Tuesday, December 31, 2019
The Fall Of House Of Usher, By Edgar Allan Poe - 1603 Words
As I have shown in the previous paragraphs of Cole and Poe, they are very different people who have had contrary life experiences . Yet their works are still very similar. To further prove my case I shall use some of their works as examples. Edgar Allan Poe s ââ¬Å"The Fall of House of Usherâ⬠and Thomas Cole s ââ¬Å"Vesper Hymnâ⬠will be the first two works of art that are comparable. Poe s ââ¬Å"The Fall of House of Usherâ⬠possesses all of the Gothic elements like a haunted house, dreary landscape, unknown sickness, and multiple personalities. The creepiest part of this story is its vagueness. There is no way of telling where the house is exactly or when the story takes place. Poe uses an unethical approach in this story, he asks us to question the reasons both for Roderickââ¬â¢s decision to contact the narrator in this time of need and the bizarre tenacity of narratorââ¬â¢s response (sparknotes.com). While Poe uses standard Gothic tale building blocks, he contrasts this with sudden and unexpected distributions. The story begins without complete explanation of the narratorââ¬â¢s motives for arriving at the house of Usher, and this ambiguity sets the tone for a plot that continually blurs the real and the fantastic (sparknotes.com). Poe makes the house seem like a monstrous character. It prevents the other characters from moving and acting freely. Almost like the house is controlling the fate of the protagonist. Not only does the narrator get trapped inside the mansion, but we learn also thatShow MoreRelatedThe Fall Of The House Of Usher By Edgar Allan Poe1570 Words à |à 7 Pagesingenious Edgar Allan Poe. A prime example of Poeââ¬â¢s spectacular work with single effect would be in the classic short story ââ¬Å"The Fall of the House of Usherâ⬠which was published in 1839 and holds much critical acclaim. In the story, the narrator visits an old, mentally disintegrating friend and his dying sister in a house that invokes an xiety with mere proximity. While the whole tale is wrought with single effect, the most defining creepiness of the story was brought to life through Roderick Usher. ThroughRead MoreThe Fall Of The House Of Usher By Edgar Allan Poe Essay1333 Words à |à 6 PagesEdgar Allan Poe is known for his poetry and short stories especially his tales of mystery and morbidity he was one of the countries first practitioners of short stories such as the Fall in the House of Usher many of his poems and short stories is said to have been inspired by Poeââ¬â¢s real and tumultuous life, in ââ¬Å"The Fall of the House of Usherâ⬠Edgar Allan Poe uses sound, feeling and sight imagery to create and explore an atmosphere of horror and to convey to the reader the idea that fear coalescedRead MoreThe Fall of the House of Usher by Edgar Allan Poe1438 Words à |à 6 PagesThe Fall of the House of Usher by Edgar Allan Poe The mind is a complicated thing. Not many stories are able to portray this in such an interesting manner as in Edgar Allan Poes The Fall of the House of Usher. The haunting story of a man and his sister, living in the old family mansion. But as all should know, much symbolism can be found in most of Poes works. The Fall of the House of Usher is no exception. First of all, we have the symbolisme of Roderick Ushers mind and the House ofRead MoreThe Fall of the House of Usher by Edgar Allan Poe668 Words à |à 3 PagesThe Fall of the house of Usher Literary Analysis A ââ¬Å"Royal houseâ⬠refers to the Royal familyââ¬â¢s members. The house becomes a representation of the family as the reputation of the house relies on the familyââ¬â¢s actions and status. The Usher family was at one time a great family in the upper tier of society which is why they titled their family and home ââ¬Å"the house of Usher.â⬠Edgar Allan Poe uses this symbol to draw in the reader by giving the house of Usher human like characteristics similar to Lady MadelineRead MoreThe Fall Of The House Of Usher By Edgar Allan Poe1216 Words à |à 5 PagesEdgar Allan Poe is a famous short story writer who writes many short stories, novels, and poems in the 19th century. Although he is obviously a very prolific writer, he is most famous for his macabre literature. This literature of his is best known for its melancholy descriptions that establish a setting and mood that contribute to the overall tale. Poeââ¬â¢s goal through his literature is to evoke horror into the readerââ¬â¢s mind. In ââ¬Å"The Fall of The House of Usher,â⬠Poe presents the demise of a distinguishedRead