Friday, June 7, 2019
Nuclear Energy Essay Example for Free
Nuclear Energy EssayThere are many advantages and disadvantages of using thermo atomic originator. Nuclear power is state to prevent power outages that happen in areas without nuclear power. For an example, if we were using hydro galvanicity and the dam suddenly malfunctions, then we wont have electricity until some iodine fixes the dam, and that would be difficult if it happened in the middle of the night. However, on the opposite hand, nuclear power is also considered toxic and it pollutes the Earth with harmful and deadly go through. Here are a few reasons why we should and should non use nuclear power.One of the reasons why we should use nuclear power is that it doesnt pollute like coal and other fossil fuels. Scientists have said that using nuclear power is used to power electricity in most homes. They have also been saying that nuclear power tend to work better than using fossil fuels, gas power, and hydroelectric power. Since scientists are saying it works better, th an we preempt use more nuclear power than using fossil fuels, gas power, and hydroelectric power. Another reason why we should use nuclear power is that scientists have said that it is possible to fork up a high amount of electrical energy in one single nuclear power plant unlike coal, gas, hydroelectric power plants since they contain a few to power electricity. This is important because it costs more to build a nuclear power plant than to build a coal, gas, or hydroelectric power plant. That way, we can save money by building one nuclear power plant instead of a few coal, gas, or hydro electric power plants. One more reason why we should use nuclear power is that scientists have been saying that the affect of global warming because of nuclear has been relatively little compared to coal, gas, and hydroelectric power. If we keep using nuclear power for electricity and other good uses, then in that location would be less global warming, alone if we start to use more and more fo ssil fuels, then global warming will keep increasing in the future, so to prevent this, we can use nuclear energy.One of the reasons why we should not use nuclear power is that nuclear power is that nuclear energy releases radiation sickness such as alpha, beta, and gamma radiation. Alpha particles can cause skin injuries similar to severe burns, beta particles can travel into the body and damage cells, and fin every last(predicate)y, gamma rays can go to sleep intense energy to the cells and cause severe damage. Radiationfrom nuclear energy can wipe out the human generation, since mutation usually occurs when a soul is affected by radiation. In order to prevent this from happening, we shouldnt take chances and use nuclear energy. Another reason why we shouldnt use nuclear power is because it takes many years for it to decay. Unlike coal, gas, and hydroelectric power, once you use it, it is not done. After a point where it has no more nuclear power, there are still radioactive wav es in it that will still damage your cells. After the half-life of the radioactive element occurs, which could take a long time, totally half of it has decayed. Nuclear energy can help, but later on we would have to dispose the nuclear waste to decay in a extraneous location. If we need remote locations to dispose nuclear waste, then one day we would run out of those areas, and possibly half of the world will be not be accessible to humans due to nuclear waste occupying the areas.One more reason why we shouldnt use nuclear power is that one of the types of nuclear energy, nuclear fission produces high amounts of nuclear waste. Scientists have been saying that if we use nuclear energy, then we should be disposed off at a safe place since they are extremely hazardous and can leak radiation if not stored properly. If the wastes somehow get into the freshwater and saltwater systems, then all the sea animals will get affected, and we wont be able to drink the water from the freshwater. Another type of nuclear energy, nuclear fusion doesnt produce any nuclear waste unlike nuclear fission, but it is really hard to make, so since it is hard to make, it wont be steadying for everyday electricity. In conclusion, there are many advantages and disadvantages against nuclear energy, but I think that as long as we keep the nuclear power plant is in a remote location where no one can go and get affected, we can use nuclear energy. When the nuclear waste is produced, then we can dispose it off at a safe place since its extremely hazardous and can leak radiation if not stored properly. If we are going to use nuclear energy, then we should handle it carefully even if it is for electricity because if it is misused, then people who are affected by the radiation from the energy will have mutations or possibly even die.
Thursday, June 6, 2019
French Education System Essay Example for Free
French Education System EssayIn France, education has a clear goal the system must always produce a group of well-educated individuals with a common culture, language and abilities that can then table service the State. The French educational system has a very large emphasis on content, cultur eithery specific knowledge, scientific and mathematic knowledge. The system is designed to serve the necessarily of the state the individuality and originality are not considered worth while values The French Republic has 60 one thousand thousand inhabitants, living in the 22 regions of metropolitan France and four overseas departments (1. million). Despite the fact that the population is growing slightly (up 0. 4% a year), the rate and proportion of young people under 25 are, however, falling there are now fewer than 19 million of them in metropolitan France, i. e. 32% of the total population, compared with 40% around 1970 and 35% at the time of the 1990 census.France is seeing a slow aging of the population less marked however than in other neighbouring countries (Germany and Italy), especially as the annual number of births is currently increasing slightly. 5 million pupils and students, i. e. a quarter of the population, are in the education system. Just over 2 million are in higher education. In 1999, Frances GDP was close to FF 9,000 billion (EUR 1,330 billion), i. e. FF 150,000 (EUR 22,000) per inhabitant. Of this total, just over FF 600 billion (EUR 95 billion) were devoted to initial or continuing education 7. 2% of GDP. As far as school education sp closure is concerned, France is in a middle position, behind the Nordic countries (Sweden and Denmark), but fairly significantly forwards of Italy and Japan.France has a workforce today of 26 million, of whom fewer than 2 million are unemployed the unemployment rate recently fell to below 9%. 6% of the labor force (about 1. 5 million jobs, including 1 million civil servants and local government officers) are undergoing training. Educational Structure Around 13 million pupils attend school in France.The system is a unified one, whose present general structure (primary schools, colleges, lycees) was gradually put in place during the 1960s and 1970s, ending the formerly more compartmentalized system which was based on a clear separation between rimary and secondary education. Since the 1970s, France has also had an outstanding record with view to the development of pre-school education all 3- to 5-year-olds can go to nursery classes. Since 1967, school attendance has been compulsory for those from 6 to 16 years of age. France has 60,000 primary schools catering to pupils during their basic five years of formal education the first three years (CP cours preparatoire cours elementaire 1 and 2) provide a grounding in the basic skills. The next stand for CM1/CM2 (cours moyen 1 and 2) takes the children up to the end of primary school.Secondary schooling is divided into two successive stag es, known as cycles. From 11 to 15 years, almost all children now attend a college, taking them from form 6 (sixieme) to form 3 (troisieme) (1). Since 1975 there has been a single mixed-ability college for all pupils regardless of their level of achievement. after(prenominal) form 3, they move onto a general, technical or vocational lycee. These prepare pupils for the corresponding baccalaureatexaminations (referred to as le bac), which they normally take at the age of 18.
