Thursday, September 3, 2020

The Definition of an Ideal Mate free essay sample

While we may in some cases vary in what our own meanings of what a perfect mate would resemble, there are maybe, a few highlights which we would all acknowledge such a mate to have. By the day's end we may find that our optimal mate is certifiably not an ideal individual, yet that they do have characteristics which make them ideal for us. A perfect mate is unquestionably one who adores us, however who esteems us as well. At the point when you value somebody you value them as far as possible and profoundly care for each molecule that makes them into a strong being, alongside all aspects of their soul which never tumbles to move you.When your mate values you they notice every little thing about you and are delicate to your requirements. They perceive and make praises about your accomplishments and endeavor to keep you glad inside and out. A perfect mate may not generally be as tall, attractive, and reasonable of face or as well off as you may have from the start wanted them to be. We will compose a custom exposition test on The Definition of an Ideal Mate or then again any comparative subject explicitly for you Don't WasteYour Time Recruit WRITER Just 13.90/page In any case, they will be lovely to your eyes in spite of having a slanted grin or a falter. What you once accepted may be seen as Imperfections will become charming when you discover a mate who is lovely within. It is consistent with state that a wide range of kinds of individuals make up the universes population.We have varying perspectives, assessments, convictions, levels of comprehension and dreams for what's to come. Our Ideal mate however, will think along comparable lines to us thus will shape an obligation of thinking that can just create from sharing significant life esteems. We may as well, share a dream of how we need our lives to advance nearby one another. Needing very similar things will join us and move us toward our objectives. In any event, when our dreams are not actually the equivalent. Our optimal mate will be available to tuning in to what our needs and wants are and are eager to bargain where essential. Above all, our perfect partner, or perfect mate, will make us more than we would be with an inappropriate individual. Rather than taking away from our worth they are probably going to extend our creatures so the whole of our parts Is far more extravagant In amount and quality than It could ever be without them. At the point when we are with them we may find that being with somebody who is so absolutely steady of us permits us to be more interesting, more splendid, more cherishing and minding than we are when alone. Also, whats more is that they will see these characteristics In us whom they reflect back to us, and this In turn will make us progressively sure and cheerful individuals.

Saturday, August 22, 2020

English 103 - Research essay - A Rose for Emily

English 103 - Research - A Rose for Emily - Essay Example â€Å"A Rose for Emily† can be drawn closer in a few different ways by the peruser: as a heartbreaking romantic tale which delineates Emily’s extraordinary love for Homer Barron; as a remark on life in the profound American South as it thinks about the evolving times; as a relentless homicide covered in riddle; and as a mental story of frenzy and separation. Anyway it is drawn closer, the story is without a doubt a grasping bit of fiction which charms the peruser. A few subjects are woven into the story, adding to its wealth. These subjects reflect the attributes of the Old South. â€Å"A Rose for Emily† is a story set in the Old South where prejudice, classism and sexism are an indispensable piece of society. As a story which is set in the profound American South, â€Å"A Rose for Emily† is unavoidably moved by the inalienable bigotry of the southern manors. The agrarian economy of the south relied upon insensitive slave work for benefit in its cotton and tobacco manors. It is generally recognized that, significantly after the destruction of the South and the annulment of subjection, southern culture kept on being portrayed by solid supremacist perspectives. This bigotry waited on for a considerable length of time and African-Americans remained unassimilated into southern culture. In â€Å"A Rose for Emily,† Faulkner capably features this common bigotry through the voice of the storyteller and through his portrayal of Emily’s Negro worker, Tobe. The storyteller, speaking to the Jefferson people group, is softly pretentious of Emily’s hireling. He is seen only as â€Å"an elderly person worker - a joined planter and cook† (Faulkner, I). He isn't seen to be an individual in his own right, however just as far as being Emily’s man-of-all-exchanges. He is coolly alluded to as â€Å"the old Negro,† (Faulkner, I) and â€Å"the Negro man† (Faulkner, IV). The

Friday, August 21, 2020

Case Study of Dell Computer Corporation :: Business Marketing, Case Study, solution

Contextual investigation of Dell Computer Corporation Presentation Michael Dell established Dell Computer Corporation in 1984 with a straightforward vision and business idea †that PCs can be worked to arrange and sold legitimately to purchasers. Michael accepted his methodology had two points of interest: (I) by passing merchants and retail sellers wiped out the markups of affiliates, and (ii) working to arrange extraordinarily diminished the expenses and dangers related with conveying huge supplies of parts, segments and completed merchandise. Its work to-request and sell-direct methodology demonstrated speaking to developing quantities of clients in the mid 1990s as worldwide PC deals rose to record level. In 1998, it was at that point the third producer in the United States with a 12% portion of PC showcase and an about 6% share around the world. The company’s quickest developing business sector for as far back as a few quarters was Europe. In any event, during the Asia financial burdens in the mid 1998, Dell’s deals in Asia ro se 35%. Its deals at the Internet Web webpage were about $5 million per day and expected to reach $1.5 billion every year constantly end 1998. Since 1990, Dell’s stock cost had detonated from 23 pennies for each offer to $83 per share in May1998 with a 36,000% expansion and was the top performing enormous organization at that point. Dell’s head items included work area PCs, note pad PCs, workstations, and servers. Its items and administrations were sold in excess of 140 nations. The deals of work area PCs alone represented about 65% of Dell’s all out incomes while the rest represented about 33%. In mid 1988, the organization has 16,000 workers. Dell’s Background and Vision Dell Computer was first known as PCs Limited in 1984, selling PC parts and PCs under the brand name PCs Limited. Dell’s methodology was to sell legitimately to end clients; by dispensing with the retail markup, Dell had the option to sell IBM clones at about 40% underneath an IBM PC cost. By 1985, the organization was gathering its own PC structures and had around 40 workers. Deals had reached $33 million constantly finishing 1986. Michael Dell tried to refine the company’s plan of action, include required creation limit, and construct a greater, more profound administration staff and corporate foundation while at same time minimizing expenses. It first worldwide workplaces were opened in 1987 and was renamed Dell Computer. In 1998, Dell turned into an open organization, brought $34.2 million up in its first contribution of regular stock. Michael Dell’s vision was for Dell Computer to get one of the best three PC organizations.

Saturday, June 6, 2020

This Is A Reflective Essay About Android Applications - 550 Words

This Is A Reflective Essay: It Is About Android Applications (Term Paper Sample) Content: NameAffiliationDateSELF REFLECTION ON APP REVIEWThe review of this app gives me very distinctive things between the language structures used by young children and those of an adult. Children like vivid demonstration such as pictures. This is actually of great help to them as they teach them non-verbal communication and farcical expression. On the other hand, adults prefer written instructions on an app. They like reading these instructions as a means of direction. In my own opinion, when creating an app meant for children especially those with SLI and ASD, its very important to consider using a lot of images and videos, which they will just enjoy, and at the same time learning some critical aspects of communication. Very brief and few written directions would also serve a great deal. Adult apps would be awesome to them if it has good directives on how to play the game as reading the instructions is the most effective way of communication to them. Children without SLI and ASD can simply play the game of Monster Pet Shop by simply following the instructions. Adults can be guiding them only when they have difficulties understanding some of the instructions. They will simply understand the language used since by first trying to play, they get a vivid meaning of the language. Children with SLI and ASD as well would simply understand the language used by first trying to play the game and getting meaning out of images and videos in the app. With this, just some simple directions from adults will be needed.Knowledge of language convections is critical in social communication. It is evident from the app review that children get some convection while playing the game and this helps them in their social communication. For instance, when they touch the monster different parts and the monster shows different reactions, the child must identify the parts which make the monster happy. This helps the child to develop a caring habit for others. It is also of grea t help to children with autistic disorders.While creating apps, it is important to understand that children have a lower understanding of language code as compared to adults since they have not developed language skills. Creating apps using gestures and simple words is the solution. Children with SLI and ASD would require more usage of gestures and images. By doing this, technology will be serving a great role in facilitating language development of children. To add on this, if we can have our apps facilitating the children share their resources in the games like in the Mons...

Sunday, May 17, 2020

Legal Data Implications Issues - Free Essay Example

Sample details Pages: 1 Words: 327 Downloads: 4 Date added: 2018/12/14 Category Ethics Essay Type Research paper Level High school Tags: Health Care Essay Did you like this example? Tom Beauchamp and James children discovered health care ethics principles in the year 1985. Ethics principles were established to guide in decision making when health practitioners inevitably encountered difficult circumstances concerning patients. The ethical principles are contained in the data protection Act 1998(DPA1998) besides caldicoff principles of an authentic practice on the additional users of the personal data. The ethical have both legal and illegal impact on both parties involved. The Immigration and Naturalization Service (INS) powers were under justice department and also were under the United States labor department from 1933 to 1940. Its functions ceased when most of its features were transferred to new entities. Uncertainty about legal and authentic requirement has remained unanswered up to date (Danley 2010). The two critical implication to address are confidentiality and quality management. Don’t waste time! Our writers will create an original "Legal Data Implications Issues" essay for you Create order Cases against unlimited data overwhelmed the (INS). Health related information requires a high level of restriction. Records confidentiality through security fixed locks cabins should be the best solution. Moreover, cabin keys should be under one staff member management. As a result, patients will have confidence and visit the hospital when need arises since their data is not exposed to a third party. This practice should be impressed, and in case of a computer system, systems should be fitted with passwords and accessed by only authorized individuals. Besides, despite safeguarding the well-being of patients, the idea will have marketing advantage since most patients prefer information confidence. Similarly, data and documentaries should be safely kept. Anyone or individuals or object engendering misplacement of data should try to evade. The idea aims to enhance  Ã‚   accessibility and quick handling when they are required for health care use. Hence, its successful implementing will accord patients trust since it will confirm a high management level. In essence, the Immigration and Naturalization Service ethical data issues should be utilized for our healthcare data management implementations. References Danley, J. V. (2010). SEVIS: The Impact of Homeland Security on American Colleges and Universities. New Directions for Institutional Research, (146), 63-73.