MoreThe Fall of the House of Usher by Edgar Allan Poe946 Words à |à 4 PagesEdgar Allan Poe is known for the suspenseful and mysterious nature in his short stories, and to achieve this he uses repetitive symbolism. In the ââ¬Å"Fall of the House of Usherâ⬠, the narrator gets a letter from an old friend saying that he needs his help. When he arrives he starts to hear voices that eventually cause the house to fall and results in the death of usher and Madeline. Poes ââ¬Å"The fall of the House of Usherâ⬠portrays a melancholy setting and utilizes a motif of the supernatural, howeverRead MoreThe Fall Of The House Of Usher By Edgar Allan Poe896 Words à |à 4 PagesEdgar Allen Poe is well-known for his frightening and disturbing short stories. He portrays his characters in unforeseen circumstances that create an eerie atmosphere, and this then leads t o unsettling actions. In his famous short story, The Fall of the House of Usher, Edgar Allan Poe utilizes dark mood, dreary allegory, and mysterious symbolism to create the thrill and suspense. The mood of the characters set the intensity of fear and gloom, while the story of the Ushers follows psychologicalRead MoreThe Fall Of The House Of Usher By Edgar Allan Poe1159 Words à |à 5 Pagesââ¬Å"The Fall of the House of Usherâ⬠ââ¬Å"The Fall of the House of Usherâ⬠by Edgar Allan Poe is an ominous tale, told in retrospect, of a man who visited an old friend, Roderick Usher, who was dying of a mental illness. This visit was quite different then how the narrator believed it would be. The narrator explained the ââ¬Å"insufferable gloomâ⬠he felt when he saw the mansion, and this dreary feeling only grew stronger the longer he stayed (Poe 1265). The narrator endured the bleak time with his old friend whoseRead MoreThe Fall Of The House Of Usher By Edgar Allan Poe1104 Words à |à 5 PagesThe Fall of the House of Usher Edgar Allan Poe is best known for his unnerving and suspenseful writings, and ââ¬Å"The Fall of the House of Usherâ⬠is no exception. Just like Poeââ¬â¢s other clever writings, ââ¬Å"The Fall of the House of Usherâ⬠portrays a sense of fear and paranoia yet also a touch of curiosity with his extraordinary descriptions about the setting and characters, along with the tone. Poe does a magnificent job creating an eerie tone while describing the setting. Even in the first paragraph ofRead MoreThe Fall of the House of Usher, by Edgar Allan Poe785 Words à |à 4 Pagesis a relation which relates itself to its own self.â⬠I understand The Fall of the House of Usher in these terms; the story is a description of the sick self, the sick spirit, the mortally morbid human. The title provides a reasonable summary of the story: the subject is the House of Usher and what happens to the House is a fall. That would be simple enough, but matters are complicated by the fact that the phrase ââ¬Å"House of Usherâ⬠has more than one meaning; the phrase can mean, ââ¬Å"both the family and
Monday, December 23, 2019
Environmental Influences On Childhood Obesity - 1717 Words
Why is it Sociological Social? Obesity has become a large and dark reality in United States. For someone who does not have sociological imagination being overweight is the result of bad personal choices or genetic predisposition. (Crosnoe) Cultural beliefs and practices related to food and feeding vary among ethnic groups, and these differences may contribute to different patterns of obesity in children and youth, related to their ethnicity. As described in the epidemiological overview show higher than average obesity prevalence in non-Hispanic, black and Mexican American children compared to non-Hispanic white children at most ages. In boys excess obesity ages 2 through 11 compared to girls ages 6 through 19. (Kumanyika 61-70) Environmental influences on childhood obesity is a socio-cultural environment. Highlighted data section the aspects of socio-cultural environments of U.S. ethnic groups favor obesity development. Overweight may be viewed as a problem only when it is clearly linked to health problems. These types of attitudes about large body size may apply to any population where excess fat is only seen. The observation that childhood obesity is more prevalent in ethnic minority populations is likely to reflect differences in combination of factors. (Kumanyika 61-70) â⬠¦.Overweight and obesity are advancing rapidly in the developing world as wellâ⬠¦ [While] 80 percent of worldââ¬â¢s hungry children live in countries with food surpluses. (World Watch Institute) WhatShow MoreRelatedObesity : Obesity And