Friday, September 20, 2019
Integrated Pests Management: A Safe Alternative to Hazardous Pesticide
Integrated Pests Management: A Safe Alternative to Hazardous Pesticides à à The well being of our everyday day lives are affected by the agriculture industry.à For many years now we have been using pesticides to control the pest population in our crops.à Over the years research has shown that pesticides can cause fatal diseases like cancer.à Pests are also becoming resistant to pesticides.à It is time that we find a new way to rid of pests.à A program called the Integrated Pests Management is doing so and many growers have begun to use their tactics. Pesticides have been known to cause a number of diseases in humans as well as animals.à The most vulnerable to these diseases and side effects are infants.à Pesticides effect infants the most because the structures of their body systems are not fully developed.à Parents donââ¬â¢t use adult doses of drugs to their children. In contrast, the EPA allows infants and children to eat adult approved doses of pesticides that have not been evaluated in terms of safety for infants and young children.à Infants and children react differently to many drugs and toxic substances.à An example of this is Aspirin.à Aspirin can cause Reyes syndrome (a condition that kills 80 percent of its victims) in children and teenagers, but it does not cause this condition in adults (Cook, 2). Children are at the greatest risk to pesticides.à The national Cancer Institute USA found an increase risk of leukemia in children whose parents used pesticides in the home garden.à Children are commonly exposed to hundreds of pesticides in food, meanwhile, the incidence rate of childhood brain cancer and childhood leukemia continues to rise (Ries, 93).à ââ¬Å"The reason that children are at risk the most is because ever... ...th. Pesticides in Food, Environmental Working Group, à http://www.ewg.org/pub/home/reports/Baby-food/Baby.html Elkins, E.R. Effect of commercial processing on pesticide residues in selected fruits and vegetables. Journal of the Associated of Official Analytical Chemists, 1989 Ries, L., et al.1993. Cancer in Children, SEER Cancer Statistics Review. U.S. Department à of Health and Human and Human Sevices. Washington, D.C. 1990 Sorensen, A. Proceedings of the National Integrated Pest Management Forum, June 17-19, à 1992. American Farmland Trust Center for Agriculture in the Environment. à Arlington, VA, 1992 United States Environmental Protection Agency: Prevention, Pesticides and Toxic à Substances, For Your Information: EPA Efforts to Encourage Alternatives à To Traditional Chemical Pest Control, Washington, D.C., March 1993 à à à Ã
Thursday, September 19, 2019
Scientology Essay example -- essays research papers
Scientology is a fairly new religion. Founded in the twentieth-century by a man by the name of L. Ron Hubbard. He began his studies long ago and wrote a book in 1950 called Dianetics: The Modern Science of Mental Health. He claimed that this book was one of the first tools used to solve the problems of the mind. This book focused on irrational mind, war, crime, and insanity. Mr. Hubbard designed this book so that anyone can use it to improve oneself. He did not stop at Dianetics, however, he felt that there were still some issues that had to be addressed. He was now going to try to figure out the nature of the human being, what makes up our ââ¬Å"being.â⬠Mr. Hubbard combined religion, philosophy, and his theory of dianetics and came up with Scientology. Mr. Hubbard had a unique life. He was born in Tilden, Nebraska, the son of a naval commander Harry Ross Hubbard and Ledora May Hubbard. L. Ron Hubbard was born on March 13, 1911. When he was about two his family moved to Montana where he learned to be a rough western cowboy. His mother was thoroughly educated woman. She taught him how to read and write at an early age. L. Ron Hubbard was said to have an avid interest in life at an early age. When his fatherââ¬â¢s naval career required that they move away from Montana, his mother was responsible to teach him the schooling he missed. When Ron was twelve the family moved to Seattle, Washington. Ron got the liberty to be associated with many different types of people such as the Blackfoot Indians, Beijing magician, Chinese magicians, and studying Buddhists. He enrolled at George Washington University, his father put him into mathematics and engineering. Now he learned how to take the scientific approach to solving problems. He became more and more interested in the way the mind works. He would ask the professors at George Washington University and they could not give him an answer, so he came up with the idea that the western culture did not understand a thing about the mind. He believed that it was his duty to explore the mind and to tell the western world how it works. This is when he came up with dianetics and then eventually the religion of scientology. Scientology consists of eight dynamics. With these dynamics, a person realizes that his life extends beyond himself. The first dynamic is ââ¬Å"self.â⬠This teaches you to survive as an individual. Taking care of such thi... ... deal with life here on earth and teaches people how to become better people. Improving conditions here on earth is the foremost important thing to fix. Scientology seems to address this issue with full force. It uses modern technology, and knowledge of how human relations to improve the quality of life of people who chose to follow Scientology. In the description of L. Ron Hubbard, I was disgusted. They made it sound like he was this extremely smart guy. When he started studying the mind and the way it works, he noticed that the western society knew nothing about it. He sounded pompous when he said ââ¬Å"it was very obvious that I was dealing with and living in a culture which knew less about the mind than the lowest primitive tribe I had ever come in contact withâ⬠¦Ã¢â¬ I did not like this at all. He sounds like a very arrogant man. Arrogant in a cocky way. In doing research I noticed that all of his followers seem to have the same attitude. I find that it is funny that they are so dedicated to following a man who was born in the twentieth-century. He is an ordinary man who happened to be exceptionally smart. He is a business man who is good at persuading people and wants to make money.
