Wednesday, December 25, 2019

Essay on Comparison of Animal Rights Texts - 777 Words

Comparison of Animal Rights Texts I am going to compare two pieces of text called: Its a crying shame and Sorry, but I think dying people are more important than dumb animals, by an Animal Rights Group and Polly Toynbee respectively. The first article is intended to appeal to a younger audience who think that killing animals is wrong because they are cute etc. The second extract is aimed at adults who are interested in the welfare of human beings. The Animal Aid leaflet is persuasive as it is trying to pledge donations to stop animal experiments. The newspaper article is informative and persuasive by saying that killing an animal to save humans is good because would you rather die than an†¦show more content†¦I find this rather effective and it would catch my eye if I glanced at the article and draw my attention towards reading it. On the Animal Rights Leaflet there is a main image of a dog on the front, which I think appears to be crying. This looks the part and the dog really does look sad. This attracts attention as if the dog was crying for help. The use of colour is used well as the picture of the dog is a golden brown shade, which is very attractive I would say. People will instantly want to read this leaflet because of the expression on the dogs face. On the back of the leaflet there is picture of a mouse with some sort of growth coming off its side, I suspect that this is a tumour of some sorts. Personally I dont find this disturbing but a vast majority of the public will do and will never want that to happen again so they will want to pledge money to help stop animal experimentation. There is another picture of a monkey of some sorts and it appears to be very sad as if it has been tortured etc. I think the choice of pictures on this leaflet is rather good and will help put the point across to the re ader. The newspaper articles picture is very plain and boring. It is just aShow MoreRelatedA Comparison of Two Media Texts Essay886 Words   |  4 PagesA Comparison of Two Media Texts I am going to compare two articles about medical testing on animals. One is a newspaper article written by Polly Toynbee and is called ‘Sorry, but I think dying people are more important than dumb animals,’ this was published in the Guardian. The other is a leaflet with the title ‘It’s a crying shame’ which is design for animal aid. The Guardian news article is for medical testing on animals. The Animal Aid is against medical testing onRead MoreContemporary Civilizations : An Essential Part Of An Individual s Highest Level Of Achievement1461 Words   |  6 Pagestypes of communities different texts discuss, we have come across the conversation relating an individual’s inner nature and his (or her) external circumstances. Up to the point of Teresa de Cartagena’s texts, writers argue that an individual’s highest level of achievement is primarily influenced by their internal nature and only secondarily reinforced by external circumstances. Teresa’s argument contradicts this idea. Since the purpose of this course is to discuss texts reexamine the values on whichRead MoreOthello - shakespeare and saxs film adaptation923 Words   |  4 Pagesï » ¿Texts reflect their contexts. Is this true of Shakespeare’s Othello and Sax’s film Othello? (700-800 words). Texts reflect their contexts and this is evident in both William Shakespeare’s Othello and Geoffrey Sax’s film Othello. This reflection is established through the two ideas of racism and the inequality between genders. The context of a text plays an essential role as it is the way in which the composers convey their message and this is done effectively as both composers are conveying anRead MorePower Struggle In The Handmaids Tale By Margaret Atwood1373 Words   |  6 Pagesstruggles and their correlation to gender through their respective texts. Shakespeare and Atwood use the genders of their central characters to focus on power in historical and dystopian settings. Both authors explore religious frameworks, the types of power in a patriarchal society, and the implications of gender on power through use of stylistic devices and literary techniques. Gender stereotypes play a major role in both texts, with the authors conforming to the stereotype that men are violentRead MoreThe Animal Symbols Of Animals920 Words   |  4 PagesAnimals are often used in literature to describe elements of one’s character or appearance. Different species of animals have various characteristics with which they are associated, which is a tool that authors use to illustrate characters in a more abstract way. Some animal descriptions also give key insight to the societal or cultural norms that are present within a particular text. The animal symbolism used in literature often represents elements of humanity and also highlights varying culturalRead MoreHistory Of Natural History By Pliny1374 Words   |  6 Pagessections Pliny talks about the womb, animals which have suet, the marrow, bones and the nerve. Furthermore, the paper will also include a short biographical section on who Pliny was, and an assessment of whether or not he is advancing f urther knowledge on the subject or merely repeating what he has heard. Summary The 11th book, volume 2 of the naturalis historia begins with an elaborate description of the womb. According to Pliny, every woman and some animals share the same organs. The one thatRead MoreAdvertising Is An Art Form1234 Words   |  5 Pages focuses on conservation of nature and animals. This ad instead acts as a public service announcement, looking to raise awareness for its cause and raise funds. It brings attention to the plight of the Bluefin Tuna, which has been overfished to the brink of extinction. Smartly, this ad is crafted to appeal to all demographics. I think it would be particularly influential to younger adults. Those who are young enough to fondly remember learning about animals in school, and nostalgic about field tripsRead More`` The Moral Instinct By Paul Bloom911 Words   |  4 Pagesthat this sense comes after experiences. In the text, â€Å"’The Moral Instinct’ (2008)† Steve Pinker argues that, moral sense has been a science that every individual create in their own in order to focus on ethics, separately of what society has established as the rights and wrongs. Giving numerous experiments that support his claim, Pinker creates a strong essay e that explains morality. Nevertheless, Pinker’s claim can be compared to other ideas. The text â€Å"The moral life of babies (2010)† by Paul BloomRead MoreControversy Within Racism And Religion1738 Words   |  7 Pagesstill? I would like to think that racism should not even matter base d off what is now happening today. Within the essay I will discuss to the reader about three stories that to me had many similarities in comparisons; with controversy, racial segregation and biblical context. I will explain how the text related subject of racial profiling which showed a symbolic idol of (God) in the form of faith during these early times. I will then speak on the controversy that the narrator tried to convey the audienceRead MoreThe Poaching Of Animals And The Subsequent Trading Of Illegal Animals1621 Words   |  7 PagesThe poaching of animals and the subsequent trading of illegal animal products are issues that have been prevalent in the media and environmental groups for quite some time. Although one may assume that poaching has declined in recent years due to an increase in overall global awareness, it nevertheless continues to be a pressing concern. A study performed by the Minister of Environmental Affairs for South Africa found that 2015 was the deadliest y ear for rhinos in decades, with 1,305 killed (Minister

Tuesday, December 17, 2019

Oryx And Crake And Political Practices - 911 Words

Oryx and Crake and Political Practices The dystopian future depicted in the novel Oryx and Crake by Margaret Atwood is one that is composed of a multitude of premises that are capable of being applied in fields other than strictly literary ones. One such field that this work can apply to is that of politics, and more specifically political theory. Atwood’s dystopian world is one that many political philosophers would compare to premises set forth by Thomas Hobbes, Niccolà ³ Machiavelli, Aristotle, and Plato. The political lens that this work can be viewed through allows for a portion of each philosophers ideas and theories to shine through. The first theory that is applicable is that of Plato. In Plato’s Republic one is introduced to a theoretical work in which the perfect just society is divided into three categories based on the metal soul that one is born with. The souls of gold are the philosopher kings, while those of silver are the warrior class, and the ones of bronze are the working class. This idea applies to Snowman for after the entire societal system has collapsed around him, he protects the Crakers from the harm that knowledge of what really happened could bring. Also Snowman would be a part of the philosopher kings for he lives apart from the Crakers, and has the wisdom and capability to think on a higher level and consider other options. Plato states in Book 2 that the philosopher kings lead simple lives due to the ever increasing complexity of the definitionShow MoreRelatedMargaret Atwood : A Social Activist1225 Words   |  5 PagesFeminist Literature The 1980s signified the continuation of an era of social and political upheaval in the United States of America. At the forefront was a socially conservative agenda that aimed to rescind women’s rights only ratified less than a decade before, a marked display of the nation’s desire to uphold traditional values that defined the preceding generation (Franà §oise). Among the devastating political climate, however, was Margaret Atwood: a voice that refused to be silenced, a progressiveRead MoreAnalysis Of Oryx And Crake By Margaret Atwood1619 Words   |  7 PagesIn the novel Oryx and Crake by Margaret Atwood, the protagonist, Snowman, lives in the aftermath of a society that was controlled almost entirely by pharmaceutical companies. Snowman, who used to be known as Jimmy, lives in isolation as the human population has been wiped out by a disease that was spread through a drug meant to prevent aging. This was at the hand of his boss and childhood friend, Crake, wh o wanted to make way for a new race of genetically engineered humanoids that are designedRead MoreOryx and Crake by Margaret Atwood1014 Words   |  4 Pagesthe world today is an ever present debatable issue in our current society. In the science fiction novel Oryx and Crake by Margaret Atwood, the author as put by Jayne Glover in critical analysis â€Å"Human/Nature: Ecological Philosophy in Margaret Atwood’s Oryx and Crake†, Atwood â€Å"speculates on what the near future may be like considering the realities of contemporary environmental, social and political issues† (Glover 50). Atwood’s novel specifically focuses on the question: when will the line be drawn

Sunday, December 8, 2019

Pride and Prejudice The Cost of Marriage free essay sample

This paper takes a look at marriage in Jane Austins time through her book Pride and Prejudice. This paper is a literary critique about the novel Pride and Prejudice. It comments on the view of marriage as portrayed through the characters in the novel. 19th century England had serious social problems from the heyday of Royalty and Nobility. One of the most significant of these was the tendency to marry for money. A person sought a partner based on the dowry receivable and their allowance. This process went both ways: a beautiful woman might be able to snag a rich husband, or a charring and handsome man could woo a rich young girl. In these marriages, money was the only consideration. Love was left out, with the thought that it would develop as the years went by. In Pride and Prejudice, Jane Austen comments that marriage in her time is a financial contract, where love is strictly a matter of chance. We will write a custom essay sample on Pride and Prejudice: The Cost of Marriage or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page This is clearly evident from the very first line of the novel: It is a truth universally acknowledged that a single man in possession of a good fortune must be in want of a wife (Austen, 1).

