India’s Energy Scenario

Energy in India for the Coming Decades Anil Kakodkar Chairman, Atomic Energy Commission, India [email  protected] gov. in The reforms initiated in India since the beginning of the nineties have led to rapid economic progress and better growth rates. In the first decade of this century the growth rates seem to be still better. Studies by several academics and consultants forecast continued high growth rate for the next several decades.I’ll quote two such studies, one by Dominic Wilson and Roopa Purushothaman of Goldmann Sachs [1] and the other by Dani Rodrik and Arvind Subramanian of the International Monetary Fund [2]. Wilson and Purushothaman write, â€Å"India has the potential to show the fastest growth over the next 30 to 50 years. Growth rate could be higher than 5 percent over the next 30 years and close to 5 percent as late as 2050 if development proceeds successfully. † Rodrik and Subramanian write, â€Å"†¦.. rowth in capital stock together with growth in factor productivity will yield output growth of 5. 4 percent. Over the next 20 years, the working age population is projected to grow at 1. 9 percent per year.If educational attainment and participation rates remain unchanged, labor growth will contribute another 1. 3 percent, yielding an aggregate growth rate of 6. 7 percent per year, or a per capita growth rate of 5. 3 percent. This is a lower bound estimate and, even so, would be significantly greater than the per capita growth rate of 3. percent achieved in the 1980s and 1990s. Over a 40-year period, a 5. 3 percent growth rate would increase the income of the average person nearly 8-fold. † Growth in economy is made possible by several inputs, the two most important being energy and human resource. In this conference, we are concerned about energy and so I’ll confine myself to energy. Energy is the engine for growth. It multiplies human labour and increases productivity in agriculture, industry as well as in serv ices. To sustain the growth rate in economy, energy supply has to grow in tandem.For a large country like India with its over one billion population and rapid economic growth rate, no single energy resource or technology constitutes a panacea to address all issues related to availability of fuel supplies, environmental impact, particularly, climate change, and health externalities. Therefore, it is necessary that all non-carbon emitting resources become an integral part of an energy mix – as diversified as possible – to ensure energy security to a country like India during the present century.Available sources are low carbon fossil fuels, renewables and nuclear energy and all these should be subject of increased level of research, development, demonstration and deployment. In the Department of Atomic Energy, we have conducted a study with the aim to quantify the likely growth in energy demand in India, and the role nuclear energy has to play in the decades to come. The ultimate objective was to formulate a strategic plan to meet the projected role to be played by nuclear energy [3].Energy intensity of GDP, defined as the ratio of the energy consumption to the GDP, has been observed to follow a certain trend worldwide. Below a certain level of development, growth results in increase in energy intensity. With further growth in economy, the energy intensity starts declining. Based on data by International Energy Agency [4], overall energy intensity of GDP in India is the same as in OECD countries, when GDP is calculated in terms of the purchasing power parity (PPP). Energy-GDP elasticity, the ratio of the growth rates of the two, remained around 1. from early fifties to mid-seventies. Since then it has been continuously decreasing. Electricity is the most important component of the primary energy. Electricity-GDP elasticity was 3. 0 till the mid-sixties. It has also decreased since then. Reasons for these energy–economy elasticity changes are : demographic shifts from rural to urban areas, structural economic changes towards lighter industry, impressive growth of services, increased use of energy efficient devices, increased efficiency of conversion equipments and inter-fuel substitution with more efficient alternatives.Based on the CMIE data [5], the average value of the Electricity-GDP elasticity during 1991-2000 has been calculated to be 1. 213 and that of the primary energy- GDP elasticity to be 0. 907. Estimating the future GDP growth rates of India from the projections made by Dominic Wilson and Roopa Prushothaman [1], taking the primary energy intensity fall to be 1. 2 percent per year [6], extrapolating the electricity intensity fall from past data till 2022 and subsequently a constant fall of 1. 2 percent year, the growth rates of the primary energy and electrical energy have been estimated as follows. Period |Primary Energy |Electricity | | |Percent Annual Growth |Percent Annual Growth | |2002-2022 |4. 6 |6. 3 | |2022-2032 |4. 5 |4. | |2032-2042 |4. 5 |4. 5 | |2042-2052 |3. 9 |3. 9 | These rates are the basis of the projections reported [3]. It may be recalled that historical primary energy and electricity growth rates during 1981- 2000 were 6 percent per year and 7. 8 percent per year respectively.Based on the growth rates given in the above table, per capita electricity generation would reach about 5300 kWh per year in the year 2052 and total about 8000 TWh. This would correspond to an installed capacity of around 1300 GWe. Annual primary energy consumption would increase from about 13. 5 EJ in 2002-03 to about 117 EJ in 2052-53. By then the cumulative energy expenditure will be about 2400 EJ. The present status of various fuel-resources in India is given in the table 1. The domestic mineable coal (about 38 BT) and the estimated hydrocarbon reserves (about 12 BT) together may provide about 1200 EJ of energy.To meet the projected demand of about 2400 EJ, one has to tap all options includ ing using the known fossil reserves efficiently, looking for increasing fossil resource base, competitive import of energy (including building gas pipe lines whenever and wherever permitted based on geo-political considerations and found feasible from techno-commercial considerations), harnessing full hydro potential for generation of electricity and increasing use of non-fossil resources including nuclear and non-conventional.Before proceeding further, I would like to explain the status of nuclear power technology in India. Comprehensive expertise in all aspects of nuclear fuel cycle and Pressurized Heavy Water Reactors (PHWRs) has been acquired through self reliant means in India. PHWRs which constitute the mainstay of the first stage of our nuclear power programme are the most efficient systems in terms of uranium utilization and would enable about 10 GWe of nuclear installed capacity with our modest indigenous uranium resources.Having tied up the PHWR programme upto around half way mark, we have now embarked on the development of Fast Breeder Reactor (FBR) based second stage of our programme with the construction of the 500 MWe Fast Breeder Reactor launched in October last year. Our studies indicate that we should be in a position to support around 500 GWe power generation capacity based on plutonium bred from indigenously available uranium. This is a part of the strategy of three stage programme formulated by India right in the beginning of the programme aimed eventually at exploitation of our vast thorium resources.With decades of R;D in our laboratories and Industry, India has come a long way since the inception of the programme and the current efforts are aimed at further improving the economy, enhancing safety and expanding the programme to meet the increasing electricity demand in the country. The 540 MWe PHWR unit at Tarapur that went critical on 6th March, about 8 month ahead of schedule is an important landmark in terms of efforts in this directio n. In addition to the indigenous technology, the Indian power programme includes two GE-BWRs which were set up as turnkey projects right at the inception of our programme.While these reactors are running well as a result of comprehensive backfits and upgrades carried out indigenously, our experience in terms of securing reliable fuel supply has not been satisfactory. Two 1000 MWe VVERs are presently under construction at Kudankulan and would contribute additional carbon free electricity to Indian grids when completed. Coming back to the energy growth scenario [3], the study points out that it is necessary to develop metallic fuel for the fast reactors during the next one decade.Metallic fuels have short doubling time and can ensure a fast enough growth in nuclear installed capacity. Assuming that the fast reactors to be set up after 2020 are based on metallic fuel, the study calculates the maximum possible contribution that can be made by nuclear till the middle of the century. Hydr o and non-conventional potential being limited, the remaining demand has to be met by the fossil fuels. The results indicate that it is possible to have one quarter of the contribution coming from nuclear by the middle of the century, if the fast reactor growth follows the course outlined.Even after the growth projected by the study, there will be shortages and the country will continue to import energy as at present. Research and development plans have to be formulated to ensure that new technologies can be deployed to reduce energy imports. Three efforts being made by the Department of Atomic Energy are worthy of mention here in this context. Bhabha Atomic Research Centre is working on development of a Compact High Temperature Reactor with the aim of producing hydrogen, which could be the most important energy carrier in the future.Several institutions within the Department of Atomic Energy in India are together working for the development of Accelerator Driven Systems, so that on e could sustain growth with thorium systems and move towards incineration of long lived radioactive wastes. The Institute for Plasma Research (IPR), is spearheading the Indian effort in developing a fusion based system for the production of energy. One of the world’s first super conducting steady state tokamak with elongated diverter plasma having 1000 second operation capability is nearing completion at IPR.The Indian population corresponds to one sixth of world population. However, the carbon dioxide emission from India is only around 4% of the global emissions. On the basis of current energy mix and the present day technologies for electricity production, the CO2 emission from India alone could become as much as half of the present level of global emission in a few decades from now. A larger share of nuclear power in India beyond what would be realized through indigenous efforts would, in principle, contribute to further avoidance of CO2 emission which otherwise would be i nevitable.To conclude, the first stage of the indigenous nuclear power programme involving setting up of pressurized heavy water reactors is now in industrial domain. With the start of construction of the 500 MWe fast reactor in October last year, the second stage has been launched. It is time for India to accelerate the implementation of the second stage and development of the third stage of the nuclear power programme. In parallel, India has to continue to work towards development of emerging nuclear energy technologies to address its long term energy requirements which are indeed very large.References [1] Dominic Wilson and Roopa Purushothaman, â€Å"Dreaming with BRICs: the path to 2050† Global Economics Paper No 99, Goldmann Sachs, 1st October 2003. [2] Dani Rodrik and Arvind Subranium, â€Å"Why India can grow at 7 percent or more: projections and reflections†, IMF Working Paper, WP/04/118, July 2004. [3] R. B. Grover and Subash Chandra, â€Å"A strategy for gro wth of electrical energy in India†, Document No 10, Department of Atomic Energy, Mumbai, India, August 2004. 4] International Energy Agency (IEA), Key World Energy Statistics, 2003. [5] Centre for Monitoring Indian Economy (CMIE) 2002, â€Å"Energy†, April 2002 [6] International Energy Agency (IEA), ‘World Energy Outlook 2002 Highlights’ p 32. Table 1: Primary energy ; electricity resources |   |Amount |Thermal energy |Electricity | | | | |potential |   |   |EJ |TWh |GWYr |GWe-Yr | |Fossil |   |   |   |   |   | |Coal |38 -BT |667 |185,279 |21,151 |7,614 | |Hydrocarbon |12 -BT |511 |141,946 |16,204 |5,833 | |Non-Fossil |   |   |   |   |   | | Nuclear |   |   |   |   |   | | Uranium-Metal |61,000 -T |   |   |   |   | |In PHWRs |   |28. |7,992 |913 |328 | |In Fast breeders |   |3,699 |1,027,616 |117,308 |42,231 | | Thorium-Metal |2,25,000 -T |   |   |   |   | |In Breeders |   |13,622 |3,783,886 |431,950 |155,502 | | Renewable |   |   |   |   |   | | Hydro |150 -GWe |6. 0 |1,679 |192 |69 | |Non-conventional renewable |100 -GWe |2. 9 |803 |92 |33 | Assumptions for Potential Calculations Fossil 1. Complete Source is used for calculating electricity potential with a thermal efficiency of 0. 36. 2. Calorific Values: Coal: 4,200 kcal/kg, Hydrocarbon: 10,200 kcal/kg. 3.Ministry of Petroleum and Natural Gas [7]has set strategic goals for the next two decades (2001-2020) of ‘doubling reserve accretion’ to 12 BT (Oil + Oil equivalent gas) and â€Å"improving recovery factor’ to the order of 40%. Considering the fact that exploration is a dynamic process and India is one of the les explored countries, reference [3] assumes that cumulative availability of hydrocarbons up to 2052 will be 12 BT. Non-Fossil Thermal energy is the equivalent fossil energy required to produce electricity with a thermal efficiency of 0. 36. Nuclear 1. PHWR burn-up = 6,700 MWd/T of U-ox ide, thermal efficiency 0. 29 2. It has been assumed that complete fission of 1kg. of fissile material gives 1000 MWd of thermal energy. Fast reactor thermal efficiency is assumed to be 42%. Fast breeders can use 60% of the Uranium. This is an indicative number.Actual value will be determined as one proceeds with the programme and gets some experience. Even if it is half of this value the scenario presented does not change. 3. Breeders can use 60% Thorium with thermal efficiency 42%. At this stage, type of reactors wherein thorium will be used are yet to be decided. The numbers are only indicative. Hydro 1. Name plate capacity is 150 GWe. 2. Estimated hydro- potential of 600 billion kWh and name plate capacity of 150,000 MWe gives a capacity factor of 0. 46. Non-conventional renewable 1. Includes: Wind 45 GWe, Small Hydro 15 GWe, Biomass Power/ Co-generation 19. 5 GWe and Waste to Energy 1. 7 GWe etc. 2. Capacity factor of 0. 33 has been assumed for potential calculations.