Wednesday, September 18, 2019
Intelligence is Key Essay examples -- Art, Celtic Literature
Celtic literature features a full complement of female characters that deserve recognition; from warriors and rulers, to helpmates and daughters. Female characters, like their male counterparts, are often motivated by emotion. The Morrà gan and Macha, act out of anger, disrupting a hero or cursing generations to come. Others such as Fà ºamnach, act out of jealousy, causing a chain of events to unfold. However, the women who incite or prompt action due to their intelligence or wit ââ¬â Rhiannon, Emer, Medb, Nes, and Mac Daa Thoââ¬â¢s Wife ââ¬â are arguably the most complex and intriguing. Rhiannon purposefully, and with thought, gains the attention of the King Pywll and uses him to avoid an unwanted marriage. Rhiannon appears to King Pywll and his retainers halfway through branch one of The Mabigoni, on three consecutive days, riding a horse that even-paced cannot be caught. On the third day, Pwyll himself rides after her, only able to catch up after requesting her to wait. They begin conversing, and in a single exchange Rhiannon both declares love for Pwyll, and announces her engagement to another. She temps him: ââ¬Å"I have never desired any man, and that because of loving youâ⬠, then announces her unavailability (ââ¬Å"Pwyll,â⬠45). Rhiannon essentially ensnares Pwyll, allying herself with him and ensuring he will go against her current suitor, Gwawl son of Clud. This strong female character even directs Pwyllââ¬â¢s actions in attaining her hand. When her former suitor arrives at her wedding, Pywll rashly promises anything he wants, not knowing the manââ¬â¢s identity. Rhiannon rebukes Pwyll: "Never has a man been more feeble-witted than you,â⬠then lays out three-part plan to ensure that Gwawl shall never attain her (Ford, 46). This intelligent woman ... ...ces that: ââ¬Å"Sleeplessness has come to Macc Da Thà ³Ã¢â¬â¢s house/ He has need of advice but speaks to no oneâ⬠(Gantz, 181). She suggests that her mind may comprehend what his cannot, and he tells her his blunder, that he promised the hound to two. She suggests that he ââ¬Å"give the dog to both sides- [and] let them fight over it,â⬠(Gantz, 181). This would prevent one party from picking up the hound, and then the other party arriving and attacking him in anger. Though her plan does not go as hoped, she does offer a solution, and protects her husband from blame (the two parties are too engrossed with each other). Celtic mythology features a full complement of women who play an important role. Rhiannon, Emer, Medb, Nes, and Mac Daa Thoââ¬â¢s Wife use their intelligence to help further themselves, to enable those they love, or to protect. They create kings, heroes and alliances.
Tuesday, September 17, 2019
One Country, Two Systems
One country, two systems ââ¬Å"One country, two systemsâ⬠is an idea originally proposed by Deng Xiaoping, then Paramount Leader of the People's Republic of China (PRC), for the reunification of China during the early 1980s. He suggested that there would be only one China, but areas such as Hong Kong, Macau and Taiwan could have their own capitalist economic and political systems, while the rest of China uses the ââ¬Å"socialistâ⬠system. However, Deng rejected the proposed use of such a system for territories that are already under de facto PRC rule, such as Tibet.In the following research paper, the topic will be discussed in two different perspectives, both Hong Kong and Macau. Hong Kong Hong Kong's stability and continued development as an international city since reunification in July 1997 have depended upon the successful implementation of the principle of ââ¬ËOne Country, Two Systems'. This framework ensures that Hong Kong retains its distinct identity and stren gths as an international business, financial, shipping and aviation centre.The ââ¬Ëfour pillars' of Hong Kong's success remain as relevant and important today as they did five, 10 or 15 years ago. These are: the common law system upheld by an independent judiciary; the free and unfettered flow of information; a level playing field for business; and, a clean, respected civil service. The Basic Law, Hong Kong's constitutional document, has provided the constitutional basis upon which the Hong Kong Special Administrative Region has continued to protect its capitalist system, as well as the way of life, the rights and freedoms of its residents.These include: equality before the law, private ownership of property, freedom of assembly, freedom of movement, freedom of religious belief, freedom of academic research and freedom to join trade unions. The courts continue to administer justice independently, while Hong Kong's own police, immigration, customs and excise and anti-corruption of ficers have remained responsible for maintaining law and order in the SAR. Hong Kong continues to maintain its previous economic system. It has maintained its renowned, business-friendly, low-tax system and its own currency, which has been linked to the US Dollar at a rate of US$1 to HK$7. 