Genetics1267 Words à |à 6 Pagesample statistics of obesity in the past decades has motivated researchers to conduct more studies to find out if obesity is genetic or if it is a learned behavior. Obesity has always existed in our population, but recent studies have taken an increment to make comparative data between obesity and genetics. Moreover, studies are trying to find strategies for the prevention of weight gain to help public health and avoid the rising of obesity. As consequences, childhood obesity has developed an epidemicRead MoreChildhood Obesity : Obesity And Obesity1505 Words à |à 7 PagesChildhood Obesity Introduction Childhood Obesity has become more critical public health issue worldwide. However, obesity ratio varies from country to country. In addition, up to a quarter of Australian children are suffering from childhood obesity and obese children are at higher risk to become obese adult. For this reason, childââ¬â¢s weight always matters because it can impact on their health in future. There may be many reasons which affect childhood obesity including sedentary life style, lack ofRead MoreFactors Contributing Factors That Causes Obesity Among Children Essay1369 Words à |à 6 PagesChildhood obesity is a major health issue that takes place when a child is beyond the average weight for his or her age and height (Mayo Clinic, 2014). According to Sameera and Amar childhood obesity is a major public health crisis nationally and internationally, which arises because of the differences in lifestyle consequences among different cultural people in New Zealand (2012). This abnormality can cause var ious health risks such as diabetes and heart disease (World Health Organisation, 2014)Read MoreChildhood Obesity. Childhood Obesity Is A Growing Problem1085 Words à |à 5 PagesChildhood Obesity Childhood obesity is a growing problem in the United States. Childhood obesity is defined as a child being at or above the 95th percentile for the childââ¬â¢s age and sex (Dietz, 1998). According to the Center of Disease Control ââ¬Å"Childhood obesity has more than doubled in children and quadrupled in adolescents in the past 30 years. The percentage of children aged 6ââ¬â11 years in the United States who were obese increased from 7% in 1980 to nearly 18% in 2012â⬠(CDC, 2017). There areRead MoreChildhood Obesity And Its Effects On Children And Adolescents1427 Words à |à 6 Pageswell as physical inactivity, results in an energy imbalance and can lead to a major social issue of childhood obesity. The World Health Organization defines childhood obesity as a ââ¬Ëserious medical condition consisting in excess body fat that affects children and adolescents.ââ¬â¢ To address this problem, assessing the factors that have been suggested as contributing to the developm ent of childhood obesity is vital. Some of these include genetic factors, declining levels of physical activity, increasedRead MoreFactors Contributing Factors That Causes Obesity Among Children Essay1364 Words à |à 6 PagesWhat are the causes of obesity among children in New Zealand? Introduction Childhood obesity is a serious medical condition that occurs when a child is well above the normal weight for his or her age and height (Mayo Clinic, 2014). According to Sameera and Amar childhood obesity is a major public health crisis nationally and internationally, which arises because of the differences in lifestyle consequences among different cultural people in New Zealand (2012). This abnormality can cause various healthRead MoreThe Socio Ecological Model Of Childhood Obesity Essay1660 Words à |à 7 Pagesare complicit in producing higher rates of obesity and its associated diseases among New Zealanders, particularly in children. Childhood obesity is widely regarded as a significant health concern in New Zealand (NZ), owing to its growing national prevalence, its links to long term ill-health, and high economic burden on the health system. A socio-ecological model can be used to demonstrate how environments, ranging from individual to societal, influence personal behaviours, everyday lifestyle choicesRead MoreChildhood Obesity Essay examples1472 Words à |à 6 PagesAmerica childhood obesity was rarely a topic of conversation. A survey done in the early 1970s showed that 6.1% of children between the ages 12 and 19 were overweight. Eight years later the same survey was done and 17.4% were considered overweight (Iannelli). ââ¬Å"Childhood obesity epidemic in America is now a confirmed fact since the number of overweight or obese children has more than tripled