Wednesday, May 6, 2020

The Warnock Report Essay - 943 Words

The publication of the Warnock Report in 1978 caused ground-breaking changes to the education system. It changed the way in which society viewed children and young people with disabilities, and, moved towards a philosophy for an inclusive education (Moore 2009). Warnock (2010) states that many reports and a considerable amount of legislation have emerged since then, These include, 1981 Education Act establishing the recommendation s, The National Curriculum 1988, The Education Act 1993, 1994 Code of Practice on the Identification and Assessment of Special Educational Needs, Excellence for All Children 1997, 2001 SEN and Disability Act, ‘Barriers to Inclusion (Department for Education and Skills 2004) ‘Special Educational Needs: A New Look (2005). In the 2005 review Warnock suggests that there should be no priority made to mainstream or special schools, only the needs of the child, also, either setting should be considered as long as it has provision to support the needs of the pupil (Warnock, Norwich and Terzi, 2010) HAVE I REF ALL ABOVE CORRECTLY Gov.uk (2001) states inclusion is about recognising that every child, irrespective of their background or situation are individuals, and they have the right to access a curriculum that is planned to meet their different requirements. It can be their personal, social, emotional and academic development that may be affected if the work they are given is not differentiated for their individual needs. The Equality ActShow MoreRelatedHow Can An Early Years Setting Support The Needs Of Children With Speech Language And Communication Needs1116 Words   |  5 Pages(EYFS) with a focus on Speech, Language and communication needs (SLCN). This will be researched by having a brief look at the History of SEN including Legislation and the Warnock Report 1978 and the 1981 Education Act as according to the House of Commons Education and Skills Committee Special Educational Needs review â€Å"The Warnock Report in 1978, Followed by the 1981 Education Act, Radically changed the conceptualization of Special Educational Needs† (The Stationery Office (HMSO), 2006b; pg.11). MovingRead MoreThe Development Of Education During The Uk Since 19941678 Words   |  7 Pagesattaining the same goals. The 1960’s was the period of consolidation with the regard to SEN. The Plowden report (1967) recommended that slow learners should be paid greater attention. Similarly, in 1968, the Summerfield Report recommended an increase in the number of educational psychologists and extended testing and assessing of children. Looking legally with in the 1960’s, the Plowden report also stated the end of corporal punishment in Primary schools. Research has shown that physical punishmentRead MoreThe Carter Review Of Initial Teacher Training952 Words   |  4 PagesIn recent provision changes, the ‘Carter review of Initial teacher training (ITT)’ (Carter, 2015) highlights how ITT can be improved in order to enhance support for students. Issues concerning ITT raised by ‘HOC: Third Report’ in 2006 that criticised the ‘lack of training on SEN’ due to the ‘non-compulsory modules in initial teacher training’ (HOC, 2006, p.69). For example , evidence reported by Hartley (2010, p.2) suggested that students were underperforming, as ‘pupils aged 11 in 2008, 84.5% withRead MoreContrasting models of disability Essay913 Words   |  4 Pagesabout children in special education. In 1978 the Warnock Report (DES, 1978) created the terms ‘special educational needs’ and ‘learning difficulties’ (E214, Unit 2, p. 84), two phrases which are still in use today and one of which is illustrated in Appendix A when discussing possible accompanying learning difficulties associated with Asperger Syndrome such as Dyslexia and Dyspraxia. However it could be argued that today, although the Warnock Report wanted to remove the stigma of being labelled (E214Read MoreEssay on Legislation1889 Words   |  8 Pagesdiscuss the beliefs and social and political influences that have shaped contemporary service provision for children and young people This essay will give information about different pieces of legislation including Education Act (1944), The Mary Warnock Report (1978), and ‘Every Child Matters’ (2003). The essay is also going to discuss The Early Years Foundation Stage (EYFS) 2007. In May 1940 Britain had been at war and shortly after Neville Chamberlain who was conservative Prime Minister was forcedRead MoreInclusive Education: Laws and Policies3095 Words   |  13 PagesInclusive education INCLUSIVE EDUCATION: LAWS AND POLICIES FOR INCLUSIVE LEARNING LEVEL 3 ADVANCED BTEC Learning outcome 1: Demonstrate understanding of what is meant by the term Inclusive Education and its relationship to the Warnock commission of 1981. Inclusive Education is a philosophy which challenges the traditional approach to regard disability and disabled people as an after-thought stating that disability is a part of common experience of humanity. It is the approachRead MoreWhat Constitutes High Quality Education for Early Years provision? 1321 Words   |  6 Pagesneed for state provision of early years childcare the importance of the home was highlighted in the statement; The home affords advantages for the early stages of education which cannot be reproduced by any school or public institution. Acland report (1908) It was further recognised however that home was not always the best place for young children to develop. Serious concerns were highlighted surrounding the options to state offered provision. Children could be left unattended or in the handsRead MorePublic Presence Of Prostitution : Public Stigma And Moral Taint Essay1440 Words   |  6 Pagesbut give territorial authorities power to make by-laws concerning the location of brothels (Abel 2014). There have been reported some cases where local authorities have attempted to severely limit the placement on brothels (Barnett Casavant 2011; Warnock Wheen 2012). Nevertheless, by-laws found to place an unreasonable restricting on brothel location are often abolished by higher authorities as territorial authorities are not allowed to prohibit brothels overall (Abel 2015). According to Abel (2015)Read MoreIdentify a Policy and Evaluate Its Impacts on Your Practice, Reflecting on the Effect the Policy Has on Outcomes for Children and Young P eople.5815 Words   |  24 Pagesdistinction should be due to medical or educational concerns. Inevitably it was decided that a child should be selected for special education when recommended by a doctor. This is still apparent to the present day a child has to have a doctor’s report to have a statement of special educational needs (Messer and Meldrum 1995). It is vital to understand the historical development of SEN and disability if we are to fully comprehend the continuous development of inclusion as a contemporary policyRead MoreSpecial Education Needs3359 Words   |  14 Pagesleading some-what normal lives. I will also write about the medical and social model, what they are and how they relate to SEN, I will then write about the SEN Code of Practice and special educational needs coordinators and touch upon the 1987 Warnock report. The definition of SEN according to the 1996 Education act is, a child has special educational needs if he/she has a learning difficulty which calls for special educational requirements to be made for them (Farrell, 2003). A child is said to

Compare and contrast the actions Essay Example For Students

Compare and contrast the actions Essay Compare and contrast the actions, characteristics and language of Romeo and Juliet before they meet and at the end of the play, with particular reference to act 2 scene 2 and act 5 scene 3 In Romeo and Juliet there are two main changes in character, most definitely until they met each other they seemed to be much different than they are later on in the play. Before they met at the banquet Romeo was in Love with Rosaline and he is disheartened and depressed and he used to feel sorry for himself sad hours seem so long because Rosaline didnt feel the same way about him. Juliet was a rather immature child and was under strict supervision of her parents, she was kept from the outside world, and didnt really have much of a life outside her home. She couldnt really have a proper relationship because she was only to have a lover if her parents agreed with them or chose them for her. They definitely wouldnt have agreed with her to marry Romeo because he is a Montague and she was a Capulet. As soon as Romeo and Juliet meet each other they share a sonnet with, and this really shows signs of maturity. In act 2 scene 2, this is only a few hours after the banquet we can see from Juliets proposal of marriage that she is willing to follow throughout the world This shows how Juliet matured in the space of one evening, after falling in love with Romeo she now feels much more independent and now she can even see her life in a different perspective, and maybe even parted from her family. On the other hand Romeo realises he has found the woman he wants to do be with for the rest of his life and uses such language to demonstrate his love for her there lies more peril in thine eye than twenty of their swords he would prefer to die by 20 of the capulets swords rather than living without her love. Romeo uses such language to emphasise that she is worthy and angel like, two of the fairest stars in all the heaven he is comparing her eyes to the bright stars of the night, and he also us es other imagery to express his opinion of her beauty The brightness of her cheek would shame those stars her cheeks are even brighter and more attractive than her eyes. Romeos has a sudden change of heart from Rosaline, he realises Juliet is the one from him and he was more in love with being in love before, but now he is no longer love sick and he has changed and he does love her and believes its not just a crush. In act 5 scene 3 Romeo has a sudden change of character when he meets with Paris, Paris acts very aggressive and full of hatred towards Romeo for killing Tybalt and blames him for the suicide of Juliet, but Romeo doesnt want to kill Paris all he wants his to die next to Juliet, put not another sin upon my head Romeo begs Paris not to fight. In Romeos death speech there is an extended change of character from Romeo, He apologises to Tybalt With that hand that cut thy youth in twain to sunder this that was thine enemy he wants the man who killed tybalt to die and that is himself so he is dedicating part off his death to tybalt. In Juliets much shorter and rushed death speech we learn that all juliet wants now she has seen Romeo dead is to kill herself o happy dagger, this is thy sheath. This is a very brief speech by Juliet but she thinks there is no aim in living if Romeo isnt alive.