Cognitive Organizers Essay

Cognitive Organizers are powerful teaching and learning tools. They encourage active learning, demonstrate that knowledge is interconnected, facilitate group work, accommodate individual learning styles and engage students in higher order thinking. They can be used before, during or following instruction. Using cognitive organizers before instruction is an exciting way of introducing lessons and also cues students about the lessons and activities to come after. It also facilitates discussions among the students, as each person is given the opportunity to share their experience or knowledge on the various concepts. Further, cognitive organizers can be used as prereading and prewriting strategies to activate background knowledge or generate interest among the students. Concurrently, when teachers use cognitive organizers, they help students access prior knowledge and previous experiences, hence giving the students a framework of knowledge upon which to build. It may also serve as a motivation for the students as they are involved and interacting in the formation of the cognitive organizer and using their critical thinking skills. Cognitive organizers involve students in predicting relations and also help them make connections between various concepts. Furthermore, when cognitive organizers are use during instruction, students are able to connect better with the information being received. It also clarifies the relationships of ideas and assists many students with remembering the ideas easier. Moreover, students’ comprehension and recall of the concept or subject matter at hand is improved and developed. Additionally, Shalaway (1997), states that cognitive organizers can be used following instruction, as a way of assessment on the concept or area. Students will indeed enjoy this innovative and exciting way of assessment, hence giving way for better grades. Also, after a lesson or unit, a cognitive organizer can help students assimilate and reflect upon the new knowledge gained.

The “New World” Explorer

A common instrument of writers is to explore a terrain or new culture through the eyes of a stranger.  Ã‚   A stranger would seek to explore and discover all the facets and aspects of his new environment.  Ã‚   On the other hand, to introduce the world through the eyes of a resident becomes dull in time as the resident, having been familiar with most of the workings of his world, would leave much of it that is not within his immediate vicinity unmentioned or unsaid. In both the stories Benito Cereno and Daisy Miller, the protagonist is an American.  Ã‚   He also has had some familiarity of his environment, but not enough not to make him less of a stranger. This identity is beneficial, as the United States is psychologically set apart from the traditions of Old Europe, and even that of Spanish America.   The protagonists suddenly become pioneers, in their attempts to discover more of their immediate strange and unfamiliar territory.  Ã‚   This â€Å"New World† effect is more enhanced as outside of the limited perspective of the protagonist, the author carefully and quietly arranges appropriate symbolisms of object, expression and style to give a subtle reference to the traditions, American for Henry Melville, and European for Henry James. The immediately recognizable symbolism seen by the protagonists in Benito Cereno and Daisy Miller is represented through the symbolism of object.  Ã‚   These are embodied in concrete landmarks that have deeper context in their respective traditions.  Ã‚   In 19th century America, in Benito Cereno the landmark was the ship of the Spaniard, the San Dominick.  Ã‚   The ship embodies the restless, pioneering spirit, which first brought Europe in contact with the Indians of the Americas; it later becomes the lifeblood of the European colonizers, particularly the Spanish, in the form of the Galleon Trade and the Slave Trade.  Ã‚   It is therefore noteworthy that San Dominick represents both institutions in its housing both treasure and African slaves (Melville, 140). Henry James’ Daisy Miller depicts the landmarks as the landscape of the mountains across the Vevey lake, the Chateau de Chillon, and the Colosseum.  Ã‚  Ã‚   The castle represents the hundreds that dot Europe’s country, having been once the social and cultural centers from Medieval times even to the 18th century, when ruling families and aristocrats reigned in lavish palaces and mansions.   The Alpine mountains are a sight common in southern Europe: from Switzerland, Italy, southern Germany and Austria, and is reminiscent of its kin west in the form of the Pyrenees.   The use of French, from terminology to architecture, represents the dominant influence of the French since the Enlightenment, and the imagery of Rome—from cobbled streets to Colosseum likewise symbolize the preservation of Europe’s antiquity throughout its reverting to contemporary times. The fear depicted in both works, meanwhile, are symbols of expressions that, in their descriptions, also indicate the respective mindsets of the peoples of those times: for instance, in the period of Benito Cereno, the threat of piracy was a very real danger encountered by any captain.  Ã‚   The ship was the lifeblood of trade between nations, and in Spain’s case between Empire and colonies. Captain Delano’s spasms of panic at the possibility of the Saint Dominick crew being pirates were understandable. Social etiquette was at the center of the â€Å"gentleman’s world† in European social circles.  Ã‚   The fears were more directed at what harmed this â€Å"social order†: scandal.  Ã‚   Thus, in Daisy Miller, the growing fear in Daisy’s open associations with men of questionable character was that it fomented a scandal among social circles, as behavior that openly defied social norms. Discrimination also plays a substantial role in the fears, which feeds off the protagonists. Captain Delano’s worries are fed by the liberal actions of the Spanish captain towards the various incidences pointing to the African’s seeming â€Å"equality† with the Spaniard—the unpunished abuse by a slave boy towards a Spanish counterpart, the reactions of two slaves upon the brusque action of one Spaniard and the treatment of the African slave-prince Atufal’s defiance (Melville, 166).   Winterbourne’s fears are borne from the disapproving observations of the women of Daisy’s associations, as is described in Daisy Miller, as well as her habit of going out at night with a total stranger—once attempted with Winterbourne, then actually acted on with Giovanelli. The symbolism of structure and style is one that can be discovered after the second and third reading.  Ã‚   It gives the reader an indication of whether, like the American tradition, the narrative is one linear and direct and practical or uses subtle undertones, as is done in European cultures.  Ã‚   In Benito Cereno, the paranoia of Captain Delano grows through different images: the sight of the Ashantee slaves with their hatchets (Melville, 161), the comings and goings of members of the Spanish crew (151, 153), and the hushed conversations of his host and the African aide (153). When the ruse is finally discovered, the resolution is swiftly conveyed through an American expedition (189-192). In contrast, European literal tradition is more reflective and focuses on the varying subtleties of movement and speech.  Ã‚   The resolution, then, is less clear if the layers of meanings of the scenes that preceded it was not easily understood.  Ã‚  Ã‚   It was therefore, in Daisy Miller, through the careful study of the exchange of words between Winterbourne and Daisy in Chateau de Chillon leading to her sudden change in demeanor, her unforgiving chidings of Winterbourne in Rome of his final words to her in Vevey, and the confrontation between them in the Colosseum, could the tragic final scenes be clearly understood. Works Cited References Melville, Herman.   Billy Budd, Sailor and Other Stories.   New York: Bantam Books, 1984. Electronic Sources James, Henry.   â€Å"Daisy Miller†.   Daisy Miller by Henry James.   February 2001, Project Gutenberg, 02 May 2002 .

