Local Community by Volunteering Lab Report Example | Topics and Well Written Essays - 1250 words

Local Community by Volunteering - Lab Report Example These goals and objectives can only be achieved when a company is able to take appropriate decisions to cope with unexpected situations. Moreover, good image among people also plays a key role in the success of a company. A good company or organization is one which not only seeks profits through providing quality products and services to the customers but also stands by their side in case of natural disasters. In this report, we will discuss how Toyota, a Japanese car manufacturing company, can work towards bringing improvement to the lives of people affected due to recent earthquake and tsunami. 2. Importance of the Event The 2011 earthquake and tsunami caused severe damages to Japan’s economy. The earthquake not only affected lives of the people living near the focal point of the earthquake but also adversely affected the car manufacturing industry and Japan’s nuclear system. Being nationals of Japan, it is one of our main responsibilities to work towards bringing imp rovement to the lives of people and to the overall economy of Japan. For this reason, we can plan to organize a function or event that will provide an opportunity for internal clients and community members to network while also raising money. As the community is badly hit by the natural disaster, the funds can go towards disaster relief center of Japan. It will also provide us with the opportunity to raise our company’s profile among the local community. 3. Overview of the Idea Being the advisor to the head of division, I have planned an event which can help us accomplish the above-mentioned tasks. The plan is to organize a car racing event in 10 main cities of Japan, which include Nagoya, Toyohashi, Ichinomiya, Okazaki, Toyota, Inazawa, Inuyama, Kariya, Setyo, and Handa. The event will be organized in December. In the car racing event, we will not use hybrid cars, rather we will introduce our latest electric cars in order to make people aware of our latest developments. We w ill specially invite our internal clients along with the community members in the event. For the collection of funds, we will use the following ways: 1. Funds collected through sale of tickets 2. Funds collected through company’s net profits 3. Funds collected through participation of rich internal clients 3.1 Usage of Funds The main intent of the plan is to collect a good amount of funds through the event in order to use those funds to bring relief to the lives of the affected people. Some part of the collected funds will be given to the Japan disaster management center in order to make our contribution in providing relief to the economy of the county. Our main is to use the collected funds in the benefits of our society. We will help our people stand on their toes once again. The event will be organized in those cities which are not affected by the disaster and where people have strong financial backgrounds. We will educate people regarding the need of their participation i n bringing improvement to the nation’s economy. The event will not only help us collect a high amount of funds but also it will help our company maintain a good image among the local community. 3.2 External Consultant The event will include all those activities which are critically important for the success of any specific event. Along with car racing, some other attractive features of the event will incl

Napster and Apple’s Ipod Essay Example for Free

Napster and Apple’s Ipod Essay This paper deals with a through case study of the music industry in the face of change within the age of the Internet with the major focus on Napster and Apple’s ipod. In 2000 Shawn Fanning founded Napster – a file sharing program where people could download music for free and access the songs they have downloaded at any hour of the day. However, in 2000, the Recording Industry Association of America (RIAA) and a number of the big business recording labels argued that Napster was violating copyright laws, facilitating the illegal copying and distribution of copyrighted music. ’’ (Hill, 1) After Napster was in the lime light for allowing people to take advantage of free downloads, peer sharing technologies such as Kazaa were just coming into play where people were able to download music in a similar fashion. In very short order after Napster’s service was shut down, a number of new file sharing services started to rapidly gain users.’’ (Hill, 11) However there was one slight difference here, people were downloading through other people’s computers and not accessing the files via a central server and therefore it became difficult to stop this practice from taking place. The music industry responded as it had with Napster, filing lawsuits in attempt to shut down the services for copyright violation. But in this case it was more difficult to prove infringement.’’ (Hill, 11) Within the last 20 years since CD’s have been in vogue the music industry has changed. People have differing opinions regarding whether one is better than the other. It was Apple’s ipod and the Itunes online music service that revolutionized the music industry. These were the programs and applications that allowed you to purchase and listen to whatever you want but at the same time protect the artists that wrote and produced the music. It is important to look at the growth in the music recording industry since these changes took place and to see what the results and changes have been. There was strong growth in the music recording industry in the 90’s. However, when the 2000’s hit global sales dropped by 5% and continued to drop for the next three years. Many people have been blaming this negative trend on Napster. In 2003 sales dropped to a low of $32 billion in 2003. In the early 90’s the International Federation of the Phonographic Industry (IFPI) was concerned about consumers burning’’ songs downloaded over the Internet onto CD’s. This was such an easy process to do as you could download the files you wished to place on your CD from Napster and use a program by which you can copy CD’s. This concern was important to take into consideration because of the sheer amount of songs that were downloaded over the Internet for free and if people were downloading the songs they were not purchasing the CD’s from their favourite artists. There is a large cost in promoting an artist and the use of copyrighted material makes this process even more expensive for the artist as not as many people will be purchasing the CD’s. People would be more likely to download the songs instead of purchasing them because it is cheap (free) and easy. In the past, the music industry has always been concerned about the potential for piracy of copyrighted material. However, another trend that raised copyright infringement issues was MP3- compressed digital files that could be downloaded for free from the Internet. At the point where Napster was going through the courts certain lobbying groups were concerned with websites where people could download free MP3 files and in doing that listen to pirated music. The RIAA tried to shut down Napster because of piracy and the laws that the company had broken. During this time the music industry also tried to develop technology that would protect digital audio recordings from piracy and counterfeiting. The main problem in regard to Napster and the piracy issue is to do with the fact that Napster’s service was violating copyright, facilitating massive piracy of intellectual property and consequently stealing. There were talks about a paid subscription service to be created by Napster in 2001 but nothing ended up coming into fruition and on September 2, 2002, Napster announced its liquidation. It is clear to see why Napster has such an appeal to its audience given the fact that it was free and people could download any song that they wanted. In today’s environment people can still access peer-sharing websites however sometimes songs may be written down under a search engine listing and may even be a computer virus. Itunes is therefore giving users and artists the best of both worlds – consumers get to download the songs they want even if it is only one song off a particular album and the artist gets compensated for it. All in all, it is clear to see the vast changes that have taken place over the last decade or more and the fact that significant changes will take place in the future. The growing popularity and vast information available on the Internet is going to change the way people purchase and listen to music and people need to be aware of this as the world changes everyday and nothing lasts forever. References Hill, Charles W, The music industry in the age of the Internet: from Napster to Apple’s Ipod.

Hyperacusis :: Term Papers Research

Hyperacusis Hyperacusis is used to describe a high level of sensitivity to sound. It is also known as dysacusis, oxylacusis, hypersensitive hearing, or phonophobia. Persons with hyperacusis do not show abnormalloudness growth but an abnormal discomfort for suprathreshold sound (Barnes & Marriage, 1995). Audiograms for hyperacusis sufferers are typically normal. They show normal sound thresholds but the sensitivity level is above normal. The comfort level for most people is below 100 decibels. People with hyperacusis can experience discomfort at 40 to 50 decibels or lower (Schwade, 1995). The disorder may be frequency-specific (Schwade, 1995). Not all sounds of the same loudness (number of decibels) cause discomfort, but only sounds within a certain range, thus a small change of frequency may cause discomfort at low volume. The prevalence rate of hyperacusis is unknown. It frequently occurs with tinnitus, which afflicts approximately 40 million poeple in the United States (Hazell & Jastreboff, 1933). A questionnaire in a clinic population by Sanchez and Stephens (1997) found that eight percent of tinnitus sufferers have hyperacusis. These two studies would suggest about 3 million people in the United States have hyperacusis. Further a survey conducted by the Autism Research Institute found up to 40% of children with autism to be affected by hyperacusis. Hyperacusis also has an occurence rate of 95% in children with Williams syndrome (Borse, Curfs, & Fryns, 1997). These facts plus its comorbidity with many other diseases leads one to believe hyperacusis is not an extremely rare disease. Hyperacusis is a poorly understood disorder resulting in many theories of etiology and prognosis. Hyperacusis can occur alone or in conjunction with other disorders. A sudden single burst of noise (Schwade, 1995), a head injury (American Speech-Language Hearing Association, 1995), or surgery to the face or jaw (Barnes & Marriage, 1995) can result in hyperacusis. Barnes and Marriage also proposed two types of hyperacusis, peripheral and central. Peripheral hyperacusis is when the earÕs built in mechanism against loud or sharp sound seems to have been turned off. Absence of acoustic reflexes, positive history of vestibular disorders, MeniereÕs disease, or perilymph fistula account for peripheral hyperacusis. Hyperacusis co-occurring with BellÕs palsy, Ramsey Hunt syndrome, and myasthenia gravis is also considered to be peripheral hyperacusis. Hyperacusis is also an otological complication of herpes zoster (Adour, 1994) and craniomandibular disorders (Erlander and Rubinstein, 1991). Barnes and Marriage (1995) proposed another type of hyperacusis called central hyperacusis. Central hyperacusis results in an inability to tolerate specific but not necessarily loud sounds. Hyperacusis :: Term Papers Research Hyperacusis Hyperacusis is used to describe a high level of sensitivity to sound. It is also known as dysacusis, oxylacusis, hypersensitive hearing, or phonophobia. Persons with hyperacusis do not show abnormalloudness growth but an abnormal discomfort for suprathreshold sound (Barnes & Marriage, 1995). Audiograms for hyperacusis sufferers are typically normal. They show normal sound thresholds but the sensitivity level is above normal. The comfort level for most people is below 100 decibels. People with hyperacusis can experience discomfort at 40 to 50 decibels or lower (Schwade, 1995). The disorder may be frequency-specific (Schwade, 1995). Not all sounds of the same loudness (number of decibels) cause discomfort, but only sounds within a certain range, thus a small change of frequency may cause discomfort at low volume. The prevalence rate of hyperacusis is unknown. It frequently occurs with tinnitus, which afflicts approximately 40 million poeple in the United States (Hazell & Jastreboff, 1933). A questionnaire in a clinic population by Sanchez and Stephens (1997) found that eight percent of tinnitus sufferers have hyperacusis. These two studies would suggest about 3 million people in the United States have hyperacusis. Further a survey conducted by the Autism Research Institute found up to 40% of children with autism to be affected by hyperacusis. Hyperacusis also has an occurence rate of 95% in children with Williams syndrome (Borse, Curfs, & Fryns, 1997). These facts plus its comorbidity with many other diseases leads one to believe hyperacusis is not an extremely rare disease. Hyperacusis is a poorly understood disorder resulting in many theories of etiology and prognosis. Hyperacusis can occur alone or in conjunction with other disorders. A sudden single burst of noise (Schwade, 1995), a head injury (American Speech-Language Hearing Association, 1995), or surgery to the face or jaw (Barnes & Marriage, 1995) can result in hyperacusis. Barnes and Marriage also proposed two types of hyperacusis, peripheral and central. Peripheral hyperacusis is when the earÕs built in mechanism against loud or sharp sound seems to have been turned off. Absence of acoustic reflexes, positive history of vestibular disorders, MeniereÕs disease, or perilymph fistula account for peripheral hyperacusis. Hyperacusis co-occurring with BellÕs palsy, Ramsey Hunt syndrome, and myasthenia gravis is also considered to be peripheral hyperacusis. Hyperacusis is also an otological complication of herpes zoster (Adour, 1994) and craniomandibular disorders (Erlander and Rubinstein, 1991). Barnes and Marriage (1995) proposed another type of hyperacusis called central hyperacusis. Central hyperacusis results in an inability to tolerate specific but not necessarily loud sounds.

