Alliance Nissan & Renault Essay

Founded in 1999, the Renault-Nissan Alliance has become the longest-lasting cross-cultural combination among major carmakers. This unique partnership is a pragmatic, flexible business tool that can expand to accommodate new projects and partners worldwide. In the past half-decade, the Alliance has emerged as a buffer to protect partners during regional downturns, and it has accelerated Renault and Nissan’s momentum in some of the world’s fastest growing economies. Renault holds a 43.4% stake in Nissan. Nissan holds a 15% stake in Renault. The cross-shareholding model ensures that both partners have a mutual selfinterest and encourages each to pursue â€Å"win-win† strategies that benefit both. Formed on March 28, 2002, Renault-Nissan BV is a company incorporated under Dutch law and equally owned by Renault SA and Nissan Motor Co., Ltd., responsible for the strategic management of the Alliance. The Alliance has helped Renault and Nissan outperform historic regional rivals, elevating both companies into an elite tier. Together, Renault and Nissan rank in the top three car groups globally.  Based on cross-shareholding and mutual self-interest, the Alliance business platform maximizes synergies without destroying brand identity. In order to achieve competitive economies of scale, many automakers are embarking on collaborations similar to the groundbreaking partnership that Renault and Nissan established 13 years ago.

Accident Rates

More than 60 per cent of road accidents that occur between 10 p. M. And 6 a. M. Are because of drunken driving. A death occurs every 4 minutes on Indian Roads. According to Decca Chronicle, Karakas ranks 3rd in the list of Top 5 states with highest road accidents. More than 60% of road accidents occur because of drunken driving. Decca Chronicle – Karakas ranks 3rd- Top states with highest roads accidents Good afternoon ladies and gentlemen, You as you know are traffic policemen (and women) and we are your senior police officials.Today we are here to discuss an issue of grave importance to each one of us – A new Promotion Policy. Here is an eye opener for the entire Bangers traffic police force. And we hope this sensitizes each one of us to the bigger picture. A death occurs every 4 minutes on Indian Roads. Highest road accidents. In the last three years, we have booked around 35 lake cases for various traffic violations such as reckless driving, drunken driving, over sp eeding, driving without license, driving on no-entry roads, Jumping signals and haphazard 10 p. M. And 6 a. M. E because of drunken driving. As you can see in the Table, the Total no. Of Reported road accidents in Bangers has gone down considerably and yet, Vainglorious do not feel safe on the road. During my interactions with a few of you, I got the sense that beyond the minimum required no. Of cases to be booked every month, very few of you take the initiative of booking additional road offenses. We have been facing a lot of criticism from a leading newspaper that claims that 30% of road offenses go unreported. We realized that this is the main reason behind the facts as they hold.And so, to reward those of you who do your Job diligently, (and I am sure most of you already belong to that bracket), we have devised a new policy. We will follow a quarterly appraisal policy wherein each quarter, the 3 officers who book the maximum number of cases will be awarded a Badge of Honor. This badge will signify your commitment to duty, pride and honor towards your department, city and people and education to work. In addition to this, these three people will also be a part of an exclusive Topper's Club which we hope will keep growing every quarter.This club will provide you the opportunity to interact with high achievers from the entire country during the Bi Annual National Meetings and let your family reap benefits for your hard work in the form of fully sponsored family vacations. And finally, at the time of promotions the most hard working of you all will be preferred. The no. Of badges each of you has will stand testimony to this fact. The one with the highest no. Of badges will be promoted as and when the vacancies arise. And now, I'd like you to have a look at this:

Auditing - report on the audit of Perfect Pies Lmt Essay

Auditing - report on the audit of Perfect Pies Lmt - Essay Example The company’s reserves have also increased during the current financial year which shows that its investors are considering the company lucrative and are planning to have a long term association with it. The company’s current ratio is also very much stable and presents the fact that the company is utilizing its resources prudently. We have been appointed as the statutory auditor of the company, for the financial year ended March 31, 2012, in order to express an opinion whether the financial statement of the company are free from any misstatement and represent a true and fair view of the affairs of the company. By analyzing the financial performance of the company in the prior year, and considering the asset base, the company has been classified as SME (small and medium sized entity). The audit methodology, risk coverage and materiality have all been considered and devised which are relevant for the audit of a SME. The materiality has been calculated by averaging out the profit of the current year and prior year and applying a haircut of 5% which is suitable for SMEs. After the completion of the interim audit, no such event was identified which could question that the financial statements of the company are materially misstated. ... Due to uncontrollable circumstances, appropriate test of details could not be performed on the closing stock balance, whereas, the result of the test of details on debtor balance has also highlighted few grey areas. Certain discrepancy has also been observed in the carrying value of the non-current assets. Stocks The period from December to May is the busy season, during which our limited number of staff tries to cater a diverse and complex array of client, it becomes difficult sometimes to provide sufficient number of individual in an audit team to carry out the audit as planned. Due to the mentioned issue, the stock count of Perfect Pies Limited at its Wolverhampton site could not be performed. Audit procedure in such situation was only curtailed to management’s enquiry and placing reliance on the client provided schedule. During the visit to the Wolverhampton site, the audit team acquired the detailed report of the stock from the stock keeper and reconciled the total balanc e as of the report with the carrying value of the stock as reported in the financial statement. The previously mentioned audit procedure is quite successful to acquire comfort over the completeness and valuation of the stock balance. As per the applicable financial reporting framework, stock balance is valued at the lower of cost or net realizable value. Without actually assessing the physical condition of the stock it is not possible to identify he stock item over which the NRV testing should be performed. There’s also a chance that the stock item mentioned in the stock list might not be present at all, thus it is important to count the stock as either ‘tag to floor’ or ‘floor to tag’. Since all of the above procedure could

Business plan (entrepreneurship) Thesis Example | Topics and Well Written Essays - 5000 words

Business plan (entrepreneurship) - Thesis Example GetLaunched! offers the following propositions to its users: 1. Seamless and uncomplicated participation, with most of the technical aspects, such as compliance, ironed out by the company; 2. All-or-nothing scheme where collected money is returned to supporters if the proposal fails to achieve its goal within the given time; 3. No hidden or initial fees as the company implements a flat rate fee only on successful proposals; 4. By special arrangement, the company has access to the proponent’s account for 5 years for the sole of purpose of taking out and delivering the shares of profits of supporters, which are given in proportion to the latter’s investment. 5. Sharing of profits with supporters will be limited to 5 years and structured in such a way as not to unduly burden the proponent because the spirit of crowdfunding is not strict investment but more towards philanthropy. The Opportunity There are more than 2 billion internet users, which can be harnessed to realize the aims and goals of GetLaunched!. According to statistics, internet users number 2,095, 006,005 in 2011 up by about 480.4% from the 360,985,482 users in 2000. Facebook alone has more than 500,000 million users as of 2011 statistics. There is in every person a need for charity because it gives them self-actualization. Fundraising expert and author of â€Å"Grassroots Fundraising† Kim Klein states that every person has an urge to give because it makes them feel powerful and good-like and not merely an onlooker. GetLaunched! will tap into this need and use it to turn somebody’s life around. The gap between economic classes is widening and people on the lower social strata are getting more and more marginalized. The gap between social classes are growing bigger and bigger, and there is a need to try to level the playing field, and crowdfunding is one of the more acceptable means. Business Concept Online crowdfunding is getting popular in social networking sites, but at p resent there are only a handful operating. GetLaunched! is capitalizing on the growing popularity of crowdfunding, not only as a business endeavor, but as a means of helping people from both sides of the spectrum: for proponents to realize their dreams of materializing their business dreams, and; for supporters to channel their inner philanthropic urges. Industry Overview Crowdfunding had its origin in 1997, when American fans raised $60,000, through internet campaign, so that the British Rock band Marillion could do a US tour. French filmmakers Guillaume Colboc and Benjamin Pommeraud used the same strategy in 2004 to fund a film, raising a total of $50,000 within three weeks over the internet. Their counterparts in America Spanner Films raised ?900,000 the same way to finance a documentary film about climate change. Fig. 1 The Crowdfunding Mechanism Today, several crowdfunding societies offer themselves as platforms to raise funds for various ends - to support talent in the arts, t o market original inventions, to initiate charitable events and start small businesses. The present market has still room to grow dramatically because of the millions of internet users, which are ready to invest or donate money for causes that they can emotionally connect to. Figure 1 illustrates how crowdfunding can snowball from a small close circle of family and friends to a number of supporters that can donate and/or investments the right amount needed to launch a project. Target Market GetLaunched! targets two types of users: the proponents, and; the

Love ----One National Organization to combat Terrorism & Crime---- Assignment

Love ----One National Organization to combat Terrorism & Crime---- - Assignment Example At present, the country is considering the establishment of a national police force that will assist in the fight against terrorism and crime. Terrorism and crime threatens numerous facets of America, including the overall national security and the state of the economy. It has evolved into an increasingly transnational nature, and with the expansion of the internet and more open borders, the country is under attack both internally and externally. Terrorism and crime compromise national security while subsequently weakening the economy. As the years go by, America has been concerned with the increasing interactions between criminals and international terrorists. These expanded links and networks pose a threat to the country and increase its vulnerability to attack by terrorist groups with both financial and criminal capabilities. As a result, the country is debating whether to or not to merge all law enforcement agencies into one police unit that will combat these attacks. The consolidation of various law enforcement agencies into one national police organization may seem like a good idea, but it is not. The proponents argue that a national police force will improve communication and eradicate the confusion that is in the three government police levels, hence creating joint efforts to combat terrorism. However, this is not the solution. Instead, it presents a number of problems that will need to be addressed. The United States is a federation of several self-governing states, each subordinate to the federal government but with the power to formulate and enforce its own laws. Federalism is the foundation of the American government system and the creation of a national police force will not only violate this system, but also prove to be cumbersome and unmanageable. Each law enforcement agency in the United States is different in terms of authority, rules of engagement, training and procedures.