Monday, April 20, 2020

Prepare a Report Essay Example

Prepare a Report Essay How to Write a Project Report 1. Why is the report important? If you wish to secure a good mark for your project, it is absolutely essential that you write a good report. It is the report which is marked, not the program or anything else you might have constructed during the project period. No matter how significant your achievements, if you do not write up your work, and write it up well, you will obtain a poor mark. It is essential to understand that the report will be read and marked by a number of examiners (normally 2 4), only one of whom your supervisor will have any familiarity with the work which the report describes. Examiners are not mind-readers, and cannot give credit for work which you have done but not included in the report. 2. What are the examiners looking for? Each project report is marked initially by two examiners, one of whom is the supervisor. Each examiner fills in an online  mark form, giving marks for various aspects of the report and an overall mark. Studying the mark sheet will give you a good idea of what aspects of the report are important. The notes to examiners which accompany the mark sheet use the terms perfect, quite good, abysmal and so on to describe the attributes of a particular numerical mark (e. . 5 is satisfactory). There is a separate document which goes into great detail about what precisely satisfactory means in particular contexts, but Im not sure that these definitions are widely used: most examiners believe that they have an accurate and objective understanding of what is satisfactory. Note that supervisors might specify on the mark sheet that a particular aspect of the project is to be assessed for example, a review of the project area even if that area is not covered in the project report. We will write a custom essay sample on Prepare a Report specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Prepare a Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Prepare a Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Decisions on what is to be assessed are the supervisors responsibility, but you should be aware of the standard headings, think carefully about what you present (or do not present) under each, and discuss and agree it with your supervisor. Remember that your report is an academic dissertation, not a popular article or commercial proposal. For example, rather than describing only a series of events and a final product, try to establish criteria, present arguments, derive principles, pose and answer questions, measure success, analyse alternatives nd so on. Where a project has been undertaken with industrial support, the significance of that support for the project, and the relevance of the project to the supporting industry, should be discussed. 3. The mechanics of writing The problem you have to solve is this: to transfer your own experiences of doing the project, and the knowledge you have gained, from your brain onto paper in a coherent, logical and correct form. There are several ways of achieving this. Different authors have different techniques. My own method, which I think is quite common among technical authors, is to write as quickly as I can, without regard for coherency, structure or order, until I have written down (or rather, typed in) all the points I can think of. If my brain is running faster than my fingers and a thought pops into my head which belongs in another part of the document, I skip to the end of the page and insert a few words there to remind me to expand that point later, then resume where I was. The aim is to transfer as much relevant material from brain to paper as quickly as possible. This method has been called the brain dump. It is practised, I think, by some writers of fiction as well as by technical authors. After three hours of brain dumping I might have four or five pages of disorganized text. I then spend perhaps six hours putting the text into order and tightening up the prose, after which I might have three pages of good-quality prose. This method of writing is an iterative process, with periods of brain dumping alternating with periods of tidying-up. At the rate of three pages of polished text every nine hours, a typical 60-page PR3 project report will take you about four weeks to complete, working full-time. You must allow time to prepare the appendices (e. g. program listings) and illustrations. Good-quality illustrations, in particular, take a long time to prepare. You should therefore allow at least  six weeks  to write the report. If you kept a note-book during the project period, you will find the writing-up process much easier. 4. How to write well Many students appear not to realize how difficult it is to write well. Any type of writing (except perhaps advertising copy) is difficult, but technical writing is particularly hard. There are many books which address the subject of good technical writing. By far the best among those which I have seen is  Scientists Must Write  by Robert Barrass (1982). Though published over twenty years ago, this superb little book is still in print. There are several copies in the J. B. Morrell library, but since it costs only ? 11. 19 (from the  Internet Bookshop), you would be well advised to buy a copy and to read it from cover to cover. 4. 1. Precision You must strive first to be absolutely precise. When you write, it is not sufficient that  you  know what you mean; neither is it sufficient that your writing admits of the meaning which you intend: it must admit of no other meaning. What you write must not be capable of misinterpretation. Take exceptional care to choose the right word for the occasion. Do not, for example, write optimum if you mean good. Approximate means close, so very approximate means very close which is not what many people seem to think it means. 4. 2. Vigour Precision in writing is mainly a matter of taking sufficient care. Good writing is not only precise, however, it is  vigorous, and that is much harder to achieve. It helps if you have read widely, especially novels. Here are some hints which might help you to write forcefully and vigorously. Prefer short sentences to long sentences. Prefer short words to long words, provided that the short word has the meaning you need. Terseness is a great virtue in technical writing. (But dont go too far; remember Horaces observation: Brevis esse laboro, obscurus fio. ) Avoid circumlocutions. In almost all sectors of the computing marketplace can be replaced in most contexts by almost everywhere. The question of whether to use the passive voice in technical writing is a thorny one. Most older writers still write a program was written rather than I wrote a program . Many of your examiners might share this preference for, or prejudice in favour of, the passive voice, but this style is passing out of favour in all technical writing, and I advise you not to use it. Whatever you do, do not use the royal we (we wrote a program when you mean I wrote a program). There is general agreement that Latin phrases are best avoided in technical writing (but the occasional Latin quotation might lend a spurious air of erudition! ) Nevertheless, many careful writers have their own favourite Latin phrases which find occasional use. The best rule is that a Latin phrase is acceptable if it abbreviates a circumlocutionary English phrase. Mutatis mutandis, for example, one of my own favourites, is permissible in place of making the appropriate changes, since any English gloss seems to be ugly and unwieldy. I. e. (note the roman font and punctuation) is often useful in place of in other words or that is, and is widely understood. Quite often, however, X, i. e. ,  Y can be replaced by Y, because the writer realized while writing  X  that  Y  said the same, only better. E. g. is overused and best used sparingly; prefer for instance or for example. 4. 3. Spelling and grammar You must take exceptional care to spell correctly. Poor spelling is a distraction to the proficient reader. In most cases there is very little excuse nowadays for spelling errors; there are many excellent spell-checker programs which make a good job of finding the errors for you, and excellent (paper) dictionaries which will tell you wh at the correct spelling is. Be especially careful with words whose common misspelling is a correct spelling of a different word, in particular the following pairs: lead/led; loose/lose; affect/effect. It is dangerous to allow the spell-checker to correct a misspelling by itself; many such hilarious corrections have been reported, for example recently in  New Scientist. Believe the spell-checker. Very many people, for example, on finding that the spell-checker questions idiosyncracy [sic], say to themselves it must be missing from the dictionary file, and leave the word alone. It is for a good reason. If you have a medical condition which makes it difficult for you to spell correctly, make sure that your supervisor knows about it, so that it can be taken into account by the examiners. If poor spelling is a distraction which impedes understanding, poor grammar is more so. There are so many potential grammatical solecisms that it would be inappropriate to attempt to list them here. Read Fowlers  Modern English Usage  for guidance. This book has been revised several times since its first publication in 1926. The most recent (1998) edition is probably the best to use, not because its recommendations are more permissive or up-to-date, but because it draws attention to traps which it would not have occurred to Fowler in 1926 that anyone could fall into. The original 1926 edition is famous for its vigorous, fiery language, which has been successively watered down in later revisions. Take care with apostrophes. Historically, the apostrophe denoted the omission of one or more letters: dont = do not, Johns book = John his book. For this reason, careful writers of British English restrict the possessive use of the apostrophe to animate possessors. You may write Johns book but not the programs function, since (so the argument goes) one cannot write the program his function: you must write the function of the program instead. This rule is being steadily eroded under American influence, and will probably soon be obsolete. I mention the animate possessor rule in order to illustrate and to explain a very common blunder. Never  use an apostrophe with a possessive pronoun. Its means it is (the letter thats omitted is an i),  not  it his, which is plain silly. One never sees spurious apostrophes in his, hers, ours, yours, theirs; so why does one so often see its in place of its, which is the correct possessive pronoun? The brain of the experienced reader, on seeing its, performs a lexical-level macro-expansion, replacing its by it is. This then fails to make syntactic sense in the context, necessitating a backtracking and re-parsing operation, and conscious expenditure of effort. It really does slow down, and consequently annoy, the reader. This crass and ignorant blunder probably does more to distract and to impede the reader of students reports than any other grammatical solecism. Summary: its = it is (needed rarely, if at all, in formal writing). Its is the pronoun (This is my program. Its purpose is to .) You almost certainly mean its. Even if you yourself do not place a strong emphasis on good spelling and good grammar, most of your examiners do, some fanatically. Most examiners will be irritated by poor spelling and poor grammar. It is always worth doing whatever you can, short of bribery, to put your examiner in a good mood. Write well and spell well, for this reason if for no other! 4. 4. Typography When I prepared my own final-year project report, I wrote it with pen and ink and handed the manuscript to the departmental secretary who typed it for me on an IBM typewriter. Modern practice is different, and now you yourself are responsible for producing a computer-typeset report. This means that you must be familiar both with the formal requirements set out in the Students Handbook (restricting the number of pages, type size, width of margins, and so on) and with the rudiments of typography. You will not be penalized severely, if at all, if you violate typographical conventions, but good typography creates a subliminal impression akin to that of good proportion in a painting, and is desirable for that reason. Since it is a matter of simply learning and following the rules, you should try to do so. You should learn at least enough (for example) to know the difference between the hyphen, minus, en-dash and em-dash, and when to use each of them. The best and most famous typographical reference book is  Rules for compositors and readers at the University Press, Oxford  by Horace Hart, known colloquially and universally as Harts Rules. It is a small book which you should probably read from cover to cover, but you may skip the section on Russian orthography if your report contains no Russian words. This book, like Fowler, has been revised continually since its first publication (in 1904, though it was in use within the O. U. P. ince 1893). The latest edition is dated 1983. It is still in print, almost a century after its first publication, and at ? 8. 79 (from the  Internet Bookshop), well worth buying. 4. 5. Illustrations Your report should generally contain illustrations (figures or diagrams), but they must be relevant. Ask yourself if the illustration helps the reader to un derstand the text. If the text is readily comprehensible without the illustration, delete the illustration. If it is not, it is usually better to make the text clearer than to add a diagram. All illustrations should be prepared by an appropriate program, such as  pic,  xfig  or  grap. They should not be hand-drawn. The only common exception to this rule is circuit diagrams: given the current state of the art in schematic-entry packages, a hand-drawn circuit diagram is usually preferable to a computer-drawn one. If possible, include figures close to the text which refers to them, rather than all together in an appendix. Circuit diagrams are, again, a possible exception to this rule. It is normal to list tables and figures at the beginning of the report, after the table of contents. 5. Structure Saepe stilum vertas. Horace 5. 1. Top-level structure At the top level, a typical report is organized in the following way. 1. Abstract. (This is a couple of paragraphs no more which summarizes the content of the report. It must be comprehensible to someone who has not read the rest of the report. ) 2. Introduction. (The scope of the project, setting the scene for the remainder of the report. ) 3. Previous work. (One or more review chapters, describing the research you did at the beginning of the project period. ) 4. Several chapters describing what you have done, focusing on the novel aspects of your own work. 5. Further work. (A chapter describing possible ways in which your work could be continued or developed. Be imaginative but realistic. ) 6. Conclusions. (This is similar to the abstract. The difference is that you should assume here that the reader of the conclusions has read the rest of the report. ) 7. References and appendices. 5. 2. References References must be relevant. A typical PR3 project report might contain about one page of pertinent references, if the initial research period was well spent. Do not include references which you have not read, no matter how relevant you think they might be. If you refer to standard material which is covered by a large number of text-books, choose one or two really good ones and cite those, rather than a long list of mediocre texts. There are many styles for citing references. Although strict standards (e. g. British Standards) for citing references exist, my advice is not to bother with them; instead, find a reputable journal in the library and copy its style. Alternatively, copy the example below. Its important to be consistent, complete and unambiguous; beyond that, it doesnt matter much what you do. Example citation style: Citations in text:Mander, in Notes on a system specification method [Mander 1983], gives the following as described by Briggs [1983a] Thimblebys guidelines [Thimbleby 1983] suggest that Different methodologies have been examined [Tully 1983]. Several recent publications in this field [Wand 1980d, ACM 1971] have been very influential. List of references at end of report: References| ACM 1971. | Association for Computing Machinery,  Second symposium on problems in the optimisation of data communication systems, ACM (1971). | Briggs 1983a. | J. S. Briggs, The design of AIR and its use in Ada separate compilation, in  SERC workshop on Ada software tools interfaces, ed. P. J. Wallis, University of Bath (1983). Downes 1982. | V. A. Downes, S. J. Goldsack,  Programming embedded systems with Ada, Prentice-Hall (1982). | Mander 1983. | K. C. Mander,  Notes on a system specification method, York Computer Science report no. 61, University of York (1983). | Thimbleby 1983. | H. W. Thimbleby, Guidelines for `manipulative text editing,  Behaviour and Information Technology,  2, 127 161 (1983). | | If you adopt this style, when you cite a reference, you need not repeat the authors name or authors names (Jones and Sanderson [Jones Sanderson 1999] have shown ). Write instead: Jones and Sanderson [1999] have shown , and list the reference as Jones Sanderson 1999. Alternatively, a system of numbered references, such as the default format produced by the Unix  refer  tool in conjunction with  troff, is acceptable. I myself much prefer numbered citation styles, which I find much less obtrusive and easier on the eye; e. g. Jones and Sanderson? have shown or Jones and Sanderson [1] have shown . These forms, which are allowed by the regulations in the Handbook, seem to be the two dominant citation styles in academic journals. You may wish to refer to electronic sources, particularly material found on the World-Wide Web. It is not enough to put found on WWW in place of a citation. The web page Bibliographic Formats for Citing Electronic Information gives advice on citing on-line sources. If possible, avoid citing unpublished literature. It is however acceptable to cite university reports, such as this Departments YCS series, and PhD theses (although getting hold of the latter can be almost impossible). References are always cited in the text. Other works youve made use of but not cited should be listed in a section called Bibliography. Note that et al. requires a period after the abbreviation al. (for alia). It means and others, and may be used only to refer to people, typically in lists of references. It is the animate form of etc. , which also requires a period. 5. 3. Lower-level structure Structure is a recursive concept. A well-structured report has its top-level sections well ordered, and it is easy to get this right; but each section must in itself be well ordered, and that is more difficult. Most paper documents, and many on-line documents, are read linearly from beginning to end. This is certainly true of an examiner reading a project report. Consequently, the writer of a well-structured document avoids forward references wherever possible. Try to avoid writing as we shall see in chapter 10, , especially if the material in chapter 10 is essential to an understanding of the text at the point where the reference occurs. Occasionally such references are unavoidable, but more often than not they are a sign that the text needs to be re-ordered. In the old days, re-ordering text entailed cutting and pasting with real scissors and real paste. Nowadays, the word-processor has made these operations so easy that there is no excuse for slovenly structure. Take your time, and keep rearranging words or phrases within sentences, sentences within paragraphs, paragraphs within sections and sections within the whole report until you have got it right. Aim for a logical progression from beginning to end, with each sentence building on the previous ones. If the chapters are numbered 1, 2, 3, , then the sections within (say) chapter 1 will be numbered 1. 1, 1. 2, . It is permissible to sub-divide a section: the sub-sections within section 1. 1 will be numbered 1. . 1, 1. 1. 2, . Do not however nest sub-sections to more than four levels: sub-sub-section 1. 2. 3. 4 is acceptable, but 1. 2. 3. 4. 5 is not. It is quite possible, with care, to write even a large and complex book without using more than three levels. Footnotes are a nuisance to the reader. They interrupt the linear flow of text and necessitate a mental stack-pushing and stack-popping which demand conscious effort. There are rare occasions when footnotes are acceptable, but they are so rare that it is best to avoid them altogether. To remove a footnote, first try putting it in-line, surrounded by parentheses. It is likely that the poor structure which was disguised by the footnote apparatus will then become apparent, and can be improved by cutting and pasting. 6. The role of artefacts in projects Deep down, all students seem to believe that their project is to write a program (or, to build a circuit). They believe that they will be judged by how much their program does. They are amazed when their supervisor is unconcerned about the inclusion or non-inclusion of a listing in the report. They fear that they will be penalized if their program is small-scale or if they do not make grandiose claims for its power and functionality. This leads to reports heavy with code and assertions about code, but light on reasoning. Students omit the reasoning because they are short of time and think the code more important, and thereby they lose credit they could have had. It leads also to the omission of testing. Hence there are assertions about the extent of implementation, but no evidence (in the form of records of testing) to back them up. In summary, credit for the implementation is not the whole story; you should not feel under pressure to make claims that you cannot support. Your reports should clearly separate specification, design, implementation and testing. The program does  X should more honestly be I wanted the program to do  X; I designed it to do nearly-X; I implemented it to do most-of-X; my testing shows that it did some-of-X  (and here is the evidence of that). Taking this advice into account can much improve your mark. 7. You and your supervisor Writing is a solitary pursuit. Whereas your supervisor will guide you through the early stages of your project work, you must write the report on your own. It is a University assessment, and the rules on plagiarism and collusion (do consult the Students Handbook! ), and the conventions which restrict the amount of help a supervisor can give, apply. Nevertheless, most supervisors will be happy to read and to comment on drafts of sections of your project report before you hand it in, if you give them enough time to do so. Its also a good idea to ask your supervisor to suggest some high-quality past projects in a similar field to yours, and to look them up in the departmental library. This will give you an idea of what is required. 8. Summary 1. Good writing is difficult, but it is worth taking the trouble to write well. 2. Leonard was trying to form his style on Ruskin: he understood him to be the greatest master of English prose. He read forward steadily, occasionally making a few notes. Let us consider a little each of these characters in succession, and first (for of the shafts enough has been said already), what is very peculiar to this church its luminousness. Was there anything to be learnt from this fine sentence? Could he adapt it to the needs of daily life? Could he introduce it, with modifications, when he next wrote a letter to his brother, the lay reader? For example: Let us consider a little each of these characters in succession, and first (for of the absence of ventilation enough has been said already), what is very peculiar to this flat its obscurity. Something told him that the modifications would not do; and that something, had he known it, was the spirit of English Prose. My flat is dark as well as stuffy. Those were the words for him.

