Token Economy Essay Example

Token Economy Essay Example Token Economy Paper Token Economy Paper The mode of action of Token Economy aims to increase the frequency of a patients desirable behaviours and decrease that of the undesirably behaviours. Tokens are used to dignify reinforcement and are used as part of a reinforcement schedule. Punishment is implemented by the withdrawal of tokens. There are six main steps: 1. the target behaviour is identified (reinforcement or punishment)  2. the nature of the token is identified  3. depending on how many tokens individual receive over the day, they will get a certain number of desired items.  4. the exchange rate is determined (20 tokens for 1 chocolate bar)  5. the location and time of day in which the tokens are exchanged is determined. Allyon and Azrin (1968), pioneered the Token Economy system, found that tokens were most effective when associated with behaviours already in a patients repertoires.  OLeary et al (1969) had no success witgh a behaviour modification programme byt found that a Token Economy system reduced disruptive behaviour in 5 out of 7 children studied.  Token Economies are important because, even though the introduction of chemotherapy in the 1950s meant that mental patients could live in community settings, this transition to community living required more than symptom reduction; living skills also had to be improved. (Lecomte et al, 2000). Most studies do not indicate whether desirable behaviours continue when tokens stop or whether the learning that takes place is an institutional setting generalizes to other settings. Furthermore, there is the issue of cure. Behaviour may change, which helps an individual to conduct a more normal life, but the mental illness remains (Comer, 2002). The method is expensive and time consuming: maintaining it required intensive training and concentrated effort, whereas simpler behaviour modification techniques may be just as effective and easier. Finally there is the problem of establishing effective rewards. To be successful, these must be tailored to the individual.  Like behaviour modification programmes, Token Economy is manipulative; Corrigan (1995) claimed that they are also abusive and humiliating. Withholding privileges and basic rights has been rules unethical by US courts (Emmelkamp, 1994).