Tesla Motors Inc. - Strategic Marketing Analysis and Marketing Essay

Tesla Motors Inc. - Strategic Marketing Analysis and Marketing Strategy - Essay Example In the end, the paper concludes the study. Developing effective marketing strategies is critical to companies. Marketing experts argue that customers are the best source of revenues for most businesses. Therefore, it is necessary to understand the customers and develop strategies aimed at making them happy. A good strategy will enable a company achieve competitive advantage in the market. This paper will discuss various marketing strategies and will assist in developing an efficient marketing strategy to enhance the success of Tesla Motors. Tesla Motors was formed in 2003 by JB Straubel, Martin Eberhard, Ian Wright, Elon Musk, and Mark Tarpenning in San Carlos, California (Karamitsios, 2013). It is an American company that deals with designing electric vehicles. From their financial results, Tesla Motors is a global enterprise and is considered to be very successful (Karamitsios, 2013). Their strategies, especially technological strategies have enabled the company gain a competitive advantage. Apart from technological strategies, the company has embraced the best global branding and market adoption. Despite their success, there is a need for further research in strategic management and marketing. The paper will assist Tesla Motors in creating an effective marketing strategy to enhance its success (Chen, 2008). Tesla Motors is a worldwide enterprise. The firm deals with the design and manufacture of electric powered vehicles. Its management is focused in innovation, and it is the only car designer that manufactures zero-emission sports car. They have the best technological strategies and currently it plans to expand its production of luxury vehicles with the use of the latest technology (Karakaya, 2011). Experts argue that Tesla Motors follows the business model of Apple Computers. They base their argument on the fact that Tesla Motors uses the strategy of selling eco-friendly products. Conversely, Tesla Motors

The African American experience in colonial and antebellum North Term Paper

The African American experience in colonial and antebellum North America - Term Paper Example Food was scarce and even opted to eat corpses. Mostly, slaves came from Africa, the Caribbean and South America and by 1619; there were more than a million slaves in Virginia (Zinn 4). The whites and the Indians practiced their culture while the Africans were humiliated, and their culture was deemed to be inferior. Ironically, the African civilization was at par to that of Europe in terms of technology. Since slaves were treated harshly, they started rebellions that were crushed mercilessly. We are told that even some of the offenders were burnt alive and some hanged (Zinn 8). Later on, the black slaves and white servants started colluding to cause mayhem but those caught were equally punished. Racial discrimination is evident in this article because whites were considered superior to blacks hence given privileges like ownership of weapons and enough food. During this time, slaves also started demanding for their freedom (Zinn 12). The antebellum period was a time of slavery in North America whereby discriminatory laws were in place. Despite the existence of this laws, the African Americans were allowed to participate in societal duties. The black men were allowed to enlist themselves into the army that fought the 1812 American revolutionary war. In relation to these laws, Englishmen were not allowed to marry a Negro woman. However, if by chance an Englishman committed fornication with a Negro man or woman, he was fined (Bacon 42). On the other hand, non-Christians who were brought to the United States by land or sea and were not considered free (Bacon 42). IN this era, nobody was allowed to buy anything from a slave. Any woman who was a slave and conceived a child while serving her master was fined thousand pounds of tobacco. The child father was required to provide security to the church wardens of the parish where the child shall be taken care of and any complaints from the wardens reported to the

Rip Van Winkle by Washington Irving Essay Example | Topics and Well Written Essays - 250 words

Rip Van Winkle by Washington Irving - Essay Example The love, affection, and warmth for Rip Van Winkle would not be limited to humans. Even the dogs recognized him and would not bark to see him. Rip Van Winkle is known to others as an extremely useful man who can extend his hand of help in any kind of work needed. This is understandably, the main reason why so many people love him since Rip keeps proving his friendship again and again with different people; â€Å"a friend in need is a friend indeed† (â€Å"Cultural Dictionary†). Indeed, the same friendship becomes the cause of the twist in the story, when one day, while helping the Dutch strangers carry the keg up the mountain, Rip happens to drink a bit and then goes on to sleep for almost two decades. When he wakes up, he finds that his wife is dead. In a way, Rip’s habit of being â€Å"the friend in need† (â€Å"Cultural Dictionary†) rids him from all sorts of tensions and depressions in life so that he can have a wonderful and peaceful time sleeping, where he does not have to get berated by his wife everyday, or think, â€Å"what excuse shall I make to Dame Van Winkle?† (Irving

Computer Sciences Course Essay Example | Topics and Well Written Essays - 3000 words

Computer Sciences Course - Essay Example It also reflects on the degree at which I feel that I have realised my expectations so far as well as the fears and expectations I have for levels 5, 6, and beyond. Finally, the report highlights the action plan that I have set to see to it that I am highly employable in future. PART 1: Critical Reflection on the Modules Semester 1 Modules Website development This module brought into perspective the foundation of web applications development using HTML and CSS. The key purpose of HTML (hypertext mark-up language) is to define the structure of a document and this structure can comprise of blocks of text formatted in paragraphs, tables, links, lists etc. However, the structuring of HTML document, or the way the HTML document should look like, is determined merely on the browser. Apparently, it has become common knowledge that even the different versions of a browser tend to display HTML differently. Main advantages of HTML include: ease of use, it is free, is supported by majority of b rowsers and is easy to learn and code for novices. On the other hand, it offers limited security features and cannot work on its own. With the introduction of CSS (Cascading Style Sheets), the plain HTML pages can now adopt different styles in terms of character spacing, background colors, padding, font size etc. The main advantage of CSS is that it makes web pages presentable and beautiful. However, it may be difficult to learn bearing in mind there is no other language like it. I acquired vast knowledge on HTML and CSS mainly from class lectures and exercises, from friends, and video tutorials on YouTube. Interdiction database This module introduced database design and implementation using Oracle. Oracle SQL is a language for managing data stored in a relational database management system (RDBMS). Advantages of Oracle include: It has a centralized management and control. Database administrator adds records, modifies existing data, deletes redundant or unwanted data, creates users, and assigns them different privileges all from a central tabulated repository. It is standardized and therefore has consistency in implementation Some key disadvantages of the Oracle SQL include: It is complex and has data incompatibility in time and date syntax, case sensitivity, and string concatenation It does not implement recursive processing according to Zeiss et al (2009). It also has limited functionality. It is a domain specific technology, limited to the tabular representation of data. System modelling This module brought into perspective the ideas behind information systems. Information systems in the term used to mean the interaction between people in an organisation, data, processes and technology. The key concepts as far as information systems are concerned are people in the organisation, computers or workstations, instructions, stored facts and procedures. An organization uses an information system to engage its personnel and the computers into working on the availab le resources to meet the desired goals of the organization. As such, there are different types of information

The Human Perception of Loudness Essay Example for Free

The Human Perception of Loudness Essay Aim: The aim of the experiment was to discover the difference between loudness and sound pressure level, gain knowledge of typical sound level values in common environments and to be able to make rough estimations of what sound level measurements could be in different places. Method: The CEL-440 sound level meter was used to measure sound pressure levels in dbz and loudness levels in dBA. It was decided to base the experiment on learning environments around the university, ranging from areas of study inside and outside. This was done because, as the areas that are considered in the experiement are ones that the group would use in everyday life so it would be interesting to see what loudness and sound pressure levels most people live and sit in during there every day lives. Loudness is a psychological quality which relies on human interpretation. Loudness is hard to measure as it depends on how the human ear responds to it. Sound Pressure Level is linked to loudness as it is a physical quantity which can be measured. Sound Pressure Level can be measured, when loudness cannot. Sound pressure level ranges from the smallest detectable sound which is measured in pa (pascals). Sound is heard, by air follicles vibrating on the ear. The highest sound is atmospheric pressure around 1,000,000pa that can not physically be heard. If it was any louder then there would not be any atmospheric pressure left so everything would be destroyed. Threshold of human aural perception is the pressure of the air molecules colliding with the ear drum which is close to the threshold of perception. Young people with sensitive hearing are able to hear as little as 20pa, but most people will not be able to hear this measurement. The just noticeable difference depends on factors such as overall levels and frequencies. However, it is conveniently remembered as 1dB, one decibel. When something is measured in decibels it is refering to ratio (10log power difference, 20 log voltage difference) between the amount of two levels and the level being measured. How do people hear sound? When a sound is made, it is dependant on the response of the human ear and every ear responds in a different manner. Everybody has a different individual shape to their ear. The ear canals are unique to every individual, and ear canals resonances occur at approximately 3.4khz and 13khz, but this depends on age and health. There is no accurate way of measuring sound as everybody interprets is differently. The diagram below shows the basic structure of the ear and where the ear canal is situated. Fletcher and Munson Experience 1993 was the breakthrough of an investigation that explains a great deal. They investigated the perception of loudness in human subjects. The loudness level estimated by the subject for different stimulus levels and different frequencies was recorded. Humans have a limited range of hearing whereas dogs can hear things much louder. Fletcher and Munson discovered a graph of equal loudness contours. Shown below. When the ear hears sound it is not equally sensitive to all frequencies, especially the low and high frequency ranges. Fletcher and Munson charted the response to frequencies over the entire audio range and this is shown in the graph above. The set of curves show the sound pressure level of pure tones that are percieved as being equally loud. The graph has been plotted for each 10 decibel rise in level when the reference tone is 1kHz. This is also referred to as loudness level contours. From 1 to 5kHz the curves are lowest in the range. There is a slight dip at 4kHz which probably indicates that the ear is most sensitive to frequencies in this particular range. The levels of intensity for higher and lower tones had to be raised in order to create the equal impression of loudness. The results were accurate to the predictions made for the different locations. The sound pressure level in the places such as the computer labs and lecture theatres were thought to be quieter. However there were many computers and equipment which were left on standby, appearing off and very quiet. It was thought that the the library upstairs should have been quieter than downstairs as it is where books are kept and downstairs is where groups congrigate. Although it seems fairly quiet in the upstairs section, the air conditioning fitted can effect the sound pressure level recorded. The recording booths and live room were exactly as predicted which is very good as it means they have been built correctly and are one hundred percent sound proof. The relationship between the dBa results that were collected and the dBz were more or less as expected. The measurements that stood out were the library upstairs as the sound pressure level was much higher than the loudness along with the Lecture room. The lecture room was empty until it was entered by the group and there were no lights on either. The lights turned on automatically when people entered. It was thought that in both the library and the lecture theatre there are a lot of frequencies that exist but cannot physically be heard. This would include certain machinary such as air conditioning, automated light response system, fans from computers that seem very quiet, anything that is left on standby which appears off. Loudness is a subjective quality in which is depends a huge amount on sound pressure level as well as the frequency spectrum and amplitude envelope of sound. It also depends on the environmental conditions under which it is heard and the auditory of the listener.

