Environmental Economics Essay Example | Topics and Well Written Essays - 1250 words

Environmental Economics - Essay Example It is the study of environmental policies and to see how well the businesses abide by these when striving for profits. The major and common costs that these companies levy are air pollution, noise pollution, toxic and solid waste in water harming the water quality and global warming. Since about a decade, these environmental hazards have kept increasing extremely rapidly and rampantly. Thus, there is a now a sense of urgency to get rid of these problems completely. However, this has become very difficult; millions of policies have been formulated by the government and various organizations, but is they still do not produce the desirable results. One another major issue that has been faced since many years is the 'carbon emission'. Coal is one of the biggest energy resource currently used; it accounts for 50% of the electricity produced in the United States. Today, fossil fuels are a source of 80% of the world's energy needs; coal accounts for 25%, natural gas 21%, petroleum oil 34%, nuclear 6.5%, hydro power 2.2%, and biomass and waste 11%. The resources that are environmental friendly such as geothermal, solar and wind are responsible for only a measly 0.4% of the overall demand in the world. The US alone produces 1.5 billion tons of carbon dioxide from coal-burning power plants. Also, it produces great amounts of nitrogen oxides, sulphur oxides, mercury emissions and other combustible gases when coal is burned. This makes it very clear how harmful the usage of coal is for our environment. The Massachusetts Institute of Technology conducted a study and made a report called 'The Future Coal' in which they examined all developing countries that try to alleviate global warming and their usage of coal. This report discusses the hazards of global warming and how countries should restrict the emission of carbon dioxide and other greenhouse gases. It also focuses on how coal remains and important and indispensable part of every country's production, how there is a need to control the carbon emissions and then how these countries need to take care of emissions yet make use of coal to meet urgent and large energy needs. However, at the same time, this reports deals with future technologies that can be used in place of coal to meet the goal of reduced coal emissions. The main reason why businesses and producers go for coal is that it is inexpensive and abundant. Coal can be used at only a cheap cost of $1 - $2 for each MMBtu compared to $6- $12 for gas and oil (The Future Coal, 2007). Also, coal mines are evenly distributed and spread and can be found everywhere, for example United States, China, India etc; except for only a few regions such as Persian Gulf, where instead are huge oil and gas reserves. The non-carbon emitting resources, mainly nuclear and renewable, are not available everywhere; thus, these areas still rely on coal despite all the policies and awareness of carbon hazards. The positive point of following this report is that it does not advocate certain policies that improve the environment; it diverts all its findings towards the technologies that can be used if these policies are actually followed by people. It is only natural to ask for an alternative if a certain act is prohibited; and that is exactly what The Future Coal is focusing on. This study focuses on technologies that

Airplane Evolution Essay Example | Topics and Well Written Essays - 4500 words

Airplane Evolution - Essay Example The historical development of airplanes brought several trials and inventions that were trimmed down to create an aircraft that shall able to cope up with wind velocity and gravitational pull. Even before the inventions of the Wright brothers in the 18th century where gliding planes became the fundamental outline for modern planes, many engineers and inventors aspire in building an aircraft through their sketches and visual designs substantiated by mathematical equations. Nevertheless, modern planes emerged from collective efforts of inventors and engineers in the recent centuries. Part of the building and development of modern planes are previous inventions such as the windmill which will serve as the early plane propeller, the kite as wings, and definitely the modern helicopter. Modern airplanes today are significant equipment both on commercial used, military used and in space explorations. Also economic growth especially on export dependent countries, faster consignment of goods to countries with the use of private planes can create economic bombasts. Such is the achievement on the invention of airplanes. I. History. Body I. History. Part of airplane history is the desire of men to fly and glide in the air as birds do. Even in mythology, flying was then perceived. Daedalus the Greek prisoner in Greek mythology was imprisoned along with his son Icarus by King Minos in the Minotaur's labyrinth. To escape the devour of the Minotaur they decided to flee through flying. Using wax as wings they escape the labyrinth. With the joy of flying, Icarus flew through near the sun and this cause his death. The wax melted and he drowned in the Aegean Sea. Daedalus however managed to escape. This myth has become the aspirations of men that someday an equipment or a birdlike aircraft would be invented. Several centuries past and the myth became a modern tale, the Puritan fairytale. According to the tale, the period of experimentation on inventing airplanes is in its height during the 17th century. Leonardo da Vinci's brilliance is their epitome. Da Vinci's ornithopters were a piece of draft that was supported with math ematical equations. His mind was preoccupied with bird flight and with flapping-wing machines. It is in this premise that his flying machine focused. Da Vinci's work lack technical value, that is why his flying machine was not considered a great achievement but just a draft that needed further replenishment. In 1714 Emmanuel