Physics IA bouncing ball Essay Example

Physics IA bouncing ball Essay Example Physics IA bouncing ball Paper Physics IA bouncing ball Paper 1. Put the ruler perpendicular to the flat surface.  2. Place the ruler in the arm of the metal stand and secure it tight so that the ruler can stay still; it must be perpendicular to the surface and parallel to the stand.  3. Grab the rubber ball and place it with one hand besides the 10cm mark in the ruler.  4. With the other hand have the chronometer in 0 seconds and be ready because as you are going to release the ball you have to start the count in the chronometer.  5. Drop the ball and start the count in the chronometer simultaneously. 6. Wait until the ball to stop bouncing completely, this is, wait for the ball to start rolling so that you can see movement just in the horizontal way or x-axis and not in the vertical way or y-axis, and in that specific time, stop the count.  7. In your physics lab table write the resultant time t for the height h of 10cm.  8. Repeat steps 3-6 twice and write the multiple resultant times in your physics lab table in order to have three time samples. This is for avoiding random errors.  9. Continue the pattern of releasing the ball from each multiple of 10 until reaching 100cm, measuring three times from each multiple of 10cm. Write the results in your physics lab table. 10. Calculate the average of the three times you measure for each multiple of 10cm to 100cm by using this formula:  Taverage= (T1+T2+T3)/3  and write it in your physics lab table in an extra column.  For more accurate results:  -Do not move the experiment while taking your measurements. If you change the place of the experiment, the surface texture, evenness, or slope may change as well, making the results less accurate.  -Use the SAME ball throughout all the experiment; each ball has in general the same characteristics, except that they usually are not perfectly round and they have different sizes and masses. By using the same ball you are increasing accuracy in your measurements. Uncerntanties The uncertainty of the dependant variable, which is the time t, is 0.35 s. This has been measured by subtracting the smallest value to the greatest value of time in every measurement of the height, and then the result of that was divided by 2. It can be better explained with this equation:  After that, the greatest difference of all the results is going to be the one that is chosen to be the uncertainty of time in every measure of height. In this experiment the greatest difference was found in the value of height 80cm, which was 0.35 because. Therefore, 3.5 is going to be the uncertainty of time. All values of time have been rounded to 0.10cm.  The uncertainty of the independent variable, which is the height h, is 0.1cm. This has been settled without any formal guidelines; the factor that just the human eye is used for this experiment and no other more accurate mechanism, gives an uncertainty because the human being is not perfect when measuring something. In this case, the hand can shake at the point of the ruler, or just the perspective of the experimenter can create some error coefficient when measuring the height using a ruler. All values of height have been rounded to 0.1cm.  The following graph was made with Logger Pro Software. I included the uncertainty bars and the computer generated the best straight line and determined the gradient.  Now, the graph is repeated with maximum and minimum gradients based on the extremes of the first and last data point uncertainty bars. Conclusion and Evaluation In Figure 1.3, which is the first graph of our results, there seems to be a direct relationship between the increase of time and the increase of height in the experiment. The straight line that the computer generated shows an increase in both x and y axes which represent the height and the time, respectively.  I can conclude by saying that the experiment of releasing a ball at certain heights, that in this case they were from 10cm in multiples of 10 till reaching a meter, and measuring multiple times to get an average, that in this case was measuring 3 times per measure of height the time it took for the ball to stop bouncing completely and then making a average time, that the hypothesis of height being proportional to time was right and has been proved by analyzing the results and graphs. Time t and the height h were proportional to each other because in the result graph we find a straight line with a slope that proves that proportionality. This makes the experiment successful because the objective of proving the hypothesis was achieved.  After analyzing these factors, the answer to the question How does altering the height when releasing a bouncing rubber ball affect the time until its complete rest in the vertical sense or y-axis? is that as the height increases where the ball is released, it is going to take more time until its rest in the vertical sense, and in the other hand, as the height decreases, the ball is going to take less time to stop bouncing. Problems and Improvement Originally, the experiment was meant to measure the time until the ball reached complete rest (in both x and y axes) so that it could be easy to stop the chronometer and be more accurate. The problem was that the ball would roll on the floor, and as the floor is an even texture, the ball would stop completely taking a lot of time doing it, and sometimes the time it would take to stop in some cases would be very different to other cases because the ball rolls in different directions every time. Changing the experiment of measuring the time until the ball achieved complete rest to measuring time till the ball achieved complete rest in the vertical sense or the y-axis was the solution to overcome this problem. It created a minor problem though. The problem is that the eye cant really see when the ball stops bouncing completely because there are some bounces in the y-axis that cannot be seen by the human eye because they are really minor, making the stopping of the chronometer count a little subjective and decreasing the accuracy of the experiment.

Elderly people should be required to take road tests before having Essay - 1

Elderly people should be required to take road tests before having their driving licences renewed. or The legal age for drinking ought to be lower in the United States as it is in many European countries - Essay Example The older that a person gets, the more their sight and hearing suffer. Their vision becomes bad and many can become blind or develop cataracts. While many wear glasses or contacts when they are driving, there are still those that are in denial about having problems with their eyesight and insist on driving with their eye troubles. The same thing can be said for their hearing; many elderly people resort to hearing aids, but others do not. When these elderly people are on the road without help for their eyesight or hearing, they become less aware of what is taking place around them (Dugan 127). They have to strain to see what is around them, being unaware of merging cars or changing traffic signals, and they may not hear emergency vehicles or cars honking at them to avoid a potential accident. Similarly, their reaction times and reflexes are not as quick as when they were younger. Not only are many of them unaware of their surroundings, but when they are aware they are not as quick to react. If a car is merging into their lane, elderly people are slower to get out of the way, often causing a collision (Schaie & Pietrucha 96). They sometimes merge into another lane without noticing another vehicle; if the other vehicle were to honk, the elderly driver might not hear it, and if they do, they might not be able to merge back over in time. Many car accidents are caused by the elderly because of their inability to react quick enough to avoid an accident, such as accidents in which they mistake the gas pedal for the brake and are unable to correct their mistake in time. With old age comes many health issues, and with these health issues comes medications with horrible side effects. Elderly people can experience heart attacks while they are driving, which can cause accidents; many of them are also driving while experiencing certain disorders, such as dementia or Alzheimer’s disease. While these

