Literature Review on Metamaterial

Literature Review on Metamaterial LITERATURE REVIEW ON METAMATERIAL The Left-Handed Metamaterial (LHM) has a few unique properties such as negative refraction and backward wave. In this chapter, the basic theories behind their unique properties are presented and some applications of LHM toward the antenna application are discussed. DEFINITION BACKGROUND OF LEFT-HANDED METAMATERIAL Electromagnetic Metamaterial can be defined as artificial effective homogenous electromagnetic structures with unusual properties not readily found in nature . A Left-Handed Metamaterial (LHM) [17][18]or Double Negative Metamaterial (DNG) is an electromagnetic Metamaterial that exhibit negative permittivity and permeability. This phenomenon can be characterized by the negative refraction index and the anti-parallel phase velocity which is also known as backward wave. HISTORY OF LEFT-HANDED METAMATERIAL (LHM) The initial work on LHM was started by V. G. Veselago from the Lebedjev Physical Institute in Moscow when he made a theoretical speculation of this artificial material that exhibit negative permittivity and negative permeability. Veselago speculation remain silent for 29 years until 1996, J. B. Pendry from Imperial College London and his co-author form GEC-Marconi published a paper about artificial metallic construction which exhibit negative permittivity and negative permeability. Following this interesting discovery, in 2001, the first experimental verification was made by Shelby, Smith and Schultz at the University of California. The left handed material structure consists of split ring resonator and thin wire inspired by J. B. Pendry as shown in figure 3.1. Figure 3.1: First experimental LHM structure Since the introduction of LHM twelve years ago, many researchers were interested in investigating this artificial material and several of them was using LHM to improve the properties of the microwave devices such as antennas and filters. Many papers have been published regarding the LHM integrated with antennas and their properties have been analyzed. The focusing affect of LHM has made a low gain antenna becomes directive and have an increment of gain. FEATURES OF METAMATERIAL Improvement in the performance of a small monopole antenna, realized via the use of an ENG envelope that compensates for its high capacitive reactance. Lens effect produced by DNG slabs that are useful for enhancing the directivities of a small antennas, e.g. dipole and Microstrip patches, by collimating the cylindrical waves emanating from these antennas and focusing them at infinity. Creation of super lenses which can have a spatial resolution below that of the wavelength. UNIQUE PROPERTIES OF LEFT-HANDED METAMATERIALS Negative Refractive Index: For conventional material with à °Ã‚ Ã…“â‚ ¬r > 0 and à °Ã‚ Ã…“†¡r > 0, the refractive index is givenà °Ã‚ Ã¢â‚¬ËœÃ¢â‚¬ º=√à °Ã‚ Ã…“†¡Ãƒ °Ã‚ Ã¢â‚¬ËœÃ… ¸Ãƒ °Ã‚ Ã…“â‚ ¬Ãƒ °Ã‚ Ã¢â‚¬ËœÃ… ¸, so that the conventional material possesses a positive refractive index. Yet, Left-handed Meta-material has both negative permittivity (à °Ã‚ Ã…“â‚ ¬r à °Ã‚ Ã…“† r à °Ã‚ Ã…“† The Snells law is described as ..3.3.1(a) Where à °Ã‚ Ã…“Æ’2 the incident is angle and à °Ã‚ Ã…“Æ’1 is the refraction angle. Supposing medium I and medium II are conventional materials with à °Ã‚ Ã¢â‚¬ËœÃ¢â‚¬ º1>0 and à °Ã‚ Ã¢â‚¬ËœÃ¢â‚¬ º2>0 respectively, them refracted light will be bent with positive ÃŽ ¼ with the normal line OO as indicated by the 4th light ray in figure3.2. If medium II is a left-handed meta-material with à °Ã‚ Ã¢â‚¬ËœÃ¢â‚¬ º2 Figure 3.2 Passage of a light ray through the boundary between medium I with positive refractive index à °Ã‚ Ã¢â‚¬â„¢Ã‚ Ãƒ °Ã‚ Ã… ¸Ã‚ >0 and medium II with refractive index à °Ã‚ Ã¢â‚¬â„¢Ã‚ Ãƒ °Ã‚ Ã… ¸Ã‚ . The phase velocity expression à °Ã‚ Ã…“-à °Ã‚ Ã¢â‚¬ËœÃ‚ =à °Ã‚ Ã¢â‚¬ËœÃ‚ Ãƒ °Ã‚ Ã¢â‚¬ËœÃ¢â‚¬ º à °Ã‚ Ã…“† shows that the phase velocity à °Ã‚ Ã…“-à °Ã‚ Ã¢â‚¬ËœÃ‚  is related to the index of refraction , here c denotes the speed of light in a vacuum. For LHM has negative refractive index (à °Ã‚ Ã¢â‚¬ËœÃ¢â‚¬ º à °Ã‚ Ã…“† Figure 3.3: The energy flow and