Energy Saving Compact Fluorescent Light Bulb Environmental Sciences Essay

Energy Saving Compact Fluorescent Light Bulb Environmental Sciences Essay The Carbon Trust Applied Research and Incubator schemes has over the years through their Low Carbon Technology Assessment given a clear indication of their technology priorities and this have been determined on the basis of the carbon saving potential of each technology and the extent to which the Carbon Trust support is likely to have a significant impact on progress towards its commercial deployment. This they do considering the increasing amount of carbon pollution in the environment which has led to a pile up of Greenhouse Gas (GHG) and has made climate change a great concern for the entire world. According to the Pew Centre (2011) nearly all of the greenhouse gas (GHG) emissions from the residential and commercial sectors can be attributed to energy use in buildings and lighting accounts for about 11% of energy use in residential buildings and 18% in commercial buildings, which means it uses the second largest amount of energy in buildings after heating, ventilation, and air conditioning (HVAC) systems. Thus adjustments to lighting systems can be straightforward and achieve substantial cost savings consequently; addressing lighting can be a simple way to reduce a buildings energy use and related GHG in a cost-effective manner. This can be achieved according to the Pew Centre (2011) in two ways: Conservation; through minimizing the amount of time lights are in use; Efficiency; improvements that reduce the amount of energy used to light a given space, generally using a more efficient lighting technology. Lighting is a large and rapidly growing source of energy demand and greenhouse gas emissions. In 2005 grid-based electricity consumption for lighting was 2650 TWh worldwide, which was about 19% of the total global electricity consumption. Furthermore, each year 55 billion litres of gasoline and diesel are used to operate vehicle lights. More than one-quarter of the population of the world uses liquid fuel (kerosene oil) to provide lighting (IEA 2006). Global electricity consumption for lighting is distributed approximately 28% to the residential sector, 48% to the service sector, 16% to the industrial sector, and 8% to street and other lighting. In the industrialized countries, national electricity consumption for lighting ranges from 5% to 15%, on the other hand, in developing countries the value can be as high as 86% of the total electricity use (Mills 2002). More efficient use of the energy used for lighting would limit the rate of increase of electric power consumption, reduce the economic and social costs resulting from the construction of new generating capacity, and reduce the emissions of greenhouse gases and other pollutants into the environment. At the moment fluorescent lamps dominate in office lighting. In domestic lighting the dominant light source is still the inefficient incandescent lamp, which is more than a century old. At the moment, important factors concerning lighting are energy efficiency, daylight use, individual control of light, quality of light, emissions during the life-cycle, and total costs. Efficient lighting has been found in several studies to be a cost effective way to reduce CO2 emissions. The Intergovernmental Panel on Climate Change for non-residential buildings concluded that energy efficient lighting is one of the measures covering the largest potential and also providing the cheapest mitigation options. Among the measures that have potential for CO2 reduction in buildings, energy efficient lighting comes first largest in developing countries, second largest in countries with their economies in transition, and third largest in the industrialized countries (ÃÅ"rge-Vorsatz, Novikova Levine 2008). The report by McKinsey (McKinsey 2008) shows the cost-effectiveness of lighting systems in reducing CO2 emissions; see Figure 1.1. The global carbon abatement cost curve provides a map of the worlds abatement opportunities ranked from the least-cost to the highest-cost options. This cost curve shows the steps that can be taken with technologies that either are available today or look very likely to become available in the near future. The width of the bars indicates the amount of CO2 emissions that we could abate while the height shows the cost per ton abated. The lowest-cost opportunities appear on the left of the graph. Capture1.PNG Figure1.1- Costs of different CO2 abatement opportunities. (McKinsey 2008) The background above shows clearly that it is not possible to make a decision in one question without considering the others. A holistic view takes into account all energy flows in the building over time in order to reach a sustainable approach (Diemer, 2008). In order to build high performance buildings (WBDG, 2008) we have to consider all the different design processes and aspects of buildings (see figure 1.2) and how buildings are used by owners and users. Capture3.PNG Figure 1.2- Global objectives for High Performance Buildings. (WBDG, 2008) INTRODUCTION According to Pew Centre (2011) lighting accounts for about 11% of energy use in residential buildings and 18% in commercial buildings, thus the need to conserve light use and adopt more efficient technologies can yield substantial savings. In addition to that it can also reduce greenhouse gas emissions and give benefits like better reading and working conditions as well as reduced light pollution. Carbon emission through the greenhouse gas effect remains the singular problem the whole world is facing due to the increased use of fossil fuels and use of traditional technologies in lightings at homes or in commercial buildings, as well as many buildings still remaining brown instead of going green. In order to achieve the reduction of carbon in the earths atmosphere as well as other greenhouse gases a lot of industries have sprung up in the clean or renewable energy sector. One of those elements of the industry according to the US Department for Energy (2012) is the energy efficiency sector, which may not seem flashy or significant at first glance but is quietly spurring innovation while cutting costs and saving jobs across the country as more industry leaders are turning to innovative energy efficiency techniques to reduce energy bills and produce affordable products. New lighting technologies are many times more efficient than traditional technologies such as incandescent bulbs and switching to newer technologies can result in substantial net energy use reduction, and associated reductions in greenhouse gas emissions. The US Department of Energy in a study in 2008 revealed that using light emitting diodes (LEDs) for niche purposes in which it is currently feasible would save enough electricity to equal the output of 27 coal power plants. This project would give a description on researches on different lighting efficiency methods which can be used in Carbon emission reduction and energy conservation, as well as also help commercial firms cut costs so that they are able to produce affordable products and also help save more jobs in the present economic recession still biting most firms in top industrialised countries of the world. COMPANY PROFILE ABOUT US APASI ENERGY COMPANY LIMITED is a global leader in renewable energy solution, the company was established in 1993 with its specialization in Lighting Efficiency Solutions and Technology. Having been in operation in Edinburgh(UK) and most countries in Europe for the past 20years, and conducts researches that span over green technologies like power engineering, lighting