The Use of DDT in Malaria Vector Control Article

The Use of DDT in Malaria Vector Control - Article Example As DDT is mainly used in indoors, it eventually generates the risks of deterioration of human health by a certain degree. This can be owing to the reason that direct exposure of this pesticide can damage the health of humans. Also, it can also be identified that there exist no such substitutes of DDT in order to prevent human health from severe diseases such as malaria. The other significant toxicology data which can be taken into concern in order to make the decision concerning the use of DDT in malaria vector control is that DDT is also responsible for causing various severe complexities. These complexities might comprise early pregnancy loss, fertility loss, pancreatic cancer, breast cancer, leukemia, diabetes, pyrethroids and neurodevelopmental deficits among others. By taking into concern the aforesaid toxicology data, it can be ascertained that DDT indeed imposes serious health hazards to the humans which is a major cause of concern. It can be viewed in this regard that due to the seriousness of this issue, countries such as the United States is strongly working upon to develop appropriate alternative pesticide in order to reduce the health hazards and provide health-related benefits to the humans. But relating to the case of Africa which has a record of occurring the disease i.e. malaria, World Health Organization has allowed indoor use of DDT. But the main dilemma concerning this factor is that DDT also acts as a strong deterrent to fight against malaria as well as vector control... It can be viewed in this regard that due to the seriousness of this issue, countries such as the United States is strongly working upon to develop appropriate alternative pesticide in order to reduce the health hazards and provide health related benefits to the humans. But relating to the case of Africa which has a record of occurring the disease i.e. malaria, World Health Organization (WHO) has allowed indoor use of DDT. But the main dilemma concerning this factor is that DDT also acts as a strong deterrent to fight against malaria as well as vector control and at the same time, it poses serious chronic health hazards to the humans (Agency for Toxic Substances and Disease Registry, â€Å"DDT, DDE, AND DDD†). However, a decision of creating an alternative pesticide is needed to be taken which may help in resolving this particular issue by a certain degree (Berg, â€Å"Global Status of DDT and Its Alternatives for Use in Vector Control to Prevent Disease†). 2. USE THE FO UR PHASES OF THE DISPOSITION OF A TOXIC COMPOUND TO ASSESS THE TOXICITY OF DDT The four phases have been described hereunder. Absorption-DDT mainly gets absorbed in the human body when the pesticide is exposed to the skin and lung. Ingestion also happens due to DDT which enters into the human body causing deterioration in the health of human beings at large. Distribution-If DDT is able to enter the human body, then it is circulated/distributed to the entire body parts in a fast way. It also contains high amount of fat which quickly spreads into the body imposing adverse effect upon human’s health. Metabolism-The metabolism phase or process of DDT primarily include certain effective processes that encompass dechlorination, dehydrochlorination, oxidation,

Focusing on the first scene Essay Example for Free

Focusing on the first scene Essay At the beginning of the play, from Alfieris monologue you can tell that there is constant tension between the people in the neighbourhood because of when he says how I often think that behind that suspicious little nod of theirs lie three thousand years of distrust. This shows that this trust hasnt been broken recently, it has been going back generations upon generations. The comment Oh, there were many here who were justly shot by unjust men. Justice is very important here says to the reader that no matter how much violence it may lead to it will be done, and in the hands of the Italian civilians. They dont go to the police and instead fight it out themselves. Things are obviously starting to calm down now though because Alfieri no longer keeps a pistol in his filing cabinet and says that people are now quite civilized, quite American. When we first meet the Carbone family, we see an excited Catherine welcoming Eddie home from a long day of working in the docks. Catherine obviously has been waiting around for his approval of her new dress because she is very excited when she asks him what he thinks, (running her hands over her skirt) I just got it. You like it? and when he also asks about her hair change she wants his immediate approval. Eddie delivers with flattering comments like oh, your mother was alive to see you now and you look like one of them girls that went to college which is a complement in itself because it is saying she looks smart and sophisticated and not like any average person. Eddies comment about how the dress looks a bit short when she sits down and how she walks is what reveals his protectiveness over