History and Properties of Rubber

History and Properties of Rubber History of Rubber Rubber was first discovered by the Indians living in Central and South America at around 1000 CE. The native people of the Americas used latex from the rubber trees (which they called it the cahuchu tree) and learned how to make waterproof clothes and footwears.1 They also used the latex to make bouncing balls for ball games.1 In 1736, a French explorer named Charles Marie de La Condamine travelled to Ecuador and discovered the Hevea tree (which is known as the rubber tree), he was the first European to have discovered rubber. He sent samples of this rubber to the French Academy of Sciences, this prompted their interest of rubber.2 Figure 1: Latex liquid collected from the Hevea rubber tree 3 In 1770, English engineer named Edward Nairne created several rubber cubes and discovered that they had erasing properties. This meant that they can be able to erase pencil marks, this was later confirmed by English scientist named Joseph Priestley.4 In 1768, a French Chemist named Pierre Macquer studied the properties of the rubber found in South America. He found that when rubber is dissolved in ether, flexible tubes can be produced 5, this has led to rubber being an important material to many everyday applications. In 1791, a British shoemaker named Samuel Peal developed a method for waterproofing cloth, this was done by mixing turpentine (which is an oiled that is attained by the distillation of resin from pine trees) with rubber.6 In 1818, a Scottish surgeon named James Syme manufactured raincoats from waterproof cloth made from rubber.7 This was then later developed by Scottish chemist named Charles Macintosh. In 1823, he developed a method of making better waterproof raincoats by dissolving rubber with naphtha (which is an oil attained by the distillation of coal tar) and then placing it with another cloth (in order to improve the thickness of the coat). The waterproof coat became known as the Mackintosh coat.8 Figure 2: The Mackintosh Coat 9 In 1832, the first rubber factory was built, it was known as the Rosburg factory. Regrettably, when the rubber products made from the factory were left in the cold, it made them brittle, and when they were left in the sun the rubber melted, leaving customers to be discouraged.8 For many years, scientists have tried to develop new methods of increasing the strength of rubbers without being successful. However, in 1839, an American chemist named Charles Goodyear had accidently discovered a new way of making rubbers more durable. What he done was he accidentally dropped some mixture of natural rubber and sulphur on a hot stove, this has led to the vulcanization of the rubber. 8 In 1845, a Scottish inventor named Robert William Thompson invented the pneumatic tyre, this consisted of an inner belt made from natural rubber that was inflated with air, this was a major development to the motor industry because heavy steam engines could be able to travel on the roads without damaging the surface, this was further developed in 1869 where solid and hollow rubber were used to make the tyres. In the 1850s, rubber toys were being produced. 8 In 1876, an English explorer named Henry Wickham smuggled several seeds from the Hevea brasiliensis (which is the rubber tree found in Brazil) and took it to England. The English exported these seeds around the world, this has led to the increase in the supply of natural rubber around the world. 10 In 1883, an American chemist named George Oenslager developed a new method of accelerating the vulcanization of natural rubber with sulphur.7 He converted aniline into thiocarbanilide because it was easier to handle. From several experiments he conducted, he found out that thiocarbanilide was a good rubber accelerator for the vulcanization process. He was the first person to use carbon black as a filler for the rubber because it increased the strength of the rubber. 11 In 1909, a German scientist named Fritz Hofmann and his fellow scientists produced the first synthetic rubber known as methyl isoprene however the problem with this rubber is that it was expensive to make.12 In 1930, an American scientist named Wallace Carothers and his team produced a compound called chloropropene which then polymerised to form a solid which had a rubbery texture. The team had found out that the properties of this new polymer was similar to that of natural rubber. This polymer was named as Neoprene and was the first commercially successful synthetic rubber.13 Also in the 1930s, a German chemist named Walter bock had developed a new synthetic rubber which had better properties than that of natural rubber. He first tried to copolymerise dimethyl butadiene with isoprene and butadiene, this was successful as the new polymer had similar properties to the natural rubber. He then replaced dimethyl butadiene with styrene and copolymerised with butadiene, the polymer was named as SBR (styrene-butadiene rubber). This polymer was better than natural rubber because it did not wear out quicker than its counterpart, the polymer was later known as Buna-S for commercial purposes. 14 A better synthetic rubber was later developed by copolymerising acrylonitrile with butadiene, the polymer was known as NBR (Nitrile-butadiene rubber), it was the later known as Buna-N for commercial purposes. In 1940, an American inventor named Waldon Semon produced a new synthetic rubber known as Ameripol, this was made by copolymerising butadiene with methyl methacrylate. This synthetic rubber was cheap and easy to make, so it was a no-brainer that it was used in World War 2, and helped out rubber companies such as the Goodyear Tyre and Rubber Company during the war. After the war, the need for natural rubber died down, and the need for synthetic rubbers increased dramatically.15 In the 1960s, EPDM (which is known as Ethylene propylene Terpolymer Rubber) was produced. The rubber is made by copolymerising by a diene derivative, ethylene and propylene. The rubber has many advantageous properties over the synthetic rubbers, one of them is that they have good electrical insulating properties. EPDM rubber are now found in our everyday life such as hose, solar panels, electrical insulation etc.16 The use of synthetic rubber is on a steep rise, and many new rubber materials have been made duri ng the 21st Century. Natural Rubber How it is made? Natural rubber is produced by biosynthetic processes (in the form of latex which is a white liquid that is found when you cut the plant up) in many plants, but mainly from the Hevea Brasiliensis (The rubber tree coming from Brazil). There are two biosynthetic process to make latex. In the first stage, Acetyl-coenzyme A is converted to melavanic acid which then is then converted to iso-pentyl-pyrophosphate. The second process is the polymerisation induced by the first stage of the biosynthesis, from this process latex is created. The rubber form of the latex is then form by coagulating the latex particles. The rubber is made from a polymerisation of naturally occurring cis-polyisoprene. 17 Figure 3:Cis-polyisoprene, natural rubber 18 Properties of Raw Natural Rubber The rubber has a clear colour and hasnt got a well-defined shape and it is soft and sticky, however when the rubber is cooled down it crystalizes, so has a well-defined shape. The rubber has a low tensile strength meaning it tends to break if a low amount of tensile stress is put into it. It has a low abrasion resistance meaning the rubber will wear out quickly. It is soluble to organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). It is insoluble to hydrophilic solvents such as water, acetone, and alcohol. The rubber has a high elastic property, this means that when the rubber is stretched out it gets bigger, but when it is released the rubber goes back into its original shape. The rubber can only be elastic between 10 0C to 60 0C, this means under hot conditions the rubber would lose its elasticity. Another pro perty of the natural rubber is that it absorbs a large amount of water this means that it will be always wet and would need to dry it out before the next stage of the process. 19 Advantage of Raw Natural Rubber The hardness of the rubber can easily be adjusted, so can be able to shape or coat any form of objects this is because the rubber has a high elastic property, this means that when the rubber is stretched out it gets bigger, but when it is released the rubber goes back into its original shape. It can be used as an electrical conductor or an electrical insulator. Can be able to absorb vibration and noise. It is insoluble to hydrophilic solvents such as water, acetone, and alcohol. It also has a good surface friction so does not slide about easily. Disadvantage of Raw Natural Rubber The rubber can only be elastic between 10 0C to 60 0C, this means under hot conditions the rubber would lose its elasticity. The rubber has a low tensile strength meaning it tends to break if a low amount of tensile stress is put into it. It has a low abrasion resistance meaning the rubber will wear out quickly. It has a poor resistance to any organic compounds this is because It is soluble to organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). Another disadvantage of natural rubber is that it has a poor resistance to ozone meaning that when the ozone reacts with the double bonds it breaks, this causes a crack.20 The crack then grows steadily because of further ozone attacks so this causes the strength of the rubber to decrease massively and cause it to break. Another disadvantage of natural rubber is it has a poor UV resistance this also means that when it reacts with the double bond it breaks; this also means that cracks will from causing the tensile strength to be severely reduced meaning the strength of the rubber would be reduced massively and causing it to break. 20 Another disadvantage is that vulcanization of the rubber can occur spontaneously, so it is hard to control the raw state of the natural rubber. The vulcanization of Natural Rubber To improve the properties of the natural rubber, the process of vulcanisation is used to do this. Vulcanization is a process that involves adding natural rubber to a curing agent such as sulphur. The process is done under heat, so by heating the rubber in the presence of the curing agent the physical and chemical properties of the rubber would be significantly improved. The reason it does is, because when heating the rubber in the presence of the curing agent, the polymer chains are cross-linked by the agent, therefore the free-flowing macromolecules of the polymer chains becomes more rigid.21 Vulcanization must be under controlled condition to avoid creating a massive amount of cross-linking, this means that it will avoid making the rubber less elastic and more brittle. Figure 4: Cis-polyisoprene with sulphur cross-links after vulcanization 23 Properties of Vulcanised Rubber The rubber has a clear colour and it is hard and not sticky, when the rubber is cooled down it crystalizes, so has a well-defined shape. The rubber has a high tensile strength meaning it does not tend to break if a low amount of tensile stress is put into it. It has a high abrasion resistance meaning the rubber will not wear out quickly. It is not soluble to organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). It is insoluble to hydrophilic solvents such as water, acetone, and alcohol. The rubber has a high elastic property, this means that when the rubber is stretched out it gets bigger, but when it is released the rubber goes back into its original shape. The rubber can only be elastic between -40 0C to 100 0C which is better than what the given temperature range is for the natural rubber in its raw state, thi s means under hot conditions the rubber would not lose its elasticity. Another property of the natural rubber is that it does not absorb a large amount of water this means it can be dried easily before the next stage of the process. 23 Advantages of Vulcanised Rubber The hardness of the rubber can easily be adjusted, so can be able to shape or coat any form of objects this is because the rubber has a high elastic property, this means that when the rubber is stretched out it gets bigger, but when it is released the rubber goes back into its original shape. It can be used as an electrical conductor or an electrical insulator. Can be able to absorb vibration and noise. It is insoluble to hydrophilic solvents such as water, acetone, and alcohol. It is also insoluble to organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). It also has a good surface friction so does not slide about easily. The rubber has a high tensile strength meaning it does not tend to break if a low amount of tensile stress is put into it. It has a high abrasion resistance meaning the rubber will not wear out quickly. The rubber can only be elastic between -40 0C to 100 0C which is better than what the given temperature range is for the natural rubber in its raw state, this means under hot conditions the rubber would not lose its elasticity. Another advantage of the vulcanized rubber is that it does not absorb a large amount of water this means it can be dried easily before the next stage of the process. It has a better resistance to ozone and UV this means that less cracks form than in its raw state. This means that it is less likely to break than the raw natural rubber. Disadvantages of Vulcanised Rubber If the vulcanized rubber is burned it can be toxic for the workers and consumers this is because it contains sulphur cross-links which can form sulphur dioxide. Vulcanization must be under controlled condition to avoid creating a massive amount of cross-linking, this means that it will avoid making the rubber less elastic and more brittle. Another disadvantage of vulcanized rubber, is that when you heat the rubber it melts and then cools quickly, this is quite dangerous for the people who are handling it. Another disadvantage of using vulcanized rubber, is natural rubber are becoming more scarce, therefore the cost of making the vulcanized rubber is increasing. To overcome this problem, scientist have been trying to make vulcanized rubber out of synthetic rubbers such as styrene-butadiene rubbers (SBR), however the problem with this is that it is not cost effect and it is very expensive to make.24 Applications of Natural Rubber and Vulcanized Rubber The main usage of natural rubber is in the motor industry. It is used to make tyres and tubes in vehicles this is because it decreases any generation of heat in the tyres. It also offers high mechanical resistance. Tyres and tubes are used mainly in heavy duty vehicles such as trucks and tractors. 