Wednesday, June 5, 2019
The Reign Of Charlemagne
The Reign Of CharlemagneWhy Was The Reign Of Charlemagne So Important In The Development Of The Early knightly Monarchy?Charlemagne or Charles the Great was born on the 2 April 748 AD, the son of Pippin the King of the Franks. At the time of his accession, the Frankish kingdom was already the most important force-out in Europe. However, that power and prestige was increased greatly by Charlemagne during his reign, in which he came to rule the vast majority of Western Europe. Charlemagnes power and prestige culminated on Christmas Day 800, when he was cr h grey-haireded Imperial Emperor by Pope Leo III. This act was incredibly significant as it founded the empire that would be cognise as the Holy Roman Empire, an empire that lasted for over a thousand years. As a result of the immense power Charlemagne had, he has been often been referred to as the father of Europe. eventually, Charlemagne was the founding father of the French and German monarchies, a recognize player in the spre ad of Christianity throughout Western Europe, and ruled over an empire, the likes of which had not been seen since the Roman era.Charlemagne instigated various administrative reforms throughout his empire that were key in the development of the untimely knightly monarchy. One of Charlemagnes foremost concerns was maintaining unity within his empire. In 802, two years after his imperial coronation, Charlemagne required the entire population of the realm to swear an oath of loyaltyall people were expected to keep up Gods commandments, to respect all the emperors possessions, to acknowledge his protection over the churches and the weak, especially widows and orphans, and finally to obey imperial commands. He Charlemagnes demands of loyalty were a way of exerting a trend of control and authority over a vast empire.Furthermore, the same year as Charlemagne introduced the oath of loyalty, he also set about bringing in new legislative reforms, which are seen as being key in the develo pment of the former(a) medieval monarchy. For the first time in history a king wrote down the laws of his kingdom. Charlemagne recorded the laws of the Frankish, Frisian, Saxon and Thuringian people. He also corrected the defective laws of his people, rewriting and removing laws he deemed to be vicious and useless, and adding to them where it was needed. Certainly this was a key reform, as it enabled law to have a more central authority, and aided the spread of the knowledge of law within the empire, fundamentally, what was right and wrong. To a certain extent, he allowed for differences on law, within the res publicas of his empire. However, Frankish law for certain had its influence throughout the region. Furthermore Charlemagne required that all leading members of society within each province hear their laws read aloud in their own language. Thus, aiding the implementation of law doment throughout the Frankish empire.Charlemagne sought a more civilised empire, founded on Chris tian values, and one of his key concerns was not only lowering rates of crime but also a move remote from the more personalised fetching the law into their own hands way of dealing with criminals that had existed for hundreds of years, to a more structured scheme of law enforcement and criminal punishment. Charlemagne introduced legal cases and a juridic system within each district that consisted of a count passing judgement and delivering sentences. This movement was a key component of the development of other(a) medieval monarchy, as some(prenominal) the French and German monarchies, after the collapse of the Frankish empire, followed this more structured judicial system, and it could be argued that Charlemagne founded the beginnings of a judicial system, the likes of which are in universe of discourse in western civilisation today. FurthermoreCharlemagne established the office of the so called reprimandary witnesses who were required to bring crimes to the attention of the court if the victims did not do so themselvesThus, Charlemagne took it upon himself to enforce justice within his empire, and by establishing these offices his aim was to see the criminal members of society reap the rewards of their actions, even if victims themselves did not desire to carry the criminals actions forwards. However, such matters are not as black and white as Charlemagne imagined them to be, and it is debatable as to what extent Charlemagne was able to fulfil his goal. Nonetheless Charlemagnes judiciary reforms were key in the development of early medieval monarchy as many monarchs sought inspiration from Charlemagnes founding judicial system basis, and they also encouraged a more civilised society in the early medieval ages.Charlemagne certainly sought to improve the administration of the empire as a whole, reforming various aspects of administration. One of his reforms related to his persistent aim of exerting a great level of control over his empire. He establishe d middle authorities in each region, to oversee local officials. Thus, in a sniff out Charlemagne inaugurated a form of local government. However, he amended this system over the years, he grew distrustful of those he had sent to oversee, as he believed them to be bluff to bribery. Hence, he instead chose archbishops, dukes, and abbots generally members of high nobility, whom he did not believe to be open to bribery. It can be said that a key discipline of Charlemagnes reign was justice. Charlemagne wanted it not only for himself but also for any loyal subject of his empire, as exhibited through his judiciary reforms and distaste for subjects whom used their positions for their own selfish benefits.In Einhards Vita Karoli Magni or Life of Charlemagne, Einhard states how Charlemagne also made reforms relating to the language of the Franks He began a grammar of his native language and the history of his people he had the old rude songs that celebrate the deeds and wars of the anci ent kings written out for transmission to posterity. Thus Charlemagne was keen to preserve the history of the ancient kings.Furthermore Charlemagne had an important constituent in determining the immediate economic future of Europe. He got rid of the gold up-to-dateness and implemented a new silver currency. Additionally, Charlemagne standardised currency throughout most of Europe, abolishing many