Sunday, March 15, 2020
Letter Essays - Run, 9, Free Essays, Term Papers, Research Papers Letter October 16, 2000 Mrs. Jensen 319 Bibb Graves Jacksonville, AL 362265 Dear Mrs. Jensen I attended Rome High School of Rome, Ga. Rome High School is about forty-five minutes from Jacksonville. Just head towards Piedmont, Al and then drive straight to Cedartown, Ga. The road signs will lead you there. My major is going to be Criminal Justice. I look forward to becoming a K-9 police officer. I chose JSU because I had a pole-vaulting contract and I also want to be on the number one drum line of the nation. I havent started either yet so I assume you could just call me another broke student running around having fun. There are many things I like about JSU. There are defiantly plenty of parties, not that I go or anything. Mainly I like the band. The band is the main reason that I came. At my high school I was a drummer. My high school band practically lives at JSU. JSU has the number one drum line in the nation, so from a drummers perspective where better to march for. The other reason I came to JSU you is to be close enough to home so I can go see my girlfriend every weekend. I really like this campus, everyone is very friendly and it isnt hard to find all of your classes. There isnt really any thing I dont like about JSU. It is a great college. I guess if I had to say there was something I would like, it would be the classes. College should just be a place that you go and live and hangout with people for a year. That way classes could be optional. Things I like and dislike about computers: I love using the Internet. I dislike slow computers. I dislike when you cant load something. I dislike not understanding why a computer does something. I like using computers to type (my handwriting is awful) I dont like loosing programs or papers And on Gateway computers I like the Go Back Program I like you class very much but I dont feel like I need to be there for anything except for the tests and when you give out homework assignments. I missed a few of you classes last week and I want to apologize. My car had broken down when I was at home so I was stranded for three days. Sincerely, Nick Steketee
Thursday, February 27, 2020
Multiple Intelligences and Online Learning - Essay Example This paper tends to explain the theory of MI in brief and explores its applicability in the emerging industry of online learning. Concept of Multiple IntelligencesÃ It was in 1983, the prominent professor and psychologist of Harvard University introduced his famous multiple intelligence theory, which thereby altered the educational perspectives of the entire world. Howard found that the traditional ways of testing for intelligence were not comprehensive enough or they simply biased to particular and rather small group of individuals. Evidently, the intelligence of learners is often measured based on their arithmetic skills and reading, writing excellence; and hence people with other areas of skills tend to lose attention and support (Ã¢â¬Ëwhat are multiple Intelligences?Ã¢â¬â¢). Howard proposed Ã¢â¬Ëeight primary intelligencesÃ¢â¬â¢ among which at least one or many can be found in every individual. He argued that a broader range of learning method is essential so as to det ermine the apt learning style for each individual regardless of his/her intellectual or physical weaknesses. The reason he found was that every individual may excel in one or more than one of the eight Intelligences, and therefore their skills are seldom inferior to that of others. At this juncture, a good educator is challenged to teach a child following the way it learns other than the way he (Tutor) preferred to teach. HowardÃ¢â¬â¢s intelligences include logical-mathematical, spatial, linguistic, bodily kinesthetic, musical, interpersonal, intrapersonal, and naturalistic. According to Gardner, intelligence refers to the ability to find and solve problems and create products of value in oneÃ¢â¬â¢s own cultureÃ¢â¬ (cited in Kramer, 2002, p. 46). MI in Online Learning As mentioned in the introduction, applying MI concept while developing e-learning strategy would increase learnerÃ¢â¬â¢s likeliness of experiencing positive result based on their MI potential. However, how to assimilate such an activity based program is the strategic challenge the educators have to meet in this regard. Varieties of technological applications have been invented to stimulate online learning interactions for the recent past. Evidently, designers have to be creative enough to apply the available tools appropriately. Although it is not possible to include specific activity for each learner, all learners would find some elements valuable if a variety of activities are well incorporated in the program. For instance, facilities like video conference, discussions, chats, interactive games, puzzles, use of music and spoken texts, graphs, visuals etc can be used to enhance the e-learning experience of the pupils regardless of their intellectual variance. To illustrate, in order for adding linguistic intelligence activities, tactics like online interviews, speaking tests, drafting e-mails, reading and writing articles, and writing literature reviews or book movie reviews can be cons idered. When it comes to online learning, selecting and evaluating MI software inventory is highly important. As McKenzie (2005) notes, by completing MI software inventory, one must be Ã¢â¬Ëable to determine the intelligence that each application supportsÃ¢â¬â¢ and Ã¢â¬Ëidentify those intelligences that need to be considered in future purchasesÃ¢â¬â¢ (p. 63). The content, interface, design, and documentation features of the