Sunday, March 15, 2020

The author J.K.Rowling

The author J.K.Rowling had captured the hearts of millions of readers worldwide and she comes back in the 4th book and does it again. The series is basically about an orphan boy whose parents were killed by an evil wizard called by other wizards only as 'He who must not be named'.This may sound like a fairy tale but trust me it's not. The twists and turns in this book will not let you put this book down. It will provide for hours of enjoyable reading. You can call it a mix of Enid blyton's humour and Agatha Christie's suspense. Harry finds out that he is a wizard in the first book and he is taken to a Wizard school by Hagrid, a giant, this book relates his experiences in his 4th yr at Hogwarts (the wizard school). This book is a thriller, a comedy, and a school life story all packed into one. Warner Bros who have bought rights for the first 4 books are going to come out with a movie based on the 1st book in November next year to coincide with the release of the 5th book which ! is in the same month. I just cant wait for the next book by this scintillating author.A small piece of friendly advice .Read the other 3 books before reading this one because it may spoil the surprises of the other books for you. Which book store did you buy the book from?: Fabmart Would you recommend this book to a friend?: Yes

Thursday, February 27, 2020

Applied Mathematics in Music Technology Essay Example | Topics and Well Written Essays - 750 words

Applied Mathematics in Music Technology - Essay Example In the production and amplification of sound, mathematical formulas with the aid of electrical machinery come in handy. Such electronics are majorly made up of electrical circuits that form a closed pathway followed by electrons whose principal motion is propelled by the gradient difference of current in the positive and negative terminals. There are two types of currents namely direct current and alternating current. Most electrical circuits use direct current, DC, sources because it has a low voltage that is the change of the electrical potential of two oppositions and it can only flow in one direction (Calle 2001). A simple electrical circuit contains several resistors, capacitors and probably a bell or a lamp all connected to a power source say a battery using wires. The pictorial way of presenting a circuit is known as a circuit diagram (Sherlock 2010). Resistance, measured in ohm (â„ ¦) is the property of a conducting material to oppose the flow of electrons within the mater ial when a voltage charge is applied. It is represented by quantity symbol R (Malley 1982, p17). Ohm’s law which is the foundation of electronics and electricity was named after Mr. George Ohm who was a mathematician and a physicist defines the relationship between voltage, power, current and resistance. It states that for a given temperature, a current passing through a given conductor that obeys Ohm's law is directly proportional to the varying ranges of applied voltages with a constant proportionality of the specific conductor’s resistance.  

Tuesday, February 11, 2020

Hip Hop in the African American culture Essay Example | Topics and Well Written Essays - 750 words

Hip Hop in the African American culture - Essay Example These four elements include rap music, turntablism, breaking, and graffiti art. African America people find unity in this artifact, which was born in a violent and poverty historical context despite the contrasting method that they use to execute this artifact. This artifact was used to provide a reactionary outlet form the hardships of the African American in the urban. Its main objective was to reflect on the expressions and proclaim an alternative, which would change the mood of poverty and violent environment. The four elements have enabled the hip hop artifact to remain coherent and stable to the African America culture, thus allowing this artifact to nurture globally in a thriving multitude of different style. The Hip hop artifact was established in South Bronx, New York, City in 1973 by a Jamaican-born Kool DJ Herc. By use of an innovative turntable technique Herc stretched a song drum break by playing the breaking portion of two identical records consecutively at a Halloween dance party, which was organized by her younger sister (Chang, 2005). Out of this break portion of identical songs was the realization of a new style; ‘break dancing’, which was a style for the Hip hop culture. Extended drum breaks by other DJs in at New York dance parties facilitated the hip hop culture an America. Other seminal turntables DJ dominated the Hip hop scene in New York by mid-1970s. These DJs are DJ Flash, DJ Grandmaster, DJ Afrika Bambaataa, and Herc. The first Hip hop commercially successful hit way ‘Rapper’s Delight’ by the rappers of Sugarhill Gang in 1979. It is very wrong to insinuate that Hip hop is not a unique and complete African and African American tradition. A majority, if not all, of the African American truly love this art. In the beginning, only the Blacks enjoyed this artifact, but as time goes by, almost all races have embraced this culture by enjoying, buying, and writing of Hip hop music. The rap music is an African oral poetry, which has been traced through jazz, rock, the gospel, and the blues, which originated form West Africa. A majority of the slaves who worked in America were kidnapped from West Africa. These slaves were those who took the knowledge of jazz, rock, Gospel, and blues, which later gave birth to hip hop. Therefore, it is wrong to say that hip hop is not of an African cultural origin. This is similar as trying to say that jazz, blues, rock, and gospel have nothing to do with black culture. The hip hop godfathers were African American, and thus it is right when one says that Black African masses created this artifact. The pains and struggles that the African Americans went through was one reason this culture was created. The hip hop music was soulful expression from the hearts of Zulu nations; mostly Black (Anderson, 2003). When they spoke their thoughts the other human races who have ever been subjected to pain would be conscious of their misery through hip hop music. On the o ther hand, a majority of the breaking moves that commonly used in hip hop come from African-Brazilian art of Capoeria. It is also important to note that graffiti finds its roots from the oldest burners in the world, the Egyptian Hieroglyphics. The turn table techniques were stated by the African American DJs. For example, Kool Herc had Jamaican roots. Therefore, Hip hop is solely of an African origin and thus Hip hop is Black. Hip hop has turned out to become a massive reality, which has

Friday, January 31, 2020

Homework Assignment Essay Example for Free

Homework Assignment Essay 1.Prepare an analysis of the automobile manufacturing industry using Porter’s five forces framework. For each component force provide support for your conclusion. In addition, at the completion of your analysis provide a conclusion, along with support, of whether you expect the automobile industry to report high or low profitability in the near future. 2. Tremble Company manufactures outdoors wear for women. During 2009, the company reported the following items that affected cash. Required: Indicate whether each of these items is a cash flow from operating activities (O), investing activities (I), or financing activities (F). A. Paid cash for supplies B. Purchased equipment by paying cash C. Collected cash on account from customers D. Paid dividends to stockholders E. Paid suppliers for fabric F. Borrowed money from a bank on a long-term note G. Paid interest to bank on the note H. Paid wages to employees I. Sold shares of common stock to new stockholders 3. The following selected financial data pertain to four companies: a hotel, a travel agency, a meat packing company and a pharmaceutical company. Required: Match each with the financial information and explain why you made your choice as you did. Balance Sheet Data (component percentages)Company 1Company 2Company 3Company 4 Cash7.222.06.011.2 Accounts Receivable28.040.03.423.0 Inventory21.40.50.927.4 Property, Plant Equipment 32.019.075.125.0 Income Statement Data (component percentages) Gross Profit15.2Not ApplicableNot Applicable44.0 Profit before Taxes1.83.32.57.0 Ratios Current ratio (over the last five years)1.61.30.51.8 Inventory turnover ratio27.8Not ApplicableNot Applicable 3.4 Debt-to-equity ratio1.82.35.81.4 4. Use the current asset section of the balance sheets of the El Paso Company as of January 31, 2012 and 2011 presented below to answer the questions that follow. 2012 2011 Cash and cash equivalents$ 75,000$ 58,800 Trade accounts receivable, net 157,500 193,200 Inventory 208,200 253,400 Other current assets 18,400 15,500 Total current assets$ 459,100$ 520,900 Total assets$2,650,000$3,430,000 Required: (a) In the spaces provided below, complete a Percentage Change analysis of the current asset section of El Paso Companys balance sheet for 2012, using the following format to provide your answers for the amount of dollar change and the amount of percentage change, rounding â€Å"% Change† to one decimal place, e.g., 8.3%. Accounts$ Change% Change (b) Provide a short evaluation of this analysis.

Thursday, January 23, 2020

Keith Bassos Wisdom Sits in Places Essay -- American History Western

Keith Basso's Wisdom Sits in Places There is a deep relationship between the environment and Western Apache people. The bonds between the two are so strong that it is embedded in their culture and history. Keith Basso, author of Wisdom Sits in Places expanded on this theory and did so by divulging himself into Western Apaches life. He spent fifteen years with the Apache people studying their relationship with the environment, specifically concentrating on ‘Place-names.’ When Basso first began to work with the Apache people, one of his Apache friends told him to ‘learn the names,’ because they held a special meaning with the community. (Cruikshank 1990: 54) Place-names are special names given to a specific locality where an event took place that was significant in history and crucial in shaping morals and beliefs. Through the use of place-names, the environment became a teaching tool for Apache people. Red Lake, Minnesota is an Ojibwa place-name. The area dates back 9000 yeas ago when the Stone Age peoples first inhabited the region that is now known as northwestern Ontario. These aboriginals were indigenous people familiar with the properties of the surrounding plants and wild animals. They lived along the waterways and treated their environment with respect and celebrated its bounties through their spirituality. (Web Site #1) According to Ojibwa legend, thousands of years ago, two hunters came across a very large moose standing beside a beautiful clear blue lake. The Hunters thought the moose was an evil spirit named ‘Matchee Manitou’ and they tried to kill it. One of the hunters shot the animal with an arrow just wounding it. The grand and majestic animal escaped by diving into the water and disappearing forever. A large pool of blood colored the water red, masking the once beautiful blue lake. A creature so huge was never to be seen again. The hunters named the lake ‘Misque Sakigon’ meaning ‘Color of Blood Lake.’ Years later it became known as ‘Red Lake.’ (Web Site #1) When I heard this story, 12 years ago, it came from the mouth of my father’s good friend, an Ojibwa man, named Henry Meekis. I still remember everyone sitting in front of him while he told the story. His passion for the story permeated the room and we were all captivated by it. The importance of place-name study lies in the light it sheds on the cultural... ...lace-names can be seen in the following quote given by an Apache named Benson Lewis. I think of the mountain called ‘White Rocks Lie Above In a Compact Cluster’ as it were my own grandmother. I recall stories of how it once was at that mountain. The stories told to me were like arrows. Elsewhere, hearing that mountains name, I see it. Its name is like a picture. Stories go to work on you like arrows. Stories make you live right. Stories make you replace yourself. (38) When I read Wisdom Sits in Places I could feel the importance of place-names through the words of the Apache peoples stories. Events that took place many years ago in a specific areas reiterate the morals and beliefs the Apache people hold near to them. To say that they are anything but relevant to Apache history and culture would be a mistake. Works Cited Basso, Keith 1999 Wisdom Sits in Places. Albuquerque: University of New Mexico Press. Cruikshank, Julie 1990 Getting the Words Right: Perspectives on Naming and Places in Athapaskan Oral History. Artic Anthropology 27: 52-65. 1. www.red-lake.com/museum

Wednesday, January 15, 2020

Sahil KOLB s assignment

If I place score grades on different words been Provided, then the best scores are in Scale AWE and CE, on the other hand, the least scores are in OR and AC. Furthermore; after subtracting AC by CE and AWE by OR, results are -3 and 11. Therefore I fall in a category of Assimilates who instead of feeling, they think and then apply their strategies. Basically am a visual and creative learner because of the fact that can learn things easily in a visualized Surroundings instead of more theoretical, I prefer o observe things and then learn and apply in future. M always been keen interested in involving myself in creative task because I can explore my talent in more Better way. According to Kola's Learning Model, have random abilities such as Abstract Conceptualization And Reflective Observation that means I learn things which are based on particular concepts and observation in a reasonable and logical way. I think that the best way to learn is through concentrating on lectures because We can observe various concepts and moreover by involving our self in ample number of task, discussions, ProjectsAs per KOLA'S CHART, I being as assimilates who is more closer to Converge and Diverged because as we Know that in diverged, they also has qualities of reflective observation in which, they prefer to watch and learn through discussing and brainstorming but as compared to assimilates they always feel instead of thinking. Apart from diverged, assimilates is also close to converge, who also share abstract conceptualization; that means, they also prefer to think instead of feeling. Converges also believe in learning skills through Motivation and concepts. But converges always prefer in doing instead of giving priorities in observing things.They also believe in pursuing learning skills through lectures, projects, papers etc. Furthermore; According to the results, I being as assimilates is totally against Accommodated because of the reason that they prefer to learn through feeling and doing. Moreover they also have abilities of concrete experience and active experimentation which are not included in Assimilates, as they believe in thinking and observing things instead of feeling and doing. Apart from that, Somehow Assimilates is inter-related to converge and diverged , as they share some abilities During their learning.Assimilation's are less interested in doing things without observing them because of the fact that they want results accurate and logical, so that they can easily understand things in a shorter time. All in all; according to my past academic records, I learnt things more logically, visually and through auditory Skills. I feel that I am more present-oriented who can explore easily through guidance and motivation. Whenever observe things from more visualized environment, it helps me to understand in more practical way.