Epic Hero

Epic Hero Essay Heroes are strong, brave, loyal, and intelligent people that help us when we run into trouble and inspire us. Odysseus displays these characteristics, in the epic poem â€Å"The Odyssey. † He's on a quest to get back home and to regain his throne, but a series of unfortunate events occur that makes his journey long and treacherous. In his various adventures like The Cyclops, The Land Of The Dead, and The Lotus-Eaters, Odysseus shows examples of his heroic characteristics. In Odysseus's adventures, he comes across a cyclops named Polyphemus. When Odysseus was trapped in Polyphemus's cave, he told him his name was â€Å"nhbdy. † He also knew that he shouldn't have killed him in his sleep because he and his men wouldn't have been able to escape. Through that experience, he proved that he was an intelligent and cunning person. When Odysseus went to the Land of the Lotus-Eaters, he and his men rested there and relaxed. His men were pressured to eat the lotus plants and it made his crew all looney and â€Å"high. Odysseus showed his intelligence and loyalty by not eating the lotuses and carrying his men back to the ship. With every action Odysseus takes, it exposes him even more as an epic hero. On his journey to The Land Of The Dead, Odysseus displays extraordinary actions that truly show he is an epic hero. He was brave enough to even go down to the underworld and strong enough to undergo the heat. He fended off evil spirits and met his friend and his mother. Odysseus, raider of cities used his strength to go through those events. Heroes are strong, smart, devoted, and courageous people that help and influence us. Odysseus, king of Ithaca, from the epic poem â€Å"The Odyssey,† shows that he surely is an epic hero. He went through a whole bunch of horrible events that has proven his existence as a great role model. It is people like Odysseus that makes this world a better place and he influences people to become more a hero everyday.

Facebook Brings More Good Than Harm

Stress is the body natural response to the changes which occurs in live. Stress is the combination of psychological,physiological and behavioral reaction. Stresss can be good or bad. Stress can affect both your body and your mind. Stress occurs when an individual is confronted by a situation that they perceive as overwhelming and cannot cope up with. The effect of stress is health problem,impact on students academic performance and changes in personal behavior. Firstly,effect of stress can lead to health problem. It can cause headaches, nausea, rise in blood pressure, pains in the chest, and insomnia.When people feel stressed by something going on around them, their bodies react by releasing chemicals into the blood. These chemicals give people more energy and strength, which can be a good thing if their stress is caused by physical danger. But this can also be a bad thing, if their stress is in response to something emotional and there is no outlet for this extra energy and strength . People under large amounts of stress can become tired, sick, and unable to concentrate or think clearly. Sometimes, they even suffer mental breakdowns. But beyond a certain point, stress stops being helpful and starts causing major damage to your health,Moreover,stress can give impact on students academic performance. The pressure to perform well in the examination or test and time allocated makes academic environment very stressful. However, academic work is never without stressful activities. Stress is defined as the physical pressure, pull, or other force exerted on one thing by another; strainIn conclusion, stress could cause depression, hopelessness, psychiatric disorders, behavioral changes and the weakening of the immune system. These effects are not all inclusive but these are the ones that most commonly effect people. Finally,stress can lead to changes in personal behavior.Students will become irriatable. His relationship between college mates and lecturers could be damag ed. Futhermore,this changes could make him depressed and leads him to violent behavior. Students are the future leaders of tomorrow and anything that interferes with their well being should be termed as denying the society their future leaders. University should conduct stress reduction sessions to the students, and lecturers too should be encouraged to advise their students where necessary. Students in Universities and colleges should control their stress and hence minimize the possibilities of psychiatric disorders and suicides. (379 words)

What Is the SAT A Complete Explanation of the Test

What Is the SAT A Complete Explanation of the Test SAT / ACT Prep Online Guides and Tips If you’re thinking of applying to college, it’s vital that you know what the SAT is and how it will affect your application process. So what is the SAT? It’s one of two standardized college admissions tests in the US.(The other is the ACT.) It's run by the College Board, a non-profit that also administersthe PSAT and the AP (Advanced Placement) program. The SAT was originally adapted from an Army IQ test and administered as a college admissions test for the first time in 1926. However, it didn't really catch on until 1933, when the presidentof Harvard started using the test to assess scholarship applicants because he believed it was an effective measurement of intellectual potential. This view of the SAThelped propel its popularity- by the 1940s, it had become the standard test for all college applicantsandwas administered to over 300,000 people across the country. The SAT's dominance of college admissions testing was challenged with the creation of the ACT in 1959. Though initiallymuch less popular than the SAT, the ACT took hold in the Midwest and the mountain states and, in 2010, actually surpassed the SAT to become the most popular college admissions test. In part because of the increased competition from the ACT,the SAT recently underwentsome big changes in 2016. The basic purpose and form of the test arethe same (it’s still a multiple choice test used for college admissions decisions), but certain aspects of the structure and content havechanged. Schools must have approved of these changes because,in 2018, the SAT reclaimed its title and once again became the most popular college admissions test. This post will establish the basics of the SAT to help you prepare for this important test. Why Do People Take the SAT? The SAT is a standardized test meant to show schools how prepared you are for college by measuringkey skills like reading comprehension, computational ability, and clarity of expression. Because so many students take the test, it also provides schools with data about how you compare to your peers nationwide. You'll almost certainly need to take the SAT or ACT if you're applying to colleges or universities in the United States, since most require you to submit test scores with your application.Depending on where you want to apply, your ACT or SAT score can account for as much as 50% of the admission decision, so a strong standardized test score is vital. Additionally,several states require all high school juniors to take the SAT, including Delaware, Illinois, andMichigan. If you want to go to University of Illinois, you must submit SAT or ACT scores. (Kevin Dooley/Flickr) Which Schools Accept the SAT? All four-year colleges in the US accept the SAT, and, as I mentioned above, most schools require either the SAT or the ACT (they don’t differentiate between the two). However,there are an increasing number of colleges and universities with more flexible policies, so make sure to check with the specific schools you're planning to apply to. You’ll also need to take the SAT or ACT if you’re a US student looking to apply to schools in the UK or Canada or an international studenthoping to attend college in the US. What Does the SAT Cover? The SAT has foursections, as well an optional essay.The first section will be Reading, followed by Writing and Language, then the no calculator section of Math, followed by the Math section you're allowed a calculator on. If you decide to take the SAT essay,it'll be the final section of the exam. Most SAT questions are multiple choice, but five questions on Math No Calculator and eight questions on Math Calculator will be grid-ins. When you take the SAT, you’ll get a 5-minute break after about every hour of testing. That means you’ll get a break after the Reading section and a second one after the Math No Calculator. If you’re taking the Essay section, you’ll also get a break before starting. The total time of the SAT is 3 hours if you don't take the essay, and 3 hours and 50 minutes if you do take the essay. The following chart breaks downthe format of the test. Order Section Time in Minutes # of Questions Time per question 1 Reading 65 52 75 seconds 2 Writing and Language 35 44 48 seconds 3 Math No Calculator 25 20 75 seconds 4 Math Calculator 55 38 77 seconds 5 Essay (optional) 50 1 Total: 3 hours, 50 minutes (3 hours without essay) 154 (+1 essay prompt) How Is the SAT Scored? When you take the SAT, you'll be given a total score between 400 and 1600.The SAT has two major sections: Evidence-Based Reading and Writing (combined from Reading + Writing and Language), and Math. You can earn a scaled score of between 200 and 800 points on each section.But where does the scoring scale come from? You start with a raw score for each topic area.Your raw score is simply the number of questions you answered correctly;skipped or wrong questions do not add or subtract from your raw score.That number is then converted into ascaled score through a process called equating- the College Board is a bit cagey about how exactly this works, but it's based on years worth of data rather than how people do on a specific test date. The average SAT score is 1068,with some variation from year to year, but what counts as a good score for you will really depend on where you’re looking to apply. To get into a top-tier schoolyou'll likely need to score about 1500 or higher, but for the local branch of the state university you mightbe just fine with a 1050. When Should You Take the SAT? The ideal time to take the SAT for the first time is usually in winter of your junior year, when you’ve covered most of the material in school, but you still have time to take it again. Your testing schedule may be different, however, especially if you need SAT scores for another purpose or are required to take it by your school. You've got to be organized in your SAT prep planning! (Teresa Robinson/Flickr) Everything You Need to Plan for the SAT Hopefully you now understand what the SAT is and why you might need to take it. The hardpart is still to come, however- preparing for the test. To help with that, I've listed some ofthe key questions you need to consideras you start planningfor standardized tests and college applications more generally. Should I Take the SAT or the ACT? It's hard to know for sure which of the two standardized tests will be better for you without your trying them out. However, if you aren't up for spending the time to take two full practice tests, take a look at this guide to help you decide. Also, keep in mind that, for many students, there's not that big of a difference between the SAT and the ACT. What SAT Score Do I Need to Get Into College? To reiterate: what score you should shoot for depends on where you want to apply. Use the formula in this articleto calculate your ideal SATscore. What's the Best Way to Prepare for the SAT? Now that you've calculated what your SAT scoregoal is, you need to decide how to get there. Will you do betterhiring a tutor or studying on yourown?You may also want to consider an online program like PrepScholar! If you do decide to take on the SATprep process on your own, make sure you get the best book for your needs. Taking official practice SATs is also key to understanding the exam and learning where you need to improve during your studying. What Do I Need to Know to Prepare for the SAT? There are three key aspects of prepping for the SAT: learning the logic of the test, studyingthe content, and practicing the questions. To get a sense of how to think effectively about the SAT, download our guide to the 5 strategies that you must use. For specific information on thematerialcovered and the styles of questions you'll see on the SAT, try our complete guides to each section: reading, math, and writing. For practice materials, you can find the best SATpractice tests here and an in-depth guide on how to use them here. What's Next? Here are the best study guides for SAT Reading, SAT Writing, and SAT Math, available anywhere. I guarantee you that these guides will improve your score! Want more guidance on SAT study plans?Get tips on how long you should study for the SAT and learn how many times you should take the SAT. Taking the ACT instead of or in addition to the SAT?Then you'll benefit greatly by taking a look at our ultimate ACT guide. Like this guide, we give you tons of free links and resources so that you can have a successful test day! Want to improve your SAT score by 160 points? Check out our best-in-class online SAT prep classes. We guarantee your money back if you don't improve your SAT score by 160 points or more. Our classes are entirely online, and they're taught by SAT experts. If you liked this article, you'll love our classes. Along with expert-led classes, you'll get personalized homework with thousands of practice problems organized by individual skills so you learn most effectively. We'll also give you a step-by-step, custom program to follow so you'll never be confused about what to study next. Try it risk-free today:

