Friday, January 24, 2020

Cyberculture and the Future of Print :: Technology Email Computers Papers

I can remember, as a child, looking forward to the mail being delivered. The eagerness I felt as I waited for my mother to sift through it and the joy I felt when, on those rare occasions, I received a letter. It was not the actual words on the page that held the true excitement but rather I was important enough to receive that page of words that came wrapped in an envelope with my name on it! Now, many years later, I watch my ten-year-old daughter eagerly check her e-mail with the same enthusiasm, to see if she has received a special â€Å"letter.† The ordinary mail holds no excitement for her any longer, unless of course it is birthday mail, and writing a letter has lost its flare as well. Instead of asking me to buy her pretty stationery to write upon she insists I teach her how to change the text and background colors for her e-mails. And instead of exchanging home addresses at summer camp she comes home with lists of e-mail addresses. Sven Birkerts informs us, in his essay entitled â€Å"Into the Electronic Millennium,† that a â€Å"shift is happening throughout our culture, away from the patterns and habits of the printed page and toward a new world distinguished by its reliance on electronic communication† (63). Although this technology is relatively new, it has already changed the way we think about writing and has enhanced our communication abilities. Electronic mail, known simply as e-mail, was started in its earliest form around the 1960’s. It was not until the early 1990’s however, that companies such as America Online and Delphi connected their systems to the Internet, which began the large-scale adoption of e-mail as a global standard (Crocker). According to Dave Crocker, an Internet researcher, â€Å"Email is the most widely used Internet application [and] for some people, it is their most frequent form of communication† (Crocker). In our society today it is almost expected that people are connected to the Internet and use e-mail on a regular basis and in fact is often a requirement in many areas of our lives. For myself, as a college student, this is not only a requirement for my English class but is also how many of my professors contact me with pertinent information.

Thursday, January 16, 2020

Acetone Research Paper

Acetone is an extremely popular solvent that is used in rubber, resin, plastics, lacquers, varnishes, and rubber cements. It is also used in the creation of fats, oils, and waxes where is a primary component. Acetone has many uses in modern technology including those that relate to the medical field and various domestic uses. It is a very important organic compound found in everyday life, but it is also a toxin and can be an extremely dangerous environmental pollutant.Acetone has many valuable uses in modern life and many American companies use Acetone as one of their key components to many household items. There are many ways that Acetone is used everyday. One of the most common purposes of Acetone and one of its most well known, is the use of Acetone as a primary ingredient in nail polish remover. Acetone is also commonly found in the use of artist and craft makers. Similar to nail polish remover, Acetone can be used in other artistic agents. A common use of Acetone is for the remo val of residues off metals, glass, and porcelain.It also commonly used as a remover of superglue. Acetone is also used greatly by make-up artists in order for them to easily remove skin glues and adhesives from fake moustaches and wig materials. There have been many claims that Acetone is dangerous to the humans due to concentrated exposure from these very sources, which has been proven true. Concentrated exposure has been proven on numerous occasions to have an adverse affect upon humans. There are many negative health effects from exposure to Acetone, and each one differs from different types of exposure.According to the National Pesticide Information, there four ways exposure to Acetone can occur. The first is through inhalation, which can cause the symptoms of confusion, coughing, dizziness, headaches, sore throat, and unconsciousness. The second form of exposure is through direct contact with the skin. This can cause dry skin and rashes. The third way is exposure to the eyes, w hich can cause redness, irritation, pain, blurred vision, and possible cornea damage. The fourth and final way of exposure is from ingestion.Ingestion can cause the same symptoms as inhalation as well as the possibility of nausea and vomiting. Clearly, there are many health risks to the exposure of Acetone. Along with these mentioned symptoms, there have also been studies that have shown possible dangerous and long-term health risks to concentrated exposure. These studies have shown that concentrated exposure has lead to fainting and long-term effects have shown to be kidney, liver, and nerve damages. There have also been studies that support that birth defects and male reproductive problems were also health concerns due to long-term exposure.While there appear to many health risks due to exposure of Acetone, Acetone itself is actually considered a relatively safe compound if used properly. According to The National Health and Medical Research Council, Acetone has been rates General ly Recognized as Safe. Many manufacturing companies see Acetone as safe is exposure is minuscule and to the minimum. Because of this, Acetone can be found in beverages, pastries, desserts, processed and unprocessed foods, and is also found in a variety cosmetic and beauty products.While Acetone is considered to be only slightly hazardous to many manufacturing companies, it is important to recognize what Acetone truly is. Allow Acetone exhibits relatively low dangerous properties, it can deadly when properly exposed. Acetone is still considered a toxic chemical and can cause devastating destruction if exposed as an environmental pollutant. While Acetone does not pose much threat to humans in moderate doses, just slight exposure to the environment can completely upset an ecosystem. When exposed to the environment, Acetone is typically found polluting groundwater areas.This is due to Acetone’s high water solubility in water. In water, Acetone can cause great health defects to wi ldlife. Because common groundwater would be the home and drinking source of many organisms, Acetone pollution can quickly cause health problems and sicknesses in a surrounding ecosystem. The most common wildlife affected by Acetone are those that are water based. Studies have shown that fish and amphibians exposed to high levels of Acetone have numerous internal health defects, which include deformation to the reproductive organs.Acetone has also been shown to cause a risk of oxygen depletion in these aquatic areas. Acetone is also known to evaporate relatively quickly, which allows it to dissipate and spread into the atmosphere even when properly disposed of. Acetone is one of the most used solvents in the world and is found in numerous consumer products. From an economic standpoint, Acetone is found to be a relatively safe chemical. However studies have shown that exposure to Acetone can lead to adverse effects in humans. Acetone has also been shown to be an extremely deadly envir onmental pollutant, which can destroy ecosystems.