Effective leadership Essay Example | Topics and Well Written Essays - 1500 words

Effective leadership - Essay Example Discussion Lincoln’s Presidency is remembered for the American Civil War and the abolition of slavery, a goal for which he himself unfortunately had to pay the ultimate price of losing his life at the hands of John Wilkes Booth, a Confederate supporter. Yet Lincoln’s commonsense and well thought out approach to leadership makes us look at his life and principles again and again. He was a man who truly practiced what he preached. His undying and concerted efforts not only won the war for the Union but he also led from the front, marshalling and advising his forces and generals, while raising support and winning over the common man to the cause of freedom and equality for all, one of the principal features of our constitution and the American way of life, where each is free to do as he likes in the pursuit of happiness for the collective good of all. The author has very cleverly structured the book into four sections: People, Character, Endeavour and Communication. Abraha m Lincoln’s way of dealing with people was rather unique, and as the author puts it, he may have been one of the earliest leaders to advocate and follow the principle of Management by Wandering Around, as later defined by Peters and Waterman in their bestseller ‘In Search of Excellence’. Lincoln believed in getting out of his office and circulating among the troops (Phillips, 14). Of course, where he could not do it in person, his messages of encouragement and comfort were instrumental in raising the troops’ morale and winning over many a man to his cause. During the four year Civil War, Lincoln spent a lot of time with the War Office, the Army and the Navy, inspecting troops and weaponry and noting their capabilities. He wanted the latest information at all times and is even known to be one of the only Presidents that came under enemy fire in a war situation. Lincoln walked across to his Secretary of State Edwin M. Stanton’s office every day to get the latest on the war situation. Besides having his weekly meetings at the set times and locations, Lincoln was often known to call extempore sessions of his cabinet and advisors as the need arose. Rather than lock himself away in an ivory tower, Lincoln loved to roam among the people. He would make himself accessible to most people almost 75% of the time, and believed that these ‘public opinion baths’ were necessary to gain the support of people as well as make himself a visible leader while garnering the thoughts and opinions of the populace. He favored as little security and protocol as possible, believing that a true and righteous leader had nothing to fear. Lincoln was also known to be an approachable leader with an efficacious, amicable style. He had an open door policy with all men reporting to him and wished to be visible and available to them. In the chapter Build Strong Alliances, the author wants to show us how the President used his wit, charm, communicatio n and oratory skills to win not only Court arguments while in his practice at Springfield but also to opponents and people on the sidelines regarding the slavery issue. Lincoln was full of wisecracks, anecdotes and stories that would help in winning men over to the cause of emancipation. Another of Lincoln’s erudite principles of leadership was Persuade Rather than Coerce (Phillips, 39). Lincoln

Contrast Safety in MRI Essay Example | Topics and Well Written Essays - 750 words

Contrast Safety in MRI - Essay Example It is a Phase III study and has been done at multiple locations using a double blind procedure, where the interpretation was done by two independent readers who had access only to the images obtained. According to the authors this study is the first of its kind as it was performed as a multicenter study at twelve centers in seven different locations in Europe and on three different kinds of imaging equipment from different manufacturers. The concept of single and triple rate of dosage has also been evaluated for the first time. A wide variety of statistical tools and software have been used which have yielded significant results. 105 patients were chosen for the trial and divided into two groups. At the initiation of the trial only 80 were short listed. 43 of them (81%) were chosen for the single-dose group I (0.1mmol/Kg body weight) and 37 (71%) for the triple-dose group II (0.3 mmol/Kg). All these patients had a history of ischemic and coronary heart disease, thrombosis, arterial hypertension, hypercholesterolemia, and/or diabetes mellitus. The results of MRA of these two groups administered two different doses of Gadodiamide were compared with those of digital subtraction angiography (DSA). The main effectiveness parameter for comparison of the two dose groups analyzed was the contrast index (CIx), which was calculated from the signal intensities measured in the regions of interest in the abdominal aorta at the aortic bifurcation and 2 cm proximal and 2 cm distal to the main stenosis. The difference in degree of stenosis was analyzed overall and for three categories. Category I consisted of stenosis of 69% or less; category II, stenosis between 70% and 99%; and category III, occlusions. The independent investigators compared the pre contrast MR angiographic, post contrast MR angiographic, and DSA data Post contrast MR angiography resulted in a diagnosis modification in 70% and 72% of