0 since October 1983. Mainland leaders have scrupulously adhered to a ââ¬Ëhands off' approach, allowing Hong Kong people to administer their own affairs (except defense and foreign affairs) with the promised high degree of autonomy. As always, Hong Kong people have been quick to speak up if they have perceived that their rights and freedoms, or the systems underpinning Hong Kong society, are in any way being compromised or undermined. Hong Kong people have taken very seriously their role in shaping the SAR and the society in which they live.This has resulted in greater demands from the public and the legislature for an open, accountable and more efficient government. Hong Kong has continued to play an important role in international affairs. It remains an active member, in its own right using the name ââ¬ËHong Kong, China', of the World Trade Organization, the World Customs Organization, the Asia-Pacific Economic Co-operation (APEC) forum and the Asian Development Bank and as an associate member of the Economic and Social Commission for Asia and the Pacific (ESCAP) of the United Nations.Hong Kong's presidency of the Financial Action Task Force (FATF) on Money Laundering in 2001-02 allowed the SAR to take a leading role in the international fight against terrorist financing in the wake of the September 11 terrorists attacks in the United States. At an Extraordinary Plenary Meeting, chaired by Hong Kong in Washington D. C. in late October 2001, the FATF's remit was expanded beyond money laundering to focus expertise on a world-wide effort to combat terrorist financing.A wide range of special recommendations adopted at the meeting will deny terrorists and their supporters ââ¬â¢ access to the international financial system. Representatives of the HKSAR Government have also continued to participate, as members of delegations of the People's Republic of China, in international organizations and conferences limited to states, such as the International Monetary Fund, the World Intellectual Property Organization, the International Civil Aviation Organization and the International Telecommunications Union.There are more than 130 binding bilateral agreements between the HKSAR and over 50 countries throughout the world. Areas covered in these agreements include air services, visa abolition, investment promotion and protection, surrender of fugitive offenders, mutual legal assistance in criminal matters, transfer of sentenced persons, customs co-operation, and co-operation on information technology and avoidance of double taxation. Hong Kong has also entered into non-binding arrangements with other foreign states, regions and international organizations.The se arrangements are often in the form of a memorandum of understanding and cover a spectrum of topics from co-operation in information and communication technology, environmental protection to cultural exchanges. More than 200 multi-lateral treaties apply to the Hong Kong SAR (of which more than 80 do not apply to the Mainland). They cover many areas such as international crimes, private international law, customs, marine pollution, science and technology, civil aviation, merchant shipping, intellectual property, health, investment, trade and industry, postal services, labor issues, human rights, transport and telecommunications.Hong Kong is home to a large consular corps and several important international organizations. At the end of March 2002, there were 55 consulates general in Hong Kong, 46 honorary consuls and six semi-officials missions. The United Nations High Commissioner for Refugees, the European Union, and the Bank for International Settlements, the International Moneta ry Fund and the International Finance Corporation/World Bank all maintain a presence in Hong Kong. Five years after 1997, ââ¬ËOne Country, Two Systems' is firmly in place and ââ¬ËHong Kong people running Hong Kong' is part of everyday life.With the election of the Chief Executive by an electoral college, a fully-elected legislature and an aggressive, critical media, government operations and policies have been subjected to increasing public scrutiny and pressure. In his Policy Address in October 2001, the Chief Executive Mr. Tung Chee Hwa outlined the government's initial thinking on ways to improve the system of accountability for senior officials. Detailed plans to take effect from July 1, 2002 were subsequently unveiled by Mr. Tung on April 17, 2002.The new system is designed to more clearly define the roles, powers and responsibilities of top government officials. It would also build on the civil service's existing strengths such as permanency, professionalism, neutrality, efficiency and freedom from corruption. Under the present government structure, civil servants play a critical role in the governing team. Policies are formulated by Directors of Bureau (often referred to as Policy Secretaries) and endorsed by the Executive Council (ExCo).Legislation and public expenditure relating to such policy initiatives needs to be scrutinized and passed by LegCo before being implemented by various bureau and departments. During this process, Directors of Bureau have inevitably taken on a political role, which does not gel with the traditional role of the civil service. Civil servants are generally employed on permanent terms. The question is how to improve accountability while at the same time recognize the importance of an impartial, permanent civil service. The new system of accountability announced by Mr.Tung aims to solve this conundrum. Under the new system, the Chief Secretary for Administration, the