Sunday, December 1, 2019

Methods Of Recovering Energy From Waste An Environmental Sciences Essay Example

Methods Of Recovering Energy From Waste An Environmental Sciences Essay Biomass ( waste ) energy is progressively pulling attending worldwide because it is a renewable beginning of energy and potentially CO2 impersonal. At present, most waste stuffs are converted into electricity frequently by burning. Waste burning is widely applied for territory warming and combined heat and power for electricity coevals. This study describes waste, waste decrease and intervention ordinances in Europe every bit good as different types of waste generated, an overview of waste to energy engineerings applied throughout the universe today. Energy from waste has been evaluated based on their ability to cut down the emanation of pollutant into the ambiance. In order to extenuate clime alteration which is deriving increasing consciousness, recent developments of different engineerings that have been able to treat waste to bring forth heat and power with high efficiencies can be considered to be the most feasible option to replace fossil fuels. 2 Introduction Due to the lifting cost and the ecological disadvantages of fossil fuels, there as been concerns about the hereafter of energy supply in the universe. Harmonizing to the World Energy Council, dodo fuel covers about 82 % of the universe s energy. And this has caused terrible amendss for the environment in footings of nursery emanations, sea degree rise, air pollution, etc. Furthermore, as the World continues to see globalisation, rapid industrialisation and technological promotion, it will surely acquire to a point, where supply of these fossil fuels will non run into demand. Therefore, it is imperative to happen an alternate beginning of energy ( Soetaert and Vandamme, 2006 ) . We will write a custom essay sample on Methods Of Recovering Energy From Waste An Environmental Sciences specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Methods Of Recovering Energy From Waste An Environmental Sciences specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Methods Of Recovering Energy From Waste An Environmental Sciences specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Research and development of renewable beginnings of energy and energy from biomass is expected to be of huge benefit to the society as it reduces the concentration of C dioxide in the ambiance and it is non exhaustible. Biomass is a major beginning of biologically derived bio fuels ( bio-ethanol ) and biogas. This is well going a world in energy/electricity coevals. Biomass can be burnt straight to bring forth heat or electricity, or it can be converted into solid, liquid or gaseous fuel through agitation procedure into intoxicant and anaerobiotic digestion into biogas. There are many environmental and societal benefits associated with biomass energy. These include decrease in CO2 degrees, energy bearers to rural communities, waste control, etc. ( Calbe, Bajay, Rothman and Harry, 2000 ) . Biomass natural stuffs for energy coevals includes the first coevals feedstocks i.e. energy harvests ( maize, sugar cane, wheat, etc ) and the 2nd coevals feedstock chiefly lignocellulosic stuffs ( wood and agricultural residues ) . Hence, utilizing biomass as a replacement for fossil fuels is sustainable and good. However, there have been contentions on the usage of human nutrient ( energy harvest ) for energy coevals particularly in developing states where there is deficit of nutrient. Hoffert et Al. ( 2002 ) , Dismiss the usage of biomass for energy, others take the opposite position ( Dewulf and Langenhove 2006 ) . To this consequence, energy recovery from waste can be an economical feasible option. 3 Wastes 3.1 Definition Waste arises as a consequence of human technological development and societal activities. The Uk s Environmental Protection Act 1990 indicated waste includes any substance which constitutes a scrap stuff, an wastewater or other unwanted excess originating from the application of any procedure or any substance or article which requires to be disposed of which as been broken, worn out, contaminated or otherwise spoiled, this is supplemented with anything which is discarded otherwise dealt with as if it were waste shall be presumed to be waste unless the reverse is proved. Murphy et Al. ( 2002 ) defined waste as a stuff with no farther beneficial usage. The figure below shows the Conventional illustration of the EU Legal definition of waste 3.2 EU WASTE FRAMEWORK DIRECTIVE The Directive requires all Member States to take the necessary steps to guarantee that waste is recovered or disposed of without jeopardizing human wellness or doing injury to the environment and includes permitting, enrollment and review demands. The Directive besides requires Member States to take appropriate steps to promote foremost, the bar or decrease of waste production and its injuriousness and secondly the recovery of waste by agencies of recycling, re-use or renewal or any other procedure with a position to pull outing secondary natural stuffs, or the usage of waste as a beginning of energy ( Department for Environment, Food and Rural Affairs, 2009 ) . 3.3 UK WASTE MANAGEMENT POLICY The UK Waste Policy is developed from the thought of sustainable development. This policy promote recreation from landfills by enforcing high revenue enhancement levies on landfill site, cut down the sum of waste produced by the commercial sector, and finally promote re-use and recycling of stuffs. 3.4 WASTE HIERARCHY Figure 3.1 Waste hierarchy 3.5 TYPES OF WASTE Municipal Solid Waste Hazardous/Radioactive Waste Sewage Sludge Medical/Clinical Waste Agricultural Waste Industrial and Commercial Waste Other Waste e.g. building and destruction industry waste, mines and quarry waste and power station ash, Fe and steel scorias ( Williams, 1999 ) . There are besides two different sorts of component fraction in a waste watercourse ; The Organic fraction i.e. Biodegradable and the Inorganic fraction. 3.5.1Municipal Solid Waste This is composed of/includes chiefly household waste, with commercial and trade waste which is collected or disposed of by a municipality within an country. The composing of MSW watercourse varies, depending upon socio-economic factors, geographical locations, clime, population denseness and degree of industrialisation etc. for illustration in US and other industrialised states where value is placed on clip, consumers have adapted to the outlook of utilizing disposable at all times, thereby driving packaging and wrapping engineerings to a new degree, in add-on with the decayable waste from nutrient materials. The energy fraction contained in stuffs of this type of waste watercourse can be between 75 to 90 % . Whereas in less developed states where the waste watercourse is composed dominantly of decayable fraction i.e. groceries, veggie and organic stuffs with infinitesimal packaging stuffs, the energy content will be much lower ( Murphy, 2002 ) . Topographic point Sum OF MSW Kumasi, Ghana 365000 metric tons in 2006 China 180 million metric tons expected for 2010 United kingdom 34 million metric tons in 2007/2008 USA 190 million metric tons in 2009 Australia 43.8 million metric tons in 2006/2007 Ontario 267000 metric tons in 2007 Table 3.1 Average sum of MSW generated in different portion of the universe Data from Thermal Processing of Waste, J C Jones 2010 Fig 3.2 Municipal solid waste disposal tracts in US Data from US EIA 2010 3.5.2 Hazardous Waste Hazardous Waste is waste which contains substances that are considered to be unsafe to wellness and society. This includes substances which are reactive, infective, harmful, toxic and caustic etc. illustrations are chemicals such as, H nitrile, sulfuric acid, hydrofluoric acid etc. explosives such as dynamite, ammo etc. H2O reactive chemicals such as K, phosphoric, sodium hydride etc. In USA, estimate arisings of jeopardy waste is 275 million metric tons, UK 4.5 million metric tons, Germany 6 million metric tons, Spain 1.7 million metric tons ( Williams, 1999 ) . 3.5.3 SEWAGE SLUDGE Sewage Sludge is normally generated at the waste H2O intervention installation. It is a byproduct of the intervention of natural sewerage from domestic families, which may besides include commercial and industrial waste. The sewerage is composed chiefly of H2O, but after intervention, the wet stuff is concentrated to organize sewerage sludge ( Williams, 1999 ) . They are solid, semi-solid or bio solid in nature. Harper-Collins Dictionary of Environmental Science defines Sewage Sludge as a semi-solid mixture of bacteriums, virus-laden organic affair, toxic metals, man-made organic chemicals, and settled solids removed from domestic and industrial waste at sewerage intervention workss. ( Renewable Energy Institute ) The sewerage sludge intervention undergoes both aerophilic and anaerobiotic digestion and the concluding treated sewerage sludge is either land filled, spread on land as fertilisers or incinerated. Recent developments have shown that biogas can be produced during anaerobi otic digestion. 3.5.4 CLINICAL WASTE Clinical Waste is chiefly produced/waste originating from wellness Centres, infirmaries and nursing places etc. Examples include drugs, panpipes, acerate leafs, blood, human or carnal tissue etc. Approximately 0.3 1000000s metric tons of clinical waste arises in the UK yearly. Majority of clinical waste are incinerated ( Williams, 1999 ) . 3.5.5 AGRICULTURAL WASTE Agricultural waste is godforsaken watercourses by and large produced from agricultural activities. They are produced within agricultural premises and they include organic stuffs such as slurry, manure from farm animal, silage wastewater and harvest residues. It is estimated that about 700 million metric tons of agricultural waste is produced in OECD states. UK besides produces big tunnage, 80 million metric tons estimated from housed farm animal entirely ( Williams 1999 ) . 3.5.6 INDUSTRIAL AND COMMERCIAL WASTE These are types of waste watercourse that arises from both industrial and commercial sectors such as hotels and catering, nutrient, drink and baccy fabrication industries, metal fabrication industries, lumber and wooden furniture industries, mechanical and electrical industries, conveyance and communicating industries etc. The typical composing of this waste streams differs and really broad. A study carried out by Environmental Agency of some 4,500 commercial and industrial concerns in England in 2002/2003 showed that commercial waste amounted to 30 million metric tons and industrial waste 38 million metric tons ( meitnerium ) . In that study, the chief sectors bring forthing C A ; I wastes were retail ( 12.7mt ) , nutrient, drink and baccy ( 7.2mt ) , professional services and other ( 7.1mt ) , public-service corporations ( 6.2mt ) , the chemicals industries ( including fiber, gum elastic and plastics ) ( 5.3mt ) , basic metal industry ( 4.8mt ) and hotels/catering ( 3.4mt ) ( Defra, commercial and industrial waste in England, 2009 ) . 4 ENERGY RECOVERIES FROM WASTE TECHNOLOGIES Energy is recovered from waste either through thermic burning or biological/chemical reactions. The energy recovery procedure produces electricity straight through burning, or produces man-made and combustible fuel i.e. methane. 4.1 Incineration Incineration with energy recovery is the controlled burning of waste and it is the most broad spread waste to energy execution. It involves the burning of waste watercourses at high temperatures and the heat produced can be used to drive a turbine in order to bring forth electricity and territory warming. Waste stuffs or fuel are fed into incinerators in two ways, the mass fired/burning systems and decline derived fuel ( RDF ) fired systems. The mass firing involves minimum processing ; the full assorted municipal solid waste is fed into a furnace without any removal/separation of reclaimable and non combustible stuffs. For RDF fired engineerings, MSW undergoes pre-treatment, separation of non-combustible and reclaimable stuff which is known as RDF. RDF fired systems has a higher energy content compared to unrefined MSW because of its homogeneousness ( Tchobanoglous, Thiesen and Vigil, 1993 ) . There are assorted types of incinerator works design: moving grating, fixed grating, rotary-kiln, and fluidized bed incinerator. 4.1.1 Traveling Grate This can besides be called Municipal Solid Waste incinerators. The traveling grating enables the motion of waste by a waste Crane at one terminal of the grating through the burning chamber to the ash cavity at the lower terminal. The burning air is supplied through the grating prevarication below. Cooling of the grating itself is indispensable for the mechanical strength of the grating. One individual traveling grate boiler can manage 35 metric metric tons of waste per hr, and 8,000 hours per twelvemonth. 4.1.2 Fixed Grate This is a simpler type of incinerator. It is made of a brick lined compartment with a fixed metal grating above the lower ash cavity, with one gap for burden and another gap in the side for taking noncombustible solids known as cinders. 4.1.3 Rotary kiln It is largely used by municipalities and big industrial workss. Rotary kiln incinerators have 2 Chamberss, primary and secondary chamber. In the primary chamber, motion and transition of solid fraction of the waste to gases and partial burning occurs while the secondary chamber completes the gas stage burning reactions. 4.1.4 Fluidized Bed Fluidized Bed Combustion ( FBC ) is a burning engineering used in power workss. FBC developed from attempts to happen a burning procedure that is able to command pollutant emanations. Advanced fluidized bed burning offers a feasible power coevals technique. In fluidized bed burning, a strong air flow is forced through a sand bed, which keeps the waste suspended on wired air currents and takes on fluid like character. Due to the turbulent commixture, the waste and sand are to the full circulated through the furnace. 4.2 BALDOVIE WASTE TO ENERGY PLANT The Baldovie waste to energy works is a province of the art installation commissioned in Dundee in 1999, to replace a waste disposal incinerator due to its inability to run into EU demands on emanations. The works is run by a joint venture between Dundee metropolis council and private sector spouses. The joint venture is jointly called Dundee energy recycling limited ( DERL ) . The works processes 120,000 metric tons of waste yearly and generates electricity to run into its ain demand ( about 2.2MW ) and besides supply to the populace ( about 8.8MW ) . Separation techniques carried out before burning removes and recovers ferric metals which can be resold ( Gazetteer for Scotland, 2010 ) . 4.3 LANDFILL GAS CAPTURE Landfill is a waste disposal site where waste is deposited onto or into the land. When waste is deposited, it undergoes assorted debasement procedure which produces gas chiefly methane. Modern landfills have gas recovery systems, where the landfill gas is extracted and can be used for production of steam, heat and electricity ( Dewulf and Langenhove 2006, p.248 ) 4.4 ANAEROBIC DIGESTION Anaerobic intervention engineerings are used throughout the universe for effectual intervention of organic waste. This engineering is peculiarly attractive because the energy required for runing the procedure is minimum compared to energy required for aerophilic procedure. Anaerobic digestion is a complex biogenic procedure which involves the microbic debasement or transition of organic waste in a closed reactor vas ( absence of air ) to bring forth gas chiefly methane ( 55-65 % ) , CO2 ( 35-45 % ) , and hint sums of N2, H2 and H2S, depending on factors such as the composing of waste, organic burdens applied to the digester, clip and temperature. The methane-rich biogas which can be combusted to bring forth heat and electricity In general anaerobiotic digestion is considered to happen in three phases: A ] Liquefaction or polymer dislocation ; B ] Acid formation ; and C } Methane formation Substrates for anaerobiotic digestion includes waste H2O from nutrient processing, breweries, distilleries etc. sewerage sludge, carnal waste, farm residues. 4.5 GASIFICATION AND PYROLYSIS Gasification is defined as a partial oxidation/combustion of biomass and assorted combustible waste/carbonaceous fuels to bring forth gas. This gas can be used in internal burning engines and gas turbines to bring forth electric power. Pyrolysis is a thermic procedure which involves the dislocation of organic stuffs in waste under force per unit area in the absence of O. The pyrolysis procedure produces a liquid residue and gas which can be combusted to bring forth electricity. The chief difference between the two systems is that, pyrolysis system use an external beginning of heat to drive the endothermal pyrolysis reaction in an O free environment, whereas gasification systems are self-sustainable and utilize air or O for partial burning of solid province ( Tchobanoglous, Thiesen and vigil 1993 ) . 5 Decision Energy from waste has been evaluated based on their ability to cut down the emanation of pollutant into the ambiance, minimise waste, and generate heat and power. With the recent development of different engineerings that have been able to treat waste to bring forth energy with high efficiencies, waste to energy engineerings can be considered to be feasible substitute/option for fossil fuels for electricity coevals and besides in minimizing of waste accretion.