technology, environment pollution and management, and more recently carbon technology. The company offers the most suitable environmental strategy to meet specific environmental, comfort, energy and cost criteria. Using computational methods backed by our practical, performance-based approach we can assess various options of environmental strategies giving greater flexibility to architectural design. Areas of expertise include: Environmental faà §ade design and optimisation analyse performance of faà §ade options including heat transfer, solar gains, day-lighting, and ventilation. Low energy building design assess different designs including advice on building form and natural ventilation strategies to aid the passive low energy design. Renewable and low carbon technologies investigate alternative technologies that best suit the project needs, including faà §ade integrated low carbon solutions. Since the commencement of business, our shareholders have undertaken a substantial programme of investment in order to enable the company to meet the rapidly developing needs for energy utilization through lighting technology, with all emphasis in technological innovation and total efficiency, we have maximised the environmental and economic performance of our resources, which has made us excel in the energy market and meet our customers needs. TECHNOLOGY OVERVIEW Lighting according represents at times up to 25% of home electrical use and it can affect the way one feels, work and interact with others. It helps accomplish everyday tasks and it is also a significant part of ones monthly utility bill. Efficient lighting would thus come in useful since it is a form of science as well as an art, despite the fact that most people still use the incandescent bulb, a technology invented some 100 years ago by Thomas Edison. Since lighting thus plays an important part in home electrical use and carbon emission from residential and commercial buildings, increasing ones lighting efficiency is thus one of the easiest and fastest ways to lower energy bills (http://www.energy.ca.gov/efficiency/lighting/). Lighting or Energy efficiency can thus be defined as the optimisation of energy consumption, with no sacrifice in lighting quality. It is a combination of thoughtful design and selection of appropriate lamp, luminaire and control system selection made in conjunction with informed choices of the illumination level required, integration and awareness of the environment or space which is being lit (http://www.energyrating.gov.au/wp-content/uploads/2011/02/2009-ref-manual-lighting.pdf). LIGHTING EFFICIENCY METHODS This part of the proposal would mention the popular ways to reduce the amount of energy consumed by lighting systems and the following discussed options give a range of conservation options that can reduce the use of artificial lighting (source: Pew Centre, 2011) : Behavioural Change This would mean a change in attitude of energy users whether in residential and commercial buildings. Turning off lights when they are not being used reduces energy use, greenhouse gas (GHG) emissions from electricity, and utility bills. It may include turning off lights in unoccupied rooms or where there is adequate natural light. Adjusting artificial light output can also provide energy savings; for example, using task lighting (e.g., a desk lamp) rather than room lighting can reduce the number of fixtures in use, and dimmers allow lights to be used at maximum capacity when necessary and at low capacity. BEST AVAILABLE TECHNOLOGIES (BAT) Timers and sensors can reduce light usage to the necessary level; these options use technology to mimic the behavioural change described above. Sensors are used to serve different purposes in this model of light energy efficiency and they are of different kinds: Occupancy sensors: This help ensure that lights are only on when they are being actively used. Infrared sensors can detect heat and motion, and ultrasonic sensors can detect sound. Both must be installed correctly to ensure that they are sensitive to human activity rather than other activity in the vicinity (such as ambient noise). Some estimates suggest that occupancy sensors can reduce energy use by 45%, while other estimates are as high as 90%. Photo sensors: They use ambient light to determine the level of light output for a fixture. For example, photo-sensors might be used to turn outdoor lights off during daylight hours. IMPROVING BUILDING DESIGN TO MAXIMIZE NATURAL LIGHT By improving the substantial amount of natural light that comes into a building, the need for artificial lighting is reduced and it may only become a supplement for use at night or when otherwise needed. Also in reducing GHG emissions through building design, it is important to take a holistic approach that considers not just how design affects natural light, but also the heating and cooling requirements for the building. When artificial lighting is necessary, choosing efficient technologies can effectively reduce electricity use and related GHG emissions. In choosing among the available technologies, it is important to consider several factors, including the quality of lighting needed, the frequency of use, and the environment in which the light is being used (e.g., indoor or outdoor). The following types of lighting and fixtures are most common in buildings: INCANDESCENT BULBS These bulbs emit light when an electrical current causes a tungsten filament to glow; however, 90% of the energy used for the bulb is emitted as heat rather than light, making these bulbs the least efficient for most household purposes when evaluating them on a lumen (amount of light emitted) output to energy input basis. Halogen bulbs are a type of incandescent that are slightly more efficient than standard incandescent but less efficient than most other alternatives. COMPACT FLUORESCENT LAMPS (CFLs) AND FLUORESCENT TUBES These emit light when an electric current causes an internal gas-filled chamber to fill with ultraviolet (UV) light, which is then emitted as visible light through a special kind of coating on the tube. All fluorescent bulbs require ballast, a component that regulates the current going through the lamp. Ballasts can be integrated into the bulb, as is the case for most CFLs (allowing them to be used interchangeably with most incandescent bulbs) or non-integrated, which require the ballast to be part of the fixture, as is the case for many fluorescent tubes used in schools and offices. Ballasts come in two varieties: magnetic (which are older and less efficient) and electronic (which are newer and much more efficient). Both CFLs and Fluorescent tubes come in a variety of shapes, sizes, and efficiencies (see Figure 1 for a diagram of a typical CFL bulb). They generally use 75% less energy than incandescent light bulbs. A CFL produces between 50-70 lumens per watt, compared to the 10-19 lumens per watt for an incandescent bulb. They are also long-lasting products, with a lifetime of 10,000 hours for CFLs and a lifetime of 7,000-24,000 hours for tubes. Incandescent bulbs, by comparison, have a lifetime of 750-2500 hours. http://www.energystar.gov/ia/products/lighting/cfls/images/Parts_of_CFL_large.jpg Figure 1: Diagram of CFL Bulb (Source: U.S. EPA/ DOE Energy Star Program. Learn about Compact Fluorescent Light Bulbs http://www.energystar.gov/index.cfm?c=cfls.pr_cfls_about). HIGH-INTENSITY DISCHARGE (HID) LAMPS HID Lamps come in several varieties with widespread applications. They emit light when a current-also regulated through ballast-is passed between two electrodes on either end of a gas-filled tube. Mercury, sodium, or metal halide gas can be used, each