The use of DDT in malaria vector control Essay Example | Topics and Well Written Essays - 750 words

The use of DDT in malaria vector control - Essay Example DDT is slowly absorbed in the gastrointestinal tract; however, if the DDT has been dissolved in fats from vegetables or animals, then the absorption rate is enhanced up to 1.5 times. The oral ingestion of DDT usually results in convulsions after 2 hours, if the rate of administration is twice that of the oral LD50 value. It has also been established that absorption of DDT by the skin is minimal (DDT). Subsequent to absorption, DDT accumulates in the tissues, especially in the adipose tissue. Many studies have reported the storage of DDT in the central nervous system, blood, liver, heart and kidneys. The body excretes DTT in milk and urine (DDT). A small amount of the ingested DDT changes into DDE, whose toxicity is much less. The latter is impervious to biotransformation, and consequently persists in the adipose tissue, indefinitely. The chief detoxification route for DDT is transformation to DDD, which quickly changes into the water soluble DDA, and then excreted (DDT). The rate of elimination of DDT from the body has been assessed at 1% of the amount stored in the body. DDA excretion in the urine is around 47% of the ingested precursor material; however, this loses significance, when the amount of DDT being ingested increases. Moreover, there has been a reasonable correlation between the DDA concentrations in urine and DDT levels in body fat (DDT). The different routes of exposure, associated with DDT are first; oral which transpires when there is ingestion of DDT or food contaminated with DDT. Second; by inhalation; however, this is not of much importance, because absorption is insignificant, due to the non – volatile nature of DDT. Third; absorption through the skin, which is not an important route. DDT absorption by the skin is negligible, and an increase is effected, if it is dissolved in oil. Fourth; absorption through the eye,

A Second Chance Essay Example for Free

A Second Chance Essay It was my chance to prove myself; I was about to go out there and audition for a talent show through singing and playing the piano. I was so sure that I would do it, since I knew the judges personally and they were already aware that I had the talent. I haven’t actually practiced the song as much as I was supposed to, but I was certain that I would know it properly since I have practiced before several times. I was waiting for my turn, and while I was waiting, I was starting to get nervous and tense about the whole thing. When I was up, I took a deep breath and started playing the song. The first thing I did wrong was mix up the notes. The first time was excused as it was thought to be normal and that everyone makes mistakes. The second time was also excused, the third, the fourth.. It was starting to get irritating. Other than the note mix up, when I started to sing, my voice went too high and I started to get out of breath. In addition to this, I forgot and mixed all the lyrics of the song. This made me stop in the middle of the song excusing myself for all the mistakes that I’ve done. Since the judges were my friends, they were totally understandable; they realized that I was nervous and that I am good at this, despite my failed efforts. This made me feel miserable. I have failed to preform something I have known and been playing for almost a year. I couldn’t sing the song without making a word mixup every now and then. I informed the judges the next day that I would like to audition again, and this time I was going to do it right. The minute I told them I was going to audition again, I went home searching for a completely different song to preform, and this time I was going to focus on singing it only. I found the perfect song, and once I did I started practicing on it. I have noticed that the last time I auditioned, I was nervous when my turn was up, so I decided to ask different people I knew to hear me out, and anytime I would get nervous I would randomly start singing, to try and overcome my fear of preforming in front of a crowd. When the day of my second audition finally arrived, I was assured that I would do it this time, given the fact that I have practiced beforehand and tried to overcome my fear. The minute I preformed, I felt a tinge of nervousness, but then It was like I was preforming to myself, not scared at all. I was confident enough and because of this I did a good job and the judges loved it. This made me realize that once you set your mind on something, even if you fail it once, you can always achieve it. If you have the will to do it, you will succeed. The second thing I realized was that you should always, ALWAYS make sure you are prepared for any situation that may arise, even if you think you know how to handle it. After all, practice makes perfect. This has made me believe that I should never give up on where I want to study, and even if I don’t get accepted the first time, I can work harder and apply again, I have nothing to loose. I should believe in myself and prepare myself for what’s ahead and will hopefully succeed.