her and how she may look attractive to other men. Listen, you been giving me the willies the way you walk down the street Im telling you youre walking wavy He doesnt like that she may seem attractive to other guys in the neighbourhood. This upsets Catherine because Eddies approval obviously must mean so much to her. She even almost breaks into tears because he disapproves of how she walks. Eddie has always treated Catherine like a baby, even now when shes 17 years old he says Youre a baby, you dont understand these things. when he talks about her waving to Louis he warns her that I could tell you things about Louis which you wouldnt wave to him no more. Louis is obviously not the nice guy that Catherine thinks he his and seems like he has a dark past. From Catherines comment about how I wish there was one guy you couldnt tell me about means that Eddies has a dark story about every guy in the neighbourhood which is so bad it would actually lead to an end of conversation between them and Catherine. Beatrice and Eddies relationship has an obvious problem which is that he has more feelings for Catherine than he does for Beatrice. Which Beatrice realises but Eddie doesnt. At the beginning Beatrice isnt so open about the fact that she knows Eddies has feelings for his niece, but after some time she starts to argue with Eddie whenever its just them left in the room. But right now at the beginning Beatrice doesnt speak it out. When Eddie tells Catherine that Beatrices cousins have landed, B. is very concerned about how the house looks and that she hasnt bought a new table cloth (astounded and afraid) Im I just I cant believe it! I didnt even buy a new tablecloth; I was gonna wash the walls. Eddie is actually a nice and caring person and not just the guy who brings in the money. He reassures Beatrice that Listen, theyll think its a millionaires house compared to the way they live this calms her down a bit but she is still a little doubtful until Eddie says Youre saving their lives, whatre you worrying about the table cloth? They probably didnt see a tablecloth in their whole life where they come from which begins to calm her down. When Beatrice and Catherine reveal to Eddie that Catherine may start working, it isnt surprising that Eddie is worried because he has feelings for her and obviously doesnt want her to go to work and meet other men. Also Eddie obviously usually has say in the house because as soon as they say Catherine has a job he replies with what job? Shes gonna finish school. When Catherine tries to change his mind he interrupts her and says No no, you gonna finish school. It seems everything has to go through eddies approval before anybody can make any changes to anything. But when the two women manage to get him to half agree he still isnt sure about it. The stage direction showing that hes strangely nervous proves this. It seems like there is no end to his questions because it goes from wheres the job? What company? to Nostrand Avenue and where? to what about all the stuff you wouldnt learn this year though. Eddie is just trying to keep Catherine at school so she will still be living in the house. If she makes her own money sooner or later she will move away. If she has been offered a job and been told she is the best student in the class there is no more for her to learn. Then it turns to That aint what I wanted, though. Which shows that Eddie had a plan set out for Catherine this whole time which would probably keep her in the house for as long as possible and now she wont be following it. He still tries to convince her that she shouldnt go to work by saying Near the Navy Yard plenty can happen in a block and a half. And a plumbing company! Thats one step over the water front. Theyre practically longshoremen. Eddie himself is a longshoreman so this obviously means if she is going to leave he wants her to leave to better people than himself or Louis or the plumbers at her stenography job. Beatrice replies with Yeah, but shell be in the office, Eddie but again its not what Eddie had in mind. He had had good intentions for Catherine because he wanted her to be with different kind of people. I want you to be in a nice office. Maybe a lawyers office in New York in one of them nice buildings. He obviously doesnt want her to go because when Beatrice tells him to think about it (he is silent, staring down at the tablecloth, fingering the pattern). Beatrice tells him that shell get out of the subway and be in the office in two minutes but Eddie is somehow sickened by the idea of her working in that neighbourhood. After some time Eddie actually agrees to let her work, Catherine is excited and says that she will buy new dishes with her first pay and Eddie replies with a sudden and then youll move away Catherine denies this accusation but Eddie still carries on with Why not? Thats life. And youll come visit on Sundays, then once a month, then Christmas and New Years, finally Catherine again denies the accusation but Eddie is hurt that she will be leaving him and the house and this shows he isnt ready to move on yet.