Financial Secretary, the Secretary for Justice and Di rectors of Bureau will no longer be civil servants but will be appointed on contract terms. They will be accountable to the Chief Executive for the success or failure of matters falling within their portfolios. Significantly, they will all be appointed to the Executive Council to play a direct role in the process of deciding on government policies as well as collectively allocating the resources within the government as a whole.Because of this, government's work will become more streamlined and efficient. This will also provide a better co-ordination in the formulation and implementation of policies. These new Principal Officials will assist the Chief Executive in developing and shaping policies, overseeing the implementation of policies, monitoring the delivery of services by executive departments and explaining developments within their portfolios to gain public support. They will respond to LegCo questions, introduce bills and take part in LegCo motion debates.They will attend me etings of LegCo Panels, subcommittees and committees to participate in discussions on important policies. The new accountability system is consistent with the Basic Law under which Principal Officials are nominated by the Chief Executive for appointment by the Central People's Government. At the policy bureau level they will be supported by Permanent Secretaries, very experienced senior civil servants, in analyzing and defending policies, steering executive departments and managing human and financial resources.Below the policy bureau level, various departments will remain responsible for implementing policies and delivering public services. With a clearer definition of roles, these Principal Officials will operate at the political level while civil servants will be loyal to the government of the day and maintain political neutrality. The merits of the new system are that the Principal Officials' roles and responsibilities are better defined and that they will need to be more accoun table to enlist the support of the legislature and the public.The new system responds to increasing public calls for a higher degree of accountability for principal officials, while maintaining the structure, role and ethos of the civil service. The civil service system will remain intact and there will continue to be a permanent, stable, meritocratic, professional and politically neutral civil service. The new group of Principal Officials will proactively gauge public opinion and strengthen communication with the public to gain a better understanding of community needs and to devise policies fulfilling these needs.They will work more closely with the legislature, proactively seek the views of LegCo members and strengthen communication with the LegCo to ensure a better working relationship between the Executive and Legislature. The new Principal Officials will be able to focus more attention on public demands and needs, and will be able to operate free from the restrictions imposed on civil servants. Macau The development of Macao since its return to the motherland demonstrated the strong vitality of the ââ¬Å"one country, two systemsâ⬠concept, said Edmund Ho Hau Wah, chief executive of Macao Special Administrative Region (SAR) in a special press interview.The concept was proposed by then Chinese leader Deng Xiaoping in the early 1980s for the reunification of China. Under the mechanism, Macao retained its capitalist systems after returning to the motherland on Dec. 20, 1999. The per capita GDP of Macao residents in 2008 reached 39,000 U. S. dollars, almost three times the average before its return, according to World Bank figures. The central government adopted a series of measures to support Macao's development.In two meetings with Edmund Ho Hau-wah in December 2008, President Hu Jintao and Premier Wen Jiabao said the central government would fully support Macao in dealing with the challenges brought about by the global financial crisis. At the end of last year, the central government launched nine measures covering finance, infrastructure, and regional cooperation, funding Macao's small-and-medium-sized enterprises, ensuring Macao's food supply, to help Macao tide over the economic downturn and promote integration of the Pearl River Delta region, which includes Guangdong Province, Hong Kong and Macao.Macao's water supply is at risk of salinization due to drought upriver. The central government and Macao's neighboring province shave adopted relief measures, including the construction of hydroelectric projects to ensure the long-term supply of drinking water to Macao. Government statistics show more than 33 million mainland tourists have visited Macao since 2004 and have generated an estimated revenue of more than 100 billion patacas (12. 