Internal Point Of View Role Harts Theory Philosophy Essay

Internal Point Of View Role Harts Theory Philosophy Essay Jurisprudential debate concerning the nature of law is often thought of as a long-running battle between two schools of thought the rival camps of natural law and legal positivism. The natural law tradition has always emphasised laws grounded ness in justice and the common good, while legal positivism had tended to emphasise laws basis in authority. Legal positivism emerged from the work of Jeremy Bentham and his disciple John Austin. John Austin famously claimed that the idea of sanctions is the key to the science of jurisprudence.  [1]  Thus, he held legal rules to be threats backed by sanctions and statements of legal obligations as predictions that the threatened sanctions will be carried out. Furthermore Hans Kelsen sought to explain legal rules and obligations in terms of norms, he understood these norms to be directives to courts requiring that sanctions be applied. Splitting the difference between Austin and Kelsen, Alf Ross conceived of legal rules as norms addressed to courts directing the use of sanctions and statements of legal validity as predictions that these norms will be followed. However, one of the two greatest twentieth-century (the other one is Hans Kelsen) exponents of the legal positivism was, without question, Hart. In his principal book The Concept of Law  [2]  , Hart describes the central thesis of legal positivism as the simple contention that it is in no sense a necessary truth that laws reproduce or satisfy certain demands of morality, though in fact they have often done so.  [3]  Therefore the central claim of legal positivism is that law is separate and distinct from morality. However, Hart showed that sanction-centred accounts of every stripe ignored an essential feature of law. This feature he termed the internal point of view. Though the internal point of view is perhaps Harts greatest contribution to jurisprudential theory, this concept is also often and easily misunderstood. Seen from the internal point of view, the law is not simply sanction-threatening, directing, or -predicting, but rather obligation-imposing. Therefore, what, exactly, is the internal point of view? What role (or roles) does it play in Harts theory? Briefly the internal point of view is the practical attitude of rule-acceptance it does not imply that people who accept the rules accept their moral legitimacy, only that they are disposed to guide and evaluate conduct in accordance with the rules. The internal point of view plays four roles in Harts theory: (1) it specifies a particular type of motivation that someone may take towards to the law; (2) it constitutes one of the main existence conditions for social and legal rules; (3) it accounts for the intelligibility of legal practice and discourse; (4) it provides a naturalistically acceptable semantics for legal statements. At one point, Hart observes that the element of authority involved in law has always been one of the obstacles in the path of an easy explanation of what law is  [4]   Hart argues that the command theorists emphasised force as the main component of all law and have looked only on one side of the coin the external element of law which compels people to act out of fear. This may be the bad mans view of the law and Hart argues that it does not present a balanced picture. A positivist theory of law must offer an account of the nature of law-making authority. At the same time, positivists claim that the validity of a law does not entail an obligation to obey it. This means that the theory is quite independent of any theory about the basis of a moral obligation to obey the law. Bentham and Austin approached these problems by treating statements about sovereignty, rights and obligations as straight forward statements of observable social facts. Therefore in focusing only on the commands of a sovereign and the actions of officials in imposing sanctions, the command theorists have ignored the internal element which characterises all law. This is known as t he internal point of view which make people feel a sense of obligation to obey the law. There is a distinction between the two aspects of law, to be obliged that is to be forced to act in a certain way because of some threat, such as when an armed man orders a person to hand over money, and to be under an obligation that is to feel within oneself a sense of duty to act in a certain way without some external stimulus compelling such action. Hart also argues that the command theories explain law only in terms of the first notion, and that to this extent they are inadequate, because the law operates both in an external and an internal fashion to induce compliance. According to Stephen Perry, for example, [t]he general idea of the internal point of view is that an adequate jurisprudential account must at some point take into consideration how the practice looks to at least some of the practices participants, from the inside.  [5]  Likewise, Gerry Postema writes: The law, like other similar social practices, is constituted not only by intricate patterns of behavioural interactions, but also by the beliefs, activities, judgments and understandings of participants. The practice has an inside, the internal point of view of participants.  [6]   On this reading, Harts doctrine of the internal point of view is a methodological prescription which demands that legal theories resonate with the shared experiences of legal natives. Jurisprudence must take the point of view of the insider, and come in contrast with those theories that ignore the beliefs and attitudes of those who live under the law. Hart used the internal point of view to discredit sanction-centred theories of law, such as those proposed by Oliver Wendell Holmes and Hans Kelsen. Hart argued that these theories are myopic for they ignore or mask the range of attitudes that people typically have towards the law. The problem with bad man theories such as Holmes is that they assume that people are motivated to follow the law solely in order to avoid sanctions, rather than for the reason that rules require such behaviour. These theories, Hart says, define [the internal point] of view out of existence. The problem with Kelsens theory, he claims, is that it focuses exclusively on one technique that the law uses to motivate conduct to the exclusion of all others. The law not only directs officials to punish those who dont comply with the rules, but provides guidance for those who want to live up to their obligations. Holmes bad man is an insider himself, namely, one whose curiosity about the law is aroused solely by his aversion to sanctions. The problem with Holmes theory, rather, is that he privileges one type of insiders point of view over another. By focusing solely on the perspective of the bad man, sanction-centred theories define the other point of view, namely, the internal point of view, out of existence. What, then, is the internal point of view? As Hart used the term, the internal point of view refers to the practical attitude of rule-acceptance. Someone takes this attitude towards a social rule when they accept or endorse a convergent pattern of behaviour as a standard of conduct. Whereas the phrase the internal point of view is univocal it refers to a specific practical attitude. With respect to the practical point of view, there are two attitudes the insider can take towards the rules: acceptance and non-acceptance. Anyone who accepts the rules has, according to Hart, taken the internal point of view. Anyone who does not accept the rules, either because they are like the bad man and take the practical, but non-accepting, point of view, or because they are merely observing and hence dont take a practical stance at all, has taken the external point of view. Harts internal point of view, therefore, is the practical attitude of rule-acceptance. But what exactly does it mean to accept a social rule? Hart says that to accept a social rule is to regard a pattern of behaviour as a general standard to be followed by the group as a whole. It is to treat existence of the rule as a reason and justification for action, as the basis for claims, demands, admissions, criticisms or punishment, as establishing the legitimacy of these demands and criticisms. Hart is quite clear that one does not have to believe in the moral legitimacy of the law in order to accept its authority. Given that the internal point of view is not the moral point of view, what does Hart mean when he characterizes it as acceptance of a rule as a standard of conduct? When one takes the internal point of view towards a rule, one acts according to the dictates of the rule. Of course, there must be something more to the internal point of view, given that the bad man also conforms to the rules. The second way in which the internal point of view is expressed is through critical evaluation. Thus, participants who accept the rules criticize others, and perhaps even themselves, for failing to conform to the rules. Finally, the internal point of view is usually expressed by statements that use normative terminology such as ought, must, right, and wrong.22 Thus, if someone accepts the rule that men must bear their heads upon entering a church, this practical attitude might be expressed by statements of the form: You ought to take off your hat in Church or It was wrong of me not to take off my hat last Sunday. Hart calls these statements internal statements, because they normally express the internal. point of view.23 Hart contrasts these practical statements with theoretical statements that others accept a particular rule. For example, someone might say, Episcopalians accept a rule requiring men to take off their hats in Church. Hart calls these external statements because they usually express the external point of view.24 They are statements that a particular group accepts certain rules normally made by t hose who do not accept those rules themselves. Harts internal point of view must be understood as a commitment to act in all of the above ways. That is, one takes the internal point of view towards a rule when one intends to conform to the rule, criticizes others for failing to conform, does not to criticize others for criticizing and expresses ones criticism using evaluative language. At first impression Hart conception of law, as a symbiotic relationship between primary and secondary rules, and more importantly the internal aspect seems valid. Hart concept of the internal aspect distinguishes between social rules and social habits. A crucial distinguishing feature from a social habit and a social rule is that habit lack criticism from others in a group when the convergent behaviour is deviated from. Deviation from the convergent behaviour makes criticism and the rule legitimate, and often is manifested through normative language such as you ought to or you should do, a certain type of behaviour. The internal aspect and therefore rules is an important constituent for Hart conception of law, because essentially law is the union of primary and secondary rules. A primary rule imposes duties and prescribes how one must act by way of recognizing a general standard mode of behaviour. The secondary rules consist of the three important characteristics, which can be charac terized as sub rules, which give the concept of rules as law and obligations, but more importantly, law as a system of rules. First is the rule of recognition, which helps to determine whether a rule is indeed a rule, this is determined by the influx of criticism for deviation of the rule and the existence of social pressures to conform. The second, denoted as the rule of change, which allows for the creation of new primary rules or the change and modifications of old rules for the group to live by, these rules are also subject to procedural standards. The final characteristic is the rule of adjudication that determines whether or not a primary rule has been violated and prescribes the procedure the courts must follow to apply sanctions. Indeed the mosaic of the internal aspect, a primary and secondary rule as law is very attractive, for Hart is able to explain where Austin has failed. Primary rules are laws, because they are general and span over the territory in which the sovereign has authority, and secondary rules are a means to enforce and amend the laws. However Hart analysis