of the local currencies in existence. This monetary standard remained the basis for the currency for a long time. Hence, Charlemagne instigated economic reforms that were key to the development of the early medieval monarchy as he standardised currency throughout Europe, and implemented changes that remained in place in Europe for a very long time.The Carolingian renaissance is also believed to be a requisite to the development of the early medieval monarchy. Similar to the renaissance that occurred in the early modern period, it was characterised by the re discovery of ancient roman wor ks, the flourishing of art and literature. Charlemagne was a very keen advocate of education, even returning to education himself, although he never learnt to write. He did however study grammar, logic and astronomy. Furthermore, some of the earliest manuscripts still in survival today are from the Carolingian era.Charlemagne also introduced the use of the classical Latin language as the language of scholarly study Thus, the West saw the development of a pure language, which was used almost exclusively by the learned, and from which the fancy languages grew increasingly distinct Hence, he increased the availability of education within his realm, increasing monastic schools. Therefore, Charlemagnes keenness for education was important to the development of the early medieval monarchy as it lead to a period of greater emphasis on education, a pattern that following monarchs were keen to emulate, and ultimately led to a greater number of educated persons within western civilisation.Ch arlemagnes reforms influenced nearly every corner of society, including the Church. Charlemagne was an extremely pious man and sought to be the ideal embodiment of both a Christian man and King. Charlemagne asked the Pope to send him texts on church law. This Dionysio-Hadriana was used enthusiastically in the Frankish kingdom. By doing this Charlemagne encouraged future monarchs to absorb a more scholarly than blind approach to the Church. Charlemagne was also very interested in Church music and encouraged the spread of proper church liturgies throughout his empire, taking a personal interest in papal music, and banning melodies such as those found in Milan.Charlemagne also introduced changes to the organisation of the troops service. Obligation to military service of the empire was based upon personal wealth and Charlemagne instigated reforms that would make it fair for those obliged to join the military, based on the individuals wealth. Charlemagne ordered that every tenant with three to five so-called hides (homesteads), as well as the holders of fiefs, were required to serve against the enemy. Many monarchs followed these reforms in the early medieval period.In conclusion, Charlemagne was certainly a founding father of Europe. He strove to implement justice in his empire and he instigated reforms in almost every important aspect of early medieval society. Charlemagnes reign was a period of change for Western Civilisation. However, it is foolish to assume that all these reforms were greatly successful, as not all were, for example Charlemagnes judicial reforms. However, early medieval monarchs followed Charlemagnes reforms, as they were eager to reach the level of power and prestige, which Charlemagne had possessed, Charlemagnes reign saw the emergence of Western civilisation, a civilisation that moved away in terms of religion, currency and thought from the East. Furthermore, Charlemagne made it easier for other early medieval monarchs to govern and hand le their kingdoms, for example his judicial reforms made law enforcement an easier business for future monarchs, as he had recorded laws in a written form and implemented a sort of court system throughout his empire. Ultimately Charlemagnes reign was not only very important in the development of early medieval monarchy, but also important in the development and patterned advance of western civilisation. His reign has no doubt affected the world in which we live today.BibliographyMatthias Becher, Charlemagne (London second Ed, 2003)Einhard, The Life of Charlemagne, translated by Samuel Epes Turner, (New York, 1880)Charlemagne, Wikipedia, http//en.wikipedia.org/wiki/CharlemagneMatthias Becher, Charlemagne (London 2nd Ed, 2003) p. 19Matthias Becher, Charlemagne (London 2nd Ed, 2003) p. 99Matthias Becher, Charlemagne (London 2nd Ed, 2003) p.100Matthias Becher, Charlemagne (London 2nd Ed, 2003) p.105Einhard, The Life of Charlemagne, translated by Samuel Epes Turner, (New York, 1880) p. 11Matthias Becher, Charlemagne (London 2nd Ed, 2003 p.106Matthias Becher, Charlemagne (London 2nd Ed, 2003 p.106Matthias Becher, Charlemagne (London 2nd Ed, 2003 p.108Matthias Becher, Charlemagne (London 2nd Ed, 2003 p.108Einhard, The Life of Charlemagne, translated by Samuel Epes Turner, (New York, 1880) p.11Einhard, The Life of Charlemagne, translated by Samuel Epes Turner, (New York, 1880) p.11Charlemagne, Wikipedia, http//en.wikipedia.org/wiki/Charlemagne accessed 31 August 2009Matthias Becher, Charlemagne (London 2nd Ed, 2003 p. 112Charlemagne, Wikipedia, http//en.wikipedia.org/wiki/Charlemagne accessed 31 August 2009Matthias Becher, Charlemagne (London 2nd Ed, 2003 p.116Matthias Becher, Charlemagne (London 2nd Ed, 2003 p.115Matthias Becher, Charlemagne (London 2nd Ed, 2003 p.113
Tuesday, June 4, 2019
Analysis of Wangero Leewanika Kemanjo (Dee) in Everyday Use