group velocity propagate forward in LHMs but the phase velocity is backward Veselago also predicted that the Doppler and Cerenkov effects will be reversed in LHM. An approaching source will appear to radiate at a lower frequency and charged particles moving faster than the speed of light in the medium will radiate in a backward cone, not a forward cone. These two exotic properties are not employed in this Dissertation, however details about them can be found in. LEFT-HANDED METAMATERIAL STRUCTURE The first LHM structure consists of split ring resonator (SRR) and thin wire (TW) or capacitance loaded strip (CLS)[19]. The SRR exhibits the negative value of permeability and the CLS and TW exhibit the negative value of permittivity in a certain range of frequency. Split Ring Resonator (SRR) (b) Figure 3.4: (a) Circular split ring resonator and (b) Square split ring resonator A split ring resonator (SRR) as shown in figure3.4 is part of the LHM structure that exhibit negative value of permeability. If the excitation of the magnetic field is perpendicular to plane of the structure, this will generate the magnetic dipole moment. The SRR is a highly conductive structure in which the capacitance between the two rings balances its inductance . The SRR induces high current density structure which creates a large magnetic moment. Capacitance Loaded Strip (CLS) and Thin Wire (TW) (a) (b) Figure 3.5: (a) Capacitance loaded strip (CLS) and (b) Thin wire (TW) figure 3.5(a) shows the capacitance loaded strip (CLS) and figure 3.5(b) shows the thin wire (TW). CLS and TW would produce strong dielectric like response. As electric field propagates parallel through the TW or CLS, it will induce a current along them. This will generate an electric dipole moment to the structure and exhibit a plasmonic-type of permittivity frequency . CST SOFTWARE CST was founded in 1992 byThomas Weiland. The main product of CST is CST STUDIO SUITE,which comprises A various modules dedicated to specific application areas. There are modules for microwave RF applications, summarized in CST MICROWAVE STUDIO, low frequency (CST EM STUDIO), PCBs and packages (CST PCB STUDIO), cable harnesses (CST CABLE STUDIO), temperature and mechanical stress (CST MPHYSICS STUDIO) and for the simulation of the interaction of charged particles and electromagnetic fields (CST PARTICLE STUDIO). All modules are integrated with a system and circuit simulator (CST DESIGN STUDIO). The version is CST Microwave Studio 2010. Figure 3.6 CST Microwave Studio In next chapter, the design of the LHM is discussed and the procedure in the simulation of the LHM using CST software is elaborated thoroughly. Besides that, the design of the Metamaterial structures, patch Microstrip antennas are also elaborated. CST Microwave Studio is a fully featured software package for electromagnetic analysis and design in the high frequency range. It simplifies the process of inputting the structure by providing a powerful solid modeling front-end which is based on the ACIS modeling kernel. Strong graphic feedback simplifies the definition of Your device even further. After the component has been modeled, a fully automatic meshing procedure (based on an expert system) is applied before the simulation engine is started. The simulators feature the Perfect Boundary Approximation (PBAâ„ ¢ method) and its Thin Sheet Technique (TSTâ„ ¢) extension, which increases the accuracy of the simulation by an order of magnitude in comparison to conventional simulators. Since no method works equally well in all application domains, the software contains four different simulation techniques (Transient solver, Frequency domain solver, Eigenmode solver, Modal analysis solver) which best fit their particular applicat ions. The most flexible tool is the transient solver, which can obtain the entire broadband frequency behavior of the simulated device from only one calculation run (in contrast to the frequency stepping approach of many other simulators). This solver is very efficient for most kinds of high frequency applications such as connectors, transmission lines, filters, antennas and many more.