British Cinema and Industry 1980 and Present Essay

British Cinema and Industry 1980 and Present - Essay Example General audiences usually enjoy repetitions of elements that they can recognise from their experience of movie watching along with certain amount of novelty. This paper focuses on the characteristics of British cinema from 1980s to the present. British cinema: genres and themes British cinema is known for distinguished genre and themes that separate it from other national cinemas. There are few Western movies made in the United Kingdom for obvious reasons. British cinema works on putting their own distinctive mark on existing genres and is always inventing new genres and themes. Many British comedy movies have their origin in the era of silent movies when the comedy was slapstick. The British documentary movies have their roots in the 1890s although they have taken their current form in the 1930s . Adaptations from literature have always formed major themes in many British movies. In the 1980s, classic novels almost gave rise to a virtual film industry. This is because such themes an d styles were adored by the audiences. Even today classic adaptations remain high in demand, although contemporary writers are also making their mark in the British film industry. The British film industry was going through an ailing period in the 1980s. The industry was not embraced by the Thatcher administration. The Conservative government did not extend any support to the industry and saw cinema as a â€Å"commercial enterprise which would need to sink or swim on its own†.Margaret Thatcher treated the film industry indifferently and her government passed a Bill in the 1984-85 that abolished a previous law that allowed a percentage of box-office receipts to be invested in the British film industry. ... treated the film industry indifferently and her government passed a Bill in the 1984-85 that abolished a previous law that allowed a percentage of box-office receipts to be invested in the British film industry. The government also abolished the 25 percent tax benefit of film investors. This encouraged the filmmakers to take more economic risks and experience with new innovations. The culture created by Thatcher became implicit or explicit themes in many popular movies of this era (Friedman, 2006, pp.21-22). 1980s was an era of realism in the British film industry and most themes were based on realistic social matters. During this period British filmmakers found specific ways to portray the social problems and matters which they viewed as â€Å"contemporary reality†. Such filmmakers were more often not concerned with the aesthetic depiction of matters concerned with reality. Any issues that concerned the society were reflected and amplified in the movies in the way they were r ecognised by the socially aware filmmakers. In the 1980s, many films were made to reflect the realistic conditions of the working class in Britain. The British film director Derek Jarman saw Britain as a country where morals have perished. He made films like Britannia Hospital (1982) and The Last of England (1987) which reflected the real issues of the prevailing social structure. Although 1980s saw racial riots in parts of London, few movies were concerned with issues relating to racism. One major exception was the documentary movie Handsworth Songs (1986). Unlike the previous decades when women were portrayed only as objects of desire, 1980s was also an era when British movies depicted â€Å"strong female protagonists†. These movies reflected the rising position of women in the British society

What is philosophy Essay Example | Topics and Well Written Essays - 250 words

What is philosophy - Essay Example This philosophy becomes the guidance that helps an individual in practicing as well as performing research relevant to his/her field of work. Philosophy has become an important course in various educational institutes that offer degrees and certifications for studies that focus on human behavior. Studying philosophy helps an individual in answering various queries that they have since birth. These questions are abstract in nature and mostly include questions regarding how human beings should spend their lives and what is the reason due to which they exist and who governs their behavior and various similar questions. Philosophy can be regarded as a motivator and promoter of research. Thinking in a philosophical manner can result in various questions that individuals have regarding occurrence of incidences. Human beings tend to develop various philosophies for these incidences and due to this they are promoted to perform research to identify concrete understandings of their beliefs and

China and tibet Essay Example | Topics and Well Written Essays - 250 words

China and tibet - Essay Example Tibetans say that China has snatched their independence making their culture, language and religion sink. Moreover, they say that Chinese troops have killed thousands of Tibetans since 1950. â€Å"The groups also claim Tibetans have gradually become the minority population in their own homeland† (Armstrong). Tensions went high in 2008 when a protest led by Tibetans in Lhasa turned into violent riots. Tibetan mobs started burning shops, buses and assets of ethnic Chinese. The government of China ordered its security forces to handle the situation. A clash occurred between Tibetans and the security forces, which resulted in a number of deaths. Tibetan exiles claimed that Chinese forces killed nearly 200 Tibetans, whereas the government denied this by saying that only 22 people were killed in the incident and most of them were Chinese civilians. Since then, the tensions have been high in China. The present situation is that Tibetans have contacted the international community to put pressure on the government of China. However, the government of China does not seem to listen to the concerns of Tibetans at all. Armstrong, Paul. â€Å"Whats behind Chinas Tibetan unrest?.† CNN.com, 31 Jan. 2012 Web. 02 Apr. 2012.

Assessing organizational culture Case Study Example | Topics and Well Written Essays - 1000 words

Assessing organizational culture - Case Study Example ike communication in general, organizational communication represents a more complex phenomenon as it entails the integration of two unique concepts, â€Å"organization† and â€Å"communication†. In light of this, it is prudent for scholars to understand aspects relating to both concepts separately, and in turn find the intersection points of the two. Initially, individual’s conceptualization of organization communication centred on production of messages; however, this has now changed with research showing the importance of developing literacy within this domain. Literacy has and continues to broaden people’s perspectives with regard to organization communication, as they begin to appreciate the variety of ways they can approach, examine and understand communication (Cheney et al., 2010). Champoux (1996) identifies six key functions of organization communication, which include information sharing, emotion, feedback, persuasion, innovation and integration to coordinate various functions. Through effective channels of communication at the workplace, different parties are able to share information, which facilitates planning and the execution of tasks with the sole aim of achieving both individual and organizational goals. In addition, effective communication channels serve as a tool for parties to communicate their e motions; for example, top management can these channels to communicate their displeasure/ dissatisfaction with employees’ performance. They also serve as a feedback tool whereby, recipients are able to respond to the senders’ messages; therefore, give their input on specific matters. Finally, effective communication channels permit the integration of various functions within the organization. Departmentalization exists even in organizations with the simplest organization structure. As such, effective channels of communication enable the coordination of functions, which are specific to each department. Cheney et al. (2010) argue that literacy in

English as a Foreign or Second Language Essay Example | Topics and Well Written Essays - 1000 words

English as a Foreign or Second Language - Essay Example As a student it becomes even more difficult to survive and mange oneself in a totally new environment because the student is new to the country and he has no one known to him and if he is unable to talk in the language of the people of the country in which he is living then he will be left all alone and there would be no one to communicate or talk with him. In order to avoid oneself form such difficulty it is better to learn the language. For a student it is of utmost importance that he is well aware and has good command over the language of the teachers so that he can understand what is being taught to him. If the student does not have good command over the language of the country in which he is studying then he will have to face some major problems because he will not be able to understand what the teachers are teaching, he also will not be able to comprehend the talks of the students and the student would become very confused and depressed. In most of the universities the medium o f instruction is English. In fact English has become an international language. English has now become the language of most of the people and in many countries the medium of instruction in many universities is English because it has become an international language. But still in some countries like most of the Arab countries, Japan and China the medium of instruction in their universities is their own mother tongue. Students from such countries have to face a lot of difficulty when they move to other foreign countries for continuing their studies further because the students are not at all habitual of studying and communicating in English. For such students and students particularly from the Arab countries like Saudi Arabia, Kuwait, etc. it becomes a necessity to learn English so that they do not have to face any difficulty living in the foreign country with the foreign people. The students from the Arab countries like me find it extremely difficult to learn English as it is complet ely different form the native language of the Arab countries; our mother tongue, Arabic. English and Arabic are two different languages which are completely diverse form each other. The origins and basic linguistics of the two languages are completely different from each other. This is the reason why we students find it extremely difficult to learn English. The pronunciation and accent of both the languages are widely different that is why even the Arab students speak English they face quite difficulty in speaking out the words with the correct pronunciation. As a result we students find it very difficult to adjust them in the new environment where everyone else is speaking English and the person can neither speak proper English nor understand it completely. We students find it really difficult to manage with this difficulty. The areas where students face greatest difficulty is when the students are made to focus on the vocabulary and grammar. Grammar of any language is difficult to learn and understand. And when someone foreign is learning a foreign language then it becomes really difficult to learn and understand the grammar and make use of it in sentences. The foreign students also have to face a lo

My Plan for Reconstruction Essay Example | Topics and Well Written Essays - 1000 words

My Plan for Reconstruction - Essay Example I must say to them that tyranny, exploitation and a subhuman treatment spanning across decades do stifle the human ability to dream. So on this momentous eve, I extend to our black brethren the freedom of daring to dream. These dreams will need to be supported by ample persistence and perseverance and the opportunities to seek education and justice. I know they understand the fundamental meaning of freedom. Now what they need to learn is that how this freedom is formally exercised and enjoyed in the American political and socio-economic life. I evoke them to extend their hands and grasp their fair share in the American political and socio-economic life. Dream and everything will become possible! I predict that it will not be a miracle if one day, one of their sons and daughters becomes the President of the United States of America. Surprisingly, there were many amongst us who kept the flame of freedom and liberty lighted amidst the winds of greed and debauchery. I thank them and at t he same time intend to remind them that our struggle is far from over. The vested interests that gave way to slavery, a thing that was totally and abominably contrary to what we believe in, are as potent today as they were at any other time. The abolitionists no doubt comprise of one of the most enlightened spirits in America. The nation will require their services for long times to come. Who can better become the voice of those that had been denied a voice than our fellow brothers and sisters who fought for the rights of the oppressed?

The challenges an organisation may face in implementing a performance Essay

The challenges an organisation may face in implementing a performance and reward strategy - Essay Example Our motive at this point of stage is to ensure that each and every employee gives his or her level best for Pentangelli’s. In order to achieve this we have to organize the system. The initial stage would be to clearly divide the three brands under Pentangelli’s. Once having done that, we will authorize an individual person who will be responsible in managing each of the brands. They will be reporting to the highest authorities in Pentangelli’s. Doing this will help us to maintain a clear distinction in the three brands. After having done that we will be using performance appraisal, 360 degree evaluation to evaluate the employees. This will help them to get a clear picture of the employees. Once done, they can be asked to improve upon their weakness. In order increase their performance and productivity, they need to create a friendly atmosphere with them. Appreciation helps in motivation so hard workers would be rewarded. Finally creating a good social platform wi th the employees will help them get motivated and create a sense of belonging in the company. PENTANGELLI’S Table of Contents EXECUTIVE SUMMARY 1 PENTANGELLI’S 2 Introduction 4 Recommendations 4 Total Reward Management 6 Alignment 6 Employee Value 7 Cost 7 Conclusion 8 References 11 Introduction Having read the whole case of Pentangelli’s it is clearly evident that the brand gradually started crumbling after the fast expansions done by Luca. The management clearly could not handle the pressure of the growth. Our motive at this point of stage is to ensure that each and every employee gives his or her level best for Pentangelli’s. In order to achieve this we have to organize the system. The initial stage would be to clearly divide the three brands under Pentangelli’s. Once having done that, we will authorize an individual person who will be responsible in managing each of the brands. They will be reporting to the highest authorities in Pentangelliâ⠂¬â„¢s. Doing this will help us to maintain a clear distinction in the three brands. Recommendations As discussed in the introduction we will be dividing Pentangelli’s into three verticals. First, the restaurant in the five star hotel which will be run by Luca. There will not be any change in the management and Luca will be solely responsible for it. He will not be interfering in the other two verticals. The Bistro’s known as Take 5 will be managed by Tina as it has been doing very well under her expertise of public relations. Sean though he is not keeping well will be handling the Gastro Pubs. He does not need to be present there physically. As mentioned in the case study Sean had appointed managers in each of the gastro pubs. We need to ensure that these managers have thorough knowledge of the restaurant business. Preferably they should be having a background in hotel and restaurant management. (Cannell, 2007) They will be responsible for managing the restaurant. Sea n will be getting timely reporting from then as and when required. The managers will have the authority to take simple day to day decisions. Sean will only be prompted when some major judgment needs to be done. Sean can visit the gastro pubs whenever he wishes to and see as to how things are being run. This is the first plan of action. The next part will be performance management and a reward system. An organization is run by the employees. So in order to maintain the success, we need to ensure t