Graduation Speech :: Graduation Speech, Commencement Address

Well, seniors, here we are. It is time for us to "take on the world" as the popular Christian song states. Not only are we going to be responsible for taking on the world in the near future, but we will also be responsible for many, many other things. Just what we need, right? Well, think about it. New college classes, new jobs, new friends, possibly new spouses in the slightly distant future, new rug-rats in the more distant future. I don't know about you, but the idea of the world giving that much responsibility to someone like -- you fill in the blank -- scares me severely. Are we going to make it? If so, how? To help answer these questions, we needn't look any further than one of the greatest of our new obligations: the encouragement of one another. Now before you write me off as a lunatic or a "softy" (or both), think on the word I just used. Encouragement. Webster says that to encourage is "to inspire with courage, spirit, or hope;" but these are just mere words, right? How can a dictionary express the meaning of something that can change a person's life in a moment or lift someone from the abyss of despair to that wonderful feeling of being loved and needed? I can tell you truthfully that without the daily encouragement that I get from those around me, I would not be standing before you this evening. These people include my parents, my friends, my teachers, anyone who is able to say a nice world to me to inspire me to do my best and keep going. All of you must have experienced some form of encouragement in your lives or else you wouldn't be joining me on this football field to celebrate our completion of high school. My point is this: Encouragement is one of the most powerful forces that can be unleashed on this planet. Here's a little list of things that can be accomplished without encouragement ... Fairly short list, isn't it? I do not have a list of the things that are possible with encouragement because the use of that much paper would be environmentally devastating. You get the picture. We need encouragement and we need it as often as possible. Just like the air we breathe, if we lack encouragement in our lives we often feel suffocated. Are you getting enough of it in your life, or are you suffocating?

Social Issues in Colonial Africa

The title of a book may give the reader an idea of the story or it may make more sense after reading the book. The title Heart of Darkness by Joseph Conrad prepares the reader for something unpleasant.The title Things Fall Apart by Chinua Achebe also gives the reader a hint of bad things to come. After reading both it is clear to the reader the titles refer to the terrible social issues caused by the appearance of European colonizers in Africa.The â€Å"darkness† is not just the absence of light typical in an African jungle. It is the mental and emotional dark side of the colonizers, and the dark result of their intrusion on African societies. There are many â€Å"things† that â€Å"fall apart† in Africa when the Europeans arrive. There is an immediate breakdown in communication between the two cultures. Then the domination and brutality of the Europeans causes the African society to â€Å"fall apart†.Both books show the terrible result to the Africans at the hands of the Europeans. Both authors are very effective in bringing the reader â€Å"into† the story. However, each author uses different methods and styles to illustrate the social attitudes, issues and impact arising from colonization.Joseph Conrad uses a narrator, Charlie Marlow, to tell the story of Heart of Darkness. Marlow is a sailor who tells his shipmates the story of how he had worked for a European trading company in Africa.He was employed to take a boat up-river from a company headquarters to bring back Mr. Kurtz, their best ivory trader. Marlow soon witnesses the European attitude and treatment of the Africans. He describes the horrible scene of the Europeans’ slave laborers: â€Å"They were dying slowly—it was very clear.They were not enemies, they were not criminals, they were nothing earthly now—nothing but black shadows of disease and starvation, lying confusedly in the greenish gloom† (Conrad 64). One of the men who worked at the station was a clerk who tells Marlow â€Å"When one has got to make correct entries, one comes to hate those savages—hate them to the death† (Conrad 66).Marlow learns that the behavior of the Europeans at their headquarters is just the beginning. Although Kurtz is the company’s best ivory trader, he is described as much more to Marlow: â€Å"He is a prodigy†¦an emissary of pity, of science, and progress, and devil knows what else† (Conrad 75). Marlow can begin to see the dark side of the company as the clerk relates Marlow is â€Å"of the new gang—the gang of virtue.The same people who sent him specially also recommended you† (Conrad 75). Marlow discovers a report Kurtz had written for the company describing his experience in the jungle with the Africans. Marlow states that in light of all that happened, and would happen, the beginning of the document â€Å"strikes me now as ominous.He began with the argument that we whites, from t he point of development we had arrived at†¦ ‘approach them with the might of a deity’† (Conrad 111).  It is obvious that Kurtz realized that with all of the â€Å"modern† European goods and weapons he would appear to the Africans as some sort of superior being. What would be even more ominous was Kurtz’ â€Å"note at the foot of the last page†: ‘Exterminate all the brutes!’† (Conrad 111).