23 Natural rubbers can be used to make toys, footwear, balloons, glue and condoms. Another important application of natural rubbers is that they can be used to make latex gloves. Latex gloves are used in many industries such as the medical industry, chemical industry, and engineering industry, this is because due to the chemical and physical properties of the natural rubber mentioned above it can protect workers and consumers hands from hazardous chemicals.25 There are several applications for the vulcanized rubber. Vulcanized rubbers are much better to produce tyres than natural rubber this is due to having high abrasion resistance meaning tyres wont wear out quickly. The rubber is flexible, this means that it can be used to make hoses, tubes, coats etc Shock absorbers in vehicles are made from vulcanized rubbers due to being able to absorb vibrations easily.26 As the rubber, does not dissolve in water, it can be used to make waterproof clothing and footwears. Another application of using vulcanized rubber is that they can be used to produce cables for telephone housing, and can be able to produce insulations and conductors for electrical instruments. The reason why they are used in electrical instruments, is that have good electrical insulating and conducting properties. Synthetic Rubbers Synthetic Rubbers are made by copolymerising two different monomers under certain conditions. There are 3 conditions (the mixture can be in) it can be done in such as: emulsion, suspension and solution. There are 9 major classes of synthetic rubbers: Styrene-butadiene rubber (SBR), Poly(Butadiene-acrylonitrile) rubbers (NBR), Butyl Rubbers (IIR), Polychloroprene (CR), Ethylene-propylene rubbers (EPDM), Urethane rubbers (EU), Silicone rubbers (VMQ), Fluoroelestomer (FKM), Flurosilicone (FVMQ).27 In this 4 major classes are being discussed. Polychloroprene In 1930, an American scientist named Wallace Carothers and his team produced a compound called chloropropene which then polymerised to form a solid which had a rubbery texture. The team had found out that the properties of this new polymer was similar to that of natural rubber. This polymer was named as Neoprene and was the first commercially successful synthetic rubber.13 Neoprene is produced by the free-radical polymerisation of chloroprene. The chloroprene undergoes polymerisation under aqueous emulsion.28 Properties of Polychloroprene The rubber has a greyish green colour.28 The rubber has a high tensile strength meaning it does not tend to break if a low amount of tensile stress is put into it. It has a high abrasion resistance meaning the rubber will not wear out quickly. It can dissolve with organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). It is insoluble to hydrophilic solvents such as water, acetone, and alcohol. The rubber has a moderate elastic property, this means that when the rubber is stretched out it gets bigger, but when it is released the rubber goes back into its original shape. The rubber can only be elastic between -34 0C to 100 0C which is better than what the given temperature range is for the natural rubber, this means under hot conditions the rubber would not lose its elasticity. The rubber has a low flammability, and has a high resistance to weather and ozone.29 Figure 5: Polychloroprene 30 Advantages of Polychloroprene This rubber is tougher than natural rubber because it has a higher tensile strength than natural rubber meaning it does not tend to break if a low amount of tensile stress is put into it. It has a very high resistance to hot conditions and other weather conditions; this means that it does not melt or break easily. Another advantage of polychloroprene rubber is that they have a better resistance to ozone and UV this means that less cracks forms than in its natural counterpart. This means that it is less likely to break than the natural rubber. It has a low flammability and can be able to self-extinguish if it is on fire. The structure of the polychloroprene can be altered to create a new compound which can exhibit different chemical and physical properties. Disadvantages of Polychloroprene The rubber has a poor resistance to aromatic compounds such as benzene derivatives, they also have poor resistance to carbonyl compounds such as ketones and esters, and, also has a poor resistance to strong oxidising agents. Another disadvantage of polychloroprene, is that they are quite expensive to produce. 29 Typical applications of Polychloroprene Production of hoses Making belts Making cable covers for electrical instruments Styrene-butadiene Rubber In the 1930s, a German chemist named Walter bock had developed a new synthetic rubber which had better properties than that of natural rubber. He first tried to copolymerise dimethyl butadiene with isoprene and butadiene, this was successful as the new polymer had similar properties to the natural rubber. He then replaced dimethyl butadiene with styrene and copolymerised with butadiene, the polymer was named as SBR (styrene-butadiene rubber).14 Styrene-butadiene Rubber is produced by the free-radical polymerisation of styrene mixed with butadiene. The monomers undergo free- radical polymerisation under aqueous emulsion. The monomers can also undergo polymerisation in the form of solution.31 Properties of Styrene-butadiene Rubber The rubber has a brown -black colour. 31 The rubber has a high tensile strength meaning it does not tend to break if a low amount of tensile stress is put into it. It has a high abrasion resistance meaning the rubber will not wear out quickly. It can dissolve with organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). It is soluble to hydrophilic solvents such as water, acetone, and alcohol. The rubber has a moderate elastic property, this means that when the rubber is stretched out it gets bigger, but when it is released the rubber goes back into its original shape. The rubber can only be elastic between -45 0C to 100 0C which is better than what the given temperature range is for the Polychloroprene, this means under hot conditions the rubber would not lose its elasticity. 29 Figure 6: Styrene-butadiene rubber 32 Advantages of Styrene-butadiene Rubber This rubber is tougher than natural rubber because it has a higher tensile strength than natural rubber meaning it does not tend to break if a low amount of tensile stress is put into it. It has a high abrasion resistance meaning the rubber will not wear out quickly. Another advantage of styrene-butadiene rubber is that it is much more cost effective than natural rubber, and the production of the rubber is much more efficient than its natural counterpart. Disadvantages of Styrene-butadiene Rubber It has a poor resistance to any organic compounds this is because It is soluble to organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). Another disadvantage of natural rubber is that it has a poor resistance to ozone meaning that when the ozone reacts with the double bonds it breaks, this causes a crack. The crack then grows steadily because of further ozone attacks so this causes the strength of the rubber to decrease massively and cause it to break. Fillers like carbon black are needed to strengthen the rubber. Typical applications of Styrene-butadiene Rubber Production of car tyres Making mats Making shoe soles Poly(Butadiene-acrylonitrile) rubbers In 1931, scientists IG Farben developed a synthetic rubber which consisted of copolymerising acrylonitrile with butadiene, the polymer was known as NBR (Nitrile-butadiene rubber), it was the later known as Buna-N for commercial purposes. 14 Styrene-butadiene Rubber is produced by the free-radical polymerisation of styrene mixed with butadiene. The monomers undergo free- radical polymerisation under aqueous emulsion.14 Properties of Poly(Butadiene-acrylonitrile) rubbers The rubber has a yellowish colour.33 It has a high abrasion resistance meaning the rubber will not wear out quickly. It is insoluble with organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). It is insoluble to hydrophilic solvents such as water, acetone, and alcohol. The rubber has a good elastic property, this means that when the rubber is stretched out it gets bigger, but when it is released the rubber goes back into its original shape. The rubber can only be elastic between -34 0C to 121 0C which is better than what the given temperature range is for the Polychloroprene, this means under hot conditions the rubber would not lose its elasticity. However, at low temperature, the rubber loses its elasticity.29 Figure 7: Poly(Butadiene-acrylonitrile)34 Advantages of Poly(Butadiene-acrylonitrile) rubbers It has a very high resistance to hot conditions and other weather conditions; this means that it does not melt or break easily. Another advantage of Poly(Butadiene-acrylonitrile) rubber is that they have a better resistance to ozone and UV this means that less cracks forms than in its natural counterpart. This means that it is less likely to break than the natural rubber. It has a high abrasion resistance meaning the rubber will not wear out quickly. Another advantage of Poly(Butadiene-acrylonitrile) rubber is that it has a high resistance in oil this is because It is insoluble with organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). 29 Disadvantages of Poly(Butadiene-acrylonitrile) rubbers At low temperature, the rubber loses its elasticity. Another disadvantage of Poly(Butadiene-acrylonitrile) rubbers, is that they have poor resistance to carbonyl compounds such as ketones and esters, and, also has a poor resistance to strong oxidising agents. 29 Typical applications of Poly(Butadiene-acrylonitrile) rubbers Making nitrile gloves Can be used for O-rings Can be used to make hoses and tubing Ethylene propylene Terpolymer Rubber In the 1960s, EPDM (which is known as Ethylene propylene Terpolymer Rubber) was produced. The rubber is made by copolymerising by a diene derivative, ethylene and propylene. The rubber has many advantageous properties over the synthetic rubbers, one of them is that they have good electrical insulating properties. EPDM rubber are now found in our everyday life such as hose, solar panels, electrical insulation etc. 16 Ethylene propylene Terpolymer Rubber is produced by the copolymerisation of ethylene, propylene and a diene derivative. The monomers under copolymerisation in the form of solution. Figure 8: EPDM 35 Properties of Ethylene propylene Terpolymer Rubber The rubber has a yellowish colour. It has a high abrasion resistance meaning the rubber will not wear out quickly. It is insoluble with organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar). It is insoluble to hydrophilic solvents such as water, acetone, and alcohol. The rubber has a good elastic property, this means that when the rubber is stretched out it gets bigger, but when it is released the rubber goes back into its original shape. The rubber can only be elastic between -40 0C to 149 0C which is better than what the given temperature range is for the Poly(Butadiene-acrylonitrile) rubber, this means under hot conditions the rubber would not lose its elasticity. 29 Advantages of Ethylene propylene Terpolymer Rubber It has a very high resistance to hot conditions and other weather conditions; this means that it does not melt or break easily so does not age very easily. Another advantage of Ethylene propylene Terpolymer rubber is that they have a better resistance to ozone and UV this means that less cracks forms than in its natural counterpart. This means that it is less likely to break than the natural rubber. It has a high abrasion resistance meaning the rubber will not wear out quickly. The rubber is very cost effective, so it is cheaper to make than the other rubber compounds. 29 Disadvantages of Ethylene propylene Terpolymer Rubber It has a poor resistance to oils, this is because It is insoluble with organic solvents such as turpentine (which is an oiled that is attained by the distillation of resin from pine trees), ether, petrol, carbon tetrachloride, and naphtha (which is an oil attained by the distillation of coal tar).29 Typical applications