What are the Strategic Issues Facing Marks & Spencer and what strategy Essay

What are the Strategic Issues Facing Marks & Spencer and what strategy should they follow next - Essay Example The two merged to form a chain of small penny stalls under the retail name of Marks and Spencer plc. Michael Marks was succeeded by his son Simon Marks in the running of the stalls. Simon Marks, soon turned around of the bazaars into fully fledged stalls and introduced the St. Michael’ Logo which was used as a distinct sign of quality on all the Marks and Spencer products. With over 885 stores in 40 territories,600 in the UK and survey data showing that one in every three British women were wearing on of the Marks & Spencer range of bras, Marks and Spencer was officially recognized as being the largest clothing retailer in the UK. In 2010, a new CEO was appointed to head the company and the CEO was immediately besieged with a myriad of issues associated with continuing the challenges of strategic change and reassessing the company’s competitive strategy. Challenges Facing Marks & Spencer. Some of the internal issues facing Marks and Spencer include insufficient levels o f communication between the Board and the investors. Examples of this situation include the announcement by Stuart Rose in April 2008 declaring his taking over the joint role as both the company CEO and also as the chair of the board of directors. This move proved to be quite unpopular, since it was in breach of the advice that the company got from the combined code of corporate governance. The body provides a, code that is voluntarily followed by most of the FTSE 100 companies. The moved proved to be immediately unpopular with investors, who deemed that Rose was now holding too much power. This is especially since the move by a single person, to hold the combined roles, had previously proved to be dangerous. There were also fears that it could prove to be detrimental once again. Rose overlooked all these concerns and proceeded with the appointment (Hill & Jones 2010). In the first half of the year 2009, Rose and his marketing director awarded themselves an enormous ?1 million packa ge in the form of bonuses and shares. The move was opposed by investors and, Rose and his Marketing Director were forced to give up the package in order to try and appease the discontented shareholders. Louise Patten also came under fire, and there was a motion to block her reappointment for signing off the bonuses. In the July 2009 AGM, Rose narrowly survived a motion of no confidence by investors who were concerned about his joint role as both the company CEO and Chairing the board of directors. Over 40 percent of the investors had voted against the reappointment of Rose as Chair. Rose was in the limelight once again when in May 2010, the investors expressed their frustration with the board after, when without any shareholder consultations whatsoever, the board negotiated an impressive golden hello deal for the new CEO Bolland, amounting to ? 7.5 million in the form of cash as well as shares. The deal was criticized by many critics as being excessive and credited with giving Bolla nd a less than perfect start to his tenure at Marks and Spencer plc. (Collis) Among the corporate issues facing the company include the announcement by Rose in July 2009, stating his intention to stand down as the company CEO, but not as the Chair of the board until 2011. This move was seen by investors as having the probability of creating an almost impossible leadership task for Mark Bolland, the incoming CEO with Rose and the Marks and Spencer plc board looking set to remain in their capacities for the medium term. The inability by Marks and Spencer to break into the mid-age demographic, and its over reliance on the 55years+ demographic which comprised of nearly two thirds of its customers was also criticized by Tony Shiret in 2009. The launch of the (GIVe) range of

Pagan Christianity by Frank Viola Essay Example for Free

Pagan Christianity by Frank Viola Essay The book â€Å"Pagan Christianity† by Frank Viola and George Barna leads readers into the world of religion, religious customs and rituals, sermons and religious clothing. The authors show how the church has changed over times and what new practices and beliefs it has adapted. Frank Viola is known to be an American writers and speaker who has published a series of books devoted to problems with church calling people to return to the biblical principles. Therefore, the central thesis of the book is that people should get back to biblical principles in their religious beliefs because modern church practices are rooted in secular or Pagan practices which have nothing to do with the Bible and God’s commandments, as well as the church doesn’t resemble the early church which was described in the book of Acts. Modern church is based on hierarchical structure; whereas the author claims Jesus came with the strong intent to put an end to legalism, structure and hierarchy. The book is very interesting from historical viewpoint and I think that it is broadly accurate offering us new insights and facts from religious past. Pagan Christianity The authors start their narration with strong claim that modern churches have little resemblance with the early centuries churches described in the New Testament. With the partaking of the Traditional Church the author became very interested trying to reveal what we went on. The first chapter is reflection of authors’ inquiries on the subject of interest. For example, Viola questions whether there was a need to turn down light and to wait when the Spirit would move on to another church. The author thinks we are the ‘Children of Lights’, although he admits that he doesn’t agree with any theologian and preacher offering his unbiased review. It is said that the word ‘pagan’ is a part of book’s title and it is applied to the churches being discussed. However, even the authors agree that often this term is not applicable. In the second chapter the author discusses the issue of the Church Building and ‘modern’ church-goers\believers. It is emphasized that the Church has built itself. The original meaning of the word refers to the Greek language ‘ekklesia’ and it means a group assembled. Viola argues that time and words are describing the gradual development of Holy Places and things which are considered important parts of religious world. The authors discuss Constantine as he was one of the first Christians who gave legitimacy to the Christian Religion. Constantine promoted and supported grand displays of religious architecture. Further, the authors review religious clothing, music, steeples, architecture, thrones borrowed from other cultures along with customs and rituals. In the third chapter Viola provides overview of the order of traditional Worship and description of Sunday morning sets. He argues that standard order should be held in all churches with only slight differences. For example, he writes: â€Å"You can scour your Bible from beginning to end, and you will never find anything that remotely resembles our order of worship†. Further, the authors describe contributions of historical Church leaders – Luther, the Puritans, the Pentecostals, etc. In the fourth chapter they describe the sermon abandoning principles of Protestantism. The authors argue that the early churches were not the sermons; instead, they were places for gathering and Jesus functioned as its Head. In the fifth chapter Viola and Barna introduce the Pastor which is viewed as an obstacle to functioning of every member. The pastor is the fundamental figure in Protestantism and he â€Å"is often better known, more highly raised, and more heavily relied on than Jesus Christ Himself†. (p. 65) And it is a serious mistake. It is noted that the word ‘pastor’ isn’t a tile – instead, it is a function. Viola notes that the word ‘pastor’ is referred to in Ephesians 4:11 only one time: â€Å"a scanty piece of evidence on which to hang the Protestant Faith. In this regard there seems to be more biblical authority for snake handling than there is for the present-day pastor†. p. 66) In the sixth chapter there is a detailed description of Sunday morning costumes. The authors describe dressing up for church, what clothing is appropriated and why. The next chapter is devoted to the origins of Music Ministry and description of the hierarchy of clergy. The eighth chapter analyzes Tithing stressing that it is used in the New Testament and Clergy Compensation, althou gh it is never used by the Christians. Further, the authors specify Baptism, its core principles and fundamentals. They explain that Baptism has replaced the Sinner’s Prayer. The Lord’s Supper was firstly a festive banquet and, therefore, lost its concrete picture of ‘The Body and Blood’. The final chapters are devoted to religious education and how it is possible to receive the qualification to Minister the gospel. Viola and Barna provide new insight into the New Testament offering so-called second glance at Jesus, churches, pastor functioning, religious customs and education. Conclusion: Strengths Weaknesses Frank Viola and Geroge Barna offer new ideas and facts about religious order, customs, traditional music and dressing. The book is very informative, innovative and well-organized. Moreover, it is very interesting from historical perspective as it is challenging and thought-provoking. The authors incorporate many references about the culture of time, adaptation of church, etc. I like their idea about church building that church is not the place – it is the people. Nevertheless, there were several controversial moments I can’t agree with. I see that Viola offers his own version of organized empire and it seems that he is supreme speaker and the founder of knowledge. It is evidence of hierarchy which he manages to escape. Moreover, he claims that such situation shouldn’t happen in church, although he puts himself on superior position. Viola calls people to leave their church as all of them don’t follow Biblical principles. However, he tells we are the Body of Christ contradicting himself. I think that we shouldn’t worry about such doctrinal issues. Despite certain weaknesses, the book is very informative and fresh.