Guyana Defence Force in National Development

THE GUYANA DEFENCE FORCE IN NATIONAL DEVELOPMENT: CIVILIAN-MILITARY RELATIONS – SOME PERSPECTIVES The case for the Guyana Defence Force to be involved in national development is enshrine in the birth of the Force and it is articulated as the third part of the Force’s tripartite role: 1. â€Å"Defend the  territorial integrity  of Guyana. 2. Assist the civil power in the maintenance of law and order when required to do so. 3. Contribute to the economic development of Guyana. †[1] The question then has to be, how will the Force be most effective in fulfilling this role. This essay contends that good civil-military relations with government and non-government organisations are critical to the successful fulfilment of this role. To demonstrate the relationship between successful national development activities and good civil-military relations, I will examine areas of development the Force can be most effective and show that the level of effectiveness will be driven by the quality civil-military relations in the said area. What then are the areas of development that the Guyana Defence Force can be most effective? The following areas of development were selected because the military role and level of success is easily measureable: 1. Engineering – infrastructural work; road construction, housing projects for low income earners, etc. 2. Health services – medical outreaches; military doctors, dentists providing service in hinterland areas, etc. 3. Education – military personnel both soldiers and civilians are employed as teachers in hinterland areas where there are limited schools, etc. 4. Economic – military personnel being employed on economic projects; such as the establishment of micro-industries, for example, farming. . Administrative – Officers are seconded to administrative positions in government agencies and even the other Services of the Joint Services. 6. Aviation – Augmenting the transportation of people and goods to the hinterland regions. Throughout most of its history the Force has been involved in national development by way of executing engineering projects particularly in the areas of hinterland roads and bridges construction. Also, the construction of low cost housing and airstrip rehabilitation are other areas where the Force participated in engineering works. This commitment to national development by way of executing engineering projects was highlighted in â€Å"Guyana’s Draft Second Development Plan, 1972-1976 which assigned specific responsibilities, to the Engineer Corps, for the construction of hinterland roads and bridges, the upgrading of airstrips and projects such as the rehabilitation of the hydro-electric power station at Tumatumari†[2] The success of the Force involvement in these ventures is commendable, however, the Force was unable to remain committed to such ventures as a single source agency as time progress. This was due to lack of resources; both human and mainly material. Therefore, one can argue that a civil-military relation framework by way of partnership with a government or non-government would have enhanced the Force’s longevity in its commitment to such ventures. This was not lost to the Force administration and is exemplified in the Force’s most recent commitment to engineering projects as detailed in the Stabroek News. â€Å"Five ranks of the Guyana Defence Force (GDF) received keys to new homes at Tuschen Housing Scheme, East Bank Essequibo last week as part of a an ongoing partnership between Habitat for Humanity Guyana; the Ministry of Housing and the army to assist ranks with affordable housing. [3] Noteworthy is the commitment of government or non-government organisations to have such partnerships with the Force in this sector, as detailed in the same article, â€Å"Chairman of the Management Board at Habit for Humanity, Alex Graham remarked that the GDF has the capacity to play an integral role in various aspects of the housing response while pointing out that the army can also help in the building of homes for persons outside the GDF family. †[4] This demonstrates that there is clear recognition by non-government agencies that good civil-military relations are beneficial to both parties. Further the Force will not be required to singlehandedly seek out and forge these partnership. The Force has a rich history of providing medical services to rural and hinterland villages as part of its medical outreaches. The Force has been impressive in its support to national development in this sector by providing free medical and dental care to thousands of Guyanese. This is not surprising since common to most underdeveloped countries is the lack of capacity to provide quality medical services as you move away from the cities and main towns. This is the case in Guyana and its exasperated by our demographics, terrain in hinterland areas and the lack of adequate transportation facilities to hinterland and rural areas. The support by the Force in this sector has continued throughout its existence and remains source of kudos as highlighted in the following excerpt from Stabroek News. â€Å"Close to 200 Upper Berbice River residents benefited from dental and general medical care when a team from the Guyana Defence Force (GDF) Medical Corps hosted an outreach exercise there recently. According to the army, residents said they were grateful for the exercise and expressed the desire for a doctor to visit at least once per year. †[5] The quality