Contemporary Cosmology and Philosophy and the Beginning of the Universe :: Natural Science

Contemporary Cosmology and Philosophy and the Beginning of the Universe ABSTRACT: Since the 1970s both in physics and cosmology, there has been a controversy on the subject of the ‘beginning of the universe.’ This indicates that this intriguing problem has reached scientific consideration and, perhaps, a solution. The aim of this paper is to try to answer the question as to whether the origin of the world has slipped out of the hands of philosophers (and theologians), and passed in its entirety into the realm of science, and whether science is able to solve this problem by itself. While presenting the main views in this dispute, I try to show also that metaphysics, philosophy of nature and epistemology provide important premises, proposals and methods that are indispensable for a solution. These premises concern such issues as the extremely subtle problem of the sense and existence of ‘nothing,’ the problem of extrapolation of local physics onto the large-scale areas of the universe, the epistemological status of cosmological pr inciples, as well as problems of the origins of the laws of nature. This last issue is entangled in the difficult problem of the ‘rationality of the world’ and the problem of overcoming the dichotomy of laws and preconditions, according to which the conditions and laws are independent of each other. I. Introduction One of the determinants of scientific rationality is the condition that science undertakes only those problems whose solution is within the range of possibilities of research methods which science currently applies or is able to apply. Simply speaking, scientists are attracted by solvable problems. If this is really so then the fact of widespread discussions since the 70s among physicists and cosmologists on the subject of "the beginnings of the Universe" seem to be an obvious sign that also this unusually intriguing problem has matured to its scientific solution. The purpose of my paper is to attempt to answer the question whether the problem of the origin of the world currently evades philosophers (and theologians) and passes completely to the realm of science (i.e. physics, astronomy and cosmology), or whether science by itself is not able to solve this problem. In the latter case one would have to acknowledge that metaphysics, the philosophy of nature and epistemology, provides important premisses, assumptions and methods indispensable for this solution. II. Two Approaches in Cosmology The task cosmology has to perform is to explain the structure of the Universe as it is observed.

Essay --

Unit 3 Questions Directions: Completely outline each prompt. This is a typed assignment. Fill in each box completely. If it says do one or two of the following do all. For thesis statement just choose one point. 10 points off for every day late. 1. Analyze the changes and continuities in the Arabic world’s acceptance of ONE of the following items between 700 and 1400. Be sure to discuss the causes of the changes as well as the reasons for the continuities. Arts Technology Sciences Thesis with road map: DO NOT just repeat the prompt. Throughout this time period there has been changes and continuities among the Arab population acceptance of art. Mosques remained a focus of art most likely because much of them were firmly rooted in Islam. Break down each point. You need at least three pieces of evidence for each. Stay within the time period Arts A variety of different art styles emerged in as appreciation of finer art became more wide spread Elements of architecture were dispersed such as roman arches Mosques continued to be built throughout the Islamic Golden Age Technology Gunpowder was introduced to the middle east and began to develop in battle Irrigation technology was improved which lead to better yields Improved medical procedures epitomized by the breakthrough of modern surgery Sciences Superior mathematics allowed for advanced astronomical accuracy Mathematical concepts such as geometry and algebra were developed Throughout the time the Arabic number system was used Global Connection A Global connection in the Arabic Empire between 1400 and 700 was the creation of madrassas or centers of learning. Muslims Jews and Christians all came together to learn there. The best example of a Madras that connected the ... ...tionship Treatment of minority/indigenous religions Thesis with road map: DO NOT just repeat the prompt. Break down each point. You need at least three pieces of evidence for each. Stay within the time period Degree adoption of Islam Sub-Saharan Africa accepted it greatly Europeans fought Islamic expansion Military conflict The Crusades brought Europeans to try to reclaim the Holy Land Mansa Musa expanded his Islamic empire in West Africa Economic relationship European kingdoms traded widely with Mansa Musa’s kingdom for gold, and salt Islamic world taxed European goods traveling through the Middle East Treatment of minority/indigenous religion European kingdoms were intolerant of Islam, Jews and internal â€Å"heresies† Mansa Musa permitted a wide range of religions and fostered study of other religions and cultures Global Connection Other helpful information

Computer Processors :: essays research papers fc

Processors: Which is the best ?   Ã‚  Ã‚  Ã‚  Ã‚  A processor is the chip inside a computer which carries out of the functions of the computer at various speeds. There are many processors on the market today. The two most well known companies that make processors are Intel and AMD. Intel produces the Pentium chip, with the most recent version of the Pentium chip being the Pentium 3. Intel also produces the Celeron processor (Intel processors). AMD produces the Athlon processor and the Duron processor (AMD presents).   Ã‚  Ã‚  Ã‚  Ã‚  Processor speeds are measured in megahertz (MHz) and now come in speeds of up to 1000 MHz (1 GHz), which is very fast. This is almost ten times faster than the speed of most home computers, which average from 133 MHz to 166 MHz. Intel and AMD have been in a race to break the 1 GHz speed barrier, and the number of megahertz in the newest processors is not as significant as it was in earlier processors. For example, the difference between a 133 MHz processor and a 166 MHz processor is rather large, but the difference between a 533 and a 566 is barely noticeable. This is because the companies are becoming more concerned about the number of megahertz in a processor that the actual speed is not keeping up with the megahertz number (AMD/Intel).   Ã‚  Ã‚  Ã‚  Ã‚  So, which processor is the best? It depends on what the computer is being used for. The AMD Athlon processor is the best processor when it comes to 3D games and handles games quite well (Athlon Processor Quotes). The Pentium 3 processor is not quite as good at handling games. From personal experience with a Celeron 566 processor, the Celeron does not do a very good job at handling 3D games and will often freeze during a game, but otherwise is a very good processor. The Pentium 3 is the best processor for handling office applications, but the Celeron and the AMD do a good job as well. In consideration of the price, the Celeron processor is the best priced processor and offers good performance (P3 vs. Celeron 2). The Celeron is about half the price of the Pentium 3 processor (P3 vs Celeron 2).