Monday, January 6, 2020

German Racial Views And Policies Towards The Jewish People...

On the 20th of January 1942, leading members of the Nazi party had met in Berlin to discuss how they could make the mass murder of all the Jewish people in Europe an organised and methodical procedure; this discussion would be known as ‘’the Final Solution of the Jewish Question’’. This essay will prove that the progressive development of German racial views and policies towards the Jewish people, did in fact led to the Final Solution, and ultimately an attempt at the mass genocide of the Jewish population all due to the absurd anti-Semitic mind sets of the German people. In the 1920s, the Nazi party had come into power under Adolf Hitler s rule, who had begun to put in place the Nazi parties racial ideology. The Nazis had seen the German people as racially superior, and that anyone who wasn’t German, was inferior and would interrupt the creation of the perfect human race, or what would be known as the ‘’Aryan’’ race. The inferior people noticed by the Nazis were the; gypsies, Jews, poles and those of colour, however, the Jews were the main virus with regards to the Germans. The German people had the idea that the crisis in Germany and the hyperinflation of the Weimar republic occurred all due to the Jewish people, and what would really create an anti-Semitic atmosphere, would be Germany’s loss of world war one. The Germans would want the Jews to leave so badly, that they would sign the Haavara Agreement, which would allow the German Jews the chance to emigrate toShow MoreRelatedGerman Attitudes Toward the Jews and the Final Solution Essay1033 Words   |  5 PagesGerman Attitudes Toward the Jews and the Final Solution There are those that claim that Hitler’s conscious personal hatred of the Jews, his unique and central role in the rise of Nazi Germany were fundamental in the development of the anti-Jewish policies that emerged leading to the final solution. 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Sunday, December 29, 2019

Argumentative Essay Education Reform - 1906 Words

Asehun 1 Senay Asehun Ms. McAlister Eng. 112 – 21 28 April, 2016 Argumentative Essay on Education Reform The year is 2012. In the movie Back to the Future II, two years from now, in 2016, Marty McFly travels from the past to save his family’s future. The future is almost upon us, and yet it would seem that our education system has changed little since Back to the Future hit theaters in 1985. â€Å"We still have same teachers, in the same parts, in the same schools, with the same level of knowledge, with the same equipment’s, and much the same standard of parental support† (David). Ironically, we have been steadily implementing policy after policy, increasing standards and accountability, promoting oversight and rule†¦ the list goes on, and yet our progress seems minimal, our educators complain of underfunded classrooms, and our legislators complain of underperforming schools. The question of â€Å"how to improve our education system† is not getting satisfactorily answered because our system is not broken, merely underdeveloped. The truth is that America has made paces in improving its education technique or system; the problem that remains is for us to entrust our educators with the greater pliability and autonomy that they need to excel. The United States has an outstanding example of successful education reform in California, whose combined approach and unyielding responsibility to excellenceShow MoreRelatedThe Importance Of Writing An Argumentative Essay969 Words   |  4 Pagesthey become long lasting skills. Writing an argumentative is not an easy task there is a lot of elements that have to come together to create a successful essay but as many other things, it requires constant practice and effort. At the start of this course I wasn’t a very good writer myself, and I can see the huge improvement this course made by looking at my first argumentative essay. I was able to identify and apply the requisites of a good argument essay. A well thought structure, reliable evidenceRead MoreArgumentive Outline Essay 650 Words   |  3 PagesArgumentative Essay Outline Thesis: President Obama is trying to convince the United States that was a whole we set each other apart as a nation. He tries to point out different issues in American and explains new ideas to make the United States better as a strong government. A. Supporting Argument: President Obama addresses the tragedy in Tucson by saying because of this tragedy it made the country focus less on the public debate and reminded us how important we as a whole are and not soRead MoreArgumentative Essay: Educational Reform703 Words   |  3 PagesArgumentative Essay: Educational Reform Since the early 1980s, the issue of Americas faltering public school system has become a serious concern. The crisis in K-12 education is one of the biggest challenges facing the nation. There is a great deal of evidence to show this problem. The pathetically low results of American students through international test scores is one obvious fault. Another is the failure of many students to demonstrate their knowledge of basic skills and literacy. ItRead MoreEssay On No Child Left Behind Act1247 Words   |  5 PagesIn 2004, coinciding with the conclusion of President George W. Bush’s first term in office, United States Secretary of Education, Rod Paige, released an essay depicting the successes of his administration. Paige’s department spearheaded the initiative sparked by the No Child Left Behind Act, a set of policies enacted to reform education and provide students with an improved degree of learning more suited to the evolving job market. Paige brings light to the findings of his administration, presentingRead MoreIs American Education Getting Worse Or Better?. One Of1638 Words   |  7 PagesIs American Education getting worse or better? One of Michael Crichton’s well-known books is Jurassic Park. As an intelligent man who is good at writing stories, apparently, he did not impress his English teacher at Harvard with one of his essay. Michael’s confidence was ruined when he found out he had a C- on his English paper. Michael’s creativity did not meet the principle of writing. America’s education is ranked number 14th compared to other countries. There are three different ways to preventRead MoreStandardized Testing Is A Crucial Part Of Today s Federal Education Structure Essay1378 Words   |  6 Pagesa crucial part of today’s federal education structure; one that is both highly supported and criticized at all levels. The main point of this roundtable, and the chosen excerpts from the authors on the subject, is to discern and debate both the necessity of and the role that multiple choice testing plays in teaching history. This subject is relevant to us as history teachers because it opens up the floor for discussions about the need to either continue, reform, or completely scrap multiple choiceRead MoreThe Devastating Impacts Of Illegal Immigration1368 Words   |  6 Pages Sheldon Jackson Argumentative Essay â€Å"The Devastating Impacts of Illegal Immigration† If ever there was a polarizing problem growing in the U.S., illegal immigration is definitely exploding to the top. This issue is at the center of the political arena and debate. It has the heart and minds of the nation stirring. President Obama wrote, We have to deal with the 11 million individuals who are here illegally. We all agree that these men and women should have to earn their way to citizenshipRead MoreTeaching Strategies For Student Involvement Essay1327 Words   |  6 Pagesfor each student to write an argument essay on illegal immigration. The broader context for this lesson was for students to think critically, work collaboratively, and use effective communication skills. I also wanted students to consider real-world problems and gain respect for differing viewpoints often based on cultural background and experience. Argument writing is the most used mode of writing in postsecondary education and many careers require argumentative skills, including marketing, law enforcementRead MoreArgument On Poverty1572 Words   |  7 PagesCami Tonti Mrs. Miller Language Arts Argumentative Essay December 6th, 2017 Poverty Is Ruling The Earth Half of the world, or about 3 billion people, live off of $2.50 or less a day. Additionally, according to UNICEF, approximately 22,000 children under the age of five, die every day from poverty. Something has to be done about this worldwide crisis of poverty, but no matter how hard we try calamity lingers. Poverty has been subjugating the Earth for years, obliterating families, jobs, andRead MoreCriticism of Fordes Claim on Benjamin Franklins Autobiography1629 Words   |  7 PagesArgumentative Essay on Fordes claim on Benjamin Franklins autobiography Benjamin Franklins autobiography by Steven Fordes was compiled both as a template for the ancient Americans on how they should live and interact with one another in their society and a memoire to his son. The work was received and embraced by many around the world, Asians and Europeans inclusive. The work was also criticized for many reasons. In order to reach his aim or goal, Forde split the work into three distinct topics;

Saturday, December 21, 2019

Essay on Reading Comprehension - 1328 Words

Reading Comprehension In any interaction with a text, the text is pretty much useless unless the reader can comprehend the meaning of that text. Since narrative, expository, and poetic texts all have different reasons for being written, and different forms of presenting the text, different strategies are needed to comprehend these texts. There are also many reading strategies that can be used for all of these types of text. In order to describe strategies to help develop activities that facilitate comprehension of narrative, expository, and poetic texts one must first have an understanding of what comprehension means, they then need a better understanding of how the human brain works. â€Å"Comprehension is a creative, multifaceted†¦show more content†¦If there are no changes in long-term memory, nothing has been understood or learned.† (Sweller, 2005) The competent comprehender is a skilled reader. â€Å"Skilled readers are those who actively and automatically const ruct meaning as they read; they are self-motivated and self-directed; they monitor their own comprehension by questioning, reviewing, revising, and rereading to enhance their overall comprehension.† (Douglas Fisher, 2011) One other skill that is crucial to being a skilled reader and comprehending text is the fluency with which a student reads. Teaching fluency skills is a very important aspect of helping a student comprehend what they are reading. If a student is using all of the short term memory decoding words and sentence stucture, there is very little left to work on the process for gaining meaning from the text. The most common strategies used to improve fluency are; adding vocabulary to the students long-term memory, activating background knowledge (schema), modeling, and having the student read. So what are other strategies that can be used to help the non-skilled student comprehend what they are reading? â€Å"The most important comprehension strategies for struggling readers are activating background knowledge, determing importance, summarizing, questioning, visualizing and monitoring.† (Tompkins, 2010, p. 267) Background knowledge helps the student with both fluency and the understandingShow MoreRelatedReading Comprehension1136 Words   |  5 Pagesinterviewed and undergone tests to successfully determine the result of the study. Research Instruments The researcher formulated reading comprehension test that was utilized as a survey instrument. The test contains 45 questions based on the three short selections they have read. Procedure After acquiring the necessary permits to conduct the test regarding reading comprehension, it was administered by the researcher himself to the students and collected the answer sheets after completion. Then all dataRead MoreReading Comprehension Strategy Of Inferring Essay1493 Words   |  6 PagesMaking Inferences WHY: Purpose of Lesson: The purpose of this lesson is to introduce students to the reading comprehension strategy of inferring. The students will learn how to use textual evidence combined with their own background knowledge to make inferences about various aspects of a text including characters, setting, theme, and plot. Common Core State Standards: †¢ CCSS.ELA-LITERACY.RL.5.1: Quote accurately from a text when explaining what the text says explicitly and when drawing inferencesRead MoreTeaching Reading Comprehension And Comprehension1448 Words   |  6 PagesIn the late 1960s and 1970s, reading comprehension was taught by asking students various questions after reading a passage and noting their skills as to what they understood, how they followed directions and noted details. In 1978, Dolores Durkin observed a variety of teachers teaching reading instruction in both reading and social studies classrooms. She found that these teachers spent less than 1% of their time actually teaching children how to understand texts. Unfortunately over the yearsRead MoreTeaching Reading Comprehension6449 Words   |  26 PagesIntroduction What is reading? Reading is about understanding written texts. It is a complex activity that involves both perception and thought. Reading consists of two related processes: word recognition and comprehension. Word recognition refers to the process of perceiving how written symbols correspond to one’s spoken language. Comprehension is the process of making sense of words, sentences and connected text. Readers typically make use of background knowledge, vocabulary, grammatical knowledgeRead MoreReading Comprehension Strategy, Cause And Effect1904 Words   |  8 PagesThe purpose of this lesson is to introduce students to the reading comprehension strategy, cause and effect. The students will be able to develop a strong understanding of cause and effect by creating personal connections to their daily lives. The students will be able to connect the strategy, cause and effect, to the other elements of a story and strategies that we have worked with this year including character, plot, theme, setting, inferring, and compare and contrast. Common Core State Standards:Read MoreReading Note On Reading Comprehension1378 Words   |  6 PagesReading Fluency: Refers to the ability to decode words accurately, effortlessly, using correct volume, phrasing and appropriate intonation at a reasonably rapid rate. There are three main components of fluency including speed, accuracy and prosody, which is using expression when reading. Since the reader is reading automatically he is able to focus on the comprehension of text. Fluency refers to the ability to maintain accurate reading of connected text at a conversational rate with appropriateRead MoreReading Fluency and Its Effect on Reading Comprehension1295 Words   |  6 PagesReading Fluency and its Effect on Reading Comprehension Topic Selection As an elementary teacher, I have often thought reading fluency plays a large role in a child’s reading development. Few reading programs give fluency the recognition it deserves. Reading fluency has been a prominent and reliable benchmark for me, even when students have comprehension difficulties. Once fluency is assessed, the results were used to place students in their reading ability group. Often times,Read MoreA Study On Reading Comprehension2670 Words   |  11 PagesReading with Briana: A Case Study in Reading Comprehension There is a great concern over the increase of struggling readers. Studies show â€Å"that when students get off to a poor start in reading, they rarely catch up† (Kelly and Campbell, 2012, para. 1). These students are confronted with the negative ramifications of failing grades, remedial services, grade retention, and low self-esteem. The question of how to best help struggling readers is on the minds of teachers and parents alike. ReadingRead MoreThe Importance Of Reading Comprehension1010 Words   |  5 PagesReading failure is a societal problem with greater consequences downstream. Students who are struggling readers will need targeted instruction in comprehension strategies. Once students have learned to read, the focus of instruction needs to shift to comprehension. Comprehension skills must be expertly taught so that students explicitly taught so that students can understand information presented in the written form. Strategies help students stay engaged and think about what they are reading (LynchRead MoreReading Comprehension Is An Essential Skill For Reasoning And For Functioning Well922 Words   |  4 PagesReading comprehension is an essential skill for reasoning and for functioning well in everyday life. The SAT is a test that measures these skills and it is a crucial part of high school students to be admitted into post-secondary schools. A test of this magnitude combined with the increasing com petition in college admissions should have test scores increasing as each year passes, but instead, a reverse trend is occurring. The average reading scores have decreased in the last four decades, having