during the last 30 yearsâ⬠(Childhood Obesity Epidemic). ââ¬Å"Over the last 20 years, the prevalence of obesity in childrenRead MoreObesity : The Body Mass Index Essay1699 Words à |à 7 PagesIntroduction Obesity can be defined as an abnormal increase in the proportion of fat cells, mainly in the viscera and subcutaneous tissues of the body (Mosby, 2010). The official medical measure of obesity is the body mass index (BMI), an index of an individualââ¬â¢s weight relative to height. The World Health Organisation (WHO) defines obesity as having a BMI greater than or equal to 30 (World Health Organisation, 2015). New Zealand (NZ) ranks 3rd highest for obesity rates amongst OECD (OrganisationRead MoreChildhood Obesity : A Obesity1247 Words à |à 5 PagesChildhood Obesity: A Review to Prevent the Risk Factors of Childhood Obesity in Our Community. The rates of childhood obesity Worldwide are alarmingly high! Obesity is a global nutritional concern and leads to horrible consequences on our children and becomes a worldwide pandemic. Worldwide estimates of obesity are as high as 43 million, and rates continue to increase each year. In this study, people will find healthy tips to prevent childhood overweight or obesity to help children in our communities
Saturday, December 14, 2019
Case Analysis Global Payments Breach Free Essays
Table of Contents Executive Summary3 Company Background3 Security Breach3 Cost of Security Breach3 Closer Look at Control Issues4 Steps to mitigate data breach4 Conclusion6 References6 Executive Summary A data breach at a credit card payments processing firm Global Payments potentially impacted 1. 5 million credit and debit card numbers from major card brands Visa, MasterCard, Discover and American Express (money. cnn. We will write a custom essay sample on Case Analysis: Global Payments Breach or any similar topic only for you Order Now com) in April 2012. Company Background Founded in 1967, Global Payments (NYSE:GPN) is one of the largest electronic transaction processing company based out of Atlanta, GA and operations in several European and APAC regions. The company provides business-to-business card payment and processing solutions for major card issuers such as Visa, Master Card, Amex and Discover. The company also performs terminal management and electronic check conversion. Security Breach Exactly a year ago, in March 2012 the company was hit by a massive security breach of its credit card payment processing servers impacting more than 1. 5 million customers (nytimes. com). The company reported unauthorized access to its processing system resulting in data transfer of 1,500,000 card numbers. According to the company report, data stolen includes name, social security number and the business bank account designated for payment processing or deposit services. As a result of unauthorized access to the companyââ¬â¢s servers millions of customer confidential records got exported. Cost of Security Breach While this data breach is not the largest of the cases, Global Payments data breach turned out to be a $93. 9 million deal according to the companyââ¬â¢s Jan 8th 2013 quarterly report (bankinfosecurity. com). This is mainly spent in enhancing security and ensure compliance with Payment Card Industry Data Security standard. The company hired a qualified security assessor (QSA) that conducted an independent review of the PCI-DSS compliance of Global Payments systems and advised many remediation steps for its systems and processes. The company also paid fines related to non-compliance and has reached to an understanding with several card networks. The majority of the expenses, $60 million were originated out of professional fees while $35. 9 million was estimated to be fraud losses, fines and other charges imposed by credit and debit card networks. However the company received $2 million in insurance recoveries. There could be additional expenses of $25 to $35 million in reminder of 2013 due to investigation, remediation and PCI compliance. Closer Look at Control Issues While the company would like to conceal finer details of the investigation a closer look into this case clearly reveals a fraud triangle of pressure, rationalization and opportunity. It is highly likely that an insider played a major role in exposing security vulnerabilities of the companyââ¬â¢s information technology systems and lack of proper monitoring mechanisms. Lack of proper internal controls resulted in the insider making use of the opportunity to commit fraud. The case clearly indicates that either system monitoring mechanism was inadequate and could not prevent the data thief to get access to PCI data. It is not clear whether high level data encryption was implemented for personal data such as social security numbers and bank accounts. Steps to mitigate data breach A number of precautionary and data protection measures should be taken to ensure PCI compliance and prevent such a massive data theft (sans. rg). 