with different colour outputs, lifetimes, and applications. These types of lights are not appropriate for all types of areas and use; for instance, HID lamps have a long start-up period-up to ten minutes-and are best used in areas where lighting must be sustained for several hours (e.g., on sports fields or for street lights). In general, HID bulbs are 75-90% more efficient than incandescent bulbs and have a long lifetime. LOW-PRESSURE SODIUM Though these types of lamps are among the most efficient available for outdoor use, they are only useful for certain applications because of their long start-up time, cool-down time, and poor colour rendition. Low-pressure sodium lamps are typically used for street or highway lighting, parking garages, or other security lighting. Because of their niche application, they are not typically considered as a substitute for other types of less efficient bulbs. LIGHT EMITTING DIODE (LED) In light-emitting diodes, electrons and electron holes (atoms that lack an electron) combine, releasing energy in the form of light. This technology has been around for several decades, but many applications of LEDs for lighting have only recently become available commercially as improved colour renditions have been developed and costs reduced. LED fixtures use 75-80% less electricity than incandescent bulbs, and can have a lifespan 25 times longer than incandescent light bulbs. HYBRID SOLAR LIGHTING In this emerging technology, a roof-mounted solar collector sends the visible portion of solar energy into light-conducting optical cables, where it is piped to interior building spaces. Controllers monitor the availability of solar light and supplement it as necessary with fluorescent lights to provide the desired illumination levels at each location. Early experiments show that hybrid lighting is a viable option for lighting on the top two floors of most commercial buildings. This technology has other promising benefits as well. The solar collector on the rooftop can separate visible light from infrared radiation; the visible light can then be used for lighting, and the infrared radiation can be used for other purposes, such as to produce electricity, for hot water heating, or for a space heating unit. Because the energy is split, less heat energy is wasted in lighting; it is instead used for other energy-consuming items within the building. SOLID-STATE LIGHTING (SSL) This are the next generation of light energy efficiency technologies which make use of light-emitting diodes (LEDs), organic light-emitting diodes (OLEDs), or light-emitting polymers are commonly referred to as solid-state lighting (SSL). Unlike incandescent or fluorescent lamps, which create light with filaments and gases encased in a glass bulb, solid-state lighting consists of semi-conductors that convert electricity into light (http://www.lrc.rpi.edu/programs/solidstate/SSLWhat.asp). According to a US Department of Energy (DOE) estimate no other lighting technology offers the same level of potential to reduce energy use in the future like the SSL. The DOE estimates that energy savings in 2030 from SSL could reach 190 TWh, the annual electrical output of 24 large power plants (1,000MW). This they estimate would result in 31.4 million metric ton reduction of carbon and $15 billion in energy savings by 2030. RESEARCH METHODOLOGY The purpose of this research is to know the best possible lighting technology that would guarantee energy efficiency and help reduce carbon emission from residential and commercial buildings. Investigation of the best lighting efficiency technology would be the significant part of the research and the results from it would help form the basis for the next generation of energy efficient technologies that would be used in homes, offices and industries to help save costs, keep jobs and reduce global carbon emission. The research would thus embark on finding out the most cost effective and energy efficient technology that can be used in buildings and how CO2 and light pollution can be reduced especially using next generation technologies like the LEDs and Solid-State Lighting (SSLs). PRODUCT INNOVATION AND APPLICATIONS In terms of product innovation and its application, the Light emitting diodes (LED) and particularly the Solid-State Lighting (SSL) would be the innovative products to be developed to maintain energy efficiency and reduce carbon emissions as they are set to make valued contributions over the next 30 years. It is estimated that energy savings over the next three decades from SSL could reach 190TWh which is the annual electrical output of 24 large power plants which would in turn reduce 31.4 million metric ton of carbon released in the earths atmosphere. LED lighting systems have proved useful in indicator applications such as exit signs and traffic signals due to their brightness, visibility and long-life, while new uses include small-area lighting, pathway and step marking and are set to be the lightings for entire walls and ceilings in future. The Solid-state lighting (SSL) on its part is increasingly used in a variety of lighting applications because it offers the following benefits: Long Life   LEDs can provide 50,000 hours or more of life,  which can reduce maintenance costs. In comparison, an incandescent light bulb lasts approximately 1,000 hours. Energy  Savings   The best commercial white LED lighting systems provide three times the luminous efficacy (lumens per watt) of incandescent lighting. Colour LEDs are especially advantageous for coloured lighting applications  because  filters are not  needed. Better Quality Light Output   LEDs have minimum ultraviolet and infrared radiation. Intrinsically Safe LED systems are low voltage and generally cool to the touch. Smaller, flexible light fixtures The small size of LEDs makes them useful for lighting tight spaces and for creating unique applications. Durable   LEDs have no filament to break and can withstand vibrations. Source: . MARKET USER GROUPS AND PROJECTIONS There is a varying market base for products developed using the ethos of lighting energy efficiency particularly the LEDs and SSLs which are the next generation of lighting efficiency products to hit the market and are expected to great help reduce carbon emissions by reducing the amount of electrical power generated for homes and businesses. The following groups of market users are identified: Home users: Products from lighting energy efficiency can be used by home owners and individuals to reduce the amount of electrical power they consume at home through lighting. This they already do through the use of sensors in their lighting systems that detect human voice, noise or activity before turning on the lighting in places within the home. More products like the LEDs can further be developed to be used in most lighting at home to further reduce energy consumptions in residential buildings. Business leaders: There is the chance for business leaders in different industries to reduce the amount of energy they consume in their offices or industrial places. Lighting energy efficiency can help cut by as much as 30% in some cases of the energy an industrial plant consumes hence saving the company costs and also helping to keep jobs. Investor: This group of stakeholders would like to know the level of profit available in this kind of project and would be interested when they find the huge potential inherent in lighting efficiency technology and would be excited by the next generation of technology in the field such as the LEDs and SSLs. Regulator/Government: Government of most industrialized nations like the United States are committed to