Friday, December 13, 2019

Good and Bad Dams Free Essays

Latin America and Caribbean Region Sustainable Development Working Paper 16 Good Dams and Bad Dams: Environmental Criteria for Site Selection of Hydroelectric Projects November 2003 George Ledec Juan David Quintero The World Bank Latin America and Caribbean Region Environmentally and Socially Sustainable Development Department (LCSES) Latin America and the Caribbean Region Sustainable Development Working Paper No. 16 Good Dams and Bad Dams: Environmental Criteria for Site Selection of Hydroelectric Projects November 2003 George Ledec Juan David Quintero The World Bank Latin America and the Caribbean Region Environmentally and Socially Sustainable Development Sector Management Unit George Ledec has worked with the World Bank since 1982, and is presently Lead Ecologist for the Environmentally and Socially Sustainable Development Unit (LCSES) of the World Bank’s Latin America and Caribbean Regional Office. He specializes in the environmental assessment of development projects, with particular focus on biodiversity and related conservation oncerns. We will write a custom essay sample on Good and Bad Dams or any similar topic only for you Order Now He has worked extensively with the environmental aspects of dams, roads, oil and gas, forest management, and protected areas, and is one of the main authors of the World Bank’s Natural Habitats Policy. Dr. Ledec earned a Ph. D. in Wildland Resource Science from the University of California-Berkeley, a Masters in Public Affairs from Princeton University, and a Bachelors in Biology and Environmental Studies from Dartmouth College. Juan David Quintero joined the World Bank in 1993 and is presently Lead Environmental Specialist for LCSES and Coordinator of the Bank’s Latin America and Caribbean Quality Assurance Team, which monitors compliance with environmental and social safeguard policies. He specializes in environmental assessment of infrastructure projects, mainly roads, hydropower, oil and gas, urban transport, and water supply and sanitation. He has received the Regional Award from the International Association for Impact Assessment (IAIA) for promoting improvements in environmental impact assessments throughout Latin America. He is a civil engineer with postgraduate degrees in Environmental and Sanitary Engineering. The findings, interpretations, and conclusions in this document are those of the authors, and should not be attributed in any manner to the World Bank, its affiliated organizations, members of its Board of Executive Directors, or the countries they represent. This working paper series is produced by the Environmentally and Socially Sustainable Development Sector Management Unit of the Latin America and Caribbean Regional Office. Additional copies may be obtained from the authors or from LCSES Program Assistant Peter Brandriss (pbrandriss@worldbank. rg, or tel. 1-202-473-9379). Cover photos (clockwise from upper left): Loksop Dam, South Africa Guavio Dam, Colombia Yacyreta Dam, Argentina/Paraguay All photos by George Ledec ii Contents Acknowledgments †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. iv Foreword †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. v Executive Summary†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ ii Introduction †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚ ¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 1 Adverse Environmental Impacts of Hydropower Development †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 3 Key Indicators of Likely Environmental Impacts †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 9 Overview of Environmentally Good and Bad Hydroelectric Dam Sites †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 13 Conclusions †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 5 Bibliography†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 17 Tables 1. Hydroelectric Projects: Adverse Impacts and Mitigation Options 4 2. Land Area Flooded and People Displaced in Large Hydropower Projects iii 12 Acknowledgments Doug Mason (consultant) compiled data on more than twenty completed Latin American hydroelectric projects; this information was very useful in our analysis of environmental and social impacts, mitigation measures, and site selection criteria. Several current and former World Bank Group staff members provided useful comments and much encouragement, including Alessandro Palmieri, John Briscoe, Teresa Serra, Tony Whitten, Robert Goodland, Tor Ziegler, Warren Van Wicklin, William Partridge, Maria Clara Mejia, Kristine Ivarsdotter, Mateen Thobani, Salman Salman, and A. J. Glauber. This paper also reflects the helpful comments provided by Dominique Egre and Gaitan Guertin (Hydro-Quebec), Jose Goldemberg (World Commission on Dams), and Paul Dulin. Peter Brandriss helped edit and prepare the report for publication. iv Foreword Few types of development projects arouse as much controversy as hydroelectric dams. Their often serious environmental damage has been amply documented within the past decade. Nonetheless, many countries, in Latin America and worldwide, rely upon hydroelectric dams for a major portion of their electric power. Electricity remains a key ingredient for improving the lives of poor people almost everywhere. In developing countries, rapid urbanization and continued population growth will ensure increased demand for electric power for decades to come, even with the most successful of demand management and energy efficiency measures. Energy planners in many developing countries are thus likely to continue seeing hydroelectric dams as a promising source of renewable electric power. This report provides important advice for substantially reducing the environmental damage from future hydroelectric dams (whether or not they receive World Bank Group financing) through good project site selection. Although the report’s conclusions are drawn primarily from a review of Latin American dams, its innovative methodology for dam site selection–based on robust environmental and social criteria and straightforward, quantitative indicators–should prove useful worldwide. The report also helpfully summarizes the environmental mitigation options for the improved operation of existing hydroelectric dams. As such, this report should be of considerable interest to people interested in hydroelectric dams, whether at the World Bank, other multilateral and bilateral development institutions, government agencies, private energy companies, consulting firms, environmental and other NGOs, and academia. This report is part of the LCR Sustainable Development Working Paper Series published by the Latin America and the Caribbean Region’s Environmentally and Socially Sustainable Development Sector Management Unit (LCSES). This series seeks to disseminate the results of our analytical and operational work, present preliminary findings, and describe â€Å"best practices† with respect to major sustainable development issues facing the region. The findings, interpretations, and conclusions expressed in these papers are entirely those of the authors and should not be attributed to the World Bank, members of its Board of Executive Directors, or the countries they represent. John Redwood Director Environmentally and Socially Sustainable Development Latin America and Caribbean Region The World Bank v Executive Summary Large dams vary considerably in their adverse environmental and related social impacts. From an environmental standpoint, there are relatively good dams and bad dams. While some large dams are relatively benign, others have caused major environmental damage. The severity of environmental impacts from a hydroelectric project is largely determined by the dam site. While dams at good sites can be very defensible from an environmental standpoint, those proposed at bad sites will inherently be highly problematic, even if all feasible mitigation measures are properly implemented. This paper provides a simple, yet robust, methodology for comparing proposed hydroelectric project sites in terms of their expected negative environmental impacts, and relating these to power generation benefits. The paper also summarizes the environmental mitigation options for large dams. If properly implemented, these mitigation measures can effectively prevent, minimize, or compensate for many (though not all) of a hydroelectric project’s negative impacts. Nonetheless, the most effective environmental mitigation measure is good site selection, to ensure that the proposed dam will cause relatively little damage in the first place. The paper presents quantitative indicators (using data that are relatively easy to obtain) for rating and ranking proposed new hydroelectric projects in terms of their likely adverse environmental impacts. Projects with a small reservoir surface area (relative to power generation) tend to be most desirable from both an environmental and social standpoint, in part because they minimize natural habitat losses as well as resettlement needs. In general, the most environmentally benign hydroelectric dam sites are on upper tributaries, while the most problematic ones are on the large main stems of rivers. Power expansion planning should ensure that environmental criteria, of the type outlined in this paper, are given appropriate weight in hydroelectric project site selection. Many of the more problematic dam sites are best left undeveloped, because the environmental or related social impacts are likely to be unacceptably high. In those cases, other power generation technologies are likely to be more environmentally desirable. Conversely, hydroelectric dams at good sites (with relatively low adverse impacts) and with effective implementation of proper mitigation measures are likely to be more attractive from an environmental standpoint than the most likely power generation alternatives. vii Introduction 1. Large hydroelectric dams are among the most controversial of all types of development projects. They have been the focus of much criticism of the World Bank and other international financing agencies. The â€Å"large dams† debate is often highly polarized. Critics of large hydroelectric projects point to a wide range of negative environmental and related social impacts, from the destruction of unique biodiversity to the displacement of vulnerable human populations. Defenders of large dams note that they are often the economically least-cost source of electric power available, especially to large urban centers; they are a renewable electricity source; and most other power generation technologies also imply significant adverse environmental impacts. 2. Worldwide, many countries rely upon hydropower for a substantial portion of their electricity. In developing countries, rapid urbanization and continued population growth will ensure increased demand for electric power for decades to come, even with the most successful of demand management and energy efficiency measures. Electricity remains a key ingredient for improving the lives of millions of poor people throughout the developing world. Energy planners in many countries are likely to continue seeing hydroelectric dams as a promising, renewable source of electricity. Major recent international initiatives–including the World Summit on Sustainable Development (Johannesburg, 2002), World Water Forum (Kyoto, 2003), World Commission on Dams (1997-2002), and the ongoing Dams and Development Project of the United Nations Environment Program–have reaffirmed the commitment of many governments and international agencies (including the World Bank) to hydropower development, but in a manner which fully reflects modern environmental concerns. 3. In this context, it is important to remember that all large hydroelectric dams are not alike. Large hydroelectric projects vary tremendously in the extent of their adverse environmental and related social impacts. (In this paper, we define large hydroelectric dams as those with 10 megawatts or more of installed generating capacity, to distinguish them from small or micro-dams which generate power on a smaller scale. ) For example, the 500–megawatt Pehuenche Hydroelectric Project in Chile flooded only about 400 hectares of land (with minimal damage to forest or wildlife resources) and has had no water quality problems. By contrast, the Brokopondo Dam in Suriname inundated about 160,000 hectares of biologically valuable tropical rainforest and is known for serious water quality and aquatic weed problems, while providing relatively little electric generating capacity (only 30 megawatts). 4. We conducted a review of more than twenty completed hydroelectric dam projects in Latin America, along with several well-known projects from other regions. Our study found that some large dams are relatively benign, while others have caused substantial environmental and related social damage. This paper provides a methodology for easily comparing proposed hydroelectric project sites in terms of their expected adverse environmental impacts, relative to their power generation benefits. The technical criteria and quantitative indicators in this paper should be viewed as complementary to 1 2 LCR Sustainable Development Working Paper No. 16 the broader and often more process-oriented advice of other recent reports on dams, including the 2000 Dams and Development report of the World Commission on Dams. This paper’s recommendations are fully compatible with the World Bank’s Water Resources Sector Strategy, although this paper provides more technical detail regarding specific environmental impacts, mitigation options, and site selection criteria. Adverse Environmental Impacts of Hydropower Development 5. The range of adverse environmental and related social impacts that can result from hydroelectric dams is remarkably diverse. While some impacts occur only during construction, the most important impacts usually are due to the long-term existence and operation of the dam and reservoir. Other significant impacts can result from complementary civil works such as access roads, power transmission lines, and quarries and borrow pits. Table 1 summarizes the adverse environmental and social impacts associated with dams and reservoirs, along with the typical kinds of mitigation measures often proposed (and, less often, effectively implemented). 6. Our analysis indicates that with properly implemented mitigation measures, many of the negative environmental and related social impacts of hydroelectric projects can be reduced to very acceptable levels. As outlined in Table 1, mitigation measures can effectively prevent, minimize, or compensate for most adverse impacts, but only if they are properly implemented. In our review of Latin American hydroprojects, we found wide variation in the extent to which environmental mitigation measures were planned, budgeted, and actually implemented. 