Diversity and Human Capital and Indias Workforce

Diversity and Human Capital and Indias Workforce A diverse ethos like India not only showcases unity in diversity but also the potential to create waves in innovative thinking. India, largely an agro-based economy has undergone a massive facelift in the recent decade due to the dotcom boom, giving the economy a phenomenal push. Statistics reveal that India will be a youth country in the coming decades. Given the immense knowledge pool, diversity and youth population at the countrys disposal, it is only natural to predict that India will be the global leader. At the same time, amendments are required to manage these great resources effectively to deliver what we dream to achieve. Challenges faced by India Inc. are not only population burst, corruption, terrorism, etc but also management of youth the immense knowledge base available along with attitude refinement to facilitate retention of knowledge. The country which boasts of a plethora of natural resources should reinforce ways to utilize these depleting resources and the talent pool available to the best of its potential. This paper looks into few of these issues and suggests methodologies for managing the diversity. INTRODUCTION A country like India is a perfect example of unity among diversity with a mix of cultures, languages, religions, age groups, etc offering a tremendous opportunity to learn and garner knowledge. The country has evolved over centuries into a multi-dimensional ethos, learning and assimilating a vast pool of knowledge. But have we succeeded in managing and utilizing this talent pool to its full potential? This provoking question leads us to the topic, Managing Diversity: The Challenges Faced By India Inc. A key distinguisher and common asset, knowledge is of importance. The healthy diversity along with a huge population does India an opportunity to grow fast. New ideas and fresh perspectives are natural offshoots of diversity and should be seen as blessings in disguise, rather than a challenging hurdle towards growth. But in this age of information technology and speed, application of knowledge, will majorly contribute to the countrys growth story. Diversity in India and its implicationsà ¢Ã¢â€š ¬Ã‚ ¦ Between 2003 and 2050, India will add about 250 million people to its labour pool à ¢Ã¢â€š ¬Ã‚ ¦ By 2020, 61% of Indians will be under 35, i.e. about 780 million Indians will be in this age group. The statistics indicate that future India will be home to more young minds, thus increasing the average disposable income, and facilitating greater youth participation in decision making activities with fresh outlook. The youth and baby-boomer generations together can contribute a lot in adding value to the knowledge chain. The acquired knowledge should be practiced or else the country cannot thrive on the potential knowledge leaders diverse knowledge pool available. The concept of Knowledge Learnt, Used Thrown, entrenched in the young minds will have to be given up to produce innovators and thought leaders, and stress on practical application of knowledge is quintessential. Knowledge is of no value unless you put it into practice. -Anton Chekhov LITERATURE REVIEW A knowledge economy and its attributed index primarily depend upon 4 key pillars listed by The World Bank as Innovation, Education, Information Communication Technology (ICT) and Economical Incentive Regime (EIR) under the Knowledge Assessment Methodology (KAM) and Knowledge Economy Index (KEI). This index ranked India at 101 indicating a large scope for improvement on the knowledge front. As per our analysis, innovation has the highest weightage in the methodology used. Sample data shown below Innovation or the pioneering application of knowledge has a great impact on the countrys overall knowledge economy index. The contribution towards patents is closely related. Patent data largely by the US (KEI Rank 10). In context with the categories of knowledge-based assets, two broad classifications have been made explicit or tacit. Included among the former are patents, trademarks, etc i.e. things that can be archived and codified. Much harder to grasp and record is tacit knowledge, which leads to knowledge creation. The challenge inherent with tacit knowledge is figuring out how to recognize, generate, and share it. The basic framework that employs knowledge creation as a black box driving economic growth is usually called the endogenous growth model. The literature using this black box includes Shell (1966), Romer (1986, 1990), Lucas (1988), Jones and Manuelli (1990), etc. The basic variable of study is a knowledge worker (or K-worker). Every time a K-worker researches with their best partner(s); the new knowledge jointly created becomes shared knowledge, thus dynamically builds up knowledge in common. Heterogeneity in K-workers provides an opportunity to cooperate and is endogenous to the model. In this way, the heterogeneity or diversity of all K-workers changes endogenously over time. Thus, a partnership in knowledge creation is most productive when common and differential knowledge are in balance. From a birds eye view, the ability of a nation to use, synergize and create knowledge capital determines its capacity to empower its citizens. Aptly in the words of Dr. Manmohan Singh, Prime Minister of India, The time has come to create a second wave of institution building, and of excellence in the fields of education, research and capability building so that we are better prepared for the 21st century. India today needs a well defined knowledge-oriented paradigm of development to provide a competitive advantage in all the fields. The National Knowledge Commission (NKC) in India has been entrusted to study the parameters and suggest corrective measures to give India the competitive knowledge edge in the coming decades. The KEI model of World Bank has been re-visited from the Indian context introducing various parameters which make plausible sense in the country. The model: METHODOLOGY The paper explores both tangible and intangible parameters for enhancing the knowledge capital in India. The world in future will be driven by a knowledge-base economy and this notion is not foreign to India. Indias history is marked with events that reinforce the countrys potential to learn and showcase unity through diversity. Think about the Indian War of Independence and it will make sense. India is and will remain for some time one of the youngest countries in the world. This demographic dividend is seen as an opportunity to accelerate the countrys rate of growth. We have a critical mass of skilled, English-speaking knowledge workers. The knowledge economy of the twenty-first century demands competencies not only in the area of ICT but also in group learning, risk-taking ability, tolerance to multicultural views, learning from nature and synergizing to innovate. The gathered knowledge needs to be effectively channelized, applied and disseminated to the people of this country. This eventually increases the common knowledge pool and benefits the economy as large. The scriptures, traditional knowledge and the baby boomer generation help us to think in a holistic manner for applying the knowledge. The attitude of young minds, if nurtured in the right way, can produce a positive impact. Like Victoria Abril puts ità ¢Ã¢â€š ¬Ã‚ ¦ Keep your ears open, your eyes open, grab everything you can, react, and learn The countrys youth should be encouraged to research and get an insight on various subjects to tackle real life challenges through innovative methodologies. Traditional scriptures like the Vedas are treasure chests of knowledge and teach us how to deal with state problems, how to teach and grow, etc. They should be shared with the common man, to enable him to think and utilize age old wisdom in an age of intense competition. In Sanskrit, the importance of knowledge is quoted as Nahi Jnanena Sadrsham Nothing is equivalent to knowledge FINDINGS ANALYSIS A burgeoning young human capital is bound to have positive implications on the economy. If not tended well, this boon can turn into a bane. The age distribution of India is projected to change by 2020. The population in the age group 15 -59 years (currently 58 percent) is projected to increase to nearly 64 percent. This shift is shown below India would then have a handsome mix of youth and grey-haired wise men to share different views and synergize to suggest solutions by application of their acquired knowledge. But, this upcoming bulge will also have its own set of ideologies thoughts and would thus have to develop a tolerance level and attitude to learn from their older generations about the vanities and gyan of life. The baby boomers have retained knowledge imparted to them about 80 years back and continue to apply them in real life problems. The youth needs to appreciate this and concentrate on application of gathered knowledge rather than garner degrees. The flip side is that the countrys education system forces one to memorize more and remember the same till exams. The classroom learning limits the students perception. The lessons are merely learnt, used thrown today. More nature and environment based learning would give students a fresh perspective. QUALCOMM has pioneered and introduced solutions inspired from nature like Low-friction ship hulls inspired by shark skin, etc. If all the young minds of India can be guided to think this way, imagine what wonders can be created. The knowledge imparted and discussed should be taught along with examples from diverse backgrounds. At graduation level, students should be encouraged to pursue research work apply knowledge creatively, and indulge in good communication. These are imperative for attitude refinement of individuals which needs tendering to keep them receptive to ideas. This could proactively nurture entrepreneurs at an early stage. Today with a demand driven economy, there is a tendency of people to learn, use throw (forget) the acquired knowledge and comment it doesnt matter well start afresh and learn fast. For facilitating retention, reframing teaching patterns is equally important along with grooming of students. This grooming would include exercise based teaching, vocational training and soft skills training. The habit of reading gaining perspective about varied issues is dwindling and should be emphasized at an early age. We need to strike a healthy balance between self made efforts outsourced tasks to help develop a rational outlook on activities around us. This is imperative for creating a sustained cadre of knowledge workers. It is clear that workers with equal unequal skill sets create better synergy and lead to value addition in knowledge pool. The overall literacy rate in India is highly unsatisfactory. There are areas in India where the abundance of knowledge gets eclipsed by the inability to communicate. Due to this disparity, thoughts and ideas are stalled without getting discussed. Such barriers need to be removed, to educate and tap the knowledge base available. Socrates subtly quotes, The only good is knowledge and the only evil is ignorance. Illiteracy is one of the acclaimed evils in society. The initiative to educate is not with the Government alone but requires active support from every citizen. Empowering minds and sharing knowledge will corroborate the Indian growth story and make it flourish. Management of gargantuan diversities like India will be effective only when citizens rightfully learn, teach apply acquired knowledge for betterment of the country at large. Diversity in population provides an excellent opportunity to explore and learn. A clichà ©d process might be holistically applied for a different cause to apply, learn and grow. If, like the IT companies the concept of collating ideas can be practiced at the national level it would keep the minds of people busy and help everyone learn more from the surroundings and contribute more. Heterogeneity plays a major role in this context. The quote below from Mahatma Gandhi states how important it is to share knowledgeà ¢Ã¢â€š ¬Ã‚ ¦ If you give me rice, Ill eat today; if you teach me how to grow rice, Ill eat every day. Innovation in a developing nation requires a favorable climate, one that is free from bureaucratic regulatory obstacles and fosters interactions across boundaries. The sources of knowledge might be universities, research institutes, think tanks, etc but the right to information is the prerogative of every individual. With this, we conclude our paper and hope to ignite thoughts through an insightful Sanskrit shloka about knowledgeà ¢Ã¢â€š ¬Ã‚ ¦ CONCLUSION India has showcased unity integrity for umpteen causes. Now she is faced with the new challenges of growing population and managing knowledge. For the nation to become a leader in knowledge based economies, the same commitment and unity needs to be shown by each citizen. Today in an intense global market, few variables will give India a competitive advantage. Lifelong learning, youth population and synergy between diverse cultures and attitude to learn, to name a few. In the next few decades, India will have a large youth base. Given this demographic advantage over other countries, we are optimally positioned to establish a knowledge-oriented paradigm of development. An economy that creates, acquires, manages, adapts, and uses knowledge effectively for its economic development, can overcome many challenges while its individuals learn, retain and re-use the knowledge base to innovate and grow perpetually. In the words of our Prime Minister, to leapfrog in the race for social and economic development. The attitude towards learning would also differentiate a country as a trend-setter. Inventive education patterns, fighting illiteracy, and application of knowledge are important tasks for India Inc. amidst exiting challenges. The proactive involvement of elder generations in designing learning programs for students and future managers, to incorporate their traditional wisdom and insights on real life challenges is important. In short, the message is to learn, share, apply and manage through diversity and adversity. Hope and inspiration along with dedication to the task are equally important to the success of a vision. This thought has been beautifully quoted by the former Indian President and visionary Dr. A P J Abdul Kalam in his book Wings of Fire, For all your days prepare, And treat them ever alike, When you are the anvil bear, When you are the hammer strike