Concerns about violent cinema essays

Concerns about violent cinema essays The title statement is a very definite opinion, a one-sided argument that leaves little room for doubt. Its certainly a view that research can support, but also a view that can be challenged. Our society has unfortunately experienced a turbo-charging of occasional mass murderers, for which violent cinema has been held responsible by many people, including Philip Adams, from whom the title quote was taken. Adams then argues that violent cinema has had a deadening effect on our sensibilities. Have we become less sensitive to real life violence? According to Adams we have. However the fact is that violent cinema affects different people in different ways. It would be inaccurate to say that violent cinema has a desensitising effect on the sensibilities of everyone, but certainly research proves that desensitising does exist. Its possible that constant viewing of violent material may harden or desensitize its audience to real life violence. Micheal Medved believes that people are becoming immune to violence. The survey I conducted for workshop 4 which analysed audience response to cinema violence produced interesting and contrasting evidence. One participant, a first year male psychology student agreed that violence on screen desensitizes him to real life violence. He felt that after watching a violent film, that a report of an attack on someone would seem less shocking to him because viewing violence on screen makes him more acceptant of it. While the other participant, a first year biomedical student was affected by the evocativeness of realism. She felt that screen violence only serves to compound the reality of the violent society in which we live and it makes her more conscious of the violence that surrounds us, thus arousing fear in her. Asked about the same scenario, she said that a report of an attack would only reinforce her shock at the violence that exists in our contemporary society. The fact that the...

The Economic Impact of Terrorism on September 11

The Economic Impact of Terrorism on September 11 The economic impact of terrorism can be calculated from a variety of perspectives. There are direct costs to property and immediate effects on productivity as well as longer-term, indirect costs of responding to terrorism. These costs can be calculated quite minutely; for example, calculations have been made about how much money would be lost in productivity if we all had to stand in line at the airport for an extra hour every time we flew. (Not as much as we think, but the line of reasoning finally provides a rationale for the unreasonable fact that first class passengers wait less. Maybe someone is guessing, rightly, that an hour of their time costs more than an hour of others). Economists and others have tried to calculate the economic impact of terrorism for years in areas beset by attacks, such as Spains Basque region and Israel. In the last several years, most analyses of terrorisms economic costs begin with an interpretation of the costs of the September 11, 2001, attacks. The studies examined are fairly consistent in concluding that the direct costs of the attack were less than feared. The size of the American economy, a speedy response by the Federal Reserve to domestic and global market needs, and Congressional allocations to the private sector helped cushion the blow. The response to the attacks, however, has been costly indeed. Defense and homeland security spending are by far the largest cost of the attack. However, as economist Paul Krugman has asked, should the expenditure on ventures such as the Iraq war really be considered a response to terrorism, or a political program enabled by terrorism. The human cost, of course, is incalculable. Direct Economic Impact of Terrorist Attack The direct cost of the September 11 attack has been estimated at somewhat over $20 billion. Paul Krugman cites a property loss estimate by the Comptroller of the City of New York of $21.8 billion, which he has said is about 0.2 % of the GDP for a year (The Costs of Terrorism: What Do We Know? presented at Princeton University in December 2004). Similarly, the OECD (Organisation for Economic Cooperation and Development) estimated that the attack cost the private sector $14 billion and the federal government $0.7 billion, while clean-up was estimated at $11 billion. According to R. Barry Johnston and Oana M. Nedelscu in the IMF Working Paper, The Impact of Terrorism on Financial Markets, these numbers are equal to about 1/4 of 1 percent of the US annual GDPapproximately the same result arrived at by Krugman. So, although the numbers by themselves are substantial, to say the least, they could be absorbed by the American economy as a whole. Economic Impact on Financial Markets New Yorks financial markets never opened on September 11 and reopened a week later for the first time on September 17. The immediate costs to the market were due to damage to the communications and other transaction processing systems that had been located in the World Trade Center. Although there were immediate repercussions in world markets, based on the uncertainty engendered by the attacks, recovery was relatively swift. Economic Impact of Defense and Homeland Security Spending Defense and security spending increased by a massive amount in the aftermath of the September 11 attacks. Glen Hodgson, the Deputy Chief Economist for the EDC (Export Development Canada) explained the costs in 2004: The US alone now spends about US $500 billion annually20 percent of the US federal budgeton departments directly engaged in combating or preventing terrorism, most notably Defense and Homeland Security. The Defense budget increased by one-third, or over $100 billion, from 2001 to 2003 in response to the heightened sense of the threat of terrorism – an increase equivalent to 0.7 per cent of US GDP. Expenditures on defense and security are essential for any nation, but of course they also come with an opportunity cost; those resources are not available for other purposes, from spending on health and education to reductions in taxes. A higher risk of terrorism, and the need to combat it, simply raises that opportunity cost. Krugman asks, regarding this expenditure: The obvious, but perhaps unanswerable, question is to what extent this additional security spending should be viewed as a response to terrorism, as opposed to a political program enabled by terrorism. Not to put too fine a point on it: the Iraq war, which seems likely to absorb about 0.6 percent of America’s GDP for the foreseeable future, clearly wouldn’t have happened without 9/11. But was it in any meaningful sense a response to 9/11? Economic Impact on Supply Chains Economists also assess terrorisms impact on global supply chains, the sequence of steps that suppliers of goods take to get products from one area to another. These steps can become extremely costly in terms of time and money when extra layers of security at ports and land borders are added to the process. According to the OECD, higher transportation costs could have an especially negative effect on emerging economies that have benefited from a decrease in costs in the last decade and thus on countries ability to combat poverty. It does not seem entirely far-fetched to imagine that in some instances, barriers meant to safeguard populations from terrorism would actually amplify the risk: poor countries that might have to slow exports because of the cost of security measures are at a greater risk because of the effects of poverty, of political destabilization, and of radicalization among their populations.

Final Project Essay Example | Topics and Well Written Essays - 1500 words - 1

Final Project - Essay Example The main components of a criminal justice systemare: law enforcement, prosecution, defense attorneys, courts and corrections, all of which play a major role in the process. Officers in law enforcement take reports when crime is committed in their areas of jurisdiction, they investigate the crimes while collecting and protecting evidence. They then may arrest suspects based on their investigations and give testimonies in court. Prosecution is composed of lawyers who represent the federal or state government during the court process. They receive evidence from law enforcers, review it to decide whether to keep or drop a case, present the evidence in court, they question the witnesses and negotiate plea bargains with the accused. Defense attorneys represent the accused against the case of the government and are either hired by the defendant or in cases where the defendant cannot afford an attorney, they are assigned by the hearing court. In courts, judges follow and oversee the proceedi ngs of a case, they accept or reject plea agreements, make decisions on whether to release the defendant before trial, and sentence offenders who are found guilty. In corrections, assigned officers superintend convicted offenders in prison, jail or while they are in the community on parole or probation. The correction officers ensure the safety and security of the facilities that hold offenders, they supervise offenders in daily activities and oversee the process of releasing inmates. At times, these officers prepare reports containing detailed background information on the offender to aid judges in sentencing and they notify victims in case of status change of the offender. Murder This refers to the criminal act of unlawful ending the life of another human being without any excuse or justification. It is regarded into three types depending on the seriousness of the crime: homicide which is the most serious, manslaughter which is less serious and justifiable homicide which is not re garded as a crime. Under US law, it is classified into either intentional murder, murder resulting from the intent to cause serious harm to another person, killing resulting from a depraved heart orextreme recklessness and murder committed by an accomplice during its commission, its attempt or flight from other crimes (Pollock, 2008). Depending on the circumstance surrounding the act, the convicted offender may be sentenced to many years in prison without the possibility of parole or death. Various states classify murders by degrees with the most common being first degree murder which is willful and premeditated, and second degree murder that is not premeditated(Jenkins, 2011). Discussion of Case Study Arrest The offender, James Lane was arrested by the police and charged with the murder of Lucy Lane and Rodney Hill based on the sufficient evidence uncovered (a six inch blade knife and clothes that were soaked in blood that matched the blood type and DNA of both Lucy Lane and Rodney Hill). The police officers would first read the offenders rights to him and state the charges on which he was being arrested. Due to the seriousness of the crime, Mr. Lane would be booked into police custody. His fingerprints and photo would be taken during the booking process and he would then be led into a cell in a holding facility. Court Within hours of his

Free Narrative Writing Essay Example | Topics and Well Written Essays - 1500 words