Tuesday, February 11, 2020
Compostion article - Essay Example Researchers have presented that basic research literacy courses are not appealing to students, and they usually have negative feelings towards it. The Human Resources Development in Canada had expressed that employers have found skills developed through research courses as vital for work (as cited in Shipwright et al., 2010, p. 574). The researchers were burdened of this need, and thus aimed to enhance learning in the said courses through the use of an online graphic novel called Citizen Researcher (CR). Through this multimedia, they intend to stimulate the studentsÃ¢â¬â¢ interest in research. Guided by these goals, there are four research questions formulated for this study: (1) What impact does CR have on studentsÃ¢â¬â¢ perceptions of their research literacy skills?; (2) What is the studentsÃ¢â¬â¢ level of satisfaction with the course content, design delivery method and learning activities?; (3) What are studentsÃ¢â¬â¢ experiences with CR?; and (4) What are the strengths, c hallenges and barriers associated with this new model of course delivery? (p. 576). These are ventured in order to determine the effects of the technology in the studentsÃ¢â¬â¢ learning. Although research literacy courses may be boring and irrelevant to students, utilization of an online graphic novel to arouse their interest and assist in their learning needs may be seen to be of benefit. Details of the said study, through its methods, results, conclusions, strengths and limitations, et cetera, are reviewed and analyzed in order to appreciate the significance of such endeavor. Review and Analysis I. Methods A descriptive study using surveys and interviews was conducted among 18 full-time undergraduate students in 14 programs, who were attending post-secondary college in a large city (p. 576). Three surveys were made, one demographic, and pre-post Research Literacy Competency surveys. The demographic survey provided a profile for the learners, including their reading habits and In ternet skills. The Research Literacy Competency survey conducted before exposing the respondents to the multimedia is used as baseline data for the Research Literacy Competency survey completed after they have utilized the CR. The post-CR exposure survey contained three open-ended items to ask participants for their opinions and suggestions regarding the multimedia. The tools used for both pre- and post Research Literacy Competency surveys are reported to be valid by the Cronbach alpha, and thus said to be reliable. All these mentioned measures are based on self-reports of the learners. Individual telephone interviews which lasted for 10 to 20 minutes, and participated by seven students, were made in order to better understand their experiences with the CR. The interviews utilized a structured guide, then they were taped and transcribed. II. Results and Conclusions The results of the pilot study show and further verify the conclusion of previous literature that using the multimedia yielded satisfactory experiences and it became an instrument to learn research literacy skills (p. 581). Learning the importance of critical thinking is reported by the students, and activities in the CR reinforced key concepts in research. There is also a noticeable significant increase in scores from the pre-course survey as compared to the post-course survey, which is evidence that the multimedia is effective in enhancing the knowledge of the respondents. Although there are positive results,
Friday, January 31, 2020
Temporary monopolies and intellectual property rights Essay What are the arguments for and against allowing temporary monopolies by allowing intellectual property rights? What forms of intellectual property exist for designs, and how are these different from patents and copyright? Knowledge and creativity are essential components in product innovation, and significantly contribute toward sustaining a competitive edge. Allowing temporary monopolies by allowing intellectual property rights have both pros and cons. Advantages of allowing a temporary monopoly by allowing intellectual property rights offers the benefit of protection from other competitors from benefiting from the innovation, and provides the opportunity to research and develop a product, and regain the costs involved in the process, to include make a profit. Disadvantages of allowing a temporary monopoly by allowing intellectual property rights include a decrease in potential in optimal creativity and innovation simply because no challenge exists typically produced when there are competitors. In addition, the consumer does not have the ability to explore and compare like and similar products, eliminating the opportunity to purchase the product of choice, to include purchase at a lower cost. Various forms of intellectual property exist for design. These include patent, copy and trade rights. A patent right allows for exclusive design and manufacturing, and protects the product from being sold by another competitor without license. Copyrights protect the original creativity of the inventor, and Trademark protects the design, the uniqueness of the product when sold in the competitive market. Reference: Tidd, J. Bessant, J. (2009). Managing Innovation Integrating Technological Market and Organizational Change, 4th Edition. (John Wiley Sons Ltd).