Han and Roman Dynasty View on Technology

After studying the provided documents (#1-8) its come to my understanding that both the Han and Roman empires thought of technology as useful and somewhat revolutionary, but both of them had somewhat different feelings of it. The Han dynasties attitude toward technology was that they thought it was very benefical, and they admired it. The reason this was because they though it to be very helpful in agriculture and construction purposes. Evidence of the positive effects of this can be seen in Document 4: History of the Early Han Dynasty which tells of a governer of Nanynay and as the very generous and loving person he was his policies also refelcted his personality. He had so much love for his people he wanted to lift weight of their shoulders and make their lives a little easier by inventing a water-powered blowing-engine which was enjoyed by eveyone adopted and spread his invention. The Roman empire however were not as positive about technology as the Hans. Even though they appreciated it to some extent the main viewpoint from the documents suggested that they thought of it was a bit demeaning also. Evidence can be found in Document 7, written by an upper-class Roman philospher and adviser which was saying that he did not believe that tools were created by â€Å"wise men† meaning a very developed mind, or someone who was thinking outside the box. He believe like the hammer for instance was created by a simple minded human, though its a very popular tool it was not advanced a tool as it could've been. Han and Romans both used technology for conservation and storage purposes of water in the environment. In Document 1 written by a Han goverment official. He wrote about the most efficent ways to ensure that flooding would be prevented. He thinks everyone should cooperate togther as a team, the high officals should patrol each side of the river and the common people should help in construction and repair. They welcome technology in this way because it will be saving the lives of people. In Document 8 written by a Roman general, governer of Britain, Frontinus, and water commissioner for city of Rome which basically brags about how great and sufficient their water system of distribution and compares it even to the great pyramids using the word ide meaning a waste of time, non functioning. By saying this you could imply how they looked down upon other structures that weren't their own, no matter how great. Saying that their construction is both useful and a marval and ts just something pretty to look at. The Roman empire and Han dynasty both needed technology to be able to help with their agricultural and structure building accuracy. In Document 6 written by Plutarch, Greek-born Roman citizen and high officals describe second-century B. C. E Roman political leader Gaius Gracchus, first century C. E. he is admired for his appliance[->0] of the condtion plan of the grace, beauty, detailed that he put into he design of the columns and the other monuments of Rome. In Document 3: New Discourses written by Hauan Tan an upper-class Han philopsher is saying how a mythological wise emperor Fuxi invented the pestle and mortar after it was imporved it thus notably increased the efficiency in China. These 2 documents show that technology was used profusely and was progressing. Document 2: written bu Huan Guan a han goverment offical, Discourses on Salt and Iron he describes how the salt and iron markets begin to manufacture backwards or useless tools. Previously these tools were quite excellent in quality but now that the state has monopolized the salt and iron trades most of the tools provided are hard to work with. This is a view by the Romans that demonsrtaes the more negative side of technlogy or how they were highly upset and unimpressed with the technology. In Document 5 written but Ciero and upper class political leader On Duty he finds that working in a workshop is not only degrading but he doesn't find it enlightening or in other words he thinks that it's useless. Ciero finds no use for technology, and that may be beacuse of his high placing in society he's not in touch with the world of craftsmen whatsoever so there is of course no use for it to him. Another example of a high class official having a negative view was in 7, like stated before Seneca believed that tools were useless he an adviser to Emperor Nero so that could be a reason why his views were different. The lower ranking people, or commoners can only use tools so that's why I believe that they were so grateful for the technology they were given ot provided with. The upper class people only use the finished poduct they don't know the importance of tools. The Roman and Han both found technoloy very useful and an everyday neccessary. Although the Han viewed the technology verey beneficial for their agriculture and praised the advanced tools and their inventors and well as their own work. The Romans only appreciated the product of technology and its design and craftmeship. Both civilizations technology was very imortant and helped to advance both that can still be seen in China today. [-;0] – /Dictionary/search? q=define+appliance=DTPDIA

Strategy on Tata Motors

The purchase of the Jaguar and Land Rover brands catapulted Tata into a different league, while also expanding its global footprint dramatically. Jaguar and Land Rover are highly sophisticated vehicles, well-engineered and superbly designed, selling to the upper middle-class motorists around the world. While Tata Motors has been running its UK subsidiary at an arm's length, it could eventually benefit from its engineering, design and marketing expertise. However, the benefits have not been yet spread to India, and Tata's range still relies on its pre-JLR cars.Prime among these is the world fs cheapest four-wheeler, the Nano urban subcompact. It was originally intended to sell for Rs1 lakh (Rs100,000), which at the time was equal to around US$2,000. The company had ambitious plans for the Nano, including exporting it to Western Europe and North America. In the event, the Nano ‘s price had to be increased, and it now starts at Rs1. 45 lakh with better-equipped and more sophistica ted models running up to twice that amount.Given the depreciation of the rupee over the past 18 months, the cheapest Nano can still be purchased for under US$2,400. At the time, it seemed that cheap vehicles were what India and other developing markets wanted. Some competitors scrambled to emulate the Nano, while prices of second-hand vehicles plunged. However, the strategy now seems to be a mistake. The car is still far more expensive than a motorcycle or a moped, while those who can afford a car are highly image-conscious. They don ‘t want to be seen in a car that is known to be the world ‘s cheapest – and looks the part.This problem has become more acute as India's car market has entered a period of stagnation, pushing down sales. So Tata is fine-tuning its Nano strategy. The new Nano will be more elegant, will have more desirable features and add-ons and will be given a higher price tag. Tata is planning to market it to a different group of motorists, includin g young urban professionals. A new group of highly educated, successful twenty-something has emerged in Indian cities, and they may find the Nano an attractive first vehicle.