Analysis of Wangero Leewanika Kemanjo (Dee) in Every twenty-four hours UseWhere Must angiotensin converting enzyme FitAnalysis of Wangero Leewanika Kemanjo (Dee) in Every twenty-four hour period UseWhat make the Black military unit strawman of the 1960s and 70s such a powerful force, and why did it start in the first place? Author Russell Rickford explains in We argon an African People Independent Education, Black Power, and the Radical Imagination, what Pan-Africanism means. The definition consists of rethinking African-American identity not in terms of being a minority or racial group, but as an African people. The movement was grounded in the importance of cultural rebirth to a people who were deemed unworthy of moral treatment, excluding them from the label of human. They did not know anything nor were aware ab emerge their African heritage. In Alice Walkers story Everyday Use she describes two sides of the same coin when it comes to heritage. Maggie, who stays at home with m ammary gland and lives their heritage with traditions which are passed d give. And Dee, who becomes enthralled with the concept of African-nationalism, practicing new-made habits which alter her psyche. This leads Dee to denounce her recent heritage, excluding Mama and Maggie for being uneducated and categorizing the objects used every day as priceless folk-art.With the fight for desegregation of schools and the civil rights movement of the 1970s, African-nationalism was born. This is the time period when Dee, who was college educated, where the trend originated, had a new-found outlook on her African roots. So often so that she changed her outward appearance and name. When Mama inquired on why she changed it to Wangero Leewanika Kemanjo, Dee simply replied with Shes dead. I couldnt bare it any longer, being named after the people who oppress me.(27) fox by the concept of the name change, Mama told her she was named after her aunt Dicie and that Dee was handed down through the g enerations. Wangero, getting tired of the conversation, jumped to the conclusion that somewhere down the melody her ancestor was a slave to a white family and thus gave her a white name. Many outside sources such as The Nation of Islam encouraged Africans to withdraw from their slave names, their leader Elijah Muhammed writes You must remember that slave-names will keep you a slave in the eyes of the civilized world today. You have holdn, and recently, that Africa and Asia will not honor you or give you any respect as long as you are called by the white mans name.Along with changing her name, Wangeros attire alter as well. Straight hair, for Africans was a sign, another step towards assimilation into white society. Too more effectively exclude herself as an independent black womanhood Wangero grew out her afro. To Africans it was a symbol of defiance and repossession of her ancestral identity, embracing who they were naturally without being categorized as undesirable for their lack of straight fine hair. She dolled up herself in a long flowing bright dress that looked a lot like a traditional African garb and instead of utter hello she greeted Mama with the African term Wa-su-zo-Tean-o. The introduction to the new and improved Dee attests to the psychological process of morally separating herself from the past generations and reclaiming her Blackness. This includes wanting to take items from Mamas house in order to display them in a show and tell way further amplifying what she had to all overcome.We are lead to question Dees sincerity when it comes to the acquisition of the items. Mama, our narrator, reminds us on how Dee hated the childhood house they used to live in and was joyful when it burnt down. Dee was embarrassed by Mama and the house, not wanting to bring friends over for introductions. She also tells us that when Dee was first going away to college, she offered her the very same quilts she now wanted to take and cherish. At the time, Dee ab ruptly refused them claiming they are old-fashioned, out of style. One can argue that the new-found appreciation for the family heirlooms is dear part of the trend. That Dee can be seen as falsely affirming herself and becoming manipulated by the movement. Seeing that is it cool to have lived the struggle, that she came through by showing off her heritage through the art of hand stitched quilts made by her aunt. It seems as if she wants to gain respect from others following the movement by hanging and using these objects as art pieces rather than the circumstances onto why they were made. Furthermore, at the beginning of the story, she snaps a picture of Mama and Maggie on the take care porch. This is done after Mama describes herself as a large, big-boned women with rough, man working hands, one of the reasons why Dee never brought anybody over. This is done to further disrespect Dees own childhood, using it as a sort of show and tell, objectifying Mama and Maggie grouping them i n the same category as the quilts, perhaps because she has missed out on the struggle of her heritage not learning the traditions of her ancestors.Dee, as Mama has lead us to believe, has never truly fit in. Always having her style even when she was young. deprivation away to college although has educated her academically, has left her out of learning the skills of her heritage like Maggie has. Quilting, field work, and all things Mama and Maggie have to deal with on a day to day bases is left untouched by Dee. This only solidifies Dees longing to be part of a culture and heritage she may feel left out of. She feels obligated to present herself as part of the movement with the objects she wants to display. An African-American woman taking back her black identity. Trying so hard to claim the ranks on the social ladder leaves Dee unfeeling towards Mama and Maggie. This is especially seen when Mama refuses to give Wangero the quilts. Dee storms out to the car saying you dont understan d your heritage.Understanding the character of Dee is complex. Because of the time period, Dee seems to be manipulated into a movement. While it is just, Dee resents her childhood forgetting where she came from. This in turn, leads her to denounce her recent heritage, demeaning Mama and Maggie and trying to fit within this movement by displaying folk-art. It is sad to see Dee pitying them as she gets into the car saying to Maggie Its really a new day for us. But with the way you and Mama live youd never know it just for one last verbal stab in defiance of her not getting her way. However, I end up feeling sorry for Dee, for within this new world she is living in, one must have asked the question where do I fit in?Work CitedChristian, Barbara T. Everyday Use and the Black Power Movement. 11th ser. (1944) n.pag. An Introduction to Fction. Web.Baker, Houston A. Stylish Vs. Sacred in Everyday Use. 11th ser. (1985) 466-468. An Introduction to Fiction. Web.In search of African America One collectors experience. An exhibit at the Herbert Hoover presidential museum. 21 Mar. 2004. Web. 1 Mar. 2017.B. Glaser, Linda, and AS Communications. The Black Power Movement and Its Schools. N.p., 2 Feb. 2016. Web. 1 Mar. 2017.Franchi, Elena. What is Cultural Heritage? Khan Academy, 2014. Web. 1 Mar. 2017.Makalani, Minkah. Pan-Africanism. African Age. Rutgers University, 2011. Web. 1 Mar. 2017.
