Strategical approach of comprehension

Strategical approach of comprehension Disadvantages of the Strategical Approach of Comprehension For students of English, it is listening comprehension that usually seems to be the hardest to master among the different skills of language learning. Therefore, there are numerous theories published in order to make listening tasks more effective and to devise more useful types of practice. One of these methods proposes the separate improvement of particular sub-skills, of which listening comprehension is claimed to consist, and it also suggests the application of listening strategies, which theoretically make listening easier. It is not hard to realize, though, that however tempting they might seem, the strategic approach of listening comprehension means more needless work to students than improvement. To begin with, it has a negative effect on students results that this approach of comprehension underestimates the importance of practice. As Field (1998) formulates it, For fifteen years it has been axiomatic that more reading does not necessarily mean better reading. (p. 112). First, this can mean that the exclusive training of sub-skills does not allow comprehension to improve as a whole. Second, since different types of exercises require different strategies, learners might perform badly in the types not practised extensively. In summary, the subordinated role of practice can have a negative effect on students. The second reason is that the exclusive use of authentic texts can significantly slow down the progress of students at a lower level of proficiency. First, as the strategic approach fails to realize the importance of grading texts, it can be unnecessarily difficult although the more one can understand in a listening task, the more useful the particular task is, (Ridgway, 2000). Second, a less proficient student might lose motivation if the listening texts seem to be impossible to understand. Third, the theory of listening strategies suggests predicting the meaning and guessing unknown words from content; that, however, can lead to the reduced expansion of vocabulary. To summarize, the use of authentic texts can mean a definite disadvantage on certain levels of proficiency. Finally, one could say that listening strategies can prove extremely helpful for learners, but actually it consumes a significant amount of resources to practice these techniques. On the one hand, practising each of these techniques separately consumes a far larger amount of time than a student could afford at the expense of training other areas of language proficiency. On the other hand, the constant effort to choose the appropriate strategy can be very difficult and exhausting for students and is often futile; Field (2000) himself tends to admit this, as well, it seems that they may not be capable of employing it appropriately in relation to a particular listening text or of combining it successfully with other strategies that they have encountered. (p. 192). To summarize, the application of strategies requires more time and energy than the advantages it provides. In conclusion, it can be seen through various reasons that the strategical approach of comprehension is not as beneficial for students as it might seem in the beginning. First, it provides a smaller amount of practice for the students. Second, the extensive use of authentic texts suggested by this theory can be inappropriate for certain students. Third, the strategy-based approach is definitely more time- and energy-consuming than it is helpful. From the above mentioned points, it is clear that the use of different strategies is not required for effective language learning. References: Field, J. (1998). Skills and strategies: towards a new methodology for listening. ELT Journal, 52(2), 110-118. Field, J. (2000). Not waving but drowning: a reply to Tony Ridgway. ELT Journal, 54(2), 186-195. Ridgway, T. (2000). Listening strategies- I beg your pardon?. ELT Journal, 54(2), 179-185.

Gender Equality and the Law Essay -- Feminism Equality Social Issues E

Gender Equality and the Law One of Ruth Bader Ginsburg’s primary goals of the Women’s Rights Project’s litigation was to prove that stereotypical treatment of gender under the law was unconstitutional. It was Ginsburg’s goal to make the Court realize that â€Å"the law’s differential treatment of men and women, rationalized as reflecting â€Å"natural† differences between the sexes, historically had tended to contribute to women’s subordination† (Ginsburg 11). Ginsburg carefully selected cases which she felt would produce the greatest results. To do this, she â€Å"pursue(d) a series of cases that illuminate(d) the most common instances of gender distinctions in the law (Ginsburg 14). In three cases, Reed v. Reed, Frontiero v. Richardson, and Craig v. Boren, Ginsburg was successful in arguing that legal distinctions on the basis of sex qualified as suspect classifications. Therefore the state must show a compelling interest in its legislation, and â€Å" must demonstrate that the means are necessarily related to the ends sought to be achieved by the statue and are the least restrictive† (Mezey 16). Today, it is debatable whether women are equal to men in the eyes of the law. However, without the Women’s Rights Project’s litigation of the nineteen seventies, women would be remain subjected to stereotypical legal treatment and thus would still be regulated to an inferior status of citizenship. The first case in which the Supreme Court invalidated a law which discriminated on the basis of sex became extremely important because it set the president to which many future opinions would refer. Reed v. Reed, 1971, Ginsburg argued that Sally Reed was denied equal protection which should have been protected by the Fourteenth Amendment, when her husband wa... ...udes by stating in it’s opinion for Goesart v. Cleary 1948, that â€Å"Michigan could, beyond question, forbid all women from working behind a bar† (Goldstein 102 ). However, in 1976 the Supreme Court â€Å"refused to approve laws which were based on archaic and overbroad generalizations or on old notions of role typing† (Mezey 19). Clearly, great strides have been taken towards anti stereotypical legislation, in roughly a quarter of a century. Legal equality for women is in large part due to the Women’s Rights Project’s litigation of the nineteen seventies and the legal genius of Ruth Bader Ginsburg who made the Court scrutinize sex Discrimination cases much more closely. The result is that the Supreme Court must â€Å"test policies and practices by asking whether they integrally contribute to the maintenance of an underclass or a deprived position because of gender† (Ginsburg 20).