and level of success gained in this sector can be improved with better civil-military relations with government and non-government organisation. Similar sentiments in regards to the value of these relations were expressed by the Chief of Staff in his 2011 Command Directive. â€Å"In 2011, I plan to establish statecraft partnerships with the Ministries of Education and Health. †[6] The use of military personnel to augment the efforts of the Ministry of Education to provide education at any level and in any area of the country has not been a feature of the Force for any substantive period. Notwithstanding this, one can argue that the efforts by the Force to educate its ranks directly impacts on national development. Since when members of the Force return to civilian life their level of technical and vocational education will have a direct impact on how they are integrated to the countries labour force. Therefore the Force commitment to educating its ranks underscores its efforts to national development in this sector. However, the efforts of the Force to educate its ranks have had its own challenges. The main challenge was the ability of the Force to establish a system that linked educational development with the evolution of soldier’s careers. â€Å"As part of their promotion standards, soldiers are required to attain specified levels of academic education but these standards had to be waived since no formal means existed for upgrading soldiers’ education. † [7] The importance of good civil-military relations to enhance the Force performance in this sector has been underscored by the recent efforts by the Force in launching of its Academic Education Programme. 8] This coupled with the Career Development Plan[9] and the advent of â€Å"promotion examinations for promotion up to the rank of major†[10], underscores a recognition by the Force that civilian input and to an extent civilian oversight is critical to success in this sector. Also, the aforementioned planned stat ecraft partnership with the Ministry of Education and the fact that Force Education Department is staffed primarily by civilian teachers, establishes the importance of good civil-military relation for the strengthening of the Force’s capacity in this sector. The Force direct involvement in economic activity in support of national development is demonstrated with its involvement in agriculture. The Force Agriculture Corps has the mandate to produce mainly poultry, pork and eggs to augment the Force’s ration requirements. Throughout its history from since the establishment of Agriculture Corps the Force had measured success in this sector. This success is termed measured since in Guyana’s Draft Second Development Plan, 1972-1976, the Force â€Å"was tasked with the development of farms at Onverwagt in Berbice, Butenabu in Mahaicony, Vergenoegen in the Essequibo, and at Garden of Eden in Dememerara. [11] However, presently the Force only has one farm at Garden of Eden in Dememerara. Hence, after existing in excess of three decades the Force Agriculture Corps has not achieved the capacity to provide the Force with its ration requirements of meat, eggs and vegetables. The lack of fulfilment of its potential in this sector can b e attributed to the lack resources; both human and material. The Force performance in this sector can improve via partnerships with government and non-government organisations. The establishment of such civil-military relations will impact positively on the Force performance in this sector. To this end the Force continues to pursue such partnership as demonstrated with the Force involvement in â€Å"the national pig-breeding programme, a joint effort between the Ministry of Agriculture and the Guyana Defence Force†[12]. The Force at various period of its existence seconded mainly officers and in a few cases other ranks to government and non-government organisation. Officers were primarily seconded to administrative positions in government agencies and even the other Services of the Joint Services. This practice helped in National Development by making managerial and administrative skills readily available to beneficiary government agency. The Force involvement in this sector illustrates the value of good civil-military relations both to the Force and the Nation. This is underscore by the fact that military officers have attained high ranking appointments, namely permanent secretary and currently Accountant General at the Ministry of Finance. The Force since its early days of existence played a pivotal in aviation in Guyana. The Force helped in the pioneering efforts in aviation in Guyana. Aviation is arguably the first area where the value of good civil-military relations and the capacity of the Force to positively impact on National Development were demonstrated. [13] However, as the civilian capacity developed in this sector the Force was seen has having a negative impact in the commercial viability of this sector. I am of the view that the deterioration of civil-military relations in this sector helped in fostering this perception of the Force. There remain numerous areas in this sector where the Force, the private sector, and government and non-government organisations can benefit from good relations. No one entity can satisfy the commercial, security and safety requirements for aviation support in Guyana. The wide expanse of hinterland settlements, the limited aircraft and technically trained personnel suggests that there is room for