making consumers and businesses go green and save money and costs by reducing the energy they consume. They sponsor researches into the development of new LED lighting technologies that would help reduce power generation from government and power producers. Thus this research been done and products developed from it would help government in sensitizing people on new information or products to help them go green and be efficient in their energy consumption thereby reducing carbon emission and act as a regulatory tool for sustainable development. PRODUCT DEVELOPMENT AND MARKETING The research project when completed would see APASI ENERGY COMPANY LIMITED make use of its outcome to develop products in collaboration with other researchers, manufacturers, utility companies that are interested and government to devise schemes were the products would be tested to rate their efficiency and thus facilitate a broad adoption of LED technology across Scotland and indeed the UK. Also professionals in business and marketing would be brought on at a later date to help fashion out marketing strategies to help permeate home and business consumers of electrical power to take on the new products so as to reduce their energy consumptions and save them costs. ENERGY AND CARBON SAVING PREDICTIONS In terms of energy and carbon savings, the efficient use of lighting in residential and commercial buildings would go a long way in ensuring that happens. Energy conservation and efficient use of lightings would greatly reduce carbon emissions associated with lighting significantly. At the level of individual households and businesses, conservation and efficiency measures can lower utility bills, and broader use of lighting efficiency technology across the society can result in Greenhouse gas (GHG) emission reductions and environmental benefits derived from reduced demand for electricity. For example Candescent Fluorescent (CFLs) use 75% less energy and LEDs use 75 to 80% less energy than incandescent light bulbs; substituting these products for traditional lighting technologies, for example, can reduce net energy use. The continued widespread use of efficient lighting technologies like the Solid-state lighting technology would be essential for GHG emission reductions with a 2008 study by the US Department of Energy revealing that replacing LEDs from their current niche uses would save enough electricity to equal the output of 27 coal power plants and reduce 31.4 million metric ton of carbon by 2030. Estimates by global market research company McKinsey Co. also note that LED technology increase such as switching from incandescent and CFL bulbs to LEDs by 2030 would provide GHG emission reductions from lower energy consumptions and also cost-effective over the life-time of the bulbs. Asides from the benefits of lighting efficiency to global climate, its other benefits include lower utility bills to consumers, reduced light pollution and better reading and working conditions. SWOT ANALYSIS Strengths Reduced Energy Bills: The use of timers and sensors in lightings of buildings can go a long way in reducing electricity consumption from its use and this can result in net savings for homes and businesses through lower utility bills. Longer Life: LEDs provide a longer lasting life when used compared to incandescent bulbs. The LEDs can last for up to 50,000 hours compared to the incandescent ones that last for 1,000 hours hence there is a reduction in maintenance costs for businesses and home users. GHG Emission Reductions: Using efficient lighting technologies and energy conservation can result in the reduction of carbon emitted by residential and commercial buildings. The particular adoption of SSLs is estimated in the next 30 years to be a major technology in reducing the amount of electrical power generated from both non-renewable and renewable energy sources thus reducing the emission of carbon into the atmosphere. Carbon Trading: When successful developed and deployed across the UK, efficient lighting technology can help the Scotland and the whole UK save a lot of carbon which could have been emitted into the atmosphere. With new global plans to establish a global carbon market, that would give the UK lots of carbon to be traded in the carbon market. Weaknesses Sensors/Lighting Control: Sensors are not always able to detect and match needs of the occupants because they are often located far from the area of occupancy especially in the ceilings and cannot necessarily gauge lighting needs closer to the ground. Upfront Costs: This pose a particularly notable barrier, though lighting technologies and practices pay for themselves over time due to their long lasting life-time some of them particularly new edge technologies have huge up-front costs that consumers, businesses and local councils may be unwilling to pay. Also, products like the Hybrid solar lighting (HSL) has existed for decades but cost considerations have thus far made widespread adoption infeasible. Mercury Use: Scepticism about the quality of CFL bulbs has deterred many customers though manufacturers have been able to address such concerns like its poor reflectors and noisy nature, but concerns are still high amongst consumers about the use of mercury in it. CFLs contain a very small amount of mercury in each bulb less than 1/100 of the amount in an older thermometer. Carbon Reduction: The project looks at how carbon emission can be reduced through lighting efficiency and due to the fact that carbon emission amounts to about 11% from homes and about 18% from commercial buildings totalling 29% between the two, efficient lighting technologies as presently used cannot reduce the entire global GHG emissions. Opportunities SSLs: The Solid-State Lighting products when fully researched and deployed have the potential to solve lots of the problems associated with light pollution and carbon emissions from residential and commercial buildings as well as saving costs. It also would greatly reduce carbon emission into the atmosphere by reducing the amount of electrical power consumed hence in turn reducing the amount of electrical power needed to be produced. Regulatory Tool: This research project would help regulatory bodies better provide policies and regulations that would drive businesses and homes to become greener and save energy. It would also ensure that industries emit less carbon and thus reduce the amount of pollution going into the atmosphere. Threats Competition: There is the possible threat of competition from rival firms once this research project is made public, as they may want to produce such products. Also there is possible competition from other countries in the world who may want first mover advantage in producing technologies like the SSL which is the future of the lighting efficiency technology industry. Utility Companies: Companies which sell utilities like electricity may see the development of the SSL lighting technology as a threat as it is estimated to reduce electrical energy consumption in homes and businesses amounting to up to the equivalent of 27 power plants in the next 30 years, hence they may not be cooperative in collaborating to testing the development of the new products in pilot schemes amongst their consumers to be able to generate data on the amount of electrical usage the use of SSL technology actually reduces so as to also know how much carbon emission that reduces from the power plants. Payback Periods: The payback period for the use of lighting technology also vary in length and building occupants may be reluctant to install efficient lighting technologies if they will be vacating the buildings before they can reap the full benefits of these technologies. Market Entry Barrier: There is a huge market barrier to new entrants in the lighting efficiency technology market hence the need for funding. To research and also make many of the new technologies in the lighting industry requires costs hence new entrants find it difficult to break into the market or even have enough funds to carry out research on next generation of technologies. THE RESEARCH PROJECT TEAM The research project team is a multidisciplinary one which has experts on low energy consumption technology, engineering, environment scien