Thursday, January 23, 2020
Physical Therapy Ã¢â¬Å"Where am I? How did I get here?Ã¢â¬ is what many stroke patients say after recovering from an acute or severe stroke. A stroke is also known as a cerebrovascular accident, a life-threatening event where the brain is deprived of adequate oxygen. A physical therapistÃ¢â¬â¢s duty is to provide assistance and education that will help patients rehabilitate and return to a normal routine. As of today, there is a new treatment called treadmill training with partial body weight support that facilitates recovery of a patientÃ¢â¬â¢s ability to walk sooner after a surgery. Is the expense for treadmill training with partial body weight support which includes expensive equipment and constant physical therapy supervision worth it if it decrease the amount of time it takes a person to get better? Is it ultimately more efficient than traditional physical therapy? My argument will state that treadmill training with partial body weight support is worth the expense and provides better tec hniques than traditional physical therapy. After a stroke, patients are usually referred to physical therapy to begin the recovery process. There are many types of physiotherapy treatments for different types of strokes and injuries. The two kinds of strokes are ischemic stroke which occurs when the blood supply to the brain is interrupted by blood clots. The blood clots are caused when the arteries harden and a cluster forms which then limits blood and oxygen supply to the brain. The second kind of stroke is a hemorrhagic stroke, which occurs when there is bleeding into or around the brain. If one of the two strokes were ever to occur, getting oxygen and blood to your brain immediately is very important because permanent tissue damage and death could even occur. Physical therapists help not only stroke patients but a large variety of people who have physical limitations. A new treatment approach that is being studied involves Ã¢â¬Å"treadmill trainingÃ¢â¬ with partial body weight support. In this approach a physical thera pist patterns the movement of the involved or weak leg while the patient is supported in a sling type apparel while walking on a treadmill. This is a new technique that is showing good results. However, there are no long term studies as of yet. I believe that treadmill training is very beneficial to stroke patients because it helps them regain speed and strength in a short amount of time. Treadmill training is very costly, but increases your chances in walking by about three to four weeks faster than regular physical therapy.