all stake holders to make a positive impact in this sector. The Guyana Defence Force recognises and accepts it has a role to play in National Development. This is exemplified in the many initiatives and projects the Force has been involved throughout its existence primarily in Engineering, Health Services, Education, Economic, Administrative and Aviation Sectors. The question of how the Force will be most effective in fulfilling its role of contributing to National Development has been answered. The Force must embrace partnership with government and non-government agencies in those sectors where we are poised to make an impact on National Development. This pursuit and ultimate realisation of good civil-military relations will enhance the Force capacity to contribute to national development activities. REFERENCES Best G. A. R. (2010) Career Development Plan Guyana Defence Force. Guyana Defence Force Best G. A. R (2011) Chief of Staff Command Directive. Guyana Defence Force Granger D. A. (1975) The new road. Guyana Defence Force. Granger D. A. (2005) A brief history of the Guyana Defence Force. Free Press. Huntington, S. (1957). The soldier and the state: theory and practice of civil-military relations. Cambridge, Belknap Press of Harvard University Press. Johnson, J. (1981). The role of the military in underdeveloped countries. New Jersey, Princeton University. Greenwood Press Reprint . Lehmann, D. (1979). Democracy and development in Latin America: Economics, politics and religion in the post-war period. Temple University Press. Smith, K. A. and Welch, E. C. (1974). Military role and rule. Massachusetts, Duxbury Press,. Tachau, F. (1974). The developing nations (What paths to modernization? ). New York, Dodd, Mead and Co. Thompson W. S. (1983). The third world: Premises of U. S policy. San Francisco: JOS Press. ———————– [1] Granger D. A The New Road A Short History of The Guyana Defence Force – 1966 -1976, 1975 pg 47. [2] Granger D. A A Brief History of the Guyana Defence Force, 2005 pg75. [3] Stabroek News Sunday, June 15, 2008. 4] Stabroek News Sunday, June 15, 2008. [5] Stabroek News Tuesday, August 17, 2010. [6] Best G. A. R Chief of Staff Command Directive 2011, pg 22. [7] [8] Stabroek News Saturday, April 10, 2010. [9] Best G. A. R Career Development Plan Guyana Defence Force, 2010 pg17. [10] Best G. A. R Chief of Staff Command Directive 2011, pg 39. [11] Granger D. A A Brief History of the Guyana Defence Force, 200 5 pg74. [12] http://www. gina. gov. gy/archive/daily/b080407. html 2011-10-30. [13] See Granger D. A A Brief History of the Guyana Defence Force, 2005 pg75.

Brass Alloys and Their Chemical Compositions

Brass Alloys and Their Chemical Compositions Brass is any alloy consisting primarily of copper, usually with zinc. In some cases, copper with tin is considered ​a type of brass, although this metal historically has been called bronze. This is a list of common brass alloys, their chemical compositions, and the uses of the different types of brass. Brass Alloys Alloy Composition and Use Admiralty brass 30% zinc and 1% tin, used to inhibit dezincification Aichs alloy 60.66% copper, 36.58% zinc, 1.02% tin, and 1.74% iron. Corrosion resistance, hardness, and toughness make it useful for marine applications. Alpha brass Less than 35% zinc, malleable, can be worked cold, used in pressing, forging, or similar applications. Alpha brasses have only one phase, with face-centered cubic crystal structure. Princes metal or Prince Ruperts metal Alpha brass containing 75% copper and 25% zinc. Its named for Prince Rupert of the Rhine and used to imitate gold. Alpha-beta brass, Muntz metal, or duplex brass 35-45% zinc, suited for hot working. It contains both and phase; the -phase is body-centered cubic and is harder and stronger than . Alpha-beta brasses are usually worked hot. Aluminum brass Contains aluminum, which improves its corrosion resistance. Its used for seawater service and in Euro coins (Nordic gold). Arsenical brass Contains arsenic and frequently aluminum and is used for boiler fireboxes Beta brass 45-50% zinc content. It can only be worked hot, produces a hard, strong metal that is suitable for casting. Cartridge brass 30% zinc brass with good cold-working properties; used for ammunition cases Common brass, or rivet brass 37% zinc brass, standard for cold working DZR brass dezincification resistant brass with a small percentage of arsenic Gilding metal 95% copper and 5% zinc, softest type of common brass, used for ammunition jackets High brass 65% copper and 35% zinc, has a high tensile strength and is used for springs, rivets, and screws Leaded brass Alpha-beta brass with an addition of lead, easily machined Lead-free brass As defined by California Assembly Bill AB 1953 contains not more than 0.25 percent lead content Low brass Copper-zinc alloy containing 20% zinc; ductile brass used for flexible metal hoses and bellows Manganese brass 70% copper, 29% zinc, and 1.3% manganese, used in making golden dollar coins in the United States Muntz metal 60% copper, 40% zinc, and a trace of iron, used as a lining on boats Naval brass 40% zinc and 1% tin, similar to admiralty brass Nickel brass 70% copper, 24.5% zinc, and 5.5% nickel used to make pound coins in the pound sterling currency Nordic gold 89% copper, 5% aluminium, 5% zinc, and 1% tin, used in 10, 20, and 50 cents in euro coins Red brass American term for the copper-zinc-tin alloy known as gunmetal considered both a brass and a bronze. Red brass usually contains 85% copper, 5% tin, 5% lead, and 5% zinc. Red brass may be copper alloy C23000, which is 14 to 16% zinc, 0.05% iron and lead, and the remainder copper. Red brass also may refer to ounce metal, another copper-zinc-tin alloy. Rich low brass (Tombac) 15% zinc, often used for jewelry Tonval brass (also called CW617N, CZ122, or OT58) copper-lead-zinc alloy White brass Brittle metal containing more than 50% zinc. White brass may also refer to certain nickel silver alloys as well as Cu-Zn-Sn alloys with high proportions (typically 40%+) of tin and/or zinc, as well as predominantly zinc casting alloys with a copper additive. Yellow brass American term for 33% zinc brass