4G Technology An Analysis

4G Technology An Analysis 4G refers to the Fourth Generation of cellular wireless standards in telecommunications that will succeed it predecessors 3G 2G. It is a high-speed broadband wireless network that offered comprehensive secure all IP based services. According to the ITU, requirements for 4G standards were specified by IMT-Advanced (International Mobile Telecommunication-Advanced). The data rates of 4G service for high mobility communication was set to 100 Mbps and low mobility communication was set to 1 Gbps. It focuses on cellular system with extremely high data rates the concept of seamless technology in all wireless systems. Carriers that are using OFDM (Orthogonal Frequency-Division Multiplexing) as an alternative to TDMA and CDMA are promoting their services as 4G even though their data rates are not high according to the ITU. 4G outdoor users that have Internet access through cell phones or smart phones were promised to have a targeted data speed of around 100 Mbps by the IMT-Advanced and the data speed for indoor users such as LAN (Local Area Network) was suppose to be around 1Gbps. This type of higher speed for both fixed and mobile Internet users is truly amazing. 4G proposes scalable channel bandwidth flexibility of up to 40 MHz. The network resources are dynamically utilized shared to sustain more simultaneous users over each call. 4G also has the ability to propose high QoS (Quality of Service) for multimedia support and offer smooth handover heterogeneous networks. It must also have the ability to offer wireless LAN roaming interact with systems used for video broadcasting. Figure 5: Seamless Connection of Networks in 4G [5]. The 4G architecture comprises of 3 crucial areas of connectivity namely PAN (Personal Area Network) WAN (Wide Area Network Cellular Connectivity Each device will have the ability to interact with the Internet based information that is modified over the network used by the device at that time. This structure can support a wide range of 4G mobile devices that sustain global roaming. In 4G networks users that join the network have the ability to add mobile routers to the infrastructure. Changing user patterns can be accommodated by dynamically shifting network capacity coverage. Creating additional routes as the concentration of people is higher in one area compared to the other enables additional access to the capacity of the network. Users can easily avoid congested routes by hoping to the less congested routes. This allows the network to automatically balance the capacity by increasing the network utilization. The service for all the users improve with the increase in number of users. Need for 4G One of the questions that come to mind when thinking about future 4G systems is there need. The first application to be mobilized was voice telephony, few years ago. The short message service (SMS) was the first application to be introduced as a mass-market application. The hardware complexity was not an issue at the given time along with the advantage of small bandwidth requirements. The SMS was just the commencement of various data services like mobile email, web browsing etc. The key feature in most of them was the packet based wireless networks carrying IP data in one hand and powerful terminals that could cope with these applications on the other. Although the network capacity is still not an issue due to less number of users, there are number of reasons for increased bandwidth requirements in the future. First, the number of wireless users increases exponentially resulting into an increase in bandwidth requirement. Second, the popularity of video and music downloads has increas ed immensely within few years. The information content in a video or music is more than the corresponding text but so is the capacity requirement. Last but not the least, mobile social networks have taken the current internet usage to a much higher level. Picture viewing sites, web blogs and also video sharing sites have reshaped the internet. The need for 4G arises from insufficient performances by 3G to meet the future needs several incompatible standards. The requirement for service portability, universal mobility the need for hybrid networks including both WLAN cellular network design led to the invention of 4G. New modulation methods that offered higher bandwidth with the help of an all IP based network with converged data voice capability were possible only by 4G. The chief characteristic developed by 4G was to offer accommodation for the QoS services that were set as requirements by the ITU. 4G technology guarantees secure, comprehensive invulnerable IP based mobile service solutions for wireless modems, laptops, smartphones other mobile devices. Applications such as Multimedia Messaging Service (MMS), mobile TV, wireless broadband access, video chat, and Digital Video Broadcasting (DVB) are being urbanized to use a 4G network. Other IP based services include enhanced gaming, high quality multimedia streaming, IP telephony really fast broadband Internet can be accessed. This groundbreaking technology will have many more facilities available to users all around the world. Imagine having the ability to access information and services anytime, anywhere with a seamless connection as well as receiving large quantity of information, pictures, data video are the key aspects of 4G technology. The future 4G networks would consists of a set of numerous networks having IP based services as their common protocol such that the users are in control can choose each application and environment. The chief achievement would be integrating 4G technology with the existing cellular technologies with the help of advanced technologies. The main features of 4G services that interest the users specifically are high dynamic integration application adaptability. This means services are delivered available to the users as per their preference users traffic, radio environment air interfaces are all supported by 4G. Over the years researchers have been working on ways of fulfilling the above needs. Ethernet, Wireless LAN and TD-CDMA, were all supported by the developed network overall. The mobile technology of 4G should be focusing on the data-rate increase, new air-interface. The so-called core of the technology, OWA platform should also be embedded with high-speed wireless systems and wireless mobile system. It should also, Reuse many different access technologies as possible thereby implementing various functions using the IP-based protocols and technologies. Provide real-time services with high enough quality like the current cellular networks. Accessibility to services that should not be affected by the handover interruption. Mobile systems should have interfaces from various technologies simultaneously specially to TDCDMA (UMTS-TDD), wireless LANs (802.11b), and fixed networks (Ethernet). Be capable of accessing to routers and provide an interface between a wired network domain and wireless. A single access router directly mapped to a single cell controls an IP subnet. Provide a network management server for mobility management, charging, Quality of Service, security and paging issues in a fixed network. Features of 4G Features of 4G Wireless Systems: User Personalization and Friendliness: The combination of personalization and friendliness is a key feature in 4G. The well-designed transparency allows man and the machine to interact naturally and is well appreciated. The operator can send the data to the user depending on his/her preference or the data can even be filtered at the user end based on his/her requirement. In order to address a mass market and gain a positive impact on peoples lifestyle it should be kept in mind that every user wants to feel unique and important. Thus personalization enables the user to configure his device and select the services according to his preferences. The combination hence confers the right value to the users expense. Heterogeneity: 4G should have a definite advantage in the users day-to-day life. This is obtained by combining the network and terminology heterogeneity, both of which contribute equally to the efficiency of usage. With network heterogeneity, omni-directional connection and common service can be obtained thereby assuring certain level of quality of service. Heterogeneity enables a user to access and perform multiple things simultaneously for example, if a user wants to buy tickets to a museum and listen to music, he can do that. Terminals in 4G may have to some common services out of their capabilities due to which tailoring of the content might become necessary. Since it is based on IP wireless connectivity, the optimization of internet is maximized. The circuit switching technology is replaced by packet switching. The specificity of an IP, thus increase the speed along with the reliability of transfer of data. The bandwidth is around 100Mhz and speed of data transmission up to 1 Gbps. Support: It supports multimedia, voice, video, wireless internet and other broadband services. Cost Effective: Transmission costs of various multimedia services are very low. High capacity, high speed and low cost per bit. Cost of leased spectrum figures in greatly in reaching profitability. For example, the initial resistance from the investment society is a hindrance for WiMAX. This in turn pushes the operators to create new ways of increasing capital. Global mobility, service portability and scalable mobile networks. Seamless switching or usually referred as handover is gaining popularity. Availability of inter- and intra- technology handovers promises minimum or no interruption thereby assuring Quality of Service (QoS). This is achieved with the help of continuous transparent maintenance of services and inclusion of WiFi to OFDMA. Better scheduling and call admission control techniques are available. Ad hoc networks and multi-hop networks: the independency from routers and access points is an added advantage. The dynamic activation of sender and receiver nodes is similar to a real-time system that is definitely a plus point of 4G. Also the network topology comes into play where every node is contributing to the data transmission. Mobility of users across multiple terminals and terminals across multiple technologies. Confidentiality of both user traffic and the network control information. 4G uses the IPV6 address scheme resulting in every cell having its own IP address. Interlayer security is provided in which only one layer is configured to do encryption on data. Predecessors of 4G LTE Long Term Evolution LTE (Long Term Evolution) is yet another technology under the brand of 4G technology. LTE is capable of giving a full support to the spectrum bands. Upgrading the current 3G networks to WiMAX is difficult in comparison to LTE. The pre 4G technology is known as 3GPP Long Term Evolution. If a 20 MHz channel is used LTE has a capacity of up to 50 Mbps in the uplink 100 Mbps in the downlink. WiMAX- Worldwide interoperability for Microwave Access WiMAX or Worldwide Interoperability for Microwave Access, is a faster Wi-Fi listed under 4G. Mobile operators using the latest spectrum bands benefits most from the WiMAX. If a 20 MHz channel is used WiMAX would offer data rates up to 56 Mbps in uplink 128 Mbps downlink. UMB Ultra Mobile Broadband UMB (Ultra Mobile Broadband) is based on TCP/IP networking technologies cascaded over next generation radio system with data rates up to 280 Mbps. The system was intended to be more proficient powerful of supplying more services than the technologies it was suppose to replace. UMB was the name within 3GPP2 standardization group to improve the mobile standards for next generation applications requirements. Qualcomm is UMBs lead sponsor ended the development of this technology supporting LTE instead. It intended to achieve data rates over 275 Mbps downstream over 75 Mbps upstream. Flash OFDM At an initial stage Flash-OFDM (Orthogonal Frequency Division Multiplexing) was supposed to be integrated into a 4G standard. 4G Architecture 1G wireless telecommunications led to the invention of the first kind of wireless cellular architecture that is still being offered by most cellular network providers. 2G could support more users in a cell than 1G by using digital technology. This technology gave access to many more callers by making use of the same multiplexed channel. It was primarily used for voice communication also included some very limited low rate data features such as SMS (Short Messaging Service). 2.5G gave access to the carriers to increase the data rates with just software upgrades with just making the users buy new handsets. 3G promised its users to offer greater bandwidth higher data rates that grants permission to send as well as receive more information. All 3 generations still have the Cellular Architecture or Star Topology where users within that cell can access a common central BTS (Base Transceivers Stations). The major advantage is that with this architecture carriers are able to construct nationwide networks, which most of the major carriers have already done. The major disadvantages of these networks as we progress are that as the data rate increases the output power increases so the size of the cell needs to be decreased in order to accommodate higher data rates. We would observe smaller cells as the consumers got scared with the increase in the output power. Some of the other disadvantages include no load balancing, singular failure point and spectral inefficiencies. The two very important characteristics of 4G technologies are: End-to-End Internet Protocol Peer-to-Peer Networking An all IP network would allow the users to use the same data applications that they use in wired networks. In peer-to-peer networking each device acts as a transceiver and a router for all the other devices in the network. This architecture eliminates the failure of single node. 4G is referred to as an ad hoc wireless networking technology, a combination of above characteristics. 4G plays a significant role by allowing users that are joining the network, the approach to add mobile routers to the existing infrastructure. The usage patterns for consumers dynamically shifts the coverage network capacity to be accommodate the changes as the users carry most of the networks with them. The users congregate leading to high demands of usage that also enables access to the network capacity as they create additional routes for each other. They tend to automatically skip from congested routes to lesser-congested routes. This authorizes the network to automatically balance capacity leading to an increase in network utilization. The user device that operate as router are basically a part of the infrastructure. So instead of carriers reducing the cost of devices they actually minimized and deployed the network of the carrier. 4G Mobile Network Architecture Each user interprets 4G mobile communications differently. For some its purely provides higher data rates to radio interfaces but for other it is internetworking of wireless LAN and cellular technologies. In order to accommodate traffic demand foreseen in an economically feasible way , 4G mobile networks must accomplish manifold increase in capacity in comparison to its forerunner. Mobile networks are planned for circuit switched voice until now. Fourth Generation wireless architecture was planned as heterogeneous infrastructure consisting of distinctive access systems in a corresponding manner. The user supporting personal agents enjoys unrestricted and ubiquitous connectivity to various applications over the available network. The figure below illustrates potential 4G mobile network architecture including cellular, satellite radio, ad-hoc and hot spot components. A BSC (Base Station Controller) accumulates calls from various base stations, enables handoffs, allot radio channels between BS (Base Station) and hands over calls to a more central mobile switching center. The emerging data networks overlie the existing voice architecture. With the increase in the data traffic this architecture has turned out to be cumbersome difficult to be managed with several network entities. The architecture contains common core Network connected to different wireless and wired networks. It is then connected to PSTN (Public Switched Telephone Network)/ISDN (Integrated Services Digital Network) via GGSN (Gateway GPRS Support Node). GGSN is the chief component of the GPRS (General Packet Radio Service) network. The GGSN is accountable for internetworking between packet switched networks and GPRS network such as Internet. This architecture is associated to 2G via SGSN(Serving GPRA Support Node) from BSC. SGSN is accountable for distribution of data packets to and from mobile stations within its physical service area. Wireless communication is facilitated between UE (User Equipment) and the network by a piece of equipment known as BTS (Base Transreceiver Station). The connection to 3G is through SGSN towards Node B via RNC (Radio Network Controllers). In 2G networks, Node B is equivalent to BTS. RNC replaces BSC and connects to various networks such as Ad-hoc mobile networks and WLAN access networks. Signaling protocols like SIP (Session Initiation Protocol) are extensively used for setting and tearing multimedia communication sessions like video and voice calls above the Internet. The future of mobile communication networks will face challenges in incorporating and integrating various wireless technologies and mobile architectures to achieve flawless wireless infrastructure. Networking technology, has accepted that wireless or wired networks can interface with the core over the IP protocol. IPv6 4G Network Architecture The 4G architecture that supports flawless mobility between distinctive access technologies has an IPv6 based network architecture. Handovers between inter-technology need to be supported else mobility issues will arise. IP network architecture eliminates the voice-centric structure from the network. Instead of packet data overlaying on voice network separate, rather simple data architecture can be implemented which eliminates multiple elements from the network. BSC functions are equally distributed among media gateway router and BS over WAN. These include Radio Bearer control, dynamic allocations and radio resource management that are handled by base stations whereas gateway router handles distribution of paging messages and security. Ethernet- 802.3 is used for grant wired access and Ethernet -802.11 is used for LAN access. The radio interface W-CDMA of UMTS is used extensively for cellular access. This arises the need for mobility to be implemented in the network layer as it cant be handled by the lower layers. IPv6 mechanism is used for internetworking eliminating the need to use internal procedure for handover over any technology. This clarifies that no internal procedures are sustained in W-CDMA cells but the same IP protocol facilitates the movement among the cells. The figure above illustrates a few handover potential in such a network to accommodate a moving user. The users can handover among any of theses technologies without splitting the network connection as well as supporting voice connections. The users have the opportunity to wander between administrative domains while having the capability to use their services across domains. There should be appropriate agreements among the existing domains. The service providers have the capability to track the usage of their consumers both on and off their network like while roaming. The entire network inclusive of all management functions and applications was being employed with the IPv6 protocol over the Linux environment. AAAC and QoS subsystems were responsible for providing service to each user according to the SLA (Service Level Agreement). The software for these was extended resorting to a combination of existing implementations and newly included modules. The 4 administrative domains are depicted in the figure with various access technologies. An AAAC (Authentication, Authorization, Auditing and Charging) system manages each administrative domain. At least one network access control entity, the QoS Broker, is required per domain. Due to the requirements of full service control by the provider, all the handovers are explicitly handled by the management infrastructure through IP-based protocols, even when they are intra- technology, such as between two different Access Points in 802.11, or between two different Radio Network Controllers in WCDMA [7]. The network providers are responsible for all the network resources while the user control their local network, applications and terminal. The key characteristics of this network architecture are : A User : It refers to a company or a person with SLA constricted with a provider for certain set of services. The architecture is concerned about granting access to the users and not specific terminals. MT (Mobile Terminal) : It is the terminal that gives access to the users for services. The network architecture can support terminal portability leading to the sharing of the terminal among various users though not at the same time. AR (Access Router) : This is the generic mode of connection to the network that gets the name of RG (Radio Gateway) for basically wireless access. PA (Paging Agent) : it is responsible for situating MT when it is idle and there are packets that need to be delivered to it. QoS Broker : it is solely responsible for managing one or more ARs. the AAAC system provides information that is used to control user access and access rights. AAAC System : It is responsible for SLA including charging and accounting. NMS (Network Management System) : It is responsible for overall network control and management. This entity guarantees and manages the accessibility of resources in the main network. This network is proficient of supporting several functions namely : Confidentiality both of user traffic and of the network control information QoS levels guaranties to traffic flows Inter-operator information interchange for multiple-operator scenarios Mobility of terminals across multiple technologies Mobility of users across multiple terminals IMT-Advanced Network Architecture The ITU specified IMT-Advanced (International Mobile Telecommunications Advanced) specifications for 4G standards. The data rate requirements for 4G service was set at 100 Mbps for high-level mobility communication and 1 Gbps for low-level mobility communication. Pre-4G technologies such as WiMAX and LTE have been in the market for a while. The most current version of these technologies do not accomplish the ITU requirements for 4G service. IMT-Advanced in compliance with the above 2 technologies are still under development and are namely called LTE-Advanced WirelessMan-Advanced The figure above illustrates the perception of a unified architecture developed by IMT-Advanced network built on IP as the common layer protocol. This interface facilitates services that allow the use of communication networks by the yet to be developed devices. With significant improvements in access speeds popular applications in wire line can be transferred under wireless networks in a identical flawless way. Application of 4G: Virtual Presence : 4G would provide user services to its users at all times irrespective of the fact that the user is on or offsite. The location applications of 4G would maintain a virtual database containing graphical representations and physical characteristics of metropolitan areas. This database can be accessed by users from anywhere by using appropriate wireless equipment, which would give the platform to appear virtual. Tele-medicine : 4G would create a platform to monitor the health of patients remotely through video-conferencing with the capability for doctors assistance at anywhere and at anytime. Crisis-Management Applications: Natural disasters leading to the breakdown of entire communications infrastructure needs to be restored as quickly as possible. In general it may take about a week or so to restore the services with 4G the communication services can be re-established in a couple of hours. Virtual Navigation: It will provide virtual navigation to users so that they can access virtual database to visualize the internal design of buildings. It requires very high speed of transmission. Tele-Geo Processing Applications: It would integrate GPS (Global Positioning System) and GIS (Geographical Information Systems) providing the users with location querying. Education: 4G would provide the opportunity to the people across the globe to continue on-line education in a cost effective manner. Multimedia-Video Services: 4G wireless technology is anticipated to deliver high data rates of multimedia services efficiently. There are two different types of video services: Streaming video and Bursting. Streaming is used only for real-time services and bursting is used for file download using a buffer and can take advantage of the entire available bandwidth. An appropriate solution for operators who are looking to achieve monetary and technical efficiency in their upgrade path would be combining the 2G-3G with 4G network functions. A SGSN+MME node and a GGSN+SGW+PGW node can act as a node for both 2G/3G and a 4G network. There are various solutions that offer flexibility to sparate functions when the traffic grows. 4G evolutions can be eased out by slowly converting the current systems into an integrated 2G/3G/4G system and then ultimately to a 4G system. LTE and SAE requirements are ardently followed. This solution, so far provided by Cisco enables one to enjoy the advantages of the existing system along with the augmentation of 4G so that operators can still use the present system if and when desired. It can support 2G/3G today and through a software upgrade these solutions can support 4G functionality as well when LTE networks are deployed. Cisco claims that operators need not perform forklift upgrades when evolving to 4G. Existing SG SN,GGSN, or PDG can be upgraded to 4G functional elements MME,SGW,PGW, and ePDG through the solution. The existence of a software upgrade solution to switch from 2G/3G to 4G shows the compatibility of 4G with 2G/3G.