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The concept of Social Darwinism was initially perceived in European culture in 1877 as a concept used by sociologists with Charles Darwin’s evolutionary theories providing justification for exploitation. Darwin’s theories provided that animals and plants evolved into different species undergoing a process of natural selection, and animals included humans that undergo the same natural selection process as animals. Darwin’s theories were applied to human society in the attempts to answer issues on why there are rich people and poor people, or why there are people who are dark-skinned and others lighter. Social Darwinism became the new tool of the 1800s to give justification for imperial conquest around the world. Christianity was the strong armor used by Europeans to justify their activities of territorial expansion wherein sacred missions such as the Crusades against Islam as well as the efforts to unify Germany, and the colonization of the New World were use d to cover the political and economic motivations of European imperialists. However, in the early part of the 19th century, the sacred mission of religion was no longer accepted as appropriate cover for Imperialism with the increased literacy in Europe through the Enlightenment movement which promoted the widespread use of reason. European imperialism made Great Britain to have control over great world regions dominating over the conquered peoples of their territories. The Europeans believed that the people of its colonies must be controlled over by the more intelligent Europeans and justified their control until Charles Darwin’s work of On the Origin of Species. This published work was highly opposed to by the church and the bible and was further perceived as an urge... ...oor, less successful, or to the disadvantaged minorities in society as such assistance would unnaturally promote the survival of these weaker groups of people and only allow them to reproduce and spread this defective genetics. Justifications for business practices supported by theories of laissez-faire systems were manifested in workers being overworked and underpaid. Practices of social Darwinism created a great gap between wealth and poverty. Social Darwinism as employed by the Europeans negatively affected natural processes of human social structures in social, political, and economic components to justify imperialism, racism, and capitalism. Charles Darwin may not have primarily extended his theories to human society, but European imperialists took advantage of his concept and for generations have unfortunately succeeded in today’s constant racism issues.

Stacks :: Free Essay Writer

Stacks Data Structures and Algorithms 3.3 Stacks Another way of storing data is in a stack. A stack is generally implemented with only two principle operations (apart from a constructor and destructor methods): push adds an item to a stack pop extracts the most recently pushed item from the stack Other methods such as top returns the item at the top without removing it [9] isempty determines whether the stack has anything in it are sometimes added. A common model of a stack is a plate or coin stacker. Plates are "pushed" onto to the top and "popped" off the top. Stacks form Last-In-First-Out (LIFO) queues and have many applications from the parsing of algebraic expressions to ... A formal specification of a stack class would look like: typedef struct t_stack *stack; stack ConsStack( int max_items, int item_size ); /* Construct a new stack Pre-condition: (max_items * 0) && (item_size * 0) Post-condition: returns a pointer to an empty stack */ void Push( stack s, void *item ); /* Push an item onto a stack Pre-condition: (s is a stack created by a call to ConsStack) && (existing item count * max_items) && (item != NULL) Post-condition: item has been added to the top of s */ void *Pop( stack s ); /* Pop an item of a stack Pre-condition: (s is a stack created by a call to ConsStack) && (existing item count *= 1) Post-condition: top item has been removed from s */ Points to note: a. A stack is simply another collection of data items and thus it would be possible to use exactly the same specification as the one used for our general collection. However, collections with the LIFO semantics of stacks are so important in computer science that it is appropriate to set up a limited specification appropriate to stacks only. b. Although a linked list implementation of a stack is possible (adding and deleting from the head of a linked list produces exactly the LIFO semantics of a stack), the

Games As A Tool For Learning Education Essay

The game is an activity aimed at run intoing the demands of amusement, pleasance, emphasis alleviation, every bit good as the development of certain accomplishments and abilities.A Besides, the game is called a signifier of free look rights, non related to the accomplishment of useful intent and is a pleasance in itself. It is believed that most of the games have the undermentioned chief characteristics: Today ‘s universe is full of games even more than before.A Games, competitions, sweepstakes, lotteries have filled telecasting programs.A Gambling: slot machines, cards, roulette make immense net incomes to proprietors of chancing establishments.A Sports – football, hockey are the most popular shows, and for their members this is a high-paying work.A Films, theatres are favourite amusements with all the spectacle and leisure.A Human civilization arises and unfolds in the game.A In a wide sense of the word game covers human activity in all its manifestations.A Sing the activities of people with this point of view, we can state that people â€Å" play † a partner and parent, kid and nurse, supervisor and subordinate.A In different state of affairss, a individual performs different societal roles.A At the same clip he can play the function of position, behavior, state of affairs, etc.A There are such sorts of games: athleticss, squad games, logical games, games on th e paper, rational and developing games. All these types of games develop different accomplishments and a individual gets more cognition and experience. Developing games are the games in which there is a development or betterment of assorted skills.A The construct of developing games is associated chiefly with the childhood of human life.A Children playing in developing games train their ain thought, inventiveness, creativeness and imagination.A The types, nature, content and design are determined by the specific educational undertakings in relation to the age of kids with their development and interests.A The start the application of educational games for educational intents is allowed in a game at the age of ( 0 ) 1 twelvemonth, and depending on the kid ‘s development in each peculiar instance. There are such age groups: -for kids from 0 to 1 twelvemonth ; -for kids from 1 twelvemonth to 3 old ages ; -for kids from 3 old ages to 7 old ages ; -for kids older than 7 old ages and grownups ; The types of the games include: dough for