Monday, June 3, 2019
Impacts of Salt on Water Resources
Impacts of Salt on Water ResourcesIntroduction. control board saltiness, one of the study water crises carry onring around the globe, is the last concentration of total fade out solids (TDS), such as sodium and centilitre, in dents and water (Rose, 2004). coarseness is a critical and prevalent problem affecting Australia, threatening the Australian natural surroundings and the sustainability of productive agricultural knowledge bases (Bridgman, Dragovish, Dodson, 2008 McDowell, 2008). This put up be attributed to naturally high saline levels in the stains (McDowell, 2008 Pannell, 2001). Across the globe, in countries such as in the States, Iran, Pakistan, India and China, large concentrations of table salt have accumulated over time ascribable to rainfall, rock weathering, sea water intrusion and aerosol deposits (Table 1) (Beresford et al., 2001 Hlsebusch et al., 2007). Dry disgrace saltiness, a form of secondary coil common salt, has in particular become a maj or problem worldwide (Beresford et al., 2001). Annually, approximately four trillion hect bes of global farm come is abandoned over collect to excessive salt (Beresford et al., 2001). coarseness is a widespread problem with numerous major social, economic and environmental consequences (Beresford et al., 2001).OutlineThis paper will consider the occurrence and impacts of primary and secondary coarseness on water resources. The discussion will commence by focusing on primary salinity, its occurrence and associated impacts using an example from the Lake Eyre Basin, Australia. The next part of the evidence will discuss secondary salinity, its occurrence and impacts using examples from Katanning Western Australia (WA) and Turkey. Iran and Pakistan will consequently be examined as examples showing the occurrence and impacts of both primary and secondary salinity. Finally the impacts of salinity will be identified and the main arguments of this account summarised.DiscussionPrimary S alinityPrimary salinity is a natural shape that affects soils and waters and occurs generally in regions of the world where rainfall is insufficient to leach salts from the soil and desiccation or transpiration is high (McDowell, 2008). In episodes of high vaporization, transpiration and reduced rainfall, salinity becomes a problem as the volume of water decreases while salt concentrations gain (Bridgman, Dragovish, Dodson, 2008). Approximately 1000 gazillion hectargons, which corresponds to seven per cent of the worlds total dry land area, is bear upon to few extent by salt (Rose, 2004). The majority of the globes saline affected land is influence by primary salinity resulting from natural soil evolution (Hlsebusch et al., 2007). Arid tropical areas, in particular, are subject to potential evaporation that is high than rainfall, which leads to the rising of water to the topsoil where solutes accumulate and salinity advise occur naturally (Hlsebusch et al., 2007). Austral ias arid and semi-arid areas usually have salt present in the groundwater (Table 2) (Bridgman, Dragovish, Dodson, 2008). For example, the River Darling becomes saline during harsh drought terminations and salinity concentrations increase in the Hunter Valley when flow diminishes (Bridgman, Dragovish, Dodson, 2008).Lake Eyre Basin, South AustraliaThe Lake Eyre Basin (LEB), in central Australia, is a largely flat area dominated by semi-arid to arid environmental conditions (Figure 1) (McMahon et al., 2008). The area encounters high evaporation rates and spatially and temporally highly variable rainfall (Kingsford Porter, 1993). Year round, potential evaporation is usually greater than real(a) evaporation with average yearly Class A pan evaporation rates of 3300 millimetres (mm) (Costelloe et al., 2008). Average yearly rainfall in the LEB ranges from less than 200mm in roughly areas, up to 700mm in others, with an annual coefficient of variability spanning from 0.2 to 0.7 (McMaho n et al., 2008). Hydrological conditions in the LEB can vary between prolonged periods of 18 to24 months of no flow, to shorter phases where inundation of slow-moving floods can occur (Costelloe et al., 2008). The portioning of the stable isotopes of water such as d16O/ d18O can be utilised to determine whether evaporation (enriching/fractionation occurs) or transpiration (no fractionation) occurs (Costelloe et al., 2008). In Lake Eyre, the water is sodium and chlorine ion dominated with salinity varying from approximately 25 300 mg L-1 and 272 800 mg L-1 (Kingsford Porter, 1993). The absence of invertebrates and waterbirds in Lake Eyre is thought to be due to salinity from increase evaporation during the dry months (Kingsford Porter, 1993). This salinity is as well said to be responsible for massive fish kills that occur as the lake dries after a flood period (Kingsford Porter, 1993). Samples taken in the LEB showed that there was greater enrichment of the isotopic signatures o f the surface water than the groundwater samples, a product of high rates of evaporation (Costelloe et al., 2008). The Diamantina River catchment, a major indorser of streamflow to Lake Eyre, was found to have hypersaline, 85,000 mg L-1 Cl, residual pools in the channel, with a highly enriched isotopic signature, indicating evaporation (Costelloe et al., 2008). The Neales River catchment in the LEB demonstrated extremely saline groundwater (71,000 mg L-1 Cl) and hypersaline residual pools of 130,000-150,000 mg L-1 Cl (Costelloe et al., 2008).Secondary SalinitySecondary salinity is caused by man made changes to the hydrological cycle either through the replacement of essential vegetation with shallow-rooted vegetation or through the excessive use or inefficient distribution of water in irrigation for agriculture (Beresford et al., 2001 Rose, 2004). Modern anthropogenic land-use practices are increasing the area of salt-affected land, which is a major environmental issue (Bridgman, Dragovish, Dodson, 2008). Estimates of secondary salinity affecting the globe are suggested at around 74 million hectares, with 43 million hectares of that land occurring on irrigated land and the remaining area on non-irrigated land (Rose, 2004). In Australia, areas of the Murray Basin and the Mallee region in Victoria (VIC) and New South Wales (NSW) are affected by dryland and irrigation salinity, while irrigation salinity impacts the Riverina speak out in VIC and NSW and the Riverland Region in South Australia (Beresford et al., 2001).Dryland SalinityDryland salinity