Compare two company Essay Example | Topics and Well Written Essays - 3500 words

Compare two company - Essay Example Charles Boot headed the efforts of company to obtain various government contracts during the war period. It is rather an achievement that 1000 military buildings and over 50 miles of roads were constructed within one year during Great War. During the years 1919 – 1939 inter-war period, Henry Boot built over 80,000 houses which were more than any other contractor in United Kingdom. Henry Boot Plc under the leadership of Charles Boot developed Pinewood Studios at Heatherden Hall, Iver, Buckinghamshire during 1936, which was based on the layout and practice of USA film studio. The company acquired Baldry, Yerburgh and Hutchinson Limited and Flettons Limited and company started to undertake all types of construction work, large and small, both for the public and private sector. Company’s turnover continued to increase in the areas of building and civil engineering which included long term contract for the National Coal Board and British Steel Corporation, railway engineerin g contracting, joinery manufacture and houses for sale. Henry Boot Plc formed subsidiary in the name of Banner Building Society to offer mortgages to general public for commercial and residential properties. The expansion of Henry Boot Plc continued with the acquisition of a foundry in Bingley, West Yorkshire in 1974 and during 1976 the company saw an increase in overseas work initially with the collaboration of Hong Kong based Gammon in supplying and laying the tracks for Mass Transit Railway System followed by  £13 million railway sub-contract on the Kowloon-Canton Railway in Australia. Later, Henry Boot Plc acquired Thos W. Ward (Railway Engineers) Limited of Sandiacre in order to strengthen the group’s railway engineering activity which was followed by the prestigious Queen’s Award for Export Achievement. The company’s core activities are property development, land management, construction and plant hire. Presently Henry Boot Plc is

Video games Essay Example for Free

Video games Essay Today, video games have become the most popular means of entertainment throughout our world. More than three-quarters of American youths have video-game consoles, and on a typical day at least 40 percent play a video game. Moreover, recently there has been a wide range of studies by professors throughout the world all focusing on the idea of whether or not video games are causing the youth to become a more illogical violent society in the future. Moreover, some people believe they are just a waste of precious time. However, they have been proven by many scholars that they are not only the best means of entertainment, but also one of the best sources of learning and improving brain performance and strategies, speed of alertness and decision making, and problem solving skills. Coming up with good strategies can be very handy for our lives whether it be in business, learning, teaching, etc. Nowadays video games have been proved to make people smarter towards creative strategy thinking. For example, it has been stated that â€Å"While there are many games that place a premium on strategy, most set an overall goal and give the gamer numerous ways in which he or she can achieve that goal. † Vila, Monica. 7 Reasons Why Your Son Should Play Video Games. http://www. babble. com/. N. p. , 04 Feb 2013. Web. 4 Nov. 2013. Video games teach kids to think objectively about both the games themselves and their own performance. In addition, players also get instant feedback on their decisions and quickly learn their own strengths and weaknesses through try and error since they get unlimited lives in a video game. Video games have a great effect on the youth regarding decision making. Some researchers compared action video-gamers and non-gamers with a series of simple decision-making experiments. Gamers devoted at least five hours weekly in the year before the experiment to playing action video games, such as Grand Theft Auto: San Andreas and Halo 2. They presented volunteers with arrays of dots, asked them to identify which way the dots were moving, and varied the number of dots moving in the same direction to make the task easier or harder. Video games get kids to think. There are dozens of video games that are specifically geared towards learning, but even the most basic shooter game teaches kids to think logically and quickly process large amounts of data. Rather than passively absorbing content from, say, a TV show, a video game requires the player’s constant input to tell the story. Moreover, well known sources such as the video games CQ research proved this characteristic about video gaming â€Å"Games stress taking your knowledge and applying it. That’s pretty crucial in the modern world,† says University of Wisconsin Professor of Reading James Gee. † Glazer, Sarah. Video Games. Congressional Quarterly, 2006. 939. Print. Indeed, the argument that video and computer games are superior to school in helping children learn as gaining currency in academic circles. Claimed benefits include improved problem-solving, mastery of scientific investigation and the ability to apply information learned to real-life situations. In conclusion, as you have seen, there is more than just killing and violence in video games. Our future children should be more exposed to video games not only for ways of entertainment, but also for the sake of improving their intelligence whether it be in creating new strategies, enhancing problem solving skills, or even allowing them to make better life decisions.