Updated List Colleges With the Highest SAT Scores

Updated List Colleges With the Highest SAT Scores SAT / ACT Prep Online Guides and Tips If you’ve already taken the SAT, you know it will likely be an important component of your college applications. Maybe you've set a goal score for yourself based on the types of colleges you’re interested in. Even if you haven’t taken the SAT yet or are still considering whether to take it, you probably want to know more about what the most competitive colleges and universities expect when it comes to applicants’ standardized test scores. I’ve compiled a list of colleges with the highest average SAT scores for admitted students. You’ll be able to compare your own SAT scores (or goal scores) with those of top colleges and universities. I’ll also talk about what these rankings actually mean so that you can interpret this information effectively. For example, are these schools the best schools you can attend? Are they the most competitive? What do you do if your SAT scores are below the listed averages? Read on for a list of the top schools ranked by SAT score, and answers to the above questions! Colleges With the Highest SAT Scores: Rankings Let's get right to the good stuff: the list! The colleges below are ranked by mean (average) composite SAT score for admitted students.We've also included the mean scores for each SAT section: Evidence-Based Reading and Writing (EBRW) and Math. Rank School EBRW Math Composite 1 California Institute of Technology (Caltech) 780 790 1560 2 Duke University 760 780 1540 2 Harvard University 770 770 1540 2 University of Chicago 770 780 1540 2 Yale University 770 770 1540 3 Columbia University 760 770 1530 3 Vanderbilt University 770 780 1530 4 Franklin W. Olin College of Engineering 750 770 1520 4 Massachusetts Institute of Technology (MIT) 750 780 1520 4 Princeton University 760 770 1520 4 Stanford University 760 770 1520 5 Harvey Mudd College 740 780 1510 5 Johns Hopkins University 750 760 1510 5 Northwestern University 760 770 1510 5 Rice University 750 770 1510 5 University of Pennsylvania 750 760 1510 5 Washington University in St. Louis 760 770 1510 6 Amherst College 750 750 1500 6 Bowdoin College 750 750 1500 6 Brown University 750 750 1500 6 Dartmouth College 740 750 1500 6 Pomona College 740 750 1500 7 Carnegie Mellon University 740 760 1490 7 Swarthmore College 740 740 1490 7 Tufts University 740 750 1490 7 University of Notre Dame 740 750 1490 7 Webb Institute 740 770 1490 7 Williams College 750 730 1490 8 Carleton College 740 740 1480 8 Cornell University 740 760 1480 If you want more detailed information about admissions statistics (and where you happen to fit) for any of the above schools, click the link to take you to that specific school's admissions page.On this page, you can look at average SAT scores as well as estimate your chances of getting in by entering your test scores and GPA. If you want SAT score information for other schools not listed above, simply search for "[School Name] PrepScholar admissions" on Google. The list above won't mean much without a Rosetta Stone of SAT scores. How Do You Interpret These SAT Rankings? Hopefully, you nowhave an idea of the highest expectations schools can have for students' SAT scores. This information isn't that helpful, though, if you don't know how students tend to perform on the exam. The SAT iscurrently scored out of 1600 points: 800 points possible for the Math section, and 800 points possible for the EBRW section. Currently, the average composite SAT score is 1060. In general, a student is considered to have an excellent SAT score if she is in the top 25% of test takers. To fall within this category, you'd needa composite score of around 1200or higher. On the other hand, a student is considered to have a low SAT score if he is in the bottom 25% of test takers, with a composite score around 910 or lower. Read our guide to learn more about how to think about "good" or "bad" SAT scores. Are These Really the Top Schools? The average SAT scores listed for the schools above are much higher than the overall average - in fact, some of them are pretty close to perfect. Butif a school has dizzyingly high average SAT scores, does this mean it's necessarily a top school? In a sense, yes. Schools that attract the strongest applicants tend to do so because they have excellent reputations and offer strong undergraduate programs. When schools have a stronger student body - undergraduateswith very high SAT scores, for example - they tend to build up a positive reputation and get more competitive as a result. It's a positive feedback loop: strong students with strong SAT scores continue to attract strong students with strong SAT scores. Many of the schools on the list above are ranked on well-known "best colleges and