is the resultant change in underground hydrology in which native vegetation with deeper roots are replaced by shallow-rooted vegetation, such as agricultural crops (Rose, 2004). This assist causes a decrease in annual evaporation and an increase in the amount of water reaching the water table (Bridgman, Dragovish, Dodson, 2008). The proceeding rise in the amount of water available can then lead to saline water reaching the soil surface and vegetation (Rose, 2004). When this saline water intersects or reaches the surface, waterlogging and salinization of the surface soil can occur due to the accumulation of salts (Rose, 2004). There is an estimated lag time of 30 to 50 years between vegetation clearance and the emergence of salinity (Bridgman, Dragovish, Dodson, 2008). Around a tierce of the areas in Australia that are susceptible to dryland salinity are expected to become saline (Figure 2) (Rose, 2004). Dryland salinity has impacted North and South Dakota in Northern America and the Canadian Western Prairies due to large scale chaff farming in which there is now increasing loss of productivity and rising conclusion rates in a variety of wildlife (Beresford et al., 2001). India, Thailand, Argentina, and South Africa are some of the other countries that experience problems with dryland salinity (Pannell Ewing, 2006).Katanning District, WAIn the Katanning district, extensive clearing of native vegetation has lead to the area being reported as having one of the worst salinity problems in WA (Beresford et al., 2001). The town is located in a low, flat part of the landscape, and is agriculturally centred on crops, such as wheat and canola, and sheep (Figure 3) (Beresford et al., 2001). The initial perennial vegetation, mainly of Mallee associations, has been removed and replaced with the aforementioned crops (Bridgman, Dragovish, Dodson, 2008). Following 1891, there was increased wheat cultivation in the district and land clearing (Beresford et al., 2001). In the early 1900s, the increase of salt in nearby natural water sources was quickly conjugate to the clearing of native vegetation (Beresford et al., 2001). In 2000, records of the Katanning Creek Catchment showed that only 1000 hectares of remnant vegetation remained translating to less than 10 per cent of the catchment being covered (Beresford et al., 2001). It was also discovered in 2000 that 125 hectares of land neighbouring the town boundary was salt affected, the water table was less than one metre from the surface in some areas and older infrastructure were showing evidence of salt-induced decay (Beresford et al., 2001). Groundwater under the township is influenced by the subsurface flow from catchments where extensive land clearing has occurred (Beresford et al., 2001). Dryland salinity in Australia will continue to increase unless farming systems are dramatically altered on a large scale (Rose, 2004).Irrigation SalinityThe application of irrigation can increase salinity levels in soil water, surface water systems and/or aquifers (Van Weert, Van der Gun, Reckman, 2009). Irrigation can also raise water tables, lead to waterlogging, and cause evaporation straightaway from the water table, increasing solute concentration in the soil (Van Weert, Van der Gun, Reckman, 2009). Around the world, the greater part of anthropogenic salinity is associated with irrigated rather than non-irri gated land (Bridgman, Dragovish, Dodson, 2008). A higher amount of land in Australia that is non-irrigated, rather than irrigated, however, is salt-affected (Pannell Ewing, 2006). Bridgman, Dragovish, Dodson (2008) stated that irrigated areas that have their water table within two metres of the soil surface are salinized. horticulture, in which irrigation systems are utilized, is especially prone to salinization with approximately half of the irrigation systems globally affected by salinization, alkalization or waterlogging (Munns, 2002). Countries particularly affected by irrigation salinity include Egypt, China, Pakistan, Iran, India, and Argentina (Hlsebusch et al., 2007).Sanliurfa-Harran Plain TurkeyTurkey faces salinity problems due to large-scale and intensive irrigation, such as in the Harran Plain (Van Weert, Van der Gun, Reckman, 2009). Only 25 percent, or 19.3 million hectares, of Turkeys land surface is usable for agricultural practices, three percent of which is af fected by salinity (Atis, 2006). The main source of soil salinity has resulted from the adverse effects of irrigation water, leading to the formation of high water tables resulting in decreased agricultural productivity and income (Atis, 2006). The Sanliurfa-Harran Plain region is located in an arid and semi-arid climate (Kendirli, Cakmak, Ucar, 2005). In this area, high levels of total dissolved solids have emerged in the shallow groundwater due to excessive and uncontrolled irrigation, waterlogging, rising water tables, and drainage problems (Van Weert, Van der Gun, Reckman, 2009). Prior to the executing of irrigation in the central and southern parts of the Harran Plain, salinity and drainage problems already existed, which were then exacerbated when irrigation was applied (Table 3) (Kendirli, Cakmak, Ucar, 2005). It was estimated over fifty percent of productive agricultural land in the Akcakale Groundwater Irrigations area of the Harran Plain was becoming saline after irri gation, some 5000 hectares (Kendirli, Cakmak, Ucar, 2005). In the towns of Harran and Akcakale, within the Sanliurfa-Harran Plain, increased salinity problems and high saline and sodium soils were attributed to unrestricted irrigation (Kendirli, Cakmak, Ucar, 2005). Within the Sanliurfa-Harran Plain, over 29 percent of soils examined were becoming saline following irrigation (Kendirli, Cakmak, Ucar, 2005).Combined SalinityIn Iran and Pakistan, the salinization of land resources is a major problem due to a combination of primary salinity and secondary salinity (Kahlown et al., 2003 Qadir, Qureshi, Cheraghi, 2008). Thirty per cent of Irans irrigated area and 26.2 per cent of Pakistans are severely affected by irrigation salinity, practically of which may need abandoning (Kendirli, Cakmak, Ucar, 2005 Hlsebusch et al., 2007). Iran and Pakistan mainly endure arid and semi-arid environmental conditions (Kahlown et al., 2003 Qadir, Qureshi, Cheraghi, 2008). Annually, rainfall natio nally averages 250mm in Iran, while average yearly potential evaporation is extremely high, varying from 700mm to over 4000mm (Qadir, Qureshi, Cheraghi, 2008). Approximately 34 million hectares in