Network Interface Units Essay Example for Free

Network Interface Units Essay Wireless broadband Internet has gained more prominence among home users and small-scale businesses especially because in other setups say in legal and medical field, confidentiality is paramount and is a legal obligation. Any breach of this confidentiality is an offense. In addition, it provides inexpensive and relative speedy wireless Internet over a wider coverage area. Additionally, users expect more freedom and flexibility in using their portable computers, say at work, in the garden, and laptops hence wireless connection becomes more popular. This technology has provided users with easy access to Internet and at the same time convenience as wireless broadband technology does not use telephone cables However at the same time, it has rendered peoples personal information vulnerable to access by other users. That is, almost anyone with a good laptop with wireless connection can interfere with other networks within range especially those that are not protected form unauthorized users. This paper presents a technical report on the use of wireless Internet in domestic broadband Internet solutions. This investigation will address key areas such as how the technology works, security issues involved in the wireless Ethernet installation, implications of using wireless internet within the web based information system, configuration and setup issues, ways in which wireless internets can be made more secure and future solutions to the security concerns of wireless Ethernet internet. Introduction. The wireless networking technology operates in more or less the same way as the conventional LAN only without the physical wires. The personal computer has to have a wireless network card which is sort of an Ethernet adapter. This makes the computer establish a connection with the service provider network. Depending on the model, an access port can support up to sixteen machines. The wireless broadband technology uses radio waves that transmit and receive data on air unlike the traditional cable and ADSL broadband that use telephone lines. (Shay, 1998) Basically, all one needs is a Customer Premise Equipment (CPE) in the building where one wants to get connected. In this area there has to be radio signals. In cases where there aren’t any in sight then multiple hubs may be installed to act as logical diverters of the radio signals. A CPE comprises of NIU (Network Interface Units) which provide circuit emulation and internet data services. The Ethernet data services are simply mounted on top of the building where the Internet is being installed i. e. the transceiver and the antennae unit. The advantage of wireless broadband technology is that they are fast and more reliable than the others with up to 256kbps speeds (Tanenbaum, 2002) Wireless broadband networks transmit data to towers hosted by the service provider, which then the NUI and the Ethernet data services then pick up and deliver to a users personal computer or laptop. Wireless connections use DHCP (digital host configuration protocol) which assigns the IP address without the intervention of the configuration from the network administrator or the intervention of the user. The wireless broadband technology also uses modems just like the ADSL and traditional cables only that in wireless broadband connections the modem has an inbuilt antennae which links your computer to the nearest service provider tower (Spainhour Eckstein, 2003)

Chinua Achebe and the Language of the Colonizer Essay -- Essays Papers

Chinua Achebe and the Language of the Colonizer A powerful instrument of control used by the colonizing powers is the instrument of language. Language forms a huge part of the culture of a people - it is through their language that they express their folk tales, myths, proverbs, history. For this reason, the imperial powers invariably attempted to stamp out native languages and replace them with their own. As Ashcroft, Griffiths and Tiffin point out, there are two possible responses to this control - rejection or subversion. (The Post-Colonial Studies Reader, London: Routledge, 1995. 284) While Ngugi Wa Thiong’o is famous for advocating outright rejection of the colonialist language, believing that this rejection is central to the anti-imperialist struggle, Chinua Achebe has chosen the idea of subversion rather than rejection. According to Ashcroft, Griffiths and Tiffin, his writing â€Å"displays a process by which the language is made to bear the weight and texture of a different experience. In doing so it becomes anothe r language.† In The African Trilogy, Achebe uses the language of the colonizer to convey the Igbo experience of that colonization. The idioms, proverbs and imagery of these books all invoke his Eastern Nigerian culture, forcing the reader to accept on Achebe’s (linguistic) terms, the story he has to tell. Any reader of The African Trilogy comes away with at least a limited knowledge of Igbo words and phrases. Some words such as obi, chi, osu, and egwugwu be... Chinua Achebe and the Language of the Colonizer Essay -- Essays Papers Chinua Achebe and the Language of the Colonizer A powerful instrument of control used by the colonizing powers is the instrument of language. Language forms a huge part of the culture of a people - it is through their language that they express their folk tales, myths, proverbs, history. For this reason, the imperial powers invariably attempted to stamp out native languages and replace them with their own. As Ashcroft, Griffiths and Tiffin point out, there are two possible responses to this control - rejection or subversion. (The Post-Colonial Studies Reader, London: Routledge, 1995. 284) While Ngugi Wa Thiong’o is famous for advocating outright rejection of the colonialist language, believing that this rejection is central to the anti-imperialist struggle, Chinua Achebe has chosen the idea of subversion rather than rejection. According to Ashcroft, Griffiths and Tiffin, his writing â€Å"displays a process by which the language is made to bear the weight and texture of a different experience. In doing so it becomes anothe r language.† In The African Trilogy, Achebe uses the language of the colonizer to convey the Igbo experience of that colonization. The idioms, proverbs and imagery of these books all invoke his Eastern Nigerian culture, forcing the reader to accept on Achebe’s (linguistic) terms, the story he has to tell. Any reader of The African Trilogy comes away with at least a limited knowledge of Igbo words and phrases. Some words such as obi, chi, osu, and egwugwu be...

