When the audience does not receive a rounded story, and causality is being blurred the effect of a play can be unsettling, suggesting the presence of an unsolved situation. Although in the case of Death And The Maiden ambiguity is used in an unusual, opposite way where the created effect is best described by calmness and acquiescence. Does Paulina kill Roberto, or does she let him stay alive? Is Roberto really there in the theatre or is he just a fantasy? Leaving these questions open is very provocative. For the first sight the reader might feel intimidated, that theÂ foundations for any interpretation are removed, there are so few facts to start from. Because as he might discovered from the context before there is a symbolism, that one can associate characters with the people of post Pinochet Chile, or people of any country in a state of healing. But then how does this symbolism work? It does not say too much about the ways of reconciliation, and what is more that even if it does so it feels like an analytical dead end. Because it says that no matter in what ways you try to set yourself free of trauma, by revenge or by forgiveness the outcome will be the same, Roberto or his phantomÂ will always be there. This provocative nature of ambiguity forces the reader to look for new explanations. And where is the solution to be found if not in the bookâ€™s yet least understood part, in its title. What is death and the maiden for the reader? It can be the Schubert piece, or a motif that manifests itself in arts and literature from the medieval ages. But most importantly it is the motif for the universal presence of death. And suddenly all makes sense, Dorfman does not intend to intimidate the reader azzal, hogy azt mondja nincs megoldas a tramumaval valo megkuzdesre.
Methane Recovery from Landfills Utilization as a Potential Energy Source and Impact on Reduction of Green House Gasses According to The Conference Board of Canada, current Canadian municipal solid waste (MSW) generation levels are approximately 30 million tonnes per year, with a rate of 894 kg per capita, 67 percent of which is landfilled. (Jones L. et al. 2002) Sanitary landfills burry MSW under soil, sanctioning a complex series of reactions to occur, where anaerobic microorganisms decompose a portion of the organic fraction of the waste producing methane and carbon dioxide.Methane generation and emission from landfills are topics of major interest due to methane's role in the greenhouse effect, migration of hazard potential, health and safety issues and energy applications. The objective of this literature review is to provide a concise relationship between MSW and landfill gasses (LFG), details of potential methods used for capturing methane as appose to emitting the gas as well as the benefits of doing. Rendering to information written by D. R. Reinhart and T. G. Townsend (1998), MSW contains approximately 50 â€“ 70 % of biodegradable material, such as food, paper, wood, and garden trimmings.Once MSW is deposited into a landfill, it undergoes a number of biological, physical and chemical changes. These changes are greatly dependent on site conditions, waste characteristics, temperature, quantity of oxygen, moisture content and other factors. (Nozhevinikova et al. 1993) The most important reactions occurring within the landfill are those involving the microbes which begin to consume the carbon in the organic material, in turn causing the decomposition and eventually leading to the evaluate of LFG.In sanitary landfills, the process of burying waste and regularly covering deposits with a low permeability material creates an internal anaerobic environment that favors methane producing bacteria since the presence of oxygen is lacking. Pathways leading to the production of methane and carbon dioxide from anaerobic digestion of organic fraction of solid waste are briefly described bellow: 1) Decomposition of organic matter- In this preliminary process, compounds of higher molecular mass (Lipids, proteins, nucleic acids etc. are transformed into intermediate mass compounds making them much more suitable for the microorganisms as a source of energy and cell carbon 2) Conversion of decomposed matter to Organic Acid- In this phase, the existing microorganisms convert the intermediate molecular mass compounds into lower molecular mass compounds such as compel organic acids. 3) Conversion of Acetic Acid to Methane Gas- During this stage, the microorganisms transform the acetic acid into methane (CH4) and carbon dioxide (CO2) gasses. Cassia de Brito Galvao, T. and Pos, W. H. 2002) As the solid waste decomposes in landfills, the gas which is emitted is composed of approximately 50 percent CH4 and 50 percent CO2, both of which are green house gasses (GHG) (Bingemer, H G. , ; Crutzen, P. J. 1987) With Landfilling being the primary source of disposal of MSW around the world, (Encyclopedia Britanica 2012) methane emissions from landfill represent the largest source of GHG emissions from the waste sector, contributing around 700 Mt CO2-e. United Nations Environmental Programme 2012) As recorded by Environment Canada (2010), similar trends exist nationally with emissions from Canadian landfills accounting for 20% of the total national methane emissions. Information gathered in a thesis prepared by Palananthakumar, B. (1991) outlines the proportion of methane produced world wide from landfills, and can be seen illustrated graphically below in Figure 1. 