Tuesday, November 26, 2019

John D. Rockefeller, Americas First Billionaire

John D. Rockefeller, America's First Billionaire John D. Rockefeller (July 8, 1839–May 23, 1937) was an astute businessman who became America’s first billionaire in 1916. In 1870, Rockefeller founded Standard Oil Company, which eventually became a domineering monopoly in the oil industry. Rockefeller’s leadership in Standard Oil brought him great wealth as well as controversy, as many opposed Rockefeller’s business practices. Standard Oil’s nearly complete monopoly of the industry was eventually brought to the U.S. Supreme Court, which ruled in 1911 that Rockefeller’s titanic trust should be dismantled. Though many disapproved of Rockefeller’s professional ethics, few could devalue his substantial philanthropic endeavors, which led to him to donate $540 million (more than $5 billion today) during his lifetime to humanitarian and charitable causes. Fast Facts: John D. Rockefeller Known For: Founder of Standard Oil and Americas first billionaireBorn: July 8, 1839 in Richford, New YorkParents: William â€Å"Big Bill† Rockefeller and Eliza (Davison) RockefellerDied: May 23, 1937 in Cleveland, OhioEducation: Folsom Mercantile CollegePublished Works: Random Reminiscences of Men and EventsSpouse: Laura Celestia â€Å"Cettie† SpelmanChildren: Elizabeth (Bessie), Alice (who died in infancy), Alta, Edith, John D. Rockefeller, Jr.Notable Quote: I was early taught to work as well as play, My life has been one long, happy holiday; Full of work and full of play- I dropped the worry on the way- and God was good to me every day. Early Years John Davison Rockefeller was born on July 8, 1839, in Richford, New York. He was the second of six children born to William â€Å"Big Bill† Rockefeller and Eliza (Davison) Rockefeller. William Rockefeller was a traveling salesman peddling his questionable wares across the country. As such, he was often absent from the home. John D. Rockefeller’s mother essentially raised the family on her own and managed their holdings, never knowing that her husband, under the name of Dr. William Levingston, had a second wife in New York. In 1853, â€Å"Big Bill† moved the Rockefeller family to Cleveland, Ohio, where Rockefeller attended Central High School. Rockefeller also joined the Euclid Avenue Baptist Church in Cleveland, of which he would remain a long-time active member. It was under his mother’s tutelage that the young John learned the value of religious devotion and charitable giving, virtues he practiced regularly throughout his life. In 1855, Rockefeller dropped out of high school to enter Folsom Mercantile College. After completing the business course in three months, 16-year-old Rockefeller secured a bookkeeping position with Hewitt Tuttle, a commission merchant and produce shipper. Early Years in Business It didn’t take long for John D. Rockefeller to develop a reputation as an astute businessman: hardworking, thorough, precise, composed, and adverse to risk-taking. Meticulous in every detail, especially with finances (he even kept detailed ledgers of his personal expenditures from the time he was 16), Rockefeller was able to save $1,000 in four years from his bookkeeping job. In 1859, Rockefeller added this money to a $1,000 loan from his father in order to invest in his own commission merchant partnership with Maurice B. Clark, a former Folsom Mercantile College classmate. Four years later, Rockefeller and Clark expanded into the regionally booming oil refinery business with a new partner, chemist Samuel Andrews, who had built a refinery but knew little about business and the transporting of goods. However, by 1865, the partners, which numbered five including Maurice Clark’s two brothers, were in disagreement about the management and direction of their business, so they agreed to sell the business to the highest bidder amongst them. The 25-year-old Rockefeller won it with a bid of $72,500 and, with Andrews as a partner, formed Rockefeller Andrews. In short order, Rockefeller studied the nascent oil business in earnest and became savvy in its dealings. Rockefeller’s company started small but soon merged with O.H. Payne, a large Cleveland refinery owner, and then with others as well. With his company growing, Rockefeller brought his brother (William) and Andrews’ brother (John) into the company. In 1866, Rockefeller noted that 70% of refined oil was being shipped to overseas markets. Rockefeller set up an office in New York City to cut out the middleman, a practice he would use repeatedly to cut expenses and increase profits. A year later, Henry M. Flagler joined the group and the company was renamed Rockefeller, Andrews, Flagler. As the business continued to succeed, the enterprise was incorporated as the Standard Oil Company on January 10, 1870, with John D. Rockefeller as its president. The Standard Oil Monopoly John D. Rockefeller and his partners in the Standard Oil Company were rich men, but they strove for even greater success. In 1871, Standard Oil, a few other large refineries, and major railroads secretly joined together in a holding company called the South Improvement Company (SIC). The SIC gave transportation discounts (â€Å"rebates†) to the large refineries that were part of their alliance but then charged the smaller, independent oil refineries more money (â€Å"drawbacks†) to shuttle their goods along the railroad. This was a blatant attempt to economically destroy those smaller refineries and it worked. In the end, many businesses succumbed to these aggressive practices; Rockefeller then bought out those competitors. As a result, Standard Oil obtained 20 Cleveland companies in one month in 1872. This event became known as â€Å"The Cleveland Massacre,† ending the competitive oil business in the city and claiming 25% of the country’s oil for Standard Oil Company. It also created a backlash of public contempt, with the media dubbing the organization â€Å"an octopus.† In April 1872, the SIC was disbanded per the Pennsylvania legislature but Standard Oil was already on its way to becoming a monopoly. A year later, Rockefeller expanded into New York and Pennsylvania with refineries, eventually controlling nearly half of the Pittsburgh oil business. The company continued to grow and consume independent refineries to the point that Standard Oil Company commanded 90% of America’s oil production by 1879. In January 1882, the Standard Oil Trust was formed with 40 separate corporations under its umbrella. To increase the financial gain from the business, Rockefeller eliminated middlemen like purchasing agents and wholesalers. He began manufacturing the barrels and cans needed to store the company’s oil.  Rockefeller also developed plants that produced petroleum byproducts like petroleum jelly, machine lubricants, chemical cleaners, and paraffin wax. Ultimately, the arms of the Standard Oil Trust eradicated the need for outsourcing entirely, which devastated existing industries in the process. Marriage and Children On September 8, 1864, John D. Rockefeller married the valedictorian of his high school class (though Rockefeller did not actually graduate). Laura Celestia â€Å"Cettie† Spelman, an assistant principal at the time of their marriage, was a college-educated daughter of a successful Cleveland businessman. Like her new husband, Cettie was also a devoted supporter of her church and like her parents, upheld the temperance and abolition movements. Rockefeller valued and often consulted his bright and independently-minded wife about business manners. Between 1866 and 1874, the couple had five children: Elizabeth (Bessie), Alice (who died in infancy), Alta, Edith, and John D. Rockefeller, Jr. With the family growing, Rockefeller bought a large house on Euclid Avenue in Cleveland, which became known as â€Å"Millionaire’s Row.† By 1880, they also purchased a summer home overlooking Lake Erie; Forest Hill, as it was called, became a favorite home of the Rockefellers. Four years later, because Rockefeller was doing more business in New York City and did not like being away from his family, the Rockefellers acquired yet another house. His wife and children would travel each fall to the city and stay for the winter months in the family’s large brownstone on West 54th Street. Later in life after the children were grown and grandchildren came, the Rockefellers built a house in Pocantico Hills, New York, a few miles north of Manhattan. They celebrated their golden anniversary there but during the following spring in 1915, Laura â€Å"Cettie† Rockefeller passed away at age 75. Media and Legal Woes John D. Rockefeller’s name had first been associated with ruthless business practices with the Cleveland Massacre, but after a 19-part serial exposà © by Ida Tarbell titled History of Standard Oil Company, started appearing in McClure’s Magazine in November 1902, his public reputation was proclaimed to be one of greed and corruption. Tarbell’s skillful narrative exposed all elements of the oil giant’s efforts to squash competition and of Standard Oil’s overbearing domination of the industry. The installments were later published as a book of the same name and quickly became a bestseller. With this spotlight on its business practices, the Standard Oil Trust was attacked by state and federal courts as well as by the media. In 1890, the Sherman Antitrust Act was passed as the first federal antitrust legislation to limit monopolies. Sixteen years later, the U.S. attorney general during President Teddy Roosevelt’s administration filed two dozen antitrust actions against large corporations; chief among  them was Standard Oil. It took five years, but in 1911, the U.S. Supreme Court upheld the lower court’s decision that ordered Standard Oil Trust to divest into 33 companies, which would function independently from each other. However, Rockefeller did not suffer. Because he was a major stockholder, his net worth grew exponentially with the dissolution and establishment of new business entities. Rockefeller as Philanthropist John D. Rockefeller was one of the wealthiest men in the world during his lifetime. Though a tycoon, he lived unpretentiously and kept a low social profile, rarely attending the theatre or other events typically attended by his peers. Since childhood, he had been trained to give to church and charity and Rockefeller had routinely done so. However, with a fortune believed to be worth more than a billion dollars after the dissolution of Standard Oil and a tarnished public image to rectify, John D. Rockefeller began to give away millions of dollars. In 1896, 57-year-old Rockefeller turned over the day-to-day leadership of Standard Oil, though he held the title of president until 1911, and began to focus on philanthropy. He had already contributed to the establishment of the University of Chicago in 1890, giving $35 million over the course of 20 years. While doing so, Rockefeller had acquired confidence in Rev. Frederick T. Gates, the director of the American Baptist Education Society, which established the university. With Gates as his investment manager and philanthropic adviser, John D. Rockefeller founded the Rockefeller Institute of Medical Research (now Rockefeller University) in New York in 1901. Within their laboratories, causes, cures, and various manners of prevention of diseases were discovered, including the cure for meningitis and the identification of DNA as the central genetic matter. A year later, Rockefeller established the General Education Board. In its 63 years of operation, it distributed $325 million to American schools and colleges. In 1909, Rockefeller launched a public health program in the effort to prevent and cure hookworm, a serious health issue in the southern states, through the Rockefeller Sanitary Commission. In 1913, Rockefeller created the Rockefeller Foundation, with his son John Jr. as president and Gates as a trustee, to foster the well-being of men and women around the world. In its first year, Rockefeller donated $100 million to the foundation, which has provided assistance to medical research and education, public health initiatives, scientific advancements, social research, the arts, and other fields around the world. A decade later, the Rockefeller Foundation was the largest grant-making foundation in the world and its founder deemed the most generous philanthropist in U.S. history. Death Along with donating his fortune, John D. Rockefeller spent his last years enjoying his children, grandchildren, and his hobby of landscaping and gardening. He was also an avid golfer. Rockefeller hoped to live to be a centenarian but died two years before the occasion on May 23, 1937. He was laid to rest between his beloved wife and mother at Lakeview Cemetery in Cleveland, Ohio. Legacy Though many Americans scorned Rockefeller for making his Standard Oil fortune through unscrupulous business tactics, its profits aided the world. Through John D. Rockefeller’s philanthropic endeavors, the oil titan educated and saved an untold number of lives and aided medical and scientific advancement. Rockefeller also forever changed the landscape of American business. Sources â€Å"John D. Rockefeller: The Ultimate Oil Man.† John D. Rockefeller: The Ultimate Oil Man.â€Å"John D. Rockefeller.† Biography.com, AE Networks Television, 16 Jan. 2019.The Rockefeller Archive Center.