Iran are salt-affected (Qadir, Qureshi, Cheraghi, 2008). In the northern area of Iran, slight to moderate salt-affected soils exist, where as highly saline soils are present in the central areas (Figure 4) (Qadir, Qureshi, Cheraghi, 2008). Primary salinity in Iran is a result of a combination of factors including the geological composition of the soils refer material, such as halite and gypsum, natural salinization of surface waters due to stream salinity, salinity and the expansion of salinity from wind-borne origins, seawater intrusion, low rainfall and high potential evapotranspiration (Qadir, Qureshi, Cheraghi, 2008). Secondary salinity has been a result of irrigation with saline waters, deficient drainage, unsustainable groundwater pumping, saline aquifer over-exploitation, exces sive irrigation and overgrazing (Qadir, Qureshi, Cheraghi, 2008). Some 4.2 million hectares in Pakistan are severely affected by irrigation salinity (Hlsebusch et al., 2007). Salinization of soils and water in Pakistan are a result of natural climatic characteristics, such as high evaporation, geological conditions and the dissolution of salt bearing strata, waterlogging, intensive irrigation, poor drainage, salinity ingress, inefficient irrigation and inappropriate use of low quality groundwater (Kahlown et al., 2003 Van Weert, Van der Gun, Reckman, 2009). Widespread soil and water salinization in Iran and Pakistan has occurred due to varied combinations of these factors (Kahlown et al., 2003 Qadir, Qureshi, Cheraghi, 2008).ImpactsSalinity can cause tree die back, changes in ecosystems, loss of productive lands, salt bush growth, erosion, saline groundwater discharge and saline surface water (Beresford et al., 2001 Bridgman, Dragovish, Dodson, 2008). The groundwater that rises as a result of dryland salinity can contain relatively high amounts of salts which results in saline seepages emerging where the water table intersects the ground surface (Bridgman, Dragovish, Dodson, 2008). If concentrations of sodium ions are high enough, the physical structure of soils may be completely degraded from salinity (McDowell, 2008). This is due to the collapse of soil aggregates and deflocculation of clay particles compaction then occurs and causes decreased permeability and porosity which restricts water storage as well as slowing internal drainage (McDowell, 2008). Salinity can result in the deterioration of river and stream quality, for example, in the Murray Darling River system in SA, the town of Morgans water quality is expected to exceed the plummy drinking limit of 500 mg L 1 total soluble salts within the next ninety years (Pannell Ewing, 2006). Concentrated salt-affected water can move to surface water systems, infiltrate below the root zone or may reach an aquifer and contribute to a progressive increase in salinity of groundwater, decreasing the water quality (Van Weert, Van der Gun, Reckman, 2009). There can be a greater risk of large-scale water quality problems due to an increase in leakage of saline waters from the impacted region (McDowell, 2008). Increased flood risks have also been identified as an impact of dryland salinity as a result of shallower water tables which can lead to at least a two-fold increase in flood flows (Pannell Ewing, 2006).ConclusionsSalinity is a major problem throughout the world, particularly in arid and semi-arid environmental climates. Primary salinity is a natural phenomenon that affects soils and waters in periods of high evaporation, transpiration, and low rainfall. This process occurs notably in Australia, as well as many other countries, such as Iran and Pakistan. Secondary salinity is human induced from either land clearing or irrigation. Numerous countries experience dryland salinity, suc h as North America, India, Canada, Thailand, Argentina, and South Africa, as well as Australia. Countries that are affected by irrigation salinity include Egypt, Australia, China, Pakistan, Iran, Turkey, India, and Argentina. Generally, salinity causes a decrease in the quality of water resources and can lead to a decrease in quantity, if the water table has move substantially as a result, and increased evaporation occurs.ReferencesAtis, E 2006, Economic impacts on cotton production due to land degradation in the Gediz Delta, Turkey, down Use Policy, 26, pp. 181 186.Beresford, Q, Bekle, H, Phillips, H, Mulcock, J 2001, The Salinity Crisis Landscapes, Communities and Politics, University of Western Australia Press, Crawley.Bridgman, H, Dragovish, D, Dodson, J 2008, The Australian Physical Environment, Oxford University Press, USA.Costelloe, JF, Payne, E, Woodrow, IE, Irvine, EC, Western, AW, Leaney, FW 2008, Water sources accessed by arid zone riparian trees in highly saline en vironments, Australia, Oecologia, 156, pp. 43 52.Hlsebusch, C, Wichern, F, Hemann, H, Wolff, P (eds.) 2007, Organic agriculture in the Tropics and Subtropics Current status and perspectives Supplement No. 9 to the Journal of Agriculture and Rural Development in the Tropics and Subtropics, Kassel University Press, Germany.Kahlown, MA, Chang, MC, Ashraf, M, Hassan, MS 2003, Salt Affected Soils and their Reclamation Research Report 4, Pakistan Council of Research in Water Resources, Islamabad.Kendirli, B, Cakmak, B, Ucar, Y 2005, Salinity in the Southeastern Anatolia Project (Gap), Turkey Issues and Options, Irrigation and Drainage, 54, pp. 115 122.Kingsford, RT, Porter, JL 1993, Waterbirds of Lake Eyre, Australia, Biological Conservation, 65, pp. 141 151.McDowell, RW (ed.) 2008, Environmental Impacts of Pasture-Based Farming, CAB International, Oxfordshire.McMahon, TA, Murphy, RE, Peel, MC, Costelloe, JF, Chiew, FHS 2008, Understanding the surface hydrology of the Lake Eyre Bas in Part 1-Rainfall, Journal of Arid Environments, 72, 1853 -1868.Munns, R 2002, Comparative physiology of salt and water stress, Plant, Cell and Environment, 25, pp. 239 250.Pannell, DJ, Ewing, MA 2006, Managing Secondary Dryland Salinity Options and Challenges, Agricultural Water Management, 80, pp. 41 56.Qadir, M, Qureshi, AS, Cheraghi, SAM 2008, Extent and Characterisation of Salt-Affected Soils in Iran and Strategies for their improvement and Management, Land Degradation Development, 19, pp. 214 227.Rose, C 2004, An Introduction to the Environmental Physics of Soil, Water and Watersheds, Cambridge University Press, Cambridge.Van Weert, F, Van der Gun, J, Reckman, J 2009, Global Overview of Saline Groundwater Occurrence and Genesis, International Groundwater Resources discernment Centre, Utrecht.