0. Figure 1. 0: % of Methane Production Contributions Worldwide from Landfill Existing research leads to the confident statement that methane is a potent greenhouse gas.As summarized in a 2009 article from the Municipal Solid Waste, the Journal for Municipal Solid Waste Professionals, In its Fourth Assessment Report (2007), The Intergovernmental Panel on Climate Change (IPCC) concluded that, on a 100-year time frame, each molecule of methane has a global warming potential 25 times higher than that associated with a molecule of carbon dioxide. (Duffy, D. P. et al 2009) Table 1. 0 summarizes the enumerated global warming potential for the primary greenhouse gasses discussed. Table 1. : Global Warming Potential (GWP) for a Given Time Horizon Greenhouse Gas| GWP20-yr (kg CO2-e| GWP (IPCC 2007) 100-yr (kg CO2-e)| GWP 500-yr (kg CO2-e)| Carbon Dioxide (CO2)| 1| 1| 1| Methane (CH4)| 72| 25| 7. 6| (Forster, P. et al 2007) In the last decade, attention to methane emissions from landfills has grown significantly with increased and ongoing awareness of global warming. The efforts of individual landfills as well as the nations as a whole are closely monitored for the control of methane emissions.A trend has been observed that the magnitude of methane emission has been slightly decreasing, which is potentially due to the development of LFG to energy projects. Contrary to the negative perception associated with all greenhouse gasses, capturing this LFG can lead to beneficial outcomes. Generally, recovered methane either flares or is used as source of energy. The use of the gas as a source of energy is economical and environmentally friendly method to reduce LFG emissions. There are three primary approaches for the utilization of LFG.They include; 1) Direct use of gas locally 2) Generation of electricity and distribution through power grid 3) Processing and injection into a gas pipeline. (Palananthakumar, B. 1991) The captured LFG has the potential to provide a continuous source of energy and improve local air quality. In addition, using LFG can significantly reduce GHG emission, making the option of exploiting this alternative energy source a very viable option to MSW management. The United States Environmental Protection Agency has utilized this MSW management option and continues to encourage it.They have created a program that aims to help reduce methane emissions from landfills by assisting and encouraging the recovery and use of LFG as an energy resource. Since the programs inception, Landfill Methane Outreach Program (LMOP) has assisted 520 LFG energy projects in the United States reduce landfill CH4 emissions and avoid CO2 emissions by a combined 44 million metric tons of carbon equivalent. The reduction of methane emission through this program has slightly influenced the overall emission of LFG in USA.The success of LMOP can be reckoned by observing statistics from 2010 where reductions from all operational LFG energy projects were equivalent to Annual GHG emissions from 18. 5 million passenger vehicles. (United States Environmental Protection Agency 2012) A variety of technologies exist to generate electricity from collected methane including, internal combustion engines, gas turbines, and microturbines. Although there is a diversity of technologies, approximately eighty five percent of existing LFG electricity generation projects use internal combustion engines or turbines. United States Environmental Protection Agency 2012) â€œHow much energy can Municipal solid waste produce? â€ is a common question among existing research. According to â€œAn Overview of Landfill Gas Energy in the United Statesâ€ published by U. S. Environmental Protection Agency Landfill Methane Outreach Program, one million tons of landfilled MSW can produce an electricity generation capacity of approximately 0. 8 MW. To further quantify this value, allowing the magnitude of the electricity generation to be understood, Focus on Energy (2003) outlines that 0. 8MW would be drawn to power approximately 8 000 100w light bulbs.It can be concluded that LFG recovery wreaks benefits environmentally, socially and economically. LFG recovery, particularly methane, also makes an impact on the larger issue termed green house effect, as it is amongst the most cost effective and feasible measures to reduce greenhouse gas emissions. The recovered LFG can be directly or indirectly utilized to produce energy, which is a perpetually small, however; a very important component of an integrated approach to the solid waste management given that the use of landfills continues to remain the predominant method of municipal solid waste disposal in most countries. Global Methane 2012) References Bingemer, H G. , ; Crutzen, P. J. (1987). The Production of Methane from Solid Wastes. â€ Journal of Geophysical Research, 90(D2), 2181â€“2187. Cassia de Brito Galvao, T. and Pos, W. H. (2002) â€œLandfill Biogas Management: Case of Chilean Sanitary Landfills. â€ Recovering Energy from Waste, 183-194. Conference Board of Canada. (2011). â€œMunicipal Waste Generation. â€ How Canada Performs, ; http://www. conferenceboard. ca/hcp/details/environment/municipal- waste-generation. aspx#_ftnref3; (Sept. 28th, 2012) Duffy, D.. P et al (2009). â€œMoving Upâ€¦ to the Top of the Landfill. Municipal Solid Waste Management. 