Do Patients Really Have a Choice in Anaesthesia and Surgery Essay

Do Patients Really Have a Choice in Anaesthesia and Surgery - Essay Example The mere condition of having sensation blocked or the nerves being desensitized is not accepted by many and there may be each to their own reasoning for it. The anesthesia is used to avoid the person undergoing surgery from pain or distress. For different issues, different kinds of anesthesia may be used. There is general, local, regional and dissociative anesthesia, each one used in different cases as each one has their own varying effects. Consent, is now an integral part of pre anesthetic consultation. Nowadays, given the evolved role within the health institutions, plus the legal and ethical issues, the patients are informed about the procedure they will be subjected to during the surgery. Disclosure of information seems to be the most legal and ethical discussion in the consent process. Given the function of any anesthesia, this consent is vital. This reinforces the idea that the given ‘consent’ to the patient before any surgery, is not actually being asked to accep t a procedure but is being offered a range of options from which to choose. Any medical profession indeed respects the patient’s reasoned choice and their right in law to refuse treatments. As anesthetists, the consent process can serve more than one purpose. It protects the practitioner from any ethical or legal issues. It ensures that the patient has agreed to the given way of treatment. The consent is a representation of the choice the patients have today in this. (Slater. R, 2007) No matter what examination or treatment one has to undergo, one may ask their anesthetist if there is any choice in the anesthetic method. One should also understand that some surgeons are more content operating on patients who have received one form of anesthetic rather than another. This most often means that the patient has a general anesthetic, which involves temporary unconsciousness. The article on All about Anesthesia, Do you have a choice, talks about the surgeon not having to choose the type of anesthesia one will receive, unless there is no anesthesia involved in one’s case. (2012) However, the surgeon may discuss the choice with the patient and with their anesthetist. In the same way, ones anesthetist does not choose what operation one will have or how it will be carried out. Again, ones anesthetist may discuss the operation with the patient and the surgeon, particularly if one has special anesthesia problems. The type of anesthesia varies with the given situation. Example for a finger ligament being torn off or the finger’s bone being broken may allow for local anesthesia, this type of a surgery allows a choice from the range of anesthesia. On the other side, during a caesarian, spinal or epidural anesthesia can be used. This type of scenario may allow less choice for the patient because general anesthesia may be harmful to the baby. Another case may involve a heart surgery, which will involve the use of general anesthesia and confine the choice o f the patient. Given the intensity of the situation like a heart surgery, a patient can not choose spinal anesthesia for their own good. This aspect suggests that a patient’s choice depends on the situation they are in. The beginning of this article stated a brief case where the patient would not agree to get their sensation paralyzed for a while, may be due to a range of reasons. These may involve the patient not approving the idea of losing control, issue of allergy,

Quantitative Methods Research Paper Example | Topics and Well Written Essays - 2500 words

Quantitative Methods - Research Paper Example The importance of the co integration concept in the economic literature is due to the possibility of linking. The linking is due to the information about long run equilibrium of LTK and LOBC. The statistical evidence of short run dynamics in observed series helps in estimating the integration between the values. The each element of a vector of time series need to have a unit root. If there exists a linear combination, then it is stationary. A non parametric approach can be proposed to study the co integrated system. A discrete time p variate integrated process of order d with drift can be defined by square of Yt. Yt is the integration of values from Y1 to Yt. In 2001 the IMF board meeting held in 2001 paved the way for long awaiting IMF loans that have exceeded the limit of US$16 billion. These will have supplementary facilities also. The financial markets have been swarmed with a flow of good news and the application of banking reacpitalisation and the international cojuncture will be variables that divert the direction of the markets. The redemption of USD61 billion of domestic by treasury and the borrowing of USD 46.5 billion has initiated the availability of investments for the industries. The treasury aimed to reduce the total debt stock to Gross national product ration to 86.9 percent in 2002. The previous one is 94.7 percent. This indicates the increase of GNP and a chance of increase of productivity and share prices. It is believed that the longer dated T-bills and other higher real returns around 20 percent annualized comparison to shorter dated issues depend on O/N repo. This was based on inflation estimates and the moderate inflation resulted in increase of share prices and productivity. Though there is an intensive agenda the daily volume of equities in Istanbul stock exchange fluctuated around USD 400 million. This is due to the jitters over the political disputes that can effect the economy. As 2001 is a dismal year of performance the bench mark index of ISE eased down in January. This is due to the new letter intent coupled with the December inflation. This was posted lower than expected. The result of decreasing of USD in 2001 did not interfere in the business much. The harmonization bill, the expectation of US attack on Iraq, the banking recapitalization scheme, acceleration of the privatization process and other various laws passed by the parliament are indicators that made the business grow. This resulted in ISE 100 index inclined by 5.3 percent in terms of dollar. The USD 16 billion and the IMF credit facilities resulted in structural and infrastructure reforms and resulted in private bank recapitalization scheme being most significant of all the milestones. The rehabilitation of the state banking system and the segregation of the ailing private banks from the system reinforced the private banks and made robust step in banking reforms. The asset management companies were established and the hurdles intimidating the foreign and domestic investors were eliminated. The harmonization of privatization by EU has generated USD 1.5 billion in 2002.

To buy or not to buy...that is the Question Essay

To buy or not to buy...that is the Question - Essay Example According to market analysts, forces of abundance refer to a customer’s financial ability to purchase a particular product instead of another or not to purchase at all. Money is the most common determinant of consumer’s decision with regard to buying products (44). Additionally, the issue of taste receives a huge degree of consideration when consumers are purchasing certain products. In this spectrum, it is worthwhile noting that some consumers prefer certain products instead of others and this influences their choice of buying such products even if their prices are too high or the distance involved in acquiring them is long. Furthermore, consumers’ choice of buying products is influential due to lifestyles (58). Some consumers’ styles and standards of living determine the type of products and services to buy. With that respect, some consumers whose living standards are high go for high-class products whose prices are always expensive and consider particular brands of products as important compared to others. In summary, there are many factors ranging from minute to huge factors that influence consumers’ choice of buying certain products and services (71). However, as highlighted in this paper, the most common ones include needs, lifestyles, and financial ability of a