66 billion U. S. dollars) ââ¬â gambling revenue excluded.Under the support of the central government, Macao's land area has increased from 22 square kilometers before its return to about 30 square kilometers. In June, the ninth session of the Standing Committee of China's11th National People's Congress (NPC) passed a bill giving the Macao SAR jurisdiction over a new campus of the University of Macao on Hengqin Island, which was originally part of the southern mainland city of Zhuhai. In 2007, Macao implemented a 15-year free education system, which will run from kindergarten to senior high school. From my own experience, for the past 10 years, the central government has been strictly adhering to the principle of ââ¬Ëone country, two systems' and the Basic Law of the Macao SAR. The central government has not interfered the inner affairs of the SAR,â⬠said Edmund Ho Hau Wah. After its return to the motherland, Macao successfully held Ministerial Conferences of the Forum on Economic and Trade Cooperation between China and Portuguese-Speaking Countries in2003 and 2006 and the East Asian Games in 2005.With the support of the central government, the historic center o f Macao, which is home to more than 20 unique sites demonstrating the assimilation and co-existence of Chinese and Western cultures, has been inscribed on the UNESCO World Heritage List. ââ¬Å"Since the founding of the Legislative Assembly of Macao Special Administrative Region, Macao has enjoyed complete legislative power and has enacted and amended more than 100 laws, which was quite unimaginable when it was ruled by the Portuguese,â⬠said assembly president Lau Cheok Va.An election committee, responsible for electing the chief executive of Macao SAR, is composed of representatives from a wide range of sectors including industrialists, unionists, public service workers, religious figures and politicians. Dr. Leonel Alberto Alves, a legislator and ââ¬Å"Macaenseâ⬠(a Portuguese expression for Macao-born Portuguese or Macao-born person of Portuguese and Chinese or of Portuguese and another Asian ethnic group), said an estimated 20,000 ââ¬Å"Macaenseâ⬠lived in Macao and their rights were fully safeguarded and customs respected since Macao's return to the motherland.Overall, our view remains that the concept of ââ¬ËOne Country, Two Systems' is an everyday reality in Hong Kong. The rule of law and the independence of the judiciary, which are so vital to Hong Kong's success, are being upheld. Essential rights and freedoms are being protected, and challenges to them fully and freely debated. ââ¬â UK Secretary of State for Foreign and Commonwealth Affairs Mr.Jack Straw, Six-monthly Report on Hong Kong, July-December 2001, presented to the British Parliament, March 2002 Most Western analysts conclude today that the ââ¬ËOne Country, Two Systems' has permitted Hong Kong to maintain its unique character. Long-term success depends on preserving the quality and integrity of Hong Kong's outstanding cadre of civil servants, the rule of law and an independent judiciaryâ⬠¦ ââ¬â US Speaker's Task Force on the Hong Kong Transition, Ninth Repo rt, January 30, 2002
Monday, September 16, 2019
Dark Time
Theodore Roethke is one of Americaââ¬â¢s premier poets, ranking alongside Robert Frost, Walt Whitman, and Carl Sandburg. His 1964 poem ââ¬Å"In A Dark Timeâ⬠is both disturbing and challenging as a man veers on the edge of sanity through an outdoor experience. Roethke demonstrates through subject and form that he is a master poet, reflecting the deep inner sense of self that can portray such emotions without being reduced to cliche or juvenilia. The title of the poemââ¬âââ¬Å"In A Dark Timeâ⬠ââ¬âis the first clue that all is not well in Roethkeââ¬â¢s universe.It is the primary indicator that the poem speaks to the troubled half of life. In many ways one is reminded of Robert Frostââ¬â¢s ââ¬Å"Acquainted With the Night,â⬠which conveys a deeper metaphor of depression in its surface-simple account of insomnia. ââ¬Å"In A Dark Timeâ⬠speaks volumes about the poem that will follow. Roethke relies on a single simile in this poem, although it is rep lete with metaphor. In the last stanza, he says his soul is ââ¬Å"like some heat-maddened summer flyâ⬠buzzing on the windowsill.One can instantly picture the frantic action of such a fly, its nervous bouncing, ticking and constant action. His soul, being like this, is perpetually agitated. But Roethke has established this interpretation through the metaphor of the dark woods; a place where is soul has been caught out in the middle of the day, yet plunged in darkness. He is lost here, wondering whether something ahead is shelter (the cave) or further travail (merely a bend in the path). He sees himself dancing on the edge physically and metaphorically.In the first two stanzas, Roethke personifies his shadow, an image that most people perceive as a dark figure to begin with. Roethke expands the idea of his shadow to incorporate the darker nature of his self. He meets his shadow in the deepening shade, giving the reader a sense that he is meeting the darkest part of his inner se lf at a time when the depths of his depression have encompassed him. As with most people, Roethke relates a realistic happening as most people only reflect upon their lives in their darkest hours (ââ¬Å"In a dark time, the eye begins to seeâ⬠).In the last stanza, Roethke personifies his fear. (ââ¬Å"A fallen man, I climb out of my fearâ⬠). As many know, fear is not a physical entity that can be ascended or descended. In this case, however, Roethkeââ¬â¢s fear (ââ¬Å"his dark timeâ⬠) has become such an overwhelming reality to him that, in order to emerge from the depths of his struggle, Roethke sees this ascent as a physical act. Reading the line in full, the reader gets a sense that Roethke has actually fallen into an abyss known as fear.