Can Korean Red Ginseng Increase the Life Span of Cancer Patients?

According to the newspaper article, it claims that Korean red ginseng is capable of increasing the life spans of cancer patients. However, it seems that no concrete evidence is present as yet to substantiate this claim since â€Å"nobody knows the results†. The article mentioned that Korean red ginseng has played a vital role in extending French politician, Francois Mitterrand’s life from three months to more than half a year. Professor Kim Si-kwan at Konkuk University further supports this statement as he mentioned, â€Å"red Korean ginseng reduces the amount of reactive oxygen species (ROS) in the body†.Similarly, Professor Park Jeong-hill at Seoul National University also supported the statement as he said, â€Å"it is crucial to deter ROS to prevent or deal with cancer†. According to my online research, ROS are chemically reactive molecules that contain oxygen and they are able to cause harm to cell structures. Particularly, oxidative DNA damage can ar ise from mitochondria mutation and therefore, leading to cancer (Frei, 1997). Besides that, Korean Ginseng Corporation has stated that Korean red ginseng contains anti-carcinogenic that aids in limiting or slowing down the spread of cancer cell growth.Hence, I feel that it is a sound claim that Korean red ginseng is able to deter cancer cell growth since Korean Ginseng Corporation has stated its stand to support the article’s claim in their company website. Korean Ginseng Corporation has over a hundred year of legacy worldwide and its ginseng is available in the international markets as well, hence it is very likely that the statement from its company website is trustworthy and accurate. Therefore, this makes it a reliable piece of evidence to a certain extent and I can trust its contents.Moreover, Korean Ginseng Corporation has also carried out several experiments to substantiate the fact that Korean red ginseng is able to bring about longer life spans. For instance, a contr ol group of men and women were made to consume Korean red ginseng for a given period of time and compared to those who did not consume it. Results showed that those who consumed the Korean red ginseng lived a longer life than those who did not (Please refer to Appendix 1). As a result, I feel that this piece of evidence is sufficient to support the article’s claim and I can accept its stand.Adding on, the consumption of Korean red ginseng is able to help decrease incidence of cancer according to Korean Ginseng Corporation (Please refer to Appendix 2). Thus, I trust the article’s claim to an extent. However, I feel that the evidence from the article is unreliable to a certain extent. From the article, it is said that Mitterrand’s life span had increased to more than twice because he consumed Korean red ginseng. A possible reasoning that he lived longer than expected could be due to the inaccurate prediction from his doctor, rather than the effects of Korean red g inseng alone.From my online research, it is common that doctors are â€Å"poor at predicting life span, even when they're dealing with the terminally ill† patients (Schumann, 2010). Thus, I feel that it is not accurate evidence to support the article’s claim and I am unable to accept it. Furthermore, the article states â€Å"one of the most bought items by visiting Chinese tourists to Korea is red ginseng†. This statement is vague and I feel that it does not imply that the consumers bought the Korean red ginseng out of pure belief that it can prevent cancer, or rather to increase their life span.There is a possibility that the consumers bought the Korean red ginseng because of the effects of â€Å"word of mouth†, which means that they buy the ginseng simply because everybody else had bought it. It is similar to a chain effect. As such, I feel that this evidence from the article is insufficient and I am unable to accept that it can support the article†™s claim. Moreover, the extension of life span of cancer patients can be attributed to many other external factors rather than just the consumption of Korean red ginseng alone.For instance, studies have shown that by maintaining an optimistic attitude can help lengthen life span too (Wells, 2012). A Yale University researchers statement further supports this statement that: Positive self-perceptions can prolong life expectancy (Lovette, 2012). Hence, this shows that the claim is unreliable to a certain extent since it failed to recognize other factors that contribute to the increase of life span. In conclusion, I agree with the claim made by the article after weighing both sides of it. It is no doubt that Korean red ginseng is able to bring about good health if consumed long term.However, I feel that the use of Korean red ginseng to overcome cancer cannot be regarded as a single remedy on its own. It must be coupled with other external factors such as healthy lifestyle, optimistic environment and attitude in order to maximize the positive effects. According to Korean Ginseng Corporation, long-term consumption of it can help fight insomnia, anti-ageing, increase concentration, stamina, improve memory function and many more. Frei. B. (1997). Reactive Oxygen Species and Antioxidant Vitamins. Taken from http://lpi. oregonstate. edu/f-w97/reactive. html Korean Ginseng Corporation.Taken from http://www. kgcus. com/Studies. html Lovett. S. (2012). 10 Practical steps to a more optimistic attitude- in just 30 days Taken from http://australianriverrestorationcentre. com. au/2012/05/ Schumann. J. H. (2010). The Worst Fortune Tellers. Why doctors are so bad at predicting how long their patients will live. Taken from http://www. slate. com/articles/health_and_science/medical_examiner/2010/08/the_worst_fortune_tellers. html Wells. J. (2012). Optimistic People Live Longer Taken from http://www. familyhealthguide. co. uk/10-tips-for-a-longer-happier-life. html