Free Narrative Writing - Essay Example He compared it to having a daughter. A son who does not breastfeed would cry for milk again and again. Your large cans of formula milk would vanish faster than you can buy it. They computed that his wife was better off breastfeeding than taking a part-time job. So she did not work anymore. She was not that happy though, his friend said. His face tightened a little. She liked having her own money, you know. Having that time to be away. They had six kids. She was pregnant almost every year. When Aamir went home, Adeela was waiting by the door. She already received her husband's text message that he would be coming home. She waited patiently and read Aamir's face who entered the door with sweat in his brow. His face was darker than the clouds outside. He did not get the job again. Adeela patted her husband's shoulder. â€Å"Did you have dinner already?† â€Å"No, I did not.† â€Å"I cooked Biryani.† â€Å"Vegetables?† â€Å"I added some fish.† He went to the table and looked at the dish. He could see a pinch of fish. He wondered how it would be to be a fish. His wife would be having hundreds of twins maybe. â€Å"You go ahead and eat. This can last until the morning,† he told his wife. He went into the kitchen and opened the half-full carton of milk. He drank half a glass and went to bed. Adeela ate silently. Aamir turned on his phone's radio and listened to classical music. His mother used to play that to him when they were little. She played the violin before too, before the car accident. Then everything went downhill from there. Their father became a drunkard. They lost their carpet business to booze and cards. Aamir slept and snored noisily. Adeela just washed the dishes and lied beside her husband. She felt her twins kick hard inside her. She looked out the window. It was 10 PM and her husband said he'd be home by 8 PM. Two hours. Where did he go? Two hours ago Aamir walked mindlessly in the dark park. His hands were sunk deep into his pant's pockets. It was cold and it bit him. But he felt nothing. He had been trying to have a job for the past two months now. He wished for a laptop. It would have been nice to try writing again. He heard someone talking about writing online and making good money. He needed that. Good money. It would be nice to stay at home too. He could look after his wife and kids. He noticed two white teenagers had been following him. He thought they couldn't steal anything from him. But if they killed him, that wouldn't be good. His wife would be helpless without him. Aamir decided to walk faster and left the park's darker paths. The snores made her stay awake for a good part of the night. Adeela didn't mind. She slept soundly the whole day, while her husband looked for a job. She went over the classified ads herself. She found two or three jobs that she could apply for. Part-time jobs. But Aamir did not want to hear about it. She wished she was the man instead. The clock tic ked longer when it was morning. Adeela received a phone call from her mother, who checked everyday if she was okay. Her mother called twice a day. Sometimes thrice. Or four times. She always hanged up after knowing that Aamir haven't found any job yet. Her mother suggested, â€Å"Why don't you come here? You can stay and save rent. Food. He could work at the laundry business.† â€Å"No Mama. He wouldn't like that.† â€Å"You married a proud man. You cannot use ego to buy food and milk. I have to go now.† Adeela could hear it. The breaking sound of her mother's voice who wanted

Inheritance - Howards End Essay Example | Topics and Well Written Essays - 1750 words

Inheritance - Howards End - Essay Example Margaret, Helen and Tibby the half-German Schlegel children represents the French bourgeoisie intellectuals who have so much in common with the real life group from Bloomsbury and the Basts who are couples belonging to lower-class. As the novel moves to later chapters, Schlegel sisters attempt to assist the poor Basts and try to stop Wilcoxes from being prejudiced. The novel begins with three letters written by Helen to her older sister Margaret whom she occasionally calls Meg. Helen is intending to visit the family of Wilcox whom they had met while on a journey in Germany at Howard End. The novel reveals how Helen and her sister are dismayed by the place, as what they saw was quite different with what they expected. The motto of the book is just inheritance and connection. For instance at one time through the novel, Forster asks, â€Å"Who will inherit England?† The purpose of this paper is to discuss how Forster has developed the theme of inheritance in the novel (Doll 1). T he marriage of Henry and Margaret who comes from different families in the novel portray how different world can be connected. For instance, Margaret unlike her sister Helen gets to know better of the Wilcox family through marriage. However, Margaret’s initial encounter with this new family happens to be dismaying and disastrous, though she begins to understand that most of the things that she like, such as culture and art would not exist not unless there is economic and social stability established by the Wilcoxes family. At some point through the novel, Forster reveals how marriage between Margaret and Henry almost ended when Henry Wilcox is not able to make valuable connection between his transgression sexuality with Jacky and Helen’s relationship with Leonard. This implies social challenges that England had to undergo during the early twentieth century (Bradshaw 248). In Howards End, inheritance of property is symbolically disheveled with family issues, social clas s, modernity and national identity. Family is at straggle over inheritance. The novel focuses on three families: the Wilcoxes, Schlegels and Basts. The Schlegels family is a mixture of German and English people. In this family there exists empathetic, rational and pragmatic Margaret (Emma Thompson), Helen (Helena Bonham Catter) who is so impulsive and straggles in the name of socialism, social responsibility and economic injustice, their younger brother, Tabby (Adrian Ross Magenty) and Aunt Juley (Prunella Scales). Helen proves are the pivot of the novel’s melodrama and the politics of gender associated with her, though Margaret proves to be the weightier character (Bradshaw 248). In the novel Forster notes that the Wilcoxes family are presented by people like Mrs. Wilcox, Ruth, a past specter and patriarchal Henry whom Helen describes as a man who cannot reconcile science with religion. He is too mean to an extent that he considers cutting down clerks salaries in order to ha ve comfort and become rich. Furthermore, the entire Wilcox’s family comprising Evie, Paul, Charles and Dolly who is Charles’s wife are portrayed as snobbish, unimaginative and obsessed with class propriety and property. In this case, the Wilcox is the representation of past England through Ruth. The lives of the two families Schlegels and Wilcoxes become entangled through Ruth Wilcox, a friend to Margaret, leaving Howard

First aid and personal safety Essay Example | Topics and Well Written Essays - 500 words

First aid and personal safety - Essay Example The following are the objectives set by the American Red Cross; Recognizing and handling an emergency, checking the scene of accident for safety and the victims for consciousness, how and when to remove a victim from a scene that is dangerous, how to do an interaction with emergency medical services and the time they should be called, learn how and why it’s important to use basic precautions so as to avoid disease transmission risk while and after provision of care, how to make a prioritization and care serious life-threatening sudden illnesses and injuries, how to identify a victim who is conscious for both life and non-life threatening situations, how to care and recognize for victims who fall ill suddenly, how to identify and take care of various kinds of wounds, which include bleeding and burns, how to identify and take care of a victim injured by cold or heat-related emergency, how to perform simple precautions so as to minimize the risk of transmitting disease, how to ch eck external bleeding and finally how to identify and take care of bone, joint and muscle injuries, which includes injuries to such parts as the neck, head and back. There are three different and separate types of first aid kits; for the car or truck, travel purposes and for your home or business. For a First Aid kit to be effective it should always be stocked in regard to the localized needs. For instance, the First Aid to be used along the coast is completely different from that likely to be used inland.

Business Risk Management Assignment Example | Topics and Well Written Essays - 1000 words

Business Risk Management - Assignment Example 132). The average of three hundred and fifty dollars they receive is as too low to cater for the needs and demand of their families. Working hours and salaries: Within the last ten months, all the three Apple factories operating in China exceeded both the Chinese legal limits on working hours and the fair labor association standards. The fair labor association allows a maximum of sixty working hours per week, including both standard shifts and paid overtime. According to its survey, the Apple branches in China broke this rule by subjecting its employees to more than maximum working time per week. Though the workers are forced to work over the limits allowed by both the government and the fair labor association, Apple own investigation has shown that most of its facilities located in foreign countries broke legal limits by failing to pay proper overtime wages as stipulated by the law(Sad grove, 2005, p. 338). The fair labor associations found that almost a quarter of Foxconn’s workers do not get the compensation they are owed for unscheduled overtime. Health and safety: Almost half of the employees surveyed, by the fair labor federation, said that they were either experiencing or witnessing some kind of work related accident. Before FLA investigations, Foxconn recorded only accidents that resulted to production stoppages (Pickett, 2006, p. 275). This has for a long time led to torture of many of its workers, who had no one to return to their rescue. Prevention of underage labor: In its 2006 audit, Apple Company placed some of its findings on its website. Its current reports, on breach of labor and human rights including the use of underage workers, indicated that in more than hundred of its facilities, excessive work hours were a common thing and that most of those facilities failed to pay proper overtime wages (Froeb & McCann, 2009, p. 204).

VISIONARY LEADERSHIP, CROSS-CULTURAL LEADERSHIP, FACILITATING CHANGE Research Paper

VISIONARY LEADERSHIP, CROSS-CULTURAL LEADERSHIP, FACILITATING CHANGE - Research Paper Example The dimension of Power-distance addresses existing inequality level across the cross-cultural workforce. The inequality operational is acceptable within the power setting of the organization with regard to positions held in the work environment. In a low PD leadership system, power is well distributed as opposed to a high PD system where the management positions held are key in decision making in the organization. As such, closed-door meetings are done and communication is different in the different states that are created. Visionary leadership applies a hybrid system that allows acknowledgement of everybody’s role in decision-making. During crisis, a high PD system is preferable in making decisions while low PD useful where the decisions made affects policies. In addition, the dimension of Individualism-collectivism (IVD) that focuses on the strength of ties within the organizational community should be applied. An organization with high IDV displays characteristics of loose connection, little responsibility and a demand for high privacy. On the contrary, organizations with low IDV display qualities of respect, loyalty and strong cohesions within the work force in the organization. Visionary leadership lays down strategies that emphasize the benefits of working as a community with the aim of motivating labor force intrinsically and encouraging teamwork. Similarly, visionary leadership assesses the role of the dimension of Masculinity (MAS) in its environment. It refers to the ability of an organization to appreciate the traditional male and female roles in workforce. Organizations where the score of MAS is high expect men to be assertive and tough. In this setup, men occupy the managerial positions. In a leadership where the MAS score is lower, the roles played by men and women are related and are assigned in regards to professionalism and qualification. Visionary leaders embrace workforce based on qualification and professional

Business Risk Management Assignment Example | Topics and Well Written Essays - 1000 words

Business Risk Management - Assignment Example 132). The average of three hundred and fifty dollars they receive is as too low to cater for the needs and demand of their families. Working hours and salaries: Within the last ten months, all the three Apple factories operating in China exceeded both the Chinese legal limits on working hours and the fair labor association standards. The fair labor association allows a maximum of sixty working hours per week, including both standard shifts and paid overtime. According to its survey, the Apple branches in China broke this rule by subjecting its employees to more than maximum working time per week. Though the workers are forced to work over the limits allowed by both the government and the fair labor association, Apple own investigation has shown that most of its facilities located in foreign countries broke legal limits by failing to pay proper overtime wages as stipulated by the law(Sad grove, 2005, p. 338). The fair labor associations found that almost a quarter of Foxconn’s workers do not get the compensation they are owed for unscheduled overtime. Health and safety: Almost half of the employees surveyed, by the fair labor federation, said that they were either experiencing or witnessing some kind of work related accident. Before FLA investigations, Foxconn recorded only accidents that resulted to production stoppages (Pickett, 2006, p. 275). This has for a long time led to torture of many of its workers, who had no one to return to their rescue. Prevention of underage labor: In its 2006 audit, Apple Company placed some of its findings on its website. Its current reports, on breach of labor and human rights including the use of underage workers, indicated that in more than hundred of its facilities, excessive work hours were a common thing and that most of those facilities failed to pay proper overtime wages (Froeb & McCann, 2009, p. 204).