Sunday, September 15, 2019
Study On Biomass Power Plant Environmental Sciences Essay
Power coevals from biomass stuff is going one of the most promising options to the established power workss based on fossil fuels such as coal or natural gas. Biomass Ok, so, biomass is defined as any organic stuff derived from workss, that is available on a renewable footing. These stuffs are by and large known as biomass feedstocks and include: Wood: from forestry fixingss ( foristri ââ¬â the scientific discipline of caring for woods, and the trees and other workss that grow in them ) or from wood treating systems ( production of wood merchandises, such as mush and paper, building stuffs ) . Energy harvests which are harvests grown specifically for energy applications. Agricultural residues ( residius ) residues from agribusiness reaping or processing. Municipal Waste ( miunicipal ) which is residential, commercial, and institutional post-consumer waste such as waste paper, composition board, nutrient waste. And besides Animal Waste from farms and animal-processing industries. The production of electricity from biomass is described as a C impersonal engineering because when a new works is turning, it absorbs carbon dioxide from the ambiance to make glUcose utilizing energy from the Sun. When this works stuff is burned or decomposed by microorganisms the carbon dioxide is released back to the ambiance. These procedure is known as C rhythm which maintain the atmospheric CO2 degrees and has happened since there have been workss on Earth. Fossil fuels such as coal and gas are besides derived from biological stuff ; nevertheless this stuff absorbed CO2 from the atmosphere many 1000000s of old ages ago and when the dodo fuels are burned, this carbon dioxide is released to the ambiance increasing the natural atmospheric concentrations. The critical difference between biomass and fossil fuels is one of clip graduated table. There are presently two chief procedures used in power workss for the production of electricity from biomass: and they are direct burning and gasification. Direct burning is basically the incineration of dry biomass in the presence of air to bring forth heat. Gasification is a thermochemical transmutation of biomass at high temperature ( 700Aà °C to 1000Aà °C ) in the presence of a limited sum of O into a combustible gas which is called syngas and is a mixture composed of chiefly carbon monoxide ( CO ) and H ( H2 ) ââ¬â C monoxide, H, C dioxide and methane. Now let ââ¬Ës see how these procedures are integrated into the biomass power workss. So in the first procedure: The heat produced by direct biomass burning in a boiler can be used to bring forth electricity utilizing a steam turbine in the same manner as in a coal-burning power works. This is a diagram of a typical biomass steam power works. The biomass is collected and taken to the power station. At the power station the biomass is fed into the boiler where it is burned. The heat from firing the biomass is used to boil H2O which generates steam that turns the turbines. The turbines are connected to generators. The generator spins and the mechanical energy is converted to electrical energy. Biomass is renewable as it is a C impersonal beginning of energy. When a works is designed for working merely with biomass it is called dedicated biomass power workss. However, biomass can be burned with coal in bing coal power workss. These are called co-firing workss and are one of the most cost-efficient agencies of change overing biomass to electricity at big graduated table. This method makes usage of the bing substructure of the coal works and therefore it reduces the entire investing. The different co-combustion design constructs are shown in this figure. Co-firing can be direct, with biomass and coal being fed into the same boiler, or indirect, where a pre-treatment like gasification is carried out prior to the burning in the chief unit. In parallel burning, biomass and coal burning are separate and the boilers are connected merely on the steam side. Presently most biomass electricity coevals is based on burning. The graduated table of operation is a really of import factor for the efficiency. The efficiency tends to be in the scope of 18 % to 33 % in systems bring forthing from 10 to 50 MW. The maximal efficiencies could make about 45 % in big graduated table workss bring forthing more than 100 MW. In co-firing workss, efficiency of 39 % can be reached. Now let ââ¬Ës speak about gasification in biomass power workss. A typical diagram of a biomass gasification procedure combined with power coevals is shown in this figure. In this illustration, biomass is first dried and so injected into the gasifier. The ensuing biogas is purified in a cleansing system. The purified biogas is so utilized in the conventional Combined ââ¬â Cycle Gas Turbine ( CCGT ) power works, to bring forth electricity. The biogas produced in the gasification procedure can besides be used in burning engines ( 10 kilowatt to 10 MW ) with efficiency of 30 % -35 % . At larger graduated tables ( & gt ; 30 MW ) , where gasification-based systems are coupled with combined gas and steam turbines the efficiency increases up to about 45 % . There are two others procedures which can be used to bring forth electricity from biomass but they are still in a pre-commercial phase. The first of them is Pyrolysis which is a thermochemical decomposition of organic stuff at high temperatures 325Aà °C to 500Aà °C in the absence of O, bring forthing gas and liquid merchandises that could be used in power coevals units or upgraded to transport fuel. This procedure besides produces a carbon-rich residue called biochar and one of the of import facets of biochar is that it is a natural fertilizer that can be used to better dirts quality, which can potentially increase energy harvest productiveness. The 2nd one, anaerobiotic digestion is a natural biochemical procedure in which microorganisms interrupt down the organic stuff, in the absence of air, to bring forth biogas ( chiefly a mixture of around 60 % methane and 40 % C dioxide ) . Anaerobic digestion is a procedure suitable for utilizing wet biomass, organic waste or carnal waste to bring forth power coevals on site. There are a figure of engineerings that support the transition paths of