The Value Of A College Degree - 1862 Words

The Value of a College Degree Given the huge rise in college tuition, a commonly asked question by college students is whether a college degree is really worth the cost. Most will graduate with debt from loans and ponder if a degree will actually make a significant amount of difference in future earnings versus those with a high school diploma. There are many considerations in acquiring a college education: what to major in, what colleges offer that major, can I afford it, will loans or scholarships be available, will I have to relocate, and, for some, will being away from home be too stressful. A college degree isn t just a piece of paper that will be handed to the graduates. It requires enormous hard work and sacrifice, but once earned, the student will come to realize it will be the most expensive piece of paper he or she will ever own. Despite the rising cost of a college degree, according to an article written by Kyla Calvert on PBS Newshour, 39.4% of Americans in 2012 between the ages 25 and 64 had at least a two-year degree. That was an increase in 2011 from 38.7%, the highest gain since 2008(Calvert para. 2). It is a general consensus among college graduates that regardless of the price tag and huge debt they incur, a degree is worthwhile and beneficial to a successful future. Attending a college or university for many meant overcoming numerous obstacles such as: securing the finances needed, uprooting their family and finding adequate/safe housing. ManyShow MoreRelatedThe Value Of A College Degree886 Words   |  4 Pagesand money of attending college. A reason for obtaining a higher education is that a college degree can possibly earn a much higher salary than the majority of the people who have a high school diploma. College can be expensive and time consuming for the most of the people that do not have enough money and spare time to go to college. Stephen Rose, a research professor at the Georgetown University, wrote an article on â€Å"The Value of a College Degree† to explain if a college degree can be valuable to peopleRead MoreThe Value of a College Degree1034 Words   |  5 Pagesadvanced degrees, race or gender, selection of institution, and parental resources. The general hypothesis of this study is â€Å"Is a College Degree Still the Great Equalizer?† This issue was the source of study by Florencia Torche at New York University. Using different cohort groups and conducting various survey methods, this study was able measure the effects of certain college degrees (i.e. bachelors vs. advanced degrees, field of study, etc.) as they relate to various aspects of intergenerational mobilityRead MoreCollege Value Goes Deeper Than The Degree Essay1042 Words   |  5 PagesCollege’s Value In the essay â€Å"College Value Goes Deeper Than the Degree† author Eric Hoover claims a college education is important to one s well-being so they can get a job and be productive in other parts of life. Promoters of higher education have long emphasized how beneficial college’s value and its purpose. Many believe the notion that colleges teach students are life skills to apply anywhere, they also work hard to earn a degree and learn specific marketable skills which they can use toRead MoreThe Great Ghost of the River Valley Essay examples1027 Words   |  5 Pagespaying for a degree†, a 2010 article published in The Washington Post discussed what many consider to be the decreasing value of a college education in relation to income. Richard Vedder, a Professor of Economics at Ohio State University, argues that for many an a college education is not worth the investment. Along