Phase 2 Discussion Board 2 Essay Example | Topics and Well Written Essays - 1500 words

Phase 2 Discussion Board 2 - Essay Example Nevertheless, we must start thinking proactively so we can identify and fix the weak systems that are occasioning the problems we are going through. Ideally, our partner could not have been involved in breach of good conduct if we had earlier taken proactive measures by, for example, formulating a tough code of conduct framework to guide our officers when discharging their duties (Hastie, 2010). Apparently, I would like to encourage the members of this committee to adopt a proactive thinking as opposed to reactive thinking. This is primarily because of the shortcomings we are likely to experience if we continue with the reactive approach. For example, you should realize that a reactive thinker will use the company’s resources to solve the immediate problems and then hope that the problem has been done away with. In some situations, a reactive thinker will tend to imagine that a problem has become less significant only to be surprised when it recurs in future with serious conse quences. On the other hand, proactive thinking involves conceiving problems as systems, which is a dynamic approach that puts into account the interaction of both human and non-human elements. For example, an introduction of compulsory integrity course in our organization will go a long way in preventing problems that have a far reaching repercussions from occurring in the future (Hastie, 2010). Defining critical steps in the decision-making process. In regards to decision making in our organization, we can apply rational model (Towler, 2010), which involves six critical steps including problem identification, generation of alternatives, evaluation of alternatives, choosing of an alternative, implementation of the decision, and evaluation of decision’s effectiveness. We should, therefore, start by pointing out the problem we are undergoing. Our problem was perpetrated by one of our partners who disregarded his contractual obligation by failing to advise the contracting team t o carry out a very crucial market research analysis on behalf of one of our long-standing clients. If we fail to take an action to address this issue, we are likely to experience dire repercussions including possible litigations for breach of contract, loss of reputation of our company as well as the loss of our esteemed and royal customers. Ideally, it is recommendable that all the stakeholders take part in scanning both the internal and the external environment with the aim of identifying problems so that next time actions can be taken proactively and on a timely basis (Hastie, 2010). Once the problem has been identified, generation of alternatives should follow. Before generating these alternatives, we should specify the goals that we want to achieve. For instance, we intend to increase the integrity level in our company so we can avoid the consequences that comes with dishonesty and lack of fulfillment of our contractual obligations. We also intend to address the mistake that ou r partner did, so our reputation is not tainted. Having identified the goals, it will be easier for us to identify the alternative, however, enough evidence must be gathered regarding each alternative. In addition, the repercussions of taking each alternative should be analyzed (Hastie, 2010). When it comes to the stage of evaluating the alternatives, we must ask ourselves questions

Instructural planning and design Essay Example for Free

Instructural planning and design Essay It is highly recognized by people that strong educational background and good educational status juxtaposed with a strong conviction to reach a goal could alleviate a person’s status in life. I believe that teachers share the burden of the parents for encouraging children to learn. It is highly regarded that teachers are the next person who has the power to sway children to a path towards the future. It is natural then that selecting programs and lessons for the students are vital in honing the abilities of the children and to help them learn more. Apt learning tools then are essentially the number one concern of the teachers. If teachers have the power to influence children then it would be necessary that they take the load seriously. A failure on the part of the teacher might become a loss for the child’s chances in the near future. Teachers in this case then would have to create plans that could holistically hone the capabilities and abilities of the children as well as encouraging them towards the path of a future determined to attain better education. The best way to do this then is that the teacher should be able to create plans that are recreational in nature as well as informative. I believe that the best way for creating this atmosphere is for teachers to be able to share the enthusiasm that he/she may have for the particular subject that he/she is teaching. Over enthusiasm might be too much optimism but enough impression could leave a definite mark on the children. I find it helpful to create an atmosphere that knowledge could give us the power. Along with this ambiance are the suitable programs and lessons that would be discussed in class. The first thing to consider then is the instructional levels. This level is where a teacher would gauge his/her lessons to a right medium of instruction that he/she would adopt. Dealing with pre-school students would require patience and a level of instruction fit for the students. Take for example in teaching children to read. It should be noted by the teacher that the best way to do this is for him/her to be able to recognize the reading capabilities of each and every student that he/she is handling. The first thing to notice here then is to see if whether or not the capacities of the students are somewhat in tuned with each other. It seems that there would be instances where reading lessons would elicit different responses form the students. The most important thing that the teacher should be able to grasp here is that in the formative years of the children, there could be instances that learning disabilities might occur. Necessarily, the teacher should be able to identify these problems so that he/she could be able to address these problems. A good start would be for the teachers to encourage children to read aloud in the classroom and establish ways that could gain the participation of the children. There would be instances that a child might be reluctant to read in front of the class since he/she would fear to commit mistakes. That is why encouragement is a best solution. The development levels of each if these students may vary then. The background of the students would have to be taken into consideration. There are natural instances that a student may develop faster than others. So in this case the teacher should be able to devise a plan that would encourage the fast learners without disregarding those who are slow to catch up. It is appropriate this way since this would not promote discrimination. Discrimination might only lead to a child to be discouraged about his/her skills. Aside from the proper instructional level, the teacher should be able to grasp the development levels of each student that she has. A best way to do this is through the non verbal communication between you and the students. A simple frown might be seen in different ways but inside a classroom it could be seen as not being able to understand what was said. As what was implied above, it would then be healthy for teachers to be able to adjust along the way for the benefit of the entirety of the class (Siobhan Leahy, 2005). A good example to address developmental level is for the teacher to realize which level he/she is teaching. A math subject during the formative years would be essential for the secondary level of the students. It would then be advisable that the teacher focus on creating an atmosphere where children would not have to resort memorization but also have the full understanding of what they are memorizing. The next thing to be considered is the learning disabilities of the students. Younger children could have the ability to learn to hide these disabilities that is why teachers are suggested to have constant vigilance. It is not an easy task to know which student have learning disabilities and people could not automatically tell (Learning Disabilities, 2007). An example for this instance is a student who is dyslexic. Having a hard time to decipher words and letters is problem for the students and teachers as well since this could hinder the progress that is needed for the student. What the teacher could do if he/she would encounter this problem is to approach the student in a way that would not embarrass him/her. After such deed would be done, the best way for children to catch up with this disability is for the teacher to suggest tutors for the child. This tutor may be the teacher or a special teacher or the parents of the child who has full knowledge in addressing this problem. Alerting the parents could very well help in this instance. In a classroom setting the teacher could devise a lesson plan that could help by using the other senses of the children. It was said that multi-sensory teaching in the classroom could help improve a child’s learning disability. Perusing of the sense of touch could be helpful by asking the students to have a creative output of the letters or numbers. Creative in a sense that the teacher could make the letters or numbers be available for the sense of touch especially when it could help the children cling to have a tangible image of what they are reading (Bradford, 2000). Going back to the reading levels, a teacher then should be able to use appropriate reading materials that his/her students would need. As I have repeatedly said earlier, students’ reaction to a reading material may vary and their abilities may also vary. In this aspect, the teacher could be able to help the child’s development through the parents or the family. It was said that the family, especially the parents, have a great influence on the child. A home conducive for learning is the best recourse for this problem. Of course this may be a problem since not all households are the same for the children. It would then be the responsibility of the teacher to double her efforts in teaching the children. As was also suggested above, teachers should be flexible enough for the betterment of his/her teaching strategies. It would then be necessary that the teacher could be able to devise a concrete curriculum. This curriculum then could serve as a rough draft of what the teacher ought to achieve by the end of every semester. Naturally, these curriculums are usually rigid. Creating a flexible curriculum then could be the best recourse especially when taking into consideration what was said above. The importance of this alignment of curricular goals is that would generate a standard that the teacher ought to be teaching the child at the same time it could give him/her a better idea of what should be learned in the level of what he/she is teaching. The standard then could be checked through the standards of the school. Making the curriculum flexible then would mean that the standards are there but the activities that would be done would vary from time to time especially when other teachers have a tendency to just create a repetitive scene or method of what they were doing for the past years that they were teaching. Take for example, if a teacher is teaching the basics of math and number then arranging the lesson plan according to the standards set would help and then activities would become flexible according to the necessity that these activities would have for a certain aspect of the subject. Some students seldom aim in ‘getting by’ the subject without full understanding that upon reaching the secondary level of math, they have a hard time grasping the complexities that are presented to them. It is essential then that the teacher choose curriculums and activities fit for the goal of understanding math rather than just letting the students memorize the numbers. Leaving a certain shadow of the numbers in the back of a child’s mind would be helpful. In doing what was suggested as a solution for the learning disability, the teacher could then leave the impression of a memory that the child could easily access in his/her mind. Let’s say the number ‘5’, a string glued to the shape of a ‘5’ could help a child in remembering that a five usually feels like making an‘s’ but with a much rigid first curve above and a horizontal line for the top. The plans and how the teachers execute these plans would have to be taken into consideration. Becoming a teacher is no mean feat especially when you have the power to influence the students and it is up to the teacher therefore on how a student might perceive the educational perspective in life. References Bradford, J. (2000). Using Multisensory Teaching Method.Retrieved September 5, 2007, from http://www. dyslexia-parent. com/mag30. html Learning Disabilities. (2007). Retrieved August 21, 2007, from http://www. kidshealth. org/PageManager. jsp? dn=KidsHealthlic=1article_set=32422cat_id=20167 Siobhan Leahy, C. L. , Marnie Thompson, Dylan Wiliam. (2005). Classroom Assessment: Minute by Minute, Day by Day [Electronic Version]. Assessment to Promote Learning, 63, 19-24. Retrieved August 21, 2007 from http://www. ascd. org/portal/site/ascd/template. MAXIMIZE/menuitem. 459dee008f99653fb85516f762108a0c/? javax. portlet. tpst=d5b9c0fa1a493266805516f762108a0c_ws_MXjavax.portlet. Prp_d5b9c0fa1a493266805516f762108a0c_journaltypeheaderimage=%2FASCD%2Fimages%2Fmultifiles%2Fpublications%2Felmast. gifjavax. portlet. prp_d5b9c0fa1a493266805516f762108a0c_viewID=article_viewjavax. portlet. prp_d5b9c0fa1a493266805516f762108a0c_journalmoid=e9e66a50a9337010VgnVCM1000003d01a8c0RCRDjavax. portlet. Prp_d5b9c0fa1a493266805516f762108a0c_articlemoid=72276a50a9337010VgnVCM1000003d01a8c0RCRDjavax. portlet. prp_d5b9c0fa1a493266805516f762108a0c_journalTypePersonalization=ASCD_ELjavax. portlet. begCacheTok=tokenjavax. portlet. endCacheTok=token.