Die Casting

Presentation Pressure Die Casting Sam Mande Deepak Ch Veera Pratap Vamsi raj J (BUB0912011) (BUB0912016) (BUB0912013) (BUB0912010) M. Sc. (Engg. ) in Engineering Manufacturing and Management Module Leader : Dr N S Mahesh M. S. Ramaiah School of Advanced Studies 1 History Casting since about 4000 BC†¦ Ancient Greece; bronze statue casting 450BC Iron works in early Europe, e. g. cast iron cannons from England 1543 2 M. S. Ramaiah School of Advanced Studies Introduction Die casting is a very commonly used type of permanent molding process in which surface finish and tolerance of die cast parts is good that post-processing can be eliminated in many cases. †¢ Die casting molds are expensive and require much time to manufacture they are generally called dies. †¢ Die casting is done for high volume with high details, and value added economically priced cast parts. M. S. Ramaiah School of Advanced Studies 3 Die Casting Process 1. Die is ready to start 2. Die is closed, molten metal is filled in the chamber . The ram pushes the molten metal in to the die 4. Die cavity is filled with molten metal in few micro seconds 4 M. S. Ramaiah School of Advanced Studies Die Casting Process 5. The metal than solidifies 6. The component casted is ejected from the die 7. The die is cleaned and sprayed with releasing agents 8. Die is ready for the next cycle 5 M. S. Ramaiah School of Advanced Studies Die casting process †¢ In Die-Casting the metal is injected in to the mold under high pressure 10-210 Mpa (1,450-30500 psi) Casting can produce very complex geometry parts with internal cavities and hollow sections. †¢ It is economical, with very little wastage, the extra metals in each casting is melted and reused †¢ The clamping pressure exerted on the die is Rated in â€Å"Clamping tons† †¢ The capacity varies from 400 tons to 4000 tons. M. S. Ramaiah School of Advanced Studies 6 Die Casting Process †¢ Most of the die castings are made from non-ferrous metals, particularly zinc, copper, aluminum, magnesium, lead, and tin based alloys, although ferrous metal die castings are possible The die casting method is especially suited for applications where a large quantity of small to medium sized parts are needed with good detail , a fine surface quality and dimensional tolerance †¢ There are two common types of die casting: hot- chamber process and cold-chamber process †¢ Example: Pressure die casting M. S. Ramaiah School of Advanced Studies 7 Cold chamber process †¢ The essential feature of this process is the independent holding and injection units †¢ In the cold chamber process metal is transferred by ladle, manually or automatically, to the shot sleeve †¢ Actuation of the injection piston forces the metal into the die.This is a single-shot operation †¢ This procedure minimizes the contact time between the hot metal and the injector components, this extend their operating life M. S. Ramaiah School of Advanced Studies 8 Cold chamber process †¢ Hot melt is pressurised with high-speed injection is likely to enter air in the metal, which can cause porosity in the castings †¢ The cold chamber process is used for the production of aluminium, copper base alloys and steel castings †¢ Next to zinc, aluminium is the most widely used die-casting alloy The mould has sections, which include the â€Å"cover† or hot side and the â€Å"movable† or ejector side M. S. Ramaiah School of Advanced Studies 9 †¢ The die may also have additional moveable segments called slides or pulls, which are used to create features such as undercuts or holes which are parallel to the parting line †¢ Available machine capacity ranges 300 to 4000 T clamping pressure M. S. Ramaiah School of Advanced Studies 10 Cold-Chamber Die Casting Process Operating Sequence of the ColdChamber Die Casting ProcessThe die is closed and the molten metal is ladled into the cold-chamber shot sleeve. The plunger pushes the molten metal into the die cavity where it is held under pressure until solidification. Ejector pins push the casting out of the ejector die and the plunger returns to its original position The die opens and the plunger advances, to ensure that the casting remains in the ejector die. Cores, if any, retract. M. S. Ramaiah School of Advanced Studies 11 Applications †¢ †¢ †¢ †¢ Fuel Pumps Carburetor Parts Valve Covers Handles M. S. Ramaiah School of Advanced Studies 2 Hot Chamber Process †¢ Hot chamber process is the process where the metal is maintained at an appropriate temperature in a holding furnace adjacent to the machine †¢ The injection mechanism is located within the holding furnace and a part of it is therefore in constant contact with the molten metal †¢ Pressure is transmitted to the