How To Surf The Internet :: essays research papers

How to Surf the Internet The term "Internet," or "The Net" as it is commonly in known in the computer business, is best described as an assortment of over one thousand computer networks with each using a common set of technical transfers to create a worldwide communications medium. The Internet is changing, most profoundly, the way people conduct research and will in the near future be the chief source of mass information. No longer will a student have to rely on the local library to finish a research essay - anybody with a computer, a modem, and an Internet Service Provider can find a wealth of information on the Net. Anybody with a disease or illness and who has access to the Internet can obtain the vital information they are in need of. And, most importantly, businesses are flourishing at this present day because of the great potential the Internet holds. First of all, for a person to even consider doing research on the Internet privately they must own a computer. A computer that is fast, reliable, and one that has a great deal of memory is greatly beneficial. A person also needs a modem (a device that transmits data from a network on the Internet to the user's computer). A modem's quality and speed are measured as something called a baud rate (how fast the modem transmits data in bits and kilobits - similar to grams and kilograms). A kilobit is a term simply used to describe the speed of a modem. For example, if somebody was to go out and purchase a 2400 baud modem, they would be buying a modem that transmits data 2400 kilobits per second which is definitely not the speed of a modem you want if your thinking of getting onto the Internet. The speeds of modems then double in the amount of kilobits that can be transmitted per second going from 4800 baud to 9600 baud and so on eventually getting up to 28800 baud (which is the fastest modem on the market right now). To surf the Internet successfully, a person will have to own a 9600 baud or higher, and with recent advancements the Internet has offered, the recommended speed is a 14400 kilobytes per second modem. A modem ranges in price, depending on the type of modem you want, the speed you need, and if it is an external or internal type, modems range from as low as $20 to as high as $300. If a person is unequipped with a computer most local libraries and nonprofit organizations provide Internet access where research can be done freely.

Cheerleading Captain Essay

There are many different opinions out there about cheerleaders, many good, and many bad. Some think of them as the girls standing by the football field, but I think of cheerleading as a symbol of all the spirit that we can share, and a token of appreciation toward the team that’s being cheered on. Cheerleading is such a vital part to many sections of the school. If I, Nina Guenther, am chosen to be a captain for the Burrell High School Junior Varsity squad, I will make sure that everyone has a positive outlook, and the great qualities the squad holds are emphasized.One reason I’d make a great choice for a captain, is that I would be dedicated to the squad, and won’t give up when faced with an obstacle. To me, extra practices, time spent making cheers, organizing stunts, and many of the other things a captain is chosen to do, is not work, but a privilege. These tasks would not bother or frustrate me, because as long as it’d help the girls on my squad, Iâ₠¬â„¢d be happy to do anything to help. I’d handle all obstacles, whether they concern individuals, the squad, a cheer, or a stunt, in an effective way that would help the squad grow.If I were chosen, I’m sure that I could help the squad surpass past years, and I could help every girl on the squad grow and become a better cheerleader. I have a strong belief that the change and growth in others affects you. I remember as I walked into the first tryout practice, last year, how nervous I was. I worked hard throughout that season to sharpen my physical and mental skills. Even though I’m far from perfect, if I continue to learn and get better, then I will influence and persuade others to do better.Growth will not only be seen in the abilities of the squad members, but in their attitudes. If I were a captain, I would make sure that everyone kept a positive outlook and worked harder than ever. Hopefully, by the end of you reading this, you can see how dedicated I am to this squad, and how hard I’ll work to make sure this season is one of the best we’ve ever had. I see a lot of promise in this year, and if I’m chosen as a captain, this squad’s full potential will be realized. Cheerleading, to me, isn’t just about standing on sidelines yelling cheers.It’s about how a group of people can support another group through their spirit. It’s not about bows or matching outfits, either, it’s about how people can come together to achieve something. Finally, it’s not about standing in rows, it’s about how if we can all come together to support something, we can make a difference. It’s about friendship and teamwork, hard work and dedication. Please consider me as a choice for one of the captains for the 2013-2014 cheerleading season on the Burrell High School Junior Varsity Squad. Thank you.