Tuesday, January 14, 2020
Wavelength Conversion by Degenerate Four Wave Mixing in Silicon Waveguide Abstract Ã¢â¬â Four-wave mixing (FWM) is one of the interesting nonlinearities in optical systems. It is mainly used for wavelength conversion. To investigate the factors that affect the wavelength conversion efficiency, the evolution of Four-wave mixing (FWM) in silicon waveguide is modeled using matlab. The method of modeling is described. The effects of input pump power and waveguide length on the conversion efficiency are investigated.Results show that when propagating along a 0. 048m silicon waveguide, both the input pump power and stroke power decreases, while anti-stroke power increases first and then decreases along the waveguide. It is also shown that for a 0. 048 silicon waveguide, output anti-stroke power is the maximum when the input pump power is 3W. Also, when the input pump power is kept constant, there is a most effective waveguide length for wavelength conversion. Keywords -FWM; model; conve rsion efficiency; input pump power; waveguide length 1 IntroductionFour-wave mixing (FWM) is an inter modulation phenomenon in optical systems, whereby interaction between three waves (two pump waves and a signal wave) produce a fourth wave (idler wave) . This phenomenon can be used for all optical wavelength conversion (AOWC) and entangled photon generation [2, 3]. As extremely small core of si wires produce the nonlinear optical effect even under low optical power, Silicon is used as waveguide in our project for practical wavelength conversion by FWM process with longer waveguide lengths and smaller propagation loss.Factors that affect optical wavelength conversion are being studied to enhance the conversion efficiency. It has therefore become important to study FWM in silicon waveguide theoretically to increase the conversion efficiency for further experiment. In our project, FWM matlab to study the factors that affect the conversion efficiency. This paper discusses the fac tors that affect FWMÃ¢â¬â¢s conversion efficiency in silicon waveguide. Theoretical treatment is presented in section 2, where FWM in silicon waveguide is described. The method to model FWM in silicon waveguide using matlab is described in section 3.Results are shown in section 4. Results show that both the input pump power and the waveguide length play an important part in the FWMÃ¢â¬â¢s conversion efficiency. 2 THEORY The FWM process involves the interaction of four waves (two Pump waves, one signal and one idler wave) as they propagates along a medium. In our project, silicon waveguide is used as the medium. The schematic diagram of FWM in silicon waveguide is shown in figure 1. Here, E represents the electric field of the respective waves and normalized such that power P=|E|^2. Subscripts Ã¢â¬ËpÃ¢â¬â¢, Ã¢â¬ËsÃ¢â¬â¢ and Ã¢â¬ËaÃ¢â¬â¢ represent pump, signal and idler respectively.The superscript Ã¢â¬ËfÃ¢â¬â¢ represents forward propagating waves. [pic] Figure 1 S chematic diagram of FWM in silicon waveguide . 3 METHODOLOGY The evolution of the three waves along the silicon waveguide can be modeled by the following differential equations . [pic][pic][pic][pic] where Aeff is the waveguide effective core area, ? is the wavelength, ? is the linear propagation loss and ? is the TPA coefficient, ? is the FCA cross section and ? eff is the effective carrier lifetime. h and c follow their usual physical meaning of PlankÃ¢â¬â¢s constant and free-space speed of light respectively. k denotes the linear phase mismatch and can be expressed as[pic]. ? is the nonlinear parameter assumed to be the same for three wavelengths and defined as [pic] where n2 is the nonlinear refractive index. To simulate the evolution of the three waves along the silicon waveguide, the above four differential equation are solved simultaneously using Runge-Kutta-Fehlberg (RKF) method . |Parameters |Input-Output simulation values | |? |100/4. 34 m-1 | |Aeff |0. 17? 10^(-12 ) m2 | |? 0. 7? 10^(-11) m/W | |? p |1310? 10^(-9) m | |? eff |1? 10^(-9) s | |c |2. 998? 10^(8) | |h |6. 626? 10^(-34) Js | |? k |0 m/s | |? p |1. 0297? 10-21m2 | |? |2. 43 ? 10^(-11) m/W | 4 RESULTs and discussion . 1 Modelling of FWM in silicon waveguide Given Pp=1W, Ps=0. 001W, Pa=0W and L=0. 