Antonio Vivaldis Biography :: essays research papers

Antonio Vivaldi was born in Venice on March 4th, 1678. Though ordained a priest in 1703, according to his own account, within a year of being ordained Vivaldi no longer wished to celebrate mass because of physical complaints ("tightness of the chest") which pointed to angina pectoris, asthmatic bronchitis, or a nervous disorder. It is also possible that Vivaldi was simulating illness - there is a story that he sometimes left the altar in order to quickly jot down a musical idea in the sacristy.... In any event he had become a priest against his own will, perhaps because in his day training for the priesthood was often the only possible way for a poor family to obtain free schooling. Though he wrote many fine and memorable concertos, such as the Four Seasons and the Opus 3 for example, he also wrote many works which sound like five-finger exercises for students. And this is precisely what they were. Vivaldi was employed for most of his working life by the Ospedale della Pietà  . Often termed an "orphanage", this Ospedale was in fact a home for the female offspring of noblemen and their numerous dalliances with their mistresses. The Ospedale was thus well endowed by the "anonymous" fathers; its furnishings bordered on the opulent, the young ladies were well looked-after, and the musical standards among the highest in Venice. Many of Vivaldi's concerti were indeed exercises which he would play with his many talented pupils. Vivaldi's relationship with the Ospedale began right after his ordination in 1703, when he was named as violin teacher there. Until 1709, Vivaldi's appointment was renewed every year and again after 1711. Between 1709 and 1711 Vivaldi was not attached to the Ospedale. Perhaps in this period he was already working for the Teatro Sant' Angelo, an opera theater. He also remained active as a composer - in 1711 twelve concertos he had written were published in Amsterdam by the music publisher Estienne Roger under the title l'Estro armonico (Harmonic Inspiration). In 1713, Vivaldi was given a month's leave from the Ospedale della Pietà   in order to stage his first opera, Ottone in villa, in Vicenza. In the 1713-4 season he was once again attached to the Teatro Sant' Angelo, where he produced an opera by the composer Giovanni Alberto Rostori (1692-1753). As far as his theatrical activities were concerned, the end of 1716 was a high point for Vivaldi.