Writing A Paper Takes Patience and Time

A good piece of writing job is never easy to do. Writing is not as simple as it looks. There are too many things to think about even before a person would start writing. The first task of a writer is to think of a subject or topic that he or she is interested in writing about. He or she would then have to do researches to know if there will be sources to back up the paper. Next, the writer should make an outline to make his or her ideas organized, which would help the the whole paper to make sense. After making an outline, the writer can start with the writing process and make a first draft. Everyone should remember that they should never be satisfied with just a first draft because there are still many things to do after writing this draft. Usually, papers take too long to be written because writers tend to spend too much time thinking and deciding what topic to write about. However, once the writer knows what to write about, everything is expected to go smoothly. A lot of time and effort goes into researching about the chosen subject. At times, problems would be encountered when the writer finds out that there are only few sources that he or she can use. Researching requires a person to go to the library, conduct surveys, or search the Internet. All of these things take up time, which is why writers should allot enough time to write their papers. Or else, if unavoidable circumstances arise, it might be too late to do anything. Making an outline will make one's ideas flow continuously without awkward transitions from one topic to the next. A good writer also knows that to be able to produce a sensible paper, he or she has to follow a schedule because this would lessen the chances of cramming. A paper will always look as if it is rushed so having a schedule is better than to receive a failing mark. Before even beginning to write the first draft, writers should think of their audience. This is the people they intend to talk to through their work. Writers should know how knowledgeable their audience are about the topic being talked about so that no one will get confused and effort would not be wasted. Knowing who the audience will be also contributes to the ease of writing because the writer will know how extensive he or she needs to get on the paper to be able to communicate with the audience. Writers should readily accept that first drafts really do have mistakes. This is why they are called drafts. Not all writers can perfect a writing job the firs time around because it is hard to concentrate on thinking what to write and think about the grammatical structure of the whole paper at the same time. Drafts are meant to have mistakes and writers should always remember to make room for improvement. Writing takes time because writers should make sure that what they are writing about makes sense. They should be able to write sensibly and continuously without gearing off the topic or focusing on one aspect of the paper that other topics are being left out. After making a draft, writers should revise their papers and have them proofread by someone who has knowledge on the subject or someone who has the authority to do so. Revising will correct mistakes and make sure that the whole paper is complete in terms of ideas. Allowing somebody else to read the paper would help produce an unbiased opinion about the areas of the paper that need improvement. Revising would take time because checking for mistakes can take into two forms: one is for grammatical mistakes, and two is for the content errors. One cannot check for both at the same time. After having the first draft revised and proofread, the writer should follow the suggestions and comments by the other person and apply the corrected mistakes on the next paper. This process is repeated until the time comes when both the writer and the editor are satisfied with the work. Aside from these things, writing does take time because of the writers. It is known that writers cannot force themselves to write whenever they do not have the proper inspiration to do so. There are those who can write only at a certain time of the day. There are those who has to have a something before or during writing that without it, they will not be able to function. This is because writers need to be in the right state of mind and at the right moment to be able to come up with a good paper. This is opposed to other types of work where people can start and end their jobs at designated times. Writing does take a lot of patience and time but this is only because writers want to make sure that they bring out the best piece of writing to their audience. It does take a while and writers need to go through several processes but these efforts would pay off when they see the results of their work.