048m, Pump power, stroke power and anti-stroke power are drawn with respect to the position in the waveguide. [pic][pic][pic]The figures above show that when propagating in the waveguide, both the pump power and stroke power decrease while the anti-stoke power increases. This is as expected, as the interaction of the pump wave and stroke wave produce the anti-stroke wave. The increase of the anti-stroke power comes from the decrease of the pump and stroke power.It can be seen that, at the end of the waveguide, the pump power is only 0. 26W and the stoke power is only 0. 026W. Both of them decrease 74% of their original power. Both the pump power and stroke power decrease fast at the beginni ng, and then their decrease rate becomes slower when propagating further in the waveguide. This implies that the higher the pump power and the stroke power, the higher the propagation loss. As a result, the anti-stroke power increases fast at the beginning and then its increasing rate slows down. At the length of 0. 42m, the power of the anti-stroke reaches its maximum value which is about 3. 2*10^-5W. Then the anti-stroke power starts to decrease slowly. This may be because when the pump and stroke power is small, the gain of the anti-stroke power is less than its propagation loss. 4. 2 Effects of input pump power on conversion efficiency Given Ps=0. 001W, Pa=0W and L=0. 048m, Pp changes from 0 to 10W with step 0. 2W. The graph of the output stroke power and the output anti-stroke power are drawn with respect to the input pump power. [pic] Figure 2. 1 Output stroke power with different input pump powerThis graph shows that the larger the input pump power, the smaller the output str oke power. This is as expected, as the larger the input pump power, the larger the propagation loss. The output stroke decreases slower when the input pump power is higher. [pic] Figure 2. 2 Output anti-stroke power with different input pump power This graph shows that when the input pump power is less than3W, the higher the input pump power, the higher the output anti-stroke power. This is as expected, as more input power can be converted to anti-stroke power when the input pump power is larger.When the input pump power is larger than3W, the output anti-stoke power decreases with the input pump power. As the higher the input pump power, the higher the propagation loss. When the input pump power is larger than3W, the propagation loss dominates. 4. 3 Effects of waveguide length on conversion efficiency To investigate the relationship between the waveguide length and the conversion efficiency, input power are keep constant, Pp=1W, Ps=0. 001W, Pa=0W, L changes from 0. 001m to 0. 1m wit h step 0. 001m. Output stroke power and output anti-stroke power are drawn with respect to different waveguide length. pic] Figure 3. 1 Output stroke power with different waveguide length This graph shows that the longer the waveguide length, the smaller the output stroke power. This is as expected, as the longer the waveguide length, the larger the propagation loss. The decreasing rate of the output stroke power decreases with the waveguide length. [pic] Figure 3. 2 Output anti-stroke power with different waveguide length This graph shows that when the waveguide length is less than 0. 048m, the output anti-stroke power increases with the waveguide length.This implies that the gain is larger than the propagation loss in the waveguide. When the waveguide length is larger than 0. 48m, the output anti-stoke power decreases with the waveguide length. At waveguide length larger than 0. 048m, the propagation loss is larger than the gain of the anti-stroke power. The output anti-stroke pow er has a maximum value of 4. 5*10^3 when the waveguide is 0. 048m. Thus, the most effective waveguide length is 0. 048m. 5 Conclusion The conclusion serves the important function of drawing together the various sections of the written report.The conclusion is a summary, and the developments of the previous sections or chapters should be succinctly restated, important findings discussed and conclusions drawn from the whole study. In addition, you may list questions that have appeared in the course of the study that require additional research, beyond the limits of the project being reported. Where appropriate, recommendations for future work may be included. The conclusion should, however, leave the reader with an impression of completeness and of gain. AcknowledgmentThe author would like to express her deepest gratitude to A/P Luan Feng and PhD student Huang Ying for their guidance, assistance and advices. The author also wishes to acknowledge the funding support for this project fr om Nanyang