metal by the injection piston through the gooseneck and into the die †¢ On the return stroke metal is drawn into the g ooseneck for the next shot M. S. Ramaiah School of Advanced Studies 13 Hot Chamber Process In this process there is minimum contact between air and the metal to be injected †¢ Due to the contact between the metal and parts of the injection system hot chamber is restricted to zinc-base alloys †¢ The Zinc alloys are mostly used in the die casting process †¢ They have physical, mechanical and casting properties †¢ Applications limited to low melting point metals that do not chemically attack nozzle and other mechanical components M. S. Ramaiah School of Advanced Studies 14 Hot Chamber Process †¢ The main advantage of this process includes fast cycle times of approximately 15 cycles per minute Due to this process, hot chamber machines are used with Casting metals likes zinc, tin, lead, and magnesium M. S. Ramaiah School of Advanced Studies 15 Hot Chamber Die Casting Process M. S. Ramaiah School of Advanced Studies 16 Advantages †¢ Economical for large produ ction quantities †¢ More accuracy †¢ Surface finish is good †¢ Thin sections are possible †¢ Fast cooling leads small grain size and also good strength to casting †¢ Dimensional control is achieved †¢ Due to thin walls, weight is reduced M. S. Ramaiah School of Advanced Studies 17Disadvantages †¢ High tooling costs †¢ Size restrictions of castings †¢ Volume restrictions †¢ Generally limited to metals with low metal points †¢ Part geometry must allow removal from die M. S. Ramaiah School of Advanced Studies 18 Applicability †¢ Excellent for large and complicated shapes, particularly with internal features †¢ Can produce net shape or near net shape components †¢ Used where mechanical properties are not important †¢ Used where solid state processing is difficult or uneconomical M. S. Ramaiah School of Advanced Studies 19 Conclusion Depending on the field of application Die casting plays a crucial role in fulfill ing the requirement accordingly &depending on the size and shape of component and material used the appropriate process should be selected †¢Mainly by controlling and maintaining the various parameters such as material, machine, cycle time and impression(mould)the effectiveness can be improved and its directly reflects in M. S. Ramaiah School of Advanced Studies 20 †¢ Reducing maintenance cost †¢ Quality of component is improved †¢ Rejection rate is less †¢ Wastage of material is less Life of machine and mould is improved †¢ By following these parameters overall process will be effective & which leads to economic effectiveness M. S. Ramaiah School of Advanced Studies 21 Reference [1] Unknown. , pressure die casting process, www. wikipedia. com, [2] Unknown, Advantages of PDC, www. dynecast. com, [3] Unknown. , cold chamber die casting, www. diecastetechnology. blogspot. com , [4] Unknown. , Hot chamber die casting, www. duecasting. com [4] Module notes ENG:MATLS. Dr Ns mahesh MSRSAS Bangalore. , M. S. Ramaiah School of Advanced Studies 22 THANK YOU M. S. Ramaiah School of Advanced Studies 23

Samuel Adams, Revolutionary Activist and Philosopher

Samuel Adams (September 16, 1722–October 2, 1803) played an important philosophical and activist role in early advocating the independence of the North American British colonies, and the eventual founding of the new United States. Fast Facts: Samuel Adams Known For: Important activist, philosopher, and writer during the American Revolution against Great BritainBorn: September 16, 1722 in Boston, MassachusettsParents: Samuel and Mary Fifield AdamsDied:  October 2, 1803 in BostonEducation: Boston Latin School and Harvard CollegeSpouse(s): Elizabeth Checkley (m. 1749–1757); Elizabeth (Betsey) Wells (m. 1764–his death)Children: Six children with Elizabeth Checkley: Samuel (1750–1750), Samuel (born 1751), Joseph, (1753–1753), Mary (1754–1754), Hannah, (b. 1756), stillborn son (1757) Early Life Samuel Adams was born on September 27, 1722, in Boston, Massachusetts, the eldest surviving son of 12 children born to Samuel (1689–1748) and Mary Fifield Adams: only Samuel, Mary (b. 1717), and Joseph (b. 1728) survived to adulthood. Samuel Adams, Sr., was a merchant, a popular Whig Party leader, and the Deacon of the local Congregational Church, where he was known as Deacon Adams. Deacon Adams was one of 89 grandchildren of the Puritan colonist Henry Adams, who left Somersetshire in England for Braintree (later renamed Quincy), Massachusetts in 1638—Sam Adams cousins included John Adams, who would become U.S. president in 1796. Mary Fifield was the daughter of a local businessman in Boston, a devout woman with an artistic bent. The