biomass feedstocks into energy. Drying is the most important because High wet content needs to be reduced to increase the net calorific value of the biomass, besides to cut down conveyance costs, and to better burning efficiency and the overall economic sciences of the procedure. Biomass such as agricultural and forest residues can be left in tonss on the harvest home site for deceasing, but particularly in humid climes, or parts with heavy snow autumn, this will non be sufficient to acquire to really low ( & lt ; 20 % ) wet content. Covering biomass hemorrhoids with rainproof sheets is a common step that helps accomplish low wet content and avoids decay of the biomass. In some instances, biomass feedstocks need to be actively dried before transition into utile energy. This can be executable from an economic and environmental point of position if waste heat is used, but to utilize fossil energy for drying biomass is questionable from both an economic every bit good as sustainability point of position. Pelletisation and briquetting Both pelletisation and briquetting are commercially available engineerings to automatically compact biomass. Low quality wood is the major feedstock for production of wood pellets, whereas briquetting is normally used to distill agricultural residues. Pellets are frequently used for long-haul conveyance of fuels for big graduated table usage, for illustration for co-firing in coal discharged power coevals workss. Cleaning The gas obtained from gasification contains drosss and particulates that need to be removed before utilizing it in power workss, because these contaminations can lend to eroding, corrosion, and loss of strength in the gas turbine constituents. Conventional methods for taking contaminations from biogas typically rely on chemical or physical cleansing processes runing at temperatures of 38Aà °C or less. When cooled to this degree, about all of the steam nowadays in the syngas condenses and the contaminations are removed. But so the gas has to be reheated. So, this procedure is non effectual for gas power workss and that ââ¬Ës why there is another engineering that is comparatively new and is called Hot gas killing where the cleansing procedure is carried out at high temperature, so that cut down this efficiency loss and better the gasification works ââ¬Ës commercial viability. The disadvantages of the hot gas killing engineering are that operational experience is limited, it has higher costs, and it adds complexness to the procedure ; nevertheless, it is considered to be the technologically more advanced pick for new dedicated biomass workss. BECSS CCS engineering is chiefly discussed in the context of avoiding CO2 emanations from dodo fuels, but the this could besides be used in bioenergy transition workss. The thought behind bioenergy with CCS ( BECCS ) is that capturing and hive awaying the CO2 emitted during bioenergy coevals provides the possibility to take ââ¬Å" impersonal â⬠Carbon dioxide from the ambiance, therefore supplying negative emanations. CO2 impersonal procedure Clean and dependable power beginning if sufficient biomass is available Way to dispose waste stuffs that otherwise would make environmental hazards. Social and economic impacts are besides of import factors in the overall impact of bioenergy production. Bioenergy deployment has considerable possible to make employment in the agricultural and forestry sector and along the supply concatenation, and therefore to profit rural communities. This facet is peculiarly of import in developing states, where much of the population depends on agribusiness for their support. In these states, bioenergy frequently provides energy in rural countries, and there is considerable possible to heighten this function by bettering the efficiency of bioenergy usage and making new, sustainable supply systems for biomass feedstocks. Main barriers confronting enlargement of biomass for power coevals are high costs, low transition efficiency and feedstock handiness. As any new engineering, biomass power coevals requires presently in most instances some degree of fiscal support. In the long term, bio-power potency will depend on engineering progresss and on competition for feedstock usage, and with nutrient production for cultivable land usage. Long-distance transit reduces economic and environmental attraction of biomass. Hazards associated with extended usage of biomass relate to intensive agriculture, fertilisers and chemicals use and biodiversity preservation. Certifications that biomass feedstock is produced in a sustainable manner are needed to better credence of public wood and lands direction. The usage of energy from biomass day of the months back to the first clip a fire was lit from the burning of wood. Prior to the industrial revolution, biomass was used for all of our energy demands. Up until the 1880s wood was used for 91 % of all our energy requirements.A 1890. Coal began to displace wood used in steam coevals. 1980s. High oil monetary values and dependance created new involvement in biomass energy, biomass power workss were built in North America and a big biomass power industry rapidly developed in California. By 1985, California had 850 megawatts of installed biomass power capacity. 1990s. Governments take a greater involvement in utilizing renewable energy, such as biomass, to diminish nursery gases and other emanations. 2000. A study of 133 states by the International Energy Agency shows that the biomass portion of entire energy ingestion is 10.5 % Presently, bioenergy electricity is chiefly generated through steam power coevals, including co-firing workss. Electricity supply from biomass has been increasing bit by bit since 2000 and in 2010 biomass provided around ( 280 TWh ) 1.5 % of universe electricity production. Power coevals from biomass is still concentrated in developed states, but for illustration China and Brazil are besides going of import electricity manufacturers in peculiar from agricultural residues thanks to back up programmes. The theoretical accounts established in these states could besides go a feasible manner to advance bioenergy electricity coevals in other non-OECD states with similar conditions.â⬠¦Harmonizing to the International Energy Agency roadmap, universe bioenergy electricity coevals will increase by more than 10 times from around 290 TWh in 2009 to 3100 TWh in 2050 and could supply around 7.5 % of universe electricity coevals, compared to 1.5 % today. The usage of biomass for power coevals v aries between parts, depending on biomass handiness, transition costs, and the handiness of alternate low-carbon energy beginnings. China histories for the largest portion ( 920 T Wh ) of entire bioenergy electricity coevals in 2050, followed by OECD Americas ( 520 T Wh ) . Other parts besides have considerable coevals degree in 2050 such as OECD Europe ( 370 T Wh ) , Other Developing Asia ( 570 T Wh, of which 250 TWh in India ) , Eastern Europe and former Soviet Union ( FSU ) ( 280 TWh, of which 170 TWh in Russia ) and Central and South America ( 240 T Wh, of which 190 TWh in Brazil ) , some ( e.g. Eastern Europe and FSU, China ) get downing from a really low footing.â⬠¦