7. Moreover, for some types of negative impacts, at some project sites, the available mitigation measures—even when properly implemented—are inherently unsatisfactory. Examples of adverse environmental impacts which occur at some hydroelectric projects and cannot be fully mitigated include (i) irreversible biodiversity loss, if critical natural habitats not occurring elsewhere are submerged (or left dry) by the dam; (ii) fish passage facilities frequently cannot restore the pre-dam ecological balance of a river, in terms of species composition or fish migrations; and (iii) some cultural property (including sacred sites) cannot be adequately salvaged prior to reservoir inundation. 8. Thus, because mitigation measures are often not fully implemented, and are sometimes inherently inadequate, the single most important environmental mitigation measure for a new hydroelectric project is good site selection, to ensure that the proposed dam is will be largely benign in the first place. In the following summary of typical adverse environmental impacts and corresponding mitigation options, it is important to keep in mind that all these types of impacts can be either avoided or minimized through good project site selection. 3 4 Note: All of these impacts can be avoided or minimized by good dam site selection, the single most important environmental measure. Environmental Impacts Mitigation Options Impacts of the Dam and Reservoir Flooding of Natural Habitats Some reservoirs permanently flood extensive natural habitats, with local and even global extinctions of animal and plant species. Very large hydroelectric reservoirs in the tropics are especially likely to cause species extinctions (although such losses are only infrequently documented due to the lack of scientific data). Particularly hard-hit are riverine forests and other riparian ecosystems, which naturally occur only along rivers and streams. From a biodiversity conservation standpoint, the terrestrial natural habitats lost to flooding are usually much more valuable than the aquatic habitats created by the reservoir. One occasional exception to this rule is that shallow reservoirs in dry zones can provide a permanent oasis, sometimes important for migratory waterfowl and other terrestrial and aquatic fauna. To offset the loss of natural habitats to reservoir flooding or other project components (such as borrow pits), one or more compensatory protected areas can be established and managed under the project. If an existing area is protected â€Å"on paper† only, a useful project option is to strengthen its onthe-ground protection and management. The area protected under the project should ideally be of comparable or greater size and ecological quality to the natural area lost to the project. Under the World Bank’s Natural Habitats Policy, hydroelectric and other projects should not be sited where they would cause the significant conversion or degradation of critical natural habitats that do not occur elsewhere (and, hence, cannot be adequately compensated). Loss of Terrestrial Wildlife The loss of terrestrial wildlife to drowning during reservoir filling is an inherent consequence of the flooding of terrestrial natural habitats, although often treated as a separate impact. Although they may be useful for public relations purposes, wildlife rescue efforts rarely succeed in restoring wild populations. Instead of drowning, the captured and relocated animals typically starve, are killed by competitors or predators, or fail to reproduce successfully, due to the limited carrying capacity of their new habitats. Wildlife rescue is most likely to be justified on conservation grounds if (a) the species rescued are globally threatened with extinction and (b) the relocation habitat is ecologically suitable and effectively protected. However, the money spent on rescue would usually do much more for wildlife conservation if it were invested in compensatory protected areas. The most effective way to minimize wildlife mortality in hydroelectric projects is to choose dam sites which minimize the wildlife habitat flooded. LCR Sustainable Development Working Paper No 16 Table 1. Hydroelectric Projects: Adverse Environmental Impacts and Mitigation Options Environmental Impacts Mitigation Options Involuntary Displacement Involuntary displacement of people is often the main adverse social impact of hydroelectric projects. It can also have important environmental implications, such as with the conversion of natural habitats to accommodate resettled rural populations. For physical displacement, the main mitigation measure is the resettlement of displaced populations, including new housing, replacement lands, and other material assistance, as needed. Success usually requires consultation and participatory decisionmaking by both the resettled and host populations (mandatory for World Bank–supported resettlement). Effective resettlement of vulnerable ethnic minorities is particularly challenging because some of these people are highly vulnerable to adverse social changes. Accordingly, the World Bank’s Involuntary Resettlement and Indigenous Peoples policies afford special consideration to these populations, specifying that, among other requirements, all viable alternative project designs should be explored before considering physical displacement for these groups. For people who are not physically displaced but suffer an economic loss of livelihoods (based on fisheries, agricultural or grazing lands, river-edge clay for brick and tile production, or other resources), mitigation measures should involve the provision of replacement resources, new job training, or other income restoration assistance, as needed. Deterioration of Water Quality The damming of rivers can cause serious water quality deterioration, due to the reduced oxygenation and dilution of pollutants by relatively stagnant reservoirs (compared to fast-flowing rivers), flooding of biomass (especially forests) and resulting underwater decay, and/or reservoir stratification (where deeper lake waters lack oxygen). Water pollution control measures (such as sewage treatment plants or enforcement of industrial regulations) may be needed to improve reservoir water quality. Where poor water quality would result from the decay of flooded biomass, selective forest clearing within the impoundment area should be completed before reservoir filling. Downriver Hydrological Changes These adverse impacts can be minimized through careful management of water releases. Objectives to consider in optimizing water releases from the turbines and spillways include adequate downriver water supply for riparian ecosystems, reservoir and downriver fish survival, reservoir and downriver water quality, aquatic weed and disease vector control, irrigation and other human uses of water, downriver flood protection, recreation (such as whitewater boating), and, of course, power generation. From an ecological standpoint, the ideal water release pattern would usually closely mimic the natural flooding regime (although this may not be feasible for densely settled floodplains where flood protection is a high priority). Dams that generate baseload electricity are typically more capable of replicating near-natural downriver flows than those that produce peaking power (where daily water releases may fluctuate sharply, often to the detriment of aquatic organisms that are adapted to less frequent flow changes). Environmental management plans for hydroelectric projects should specify environmental water releases, including for dams owned or operated by the private sector. Good Dams and Bad Dams 5 Major downriver hydrological changes can destroy riparian ecosystems dependent on periodic natural flooding, exacerbate water pollution during lowflow periods, and increase saltwater intrusion near river mouths. Reduced sediment and nutrient loads downriver of dams can increase river-edge and coastal erosion and damage the biological and economic productivity of rivers and estuaries. Induced desiccation of rivers below dams (when the water is diverted to another portion of the river, or to a different river) kills fish and other fauna and flora dependent on the river; it can also damage agriculture and human water supplies. Mitigation Options Water-Related Diseases Some infectious diseases can spread around hydroelectric reservoirs, particularly in warm climates and densely populated areas. Some diseases (such as malaria and schistosomiasis) are borne by water-dependent disease vectors (mosquitoes and aquatic snails); others (such as dysentery, cholera, and hepatitis A) are spread by contaminated water, which frequently becomes worse in stagnant reservoirs than it was in fast-flowing rivers. Corresponding public health measures should include preventive measures (such as awareness campaigns and window screens), monitoring of vectors and disease outbreaks, vector control, and clinical treatment of disease cases, as needed. Control of floating aquatic weeds (see below) near populated areas can reduce mosquito-borne disease risks. Fish and Other Aquatic Life Hydroelectric projects often have major effects on fish and other aquatic life. Reservoirs positively affect certain fish species (and fisheries) by ncreasing the area of available aquatic habitat. However, the net impacts are often negative because (a) the dam blocks upriver fish migrations, while downriver passage through turbines or over spillways is often unsuccessful; (b) many riveradapted fish and other aquatic species cannot survive in artificial lakes; (c) changes in downriver flow patterns adversely affect many species, and (d) water quality deterioration in or below reservoirs (usually low oxygen levels; somet imes gas super-saturation) kills fish and damages aquatic habitats. Freshwater molluscs, crustaceans, and other benthic organisms are even more sensitive to these changes than most fish species, due to their limited mobility. Management of water releases may be needed for the survival of certain fish species, in and below the reservoir. Fish passage facilities (fish ladders, elevators, or trap-and-truck operations) are intended to help migratory fish move upriver past a dam; they are usually of limited effectiveness for various reasons (including the difficulty of ensuring safe downriver passage for many adults and fry). Fish hatcheries can be useful for maintaining populations of native species which can survive but not successfully reproduce within the reservoir. They are also often used for stocking the reservoir with economically desired species, although introducing non-native fish is often devastating to native species and not ecologically desirable. Fishing regulation is often essential to maintain viable populations of commercially valuable species, especially in the waters immediately below a dam where migratory fish species concentrate in high numbers and are unnaturally easy to catch. Floating Aquatic Vegetation Floating aquatic vegetation can rapidly proliferate in eutrophic reservoirs, causing problems such as (a) degraded habitat for most species of fish and other aquatic life, (b) improved breeding grounds for mosquitoes and other nuisance species and disease vectors, (c) impeded navigation and swimming, (d) clogging of electro-mechanical equipment at dams, and (e) increased water loss from some reservoirs. Pollution control and pre-impoundment selective forest clearing will make reservoirs less conducive to aquatic weed growth. Physical removal or containment of floating aquatic weeds is effective but imposes a high and recurrent expense for large reservoirs. Where compatible with other objectives (power generation, fish survival, etc. ), occasional drawdown of reservoir water levels may be used to kill aquatic weeds. Chemical poisoning of weeds or related insect pests requires much environmental caution and is usually best avoided. LCR Sustainable Development Working Paper No 16 Environmental Impacts (table continues on following page) 6 Table 1. Hydroelectric Projects: Adverse Environmental Impacts and Mitigation Options (continued) Environmental Impacts Mitigation Options Loss of Cultural Property Cultural property, including archaeological, historical, paleontological, and religious sites and objects, can be inundated by reservoirs or destroyed by associated quarries, borrow pits, roads, or other works. Structures and objects of cultural interest should undergo salvage wherever feasible through scientific inventory, careful physical relocation, and documentation and storage in museums or other appropriate facilities. However, it is often not possible to replace the loss of, or damage to, unique or sacred sites which may have great religious or ceremonial significance to indigenous or other local people. Reservoir Sedimentation Over time, live storage and power generation are reduced by reservoir sedimentation, such that much of some projects’ hydroelectric energy might not be renewable over the long term. If effectively implemented, watershed management can minimize sedimentation and extend a reservoir’s useful physical life, through the control of road construction, mining, agriculture, and other land use in the upper catchment area. Protected areas are sometimes established in upper catchments to reduce sediment flows into reservoirs, as with the Fortuna Dam in Panama and the proposed Rio Amoya (Colombia) and Nam Theun II (Laos) projects. Aside from watershed management, other sediment management techniques for hydroelectric reservoirs may at times be physically and economically feasible; they include, among others, upstream check structures, protecting dam outlets, reservoir flushing, mechanical removal, and increasing the dam’s height. Greenhouse Gases Greenhouse gas releases from reservoirs can be reduced by a thorough salvage of commercial timber and fuelwood, although frequently this does not happen because of (a) high extraction and transportation costs, (b) marketing constraints, or (c) political and economic pressures not to delay reservoir filling. The surest way to minimize greenhouse gas releases from reservoirs is to choose dam sites that minimize the flooding of land in general, and forests in particular. table continues on following page) Good Dams and Bad Dams 7 Greenhouse gases (carbon dioxide and methane) are released into the atmosphere from reservoirs that flood forests and other biomass, either slowly (as flooded organic matter decomposes) or rapidly (if the forest is cut and burned before reservoir filling). Greenhouse gases are widely considered to be the main cause of human-induced global climate change. Many hydroelectric reservoirs flood relatively little forest or other biomass. Moreover, most hydroprojects generate sufficient electricity to more than offset the greenhouse gases which would otherwise have been produced by burning fossil fuels (natural gas, fuel oil, or coal) in power plants. However, some projects which flood extensive forest areas, such as the Balbina Dam in Amazonian Brazil, appear to emit greenhouse gases in greater amounts than would be produced by burning natural gas for many years of comparable electricity generation. Mitigation Options Impacts of Complementary Civil Works Access Roads New access roads to hydroelectric dams can induce major land use changes— particularly deforestation—with resulting loss of biodiversity, accelerated erosion, and other environmental problems. In some projects (such as Arun II in Nepal), the environmental impacts of access roads can greatly exceed those of