1. Establish multiple levels of data security specifically for personal information such as customer account numbers, social security numbers, customer addresses, phone numbers etc. , This includes creating authorization algorithms and every data retrieval gets logged and reported. 2. The data should be encrypted by utilizing best of data encryption methodologies to protect both data at rest and in transit. Data at rest is the infor mation residing in database and file servers and even in personal computers. On the ther hand, data in transit refers to data moving across local and wide area networks. 3. Identifying all the sensitive data that needs encryption is the first step in protecting data based on the data classification policies. 4. Locate data at rest and data in motion and then apply techniques such as eradication i. e. removal of unnecessary data lying in file systems or personal PCs; obfuscation of data to ensure it is not in readily readable format and finally encrypt by employing industry standard data encryption techniques. 5. Follow PCI-DSS requirements for financial data . PIN blocks, CVV2 and CVC2 card verification data cannot be stored at any time. b. All sensitive information must be encrypted during transmission over networks that are main targets for hackers. c. Ensure that security related technology is resistant to tampering and do not disclose any security related documentation. d. Ensur e sound and practical policies around data generation, updates, deletion, storage and archival of cryptographic keys e. Ensure that data exchange is conducted over a trusted path that follows high controls and confirms to authenticity of content. Conclusion The numbers of cyber threats are increasing at an alarming level and a small overlook on companyââ¬â¢s behalf is enough for hackers to steal confidential data and put consumers at risk. In todayââ¬â¢s high tech world of information technology customers information is at high risk of breach and any company both private or public involved in dealing with financial data has to ensure highest level of regulatory compliance to protect consumers interest, maintain their trust and finally run as an ongoing concern References 1. Jessica Silver-Greenburg, Nelson D Schwartz (March 30 2012). ââ¬Å"Master Card and Visa Investigate Data Breachâ⬠New York Times. Retrieved 2013-03-17. 2. Information Security Group (January 10 2013). ââ¬Å"Global Payments Breach Tab: $94 millionâ⬠. www. bankofsecurity. com. Retrieved 2013-03-17. 3. Julianne Pepitone (April 3 2012). ââ¬Å"1. 5 million Card numbers at risk from hackâ⬠. www. money. cnn. com. Retrieved 2013-03-17 4. Dave Shackleford (November 2007). ââ¬Å"Regulations and Standards: Where Encryption Appliesâ⬠. www. sans. org/reading/analyst_program/encryption_Nov07. pdf How to cite Case Analysis: Global Payments Breach, Papers
Friday, December 6, 2019
African Women Opposing Gender Inequality Essay Example For Students
African Women Opposing Gender Inequality Essay In the novel ââ¬Å"So Long A Letterâ⬠by Mariama Ba, is written in the form of a few short letters and pieced together in the form of a novel. It talks about a woman that experiences gender inequality, because of her culture, and how she struggles to escape the bonds that are tying her to be a victim of this. The novel begins with Ramatoulaye, a Senegalese woman who shares her troubles with her childhood best friend Aissatou through letters. First, she reminds her friend Aissatou of how long theyââ¬â¢ve met. Then she recounts what has happened, and tells the tragic news that her husband (Modou) had died, and how she has to manage everything. Shortly after her husbandââ¬â¢s death, she faces Tamsir (Modouââ¬â¢s brother) who proposes that she be his 4th wife. She also has to deal with the co-wife who was formerly her daughterââ¬â¢s friend. She has been forced to deal with Binetou (co-wife) for the last 5 years and later on, in the novel, she also has to confront Aissat ou her daughter namesake of her best friend, as she finds out that her daughterââ¬â¢s pregnant. Through the novel, Ramatoulaye represents the African women, and what they should do to break free of the gender inequality thatââ¬â¢s affecting them. In their household, only the men make the decisions, and the women are never asked for their opinions. For example, when Ramatoulaye is mourning her husbandââ¬â¢s death, Tamsir just approaches her without even giving so much as a hind that he wants her to be his wife. For the first time, she promises herself that ââ¬Å"This time shall speak out.