Friday, November 22, 2019

How to Write an SEO Article †Part 1

How to Write an SEO Article – Part 1 How to Write an SEO Article Part 1 How to Write an SEO Article Part 1 By Colin In a recent article, A Freelance Writers Basic Guide to SEO, we had several requests asking how SEO knowledge can be used in practice, when writing articles. Naturally, we are only too happy to oblige. The methods I am going to talk about in this article have not been learnt in online courses, nor have they been taken from theory manuals you can download for a price on the Internet. Everything I am going to discuss has been gained from hard experience, both as a writer (over 10 years), and as an I.T. consultant (University degree and 18 years in the business). Is Writing an SEO Article Complicated? No. There are no magic formulas or weird science to SEO, and there’s no right or wrong way of doing things. There are guidelines, however, as you will discover in this two-part article. SEO writing is very much a matter of common sense, and the application of some very simple points that are based on the idea of well constructed articles, and well constructed websites. Surprised? Don’t be. Just read on. SEO writing is no more complicated than writing a standard article for a magazine, the only difference being, there are a couple of other factors to consider. But the basics are always the same, which is where I am going to kick this article off. Get The Basics Right Whether the article is for your own website or as part of a freelance writing contract, the most important thing to always remember when writing a Search Engine Optimised article, is to make it a GOOD article. By good article, I mean the article must be useful to the reader. It should provide them with a benefit they can visualise, or offer something of value to them that is applicable and relevant to their lives or businesses. It should be something they can relate to easily. There’s no point in writing a technically good SEO article, for it to be a load of nonsense to the reader. Not only will the website concerned lose a potential customer or lose out on traffic and advertising revenue, but the article will become a non-entity and be a complete waste of everyone’s time. If the article is no good to the reader, don’t expect it to be picked up or linked to by affiliates, link marketers, or any other medium that could have provided valuable promotion or marketing – all of which would have boosted the website’s rankings. Always remember to write for the HUMAN who will read the article at the end of the line, not the search engine algorithm that finds it. Get that right, and you are already half way there! Components of SEO Content An SEO article is made up of two distinct, but very important components: 1) it has to contain relevant and value added content 2) it has to be supported by good website infrastructure (the ‘techy bit’) As I have already mentioned, SEO article content must be topically relevant, and provide value to the reader. And as with a standard article on any conceivable subject that’s possible, it has to have a new angle, a good initial hook, and and it must be important to the reader. Writers of articles for all kinds of publication will tell you this; it’s what you learn on day 1 at freelance article writing school. What they might not tell you until much later, is that in an SEO article content must include certain keywords and keyphrases that are relevant to the topic, and the article context. These keywords and keyphrases must appear seamlessly in the article, and not disrupt the natural flow of the piece; they should ehnance it and be inconspicuous at the same time. I’ll cover the ‘techy bit’ in the part 2 of this article. Keywords and Keyphrases There’s no science to figuring out what keywords to use within the content of your article, so that they show up in search engine results. Forget about AdWords, keyword software, scientific algebrae, and costly training courses. In my opinion these are expensive sledgehammers being wielded to crack a nut,and in my experience, are only designed by people hoping to make a quick buck by taking advantage of what writers don’t know. Here’s what to do. Sit down with a notepad and pen, and write down all the words and phrases that could possibly relate to the subject/business interest you are writing about. Almost all of these will (or should) be getting used in the meta data of the web page, but this will probably not be of your concern anyway (this is also covered in the ‘techy bit’ in part 2). Some of the keywords you write down, can be used within the SEO article. For instance, I recently wrote an article for a website that is in the business of superior tourist accomodation in the Scottish Borders a bed and breakfast. The keywords and phrases I came up with were: â€Å"bed and breakfast†, â€Å"hotel†, â€Å"guest house†, â€Å"Scotland,† â€Å"Borders†, â€Å"tourism†, â€Å"accomodation†, â€Å"Scottish Tourist Industry†, etc. However, in most cases, especially if you have been hired to write an SEO article for a third party, it is more likely you will be given certain keywords to use within an article in advance. This is fine – they’ve done the brain storming for you – but however they came up with the words and phrases, it’s your job to write a quality article that has them embedded in the text. It’s not difficult, as you will see in part 2 of this article next week, when I look at applying the keywords and keyphrases, utilising hypertext links in text, keyword density, and web page optimisation (the ‘techy bit’). Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Freelance Writing category, check our popular posts, or choose a related post below:45 Synonyms for â€Å"Food†Does "Mr" Take a Period?Supervise vs. Monitor

Thursday, November 21, 2019

Research Paper Article Example | Topics and Well Written Essays - 1500 words

Research Paper - Article Example Congress’ objectives are largely represented by policies and legislation, but most of them are implemented by the public sector where the public manager belongs. Therefore, members of this provision are implementers of decisions or ideas envisioned by law makers; they are instruments of reform and progress in the sector. The legislative arm of the government has the desire to make public administration systems more effective and efficient. It is for this reason that it may introduce policies and laws designed to achieve this goal. Currently, new public reform, based on neoliberalism or market economies has been implemented in the US and several other European countries with varied reactions. In the US, managers in the public sector are expected to cut down on bureaucratic coordination and instead adopt market competition or coordination as they carry out their duties. Most elected representatives aim at minimizing government expenditure, and a number of them believe that the reform movement of the day (neoliberalism) can help them achieve this. Therefore, Congress’s convictions and aims affect how public managers carry out their work as they are expected to share these objectives, as well. Provision of quality public services is seen as something desirable by the legislative arm and the public manager’s job is how these abstract ideas can be actualized (Pollitt & Bouckaert, 2000). In essence, some advocates in the legislature believe that reduction in government growth is a positive attribute as this allows it to work within its financial limits. Public managers are in charge of actual spending within various federal agencies, so they are expected to make reasonable discretions when doing their work. The neoliberal reform movement currently implies a move towards privatization rather than too much dependence on

Tuesday, November 19, 2019

Search and Seizure Term Paper Example | Topics and Well Written Essays - 1250 words

Search and Seizure - Term Paper Example Failure to issue of a search warrant or the absence of a search warrant invalidates the evidence searched and therefore necessitates its exclusion as evidence against William. A search warrant is an issue signed by the judge or the magistrate that authorizes the police officers to conduct a search of a definite person, a definite object or material at a definite location and at a specified time. The search warrant will serve as the basis of what the police can search and seize in a person or a property through the specific descriptions indicated in the search warrant. If the search warrant only specifies to search the bedroom, the police cannot search the living room or the backyard for further evidence. Nor can they search for drugs if the search warrant specifies weapons. Over the years, the court has allowed a number of situations in which a search warrant is not essential. An example of this situation is called the emergency exception. For example, a police is in patrol, if the p olice hear an alarming shout from the resident while he is on duty, the police can enter the premises to search and arrest the suspect for spousal abuse or child abuse. But looking in William’s case, a warrantless search can only be valid and admissible if his consent of the search was asked, but it wasn’t, making this physical evidence excludable. This exclusion will not pertain to all evidences because there is a difference between the evidence collected from the Elli’s and Stevens’s townhouses. It is stated in the scenario that â€Å"Mrs. Stevens gives the police consent to search the house for any potential evidence that might identify her husband’s killer†. And it is stated above that a warrantless search can only be valid and admissible if the person in control of the premises consents to the search which Mrs. Stevens approved to. While in William’s case, there was no search warrant issued nor he gave his consent to the

Sunday, November 17, 2019

Stellar Restoration And Home Improvement To Fulfill Your Dreams And Satisfy Your Budget Essay Example for Free

Stellar Restoration And Home Improvement To Fulfill Your Dreams And Satisfy Your Budget Essay Our highly trained experts are available to help you increase the value, appeal and comfort of your home or to restore it to its former beauty after a fire, flood or other disaster. Plus, our prices are unbeatable in the market, so contact us now and start on your way to a more beautiful home. Remodeling Our contractors have decades of experience installing plumbing, wiring, heating, cooling and other critical features of any well-crafted home. Plus our extensive knowledge and skill will provide you with the highest quality workmanship in gutting out damaged and outdated structures, and installing stylish hardwood floors, tiling, and dry wall. We also specialize in the installation of bathroom and kitchen fixtures, such as pedestal sinks, hot tubs, baths, granite countertops, appliances and tiling which add a critical level of value to your home. Additions Our solid workmanship offers you the most reliable foundation work and the hardiest structures built with the strongest wood and concrete materials. We are experts at the construction and installation of fencing, iron bars, decks, carpeting, garage doors, driveways and much more. Plus, our in-house landscapers are specialists and will give your yard a lush, manicured and well-kept feel. Fire Damage Fire and smoke can ruin plumbing systems and affect your ability to restore your home on your own. We have the expertise to remove the effects of wet and dry smoke, protein and hard-to-remove soot. Plus, we have the knowledge that lets us pre-test to evaluate the extent to which restoration is possible so you don’t waste money. Water Damage The contractors we represent have the ability to help your home recover from water damage so that it looks like the disaster never occurred. We use the most powerful submersible or portable pumps, dehumidifiers, and anti-microbial agents to remove micro-organisms that might cause harm to you. Plus, we have the know-how to tackle even the toughest mold problem.