Rich Resource Countries and Economic Growth

Rich Resource Countries and Economic Growth Vikram Mashru Why have resource rich economies so frequently failed to achieve sustained economic growth? In the late 20th Century, Sachs and Warner extensively documented the negative correlation between a country’s resource endowment and their rate of economic growth.[1] They focussed on point-source natural resources because they can be easily traded and exploited by others. Their paper built upon previous research leading to the so-called resource curse being widely accepted. However, the explanations of the phenomenon are disputed with the constantly fluctuating prices of natural resources being a possible explanation. In addition to this, other industries could be crowded out by the export-based natural resource industry an appreciation of the real exchange rate could also be problematic. Yet, the quality of a country’s institutions could be a better explanation for low levels of economic growth because they determine the way in which natural resources are exploited and consequently the impact the natural resource shave on the economy as a whole. The revenue brought about by natural resources tends to be extremely volatile because natural resources have a low price elasticity of supply as production cannot be altered easily altered without incurring large costs.[2] Oil prices are particularly variable because they are often affected by political instability, natural disasters and economic downturns. This volatility is problematic because it leads to uncertainty in the country and exposes the country’s economy to changes in the world price in commodities. This problem may be exacerbated if the country has not economically diversified and the majority of a country’s foreign currency comes from exports of natural resources. The fluctuating prices can lead to a risky cycle where the government spends a lot when prices are high, but have to introduce harsh austerity measures when prices drop because they can no longer afford to maintain their expenditure.[3] The unpredictability of the government’s fiscal poli cy may make the country less attractive to foreign investors. A dependence on a volatile primary product has been shown to inversely correlate with investment in education, foreign direct investment and overall economic growth[4]. However, if fluctuating prices were the only cause of the low rates of economic growth there would certainly be periods of significantly higher growth when prices are high. Thus, fluctuating prices alone are not enough to explain the natural resource curse. Dutch disease is a theory that suggests the discovery of resources in a country may lead to a decline in export-oriented industries and particularly the manufacturing sector. The export of natural resources like oil could lead to an appreciation in the real exchange rate because of the increase in demand for the currency.[5] The high exchange rate could harm the manufacturing industry as their exports would consequently be more expensive than before. Thus, the manufacturing sector would be less competitive on the global market and could lead to lower economic growth in the country. The term itself was originally used to describe this process after it happened in the Netherlands after the discovery of natural gas in 1959, but it has since been observed elsewhere.[6] Russia, for example, is one of the largest exporters of natural resources in the world and has experienced an increasing real exchange rate. Oomes and Kalcheva demonstrate that Russia has also displayed the other three maj or signs of Dutch disease including a slowdown of the manufacturing industry, an increase in service sector growth and an increase in wage growth. While this may not be enough to conclusively state that Russia has fallen foul of Dutch disease, it does appear that likely that the country has experienced it to some degree. Furthermore, industries that compete with imports may be adversely affected as the stronger exchange rate would increase the purchasing power of consumers. The country’s labour and capital may be redistributed towards local non-tradeable sectors and the country may then lose out on the benefits of having a strong manufacturing sector such as technological progress and good management.[7] There were significant fears that the artificially high exchange rate from North Sea oil revenue would have this impact in the UK if corrective policies were not enacted.[8] On the other hand, Dutch disease appears to be an inadequate explanation for Nigeria’s poor economic performance because the sustained increase in price of tradable goods in the 1980s and early 1990s did not improve their economic performance and because the decline of the agricultural sector was offset by the growth of the public sector.[9] Furthermore, Norway’s extraction of oil from the early 1970s has hugely improved its economic growth and allowed it to catch up with Denmark and Sweden. Its rapid growth suggests that Dutch disease is not an economic inevitability and that there are other important factors. Larsen argues that Norway’s success where so many other countries have failed is indicative of the superior quality of its pre-existing institutions, an attribute that most primary product dependent countries do not have.