Saturday, September 14, 2019
Psychology, IT and Individualism Essay
As information technology continues to develop with more people getting exposed to it, numerous changes are also taking place the field of psychology. Previously, many IT analysts frequently argued that psychology was taking longer than enough to implement and adopt technological advancements. However, recent researches indicate that the practices and methods applied in psychology have greatly transformed as a result of changes in information technology. First, the internet has been one of the major latest trends in psychology; it is highly associated with psychopathology (Wilson 2004). For instance, depression and loneliness have often been connected to the excess use of the internet since it results to addiction. Secondly, there is the use of information technology in counseling and psychotherapy. This is currently being done via the internet; this has resulted to some lack of privacy and confidentiality as well as loss of effectiveness in the practice since some important features such as facial expression and verbal expression has been lost (Wilson 2004). IT is also applied in research and development in psychology to enhance further growth and generation of useful knowledge. For instance, the authors of the current DSM IV-TR applied computerized criteria in revising the classification of disorders in the manual to come with a less flawless criterion of categorizing disorders and disabilities. Using IT, todayââ¬â¢s psychotherapists have been able to make numerous improvements in the way through which they can reach, counsel and correspond with their clients (discussed in the next section) (Azucena, Hunter, 2001). The growth of Psychotherapy Psychotherapy refers to private individual counseling by professional psychotherapists. As a highly growing trend in psychology, psychotherapy is used by psychotherapists to assist them in developing deliberate interpersonal relationships with their clients as a strategy for helping the patient to improve their well being. The trend applies many modern techniques of building closer relationships with the patients such as face to face dialogues, home phone calls and regular visits of the therapist to the client (Azucena, Hunter, 2001). This trend is basically aimed at improving the mental health of the patient through interpersonal relationships. This represents a great shift in the nature of counseling psychology, psychiatry, occupational therapy, clinical psychology and other related fields in psychology. In essence, psychotherapy is not a new trend in the field of psychology since over the years, people have received private reassurance and counsel from others; what is new and becoming increasingly famous in psychology is the application of modern and deliberate professional techniques in psychotherapy. Such psychotherapeutic techniques include online counseling whereby a therapist handles client personally through creating client accounts where he can easily relate with the client on one-on-one(but not face-to-face) bases (Tredinnick, Fowers, 1999). Most of the new psychotherapeutic techniques are possible because of the advancements in the use of information technology in the field of psychology as discussed above. For instance, therapists encourage clients to use social networks to be able to communicate easily with them and their families. In addition, they also approve the use of phone calls whereby clients are free to call their physicians at any time of the day so that they can discuss their issues at convenience. However, modern psychotherapy is not without a number of flaws. Recently, concerns have greatly risen concerning the advancement of individualism in psychotherapy (Tredinnick, Fowers, 1999). Psychotherapy encourages individualism on both the therapist and the client. Individualism is a term used in psychology to refer to ways through which people recognize themselves only and concentrate on individual goals as opposed to collectivism. In this sense, psychotherapist no longer view psychotherapy as a collective discipline that require combined efforts with other experts in the field since they are in a position to carry out counseling and psychiatry without involving anybody elseââ¬âthey can visit their clients at home, chat with them online and make home phone class with them. This has resulted to a great decline in the success of psychology as a collective discipline (Tredinnick, Fowers, 1999; Azucena, Hunter, 2001). Conclusion The use IT in psychology and the advancement in psychotherapy are important developments in psychology and should be highly encouraged. However, it is upon therapists and other psychological professionals to ensure that this new trends are used effectively to prevent the decline evident in cooperation among professional bodies in the field of psychology due to individualism. References Azucena, P. G. , Hunter, H. G. (2001) Redefining Therapeutic Success with Virtual Reality Exposure Therapy, Cyber-psychology & Behavior, 4(3), pp. 484-489. Fowers, B. J. , Tredinnick, M. G. (1999). Individualism and psychotherapy; are psychologists leading or following individualistic trends? Counseling, Psychology Quarterly, 12(3): pp. 303-313 Wilson, J. T. et al (2004). Current trends in psychology and the behavioral sciences. University of Pittsburgh press: Pittsburgh, PA.
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