Protest Against the WTO in Seattle Essay -- World Trade Organization P

Protest Against the WTO in Seattle The people assembled in the streets of Seattle were labor unionists and environmentalists, lumber workers and forest activists, students and teachers, farmers and cheese makers, Germans and Ukrainians, Africans and Asians, North Americans and Latin Americans, gays and straights, human rights activists and animal right activists, indigenous people and white urban professionals, children and elders. Some wore business suits, some overalls, some wore sea turtle costumes, some leather and piercings, some wore almost nothing at all (Reed 2005). A very diverse group joined together in Seattle, Washington in November of 1999 to fight against the World Trade Organization (WTO) and its unfair policies. Despite the differences in nationality, race, religion, and ideals of the crowd in Seattle, tens of thousands of people formed one united front in the fight for global equality. Through a strong network of organizations, revolutionary technology, and alternate media coverage, activist s of the global justice movement banded together through diversity to form one collective identity. Although music was not an integral part of this movement, the creativity that shined in Seattle, added to this already strong feeling of unity. Without the ability of this diverse group of nations and peoples to gather on the streets of Seattle, these revolutionary protests against the World Trade Organization would not have made such an impact on the world today. Seattle was not the first place that anti-globalization ideas were voiced, but it was the first taste of how strong the forces against global imbalances really were. This protest was the first place where the ideas... ...nt Effective?. Global Governance, 10(2), 207-225. Retrieved Tuesday, October 10, 2006 from the Academic Search Premier database. Parrish, Geov. 2004. â€Å"Is this what failure looks like?† Seattle Washington: Seattle Weekly Media, Retrieved October 16, 2006. Reed, T.V. 2005. The Art of Protest. Minneapolis, MN: The University of Minnesota Press. Schott, Jeffery. 2000. The WTO After Seattle. Washington, D.C: Institute for International Economics. Starr, Amory. 2000. Naming the Enemy- Anti-Corporate Movements Confront Globalization. New York: Zed Books Ltd. Taylor, Rupert. 2004. Creating a Better World: Interpreting Global Civil Society. Bloomfield, CT: Kumarian Press, Inc. World Socialists. 1999. â€Å"The social meaning of the anti-WTO protests in Seattle.† Seattle,Washington: World Socialists Web Site, Retrieved October 15, 2006. (www.wsws.org/articles).

Coca Cola External Environmental Factors

During the strategic marketing management process, there are many external forces that any company must be aware of in order to be profitable. These very important factors to be considered come in the form of technology trends, economic and government trends, consumer trends and innovations. It is very important to become aware of all of the potential opportunities and threats that may arise from these trends. I believe that for Coca-Cola, there are external forces in all of these areas that they must be aware of and incorporate into their planning if they are to continue to be successful.When it comes to technology, in recent years there are many emerging trends that I feel that Coca-Cola could use to their advantage. The popularity of services such as Twitter and Facebook may give Coca-Cola the opportunity to spread the word about their products to territories that haven’t yet been reached by their competitors. Since the majority of people use these services all over the wor ld, we feel that it is a great place for them to advertise.While it is still very important to have advertisements on television, more and more people are using the internet, and we feel that by collaborating with internet companies, they would be able to increase their profits. In addition to the increased use of the internet, another technology trend that Coca-Cola should be aware of is the production of bio-degradable bottles. Today’s plastic bottles are very bad for the environment and people are aware of this. Until recently, there was only technology to produce plastic that was made from petroleum.Now though, in the year 2010, there is technology to produce plastic that is made from plants. This plastic, also known as PLA or polylactide, emits fewer greenhouse gases, uses less energy than other plastic bottles and is also recyclable and compostable. We believe that since the environment is such a high priority in everyone’s minds, they should take advantage of th is technological development. Economic and Government trends are an extremely important part of the external environment. Since consumers are directly affected by the status of n economy, a company should always be aware of the economic conditions in the countries in which they operate. Currently, all over the world, we are dealing with a recession. The unemployment rate is very high, and as a result, consumers have decreased buying power. When consumers have less income, the first thing that they stop buying are luxury goods. In my opinion, Coke is a luxury item and not a necessity. I feel that if Coca-Cola wants to continue to be successful in the current economic conditions, they must begin to produce goods that people must buy. An example of such a product would be dairy products, like milk.While a consumer who has a strict budget may skip purchasing Coke, they will not skip on purchasing milk. While technological and economic factors are extremely important to Coca-Cola, we fee l that currently, the most important factor that needs to be addressed are changing consumer trends. Today, consumers are becoming more and more health conscious. When people purchase a food or drink, we think that they would ideally prefer something that has some health benefits to it. Coke has always been criticized for being bad for your health due to the food coloring, carbonation and high-fructose corn syrup.While we don’t believe that it is likely that Coca-Cola will lose much business to other cola competitors such as Pepsi, I do feel that they will lose business to companies that are producing healthy alternatives to cola, such as fruit drinks. I feel that Coca-Cola should be innovative and possibly consider changing some of the ingredients in Coke, such as using natural sugar instead of corn syrup and natural sources of food coloring rather than chemicals. Another very important consumer trend that should be noticed by Coca-Cola is the increasing population of Hispan ics in the United States.Hispanics make up a very large part of the population, and Coke isn’t marketed specifically to this ethnic group. We feel that if Coca-Cola marketed more directly to Hispanics, they would increase their profit. Lastly, a very important consumer trend is being â€Å"green†. As previously mentioned, consumers in the United States, as well as the majority of other countries in the world, are very concerned with the effects of pollution and the general well being of the planet. Coca-Cola’s biggest competition is Pepsi. In the past year, Pepsi has introduced the â€Å"Pepsi Refresh Project. †This program awards funding to people in America who have come up with great ideas on how they can improve their community. Some of the ideas that have been funded by Pepsi so far are making school buses more eco-friendly, growing fresh produce at schools to fight childhood obesity and making buildings in cities more energy efficient. In 2010, the Pepsi Refresh Project will give away more than $20 million to people with similar ideas. Each month, Pepsi will accept up to 1,000 new ideas every month and will award up to $1. 3 million in grants to the ideas who have received the most votes by other consumers.We feel that this is a very effective way of bettering the world that we live in and that Coca-Cola should do something very similar. Pepsi has so far only implemented this program in the United States, so this gives Coca-Cola the opportunity to use this idea on a global scale, and extend the benefits to other countries. We feel that being â€Å"green† is a very important consumer trend, and if Coca-Cola used a similar program across the world, they would begin to develop an image where they have the environment’s best interest at heart, and will gain the support of people all over the world as well as increasing their profits.