[10] Norway’s government explicitly discussed the problems natural resources posed in parliament and used policies to counteract t hese negative impacts. For example, they tried to protect the economy from excessive demand and exchange rate appreciation by establishing a Petroleum Fund abroad and paying back foreign debts.[11] The discovery of natural resources often leads to disputes over the ownership of them and rent-seeking behaviour such as civil wars which may crowd out other beneficial behaviour. Nigeria demonstrates the institutional problems with the discovery of a large pool of natural resources. Corruption and waste has ruined the country and prevented the large quantity of oil in the country from making a positive contribution to the national economy. Conflicts over ownership of oil fields such as the Biafran war of the 1960s and successive military dictatorships have not only disturbed the extraction of oil but have disrupted unrelated economic activity.[12] Moreover, poor institutional quality leads to a lack of trust in government especially when corruption is widespread and widely known about. Multinational corporations respond to problems of corruption by taking part in enclave development where they minimise their activity in the country so that they can avoid all the problems associated with poor institutions. Large firms extract oil from these countries but process it elsewhere, which means that there is little value added in the resource rich country. Consequently, countries like Nigeria are forced to rely on exports of raw materials and there is little value added to commodities in their economies so little profit is made within the country. Overall, it seems that oil is not enough on its own to create economic and civil disturbances, but instead exacerbates pre-existing issues. In the Niger Delta, oil was discovered amidst a backdrop of weak institutions and thus conflicts and exploitation follows.[13] However, part of the prob lem is that the discovery of oil and consequent accumulation of wealth at the top of the political hierarchy, as Birdsall points out, may hinder the development and improvement of institutions that could have otherwise taken place.[14] The explanation for resource rich countries lack of growth is particularly complex. The volatility of raw material prices are in part to blame for this because they lead to uncertainty in the economy and exposes the country to price changes on the global market. This is made worse by the following unpredictability of government fiscal decisions. However, the volatility is not enough to truly understand why these countries have such slow rates of economic growth. The Dutch disease is a slightly better explanation, with the export of raw materials leading to an appreciation in the exchange rate. However, multiple examples like Norway show that Dutch disease can be avoided through careful macroeconomic planning on the part of the government. This demonstrates that the most important explanation is the quality of institutions at the time of resource discovery. If they are weak, like Nigeria’s, natural resources can lead to civil conflict and economic hardship. Yet a country with s trong institutions like Norway allows natural resources to boost prosperity and economic growth. BIBLIOGRAPHY Birdsall, N Subramanian, A. (2004) Saving Iraq From Its Oil. Foreign Affairs 83.4 Larsen, E.R. (2004) Escaping the Resource Curse and the Dutch Disease? Statistics Norway, Research Department Oomes, N. Kalcheva, K. (2007) Diagnosing Dutch Disease: Does Russia have the Symptoms? IMF Working Paper The Dutch Disease (1977) The Economist Sachs, J.D. Warner, A.M. (1995) Natural Resource Abundance and Economic Growth. National Bureau of Economic Research Working Paper Sala-i-Martin, X. Subramanian, A. (2003) Addressing The Natural Resource Curse: An Illustration From Nigeria. National Bureau of Economic Research Ramey, G. Ramey, V.A. (1995) Cross-Country Evidence on the Link Between Volatility and Growth. American Economic Review Watts, M. (2004) Resource Curse? Governmentality, Oil and Power in the Niger Delta, Nigeria. Geopolitics 1 [1] Sachs Warner, Natural Resource Abundance and Economic Growth [2] Oomes Kalcheva, Diagnosing Dutch Disease, p.7 [3] Birdsall Subramanian, Saving Iraq From Its Oil [4] Ramey Ramey, Cross-Country Evidence on the Link Between Volatility and Growth, pp.1138-1151 [5] Oomes Kalcheva, Diagnosing Dutch Disease, p.7 [6] The Economist, The Dutch Disease, pp.82-83 [7] Birdsall Subramanian, Saving Iraq From Its Oil [8] Forsyth Kay, The Economic Implications of North Sea Oil Revenues, p.17 [9] Sala-i-Martin Subramanian, Addressing The Natural Resource Curse, p. 16 [10] Larsen, Escaping the Resource Curse and the Dutch Disease? [11] Larsen, Escaping the Resource Curse and the Dutch Disease? P.13 [12] Sala-i-Martin Subramanian, Addressing The Natural Resource Curse, pp.12-15 [13] Watt, Resource Curse? pp.73-76 [14] Birdsall Subramanian, Saving Iraq From Its Oil

Worldwide Denial of Global Warming Essay -- Essays Papers Environment