Thursday, November 14, 2019

Essay examples --

Addiction: Anabolic- Androgenic Steroids Anabolic steroids, technically known as anabolic-androgenic steroids, are drugs that are related to the cyclic steroid ring system and have similar effects to testosterone in the body. They increase protein within cells, especially in skeletal muscles. They address the development and maintenance of masculine characteristics such as the growth of the vocal cords, testicles and body hair. Anabolic steroids were first made in the 1930s, and are now used therapeutically in medicine to stimulate bone growth and appetite, induce male puberty and treat chronic wasting conditions; such as cancer and AIDS. The American College of Sports Medicine acknowledges that AAS, in the presence of adequate diet, can contribute to increases in body weight, often as lean mass increases and that the gains in muscular strength achieved through high-intensity exercise and proper diet can be additionally increased by the use of AAS in some individuals. Health risks can be produced by long-term use or excessive doses of anabolic steroids. These effects include harmful changes in cholesterol levels, acne, high blood pressure, liver damage, and dangerous changes in the structure of the left ventricle of the heart. Conditions pertaining to hormonal imbalances such as gynecomastia and testicular atrophy may also be caused by anabolic steroids. Ergogenic uses for anabolic steroids in sports, racing, and bodybuilding as performance-enhancing drugs are controversial because of their hostile effects and the potential to gain unfair advantage is considered cheating. Their use is referred to as doping and banned by all major sporting bodies. Mechanism of action The pharmacodynamics of anabolic steroids are unlike peptid... ...ses the production of red blood cells. Through a number of mechanisms anabolic steroids stimulate the formation of muscle cells and hence cause an increase in the size of skeletal muscles, leading to increased strength. The androgenic effects of AAS are numerous. Depending on the length of use, the side effects of the steroid can be irreversible. Processes affected include pubertal growth, sebaceous gland oil production, and sexuality. Some examples of effects are growth of the clitoris in females and the penis in male children, increased vocal cord size, increased libido, suppression of natural sex hormones, and impaired production of sperm. Effects on women include deepening of the voice, facial hair growth, and possibly a decrease in breast size. Men may develop an enlargement of breast tissue, known as gynecomastia, testicular atrophy, and a reduced sperm count.

Tuesday, November 12, 2019

English Departmnet Essay

APA REFERENCING WORKSHEET STUDENT HANDOUT (1) ? APA REREFRENCE LIST FOR BOOKS, ARTICLES FROM THE INTERENET, MAGAZINE AND THE NEWSPAPER. ? BOOKS: A. A book with one author: Last name of the author, First letter of the author s name. (Year of publication). The title of the book (Should be Italicized). The place of publication. Example: Author: Martine Stephen Title of the book: English Literature: A student guide Year of publication: 2000 Place of publication: Pearson Education, London Stephen, M. (2000). English Literature: A student guide. Pearson Education, London. M ( E L A s g P E L B. A book with two authors: Last name of the first author, First letter of the first name of the author. , & Last name of the second author, First letter of the first name of the author. (Year of publication). The title of the book (Should be Italicized). The place of publication. Example: Title of the book: Reason to write, strategies for success in academic writing Name of the authors: Robert F. Cohen and Judy L. Miller. 1 | P a g e ENGL1111/1222 MRS. UMAMA AL KALBANI ENGLISH DEPARTMNET IBRI COLLEGE OF APPLIED SCIENCEs Year of publication: 2003 Place of publication: Oxford University Press, New York Cohen, R. , & Miller, J. (2003). Reason to write, strategies for success in academic writing. R & M J ( R t w s f s i a w Oxford University Press, New York. U P N Y C. A book with three authors. The last name of the first author, The first letter of the first name of first the author. , The last name of the second author, The first letter of the first name of second the author. , & the last name of the third author, the first letter of the first name of the third author. (Year of publication). The title of the book (Should be Italicized). The place of publication. Example: Title of the book: Writing A college Workbook Name of authors: James A. W. Heffernan, John E. Lincoln and Cindy Moore. Year of publication: 2001 Place of Publication: USA ? Write the reference of the previous book using the provided information?__________________________________________________________________ __________________________________________________________________ __________________________________________________________________ ? ARTICLES FROM THE INTERENET: It is recommended that when you search for articles from the internet to select that articles that have authors and the year of that submission date of that article. Some students only write the website name of the source that they get from the internet in which it is not enough. You need to cite the article from the internet in the correct APA format. So in your search for articles from the internet you have to select articles that have authors and date of submission. The next possibility is to go for articles that are written by well-Â ­? known organizations such as educational, scientific, governmental or 2 | P a g e ENGL1111/1222 MRS. UMAMA AL KALBANI ENGLISH DEPARTMNET IBRI COLLEGE OF APPLIED SCIENCEs ministerial organization. The last choice is to go for articles that are writing by anonymous (No name of authors) or that may have no submission date. A. Article from the internet with one author: The last name of the author, The first letter of the first name of the author. (Submission date). Name of the article (Italicized). Retrieved month date, year, from the website. Example: The article name: The importance of the internet for teens. The author of the article: David Thelan Submission date: 2002 Website name: htt://4teachers. org/kidspeak/theland/index. shtml Retrieved Date: 3ed October 2011 Thelan, D. (2002). The importance of the internet for teens. Retrieved October 3ed, D ( T i o t i f t R O 3 2011, from htt://4teachers. org/kidspeak/theland/index. shtml. f h B. Article with two authors: The last name of the first author, The first letter of the first name of first the author. , & The last name of the second author, The first letter of the first name of second the author. (Submission date). Name of the article (Italicized). Retrieved month date, year, from the website. C. Article with three authors: The last name of the first author, The first letter of the first name of first the author. , The last name of the second author, The first letter of the first name of second the author. , & the last name of the third author, the first letter of the first name of the third author. (Submission date). Name of the article (Italicized). Retrieved month date, year, from the website. 3 | P a g e ENGL1111/1222 MRS. UMAMA AL KALBANI ENGLISH DEPARTMNET IBRI COLLEGE OF APPLIED SCIENCEs D. Article with no author and no sponsored organization: Anonymous (No author). (Submission date). Name of the article (Italicized). Retrieved month date, year, from the website. ? Write the APA reference for the following articles from the internet: Article One: Article name: Integration of students in the teaching process. Name of authors: Jorgen Erik Christensen and Kirsten Ribu Date of submission: July 23, 2006 Website name: http:// www.icee. usm. edu/icee/conference/icee2006/papers/3387. pdf Retrieved Date: 9th October 2010 Article two: Article name: Transcript of Andrew Rawsnley s interview with the Prime Minister (BBC Radio 4 s The Westminster Hour) The name of author: No author but this article is sponsored by BBC News UK Edition. Date of submission: 6th February 2005 Website name: http://news. bbc. co. uk/go/pr/fr/i/hi/programmes/the_westminster_hour/4241787. stm Retrieved Date: 25th May 2005 P a g e ENGL1111/1222 MRS. UMAMA AL KALBANI ENGLISH DEPARTMNET IBRI COLLEGE OF APPLIED SCIENCEs.