Technological University under the Undergraduate Research Experience on Campus (URECA) programme. References The template will number citations consecutively within brackets . The sentence punctuation follows the bracket . Refer simply to the reference number, as in Ã¢â¬âdo not use Ã¢â¬Å"Ref. Ã¢â¬ or reference Ã¢â¬ except at the beginning of a sentence: Ã¢â¬Å"Reference  was the first Ã¢â¬ ¦Ã¢â¬ Number footnotes separately in superscripts. Place the actual footnote at the bottom of the column in which it was cited. Do not put footnotes in the reference list. Use letters for table footnotes. Unless there are six authors or more give all authorsÃ¢â¬â¢ names; do not use Ã¢â¬Å"et al. Ã¢â¬ Papers that have not been published, even if they have been submitted for publication, should be cited as Ã¢â¬Å"unpublishedÃ¢â¬ . Papers that have been accepted for publication should be cited as Ã¢â¬Å"in pressÃ¢â¬ . Capitalize only the firs t word in a paper title, except for proper nouns and element symbols.For papers published in translation journals, please give the English citation first, followed by the original foreign-language citation . 1] G. Eason, B. Noble, and I. N. Sneddon, Ã¢â¬Å"On certain integrals of Lipschitz-Hankel type involving products of Bessel functions,Ã¢â¬ Phil. Trans. Roy. Soc. London, vol. A247, pp. 529-551, April 1955. (references) 2] J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed. , vol. 2. Oxford: Clarendon, 1892, pp. 68-73. 3] I. S. Jacobs and C. P. Bean, Ã¢â¬Å"Fine particles, thin films and exchange anisotropy,Ã¢â¬ in Magnetism, vol.III, G. T. Rado and H. Suhl, Eds. New York: Academic, 1963, pp. 271-350. 4] K. Elissa, Ã¢â¬Å"Title of paper if known,Ã¢â¬ unpublished. 5] R. Nicole, Title of paper with only first word capitalized,Ã¢â¬ J. Name Stand. Abbrev. , in press. 6] Y. Yorozu, M. Hirano, K. Oka, and Y. Tagawa, Ã¢â¬Å"Electron spectroscopy studies on magneto-optical media and plastic substrate interface,Ã¢â¬ IEEE Transl. J. Magn. Japan, vol. 2, pp. 740-741, August 1987 [Digests 9th Annual Conf. Magnetics Japan, p. 301, 1982]. 7] M. Young, The Technical WriterÃ¢â¬â¢s Handbook. Mill Valley, CA: University Science, 1989.
Monday, January 6, 2020
Limerence was a harsh mistress. 2The philosopher character Pangloss, an undying optimist, continually asserts this, that All is for the best in the best of all possible worlds. 2 * * * I still planned on telling you, you know, since I was riding on being the only person going to Penn from our year. But my luck never did run smooth, did it? You donÃ¢â¬â¢t really remember this, you say, but I do. It came time to decide on where to go to college, and you wanted my help. Man, did I love helping you. In hindsight, this was probably the first time that I thought with you in mind. IÃ¢â¬â¢d always done things for you, but really they were for me. As hard as it was, I forced myself to be as objective as possible, with your best interests in mind, notÃ¢â¬ ¦show more contentÃ¢â¬ ¦It was still an active effort, though, stopping myself from going head over heels again, even after you broke up with your high school boyfriend that October. Of course, I reasoned with myself again, putting practicality over desire. And believe me, it was quite the damn 3 challenge. It didnÃ¢â¬â¢t help that youÃ¢â¬â¢d somehow become even more beautiful on both the outside and the inside. Excuses. Excuses. The thought was unavoidable, washing up on the shores of my mind whenever anyone asked me why I hadnÃ¢â¬â¢t gone for it yet. Whenever we spent time together. Whenever I thought of you at all. It began to live in my mind and have a mind of its own. You went abroad for the first time that summer. Three months in Spain. Just my luck. I missed you, for the first time as a friend. * * * Sophomore year came quickly, and IÃ¢â¬â¢d come to terms with my years-long depression by that fall. Freshman year was the first of many trainwrecks at Penn. Things at home became complicated, and I juggled home, classes, and my joke of a social life quietly. Being a reflective person had helped me for the longest time (as it is now, writing this), but it was my undoing. I had become a mirror trying to see my own reflection, so much in awe of the infinite that I felt infinitesimal. Things before college had always been a gameÃ¢â¬âthings to win, things to lose, nothing truly beyond the surface. But things were different now, as Drake said that year: We go 0 to 100...real quick. And hell, we were pushing 110.