Worldwide Denial of Global Warming As human beings, we need to respect the environment in which we live. This is important to greater our future and that of others to follow. Very few people realize that their daily behaviors have a direct impact on the environment, the atmosphere in particular. By emitting harmful gasses into the air on a daily basis is one of the main reasons of such climate changes. People notice such changes and yet don't do anything to help the situation. Wee don't realize the risks that such changes in temperature pose. Rather than trying to conserve gas or taking cold showers, we still go on through our daily activities reluctant to change that will in time benefit the earth. By conserving gas and other harmful emissions like oil and electricity we are lessening the risks of global warming. By recognizing the potential risks, it will become easier to find practical solutions. There have been some steps toward conserving gas. Hybrid cars are becoming more and more popular among Americans and as well as other consumers. These cars will use less gas to get more mileage. Honda, is taking .steps toward lowering harmful gasses into the atmosphere by introducing these futuristic cars to the American public The main purpose of these cars is to reduce the dependency on gas for automobiles. As cheap college students, we all know how expensive gas is today, wouldn?t you rather save all the money you spend on gas and use it for other things like beer, clothes or other recreational purposes. The effects of global warming will have a lasting impact on the entire world. All people in all nations will experience unfortunate outcomes if something isn?t done soon. ... ...ed are called ?renewables.? ?Renewable energy technologies use solar, wind, hydropower, geothermal, or biomass energy? (United States EPA). Such new technologies are clean compared with traditional energy technologies, which burn fossil fuels such as oil and gas and can be used to solve many environmental problems. Work cited Frazier, Ian. ?As The World Burns.? Mother Jones March/Apr. 2003: Vo.28. 2: Academic Search Premier. EBSCO Marshall, George and Mark Lynas. ?Why We Don?t Give A Damn.? New Statesman 21 Jan. 2003: 132. 4666: 18+.Academic Search Premier. EBSCO Schulz, Kathryn. ?Global Warming Right Now.? Rolling Stone 20 Feb. 2003: Iss.916 Academic Search Premier. EBSCO United States Environmental Protection Agency (EPA). Renewable Energy: The Road from Global Warming To a Cleaner Future Office of Policy. September 1998.

Female Literature Deserves the Same Regognition as Traditional Male Lit

Female Literature Deserves the Same Regognition as Traditional Male Literature Literary critic, Jane Tompkins targets the "male-dominated scholarly tradition that controls both the canon of American literature - and the critical perspective that interprets the canon for society" (502), in her exploration of the canonical exclusion of Kate Chopin's The Awakening, written in 1899, and Charlotte Perkins Gilman's 1892 short story, "The Yellow Wallpaper." Tompkins further notes that "the tradition of Perry Miller, F.O. Matthiessen, Harry Levin, Richard Chase, R.W.B. Lewis, Yvor Winters, and Henry Nash Smith has prevented even committed feminists from recognizing and asserting the value of a powerful and specifically female novelistic tradition" (502-3). Tompkins' criticism of the scholarly tradition not only asserts the existence of a male-dominated literary paradigm and exclusivity but, with this literary 'gate keeping', also questions how tradition becomes imprinted upon us so as to color our judgment. Tradition becomes the constant, the thing we write, read, rebel against and, interestingly, the thing we supplant with a new tradition once we are excluded from the established boys' club. But how does a so staunchly established tradition, which determines the inclusion and exclusion of literary works, come to be? Tompkins posits the existence of a male-centered agenda that masks its biases as "universal standards of aesthetic judgment" (503). These "universal standards" of aesthetics are subsequently biased against domains which have traditionally been declared feminine. Tompkins indeed contends that "twentieth-century critics have taught generations of students to equate popularity with debasement, emotionality with ... ...knowledging and paying homage to the powers that we keep in power, all in the name of tradition. Tradition is a paradox, for it oftentimes seems bigger than us; our own creation becomes a wall, seemingly insurmountable and impenetrable, that indeed crumbles by our own questioning and refutation. Works Cited Baym, N. (1978). Woman's Fiction: A Guide to Novels By and About Women in America 1820 – 1870. Ithaca: Cornell U.P. Bloom, H. (1975). A Map of Misreading. New York: Oxford U.P. Kolodny, A. (1980). A map for rereading: Or, Gender and the Interpretation of Literary Texts. New Literary History: A Journal of Theory and Interpretation 11, 451-67. Tompkins, J. P.(1985) Sentimental power: Uncle Tom's cabin and the politics of literary history. Sensational Designs: The Cultural Work of American Fiction, 1790-1860, New York: Oxford U.P.