Saturday, November 9, 2019

Supply and Demand- a Case Study Milk Price

The market supply and demand curve above shows the milk price support problem. In order to solve the milk surpluses in the market, the government should take the steps to increase the market demand to the milk products by exploring overseas markets. For instance, the government should export the milk surpluses abroad. This would cut the cost of storage for milk products and encourages the local dairy farmers continue in dairy business. b. The small dairy farmers would prefer the proposal 4 because it benefits them the most through the buyout program.This program encourages small dairy farmers to switch from dairy business to another business. The rewards from government can be used as capital to start a new business. c. For consumers, they would prefer the proposal 2. Since the consumers are also the taxpayers, the dairy price support program is very costing to taxpayers. By eliminating the price support program, the consumers can enjoy the lower price of milk and the taxes to purcha se unsold milk products can used to support other domestics goods that would be more benefits the consumers. d.The member of Congress who is concern about the welfare of community will look with favor on the proposal 2. Since they investigated that the market for milk is a competitive market. Without the government intervention, the market equilibrium price for milk is set by the market demand and supply. For the benefits of consumers and taxpayers, they would enjoy a lower milk price than price floor. The problem of the farmers can be solved by increase the demand for dairy products, such as exports the milk surpluses abroad and promote the local brand of milk products to consumers. Question 2 a. When YED = 2,Income Elasticity of Demand, YED= Percentae change in quantity demandedPercentage change in income 2= ? Qd %12% ? Qd %=24 % The quantity demanded for personal computer increases 24% as the customer’s income have risen by 12%. So, in order to meet my current inventory to the increase of quantity demanded by 24%, the price of personal computer should be increased. When PED = 0. 5, Price Elasticity of Demand, PED= Percentage change in quantity demandedPercentage change in Price 0. 5= 24 %? Price % ? Price %=48 % ? The price of personal computer should be increase by 48% so that the quantity demanded will approximately equal my current inventory. . i. To determine the price elasticity of demand, PED= ? Qd %? Price % PED=4. 3 %0. 25/1. 25? 100 PED=4. 3 %20% PED=0. 125 ? When the price increased $0. 25 to $1. 50, an increase of 20%, the quantity demanded declined 4. 3%, the price elasticity of demand for subway rides is 0. 125. The elasticity is less than 1, so that the quantity demanded moves proportionately less than the price, demand is said to be inelastic. ii. Since the demand can be considered as the inelastic, the riders are less sensitive to the fare rises and there would probably because of no substitute way for riders in short period.Hence, th e Transit Authority’s revenue increases as the fare rises. iii. From the estimation, the demand for subway rides is inelastic in short run. The estimation might be unreliable because of the data gathered is only first month after the fare rises. After a longer period, the riders may choose not to use subway and find another way of transportation which is more economical to them. The switch of riders to substitute way of transportation means the quantity demanded for subway decreases. So, when the fare rises, the quantity demanded declines gradually, the price elasticity of demand would be higher and more elastic. . As a clever entrepreneur, it is important to measure how much the quantity demanded of a good responds to changes in consumer’s income. During the prosperity periods, the consumer’s income is higher, they would demand for normal goods and less demand for inferior goods. In periods of depression, the consumer’s income decreases leads to an incre ase of quantity demanded for inferior goods because their purchasing power is low. If the entrepreneur understands that inferior goods have negative income elasticity (Mankiw, 2007), he would probably switch his business to sell inferior goods.For example, a used-car seller who might sell branded luxury cars during prosperity periods. However, during depression periods, he might switch to sell low-cost cars in order to sustain his business. In conclusion, the statement is valid. Question 3 a. Diminishing returns to a single factor are observable in all production processes at some level of inputs. The ‘law of diminishing marginal productivity’ is defined as the marginal product of an input is the additional output generated by employing one more unit of the input, all other inputs held fixed.The extra output, or returns, to the single input diminish because all other inputs are held fixed. One of the factors is capital. For example, as the stock of capital rises, the ex tra output produced from an additional of capital falls (Mankiw, 2007). Returns to scale are different from the returns to a single factor. Returns to scale are proportional increases in all inputs. While each factor in production process generates diminishing returns, the output may more than double, less than double, or exactly double when all the inputs are doubled.The distinction again is that with returns to scale, all inputs are increased in the same proportion and no input is held fixed. b. In filling a vacant position, we should be concerned with the marginal product of the last worker hired because the marginal product measures the effect on output, or total product, of hiring another worker. It helps us to determine the revenue generated by hiring another worker and compared it to the cost of hiring another worker. This comparison shows that whether the hiring would help to increase the production.The point at which the average product begins to decline is the point where average product is equal to marginal product. Although adding more workers results in a further decline in average product, total product continues to increase, so it may still be advantageous to hire another worker. When average product declines, the marginal product of the last worker hired is lower than the average product of previously hired workers. c. The isoquant identifies all the combinations of the two inputs which can produce the same level of output. The curvature of the isoquant is measured by the slope of the isoquant at any given point.The slope of the isoquant measures the rate at which the two inputs can be exchanged and still keep output constant, and this rate is called the marginal rate of technical substitution. Along the typical â€Å"bowed-in† or convex isoquant, the marginal rate of technical substitution diminishes as you move down along the isoquant. SECTION B Question 4 a. To find the equilibrium price and quantity, Qd=Qs 100-5P=5P 10P=100 P=10 When P = 10, Q=5P Q=510 Q=5 ? Equilibrium price is $10, equilibrium quantity is 50 units Price of Negext, $ Market Equilibrium Quantity of Negext, Units 50 0 10 Supply Demand 20Consumer Surplus Producer Surplus Graph 2 The Negext Market Supply and Demand Consumer Surplus=12 ? $10 ? 50 =$ 250 Producer Surplus=12? $10 ? 50 =$ 250 Total Surplus=Consumer Surplus+Producer Surplus Total Surplus=$250+$250 =$ 500 ? The consumer surplus is $250, the producer surplus is $250 and total surplus is $500. b. When 50 units of Negext are produced, Total Cost of Pollution=50 ? 4 ? $1 =$ 200 The sellers would impose $4 for each units of Negext, so the price for Negext is $14. Total Surplus=$ 500-$200 =$ 300 ? The total surplus after taking into account the cost of pollution, it reduces to $ 300. . We can use total surplus to measure the welfare of buyers and sellers in Negext market. If the society banning Negext, no demand from buyers, Negext will run out of business, the society is not in economic well - being. Both buyers and sellers do not enjoy any welfare from banning. When the total surplus is zero, the total market welfare is zero as well. d. Under the government restriction, the market only can produce 25 units of Negext. (100 units of pollution ? 4 units of pollution are emitted each Negext is produced= 25 units of Negext can be produced) Qs=25 units 00-5 P=25 P=$ 15 ? The new market equilibrium when the quantity 25 units and price is $ 15. Since the minimum cost to produce one unit of Negext is $5 (assuming the cost of production per Negext is $1 and cost of pollution is $4), so the supply of Negext decreases to zero when the price falls below $5. Graph 3 shows the Negext market after the restriction. This restriction limits the production to 25units and the price rises to $15. The consumer surplus decreases to $62. 50, producer surplus is $312. 50, and pollution cost is $100. The total surplus falls $275.In short, this policy is not recommended because it reduces the tot al market welfare. Graph 3 The Negext Market Supply and Demand after the government restriction. Price of Negext, $ New Market Equilibrium Quantity of Negext, Units 0 Supply Demand 20 Producer Surplus 15 Consumer Surplus 25 5 Consumer Surplus=12? $5? 25 =$ 62. 50 Producer Surplus=12? ($10+$15)? 25 =$312. 50 Total Cost of Pollution=25 units Negext? 4 units pollution ? $1 =$ 100 Total Surplus=$ 62. 50+$312. 50-$100 =$275 e. The consumers and producers should bear the $2 tax respectively. Inverse Demand : P=18-15QInverse Supply :P=-2+15Q NEW Qd=90-5P NEW Qs=-10+5P Qd=Qs 90-5P=-10+5P P=10 Q=90-5(10) Q=40 units Refer to Graph 4, the market is in equilibrium when price is $10 and quantity, 40 units. However, the actual price paid by the consumers is $12 and the producers receiving price of $8. The tax revenue is $160. The consumer surplus is $160, producer surplus is $160, and total pollution cost is $160. The total surplus increases to $320. So, this policy is highly recommended because the increases of total market welfare that benefits all the society members.Graph 4 The Neget Market after government imposes tax. Price of Negext, $ Quantity of Negext, Units 40 0 10 Supply Demand 20 12 8 Tax Revenue=$4? 40 =$160 Consumer Surplus=12? $8? 40 =$160 Producer Surplus=12? $8? 40 =$160 Total Cost of Pollution=40? 4? $1 =$100 Total Surplus=$160+$160+$160-$160 =$320 f. When the cost of pollution is higher than $1, the total surplus decreases. The price paid by the consumer increases, the consumer surplus decreases. Then, it would affect the society well-being, especially the welfare of consumer is violated. This leads the consumers banning Negext.Moreover, if the production of Negext emit such high pollution to environment, the society should ban Negext for the safety and health of society. REFERENCES Smith, 2007. Chapter 6 answers (Online) Available From : http://www. coloradocollege. edu/Dept/EC/Faculty/Smith/EC2070102/chap_06answers. htm (Accessed : 16 July 2011) Wmich. Edu. 2010. Assignments In Class (Online) Available From : http://homepages. wmich. edu/~u5nwaogu/In%20Class%20Assignments/Inclass_3. pdf (Accessed : 16 July 2011) Mankiw, N. Gregory. (2007). Principles of Economics, 4th Edition. USA: Thomson South – Western. pp97-99, 559-562

Thursday, November 7, 2019

Responsibility Centers Financial Controls Essays

Responsibility Centers Financial Controls Essays Responsibility Centers Financial Controls Essay Responsibility Centers Financial Controls Essay Responsibility Centers Financial Controls Name: Institution: Lecturer: Course: Date: Responsibility Centers Financial Controls The purpose of this project essay is to put into consideration Deer Valley Lodge’s revamping project. The ski resort is considering its options in customizing its location with more lifts for its customers. My task was to determine the suitability and contrast between two tax approaches and if the revamping project would prove to be a positive or negative investment. Before Tax NPV From the calculations in the excel sheet, if the management decides to employ the pre tax NPV approach, this will prove to be a profitable method yielding 408,953 dollars after deducting all the expenses. Every business aims at making profit (Bhimani, 2008), this approach is a profitable investment, and thus the resort can implement it. After Tax NPV If Deer Valley Lodge management decides to implement this approach in their ski investment, my calculations suggest that they will harvest profits amounting 935,438$ dollars. If I compare the two methods of approaching this investment, I would advice the management of the company to implement the after tax NPV approach since it is more profitable (Bhimani, 2008). Subjective Factors In accordance with my calculations, one of the subjective factors that would affect this decision is the profits realized from food sales, equipment rent as well as other items customers would purchase from the resort. If the resort should provide additional facilities to complement its services, purchases made would therefore have significant contribution on the net profit. This project will ensure sufficient space for the resorts customers. This means that customers will be more satisfied with the service, and may turn up in larger numbers come the next period (Cadez, 2009). In addition, I also think conditions of the weather would have significant effect on the project. Poor weather would mean poor customer turnout and good weather conditions would attract more customers (Cadez, 2007). Reference Bhimani, A., Horngren, C. T., Datar, S. M., Foster, G. (2008). Management and cost accounting. Harlow [etc.: Financial Times Prentice Hall. Cadez, S., Guilding, C. (January 01, 2009). Strategy and strategic management accounting: An investigation of organizational configuration. Programme and Collected Abstracts. Cadez, S. (January 01, 2007). A configuration form of fit in management accounting contingency theory: An empirical investigation. The Business Review, Cambridge, 7, 2, 220-227.

Tuesday, November 5, 2019

Common Slang Words for Vagina

Common Slang Words for Vagina The vagina is, of course, the correct word to describe female genitals. But while vagina is the clinically correct term, squeamishness continues to surround the use of the word. In addition, discussion of genitals (male or female) is often considered racy or even obscene. These cultural issues have given rise to the development of an incredible  range of slang terms for the vagina. Some of these terms are essentially euphemisms- terms that are considered to be acceptable even in the mainstream media. Others are childish or silly, while still others are degrading or even downright disgusting. Cultural Stigma The use of the word vagina has always caused cultural controversy. Use of any terms related to sexuality (particularly female sexuality) has long been banned from network television. In 1972, comedian George Carlin created a now-famous monologue called  Seven Words You Can Never Say on Television. Carlins intent was to illustrate how refusal to use words gives them power. As he said in an NPR interview in 2004: These words have no power. We give them this power by refusing to be free and easy with them. We give them great power over us. They really, in themselves, have no power. Its the thrust of the sentence that makes them either good or bad. While some discomfort over the use of sexual terminology has eased up with the rise of cable and streaming media, our cultural squeamishness has not disappeared.   In previous generations, children (particularly girls) have been encouraged to use nicer words such as peach, flower, or kitty, but with increased awareness of child sexual abuse nearly all educational experts stress that children be taught the correct word vagina and other body parts. Commonly Used Terms for Vagina Below is a breakdown of the most commonly used terms and slang for vagina; the categories are somewhat arbitrary. The meaning of each slang word is the same, but its implications vary depending not only on the term itself but also on the way in which it is used. Slang Words (Single Words) vajayjay vag twat slit snatch cooch coochie cooter cooze coozie gash hole muff flange minge box quim pocketbook poon poontang purse fud (Scottish term) Polite Slang Phrases (Two or More Words) nether regions lady garden girly bits private parts Slang Phrases (Two or More Words) mossy cleft hot box squeezebox vertical smile cha cha love tunnel Food-Related Slang cherry bearded clam furry taco tuna taco fur burger cream pie beef curtains meat curtains meat sleeve hair pie honey pot Animal-Related Slang beaver pussy kitty rat panty hamster Words Used by (or Around) Children privates private parts bits down there peach flower kitty tutu wee wee no no cookie muffin cupcake tweeny (between legs) fanny (used in the UK, Australia, and New Zealand) front butt who hoo/woohoo hoo hoo foo foo