Adams family early grew prosperous, building a large house on Purchase Street in Boston, where Samuel Adams and his siblings grew up. Deacon Adams was a huge influence on Samuel Adams life. In 1739, he was chosen to help draft legislative instructions for the Massachusetts colonys general assembly and became a formidable political force in the Whig party, serving as a representative to the provincial assembly. Together, Deacon Adams and his son fought a battle with the Royal government over a land bank scheme that lasted a decade after the Deacons death. The elder Adams had been part of the creation of a bank to assist farmers and business people get started. The colonial government rejected his right to do such a thing, and over the next two decades, it fought father and son to take possession of their property and businesses as recompense. Education Adams attended Boston Latin School and then entered Harvard College in 1736 at the age of 14. He started out studying theology but found his interests swinging towards politics. He received his bachelors and masters degrees from Harvard in 1740 and 1743, respectively. After graduation, Adams tried numerous businesses, including one he started on his own. However, he was never successful as a commercial businessman—his father saw that Sam had a growing dislike for authority of any kind. In 1748, Samuel Adams did find a direction: he and his friends formed a club to debate issues and launch a publication to shape public opinion called The Public Advertiser, in which Adams exercised his considerable persuasive writing skills. That same year, his father died. Adams took over his fathers business enterprise and turned to the part-time career that he would enjoy for the rest of his life: politics. Marriage and Early Political Career Adams married Elizabeth Checkley, the daughter of the pastor of the Congregational Church in 1749. Together they had six children, but all but Samuel (born 1751) and Hannah (born 1756) died as infants. In 1756, Samuel Adams became one of Bostons tax collectors, a position he would keep for almost 12 years. He was not the most diligent in his career as a tax collector, but instead continued and increased his writing and activism, quickly becoming a leader in Bostons politics. He became involved in numerous informal political organizations that had a large control over town meetings and local politics. On July 25, 1757, his wife Elizabeth died, giving birth to their last child, a stillborn son. Adams remarried on December 6, 1764, to Elizabeth (Betsey) Wells; his first wifes father officiated. Agitation Against the British After the French and Indian War that ended in 1763, Great Britain increased taxes in the American colonies to pay for the costs that they had incurred for fighting in and defending them. Adams strenuously opposed three tax measures in particular: the Sugar Act of 1764, the Stamp Act of 1765, and the Townshend Duties of 1767. He believed that as the British government increased its taxes and duties, it was reducing the individual liberties of the colonists, which in turn would lead to even greater tyranny. Adams held two key political positions that helped him in his fight against the British: he was the clerk of both the Boston town meeting and the Massachusetts House of Representatives. Through these positions, he was able to draft petitions, resolutions, and letters of protest. He argued that since the colonists were not represented in Parliament, they were being taxed without their consent. Thus the rallying cry, No taxation without representation. Taxes and Tea Parties Adams main suggestion for political action against the British was that the colonists should boycott English imports and hold public demonstrations. Although mob violence was common in the early days of the revolution, Samuel Adams never supported the use of violence against the British as a means of protest and supported the fair trial of the soldiers involved in the Boston Massacre. In 1772, Adams helped found a committee meant to unite Massachusetts towns against the British, which he later expanded to other colonies. In 1773, the British passed the Tea Act, which was not a tax and would have resulted in lower prices on tea. However, it was meant to aid the East India Company by allowing it to bypass the English import tax and sell through merchants it selected. Adams felt that this was just a ploy to get colonists to accept the Townshend duties that were still in place. On December 16, 1773, Adams spoke at a town meeting against the Act. That evening, dozens of men dressed as Native Americans boarded three tea importing ships that sat in Boston Harbor and threw the tea