The Transformation of Hong Kong Essay -- Personal Narrative Writing

The Transformation of Hong Kong A drastic change came over Hong Kong during my supposed three month long business trip. This was not my first time in Hong Kong since I work for Walt Disney Imagineering and my team of engineers had been spending years planning the creation of the fourth Disney resort in Hong Kong. I had arrived in Hong Kong in mid-February 2003. My coworkers and I were staying at the Island Shangri-La which is located in the heart of Hong Kong, overlooking Victoria Harbor. My first week and a half in Hong Kong could be classified as normal. Restaurants were packed when I would go to dinner with coworkers. Starbucks was bustling in the morning as I got coffee on my way to work, and Pacific Place, an amazing entertainment and shopping complex on the Island, was full of people from open to close. The only thing that might have seemed unusual to the outsider was the occasional individual wearing a surgical mask, which having spent a lot of time in Hong Kong and Japan, I came to realize was common in Asia. If an individual was sick they protected themselves and others by wearing the mask. All in all, this appeared as if it was going to be a typical stay in Hong Kong until the first week of March when things changed. I distinctly remember the news reports which appeared about this mysterious disease that had appeared in the Guangdong Province of China beginning in November 2002. I remember my daughter worrying about me traveling to Asia with this unknown "killer." Yet, I reassured her that there was nothing to worry about since Hong Kong was quite a distance away from Guangdong Province. It turns out, that I should have taken my daughter a bit more seriously because, in hindsight, I know that on F... ...on again if there was a major world health concern. It is hoped that if SARS occurs again, as it has in isolated cases, that the societies of the world will not be thrown into as drastic of an upheaval as I experienced in Hong Kong in the late winter and spring of 2003. Now that the threat of the disease is past, Hong Kong is much more like it should be. When my wife traveled with me on my most recent business trip she did not have to face the health checkpoints at the airport nor the deserted streets and paranoia of two years ago. Life in Hong Kong appears "normal" now only with the memory of the modern epidemic which took some of its citizens' lives. The world now contains 774 fewer people due to the progress of the recent epidemic, SARS. * www.cdc.gov/ncidod/sars/faq.htm Sources of Information: www.cdc.gov/ncidod/sars/ www.sarsreference.com/

The Various Shades of George Bernard Shaw

Topic 1: What is Andragogy and how is it relevant to training and development? Andragogy is the term used to describe ‘the art and science of teaching adults’ (Delahaye, 2011). It focuses on the post-school vocational education, where the adults learning needs are the main importance and also should allow them to take responsibility for their own learning (Delahaye, 2011). In this sense, the differences between andragogy and pedagogy are related to not only the way content is taught, but also the progression of learning.Andragogy is relevant to training and development as concerns with the practical issues of trainers are coming into existence in relation to an effective way of using resources and the most suitable training methods (Jones, 1980). Therefore, as advances in knowledge are increasing, training and development programs need to be constantly altered and maintained to ensure that employees (adults) are processing this information. Andragogy is conceptualised in literature through conducting research to address what exactly is andragogy and what are the main issues in accordance to training and development.In relation to police training and development, police officers valued four distinct areas – engagement, practicality, affiliation, and efficiency (Olivia, 2009). Firstly, police officers valued classrooms that were ‘interesting and inspiring’ (Olivia, 2009), as they preferred trainers who were enthusiastic and engaged their students. Police officers also preferred the content being delivered that can be applied to their own real-life experiences on the job. Officers really emphasised the importance of the classroom environment in relation to social interaction and classroom layout.Police officers that were involved in the training and development session wanted a