Sunday, November 3, 2019

Analysis of Visual Text (Film) Thesis Example | Topics and Well Written Essays - 1250 words - 1

Analysis of Visual Text (Film) - Thesis Example In addition, these early childhood attachments significantly influence the relational development of their internal representations of the self and other relationships between the parents and children as well (Craissati, McClurg, & Browne, 2002, pp.910). With this close understanding, parents become in a position to fulfill their parental obligations in a more appropriate way throughout the different stages of childhood and adolescence and till the point where children reaching to age where they become self sufficient to take their personal decisions more appropriately and responsibly. However, before reaching to the more mature stage, which is normally considered as the mark depicting 18 years, the road to that mark brings a considerable number of challenges not only for parents towards the nourishment of their children but also to the children and adolescence. As a result, parents are required not only to fulfill their developmental needs but also they are required to understand th eir emotional tendency and protecting them in case if they are emotionally misused by others (thesis statement). This movie is based on a story of a teen girl who becomes victim to an online sexual predator. This movie was released on April 1, 2011 and is directed by David Schwimmer. It has four basic characters- Annie (Liana Liberato), Charlie (Chris Henry Coffey), Will (Clive Owen) and Lynn (Catherine Keener). Annie is a 14-year-old girl and Will and Lynn have played the role of father and mother respectively in the film and, Charlie who plays a role of online sexual predator. Annie is a school going shy girl. Having less friendship in the school, she meets Charlie through a social networking website. Initially, Charlie convinces Annie that he is 16. Later he admits that being in his mid- 20s. Charlie uses different emotional tricks and tries to win

Thursday, October 31, 2019

Godfather I by Francis Ford Coppola Essay Example | Topics and Well Written Essays - 1250 words

Godfather I by Francis Ford Coppola - Essay Example In the opening scene where a person is asking for justice, not from the law but from a compatriot, sets the tenor of the film. ‘Why did you go to the police? Why didn’t you come to me first?’(Vito Corleone) subtly illustrates the disillusions of an immigrant about the law and justice of the country and how he is forced to adopt other ‘means’ to get the same. Godfather is a film which revolves around an Italian-American family which operates a crime syndicate in New York in mid-forties. Vito Corleone, the patriarchal head of one of the five ’family’ involved in the crime syndicate, is the protagonist of the film. He often works beyond the realm of law because he has powerful contacts in the political arena and the judiciary. Despite exerting awesome influence and muscle power, he has a very strong sense of justice and commands great respect from people who do not hesitate to ask for his help when the law fails to do so! He becomes their ‘protector’ when the need arises so he is better known as ‘the godfather’. The only return for his good deed is their loyalty which he gets. His portrayal of a deeply religious family man reinforces people’s trust in him. His firm belief that family can alleviate a lot of pain and anguish is amply illustrated when he admonishes his godson Johnny Fontane, a sin ger, in his study as he says ‘..cause a man who doesn’t spend time with his family can never be a real man’. Indeed â€Å".The Godfather puts forward a positive picture of a family†¦Ã¢â‚¬  (Glenn Man in genre and ideology) The introduction of the youngest son Michael during the wedding reception heralds amalgamation of American values and Italian culture. The educated younger son, who has just returned from the war, comes with his girlfriend. His statement that ‘my father made him an offer he couldn’t refuse’ went on to become one the most famous one-liner in the history of Hollywood films.

Tuesday, October 29, 2019

Clinical Depression Overview Research Proposal Example | Topics and Well Written Essays - 1250 words

Clinical Depression Overview - Research Proposal Example When depression strikes, a person will not only feel down, it may affect his ability to function normally in society, and in some extreme cases, it provokes the person to commit suicide. Being the most common mental disorder in the United States, depression affects over 17 million Americans each year ("Understanding Depression"). With these, depression is obviously a serious condition that should on no account be ignored. In identifying depression, certain factors such as gender, age, and culture should be taken into account. The manifestations of depression in different people are likely to vary in accordance with the aforementioned factors (Smith, R. Segal, and J. Segal). For instance, an elderly man would most probably exhibit different signs and symptoms of depression from a teenage girl. However, there are common signs and symptoms that we can watch out for. These signs and symptoms can be categorized into those involving the person's mood, his thinking, his behavior and physical manifestations ("Depression - Types, Causes and Symptoms"). Symptoms that involve the person's mood include feelings of sadness, hopelessness, helplessness, numbness, emptiness, anxiousness, and guilt. People who are depressed find it hard to enjoy and feel good about things that they used to do normally ("Depression - Types, Causes and Symptoms"). A depresse...People suffering from depression also find it difficult to think clearly and they have poor concentration and memory ("Depression - Types, Causes and Symptoms"). In some cases, as earlier mentioned, depressed people have suicidal thoughts and some actually attempt to kill themselves.

Sunday, October 27, 2019

Analysis of One-step Self-etch Adhesive Systems

Analysis of One-step Self-etch Adhesive Systems Abstract: Purpose: To evaluate the performance of two types of one-step self-etch adhesive systems and one type of two-step etch-and-rinse (as a control) by examining the resin-dentin interface and assessing the nano-leakage. Materials and Methods: Cervical class V cavities were prepared in 30 sound human premolars. Two types of one-step self-etch adhesive, G-Bond (GB) and Adper Prompt L-Pop(APL), and one type of two-step etch-and-rinse adhesive, Excite (Ex), were used to bond the composite restorations. The restored teeth were incubated in water at 37ÂÂ ±1 oC for 24 h. Fifteen were subjected to further immersion in 50% ammoniacal silver nitrate solution for 24 h and soaked in photo-developing solution for 8 h. All teeth were sectioned across the bonding surface in bucco-lingual direction. The cut surfaces were polished, followed by 6N HCL application for 45s. All surfaces were metal coated before conducting the ultra-morphological observation, using the Field Emission Scanning Electron Microscope (FE-SEM), to characterize the hybrid layer and evaluate the nanoleakage. Results: A significant difference in the thickness of the hybrid layer was evident between all adhesive systems (ANOVA, p Conclusion: GB provides a nano-interaction layer at the dentin/adhesive interface that seems to play an important role in minimizing the degree of associated nanoleakage. Keywords:Â  Dentin adhesive, interface characterization, nano-leakag, one-step adhesives Introduction Although gap-free margins at the dentin/restoration interface could be achieved with some adhesive systems utilizing the total-etch technique, Sano et al., have described another pattern of leakage, by observing the penetration of silver nitrate along gap-free margins by the aid of either scanning (SEM) or transmission electron microscopy (TEM). Since leakage was found to occur within the nanometer-sized spaces around the collagen fibrils within the hybrid layer, it has been termed nano-leakage[1-5]. The nano-leakage usually represents permeation laterally through the hybrid layer and could be the result of the incomplete infiltration of adhesive resin into the demineralized dentin[3]. This kind of leakage may also allow the penetration of bacterial products or oral fluids along the interface, which may result in hydrolytic breakdown of either the adhesive resin or collagen within the hybrid layer, thereby compromising the stability of the resin-dentin bond[5]. In spite of the technique-associated difficulties, previous studies indicated the efficiency of 50% silver nitrate solution in detecting nano-leakage within the hybrid layer[3,6,7]. However, the acidity of that solution (pH = 3.4-4.5), during long time immersion could induce demineralization around the edges of the restorations, particularly into the partially-demineralized dentin, leading to false positive results[7-9]. The modified silver-staining technique was recently suggested to overcome the drawback of silver nitrate solution. It utilizes 50 wt% ammoniacal silver nitrate having pH measured at 9.5 aiming to eliminate the possibility of dentin dissolution at the hybrid layer[10]. Although the nano-leakage for various adhesive systems and its influence on bond strength have been evaluated in previous studies[11,12]. As well as the effect of different parameters as thermo-cycling and etching time on nano-leakage, this in vitro study aimed to evaluate the thickness of the interaction layer and nano-leakage of 2 types of one-step adhesive systems and one type of two-step etch-and-rinse (as a control)[8,13]. The null hypothesis tested was that the one-step adhesive system (G-Bond) might offer better adhesion to cavity walls via formation of a nano-interaction zone instead of the traditional hybrid layer. Materials and Methods Thirty sound freshly extracted premolars of patients indicated for orthodontic treatment were collected. The collected teeth were cleaned using the Pro-sonic 300 MTH (Sultan Chemists, Englewood, NJ, USA), and examined to ensure the absence of cracks using a binocular microscope at 20x magnification (Olympus Co., Tokyo, Japan). The selected teeth were stored in deionized water that contained antibacterial agent (0.2% sodium azide) for a maximum of 1 month[14]. Using No. 330 bur (Brasseler USA, Savannah, GA, USA) at high speed with copious air/water spray, standardized 2 mm deep class V cavities were prepared at the buccal surfaces 0.5 mm coronal to the cement-enamel junction of all teeth. The prepared margins were all placed in enamel. A metal, buccal-fitted, index was used to guide the external cavity outlines and a rubber stopper hanged to the burs shank has aided in determining the accurate cavity depth. All the prepared cavities were thoroughly rinsed with water and air-dried before receiving the composite restorations. Table1.shows the description and manufacturers of materials used in this study. Two one-step, self-etch (G-Bond); and (Adper Prompt L-Pop) adhesive systems were used to retain the Tetric Ceram hybrid composite restorations. In addition, 1 two-step, etch-and-rinse (Excite) adhesive system was also selected to serve as control (n= 10 cavities for each). The self-etch adhesive systems were applied to the prepared cavities and left for 10s before air thinning. Curing of both self-etching adhesives was performed by the use of a light-curing device (Hawe-Neos, Gentilino, Switzerland) for 10s. The dentin surfaces of control cavities were etched with 37% phosphoric acid (Ivoclar-Vivadent) for 15s, washed under copious air-water spray, then the excess water was removed by blotting with a tissue paper leaving the dentin visibly moist. The Excite adhesive was then applied using a brush for 10s and light-cured for 20s after air-drying of the excess material. The cavities were then filled with composite, and cured for 40s before finishing using 1000-grit abrasive paper (SAIT AC Abrasive, Torino, Italy) in presence of water-cooling. The restored teeth were incubated in distilled water at 37ÂÂ ±1ÂÂ °C for 24 h before sectioning and testing have taken place. Assessing the dentin/adhesive interface Five premolars from each group were half-sectioned bucco-lingually across the bonding surface with a low-speed diamond saw (model 650, South Bay Technology Inc., CA, USA). The cut surfaces were then lightly finished using a sequence of 600, 800, and 1000-grit abrasive papers (SAITAC Abrasive) in presence of water-cooling followed with light polishing with diamond paste. The samples were then immersed in 6N (mol/L) HCL for 45 seconds then rinsed with distilled water and dried for 24 h at 37ÂÂ °C (Binder Incubator, Type B28, Tuttlingen, Germany). The dried samples were sputter coated with gold-palladium (JEOL, JFC, 1100e, Tokyo, Japan.) The dentin/adhesive interface of each sample was then examined using a field emission scanning electron microscope (FE-SEM) at 30 KV (JEOL, JSM, 5600LV, Tokyo, Japan)[14]. The thickness of interaction layer was measured in micrometer using a standard microscale calibrated FE-SEM Evaluating the nano-leakage The root apices of the remaining five teeth of each group were covered with sticky wax (Dentsply DeTrey, Bois Colombes, France), while their entire surfaces were coated with two layers of nail varnish except for the cervical margin of the restored cavity and 1 mm around. A modified silver staining technique, was used with basic 50wt% ammoniacal silver nitrate (pH=9.5)[15]. The chemical reagents from which the staining solution was prepared are listed in (table 1). The solution was freshly prepared by dissolving 25 g of silver nitrate crystals in 25 ml of distilled water. Concentrated (28%) ammonium hydroxide was used to titrate the black solution until it became clear as ammonium ions complexed the silver into diamine silver ([Ag(NH3)2]+) ions. This solution was diluted to 50 ml with distilled water to achieve a 50wt% solution. The teeth were immediately immersed into the freshly-prepared ammoniacal silver nitrate solution in total darkness for 24 h, followed by thorough rinsing with running distilled water for 5 min. The stained teeth were then placed in a photo developing solution for 8 h under fluorescent light to reduce the diamine silver ions into metallic silver grains within the voids along the bonded interfaces[2,3]. After removal from the developing solution, the teeth were placed under running distilled water for 5 more minutes. The stained teeth were then sectioned and their cut surfaces were finished, polished and acid-treated foll owing the previously mentioned conditions. The measurements of silver penetration were calculated directly on the SEM monitor, using a multi-point measuring device, observing all the internal cavity margin lengths, in steps of approximately 100 ÂÂ µm[6]. The leakage values were expressed as the sum of the cavity margin lengths showing silver deposition. A comparison between these lengths among the three adhesive systems was possible since the dimensions of all cavities were standardized as mentioned before. Statistical analysis The data were statistically analyzed using SPSS statistical package version 10. The data were examined for normal distribution using Kolmogorov-Smirnov test. One way analysis of variance ANOVA was used to compare the values of the three groups. The Tukeys post hoc analysis was used to confirm the significance of differences detected between the test groups and the control. The test was considered significant when p Results SEM images representing the adhesive/dentin (A/D) interfaces (Fig 1-3) revealed a variation in the thickness of the detected interaction layers between the tested adhesive systems. ANOVA indicated significant differences between thickness of interaction layers of tested adhesives (p These differences were confirmed among the mean values of Ex and GB (Tukeys comparison, p Penetration of silver along the cavity walls was observed in all samples. (Fig.4-6). Table 3 summarizes the results of nanoleakage testing. ANOVA indicated significant differences between the mean values of the sum of the cavity margin lengths showing silver deposition in the tested adhesive systems (p Discussion Fear of bacterial ingress at the restoration/tooth interface and the subsequent caries recurrence has pushed the interest of researchers to assess the adaptation and adhesion of restorative materials against tooth cavity walls. Several studies, had the concern to evaluate the source of adhesive-dentin bond through assessing the interface characterization[2,16,17]. In vitro study, it is evident that the G-Bond created a thinner interaction zone in comparison to those formed with other adhesives (Figs1-3). Both the Ex and APL formed traditional hybrid layers as a result of resin infiltration within the demineralized dentin through the collagen fibrils. However, the demineralization in case of Ex seems to be more deep as a result of longer time of acid contact (30s). This assumption could explain the formation of the thicker hybrid layer[17] [17]. The interface formed by GB looks different as the surface of dentin is decalcified only slightly and there is almost no exposure of collagen fibrils. This suggest that functional monomers contained in the bonding material react with hydroxyapatite to form insoluble calcium, forming a thin transitional zone that could be measured in nanometers, so it could be termed a nano-interaction zone with the ability to reduce the risk of bond deterioration[18,19]. Moreover, evaluating the microleakage and recently the nanoleakage represent important means of assessing the defective adaptation of materials[20]. Although the use of silver nitrate dye was effective in detecting the nanoleakage, this in vitro study used the ammoniacal silver nitrate dye because of its efficiency doing the same job and to eliminate the drawback of the regular silver nitrate deminerlizing the dentin[3,4,10,15]. SEM images (Figures 4-6) indicated the presence of nanoleakage in all samples bonded with different systems as manifested by the infiltration of silver ions at the adhesive/dentine interface and in some instances around the collagen fibrils. These findings could be attributed to the effect of resin contraction at the time of its polymerization[21]. In addition, the improper wetting of the resin to dentin and collagen surfaces could exist as a result of the wet nature of dentin tissues and bonding resin viscosity[22]. The previously nominated factors could create nanogaps between the bonding resin and dentin surfaces. Confirming the same assumption, other researchers have related the occurrence of nanolekage to the presence of areas of imperfect resin infiltration, retained water or other solvent, poor polymerization, or phase separation[22,23]. On the other hand, various degrees of silver penetration and brightness were evident between samples of different groups indicating different degrees of nanoleakage. This result could be related to the chemical nature of the adhesive systems themselves that is reflected on the expected degree of polymerization shrinkage and the degree of water sorption (dye solution). The recently-marketed adhesive system, G-Bond, includes water and organic solvents in its chemical formula to improve resin infiltration within the wet dentin substrate, as well as nanofiller particles to reduce the extent of polymerization contraction[24]. A study by Pashley EL et al., stated that when HEMA is included as a polymerizable solvent for resin monomers, residual water may persist during evaporation as a result of lowering the vapor pressure of water by HEMA[25]. In previously published TEM observations, pure polymerized HEMA permitted extensive silver impregnation. The authors stated that when HEMA is copolymerized with other resin monomers in the presence of water, it could form hydrogel in the hybrid layer, resulting in additional silver filled patterns in the interfacial layer. In the present study, both APL and Ex. contain HEMA and water which could be the reason of the higher degree of nanoleakage. However the presence of alcohol solvent in the Ex formulation could improve the resin infiltration and accordingly reduces the degree of nanoleakage in comparison to the solvent-free adhesive APL[22,26]. Conclusion Within the limitation of this study, the hypothesis that G-Bond adhesive system can offer better adhesion to cavity walls is acceptable. The formation of a nano-interaction layer seems to play an important role in minimizing the degree of nanoleakage at the bonding interface Clinical relevance: Using the G-Bond adhesive system for bonding composite restorations can minimize the expected degree of nanoleakage and accordingly could reduce the possibility of the future caries recurrence. Figures: Fig (1): SEM image of the interface bonded with G-Bond. The area shown by arrows, between the cured adhesive layer (A) and the dentin (D), is the very thin interaction (hybrid) layer. The electron density in this area is higher than that found with other adhesives. C= composite resin, A= adhesive; D= dentin Fig (2): SEM image of the interface bonded with Adper Prompt L-Pop. The area shown by arrows, between the cured adhesive layer (A) and the dentin (D), is distinct (hybrid) layer with a uniform thickness than that with G-Bond. The funnel shaped configuration of the resin tags is visible, which is resulted by removal of the highly mineralized peri-tubular dentin. C= composite resin, A= adhesive; D= dentin Fig (3) SEM image of the interface bonded with Excite. The area shown by arrows, between the cured adhesive layer (A) and the dentin (D), is distinct (hybrid) layer with a uniform thickness than that with G-Bond. The funnel shaped configuration of the resin tags is visible, which is resulted by removal of the highly mineralized peri-tubular dentin. C= composite resin, A= adhesive; D= dentin Fig (4): SEM image of the interface bonded with G-Bond showing minimal silver deposition in the form of a small distinct localized area (arrows) C= composite resin, A= adhesive; D= dentin Fig (5): SEM image of the interface bonded with Adper Prompt L-Pop showing greater and more intense silver deposition in the form of a small distinct localized area (arrows) when compared to G-Bond ( Fig 4) and Excite (Fig 6) C= composite resin, A= adhesive; D= dentin Fig (6) SEM image of the interface bonded with Excite. The silver deposition presented a less intense pattern when compared to Adper Prompt L-Pop (Fig 5). It was less continuing in the form of a dashed line(arrows) . The silver deposits were mostly located at the base of hybrid layer, but were sometimes also observed at the top. C= composite resin, A= adhesive; D= dentin Tables: Table (1): Materials used in the study:- Categories Materials Description Composition Manufacturer I- Adhesive systems 1. G-Bond (GB) Self-etch one step no mix adhesive Phosphoric acid ester monomer, UDMA, 4-MET, TEGDMA, Acetone, Water, initiators. GC America, St.Alxip. IL, USA. 2. Adper Prompt L-Pop (APL) Self-etch one step no mix adhesive Compartment 1: Methacrylated phosphoric acid esters, photo-initiator, Stabilizers Compartment 2: Water, HEMA, Polyalkenoic acid, Stabilizers 3M ESPE Dental Products, St. Paul, MN, USA. 3. Excite (Ex) Etch and rinse adhesive HEMA,DMA,Phosphoric acid acrylate, highly dispersed silicon dioxide,initiators and Stabilizers in alcohol solution. Ivoclar Vivadent Schaan, Liechtenstien. II- Restorative Materials 1. Tetric Ceram Light curing, fine particle hybrid resin composite BisGMA, UDMA, TEGDMA, Ytterbium trifluoride, Barium glass pigments and initiators. Ivoclar Vivadent III- Chemical reagents 1. Silver nitrate crystals Sigma Chemical Co.St. Louis. MO. USA 28% Ammonium hydroxide solution Table 2: Means and standard deviations of thickness of the interaction layer (ÂÂ µm) in tested adhesive systems Adhesive system Means SD 95% confidence intervals ANOVA P-Value Turkeys P-Value G-Bond (GB) 0.75 ÂÂ ± 0.16 0.49 1.00 Ë‚ 0.000 P1 Ë‚ 0.001 APL 1.65 ÂÂ ± 0.23 1.56 1.95 Ë‚ 0.000 P2 Ë‚ 0.05 Ex (control) 2.22 ÂÂ ± 0.23 1.53 2.50 Ë‚ 0.000 P1 Ë‚ 0.000 P1 : Turkeys comparison among the means of GB and APL. P2 : Turkeys comparison among the means of APL and Ex. P3 : Turkeys comparison among the means of GB and Ex. Table 3: Means and standard deviations of the sum of cavity margin lengths (ÂÂ µm) showing silver deposition in tested adhesive systems Adhesive system Means SD 95% confidence intervals ANOVA P-Value Turkeys P-Value G-Bond (GB) 12.70 ÂÂ ± 3.27 8.76 16.64 Ë‚ 0.001 P1 Ë‚ 0.002 APL 37.34 ÂÂ ± 6.56 28.83 45.85 Ë‚ 0.001 P2 Ë‚ 0.05 Ex (control) 20.74 ÂÂ ± 5.09 14.49 26.99 Ë‚ 0.001 P1 ˃ 0.05 P1 : Turkeys comparison among the means of GB and APL. P2 : Turkeys comparison among the means of APL and Ex. P3 : Turkeys comparison among the means of GB and Ex.