Economic Instruments For Protecting The Environment Economics Essay

Economic instrument ‘s aim is to alter the behavior of environmental devastation by puting cost on the polluters while statute law ‘s aim is to alter the polluter ‘s behavior by puting Torahs or restricting some patterns. Traditionally, both authoritiess and concerns have preferred to utilize legislative instruments over economic instruments as environmental policy. It is because they think economic instruments is can non alter the behavior of polluter straight and certain sums of uncertainness are involved. From the position of authoritiess, they afraid rising prices may be caused by extra charges and the low-income group will be affected by the unsought distribution consequence. The populace may believe that companies can obtain the pollution right if they able to pay for the pollution charges. Similarly, from the position of concerns, they do non prefer to utilize economic instruments since the costs would be increased by the extra charges, and they have influence on statute law by dialogue. Charge is the most common manner under price-based step. A monetary value that polluters have to pay for what environmental pollution they have done can be considered as charge ( OECD, 1989 ) . Charges can be classified as user charges, merchandise charges and wastewater charges. To forestall resource maltreatment, users of resource should pay for user charges. To promote recycling or discourage disposal, the merchandise monetary value would be added by the merchandise charges. To forestall H2O pollution, wastewater charges would be used and the payments depend on constituents and measure of a company ‘s sewerage. Normally, authoritiess would maintain the wastewater charges at a low degree in order to forestall equivocation of charges by illegal dumping. There several statements about the effectivity of price-based steps and legislative steps on pollution control. Literature reviews about these statements is presented in the undermentioned paragraphs. The principle The environmental economic experts, such as Schelling ( 1983 ) , Pearce et Al. ( 1989 ) , Tietenberg ( 1990 ) and Ekins, P. ( 1999 ) outline a standard position in texts and articles. There are arguments that decrepitude of environmental is because of the system of market failed to add environmental value. Savage and Hart ( 1993, p. 3 ) indicated that most of economic sciences believe that â€Å" doing the polluters to obey on the mechanism of market is the most effectual ways to undertake with jobs of environment † : A monetary value should be placed to people who want to utilize environmental resources till to guarantee that the societal costs are non larger than the societal benefits. So there costs and benefits should be measured. In order to do the benefit and costs to be mensurable, the environment should be turned into marketable. Then there have a pollution rights markets, presenting subsidies or revenue enhancements as monetary values to reflect pollution cost to society and cost of pollution right quotas. ( Savage and Hart, 1993 ) Measures under market-based are similar to price-based step that puting a monetary value and finding demand on the sum of pollution discharged ( Schelling, 1983 ) : The disposition of economic experts to work outing the market jobs is an ideologically based one: their major basicss come from the perceptual experience of Adam Smith that self-interest universe ‘s single development, in a competitory market system and societal benefits are maximized. The economic sciences is entrenched by this tradition doctrine that most of economic experts probably do non recognize, except they go out into the non -economists ‘ universe, that it is a moral doctrine premise†¦ ( Kelman, 1983, p. 297 ) Although it is non persuaded by every economic expert, the attack of neoclassical which the environmental economic sciences ranges and surveies cover this doctrine ( Rosewarne, 1993 ) . In the world, given the markets workings and the imperfectness is well-elaborated and problems related to it ( Moran and Wright, 1991 ) what indicated that environmental economic sciences and statements of sustainable development issue are dominated by the neoclassical economic sciences. Internalizing costs of environmental Some resources of environmental – for illustration purchasing and merchandising environmental resources in the market though the true cost of acquiring the environmental resource ever does non indicated from their monetary values since the monetary values are non include the cost in the environmental devastation. Other resources of environment, for case, there are non paid at all in utilizing clean H2O and therefore economic experts viewed as free. There are arguments between economic experts that environmental assets are likely to be raddled or mistreated as the monetary values are excessively low. The statements between the economic sciences that external benefits and costs that market minutess are non considered as â€Å" internalized † by altering monetary values. The external cost which is caused by the company from supplying services or goods is apt to pay or this. Charges or revenue enhancement is a possible ways to work out this job ( Bailey, 2002 ) . For case, dumping the sewerage into the watercourse by the company, and so the cost of lost leisure environment is covered by bear downing a fee. Price-based instruments for illustration, charges and revenue enhancements, are theoretical to do external costs portion of the polluter ‘s consideration. Although jurisprudence besides can restrict the pollution discharge to the, the economic experts still prefer utilizing make-based for the pollution control. Advocated by economic instruments, Thomas Schelling ( 1983, p. thirteen ) , states Environmental Protection Incentives in his book that â€Å" if pricing mechanisms is designed good, it can acquire regulative criterions with good – designed and reasonable. † And all parties believe that legislative instruments can non be to the full replaced by economic instruments. Practically, the environmental policy should be a mix of market-based instruments, criterions and Torahs. The optimum pollution degree is theoretical to be the degree at cleaning cost equal the environmental harm cost ( Samuelson, 1954 ) . Some economic experts debate that making the optimum harm degree is the most efficient in market. Since optimum degree of harm or pollution is ever non zero, many people feel unusual and abhorrent. But the optimum degree is the cardinal premise of the theory of internalising costs under price-based instruments. If the environmental harm cost is equal to the monetary value charge, theoretically, the pollution will be cleaned up by the house until the residuary charge would be less than the incremental pollution decrease. It means that the degree of pollution decrease addition until the charge payment is less expensive than the pollution decrease. It is efficient economically since the benefits will be offset if more costs of excess pollution control are spent by polluter. To the society, it seems non an optimum solution. However, economic experts debate that the societal cost caused by polluters is non in the worst place if they had paid to all cost of pollution riddance and there is no worse to society sine the company counterbalance the harm by paying to the authorities. Theoretically, the companies ‘ payment in the charges form is a method to rectify their harm on the environment ( Beder, 1996 ) However, there are diverges between theory and world. The first consideration is whether the fortunes of environmental devastation can be corrected by enforcing monetary value on the polluters, world and theory diverge issues. The 2nd consideration is whether the pollution charges collected are used to undertake environmental jobs. Argument comes out that the society is still no worse – off if we spent the money on something every bit valuable. But this position is difficult to accept by the pollution suffer. The other statement is presuming that the replacing environmental benefit by purchasing other benefits on the market. Yet, countering by conservationists that other goods can non replace the environmental quality ( Goodin, 1992 ) and that human -made capital and natural can non replace absolutely ( Costanza and Folke, 1994 ) . Actually, the costs internalized assume that wage for the environmental devastation is most preferred to avoiding the devastation. There besides have a theory premise that the optimum harm point is that the cost of pollution decrease is more dearly-won and dearly-won while the environmental addition is smaller and smaller ( see Fig.1 ) . The thought based by this rule that if company changes production procedure by adding pollution control equipment can accomplish the purpose of pollution decrease. In the long term, these production processes alteration may assist companies salvage money. This can non be easy assumed that the environmental devastation done is equal to the charges. Daly and Cobb ( 1989 ) indicate that, â€Å" economic loss ‘s rating is capable to uncertainness and broad divergency, but non physical consequence merely. † Practically, regulative bureaus and authoritiess do non seek to associate external costs to revenue enhancements or charges. Charges can be used to obtain income to cover the costs of programme to undertake jobs of pollution. However, charges normally are designed to make an inducement for polluters to minimise the discharges. So this reflects that the costs of devastation they cause are non to the full paid by polluters. Therefore, the economic instrument ‘s major purpose is to internalise environmental costs and seeking the optimum pollution degree. However, it is hard to accomplish. Environmental effectivity and inducements Jacobs ( 1993 ) points out economic experts argue that enforcing costs, even though the polluting activity ‘s existent environmental costs are non internalized, but pollution decrease inducement is provided for houses and money can be saved as a consequence. There besides an statement that regulative criterions may do certain company achieve pre-determined bound marks, but there may be deficiency of inducement for company to cut down farther pollution while prove-based instruments provide fiscal inducement. Stavins and Whitehead ( 1992 ) advocated that â€Å" go on actuating the companies to better the fiscal public presentation by engineering development. Then the companies can cut down the pollutant outputs. † If the economic instruments are decently structured, the companies can be motivated to follow and prosecute in betterment and invention uninterrupted † ( Grabosky, 1993 ) . Economic determinism assumes that the desirable technological alterations will automatically happen under suited economic conditions ( Baranzini et al. , 2000 ) . Under this position, the political and societal factors are non considered by technological development. There is so much scholarship in the scientific discipline and engineering surveies ‘ academic subject that the technological developments have been based ( MacKenzie and Wajcman, 1985 ; Bijker et al. , 1987 ) . Although enforcing monetary values to companies for the environmental harm may give force per unit area on it to minimise the charges, we can non guarantee that the company will make so in the countries where imposing charges. ( Rosenberg, 1976, Chapter 23 ) . Using new engineering and means to go through the in other operation parts or go through the cost to the client is more inexpensive and profitable manner o cut down the environmental cost The effectivity of inducement is mostly depending on the sums of subsidy or charge or revenue enhancement is imposed. If it is low, company may non alter their engineering in order to moo the environmental cost, the consequence is small. ( Jacobs, 1993, p. 7 ) . There are many surveies indicated that the inducement is low if the charges are excessively low. ( Postel, 1991, p. 32 ; Stavins and Whitehead, 1992, p. 31 ; Barde and Opschoor, 1994, p. 25 ) Theoretically, there is no account why instruments of statute law failed to make a invention motive to better the public presentation continually. ( Ashford et al. , 1985 ; Caldart and Ryan, 1985 ; Cramer and Zegveld, 1991 ) . For case, Caldart and Ryan ( 1985 ) argument that economic conditions and engineerings are non bound regulative attacks. It is means that the legislative instruments could non promote company to transport out more technological invention in order to alter economic fortunes. Practically, policy shaper rarely take this attack for the similar ground. Because high adequate charges are rarely levied since they are excessively disquieted about reaction of industry. Regulating within the technological model and bing economic is preferred by them. Environmental statute law can curtail the discharges level that should be met and the technological type that should be used such as establishing on attacks of Best Practicable Technology ( BPT ) and Best Available Technology ( BAT ) . It has conventionally been believed that the technological kinds are restricted by policy shapers will harm to innovation activities in the United States. In Australia, policy shapers have non advised company what criterion of engineering should be used. Alternatively, the criterions of discharges have been set which based on the bing engineerings. As a consequence, there is incentive to alter engineering since the criterion is sensible to accomplish, but non merely an environmental end ( Beder, 1989 ) . The cause of neglecting to make inducements through the legislative instruments or monetary value based instruments is same. In both instances, the authorities establishments ‘ strengthens, the politicians ‘ willingness, and the extent of community engagement and review are decisive factors. There are different jobs of policy instruments are listed by J. Rees ( 1988, p. 175 ) : First, the ends of policies are often conflicting, confused and switching. Second, the procedure of execution can non, and does non, running along consistent, clear ends-means lines. Last, the policy instruments are manipulated by the involvement groups within both the regulation governments and the regulated community. Brian Wynne ( 1987, pp. 4-5 ) besides points out the viing involvements ‘ interaction necessity to the standard executions. For illustration, the interested parties are regulated and regulative authorization, authorities and nearby community. It normally includes dialogue, version and via media. Rees suggests that economic mechanisms, advocate slope to do the premise that â€Å" the control system of pollution is chiefly composed of economically rational pollution shapers and enterprisers running without capital, organisational, perceptual and proficient restrictions. This is non the instance. For case, although the cost to change the production procedure or put in pre-treatment equipment may be lower than the charges in the long term, most companies are non willing to put on the initial cost payment. However, there is no pick for companies in the legislative instruments. Rees said that there are several surveies have shown 25 % -30 % polluters do non understand the system of pricing which may hold radically different degrees of payment significantly if the sewerage ‘s volume or strength composing of the discharge can be changed by polluter ( Rees, 1988, p. 184 ) . Many polluters do non cognize how to alter the methods of pollution decrease and seek the most favorable determinations in the involvement of themselves. Cost effectivity and economic efficiency Under the price-based steps, the environmental costs are failed to be internalized and inducement for alteration engineering is less than the legislative steps. Then economic experts argue that price-based steps are more cost-efficient and economically efficient than legislative steps. They point out that the regulative criterion imposes a high cost load on the company and hinders the growing of economic. During 1970s and 1980s, statute law has been characterized by Stavins and Whitehead that costs are non regarded in the execution. They prefer protecting environment by market-based inducement as the other options: aˆÂ ¦the ordinances impact on the economic strength and its competitory ability in international markets are heightened concernedaˆÂ ¦ under the ordinance, behavior is dictated and net income chances are removed. Then, unneeded loads on the economic system are placed and more effectual environmental engineerings are stifled. Economic instruments claim that ordinances are non cost-efficient. It is because the ordinances require emanations from all companies to run into unvarying criterions, but non see whether they have ability to run into them. Installing peculiar pollution control engineerings in the companies are required by the ordinances but there is no consideration on whether the companies affordable for them. Although the ordinances can better the quality of environment, the cost is excessively high. On the other manus, economic instruments are said to allow that concern should portion the pollution control load in an effectual manner. ( Stavins and Whitehead, 1992, p.9 ) The suggestion is come from that the pollution decrease of the some companies are less expensive than others. So, it is sensible expect that these companies reduces more pollution is more effectual than the other companies for whom it would be non cheaply. In this manner, the pollution control ‘s fringy cost is accomplishing an excess unit of pollution decrease ‘s extra cost. So, the concerns ‘ fringy costs of pollution control would be equalized. For case, the rate of pollution discharge fee is aggregate to all companies. The companies will happen that cut downing the pollution discharge is cheaper to pay the fee if the decrease of pollution cost is more than the discharge fee payment. However, in most instances frequently show that, economic instruments save cost are non due to implementing pollution decrease. Jacobs ( 1993 ) point out that the efficiency is an statement of theory but non an empirical one and provides the illustration in the follow: The sewerage charges raised 400 % in Britain. The authorities failed to alter behavior of companies, even parts of pollution control investing would be pay back. It is because the affected companies did non understand the system alteration. The pollution decrease issue is non dealt by applied scientists but the finance section. So the companies did non cognize the available option of engineering. Therefore, it is more efficaciously necessitate the companies to put in better engineering by ordinance. Savage and Hart ( 1993 ) suggest that: â€Å" Efficiency is a major foundation for the rational, the text edition of intermediate economic sciences ‘ fantasy universe: in the market mechanism, coincident imperfectnesss is non constrained the universe, for illustration, imperfect competition or monopolies, outwardnesss, uncertainness, asymmetric information, revenue enhancements, uncomplete markets or moral jeopardies. † Economists frequently argue that determination devising of centralised authorities is less efficient than market. It is because, under the market-based mechanism, information is automatically gathered and the balance of supply and demand is ensured and allotment of resources is expeditiously. Nevertheless, pollution charge suited for this kind of statement because enforceable remains and monitoring are needed. The policy shaper still should cognize the sum of waste are discharged and guarantee that companies have wage for the pollution discharge fee right and have been paid its waste. â€Å" Any environmental control system should be checked by inspectors to do certain that claimed discharge, resource extractions or emanations are right. Therefore, bureaucratic is necessary since they are revenue enhancement inspectors, but non regulative 1s † ( Jacobs, 1993 ) .