chance to interact with others, including the trainer. This allowed for them to learn from eachothers’ experiences (Olivia, 2009). It was also report ed that the classroom should be laid out in a manner that provides the trainer the opportunity to deliver the content in an ‘efficient and effective manner’ (Olivia, 2009). They preferred classes that were well managed in relation to the time period. Therefore, it is demonstrated in research and results that andragogy is all about the motivation and preferences of the student.It is also mentioned that andragogy is ‘a learning theory, not a teaching theory’ (Mc Auliffe, 2009). Andragogy is explained through the ‘andragogical model’ composed by Knowles (Mc Auliffe, 2009). This model addresses the issues on the learning process of adults. There are four issues that make up this model. Firstly, it is important to explain to the student why they need to learn a particular topic. Secondly, the trainer has to show the learner how to direct themselves through the content, so that they can take responsibility and be motivated to learn.The content also h as to enable the student to be able to relate their own experience to the components being delivered. An adult learner needs to have a ‘life-centered, task-centered or problem-centered’ (Mc Auliffe, 2009). Adults prefer to learn when they are ready and motivated to do so. Through conducting research and going back to the words of academics, it is explained in literature what andragogy is (in a practical sense) and its utter most importance in training and development programs. There are many differences between andragogy and the way children learn. They differ in relation to certain characteristics about learning.For example, the need to know, the learner’s self-concept, the role of experience, the readiness to learn, the orientation to learning and motivation (Delahaye, 2011). It is shown that children are being spoon fed content in a controlled environment, where they are more influenced by external factors. In andragogy, it is all about the needs, the experien ces and self-motivational factors of the adult. For contrast, the pedagogical model developed by Knowles (Mc Auliffe, 2009) involved the communication of knowledge and skills, where ‘the teacher decides in advance what knowledge or skill needs to be transmitted’ (Mc Auliffe, 2009).It is then that it is up to the teacher when and how information is going to be taught. Pedagogy is a teaching theory, not a learning one (Mc Auliffe, 2009). Andragogy is therefore the transition from school education to post-school education. Andragogical principles is a process of providing techniques and relevant resources to help adults obtain the knowledge and skills and also allow the trainer to prepare to involve them in the learning process.Therefore for adults to develop on their skills and knowledge, it is important that they want to learn and are motivated to do so. Without this, there would be no progression. In connection with the design of the tutorial training session, I believe that andragogy is going to be very useful. In a classroom, at one point in class, a majority of the group get ‘bored’ and drift off in their own world. So therefore, it is important to ensure to come up with an activity that everyone can have fun with and would want to participate in.With the importance of ensuring that students know why the need to learn, how they are going to go about learning and the amount of relativeness to their past experiences, the training session needs to be something that everyone can relate to. Everyone needs to be involved in the process of learning the desired knowledge and skills. Andragogy is all about the culture, systems and structures that make up the adult learning environment (Nicholas, 2008), which is key for a successful training session. In conclusion, Andragogy is all about the needs and experiences of the learning process of the adult.It transcends from pedagogy, in a sense that the learning process has moved focus from a spoo n fed controlled environment, to a different environment where the progression of learning is the student’s responsibility. This is relevant and very important to training and development, because, in reality, adults cannot be spoon fed the knowledge and skills needed in the working environment. They need to be more motivated and be informed of the reasons and procedures of training and development programs in order to progress and accept that they need to learn.