with anecdotal evidence, Vedder makes use of Bureau of Labor Statistics to make his p oint. The statistics fail to show the full picture illuminated in â€Å"Is a College Degree Still the GreatRead MoreThe Value Of Higher Education996 Words   |  4 PagesThe value of higher education is a heated argument among professionals, students and writers. Primary issues in the debate vary and include opportunity for employment, how the education system must improve, and the value of a college degree. Writers Emily Hanford, Mike Rose, and Thomas Tierney all take the approach that college is necessary for a satisfying lifestyle. They argue that higher education provides valuable life skills. Gary Jason, Karen Lawrence, and The Economist, on the other hand,Read MoreValue of a College Education1226 Words   |  5 PagesEnglish 102-39 Anne Wilbourne April 16, 2013 Value of a College Education Education has come along way through out the centuries, unlike in the past; education is the key to opening the door to endless opportunities. College can provide a sense of security and desire towards a stable career. As easy as it sounds to obtain this life, the market gets more competitive each day, allowing employers to raise their standards. When investing into a degree one should keep an open-mind, there are many aspectsRead More value of a college education Essay example1298 Words   |  6 Pages Value Of A College Education According to Lundberg (2003), â€Å"adult students are one of the most rapidly growing segments of today’s college student population, making up approximately 40% of all college students† (665). Having a college education is an important tool that contributes to several aspects of a person’s life. The areas that are impacted the most would be the professional and personal areas. It is important to learn the value of a college education in order to take advantage of whatRead MoreMaking A Decision For A Higher Education Essay1729 Words   |  7 Pagesfinancial outlay once a decision is made.   I made a decision to attend Ashford University in January of 2014.   I am pursuing a BA in Operational Management and Analysis with a set graduation date of January 2018.   This paper is a financial report on my college education and projected future employment utilizing an ROI calculation. The reason I select to pursue a BA in Operational Management and Analysis is the personal gain of financial status.   Society has a growing need for business educated individualRead MoreAnalysis Of David Horseys s Todays Economic Indicator 976 Words   |  4 Pagesat Fatso burger recognizes that the customer she is about to serve is an old friend from college. As the girls engage in some conversation you find out that the last time they met was in high school. You also find out that the customer just got her degree so we can assume that they last saw each other 4 years ago. While the worker complains about her â€Å"loser job† and boasts about the customers new â€Å"college degree† she asks if she can give the customer free fries with her burger. Shockingly, in the lastRead MoreData Analysis : The Median Age Of The Respondents1556 Words   |  7 PagesThe mode for this variable is also 1. The variance of respondent gender is .19. The standard deviation for this va riable came out as .44. The variance of .19 for this variable indicates that the values and data points tend to be very close to the mean. The standard deviation of .44 also illustrates the values and data points tend to be close to each other and not spread out. This makes sense because a majority of the respondents were male. The next variable of respondent classification had a mean of