sculpting, pigments, applications, mystifier, etc. Playing and learning.A Expression â€Å" educational game † is non right, because it comes from the false premiss that you can larn, sing ennui or to play, and non to comprehend the information.A Good game, which is interesting, ever teaches something, and in any good preparation exercising there is an component of the game. Nowadays games have become the resource that helps kids and grownups perceive the information, as there are new advanced attacks that help to explicate everything better and as a consequence people remember easy. A typical characteristic of games is a combination of repeat and surprise.A Therefore, the art of compiler games is in the right dose of repeat and surprise. However, the game is the first thing that a individual wants to play, and though this want may non be wholly motivated, it is still a extremely single. Games do non automatically take to learning.A If we want to guarantee changeless communicating between the game and instruction at the school, so this can be achieved merely by conveying the spirit of the game in the ordinary school life, instead than merely utilizing some educational games.A The instructor, as an organiser of the game should open up the seeds of its ain game started and should learn, presenting into the procedure of larning the elements of the game. Construction of the educational procedure is based on cognition of the construction of educational activities, and other psychological features built-in to the schoolboy.A This cognition is chiefly incorporated in the course of study ; they determine the methods and techniques of training.A But since they are present at that place in a hidden, inexplicit signifier, the instructor would be helpful to follow the trust on a psychological phenomenon that suggests one method or another that changes in preparation activities or the individuality of the pupil it should entail.A For illustration, the thought of the types of preparation activities and their relationship to take to the usage at certain phases of the materialized signifier of action with a assortment of strategies, thoughts about the formation and transportation techniques of cognitive activity, to organize them at assorted educational stuffs, etc. It is known that in preschool age acquisition of new cognition in the game is much more successful than in the classroom.A The kid, fascinated by an attractive construct of the new game, as if no notice of what he learns, although he now and so faces troubles, which require accommodation of its representations and cognitive activity.A In today ‘s pre-school educational teaching method and instruction, the value of the game in the rule is recognized.A The game is merely a tool for a kid to be able to larn what he still can non. However, the tremendous potency of educational games ( didactic, games with regulations, etc. ) are by and large non used.A The repertory of these games is really hapless and covers a narrow scope of undertakings, particularly small concerted games that involve the whole group.A There are virtually no games aimed at the development of strong-minded, moral qualities of the individual and the formation of human dealingss between kids. Educational game – this is non any action with didactic stuff and is non a game response at the compulsory preparation sessions.A This is specific, full and quite content for kids ‘s ‘ activities and besides it has its motivations and its methods of action. Developing games are characterized by the fact that they contain a ready game program, proposed by the kid, the drama stuff, and rules.A The end of a game ever has two facets: 1 ) cognitive, for illustration, what should we learn a kid, what modes of action with the objects we want him to reassign, 2 ) educational, for illustration, the ways of cooperation, signifiers of communicating and relationships to other people who should educate kids. In both instances the end of the game should be formulated non as a transportation of specific cognition and accomplishments, every bit good as the development of certain mental procedures or abilities of the kid. The game program is that the game state of affairs, in which the kid is introduced, and which he perceives as his own.A This is achieved if underdeveloped games are based on the specific demands and dispositions of kids, every bit good as characteristics of their experience.A The attraction of certain things gives a significance to their activities.A In all instances, the game program is implemented in bet oning activities that are offered to a kid when the game took topographic point. Game action ever includes a acquisition job, which all kids have, indispensable to personal success in the game and their emotional connexion with other participants. Action larning undertaking requires the kid ‘s active rational and volitional attempt, but it besides gives the greatest satisfaction.A The content of the preparation undertakings can be rather varied: Make non run in front of clip or name of the topic, clip to happen the image for some clip, memorise a few points, etc. Finally, an of import characteristic of the game is the game rules.A Rules of the game are brought to mind the kids of the program, game action and acquisition undertaking. For the game to actuate kids and to impact them personally, an grownup must go a direct participant.A By their actions, emotional communicating with big kids involves them in joint activities, doing it an of import and meaningful to them.A It becomes like a centre of attractive force in the game.A It is really of import in the early phases of acquiring acquainted with the new game, particularly for younger preschoolers.A At the same clip an grownup arranges the game, and so it helps kids to get the better of troubles, to promote conformity and to observe their errors.A The combination of two different grownup functions – participant and organiser is an of import characteristic in developing the game. Due to the fact that the educational game includes active and meaningful activities for kids, which he volitionally and voluntarily activates, the new experience gained in it, it becomes his personal belongings, as it can be easy applied in other contexts ( and hence the demand to consolidate the new knowledgeA disappears ) .A In add-on, many games teach kids to move â€Å" in head † , to believe what liberates the imaginativeness of kids, develops their originative abilities and capacities. Educational game is a reasonably effectual manner of organizing such qualities as organisation, self-denial, etc. The joint nature of the game is of a great importance, in which the instructor and equal group encourages the kid to follow with the regulations, for illustration, the witting control of their actions.A As a effect of a underdeveloped game, a kid learns the regulations of the game better, uses his originative thought and gives his new thoughts and takes determinations. Gradually, there are requirements to the formation of witting behaviour and self-denial, which is the practical development of moral standards.A Game regulations are like normal behaviour in a group, conveying a new societal experience.A All in all, developing games are really helpful for kids and grownups. They help to happen originative thoughts, to understand of import things and to look at the state of affairs at a different angle. Therefore, in early childhood developing games contain a versatile environment for the formation of the most valuable qualities of the individual.A However, to do their development effectual, there should be consistence in the choice of games.