Leadership interview Essay

Our root interviewed five leading varying from caper owners to Sr Vice Presidents of different organizations. As we began to analyze the interviews from our leadinghip we noniced much common nationals than differences amongst them. The first common theme was that three out of the five leading tell that they defined themselves as participative lead entitles. They functi adeptd as a facilitator rather than app arntly issuing sanctifys to those that they project. The leaders encouraged brisk participation from their squads every(prenominal)owing them to express their opinions and be able-bodied to demonstrate their abilities. Our leaders participative leadership styles exclusivelyows the skills of all their team up members to be utilized in make suggestions and findings but the leader is alleviate responsible for making the final close. This entrust allow everyone to prepare their gossip and tender a well rounded decision that will create a affirmatory pur lieu which will only acquire profitability to the organization. As the traits theory of leadership, some of our leaders concord that leaders are natural with leadership characteristics. They athe likes of agreed that on that point are genuine characteristics that flock be streng thened and developed by the leaders through their childhood years, beliefs, the milieu in which they surround themselves, the ability of how they learn, and close to importantly how they react when being provided with feed dorsum. leadership can enhance and learn certain characteristics through advice, observation of others, and their own experiences. Everyone is born with certain characteristics that will develop into strengths and weaknesses. A good leader will give away these characteristics and apply then into their leadership capacity. As cold as the common characteristics that the leaders cute in their employees commitment to the great deal of the organization was among the most common. B y having the very(prenominal) quite a little people have a better understanding of the future environment where they are operating, a better understanding of what the organization must be standardized in the future to be successful, a common goal for building team work and a common reverie en for sures that everyone makes decisions based on the same direction. Our leaders agreed that result driven employees were another(prenominal) characteristic that they value. Our leaders explained that they like their teams to adopt forth not only the line but possible solutions that will encourage make the best decision for the team and at the same term enhancing theteams decision making skills. Trustworthiness and inter psycheal skills were too common characteristics that our leaders stated that they valued in their employees. Interpersonal skills are inevitable on a daily soil which would include verbal communication, non-verbal communication, listening skills, problem-solving, a nd decision making.One of the leaders stated that the biggest quarrel day to day is people and retentivity that people are people. This is when having a person with good interpersonal skills can be very useful to the organization. When it came to the decision making process our leaders stated that they like to take their time in making the correct decision but at times when time is limited they fate to follow their instinct based decision. When time is not of the essence our leaders stated that they make their decisions in the following go 1) Identifying and clarifying the issue in dubiousness this gives them an opportunity to gather facts and ask questions approximately the issue in question 2) viable solutions or options 3) Process the information that has been provided to them and then finally 4) Implementing the decision. This process allows the leaders to build up the communication between the leaders and their team. This goes back to making a decision where everyone ha s input based on the vision and last of the organization. Consistency with solutions to issues will bring organic structure when the need for a resolution arises deep down an organization. You will have the ability to extend issues equally and know that you have through your due diligence in conclave as much facts and data needful to make the right decision.One issue that our leaders agreed is that they lead by example. Leading by example is one of the strongest ways to show your dedication the team. As a leader you have to immortalize that actions speak louder than words. Our leaders know that treating our employees with truthfulness and respect in another pauperization for their employees. Leaders understand that how they treat a person is the same way that the person will treat them. As far differences between leaders there were not noticed during the interview process there were not any that were noticeable. They all seemed to have the same values when it came to their teams or departments. They all expressed that they have confidence in the teams and the people that work with them. The answers provided by the leaders tie into what we have learned in class because as the interviews were being conducted we looked at leadership styles of each individual leader. We also analyzed the examplesthat they provided as they explained their styles and made sure that the style matched the examples that they were providing us.For example, in the case where our leaders stated that they considered themselves Participative style we looked for examples that go acrossly matched the style like the leaders being accessary of their teams and the input. All leaders mentioned a clear vision of the organization that they support. In order for our leaders to dribble that others follow that vision that would need to understand it themselves. It was very fire to see that all the leaders had a vision that coincided with the value system of the organization. The most imp ortant lesson that we learned about truthful leaders is that leaders will support and help strengthen characteristics of those that are unforced to follow to the vision of the organization. We have a better understanding of what leaders expect from their teams and will make the team be effective.