Wednesday, January 8, 2020

The Black Scholes Option Pricing Theory - 2335 Words

Client Specification My uncle in law is Portuguese who has been living in Macao for more than 20 years. Recently he plans to go back to Portugal after his retirement. Portugal has been in deep recession for 5 years and is the third European country to need a bail out. After noticing the default crisis in Greece and Argentina, he is worried about Portugal will default very soon under the impact of European sovereign credit crisis. Therefore I want to use my knowledge gained in this year to solve his puzzle. Regarding that my uncle in law does not have strong econometric knowledge, simple method with detailed steps and theory is preferred. This report aims to use the basic Merton Model with brief described procedure to compute sovereign†¦show more content†¦In order to calculate the sovereign probability of default, Gray et al (2007) suggests a sovereign capital structure which simply use the information from the sovereign balance sheet and apply the Merton Model for the estimation of sovereign asset and volatility. It has been proved by Sy-Hoa Ho (2014) with the evidence from Argentina and initially mentioned in Van et al (2005) with the Netherlands case. In Figure 1, the 5-YR CDS shows high bp starting from late-2009 to late-2012 and a gradually decreasing trend starting from the late-2013. In Figure 2, it is observed that there is steady and significant increase in the percentage debt of total GDP in Portugal since 2009 compared with others. Besides, there is a slowdown of the increasing trend in the last two years. Specification Sovereign Asset Sovereign assets is a state owned asset and is equal to the sum of the sovereign equity and sovereign debt at any time. V_t=S_t+B_t (1) According to Gray et al (2007, Page 10), it states that â€Å"sovereign assets includes the foreign currency reserves (R_MA), public asset (A_Other) and net fiscal asset (A_G) which is the present value of taxes and revenues â€Å"and is expressed in the following equation: A_S=R_MA+A_G+A_Other=M_BM+(B Ì…_SLC-P_SLC )+(B Ì…_SFX-P_SFX )+ÃŽ ±P_F where M_BM-monetary base (B Ì…_SLC-P_SLC ) is the risky debt of local (domestic) currency (B Ì…_SFX-P_SFX ) is the risky debt of foreign