overboard, an act destined to be called the Boston Tea Party. The Intolerable Acts The British responded to the Tea Party by closing down the port of Boston, cutting off the lifeblood of trade to the citys economy. Some British lawmakers such as Edmund Burke, a member of the House of Commons, warned it would be counterproductive, that instead they should focus their anger at the guilty persons: John Hancock and Samuel Adams. But instead of punishing Adams and Hancock directly, the British government passed what would become known as the Coercive Acts or, more tellingly, the Intolerable Acts. In addition to the Boston Port Act, which itself included the limiting of town meetings to one a year, the government passed the Impartial Administration of Justice Act, that said that the Massachusetts governor should send government officials accused of capital crimes to England. The Quartering Act allowed British troops to use the colonists buildings as military barracks. Rather than intimidating or deterring him, Adams saw this as further evidence that the British would continue to limit the colonists liberty, and he counseled a hard line against King George III and his government. Representative Adams On May 3, 1774, Boston held its annual meeting to elect representatives to the Massachusetts House: Adams won 535 of the 536 votes cast and was named the moderator of the Town Meeting. They met again three days later and adopted a resolution calling for unity with the other colonies in a boycott and embargo of Britain in protest of the Boston Port Act. Paul Revere was sent out with a letter to the southern colonies.   On May 16, a March 31 report from London reached Boston: a ship had sailed with orders to bring Adams and Hancock back to England in irons. On the 25, the Massachusetts House of Representatives met in Boston and unanimously elected Samuel Adams as clerk. The Governor, General Gage, ordered the House adjourned until June 7 and moved to Salem, but instead, the House met on September 1, 1774, in Philadelphia: the first Continental Congress. Continental Congresses In September 1774, Samuel Adams became one of the delegates at the First Continental Congress held in Philadelphia, and his role included assisting with the draft of the Declaration of Rights. In April 1775, Adams, along with John Hancock, was finally a target of the British army advancing on Lexington. They escaped, however, when Paul Revere famously warned them. In May 1775, the Second Continental Congress was held, but Sam Adams did not hold a public role. Instead, he was part of the Massachusetts ratifying convention for the U.S. Constitution and helped write the Massachusetts state constitution. Although his eloquent written and oral support for the revolution continued to be heard, Adams role in the Continental Congress was primarily military: he served on several committees for military defense and armaments, and those for assessing the colonies defensive needs. That was his choice: he felt the importance of being prepared for the eventual war. Once hostilities began, he struggled to convince everyone that reconciliation was a delusion leading directly to destruction. Once the Declaration of Independence was made, Adams continued to work tirelessly as a leader for military activities, to gain foreign aid, and to get the machinery of government in order and functioning. In 1781, even though the final battle had not yet been won, he retired from Congress. Legacy and Death Adams had not given up on politics, however. He lost a highly contested bid for the U.S. House of Representatives in 1788, but when John Hancock ran for Massachusetts governor the following year, he agreed to run as Hancocks lieutenant. The pair was elected. Adams served as Hancocks lieutenant governor for four years and when Hancock died in 1793, he ascended to the governors chair. During the late 1790s, those in the U.S. government were divided into federalists, those who preferred a strong central government, and Republicans, who did not. As a republican-minded governor in a federalist state, Adams could see that at least for the moment, the federalists were winning out. When Samuels federalist cousin John Adams won the presidency, Adams retired from public life. Samuel Adams died on October 2, 1803, in Boston. Sources Alexander, John K. Samuel Adams: Americas Revolutionary Politician. Lanham, Maryland: Rowman Littlefield, 2002.Irvin, Benjamin H. Samuel Adams: Son of Liberty, Father of Revolution. Oxford: Oxford University Press, 2002.Puls, Mark. Samuel Adams: Father of the American Revolution. New York: St. Martins Press, 2006.Stoll, Ira. Samuel Adams: A Life. New York: Free Press (Simon Schuster), 2008.