Analysis of Act 1 Scene 1 of Measure for Measure

Act 1 Scene 1 at its most basic interpretation is encircling the thoughts and actions of three characters; the Duke, Escalus and Angelo. The reader observes the Duke of Vienna telling Escalus, an his advisor, that he is leaving the city and would like to leave Angelo in his place. Escalus agrees with the Duke's choice and Angelo is summoned. Angelo appears surprised and slightly reluctant of the Dukes offer but accepts it readily. However if the reader decides to prove deeper inside the scene, it becomes clear that the seemingly simple interpretation above conceals a more complex scenarios. Firstly the scene is set the city of Vienna in approximately 1604, the reader is made aware it is Vienna when Escalus states, ‘if any in Vienna†¦'The reader is left to wonder whether the play is set in Vienna because of it beautiful historic acitchecture or it dazzling surrounding. Or if perhaps there is a more fundamental reason such as the plays context, whether for instance the themes running rife throughout the play are so diverse and unconventional for its time, that Shakespeare feared situating it in more familiar surroundings such as England. These imminent revelations help to captivate and develop the curiosity of the reader. The language used in measure of measure is Elizabethan, formal and conventional of its time. The play is composed of words such ‘t'affect' and ‘y' are' which were frequently used during that period. The play is constructed within iambic pentameter are subsequently blank verses. The fact that the verses do not rhyme may indicate to the reader, the sincerity of the issues stirring inside the play. As in most plays, the characters within it help guide the play through its stages. Measure for Measure is not an exception. The Duke appears to be an intelligent and sensitive man who cares about the welfare of his citizens, this is emphasised utters statements such as ‘The nature of our people, Our city's institutions, and the terms For common justice†¦' and ‘ I love the people' although he seems to be dismayed by the by the decay in his city and wishes to reform it. The Duke speaks with formal, somewhat legalistic language of a ruling, noble figure. He uses the royal ‘we' and regards the citizens of Vienna â€Å"our people,† the city is â€Å"our city†. Again demonstrating his status as well as his care for his citizens. His diction is quite elegant in some places; he makes use of alliteration, stating that with his â€Å"special soul† he has chosen Angelo. The Duke also uses paradoxical terms that convey the duties of a ruler; he says he will lend Angelo both his â€Å"terror† and his â€Å"love† to rule with, showing how a ruler must be authoritarian, yet caring for his subjects. This causes the reader to ponder just why he is leaving and what drives the urgency. The Duke seems to confide earnestly in Escalus his advisor. Escalus seems to genuinely respect and look up to the Duke, along with a strong fondness towards Duke. The reader becomes increasingly aware of this throughout the scene. A classic example is when Escalus chimes ‘I'll wait upon your honour' just before the Duke's departure. As a result the reader is not sure whether Escalus agreed with the Duke's choice because of his fondness for the Duke or if hemade an objective decision and agreed. The puzzling issue is likely to befriend the reader and subsequently encourage them to read on. The reader is made aware that Escalus is an intelligent man, when to the Duke reports to Escalus, ‘since I know your own science exceeds, in that, the lists of all advice my strength can give you. Then no remains but that, to sufficiently, as your worth is able'. The reader is left to wander how substantial Escalus's role will be in the remainder of the play. Lastly we are introduced to Lord Angelo. The Duke and Escalus both seem to be immensely confident in Angelo's capabilities. Highlighted with phrases such as when Escalus states ‘ if any in Vienna be worth to undergo such ample grace and honour it is Lord Angelo' and when the Duke states to Angelo that: ‘There is a kind of character in thy life that to the' observer doth thy history fully unfold. Thyself and thy belongings are not thine own so proper as to waste thyself upon thy virtues, they on thee'. Angelo is portrayed as a young trustworthy, righteous able man. However he although he does accept the offer humbly he does express reluctantly and concern as times. For example when he pleads, ‘let there be some more test made of my mental before so noble and so great a figure be stamped upon it'. The reader cold possibly perceive this as warning to his behaviour in the rest of the pay. Angelo's righteous appearance subtley disturbs the reader; the reader is subsequen tly left to ponder whether there is something sinister under this loveable exterior. The imagery of a coin could possibly signify Angelo becoming corrupt and obsessed with money. After the reader's brief introduction to the setting, chracteters and subsequent situation the scene leaves the audience crying what next. As although it is a short scene the reader is overwhelmed with a variety of themes and potentialities. Such as the Dukes intentions. For instance why this imminent departure? Also the reason for the portayl of Angelo is it possibly to contradict his behaviour within the rest of the play. The scene could also be a breeding ground for lots of themes for instance, how power can curopt or how responsibility is handled. To summarise although Act 1 scene 1 appears docile in appearance, the volcano is bubbling with possible revelations waiting to erupt, possibly mirroring the potential pattern for the rest of the play.

