom of Speech can only go so far before it starts to impede the right of the others, and free speech does not come before other people’s given rights.. According to Steven J. Heyman in the article â€Å"Free Speech Has Limits,† freedom of speech comes tied together with respecting the freedom of other and the rights of other people (par. 4). The author goes on to say that cutting off other peoples rights in the name of free speech can be seen as wrongful and can be faced with consequences (parRead MoreFreedom Of Speech : Free Speech1296 Words   |  6 PagesFreedom Of Speech In 399 B.C, the Greek Philosopher Socrates was persecuted for an early argument promoting free speech. Later on, The Protection of Speech was first introduced when the Magna Carta was signed in 1215, and in 1948, the United Nations stated that free speech is a human right and drafted into the international Declaration of Human rights.The government doesn t have the right to make a law abridging the freedom of speech because Free Speech is a form of democracy and it s a fundamentalRead MoreFree Speech Freedom Of Speech886 Words   |  4 Pagesunlike any other. The issue? Free speech. Protesters from both sides of the the political spectrum are outraged. leftists claiming that free speech is â€Å"being used as a cover for spreading hate in America†, that people like the infamous Yiannopoulos (a conservative political commentator known for making offensive statements and supporting â€Å"white supremacy, transphobia, and misogyny†) are doing harm with their first amendme nt right, while conservatives are claiming free speech is being threatened by theRead MoreThe Rights Of Free Speech1182 Words   |  5 Pagespresence of hate speech against minorities and how to appropriately resolve issues of hate speech without infringing on the rights of free speech that is important for the existence of democracy. The purpose of using this document by Emily Foster is to use the contents of the article to help support their current position on the act of democratic censorship, but wither it be in a way to promote censorship in order to maintain order, or to remove censorship as a way to promote free speech is unclear toRead MoreFree Speech And Hate Speech1000 Words   |  4 Pagesbetween hate and free speech is, and what the first amendment does to control them both. The first amendment states that congress shall make no law that abridges the freedom of speech. But to what extent should language be protected? The rights of one man should reach until they shadow over another’s. Meaning free speech is protected until it violates the rights of another. Hate speech is the line where free speech becomes unconstitutional. The contrast between free speech and hate speech is a heavily