19(2), 36-39. Encyclopedia Britanica (2012). â€œSolid Waste Management. â€ ;http://www. britannica. com/EBchecked/topic/553362/solid-wastemanagement /72390/Sanitary-landfill; (Sept. 29th, 2012) Environment Canada (2010). â€œMunicipal Solid Waste and Greenhouse Gases. â€ ;http://www. ec. gc. ca/gdd-mw/default. asp? lang=En;n=6F92E701-1; (Sept 29th, 2012) Focus On Energy (2003). â€œElectricity Basics for Renewable Energy Systemsâ€, Focus on Energy, Wisconsin. Forster, P. et al (2007) â€œChanges in Atmospheric Constituents and in Radiative Forcing. Climate Change 2007:The Physical Science Basis. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. Global Methane (2012). â€œBasic Concepts of Integrated Solid Waste Management. â€ International Best Practices Guide for LFGE Projects, Global Methane Initiative, U. S. Environmental Protection Agency, Washington, DC. Jones, L. et al. (2002). â€œEnvironmental Indicators 5th Edition. â€ Critical Issues Bulletin, The Fraser Institute: Vancouver, BC Landfill Methane Outreach Program (2012). â€œAn Overview of Landfill Gas Energy in the United Statesâ€ U. S. Environmental Protection Agency, Washington, DC.Nozhevinikova, A. N. , et al. (1993). â€œMicrobiological Process in Landfills. â€ Water Science Technology, 27(2), 243-252. Reinhart, D. R. , and Townsend, T. G. (1998). Landfill Bioreactor Design ; Operation, CRC Press LLC: Boca Raton, FL, USA. Palananthakumar, B. (1991). â€œModeling of Methane Generation, Oxidation and Emission in Landfills. â€ M. Eng. Thesis, Asian Institute of Technology School of Environment, Resources and Development, Bangkok, Thailand. United States Environmental Protection Agency (2012). â€œLandfill Gas Energy:A Guide to Developing and Implementing Greenhouse Gas Reduction Programs. Local Government Climate and Energy Strategy Guides, U. S. Environmental Protection Agency, Washington, DC. United States Environmental Protection Agency (2011). â€œLandfill Methane Outreach Program. â€ Environmental Protection Agency, ;http://www. epa. gov/lmop/ faq/ lmop. html; (Sept 29th, 2012) United Nations Environmental Programme (2012) â€œWaste and Climate Change: Global Trends and Strategy Framework. â€ United Nations Environmental Programme Division of Technology, Industry and Economics International Environmental Technology Centre, Osaka, Japan.
Critically discuss the ethical arguments for and against the legalisation of euthanasia - Essay Example
Genetic views strongly believe that life starts at fertilization stage whereas embryological views argue that life begins at the point of gestation (Gilbert, 2011; Blazer & Zimmer, 2005, pp. 1 â€“ 20). As compared to genetic and embryological views, some people argue that life begins at birth (ibid). Regardless of how life starts, health care professionals are trained to conserve human lives by alleviating their suffering whenever they are terminally ill. As much as possible, medical care professionals should prolong the lives of the patients unless there is an advance order stating that the patient instructed a â€œdo not resuscitateâ€ (DNR) decision together with the patientâ€™s signature (Salmasy, Sood, & Ury, 2008). Death is the end part of the life cycle which nobody can avoid. Aside from a combination of pain, depression, and psychological disturbances, the fact that the economic cost of medical intervention for terminally ill patients is very expensive for most people with average income increases the number of cases wherein a terminally ill patient would seek for medical assistance to end their lives at the soonest possible time. Euthanasia is all about â€œintentional killing of a dependent human being, by act or omission, for the patientâ€™s alleged legal benefitsâ€ (Ciabal, 2003, p. 129). ...
euthanasia is considered as â€œgood deathâ€ since this option allows a terminally ill patient to live the last few minutes of their lives more comfortable (ibid). Focusing on ethical cases whereby terminally ill patients are seeking for euthanasia, this report will discuss whether or not a terminally ill patient has the right to refuse medical treatment. In reference to the sanctity of life and quality of life perspective, this report will discuss why life should be prioritized more than death. As part of going through the main discussion, whether or not the patients have the right to request for an ineffective medical treatment will be answered together with the cliniciansâ€™ obligations to meet the patientsâ€™ request. After discussing the significance of advance directives in terminating the lives of terminally ill patients, some barriers that could prevent the patients from writing an advance directive will be identified and tackled in details. The Right of a Terminally Ill Patient to Refuse Medical Treatment Under the informed consent guidelines, the doctors and nurses should properly inform the patients about the main purpose, advantages, and disadvantages of each prescribed drug and other medical care intervention such as the use of life-sustaining treatment like tube feeding devices, mechanical breathing ventilation and dialysis machines, and/or diagnosing devices like x-ray and CT scan (Kaufmann & Ruhli, 2010; Ganzini et al., 2003). On top of this, each medical care professional is also required to respect and observe the patientâ€™s autonomy by allowing them to make their personal decision when it comes to selecting the care and medical treatment they prefer (Walker, 2009; Stirrat & Gill, 2005). Given that each patient has the right to accept or not to
Write something about yourself. No need to be fancy, just an overview.