Church Burnings :: essays research papers

â€Å"Racism Blamed in Shock Wave of Church Burnings,† read the screaming headline in the New York Daily News. â€Å"The South is Burning: A Rash of Torching at Black Churches Has Resurrected the Ugly Specter of Racism,† chimed in the Toronto Star. Newsweek warned of â€Å"Terror in the Night Down South,† While USA Today reported that â€Å"Arson at Black Churches Echoes Bigotry of Past.†(Fumento 1) In the summer of 1996, the U.S. media widely reported a surge in white racist burnings of black churches in the American South. It all started the Center for Democratic Renewal announced a huge increase in arsons against black churches by whites. Black churches were burning at the rate of one per week, mostly due to arson (Swett 2). The media jumped on the story.   Ã‚  Ã‚  Ã‚  Ã‚  The racial church burnings soon became issues of Politicians. President Bill Clinton was running for re-election and desperately needed the votes of the black communities. Clinton made the discrimination issue a priority. Clinton held a White House summit on the issue and assigned the FBI to investigate. Eventually, he passed a law authorizing 12 million dollars to fight arsons of churches. During a passionate speech President Clinton shared that he had, â€Å"vivid and painful memories of black churches being burned in my own state when I was a child.† Ironically, historians and civil rights activists in Arkansas could find no mention of any church arsons in the state during his childhood. Furthermore, Al Gore was quoted â€Å"For a very large number of the burnings, what you will find ultimately, I predict, is that a common thread of underlying racism is present.†(Elven 2)   Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"The church burnings had all the makings of a great story: mystery, race, religion and an eerie echo of the past.†(Heyboer 1). Michael Fumento a journalist for the Wall Street Journal wrote, â€Å"It appears that the public may be finally catching on that the black church burning epidemic of 1996 is actually one of the biggest hoaxes to come along in years.† In fact, independent investigations by several reporters, including those at the Associated press, The New Yorker and USA Today have revealed no plague and little evidence of racism. Michael Kelly, reported that fires at churches both white and black had sharply decreased since 1980, and that the overall number in 1994 was the lowest in fifteen years. Kelly explains the rise in church burnings was impart because of copycat arsons who may have been racist but who also had been inspired by the media attention given to the fires.

Enzyme Experiments :: Free Essays

Enzyme Experiments Central Experiment: The Action Of An Enzyme, e.g., amylase converting starch to reducing sugar. 1. Substrate: starch - use the same volume of the same starch solution each time 2. Enzyme: amylase - use the same volume of the same amylase solution each time 3. Only use starch and amylase solutions that test negative for reducing sugar with Benedict's Reagent 4. Four test tubes individually one third full of (a) starch solution, (b) amylase solution, (c) starch solution and (d) water 5. Warm all to 37Â °C in a heated water bath at 37Â °C 6. Mix (a) and (b) - the experiment. Mix (c) and (d) - the control 7. Use a buffer to maintain the pH at a constant suitable value: pH 8 8. Every minute test a small sample of each for starch using iodine 9. Control Results: always blue-black - starch always present, starch not broken down 10. Experiment Result: eventually a yellow-brown colour - starch is not present, it has been broken down 11. Now test the experiment solution for reducing sugar using Benedict's Reagent. Result: brick-red colour formed - reducing sugar is now present 12. Repeat the entire procedure many times to verify the results 13. Conclusion: amylase converts starch to reducing sugar. Only when amylase is present does starch disappear and reducing sugar appear Note: Fehlings can be used to test for reducing sugar. Experiment: To Determine the Effect of Enzyme Concentration on the Rate of Enzyme Action. Same as the central experiment, at different amylase concentrations, as far as 10. Make up different dilutions of the amylase solution by adding increasing amounts of water.

Ethical Business Dilema

Ethical Dilemma Analysis through the 8 questions model by Arthur Dobrin Case 1 – Rental Applicant 1. Facts †¢African-American applicant †¢Stable work history †¢More than enough income to cover the rent †¢Good references from their previous landlord †¢A couple with one young son (Family) †¢Before applicants accepted, rental agent should have done a background check as a standard procedure. 2. Facts we don’t know †¢Verifications of facts – conduct a cross check oWhether or not the facts provided by the applicant are true ? Income – Salary Statement ?References from landlord – Written letter/call Work History – Stable/Unstable work experience †¢Applicants behavior/habit – past rental history oWhether or not they like to break lease or skip town – leave an unpaid rent †¢The reason for postponing the application oWhat does Kate mean by saying â€Å"in my experience†Ã¢â‚¬ ¦ whether i t’s actually because of her experience dealing with application or racial discrimination. 3. Facts Interpretation †¢Stable work history ? stable – whether they have work long time or not (cross-check credential) †¢A family more likely to be more settled in one place compare to single status individual. A good reference from previous landlord means that the applicant has a good record of being a good tenant. †¢Have more than enough income means that the applicant has the capability to fulfill its obligation of paying the rent. 4. Walk in another’s shoes (problem viewed from others that involved) †¢Kate might give a stereotype view of the African-American applicant 5. Consequences †¢If we don’t take them : oWe might lose a good tenant oWe might lose our business opportunity oWe might build a strict image to prospective customer †¢If we take them : oThere’s a possibility that we end up having a default rent 6. Feelings †¢Megan Perspective : â€Å"Look very good† for their application †¢Kate Perspective : â€Å"Don’t rush their application† – having negative perception †¢Our Perspective : According to our feeling and in combination with the facts given (provided it is true), plus we can also try to determine based on the intuition from the body language given by the applicant, most likely we will accept the applicant. 7. Conscience †¢Yes ? Provided the documents are true. †¢No ? Provided the documents are false. Verification whether the documents are true or false can be done by cross-checking the credential and/or validating the facts. . Explanation and Justification †¢In making decision, it should not be based on personal needs/views or simply intuition/feelings, it should also be based on neutral judgment from the facts given and validation. Given the normal standard procedure that needs to be fulfilled from the background check o f the applicant and by checking thoroughly throughout the facts, the rental agents should be able to make a decision. Case 2 – Sabotage: Menu Not serving the interest of customers fully (by pushing other menu instead). By using healthy food as a bait strategy to attract customers, according to ‘Dave’. . Facts †¢Food is healthy, but the quantity is limited. †¢Coming up with a new menu. †¢Huge expenditure on advertisement. 2. Facts we don’t know †¢Whether the food which is ‘healthy’ is actually healthy. †¢Assumption whether this strategy will last for a long time. †¢Whether or not people will buy fast food even though the menu is being pushed. 3. Facts Interpretation †¢New ‘healthy’ menu was launched by the company to response the public pressure for healthier lunch choices, thus by having new menu, many money involved to train and advertise the new menu. New menu launched priced lower to bring new customers, thus there will be an effect on the company’s profit. †¢The objective of the business is to make money for the shareholders, thus the business need to make profit. Hence, most likely agency problem would occur, which refers to the ethical dilemma between the shareholder interest and the CEO interest. †¢Dave, the store manager, wanted the staff to push the ‘upsize’ menu options and ice creams for dessert, which this refers to an issue of sabotage. 4. Walk in another’s shoes (problem viewed from others that involved) †¢According to Carol, the manager is more inclined towards his own profit. According to Dave it is fast to maximize the profit and his own commission. †¢According to customer, they might be cheated into buying unhealthy food. 5. Consequences †¢By agreeing to Dave, the profit might be higher in the short term, whereas by going against Dave, the company might lose out on the profit. But by keeping the reputatio n of the company, it will help in the long-term profitability. †¢She might lose her own position if she does not agree to Dave plan. †¢But if she doesn’t want to lose her job, then most likely she will have her personal issue. 6. Feelings If she agrees to Dave, she will be safe, but if she goes against him, she might lose her job. (personal dilemmas) 7. Conscience †¢In order to save the job, Carol might let her inner conscience take the back seat, because this is cognitive resonance within herself. Her decision will be based on how she feels, whether it is good or bad. 8. Explanation and Justification †¢If ‘yes’, she can say that her boss asked her to do so. †¢If she says ‘no’, she can say her inner conscience didn’t allow her and in the long run, it won’t be beneficial to the consumer and the company.