â⬠(Ba 60) For a long time, she hasnââ¬â¢t opposed anything or anyone, so this time she chooses to not hold back her emotions any longer. Her voice must be heard because ââ¬Å" voice has known thirty years of silence, thirty years of harassment. It bursts out, violent, sometimes sarcastic, sometimes contemptuous.â⬠(Ba 60) After turning down Tamsirââ¬â¢s offer of being his wife, she tries to smooth things over between her former lover, Daouda Dieng who is a politician an d is married with children. If Ramatoulaye had not experienced polygamy, then she might consider Daouda, but since she had, she didnââ¬â¢t want to tear another family apart. When Daouda confesses his feelings for her, which hasnââ¬â¢t changed in the past years, Ramatoulaye confesses that even though she too likes him, she canââ¬â¢t start a relationship with someone whoââ¬â¢s ââ¬Å"wife and children further complicates the situation.â⬠(Ba 71) When Ramatoulaye learns that she has just become another part of the system of polygamy, she ââ¬Å"forces to check inner agitationâ⬠(Ba 39) and to appear to not be stressed out by the news. In the above example of polygamy, it is shown that onlyh the men can have more than one wife, whereas if the women have two husbands, the society will consider it as an abnormal thing. Also, in the novel, education is another example of gender inequality. If the females go to school and study, the ââ¬Å"school turns our girls into devils who lure our men away from the right pathâ⬠(Ba 17) they will be seen through societyââ¬â¢s eyes as an outcast. For Aissatou, she couldnââ¬â¢t be a goldsmith because ââ¬Å"Each profession has its code, known only the initiated and transmitted from father to son!â⬠(Ba 18) Almost all of the females that want a job, canââ¬â¢t have one, because their job will be affected bythe simple reason, that they are females. In conclusion, throughout the novel, there are many examples of gender inequality ,and sometimes Senegal isnââ¬â¢t the only place that experiences gender inequality. Throughout the world gender inequality is still happening, and it should be stopped.
Friday, November 29, 2019
6 Ways Nurses Can Stay Healthy During Flu Season
6 Ways Nurses Can Stay Healthy During Flu Season Chances are, the hospital or facility you work at requires you to get your flu shot. But sometimes even that is not enough. Here are 6 more preventative measures you can take to protect yourself from getting sick this season. 1. Treat Your Body Like a TempleJunk food is not your friend. Red Bull and french fries and Snickers bars might get you through a shift, but they wonââ¬â¢t get you through flu season. Try and eat healthier (and make sure to include fruits and vegetables!) so your body gets the vitamins and minerals it needs to fight things off. And stay hydrated!2. Get Some SleepYouââ¬â¢re working overtime and the time off you do have is full of holiday activity. Make sure to rest as much and as well as you can so you donââ¬â¢t have to lose work time or play time.3. Be Travel SmartStay hydrated and boost your vitamin intake. Carry Airborne or Zicam or Emergen-C and a packet of sanitizing wipes on planes and trains and buses so you donââ¬â¢t pick up any germs.4. Be Vi gilantStart to get a sniffle or a sneeze? Feel a little achy? Stop what youââ¬â¢re doing and take care of yourself. Take your vitamins, get some rest, drink lots of fluids. Use hand sanitizer often. Get a humidifier. If youââ¬â¢re proactive enough, you can head the flu off at the start.5. Get CleanClean your kitchen and bathroom regularly. But donââ¬â¢t forget to also sanatize the things you carry with you, like your cell phone or your keys. A few disinfectant wipes will do a lot of good in fending off the army of germs. And if you do get sick, remember to change your toothbrush.6. Be an EnforcerYouââ¬â¢re a nurse, so youââ¬â¢re a hand washing and sanitizing pro. But the rest of your family probably isnââ¬â¢t. Get on your soapbox and make sure everyone you love is following the same guidelines. No sick people preparing food! Use tissues to sneeze! Wash hands after coughing! Protect your loved ones and protect yourself.
Monday, November 25, 2019
Holiday Truth essays
Holiday Truth essays Halloween should this holiday be celebrated or reconsidered? Halloween is a time to go out and have fun, collect and eat candy, and dress up to deliver or receive a great scare right? Wrong, this idea is what most Americans believe Halloween is all about. In reality the truth behind the reasons of why Halloween is celebrated are hardly ever discussed. According to William Schnoebeian, author of Lucifer Dethroned he states that when people take part in celebrating Halloween they are opening the door to Satanism. On the day of Halloween many satanic rituals and sacrifices are made to Satan. Many of these sacrifices include children and animals of all sizes. Americans are blinded by the great costume parties and the sugary mouths and they are not aware of what they are really participating in when they celebrate this horrific holiday. Although not popular until the 1800s, Halloween dates back to 200 B.C. A tribe called the Celts was the first to commence the original Halloween customs. The Celts were described as terrifying people who hung human heads. Halloween was called Samhain and was the holiday celebrated above all. Samhain was the Celtic lord of death, Halloween was the festival used to celebrate him. The celebration represented the beginning of the cold season when days grew darker sooner. The Celtics believed that this season represented death. They also believed that the souls of the dead returned to their homes on earth on October 31. The Druids, priests, and teachers ordered all the people to create bonfires on the evening of this celebration. Druids are the priests of the Celtic religion. The word bonfire also dates back to these days when the word originally was bone-fire. This word referred to the large bonfires that contained burned animals, crops, and human beings. The reason they crea ted these bonfires was to help the sun survive the winter, to frighten off evil spirits, a...
Thursday, November 21, 2019
Memsitors, the new kid on the block Essay Example | Topics and Well Written Essays - 1000 words
Memsitors, the new kid on the block - Essay Example For example, when Bell telephone laboratories announced to the world the invention of the transistor in 1948, the press of the day announced that more than hundred could be held in the palm of the hand (Hayes, 2011). Today with the current technologies more than a 100 billion of these can be held at the palm of the hand. What is more interesting was that the transistors even cost less than dollar per a billion today. They are therefore the most abundant and cheapest electronic gadgets in the human history. Currently the trinity fundamental components in electronics that consist of the resistor, the transistor and the capacitor are well known in the electronic field. In 1971 an Engineer in the university of California Berkeley, predicted that there should be a fourth element; a memory resistor, or memristor though no one seemed aware of it or how to build one (Williams, 2008). 37 years later in 2008 the field of electronics got small enough to reveal the identity and the nature of the fourth element to complete the above set as was predicted by the engineer. Hewlett Packard researchers revealed in the journal nature of the fourth component; the memristor, which is the new kid on the block in the electronics field. The story behind memristor dates back to about 40 years ago from the insight by IEEE Fellow and nonlinear circuit theory pioneer Leon Chua (Adee, 2008). Chua when examining the relationship between the flux resistors and charge in resistors, capacitors and inductors in a 1971 paper, he postulated the existence of a fourth element called the memory resistor. According to Chua such a device once discovered would provide similar relationship and proportions between the magnetic flux and charge the same that a resistor gives between voltage and current. Therefore, Chua argued that the memory resistor would act like a resistor whose value could be able to vary according to the current passing through it and that could remember the value long after the curre nt disappears (Adee, 2008). This was to be realized more than 30 years later, when Stanley Williams a HP senior fellow and his group were critically analyzing and working on molecular electronics when they noticed strange behavior in their devices. It was after critically examining the theoretical works and especially the work of Chua that Williams noticed that the strange phenomena that they observed were actually as a result of memristors. One important aspect of memristors is that it proves right the suspicion that many researchers had for a long time that detailed that artificial intelligence was not possible with the traditional hardware due to its rigid use of the Boolean logic and the vast separation that exist between the memory and processing (Versace & Chandler, 2010). It was in 2008 when the HP researchers built the new class of electronic device; the memristor. Before this invention, it would have been impossible to create a new circuit with the memory structure of a bra in, the instantaneous internal communications and the low power requirements. Form the invention of the memristor, it was evident that the three components could be coaxed and trained to behave just a like a normal brain with more emphasis with form that was termed to be a major fusion in this set up. Generally, memristors are small, cheap and most efficient to fill this gap in the electronics industry. They might be explained to have characteristics that resemble those of synapses in normal humans,
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