Sunday, June 2, 2019
I am Buddhist :: essays research papers
I am BuddhistAn often forgotten essential in our short cosmos we call life is our need for at least a quintessential connection of spirituality for our own subsistence. And as this world we live in, develops into supposed organic evolution and as evolution directs our way of life into a tedious search of happiness derived from money and a person in a modern union barely has a moment for a prayer and time being as impatient as it is, the youth have no seconds to just invest and contemplate the power of a higher being, that a GOD might be the one that governs our destiny and fate and to have a flicker of an egregious where one experiences a religious outlook on lifethe air we breathe turns a little fresher and a load gets lifted saturnine shoulders of stressed mentalities and call it a pre-mature revelation or a pious unveiling of my character but I have encountered such an emotion when I visited a haven called Bodh Gaya. Situated in the most corrupts of states in India, Biharit is an oasis of belief and hope and maybe the only answer and truth to some.Its an nonnatural placement for enlightenment, one might suggest but as a Buddhist, imagining all the struggle and suffering that the Buddha had overcome and all the adversities he had surpassed and of course the common truth he reveals to us and conveys with such meaning in his simple diction is at most overwhelming. At first sight the Mahabodhi temple rest tall among such meagre neighbours, humbled me at once petrifying in some ways and yet it seemed to comfort me all at once. As for the papal tree where Buddha had gained salvation is surrounded with such spirituality that it seemed to bog down upon my shoulders and yet at the same time it uplifted my spirits in the most unexplainable way.The hustling and bustling noises of Indians selling odd trinkets and beggars among the streets are drowned by the Tantric chants of monks praying in union. A pilgrimage that changed the way I thought slightly the youth and I was young too, therefore it basically changed the way I thought.As words are my limits so is word my only limits through with(predicate) which I cannot describe and do justice to the communion that one has to go there and experience for oneself. Nothing is as constant as change and the journey through life does not end until death.
Saturday, June 1, 2019
Effective Foreshadowing in King Lear :: King Lear essays
Effective Foreshadowing in King Lear The first scene of a encounter usually sets up the prefatory themes and situations that the remainder will work with. In Shakespeares play King Lear, the very first scene presents many of the plays basic themes and images. The recurrent imaging of human senses and of nothing, the distortion of familial and social ties, the gradual dissolution of Lears kingship, all make their first appearances in the first lines of Shakespeares play. Much of the imagery in King Lears first scene presages what is to come in the play. Often characters refer to senses, particularly sight, whether as a comment on the necessity of spotting consequences before acting (as Lear does not), or as yet some other of Shakespeares comments (most apparent in Hamlet) on counting. The destruction of Gloucesters look and his subsequent musings (I stumbled when I aphorism (IV.i.19) etc.) are a more graphical presentation of this basic theme which originally appears in Lear s first scene. Goneril declares Lear is dearer than eyesight (I.i.56) to her (though she is the one who later suggests putting Gloucesters eyes out for his treachery). Regan goes further, proclaiming I profess / Myself an enemy to all other joys / Which the most precious square of sense possesses (I.i. 72-74). Crossed in his wrath by Kent, Lear cries Out of my sight (I.i.157), only to be reproved with Kents See better, Lear, and let me still remain / The true blank of thine eye. (I.i.158-9). Lears dialogue with Cordelia on nothing introduces yet another theme in the plays imagery, echoing, among other scenes, some of his later conversations with the Fool (I.iv.130 Can you make no use of nothing, nuncle?) and others. Indeed, King Lear is, in many ways, about nothing. Regan and Goneril seem to offer much in the beginning, but after whittling down the number of Lears knights, they leave him with nothing, and in the end their natural affection comes to nothing as well. Lear is increas ingly brought to nothing, stripped of everything -- kingdom, knights, dignity, sanity, clothes, his last loving daughter, and finally life itself. One of the main signals of the growing chaos of Lears world is the distortion of familial and social ties. King Lear exiles his favorite daughter, Cordelia, for a trifling offense, and those daughters he does favor soon turn against him.
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