Carmilla the Lover and Monster Essay

The story of Carmilla is one that shows the complexity that mankind is capable of. This story shows how loving and caring mankind can be and how monstrous we can become without knowing how or why we became so monstrous. Carmilla meets the criteria to be called a lover and monster. Love is a virtue representing human kindness compassion and/or affection. Out of love Carmilla slowly drains the life out of Laura so she can turn her into a lifelong companion. But to die as lovers may–to die together, so that they may live together. Girls are caterpillars while they live in the world, to be finally butterflies when the summer comes; but in the meantime there are grubs and larvae, don’t you see–each with their peculiar propensities, necessities and structure. So says Monsieur Buffon, in his big book, in the next room. † Sometimes it was as if warm lips kissed me, and longer and longer and more lovingly as they reached my throat, but there the caress fixed itself. My heart beat faster, my breathing rose and fell rapidly and full drawn; a sobbing, that rose into a sense of strangulation, supervened, and turned into a dreadful convulsion, in which my senses left me and I became unconscious. This shows that Carmilla despite being a vampire has retained the human ability to love. She wishes to have friends and the only way to accomplish this task is to turn humans into vampires. She also has the characteristics that many would call monstrous. As a vampire, Carmilla needed blood to sustain her existence. As humans hunt for sustenance so did Carmilla, she obtained sustenance where ever she could without disrupting her relationship with Laura. As we sat thus one afternoon under the trees a funeral passed us by. It was that of a pretty young girl, whom I had often seen, the daughter of one of the rangers of the forest. The poor man was walking behind the coffin of his darling; she was his only child, and he looked quite heartbroken . â€Å"I hope there is no plague or fever coming; all this looks very like it,† I continued. The swineherd’s young wife died only a week ago, and she thought something seized her by the throat as she lay in her bed, and nearly strangled her. Papa says such horrible fancies do accompany some forms of fever. She was quite well the day before. She sank afterwards, and died before a week†. If Carmilla was just a monster she would have killed everyone in the area just to continue her existence and then moved on to another area to find sustenance. That is not the case here in this shows that certain things are not always as they seem. Carmilla believes her existence is better than that of the human and in many ways she is correct. She does not know illness of any sort and because of her longevity. She has been a vampire for over 100 years. â€Å"She ? I don’t trouble my head about peasants. I don’t know who she is,† answered Carmilla, with a flash from her fine eyes. â€Å"The house of Karnstein,† he said, â€Å"has been long extinct: a hundred years at least. My dear wife was maternally descended from the Karnsteins. But the name and title have long ceased to exist. The castle is a ruin; the very village is deserted; it is fifty years since the smoke of a chimney was seen there; not a roof left†. Carmilla in a twisted way shows the good and evil that has existed in our world for many millennia. She has the ability to love but for her to love long-term she must kill the object of her affection. As twisted as many would perceive this is a fair reflection upon mankind over the generations. Mankind has been doing strange things to find and hold on to what they believed they love for as long as we have been in existence. The existence of vampires such as in the text Camilla is imaginary but the actions of vampires are mirrored in many aspects by the actions of man!