universities" lists, like the one that US News World Report publishes each year. These ranking systems aren't perfect, but they do take many quantifiable factors into account (besides just standardized test scores) when evaluating US schools. You’ll notice, for example, that all of the Ivy League schools are on this list.These schools have such high average SAT scores because they are well-reputed enough to attract students with exceptionalscores. A small side note: you might have noticed a trend in the scores that made you pause. Several of the schools listed tend to have higher Math averages than EBRW averages. Quite a few of these schools are heavy in STEM fields (science, technology, engineering, math);these sorts of schools may weight test scores more heavily in the application process than your average liberal arts institution, which could account in part for their high test averages. With thatsaid,it’s important to note that the best school you can attend isthe school that’s the best fit for you. Perhaps you’re interested in schools with strong Romance-language departments, core curriculums, or generous financial aid programs. The reality is, not all of the schools listed above will meet every student’s criteria. What’s most important to your success in college and beyond is that you find an institution that is able to support and foster your interests, passions, and future career path. You wouldn’t list a school renowned for its engineering program as your top choice, for instance, if you wanted to major in comparative literature! Are These Schools Really the Most Competitive? The way you gauge a school's competitivenessis by looking at its acceptance rate.The greater theratio of student applicants to spots in a new freshman class, the lower a school's acceptance rate will be. Schoolsare defined as competitive if many students are vying for a limited number of spots. In terms of acceptance rates, many of the schools above are some of the most competitive in the country. Several have acceptance rates of less than 10%.There are some equally competitive niche institutionsnot included on the list, such as Cooper Union, the US Naval Academy, the US Military Academy, and Alice Lloyd College - all of which have extremely low acceptance rates. In sum, the top schools ranked by SAT scores do tend to be competitive, but they're not the only institutions with very low acceptance rates. Just because you're lagging behind the group doesn't mean you won't have an opportunity to catch up. What If Your SAT Scores Fall Below the Listed Averages? Do You Still Have a Chance of Getting In? So what do you do if you're trying to get into a very competitive school, but your scores don't measure up? In order to be a competitive applicant,you’ll have to make up for that perceived weakness elsewhere in your application. You can do this, for example, by earning an exceptionally high GPA or making an impressive commitment to community service. Admissions officers consider students' applications holistically - meaning that they don't just focus on standardized test scores. The extent to which you have to "make up" for a low test score with other parts of your application depends on how far you fall below the school's average. At an elite school, it's unlikely you'll get in with very low SAT scores, even if the rest of your application is strong. So how do you know whether your scores fall below a dangerous threshold? Because the scores above are averages, you know that about half of all accepted students will have SAT scores lower than the ones listed. You can also access information on the â€Å"middle 50† for each school - i.e., the scores at the 25th and 75th percentiles for admitted students. This will tell you the range of scores that the middle 50% of accepted students have. You’re generally a safer applicant if you fall in this middle 50% than if you’re in the bottom 25% of students. Another factor to consider is that each school will weigh applicants’ SAT scores a bit differently in the application process. Schools like Washington University in St. Louis, for example, are well known for heavily favoring students with excellent scores. Some other schools may forgive below-average test scores if another part of your application impresses the admissions committee (refer to my examples above). There are even schools that don't require test scores at all! If you want to calculate your chances of getting into a particular school, use our admissions pages. You can find these by Googling "[School Name] PrepScholar admissions." These pages will give you more information about the school you're interested in. Finally, if it turns out that your SAT scores just aren't up to par,consider taking the ACT. All four-year US colleges and universities accept ACT scores, and some students strongly feel that they perform better on the ACT than on the SAT. What's Next? If you're considering adding some of these schools to your college application list, you'll want your SAT scores to be the best they can be. Check out our famous guide to getting a perfect 1600 on the SAT, written by an expert perfect scorer. Don't have a ton of time to prep for your SATbut still want to improve your score? Then read our top SAT tips and strategiesto help you improve your exam performance. Want to improve your SAT score by 160 points?We've written a guide about the top 5 strategies you must be using to have a shot at improving your score. Download it for free now: