Wednesday, December 18, 2019

The Scaffold in Nathaniel Hawthrone´s The Scarlet Letter

The symbol of the scaffold evolves in The Scarlet Letter by Nathaniel Hawthorne. In Nathaniel Hawthorne’s novel The Scarlet letter is build around the symbolic scaffold. The main characters transform the scaffold from the exposition to resolution. Next the traits of the scaffold itself deteriorate throughout the novel. Finally, the scaffold is applied symbolically throughout Hawthorne’s novel. The scaffold transforms throughout the book because they are there for different reasons. In the beginning Hester Prynne is there to be punished for her sin. Her sin was that she commits adultery and cheats on her husband. She cheats on Chillingworth with Dimmesdale. She ends up getting pregnant and she has a baby girl and she names her Pearl. Because she is beautiful and because she costs a great price. She must stand on the scaffold in front of the town to reveal her sin. Its to humiliate her for what she has done. The second scene is when Hester, Pearl and Dimmesdale are all standing together and being together. It’s the first time that Dimmesdale has claimed them in public. Before this Pearl felt like he wouldn’t claim and that he was ashamed to have anything to do with her. So when they all stand up there together she feels like it’s the right way. Dimmesdale also feels like its right thing to do. She shows her approval to him by giving him a kiss. The thir d is when Chillingworth gets up on the scaffold and shows his burning sin under his clothes and it is to helps him becauseShow MoreRelatedThe Scaffold Scenes in Nathaniel Hawthrone ´s The Scarlet Letter791 Words   |  3 Pages Nathaniel Hawthorne’s The Scarlet Letter is known as a psychological novel regarding humanity, sin, guilt, and a fair amount of other ambiguous concepts. One of those is the significance of the three scaffold scenes throughout the work. The scaffold scenes signify religious and moral ideas, such as sinfulness, the spiritual figures the characters each portray, and the character development achieved by public and private absolution. The first scaffold scene begins the novel. In chapters two throughRead MoreSymbolism Is The Use Of Symbols To Signify Important Meaning1305 Words   |  6 Pagesthe continual hold of the past on the present. Hawthorne focused on his Calvinist lineage and America s Calvinist ideological past, as well, in hopes of coming to terms and making sense of it. Hawthorne s writing is full of symbolic characters, settings, and objects. Hawthorne s characters and settings are not always actually important for what they are, but for what they exemplify. Hawthorne s audience finds the meanings of his symbols as they grow among his characters efforts to tell the audience

Tuesday, December 10, 2019

Sensing of Volatile Organic Compounds †MyAssignmenthelp.com

Question: Discuss about the Sensing of Volatile Organic Compounds. Answer: Introduction In order to prepare this report the user the reviewer needs to visit the worlds worst website. Three general perspectives such as the navigation, visual affect (in terms of colour schemes, typography and page layout) and navigation/website layout/access to different web pages on the website are considered for preparing this report professionally. The report illustrates the need regarding the development practices and after analysing the website the reviewer needs to demonstrate whether the website is web responsive or not. After analysing the website if it has been found that, certain changes are required to be adapted by the system developers to improve the current situation of the system Management. Under the selected criteria, the issues that are affecting the general website guidelines will be elaborated in this report. Apart from this, in order to overcome the issues certain general recommendations are also provided in this report. Identification of issues 1 After analysing the current state of the website it has been found that navigation of a website is referred to as one of the most important aspect that might make large difference between the traditional state and the upcoming state of professional website. The resultant generated from the website navigation is strictly dependent upon the structure and labels of the website navigation. After analysing worlds worst website it can be said that the navigation of this website is quite attractive and the overall presence is quite impressive. The navigation of worlds worst website deals with Home page, the list of the worst websites developed in the year between 2005 and 2014, different bad website design approaches, different articles and web design checklist at the same time [1]. Though, the website has many positive features but on the other hand the employees and users can also be negatively impacted by the navigation of the website. It has been identified that, there is no option to t hose users who are going through the websites professionally. As the page lacks the consumer feedback part, thus the website developers will fail to meet the criteria as per the changing demand of the consumers. Apart from this there is not presence of accurate customer care number. It means that, if the consumers of the website will to know anything extra or wants to add up anything to the website then they will fail to do so. On the other hand, the navigation of the worlds worst website do not display any Google map that might display the accurate location of the users. Identification of issues 2 The second criterion for the nominated website worlds worst website is its visual affect. After going through the visual affect of the nominated website it has been found that, the visual display of the website is not that much attractive towards the consumers. The website mainly consists of the list of worst websites that has been developed in the year between 2005 and 2015 [4]. Though, the list of worst websites of 2015, are also coming soon in the website. Thus it can be concluded that the colour scheme of the website is not bad but at the same time it also maintains all the standard of the responsive web design approach. Typography is referred to as an art and technique of the type arrangement. It also includes the thoughtful and deliberate selection criteria of the arrangement of different components that are necessary to develop the website. The type face of typography holds point size, length of the lines, leading, tracking facility, kerning, colour and certain more design affects [7]. The typography of the website is well maintained. The colour combination, the line length and the design affects are quite attractive from the consumers perspectives. After considering the concept of page layout it has been found that, page layout generally holds five different segments such as header, footer, sidebar left, sidebar right and content. However, after analysing the page layout of the website it has been found that the website displays a header section, footer section and a content part [3]. However, though there is a left sidebar but there is not such right sidebar in the website. If the view size of the website changes, then the display of the website will also change accordingly. Name: Navigation/website layout/access to different web-pages on the website After considering the website of worlds worst website it has been found that the layout is not similar for all the pages. Moreover, all the components of the navigation do not have drop down option [2]. The home page has the drop down button, the year wise collection of the websites shows, a drop down button where all collection years are visible. Recommendations In order to mitigate the challenges that the website of worlds worst website is facing certain recommendations are also provided. The recommendations are as follow: Usage of white space Management: In order to make the website more attractive, the developers must, use white space in the page so that all the images and the content of the page becomes clearly visible to the users. Speed of the webpage: While, the users are willing to open one page from another, then the speed of the page in required being fast. The quick response will help to grab more number of consumers throughout the world. Usage of attractive calls to action: In order to improve the current situation of the website the developer are required to use attractive calls to action such as quick response and customer care number, invoice section etc. Conclusion From the overall discussion it has been concluded that the worlds worst website website is efficient and very much attractive to the users. From this website the users will get to know about the list of the worst websites developed by the website developers. Three different perspectives are considered for analysing and review the website professionally. The review aspects include Navigation, Visual effects in terms of colour scheme, typography and page layout and navigation. The entire resultant of the website has been elaborated in this report. References English, A.B.A.,. Recommended website.European Association for Computer Assisted Language Learning, p.53. 2015 Gustafson, A.,.Adaptive web design: crafting rich experiences with progressive enhancement. New Riders. 2015 Lu, W., Wei, Z., Gu, Z.Y., Liu, T.F., Park, J., Park, J., Tian, J., Zhang, M., Zhang, Q., Gentle III, T. and Bosch, M.,. Tuning the structure and function of metalorganic frameworks via linker design.Chemical Society Reviews,43(16), pp.5561-5593. 2014 Maslowska, E., Malthouse, E.C. and Bernritter, S.F.,. Too good to be true: the role of online reviews features in probability to buy.International Journal of Advertising,36(1), pp.142-163., 2017 Melnyk, S.A., Narasimhan, R. and DeCampos, H.A Supply chain design: issues, challenges, frameworks and solutions. ., 2014. Mishra, V.K. and Prantika, A.,. Impact of Social networking/Web 2.0 features in Library management software: a case study of Koha, ILMS., 2016 Sun, Z., Huang, Q., He, T., Li, Z., Zhang, Y. and Yi, L., Multistimuli?Responsive Supramolecular Gels: Design Rationale, Recent Advances, and Perspectives.ChemPhysChem,15(12), pp.2421-2430. 2014. Zhang, M., Feng, G., Song, Z., Zhou, Y.P., Chao, H.Y., Yuan, D., Tan, T.T., Guo, Z., Hu, Z., Tang, B.Z. and Liu, B.,. Two-dimensional metalorganic framework with wide channels and responsive turn-on fluorescence for the chemical sensing of volatile organic compounds.Journal of the American Chemical Society,136(20), pp.7241-7244. 2014

Monday, December 2, 2019

Noise Pollution free essay sample

Noise pollution is the disturbing or excessive noise that may harm the activity or balance of human or animal life. The source of most outdoor noise worldwide is mainly caused bymachines and transportation systems, motor vehicles, aircraft, and trains. [1][2] Outdoor noise is summarized by the word environmental noise. Poor urban planning may give rise to noise pollution, since side-by-side industrial and residential buildings can result in noise pollution in the residential areas. Indoor noise is caused by machines, building activities, music performances, and especially in some workplaces. There is no great difference whether noise-induced hearing loss is brought about by outside (e. g. trains) or inside (e. g. music) noise. High noise levels can contribute to cardiovascular effects in humans, a rise in blood pressure, and an increase in stress and vasoconstriction, and an increased incidence of coronary artery disease. In animals, noise can increase the risk of death by altering predator or prey detection and avoidance, interfere with reproduction and navigation, and contribute to permanent hearing loss. We will write a custom essay sample on Noise pollution or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page It is extremely important that we understand how sound pollution affects us. Some of us may be suffering from the negative effects of sound pollution and not know it because they dismiss it assomething trival when it is actually not. Therefore this page will be dedicated to explaining exactly what noise pollution is about, what causes it, how to calculate sound and how fast it travels. Effects Human[edit] Noise pollution affects both health and behavior. Unwanted sound (noise) can damage psychological health. Noise pollution can cause trouble, hypertension, high stress levels,tinnitus, hearing loss, sleep disturbances, and other harmful effects. [3][4][5][6] Furthermore, stress and hypertension are the leading causes to health problems. [4][7] Sound becomes unwanted when it either interferes with normal activities such as sleeping, conversation, or disrupts or diminishes one’s quality of life. [8] Chronic exposure to noise may cause noise-induced hearing loss. Older males exposed to significant occupational noise demonstrate more significantly reduced hearing sensitivity than their non-exposed peers, though differences in hearing sensitivity decrease with time and the two groups are indistinguishable by age 79. A comparison of Maaban tribesmen, who were insignificantly exposed to transportation or industrial noise, to a typical U. S. population showed that chronic exposure to moderately high levels of environmental noise contributes to hearing loss. [3] High noise levels can contribute to cardiovascular effects and exposure to moderately high levels during a single eight-hour period causes a statistical rise in blood pressure of five to ten points and an increase in stress,[3] and vasoconstriction leading to theincreased blood pressure noted above, as well as to increased incidence of coronary artery disease. Noise pollution also is a cause of annoyance. A 2005 study by Spanish researchers found that in urban areas households are willing to pay approximately four Euros per decibel per year for noise reduction. [10] Wildlife[edit] Noise can have a detrimental effect on wild animals, increasing the risk of death by changing the delicate balance in predator or prey detection and avoidance, and interfering the use of the sounds in communication, especially in relation to reproduction and in navigation. Acoustic overexposure can lead to temporary or permanent loss of hearing. An impact of noise on wild animal life is the reduction of usable habitat that noisy areas may cause, which in the case of endangered species may be part of the path to extinction. Noise pollution has caused the death of certain species of whales that beachedthemselves after being exposed to the loud sound of military sonar,[12] (see also Marine mammals and sonar). Noise also makes species communicate more loudly, which is called Lombard vocal response. [13] Scientists and researchers have conducted experiments that show whales song length is longer when submarine-detectors are on. If creatures do not speak loudly enough, their voice will be masked by anthropogenic sounds. These unheard voices might be warnings, finding of prey, or preparations of net-bubbling. When one species begins speaking more loudly, it will mask other species voice, causing the whole ecosystem eventually to speak more loudly. Marine invertebrates, such as crabs (Carcinus maenas), have also been shown to be impacted by ship noise. [15][16] Larger crabs were noted to be impacted more by the sounds than smaller crabs. Repeated exposure to the sounds did lead to acclimatization. Â  European Robins living in urban environments are more likely to sing at night in places with high levels of noise pollution during the day, suggesting that they sing at night because it is quieter, and their message can propagate through the environment more clearly. [17] The same study showed that daytime noise was a stronger predictor of nocturnal singing than night-time light pollution, to which the phenomenon often is attributed. Zebra finches become less faithful to their partners when exposed to traffic noise. This could alter a populations evolutionary trajectory by selecting traits, sapping resources normally devoted to other activities and thus leading to profound genetic and evolutionary consequences. [18] CAUSES When one thinks of Unwanted Sounds or Noise Pollution, it always brings to mind images of transportation vehicles, industrial machinery, construction sites, loud speaker, big events, etc. These are very common or usual reasons of noise pollution in our internal and external surroundings. This article will give you further information about the causes of disgusting noise in our environment. Â  Public/Private Transportation Vehicle – these are one of the daily causes of noise pollution in our streets, public hi-way, etc. Why? Because in every kind of vehicle it creates disturbing sounds by starting the engines, blowing of horns, playing music from car amplifier, etc. As a result the city has now become exposed from these types of unavoidable and uncontrollable noise. 2. Industrial Machinery – there are so many various examples of industrial machinery that creates severe disturbing and hazardous sounds to the industrial workers. The multiple kinds of industrial machinery are huge generators, large compressors, cranes, furnaces, exhaust fans and many more. It is through these objects that adds distractions and complications in our ambience. 3. Construction Sites – we all know that every construction area uses huge equipments as part of their job like pay loader, crane, cement mixer, bulldozer, etc. These construction items are expected to perform vibrations and loud noise that can affect illnesses to all construction workers. 4. Loud Speaker – using loud speaker in public or private areas like residential, commercial establishment, public market, concert arena, etc. , can definitely and instantly contributes disturbing sounds in our community or environment. The sounds from the loud speakers can immediately spread in our atmosphere and undoubtedly becomes one of the causes of noise pollution. 5. Big Events – we all love celebrating big events such as birthdays, anniversaries, house parties, festivals. But, do you realize how much noise you and your special visitors can create unpleasant and very disturbing sounds in your external surroundings or neighborhood? While you and your friends are enjoying your special occasion, your angry neighborhoods are having difficulties in their sleeping hours. These are the common causes and very prominent distractions in our precious space or environment. But there are still many ways to avoid and to decrease the sounds of these unlikable and harmful sounds in your local area. With a strong understanding about the main cause of noise pollution in your area, you will surely find the perfect solution of this kind of dilemma. Measurement of Sound : The intensity of sound is measured on a scale called decibel scale or db scale. It measures the loudness of sound in terms or relative units of energy or power on a logarithm scale. The scale starts from 0 db and is considered as threshold of hearing which the human can hear. A sound of 10 db is ten times louder than 0 (zero) db and a sound of 20 db is 10 x 10 times louder and likewise a sound of 30 db is 10 x 10 x 10 times louder. Mitigation[edit] Roadway noise can be reduced by the use of noise barriers, limitation of vehicle speeds, alteration of roadway surface texture, limitation of heavy vehicles, use of traffic controls that smooth vehicle flow to reduce braking and acceleration, and tire design. An important factor in applying these strategies is a computer model for roadway noise, that is capable of addressing local topography, meteorology, traffic operations, and hypothetical mitigation. Costs of building-in mitigation can be modest, provided these solutions are sought in the planning stage of a roadway project. Aircraft noise can be reduced by using quieter jet engines. Altering flight paths and time of day runway has benefitted residents near airports. Industrial noise has been addressed since the 1930s via redesign of industrial equipment, shock mounted assemblies and physical barriers in the workplace. Legal status[edit] Main article: Noise regulation Up until the 1970s governments viewed noise as a nuisance rather than an environmental problem. In the United States, there are federal standards for highway and aircraft noise; states and local governments typically have very specific statutes on building codes, urban planning, and roadway development. Noise laws and ordinances vary widely among municipalities and indeed do not even exist in some cities. An ordinance may contain a general prohibition against making noise that is a nuisance, or it may set out specific guidelines for the level of noise allowable at certain times of the day and for certain activities. The Environmental Protection Agency retains authority to investigate and study noise and its effect, disseminate information to the public regarding noise pollution and its adverse health effects, respond to inquiries on matters related to noise, and evaluate the effectiveness of existing regulations for protecting the public health and welfare, pursuant to the Noise Control Act of 1972 and the Quiet Communities Act of 1978. Portland, Oregon instituted the first comprehensive noise code in 1975 with funding from the EPA (Environmental Protection Agency) and HUD (Housing and Urban Development). The Portland Noise Code includes potential fines of up to $5000 per infraction and is the basis for other major U. S. and Canadian city noise ordinances. [21] Many conflicts over noise pollution are handled by negotiation between the emitter and the receiver. Escalation procedures vary by country, and may include action in conjunction with local authorities, in particular the police.