Great Gatsby Essay -- essays research papers

F. Scott Fitzgerald’s novel The Great Gatsby is about a man named Gatsby, in love with a woman, Daisy, who is married to Tom Buchannan. He dreams that one day he and Daisy will get together. Gatsby has worked hard to become the man that he believes will impress Daisy. Even though he has an extravagant house, lots of money, and wild parties, he is without the one person he wants, Daisy. Even befriending Nick deals with Gatsby getting Daisy, because Daisy is Nick’s cousin. In a meeting arranged by Nick and Gatsby, Daisy is invited over for tea and she sees Gatsby. It seems as if time is suspended for a moment, as they look at each other both thinking something. Then Gatsby tips over Nick’s clock, symbolizing that he is running out of time to try to capture what he and Daisy once lost. Through the lonely and careless characters of: Jordan Baker Jay Gatsby, Myrtle, and G. Wilson, Fitzgerald is able to illustrate the lack of spirituality in this novel.   Ã‚  Ã‚  Ã‚  Ã‚  The main place in The Great Gatsby that shows the lack of spirituality is the Valley of Ashes, where Myrtle and her husband, George Wilson live. It is a bleak, desolate valley including only one building, a car garage. One day while driving around Tom and Nick stop off at the valley to see Myrtle, Tom’s mistress. Nick describes this valley as being: â€Å"about half way between West Egg and New York... a fantastic farm where ashes grow like wheat into ridges and hills and grotesque gardens† (27). The co...

We Are Made of Star Stuff

We are â€Å"star stuff†. Discuss in detail our connections to the stars as established by modern astronomy. Modern astronomy has allowed us to understand how the universe functions and also provides the answers to some of the big questions. Questions like the origin of the universe and origin of life itself. It tells us that stars are the cosmic furnaces where all most all the building blocks of life and planets were synthesized. Lighter, basic and abundant elements like hydrogen and helium were formed during the Big Bang.During Big Bang, space expansion cooled the early energy dominated universe and a lot of energy transformed into matter. These basic elements were then able to create the early stars and also the stars of today. Inside of these stars lighter elements fused to release large quantities of energy and in the process of doing that converted hydrogen and helium into heavier elementary particles. Such elements would be deposited in the core of the star and are spew ed out into surrounding interstellar space when the star dies an explosive death.These newly synthesized heavy elements are essential for life to begin and evolve. 1 Hydrogen, helium and a little bit of lithium were made in the Big Bang. Hydrogen, the most abundant element accounted for around 75% of the matter, followed by helium at 25%. 2 Large quantity of these primordial gas formed clouds and such clouds were then condensed by local gravity to form the very first stars that lit up the dark skies of early universe. 3 As the baby stars contracted, temperature in the core rose to extreme level triggering nuclear fusion/hydrogen fusion.Nuclear fusion is a process in which two or more atoms fuse to synthesize heavier atom and this process of fusing releases large quantities of energy. 4 All the ingredients/elements needed to make the earth and all life forms on earth were created in the cores of stars. 5 These ingredients are then released out of the core of star into the surrounding when the giant star dies an explosive death known as the supernovae. This phenomenon occurs only to stars that are very big. Elements of up to iron can be made in a star and heavier than iron elements are produced in the supernovae. At least six of these essential elements compose life on earth and they are carbon, hydrogen, oxygen, nitrogen, sulphur and phosphorous. 8 Almost all life forms on earth are carbon based. This applies to the smallest living organisms (with exception of the new Inner core of a star7 discovery of arsenic based bacteria) to the biggest – the blue whale and all the living plants. They all have the same basic building blocks in their DNA. 9 Those building blocks are the essential elements.All of the rocky and metallic materials that made up our planet, the iron that runs in our blood, the calcium in our teeth and bones10, oxygen atoms that form water after combining with hydrogen, and, nitrogen and oxygen atoms that make up most of the atmosphere of earth are all products of stars billions of years ago. 11 As you can see in the picture above all of the heavier elements (above H and He) and including helium are made by the stars. The elements shown on the cross-section of the picture form heavier elements, they make up all the elements we discovered so far; the elements on the periodic table.Stars begin its life mostly made out of hydrogen and helium. The breakdown of hydrogen and helium in our sun is seventy percent and twenty eight when it started its life. 12 The building of heavier elements begins with hydrogen. Hydrogen is taken four at a time to form a single atom of helium. This process goes on for ninety percent of a stars’ life. When a star runs out of hydrogen, it starts fusing helium atoms to stay alive (producing energy to fight its own immense gravity from causing itself to collapse). Three atoms of helium are fused in the process of nuclear fusion to form an atom of carbon.As the process of fusing moves to n ext heavier atoms the duration of fusion process of newer atom becomes a lot shorter because for fusing atoms higher than hydrogen the number of available atoms for fusing is far fewer than the number atoms available when the star was fusing hydrogen for example. Next in line is oxygen. Adding one more helium to the carbon makes oxygen. Nitrogen is also made in the stars. 12 Without oxygen life as we know cannot survive. This process goes onto making silicon and iron. Nuclear fusion stops at iron because temperatures in star don’t reach high enough to fuse iron.So how do the elements heavier than iron form? The answer to this question lies in the size of the star. Only big stars (much bigger that our sun) are capable of producing a supernovae. Only such a catastrophic explosion can break the boundary set by iron and produce heavier atoms to fill the rest of the periodic table of elements. From the dusts and particles leftover of dead stars combined together to form asteroids and comets. Asteroids clumped together can form planet core. So life on earth basically began with the basic material that was available.These material/large molecules essential for the formation of living cells are proteins, carbohydrates (sugar), fats, and nucleic acids. It’s been found that meteorites contains essential stuff like amino acids (proteins made of amino acid), sugars, fatty acids (building block of fats), and bases for nucleic acids. For instance, the Murchison meteorite that crashed in Australia in 1969 is found to contain chains of fatty acids, different types of sugars, all five nucleic acid bases, and more than 70 kinds of amino acids (life forms use only 20 amino acids). 3 â€Å"We are star stuff â€Å"in the unforgettable words of Dr. Carl Sagan. The atoms that made up our bodies are created in the innards of stars that died many aeons ago. The planet we live on is made up materials like iron, silicon and carbon, etc are all forged in the natureâ€℠¢s grandest factory we know as stars. The air we breathe to stay alive is a product of stars. Stars also nourish life. The sun ray helps plants with photosynthesis; helps them break down carbon dioxide into organic compounds (sugars). Plants are a major source of food for humans and other creatures.Over the past few centuries (mainly 1900-2000) astronomy has made many eye opening discoveries; about the origin of the whole universe, our fate, and that we human are not the centre of the universe. It encourages humility in us and makes us better understand our connections the cosmos. References 1. Carl Sagan (No Date). Cosmos-We are Star Stuff Available: http://www. youtube. com/watch? v=0UR2L_4ic6Y&feature=related 2. Lawrence Krauss (3-27-2009). Life, the Universe and Nothing lecture Available: http://www. youtube. com/watch? =rdvWrI_oQjY [2011-04-04] video start at 51:11-52:16minutes 3. Dr. Tony Phillips (7-18-2000). X-ray Star Stuff [online] Available: http://science. nasa. gov/sc ience-news/science-at-nasa/2000/ast18jul_1m/ [2011-04-04] 4. Wikipedia-Nuclear Fusion (no date). [online] Available: http://en. wikipedia. org/wiki/Nuclear_fusion [2011-04-04] 5. Sam Neill (presenter) (no date). Space with Sam Neill Available: http://www. youtube. com/watch? v=0zU1F6liZKo [2011-04-04] 6. =3 7. Mike S (12-7-2010). Science & Religion #8: We are all made of stars online] Available: http://www. wheatandtares. org/2010/12/07/science-religion-8-we-are-all-made-of-stars/ [2011-04-04] 8. Jason Palmer (12-2-2010). Arsenic-loving bacteria may help in hunt for alien life [online] Available: http://www. bbc. co. uk/news/science-environment-11886943 [2011-04-04] 9. Dan Solomon (12-2-2010). NASA Announces Arsenic Based Life Forms- But Are They Going To Kill Us? [online] Available: http://www. asylum. com/2010/12/02/nasa-announcement-aliens-arsenic/ [2011-04-04] 10. Korintherne (7-7-2006).Reasons & Facts: Cosmic Connection [online] Available: http://curezone. com/blogs/fm. asp? i =982845 [2011-04-04] 11. Dayanara (MA) (No Date). We are star stuff†¦ [online] Available: http://www. free-daily-motivational-self-improvement. com/we-are-star-stuff. html [2011-04-04] 12. Neil Tyson (presenter) (No Date). Elements: Forged in Stars Available: http://www. youtube. com/watch? v=uKqvjEE0wFg [2011-04-04] 13. Leslie Mullen (9-5-2005). Building Life from Star-Stuff [online] Available: http://www. astrobio. net/exclusive/1702/building-life-from-star-stuff [2011