Charles Lindberg essays

Charles Lindberg essays Have you ever heard of a man named Charles Lindberg? He was not just any man; he was great man, a flying man, a man with a goal. When you hear the name Charles and the name Lindberg used in the same sentence in chronological order you think of a pilot from back in the day. What most people dont know is that his story begins on a farm near the banks of the Mississippi river in Little Falls, Minnesota. Aviation came to his liking the first time a plane fly over his house; it was love at first sight. He attended high school in Little Falls, Minnesota; his high school career came to an end in 1918 when he was excused from his senior year to work the farm for the war effort. After that he stayed at home and ran the farm for an additional year before venturing off to the University of Wisconsin which was located in Madison, Wisconsin. He began to study engineering there, in his second year he decided to transfer to Lincoln, Nebraska flying school. He was made and served as a mechanic and parachute jumper. He bought his first plane in 1923 and then made his first solo flight. He loved flying so much that a year later he joined a U.S. Army flying school in San Antonio, Texas. He began to haul mail for the Army between Chicago and St. Louis. In St. Luis he got some business people to invest in him so he could attempt to win 25,000 dollars by winning the Orteig Prize. To win this prize you would have to fly non-stop from New York to Paris. To me that seems like a pretty daunting task, especially if it had never been done before; but I definitely would have gone for it. He did go for it; he started by helping design the plane he was to fly from New York to Paris. It was a monoplane which means it was a one wing plane. The plane was named The Spirit of St. Louis. Lindberg flew the plane from San Diego to St. Louis and then from St. Louis to New York. He set records for each l...

The Barbican Complex essays

The Barbican Complex essays In 1951 the City of London Corporation held a design competition for the building of a new community in the boundary area of central London. Geoffry Powell won this competition along with two other teachers from Kingston Peter Chamberlin and Christof Bon, who formed a partnership to execute the design. The competition received a lot of notoriety partly because of the emphasis on designing a big new residential project, mainly because this event marked the arrival of the planning ideas of Le Corbusier in England. This new project was called Barbican and sited on 42 acres of land. By that time the brutalist architecture HAD flourished in England, which originated from the modernist architectural movement. A typical example of this movement could be the Barbican complex, because it was a part of those buildings which were linear, fortress-like and blockish, often with a predominance of concrete construction. The Estate was a concrete mega structure, which did not appel to many people, as well as the style in which it had been built. That is why the complex gained its notoriety from. Barbican was built on a post-Second War blitzed wasteland by the architects Chamberlin, Powell and Bon, as I already mentioned. It is a masterpiece of asymmetrical, formal planning, built in reinforced concrete and hammered granite. Many may not see the beauty of its construction and open spaces, but it should receive acknowledgement, as it was constructed in difficult times with the purpose to re-populate the central part of London. The history of the complex is very interesting still. Planning began in 1956, but the actual work on it did not start until 1963 and it was finally finished in 1981. The building of the complex may have not been fast but the results are quite fascinating, from my point of view. As overall it is not the most interesting and good looking place, but it has got quite interesting interiors which I will mention in short. The Barb...