Biographical Essay Work History Essay

My work history starts as a mother of two delightful teenagers. I have enjoyed spending time with my kids since they were babies and watching them grow into hard working, wonderful people. In recent years I helped create an exercise movement class for preschool aged children. In this job experience I created weekly lesson plans that included activities that stimulated their gross motor skills. Activities such as hopping on one foot, running, and jumping. We used games to increase the childrens hand and eye coordination. The bean bag toss was one of the popular games with the kids. I kept the parents informed of their child’s class experiences. Working for four years as a gymnastics instructor gave me the opportunity to teach young children ages two through nine. I was responsible for teaching gymnastics skills that would build into more complicated gymnastics skills. In the kids daily sessions of gymnastics I included activities that would increase their coordination and flexibility. I was expected to conduct an orderly class consisting of fun, skills, motivation, and discipline. I met with the parents on a monthly basis to show what the children had been learning in class. I strived to get to know the parents and keep them involved and informed of their child’s progress in gymnastics class. For more than fifteen years I have instructed fitness classes. Teaching these classes has strengthened my ability to work in a service-oriented job allowing me to establish a good relationship with the participants in my classes. It has been my responsibility to produce a safe class that is enjoyable, and productive. My classes have varied in participants including a senior’s aerobics class and a kid’s movement class. Teaching gymnastics to preschool aged kids was the most rewarding experience I had. The excitement of watching the children learn and master a skill was very thrilling, especially when they accomplished a difficult skill. The connection that I was able to make with each child was very satisfying. One of my top priorities was building the kids self-confidence and making each child know that they were very important. Services and / or Extracurricular Activities I spent five years as a  co-leader for a Girl Scout troop. While serving in this job I helped plan the girls meetings and outings. Earning badges was accomplished by finishing a lesson and doing an activity that went along with the lesson. We spent time at summer camps teaching the girls’ new songs, games, and how to cook out doors. I have taught Sunday school classes that consisted of two and three year old children. My job of service was to teach the lesson plan for the day; we enjoyed singing and playing games, coloring pictures, and using glue. Reasons for Choosing Education as a Career My dream of being a schoolteacher extends back into my early childhood. The jobs that I have had in the past have helped me in making a decision to become a schoolteacher and devote the rest of my life to teaching in a classroom. Teaching allows me to be involved in children’s lives and I can contribute to our society and help develop our future generations. Other careers that I have considered were Physical Therapy, or a Personal Trainer. I was attracted to these two jobs because of my background in the exercise field. But the desire to teach and be involved on a daily basis with children far surpasses the desires that other careers offer. Choosing teaching as a career I can have a huge impact in a child’s future. I will face many challenges along my path of teaching. But I also anticipate rewards of self-fulfillment. Teaching the hard to reach kids is a challenge I will face, and if I can help one of those children along the journey of life I will have made a difference. I look forward to the new faces at the beginning of the year and very familiar ones at the end of the year. Teaching opens up an opportunity to give to our children the ability to love to learn. Professional Goals In the future I will continue my education until I graduate with an Associate degree from the College of Southern Idaho. My following years I will continue my formal education to get my Bachelor degree. I intend to follow my dream of becoming a schoolteacher in the  elementary level of education. I will strive to make every child know that he/she is a very important person to me. I will give them the opportunity to succeed in a safe, kind, and learning environment.

Researching Educational Leadership Assignment Example | Topics and Well Written Essays - 2000 words

Researching Educational Leadership - Assignment Example The Falk article draws data from a dozen vocational education programs and training sites throughout Australia. The facilities are known as vocational education and training sites. (VET) the accumulated data is derived from a series of 44 written surveys including interview responses. Five focus groups were also included from the various facilities around Australia, resulting in a total of 64 respondents to the questionnaires. In essence the data paints a picture of a four stage cyclical process, a process of leadership interventions which is characteristic of greater effectiveness. The cyclical process culminates with a leadership style that is enabling for the teacher leader and of the achievements of professional associates. Every individual, including teaching professionals possess their own unique traits, strengths, and personal aptitudes. Among these personal abilities natural leadership qualities can and will emerge in virtually any professional setting. The Falk study identif ies the necessary role of these individual capabilities, and their contribution to the classroom setting. But it also illustrates a higher-level process of leadership that exists within the organization and which is defined by the cyclical process of the leadership intervention cycle. The key issues involved in this particular study hinge upon a question of whether or not the organization will have better overall direction with many individuals that display leadership qualities, or whether a single over all leader/administrator has more of an influence upon the success of the organization. The collective skills of individual teachers according to the study, are not sufficient to explain the overall culture of enabling leadership. A healthy organization, in which leadership principles are nurtured and developed will accrue a form of social capital, this can be instrumental in easing management burdens as well as facilitating diplomacy within the organization. Within a school district , as with other hierarchies often there can be tensions between the demands for efficient leadership as it pertains to risk management, as well as the necessary drive towards innovation, as it pertains to superior efficiency, and the vigorous fulfillment of the organization's mission statement. Thus, an over arching mediator becomes the crucial link in the chain that connects the resources of leadership as they exist on the individual level, amongst teachers themselves. Within the healthy organization this is required to achieve a synergistic effect that provides leadership, and improves the quality of lower – tiered leadership for the institution. This of course, raises questions about the potential of leadership training. Additional professional development to facilitate training of the institution as a whole in some cases can provide more effective leadership for the organization from a top-down perspective, as well as strengthening leadership potential amongst individuals within the organization. The benchmark establishment of professional goals for the school or institution can assist in this process. Q2 Many researchers in this field will cite a community of inquiry model, as core to their theoretical framework (COI). This model comes in many shapes and sizes, with a considerable breadth of information therein.

You choose the topic Research Paper Example | Topics and Well Written Essays - 1250 words - 2

You choose the topic - Research Paper Example Rare earth elements are not rare as suggested by the name but are abundant in the earth’s crust even more than some metals (see table 1). However, they are dispersed and their concentration on the earth’s crust is very low and therefore they cannot be easily exploited. In addition, each rare earth deposit is unique and contains different ore bodies which contains several rare earth elements in varying proportions. Rare earth elements do not occur naturally in elemental state as most metallic elements but are found in a large number of minerals types including halides, oxides, carbonate, phosphate and silicate (Eriksson and Olsson 5). In this project we want to address beneficiation as one of the aspects of chemical process of obtaining rare earths form the naturally occurring ores. Beneficiation is the second step of mining after the ore is removed from the ground. Beneficiation process is divided into two steps i.e. physical beneficiation and chemical beneficiation. Chemical beneficiation is applied after the physical beneficiation. Depending on the composition of the ore, different chemical techniques can be applied to separate the rare earth elements from other minerals contained in the ore. There are various types of ore bodies which include; monazite, euxenite, gadolinite, xenotime, bastnasite, and Elliot lake uranium (Gupta and Krishnamurthy149). Different ore bodies have different compositions and hence different chemical beneficiation processes. There are two different chemical beneficiation ways of obtaining rare earth elements from monazite ore. This difference comes from the fact that either sulphuric acid or hydroxide can be used to first attack the ore (Gupta and Krishnamurthy 149). Acid treatment. In this treatment (see fig.1), concentrated sulphuric acid is used to heat the monazite sand up to a temperature of between 120 and 150Â °C ( Bongaerts 67). Both thorium and