Emily Dickinson Belonging- Belonging Can Enrich and Limitation

An Individual’s interaction with others and the world around them can enrich or limit their experience of belonging. The desire to belong shapes and informs one’s existence. Whilst a sense of belonging attained through the relationships that we form with people and placet and allows us to feel an enriched sense of fulfilment and acceptance. from an individuals failure to form strong relationships can lead to a limited sense of belonging. relationships cerbates that sense of isolation and exclusion from their society/community.The concepts of both belonging and not belonging are both depicted, this notion is explored in the work of Emily Dickinson – especially in such poems as as â€Å"I had been hungry â€Å", â€Å"I gave myself to him† and â€Å"This is my letter†. Dickinson’s poetry reflects the people, time and place when she was writing, the early 19th century during the Romantic period. Her poems reveal the influences of one’s interaction with others and the world can have on the experiences of one’s inner self, their relationships and their interaction with the world, which may enrich or limit their experience of belonging.An enriched or limited experience of belonging of and individual’s interaction with others and the world may reveal significant truths of the individual. Dickinson scrutinized the inextricable links between orthodoxy, the formation of an individual’s identity and the agonizing paradox of belonging. This can be seen in â€Å"I had been hungry† which demonstrates the persona’s desire for acknowledgement and her Asceticism. â€Å"I looked in windows for the wealth, I could not hope for mine†, appears to be an anguished cry for inclusion and indicates her envy when looking in at those who have a sense of belonging. hough she finally acknowledges that while communion with others is tempting, she would lose too much of her natural self by conforming. The words, â€Å"Nor was I hungry, so I found†, reflects her longing to sample the bounty having been satisfied by her lack of hunger, she ironically returns to her solitary subsistence and inured to hard ships. In a similar manner, Dickinson’s â€Å" I gave myself to him† also reveals her thoughts on her sense of belonging.Through the despondency of her words, â€Å"Myself a poorer prove†, the use of alliteration stresses a sense of disillusionment and discontent that she does not belong dueperhaps to her inadequacy – or even her paradoxical reluctance to belong.. The enrichment or limitation of the experience of belonging is depicted in the work of Dickinson. Unpack the words of the question to show how Dickinson’s poetry really reflects her limitations. Relationships may be enriched or limited by the individual’s experience of belonging as clearly conveyed in Dickinson’s â€Å"I gave myself to him†.The poem is a meta phoric representation of a commitment and has a sense of ambiguity which draws out a variety of interpretations. â€Å"The solemn contract of life† the use of economic commodification portrays her relationship in possessive terms and the juxtaposition of solemn with contract highlights the duality of the marriage vows and Dickinson feels her unworthiness in serving her partner, The oxymoron â€Å"Sweet debt of life† suggests ambivalence which then further limits the individual’s sense of belonging with others. The further limitation of an individual’s experience of belonging is further conveyed in â€Å"This is my letter to the world. world that never wrote to me â€Å", it evoking a sense of loneliness and realization indicating that she is isolated. The limited interaction with others further highlights Dickinson’s limitations in her relationships and ultimately her sense of belonging. Ones experience of belonging is significantly influenced by their interaction with the world. Belonging come from being part of a group or tradition as can be seen in the work of Dickinson. The use of first person narration in, â€Å"I had been hungry all the years,† demonstrates her metaphoric hunger, a symbol of yearning for inclusion within society.The connotation of â€Å"curious,† in â€Å"And touched the curious wine,† suggests that the persona is unfamiliar with social interaction, and does not have a positive experience of belonging. And conveys a sense of discomfort and the feeling of awkwardness, through the use of simile and a negative connotation, â€Å"Myself felt ill and odd, as berry of a mountain bush,† The last lines reflect her longing to sample the bounty having been satisfied by her lack of hunger, she ironically returns to her solitary subsistence and inured to hardships. Nor was I hungry, so I found† she realizes that she wasn’t hungry for an inclusion within society. In a like manner in â€Å"This is my letter to the world†,†This is my letter to the world that never wrote to me†, this indicates that she feels indignant that the world seems to function without noticing her. Her petulant accusatory claim that no one ever communicates with her indicates that she begrudges or resents her invisibility to society thus, stating that the individual’s interaction with society may influence their experience of belonging.Overall, the interaction with other and the world around may reveal significant truths about the individual’s self, their relationships and society. As seen in the work of Emily Dickinson, that the interaction with other and society may enrich and limit the individuals experience of belonging. Good effort. Make sure you address the question clearly. Don’t use the words in the question incorrectly. Also; You will realise this is too long for your speech – so make sure you cut it down to allow for equal t reatment of related material.

English Literature - High school 1 Essay Example | Topics and Well Written Essays - 8000 words

English Literature - High school 1 - Essay Example However, the latter’s love for hunting has surpassed one’s expectations. General Zaroff’s unique hunting style has made him very selfish, egotistic, and inhumane: †¦Ã¢â‚¬ Every day I hunt, and I never grow bored now, for I have a quarry with which I can match my wits.† The aforementioned internal conflicts are somehow in contrast with how General Zaroff poised himself from the beginning up to the end of the story. He showed no remorse feelings or sign of conscience with what he has been doing. Always the hunter but never the prey, the General’s character is unique of its kind. As a young boy, his selfishness and inhumanness grew day by day as he was able to hone his marksmanship, mercilessly killing all animals that come in harm’s way. By being egotistic (or narcissistic), he never valued life, much less human life. And knowing that he is a gifted hunter, he never showed importance to anyone; thus everyone and everything within his eye s ight is disposable – like his pack of dogs and his loyal servant Ivan. These internal conflicts are put to an end when, with great pride from General Zaroff, he is defeated by Rainsford: â€Å"The general made one of his deepest bows. â€Å"I see,† he said. â€Å"Splendid! One of us is to furnish a repast for the hounds. The other will sleep in this very excellent bed. On guard, Rainsford. . . .† Unlike General Zaroff, Sanger Rainsford shows compassion for hunting. He condones cold-blooded murder and value human life. But because he is a prisoner of General Zaroff, Rainsford became fearful, angry, and indignant. He is fearful for his life, knowing that his existence on the island is ticking day in and out. He is also angry with the hunting style of General Zaroff, as mentioned in the story: â€Å"Rainsford did not want to believe what his reason told him was true, but the truth was as evident as the sun that had by now pushed through the morning mists. The gen eral was playing with him! The general was saving him for another day's sport! The Cossack was the cat; he was the mouse. Then it was that Rainsford knew the full meaning of terror.† And because he never knew how it was to become the prey, Rainsford is indignant with the General’s treatment of him – being a mouse trapped in an island of terror. Through his quick wit and vast experience in hunting, Rainsford is able to resolve these internal conflicts by defeating General Zaroff: â€Å"He had never slept in a better bed, Rainsford decided.† 2. Setting provides much more than just the backdrop for the action of a story. In addition to giving the time and place, setting establishes the atmosphere/mood and influences the characters. Setting also affects readers emotions, for example, a story set in a dank and foul dungeon instantly lowers our sprits. Choose one of the short stories from the list below and analyze how the story's setting contributes to the stor y and affects the reader (be sure to indicate which story you chose). The short story â€Å"Thank You, M'am† by Langston Hughes is set late in the evening, along the dark, dimly-lit streets of an unnamed city. The streets are already quiet, with very few people and automobiles pass by. It seems that the neighborhood has been quite tired from the day’s work. It wants to rest from all the shouting and blowing of horns during its waking hours. And like its setting, the story’s main character, Mrs. Luella Bates Washington Jones, is also tired, almost dragging herself to walk by the streets. She is carrying her purse like she was