3 D Optical Storage

3-D OPTICAL DATA STORAGE TECHNOLOGY * *ABSTRACT 3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three dimensional resolution (as opposed to the two dimensional resolution afforded, for example, by CD). Current optical data storage media, such as the CD and DVD store data as a series of reflective marks on an internal surface of a disc. In order to increase storage capacity, it is possible for discs to hold two or even more of these data layers, but their number is severely limited since the addressing laser interacts with every layer that it passes through on the way to and from the addressed layer. These interactions cause noise that limits the technology to approximately 10 layers. 3D optical data storage methods circumvent this issue by using addressing methods where only the specifically addressed voxel (volumetric pixel) interacts substantially with the addressing light. This necessarily involves nonlinear data reading and writing methods, in particular non linear optics. 3D optical data storage is related to (and competes with) holographic data storage. Traditional examples of holographic storage do not address in the third dimension, and are therefore not strictly â€Å"3D†, but more recently 3D holographic storage has been realized by the use of microholograms. Layer-selection multilayer technology (where a multilayer disc has layers that can be individually activated e. g. electrically) is also closely related. This innovation has the potential to provide terabyte-level mass storage on DVD-sized disks. Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point. 1. Overview: Current optical data storage media, such as the CD and DVD store data as a series of reflective marks on an internal surface of a disc. In order to increase storage capacity, it is possible for discs to hold two or even more f these data layers, but their number is severely limited since the addressing laser interacts with every layer that it passes through on the way to and from the addressed layer. These interactions cause noise that limits the technology to approximately 10 layers. 3D optical data storage methods circumvent this issue by using addressing methods w here only the specifically addressed voxel (volumetric pixel) interacts substantially with the addressing light. This necessarily involves nonlinear data reading and writing methods, in particular nonlinear optics. 3D optical data storage is related to (and competes with) holographic data storage. Traditional examples of holographic storage do not address in the third dimension, and are therefore not strictly â€Å"3D†, but more recently 3D holographic storage has been realized by the use of microholograms. Layer-selection multilayer technology (where a multilayer disc has layers that can be individually activated e. g. electrically) is also closely related. Schematic representation of a cross-section through a 3D optical storage disc (yellow) along a data track (orange marks). Four data layers are seen, with the laser currently addressing the third from the top. The laser passes through the first two layers and only interacts with the third, since here the light is at a high intensity. As an example, a prototypical 3D optical data storage system may use a disk that looks much like a transparent DVD. The disc contains many layers of information, each at a different depth in the media and each consisting of a DVD-like spiral track. In order to record information on the disc a laser is brought to a focus at a particular depth in the media that corresponds to a particular information layer. When the laser is turned on it causes a photochemical change in the media. As the disc spins and the read/write head moves along a radius, the layer is written just as a DVD-R is written. The depth of the focus may then be changed and another entirely different layer of information written. The distance between layers may be 5 to 100 micrometers, allowing >100 layers of information to be stored on a single disc. In order to read the data back (in this example), a similar procedure is used except this time instead of causing a photochemical change in the media the laser causes fluorescence. This is achieved e. g. by using a lower laser power or a different laser wavelength. The intensity or wavelength of the fluorescence is different depending on whether the media has been written at that point, and so by measuring the emitted light the data is read. It should be noted that the size of individual chromophore molecules or photoactive color centers is much smaller than the size of the laser focus (which is determined by the diffraction limit). The light therefore addresses a large number (possibly even 109) of molecules at any one time, so the medium acts as a homogeneous mass rather than a matrix structured by the positions of chromophores. 2. History: The origins of the field date back to the 1950s, when Yehuda Hirshberg developed the photochromic spiropyrans and suggested their use in data storage. [3] In the 1970s, Valeri Barachevskii demonstrated that this photochromism could be produced by two-photon excitation, and finally at the end of the 1980s Peter T. Rentzepis showed that this could lead to three-dimensional data storage. [5] This proof-of-concept system stimulated a great deal of research and development, and in the following decades many academic and commercial groups have worked on 3D optical data storage products and technologies. Most of the developed systems are based to some extent on the original ideas of Rentzepis. A wide range of physical phenomena for data reading and recording have been investigated, large numbers of chemical systems for the medium have been developed and evaluated, and extensive work has been carried out in solving the problems associated with the optical systems required for the reading and recording of data. Currently, several groups remain working on solutions with various levels of development and interest in commercialization. *3. Processes for creating written data*: Data recording in a 3D optical storage medium requires that a change take place in the medium upon excitation. This change is generally a photochemical reaction of some sort, although other possibilities exist. Chemical reactions that have been investigated include photoisomerizations, photodecompositions and photobleaching, and polymerization initiation. Most investigated have been photochromic compounds, which include azobenzenes, spiropyrans, stilbenes, fulgides and diarylethenes. If the photochemical change is reversible, then rewritable data storage may be achieved, at least n principle. Also, multilevel recording, where data is written in ‘grayscale’ rather than as ‘on’ and ‘off’ signals, is technically feasible. 3. 1 Writing by non*-*resonant multiphoton absorption Although there are many nonlinear optical phenomena, only multiphoton absorption is capable of injecting into the media the significant energy required to electronically excite molecular species and cause chemical reactions. Two-photon absorption is the strongest multiphoton absorbance by far, but still it is a very weak phenomenon, leading to low media sensitivity. Therefore, much research has been directed at providing chromophores with high two-photon absorption cross-sections. Two photon absorption (TPA) is the simultaneous absorption of two photons of identical or different frequencies in order to excite a molecule from one state (usually the ground state) to a higher energy electronic state. The energy difference between the involved lower and upper states of the molecule is equal to the sum of the energies of the two photons. Two-photon absorption is a second-order processes several orders of magnitude weaker than linear absorption. It differs from linear absorption in that the strength of absorption depends on the square of the light intensity, thus it is a nonlinear optical process Writing by 2-photon absorption can be achieved by focusing the writing laser on the point where the photochemical writing process is required. The wavelength of the writing laser is chosen such that it is not linearly absorbed by the medium, and therefore it does not interact with the medium except at the focal point. At the focal point 2-photon absorption becomes significant, because it is a nonlinear process dependent on the square of the laser fluence. Writing by 2-photon absorption can also be achieved by the action of two lasers in coincidence. This method is typically used to achieve the parallel writing of information at once. One laser passes through the media, defining a line or plane. The second laser is then directed at the points on that line or plane that writing is desired. The coincidence of the lasers at these points excited 2-photon absorption, leading to writing photochemistry. 3. 2 Writing by sequential multiphoton absorption Another approach to improving media sensitivity has been to employ resonant wo-photon absorption (also known as â€Å"1+1† or â€Å"sequential† 2-photon absorbance). Nonresonant two-photon absorption (as is generally used) is weak since in order for excitation to take place, the two exciting photons must arrive at the chromophore at almost exactly the same time. This is because the chromophore is unable to interact with a single photon alone. However, if the chromophore has an ene rgy level corresponding to the (weak) absorption of one photon then this may be used as a stepping stone, allowing more freedom in the arrival time of photons and therefore a much higher sensitivity. However, this approach results in a loss of nonlinearity compared to nonresonant 2-photon absorbance (since each 1-photon absorption step is essentially linear), and therefore risks compromising the 3D resolution of the system. 3. 3 Microholography In microholography, focused beams of light are used to record submicrometre-sized holograms in a photorefractive material, usually by the use of collinear beams. The writing process may use the same kinds of media that are used in other types of holographic data storage, and may use 2-photon processes to form the holograms. . 4 Data recording during manufacturing Data may also be created in the manufacturing of the media, as is the case with most optical disc formats for commercial data distribution. In this case, the user cannot write to the disc – it is a ROM format. Data may be written by a nonlinear optical method, but in this case the use of very high power lasers is acceptable so media sensitivity becomes less of an issue. The fabrication of discs containing data molded or printed into their 3D structure has also been demonstrated. For example, a disc containing data in 3D may be constructed by sandwiching together a large number of wafer-thin discs, each of which is molded or printed with a single layer of information. The resulting ROM disc can then be read using a 3D reading method. 3. 5 Other approaches to writing Other techniques for writing data in three-dimensions have also been examined, including: Persistent *spectral** **hole burning* (PSHB), which also allows the possibility of spectral multiplexing to increase data density. However, PSHB media currently requires extremely low temperatures to be maintained in order to avoid data loss. Void* formation, where microscopic bubbles are introduced into a media by high intensity laser irradiation. [7] Chromophore poling, where the laser-induced reorientation of chromophores in the media structure leads to readable changes. *4. Processes for reading data*: The reading of data from 3D optical memories has been carried out in many different ways. While some of these rely on the nonlinearity of the light-matter interaction to obtain 3D resolution, others use methods that spatially filter the media's linear response. Reading methods include: Two photon absorption (resulting in either absorption or fluorescence). This method is essentially two-photon-microscopy. Linear excitation of fluorescence with confocal detection. This method is essentially confocal laser scanning microscopy. It offers excitation with much lower laser powers than does two-photon absorbance, but has some potential problems because the addressing light interacts with many other data points in addition to the one being addressed. Measurement of small differences in the refractive index between the two data states. This method usually employs a phase contrast microscope or confocal reflection microscope. No absorption of light is necessary, so there is no risk of damaging data while reading, but the required refractive index mismatch in the disc may limit the thickness (i. e. number of data layers) that the media can reach due to the accumulated random wavefront errors that destroy the focused spot quality. Second harmonic generation has been demonstrated as a method to read data written into a poled polymer matrix. Optical coherence tomography has also been demonstrated as a parallel reading method. *5. Media *design: The active part of 3D optical storage media is usually an organic polymer either doped or grafted with the photochemically active species. Alternatively, crystalline and sol-gel materials have been used. 5. 1 Media form factor Media for 3D optical data storage have been suggested in several form factors: Disc. A disc media offers a progression from CD/DVD, and allows reading and writing to be carried out by the familiar spinning disc method. Card. A credit card form factor media is attractive from the point of view of portability and convenience, but would be of a lower capacity than a disc. Crystal, Cube or Sphere. Several science fiction writers have suggested small solids that store massive amounts of information, and at least in principle this could be achieved with 3D optical data storage. 5. 2 Media manufacturing The simplest method of manufacturing – the molding of a disk in one piece – is a possibility for some systems. A more complex method of media manufacturing is for the media to be constructed layer by layer. This is required if the data is to be physically created during manufacture. However, layer-by-layer construction need not mean the sandwiching of many layers together. Another alternative is to create the medium in a form analogous to a roll of adhesive tape. *6. Drive design*: A drive designed to read and write to 3D optical data storage media may have a lot in common with CD/DVD drives, particularly if the form factor and data structure of the media is similar to that of CD or DVD. However, there are a number of notable differences that must be taken into account when designing such a drive, including: Laser. Particularly when 2-photon absorption is utilized, high-powered lasers may be required that can be bulky, difficult to cool, and pose safety concerns. Existing optical drives utilize continuous wave diode lasers operating at 780 nm, 658 nm, or 405 nm. 3D optical storage drives may require solid-state lasers or pulsed lasers, and several examples use wavelengths easily available by these technologies, such as 532 nm (green). These larger lasers can be difficult to integrate into the read/write head of the optical drive. Variable spherical aberration correction. Because the system must address different depths in the medium, and at different depths the spherical aberration induced in the wavefront is different, a method is required to dynamically account for these differences. Many possible methods exist that include optical elements that swap in and out of the optical path, moving elements, adaptive optics, and immersion lenses. Optical system. In many examples of 3D optical data storage systems, several wavelengths (colors) of light are used (e. g. eading laser, writing laser, signal; sometimes even two lasers are required just for writing). Therefore, as well as coping with the high laser power and variable spherical aberration, the optical system must combine and separate these different colors of light as required. Detection. In DVD drives, the signal produced from the disc is a reflection of the addressing laser beam, and is therefore very intense. For 3D optical storage however, the signal mus t be generated within the tiny volume that is addressed, and therefore it is much weaker than the laser light. In addition, fluorescence is radiated in all directions from the addressed point, so special light collection optics must be used to maximize the signal. Data tracking. Once they are identified along the z-axis, individual layers of DVD-like data may be accessed and tracked in similar ways to DVD discs. The possibility of using parallel or page-based addressing has also been demonstrated. This allows much faster data transfer rates, but requires the additional complexity of spatial light modulators, signal imaging, more powerful lasers, and more complex data handling. *7. Development issues*: Despite the highly attractive nature of 3D optical data storage, the development of commercial products has taken a significant length of time. This results from limited financial backing in the field, as well as technical issues, including: Destructive reading. Since both the reading and the writing of data are carried out with laser beams, there is a potential for the reading process to cause a small amount of writing. In this case, the repeated reading of data may eventually serve to erase it (this also happens in phase change materials used in some DVDs). This issue has been addressed by many approaches, such as the use of different absorption bands for each process (reading and writing), or the use of a reading method that does not involve the absorption of energy. Thermodynamic stability. Many chemical reactions that appear not to take place in fact happen very slowly. In addition, many reactions that appear to have happened can slowly reverse themselves. Since most 3D media are based on chemical reactions, there is therefore a risk that either the unwritten points will slowly become written or that the written points will slowly revert to being unwritten. This issue is particularly serious for the spiropyrans, but extensive research was conducted to find more stable chromophores for 3D memories. Media sensitivity. 2-photon absorption is a weak phenomenon, and therefore high power lasers are usually required to produce it. Researchers typically use Ti-sapphire lasers or Nd:YAG lasers to achieve excitation, but these instruments are not suitable for use in consumer products. *8. Academic development*: Much of the development of 3D optical data storage has been carried out in universities. The groups that have provided valuable input include: Peter T. Rentzepis was the originator of this field, and has recently developed materials free from destructive readout. *Watt W. Webb* co developed the two-photon microscope in Bell Labs, and showed 3D recording on photorefractive media. Masahiro Irie developed the diarylethene family of photochromic materials. [13] Yoshimasa Kawata, *Satoshi Kawata* and Zouheir Sekkat have developed and worked on several optical data manipulation systems, in particular involving poled polymer systems. 14] Kevin C Belfield is developing photochemical systems for 3D optical data storage by the use of resonance energy transfer between molecules, and also develops high 2-photon cross-section materials. Seth Marder performed much of the early work developing logical approaches to the molecular design of high 2-photon cross-section chromophores. Tom Milster has made many contributions to the theory of 3D optical data storage. Robert McLeod has examine d the use of microholograms for 3D optical data storage. Min Gu has examined confocal readout and methods for its enhancement. 9 Commercial development*: In addition to the academic research, several companies have been set up to commercialize 3D optical data storage and some large corporations have also shown an interest in the technology. However, it is not yet clear whether the technology will ever come to market in the presence of competition from other quarters such as hard drives, flash storage, holographic storage and internet-based storage. Examples of 3D optical data storage media. Top row – Written Call/Recall media; Mempile media. Middle row – FMD; D-Data DMD and drive. Bottom row – Landauer media; Microholas media in action. Call/Recall was founded in 1987 on the basis of Peter Rentzepis' research. Using 2-photon recording (at 25 Mbit/s with 6. 5 ps, 7 nJ, 532 nm pulses), 1-photon readout (with 635 nm), and a high NA (1. 0) immersion lens, they have stored 1 TB as 200 layers in a 1. 2 mm thick disk. [23] They aim to improve capacity to >5 TB and data rates to up to 250 Mbit/s within a year, by developing new materials as well as high-powered pulsed blue laser diodes. Mempile are developing a commercial system with the name TeraDisc. In March 2007, they demonstrated the recording and readback of 100 layers of information on a 0. mm thick disc, as well as low crosstalk, high sensitivity, and thermodynamic stability. [25] They intend to release a red-laser 0. 6-1. 0 TB consumer product in 2010, and have a roadmap to a 5 TB blue-laser product. [26] *Constellation 3D* developed the Fluorescent Multilayer Disc at the end of the 1990s, which was a ROM disk, manufactured layer by layer. The company failed in 200 2, but the intellectual property (IP) was acquired by D-Data Inc. who are attempting to introduce it as the Digital Multilayer Disk (DMD). Storex Technologies has been set up to develop 3D media based on fluorescent photosensitive glasses and glass-ceramic materials. The technology derives from the patents of the Romanian scientist Eugen Pavel, who is also the founder and CEO of the company. First results, 40 nm marks recorded into 3D virtual layers separated by 700 nm, were presented in October 2009 at the ISOM2009 conference. Landauer inc. are developing a media based on resonant 2-photon absorption in a sapphire single crystal substrate. In May 2007, they showed the recording of 20 layers of data using 2 nJ of laser energy (405 nm) for each mark. The reading rate is limited to 10 Mbit/s because of the fluorescence lifetime. Colossal Storage aim to develop a 3D holographic optical storage technology based on photon induced electric field poling using a far UV laser to obtain large improvements over current data capacity and transfer rates, but as yet they have not presented any experimental research or feasibility study. Microholas operates out of the University of Berlin, under the leadership of Prof Susanna Orlic, and has achieved the recording of up to 75 layers of microholographic data, separated by 4. micrometres, and suggesting a data density of 10 GB per layer. [33] 3DCD Technology Pty. Ltd. is a university spin-off set up to develop 3D optical storage technology based on materials identified by Daniel Day and Min Gu. Several large technology companies such as Fuji, Ricoh and Matsushita have applied for patents on 2-photon-responsive materials for applications including 3D optical data storage, however they have not giv en any indication that they are developing full data storage solutions.