the reservoir. The siting of any new access roads should be in the environmentally and socially least damaging corridors. Forests and other environmentally sensitive areas along the chosen road corridor should receive legal and on-the-ground protection. Road engineering should ensure proper drainage, to protect waterways and minimize erosion. Environmental rules for contractors (including penalties for noncompliance) should cover construction camp siting, gravel extraction, waste disposal, avoiding water pollution, worker behavior (such as no hunting), and other construction practices. See Ledec and Posas (2003) for details. Power Transmission Lines Power transmission line rights-of-way often reduce and fragment forests; indirectly, they occasionally facilitate further deforestation by improving physical access. Large birds are sometimes killed in collisions with power lines, or by electrocution. Power lines can also be aesthetically objectionable. Power lines should be sited to minimize these concerns and built using good environmental practices (as with roads). In areas with concentrations of vulnerable bird species, the top (grounding) wire should be made more visible with plastic devices. Electrocution (mainly of large birds of prey) should be avoided through bird-friendly tower design and proper spacing of conducting wires. Quarries and Borrow Pits Quarries and borrow pits are used to provide material for construction of the dam and complementary works. They can considerably increase the area of natural habitats or agricultural lands that are lost to a hydroelectric project. To the greatest extent feasible, quarries and borrow pits should be sited within the future inundation zone. Where this is not feasible, the pits should be rehabilitated after use, ideally for conservation purposes such as wetland habitats. Impacts of Induced Development Associated Development Projects Hydroelectric dams often make possible new development projects with major environmental impacts, including irrigation, urban expansion, and industrial facilities (due to new water supplies). New development projects should be planned to minimize adverse environmental and social impacts. Environmental impact assessment studies should be carried out in the early stages of project planning; the resulting environmental mitigation plans should be fully implemented. Additional Dams The construction of the first dam on a river can make the subsequent construction of additional dams more economical, because flow regulation by the upriver dam can enhance power generation at the downriver dam(s). The environmental impact assessment study for the first dam on any river should include a cumulative environmental assessment of the likely impacts of proposed additional dams on the same river system. Implementation of mitigation measures for cumulative (rather than dam-specific) impacts should be completed or well underway prior to construction of the second dam on the river. LCR Sustainable Development Working Paper No 16 Environmental Impacts 8 Table 1. Hydroelectric Projects: Adverse Environmental Impacts and Mitigation Options (continued) Key Indicators of Likely Environmental Impacts 9. Before a dam site is chosen (with a project-specific environmental impact assessment), sector-level environmental analysis can rank potential sites according to their degree of environmental desirability. A sectoral environmental assessment (SEA) should be carried out prior to making major power sector planning decisions, especially in the comparison of hydroelectric and other power generation (and demand management) alternatives. However, even without a detailed SEA, it is possible to carry out a simple environmental and ranking of different hydropower sites using basic, often readily available technical data. There exist various quantitative, easily calculated indicators that can be used to estimate the extent of adverse environmental impacts for any proposed hydroelectric project. 10. This paper presents 13 quantitative, easily calculated indicators that we consider especially useful for hydroproject site selection from an environmental standpoint. These indicators have high predictive value for likely adverse environmental (and related social) impacts. The first nine indicators (A–I) use information that is normally easy to obtain from basic dam planning data, even without a separate environmental study. The other four indicators (J–M) are also very important in the environmental comparison of alternative dam sites, but involve data that may require further environmental (or resettlement) study to obtain. Indicator A (hectares of land inundated) is perhaps the single most useful one in predicting the degree of environmental damage, because this indicator is positively correlated with many of the others. From a social standpoint, the number of people requiring resettlement (Indicator J) is an especially important. A. Reservoir Surface Area 11. The area flooded by the reservoir is a strong proxy variable for many environmental and social impacts (Goodland, 1997). A large reservoir area implies the loss of much natural habitat and wildlife and/or the displacement of many people. Very large reservoirs are typically in the lowlands (often with tropical disease and aquatic weed problems) and usually impound larger rivers (with more fish and other aquatic species at risk). A very useful measure of environmental costs relative to economic benefits is the ratio of inundated hectares per megawatt (ha/MW) of electricity; it varies by four orders of magnitude for large power projects (see Table 2). The global average for all large hydroelectric dams constructed to date (not just those in Table 2) is about 60 ha/MW (J. Goldemberg, pers. comm. ); it would be environmentally highly desirable for this average to be much reduced in future hydroprojects. B. Water Retention Time in Reservoir 12. Mean water retention time during normal operation (the shorter, the better) is very useful in estimating the extent to which reservoirs will have long-term water quality problems. This figure (number of days) is calculated as a function of reservoir volume (cubic meters) and mean river flow (cubic liters per second). 9 10 LCR Sustainable Development Working Paper No. 16 C. Biomass Flooded 13. Biomass flooded is calculated in tons per hectare based on the percent cover of different vegetation types in the reservoir area. For good reservoir water quality, dams should minimize flooding of forests (which have high biomass content). Flooding native forests also threatens biodiversity and releases greenhouse gases. D. Length of River Impounded 14. To conserve aquatic and riparian biodiversity (including riverine forests), dam sites should minimize the length (kilometers) of river (main stem plus tributaries) impounded by the reservoir (measured during high flow periods). E. Length of River Left Dry 15. This measures the kilometers of river left dry (with less than 50 percent of dry season mean flow) below the dam, due to water diversion. The length of dried-up river bed (before the next important downstream tributary) should be minimized, due to the loss of fish and other aquatic life, damage to riparian ecosystems, and disruption of human water supplies, agriculture, and/or fishing. F. Number of Downriver Tributaries 16. The more (major, undammed) tributaries downriver of the dam site, the better, in terms of maintaining accessible habitat for migratory fish, the natural flooding regime for riverine ecosystems, and nutrient or sediment inputs needed for the high biological productivity of estuaries. G. Likelihood of Reservoir Stratification 7. Stratification in a reservoir occurs when the lake’s upper zone (epilimnion) is thermally divided from the deeper zone (hypolimnion); the latter becomes stagnant and lacking in dissolved oxygen (anaerobic), thereby unsuitable for most aquatic life. A rapid estimate of stratification tendencies in a reservoir can be obtained with the Densimetric Froude Number (F). F can be calculated as: F = 320(L/D)(Q/V), where L = length of the reservoir (meters), D = mean reservoir depth (meters) (for which dam height can be a proxy), Q = mean water inflow (cubic meters per second), and V = eservoir volume (cubic meters). If F is less than 1, some stratification is expected, the severity of which increases with a smaller F. When F is greater than 1, stratification is not likely. H. Useful Reservoir Life 18. Useful reservoir life is the expected number of years before a reservoir’s dead storage is completely filled, so that further sedimentation reduces the live storage and curtails power generation. Dead storage comprises all reservoir water beneath the level of the intakes for the dam’s turbines; all of the water at or above this intake level is part of the live storage. Useful reservoir life is a function of dead storage and river-borne sediment loads. Useful reservoir life is a good indicator of the relative sustainability of electric power generation; it varies from less than ten years before dead storage is filled (such as the Paute Dam in Ecuador) to potentially thousands of years. In general, reservoirs with the longest useful life are relatively deep and situated on rivers with low sediment loads. Maintaining low sediment loads over time typically requires good watershed management. Good Dams and Bad Dams 11 I. Access Roads through Forests 19. Where the risks of induced deforestation are high, project siting should minimize the kilometers of required new or upgraded access roads passing through or near natural forests. J. Persons Requiring Resettlement 20. The number of people physically displaced by hydroelectric projects ranges from zero (e. g. Pehuenche, Chile) to over 50,000 in Latin America (e. g. Yacyreta, Argentina-Paraguay) and well over 1 million in Asia (Three Gorges, China). Dam siting should generally seek to minimize the number of individuals or households requiring resettlement from lands affected by the reservoir and complementary civil works. A useful measure for relating resettlement costs to hydropower benefits is the ratio of people displaced per megawatt (Table 2). Because of their usually greater vulnerability to social disruption, it is especially important to minimize the number of indigenous people with traditional land-based models of production who would require resettlement. K. Critical Natural Habitats Affected 21. It is important to know the number of sites and hectares of critical natural habitats that would be lost to inundation, borrow pits, or other project components. Critical natural habitats include existing and officially proposed protected areas, as well as unprotected areas of known high importance for biodiversity conservation. To comply with the World Bank’s Natural Habitats Policy, hydroelectric projects should not cause any significant loss or degradation of critical natural habitats. On the other hand, some hydroelectric projects imply very important conservation opportunities by providing a strong justification (sediment reduction) and financial resources needed for protecting natural habitats in upper catchment areas. L. Fish Species Diversity and Endemism 22. Fish species diversity is the number of species known from the project area, including the dam and reservoir site, as well as the downstream zone of project influence. Fish species endemism is the number of native species known only from the project area, or the river system where the project is located, and nowhere else on Earth. Dams are environmentally less objectionable if they affect rivers with a naturally low diversity and endemism of native fish species. In general, large, lowland rivers in warm (tropical or subtropical) climates have a high diversity of native fish and other aquatic organisms, while small rivers in cold (tropical highland or temperate) climates have relatively low diversity. Large, lowland rivers are also more likely to have significant seasonal fish migrations, which are effectively blocked by most dams. However, highland rivers and streams often have relatively high endemism in their fish fauna, especially if they are isolated from other rivers by waterfalls or other natural barriers. River segments with threatened fish species found nowhere else should be classified as critical natural habitats and, ideally, would receive permanent protection from dams or other potentially damaging civil works. However, dams and reservoirs in upper tributary rivers and streams need not threaten the survival of any endemic fish (or mollusks, or other aquatic life) if they affect only an insignificant portion of the river area used by these species (see Indicators D and E); they should also be sited so as not to block important fish migrations. M. Cultural Property Affected 23. An indication of the cultural significance of the area to be inundated (or otherwise affected by the project) is the number (by type) of cultural (archaeological, historical, paleontological, or religious) objects or sites. It is important to note whether each type of cultural property at the project site is salvageable (totally, partially, or not at all). 12 LCR Sustainable Development Working Paper No. 16 Table 2. Land Area Flooded and People Displaced in Large Hydropower Projects Project (country) Arun II (Nepal) Pehuenche (Chile) Pangue (Chile) Guavio (Colombia) Tehri (India) Ghazi Barotha (Pakistan) Nam Theun-Hinboun (Laos) Ertan (China) Fortuna (Panama) Chixoy (Guatemala) Grand Coulee (United States) Three Gorges (China) Tarbela (Pakistan) Salvajina (Colombia) Zimapan (Mexico) Itaipu (Brazil/Paraguay) Victoria (Sri Lanka) Kararao/Belo Monte (Brazil) Aguamilpa (Mexico) Betania (Colombia) Urra I (Colombia) Mangla (Pakistan) Bakun (Malaysia) Ataturk (Turkey) El Cajon (Honduras) Ilha Solteira (Brazil) Guri Complex (Venezuela) Salto Grande (Argentina/Uruguay) Nam Theun II (Laos) Arenal (Costa Rica) Yacyreta (Argentina/Paraguay) Tucurui (Brazil) Narmada Sagar (India) Porto Primavera (Brazil) Churchill Falls (Canada) Khao Laem (Thailand) Kedung Ombo (Indonesia) Kainji (Nigeria) Pak Mun (Thailand) Cabora Bassa (Mozambique) Aswan High (Egypt) Nam Ngum (Laos) Sobradinho (Brazil) Kariba (Zambia/Zimbabwe) Balbina (Brazil) Akosombo (Ghana) Bayano (Panama) Kompienga (Burkina Faso) Brokopondo (Suriname) Installed capacity (MW) 402 500 450 1,000 2,400 1,450 210 3,300 300 300 6,494 18,200 3,478 270 280 12,600 210 8,381 960 510 340 1,000 2,400 2,400 300 3,200 10,300 1,890 1,086 157 3,100 3,980 1,000 1,815 5,225 300 29 760 34 2,075 2,100 150 1,050 1,260 250 833 30 14 30 Reservoir rea (hectares) 43 400 500 1,530 4,200 2,640 630 10,100 1,050 1,400 33,306 110,000 24,280 2,030 2,300 135,000 2,270 116,000 13,000 7,370 7,400 25,300 70,000 81,700 11,200 125,700 426,000 78,300 45,000 7,000 165,000 243,000 90,820 225,000 665,000 38,800 4,600 126,000 6,000 380,000 400,000 37,000 415,000 510,000 236,000 848,200 35,000 20,000 160,000 People displaced 775 0 50 4,959 100,000 899 0 30,000 446 3,445 10,000 1,300,000 96,000 3,272 2,800 59,000 45,000 n. a. 1,000 544 6,200 90,000 9,000 55,000 4,000 6,150 1,500 n. a. 5,700 2,500 50,000 30,000 80,500 15,000 0 10,800 29,000 50,000 4,945 How to cite Good and Bad Dams, Essay examples