Official Function of Emperor Akihito of Japan

Official Function of Emperor Akihito of Japan From the time of the Meiji Restoration in 1868 until the Japanese surrender that ended World War II, the Emperor of Japan was an all-powerful god/king. The Imperial Japanese Armed Forces spent the first half of the twentieth century conquering vast swathes of Asia, fighting the Russians and the Americans, and menacing even Australia and New Zealand. With the countrys defeat in 1945, however, Emperor Hirohito was forced to renounce his divine status, as well as all direct political power. Nonetheless, the Chrysanthemum Throne endures. So, what does the current emperor of Japan actually do? Today, Hirohitos son, Emperor Akihito, sits on the Chrysanthemum Throne. According to the Constitution of Japan, Akihito is a symbol of the state and the unity of the people, deriving his position from the will of the people with whom resides sovereign power. The current emperor of Japan has official duties that include receiving foreign dignitaries, awarding decorations to Japanese citizens, convening the Diet, and officially appointing the Prime Minister as selected by the Diet. This narrow scope leaves Akihito with a lot of free time to pursue hobbies and other interests. The Emperors Schedule How does Emperor Akihito while away the hours? He gets up at 6:30 each morning, watches the news on television, and then goes for a walk with Empress Michiko around the Imperial Palace in downtown Tokyo. If the weather is inclement, Akihito drives in his 15-year-old Honda Integra. Reportedly, he obeys all traffic laws even though the roads in the Imperial Compound are closed to other vehicles, and the Emperor is exempt. The mid-day is filled with official business: greeting foreign ambassadors and royalty, handing out imperial awards, or performing his duties as a Shinto priest. If he has time, the Emperor works on his biological studies. He is a world-class expert on goby fish  and has published 38 peer-reviewed scientific papers on the topic. Most evenings include official receptions and banquets. When the Imperial Couple retires at night, they enjoy watching nature programs on TV and reading Japanese magazines. Like most royals, the Japanese Emperor and his family live an oddly isolated lifestyle. They have no need for cash, they never answer the telephone, and the Emperor and his wife eschew the internet. All of their houses, furnishings, etc. belong to the state, so the Imperial Couple does not have any personal belongings. Some Japanese citizens feel that the Imperial Family has outlived its usefulness. Most, however, are still devoted to this shadowy remnant of the former god/kings. The true role of the current emperor of Japan seems to be two-fold: to provide continuity and reassurance to the Japanese people, and to apologize to the citizens of neighboring countries for past Japanese atrocities. Emperor Akihitos mild manner, distinct lack of hauteur, and express contriteness for the past have gone some way toward repairing relations with such neighbors like China, South Korea, and the Philippines.

Chemical Piranha Solution

Chemical Piranha Solution Chemical piranha solution or piranha etch is a mixture of a strong acid or base with peroxide, mainly used to remove organic residue from glass and other surfaces. Its a useful solution, but hazardous to make, use, and dispose of, so if you need to prepare this chemical, read over the precautions and disposal advice before you get started. Heres what you need to know: How To Make Piranha Solution There are multiple recipes for piranha solution. The 3:1 and 5:1 ratios are probably the most common: 3:1 concentrated sulfuric acid (H2SO4) to 30% hydrogen peroxide (aqueous H2O2) solution4:1  concentrated sulfuric acid to 30% hydrogen peroxide solution5:1  concentrated sulfuric acid to 30% hydrogen peroxide solution 7:1 concentrated sulfuric acid to 30% hydrogen peroxide solution (less common) base piranha: 3:1 ammonium hydroxide (NH4OH) to hydrogen peroxide Prepare the solution in a fume hood and be certain you are wearing gloves, a lab coat, and safety goggles. Put the visor down on the hood to minimize the risk of damage or harm.Use a Pyrex or equivalent borosilicate glass container. Do not use a plastic container, as it will react with the solution and eventually fail. Label the container before preparing the solution.Make certain the container used for mixing is clean. If there is excessive organic matter, it may cause a vigorous reaction, possibly leading to a spill, breakage, or an explosion. Slowly add the peroxide to the acid. Do not add acid to peroxide! The reaction will be exothermic, may boil, and may splash out of the container. The risk of boiling or of sufficient flammable gas being released that could lead to an explosion increases as the amount of peroxide increases. Another method used to prepare piranha solution is to pour sulfuric acid over a surface, followed by peroxide solution. After time is allowed for the reaction, the solution is rinsed away with water. Safety Tips   Make piranha solution fresh before each use because the solution decomposes.Activity of the solution is increased by heating it, but dont apply heat until after the reaction to make the solution has completed. Its advisable to let the solution cool slightly after reaction before heating it.Do not leave hot piranha solution unattended on the lab bench.Do not store piranha solution in a sealed container. For that matter, do not store chemical piranha for later use, period.In case of skin or surface contact, rinse affected area immediately with large volumes of water. Continue rinsing at least 15 minutes. Seek appropriate emergency aid.In case of inhaling, remove affected person to fresh air and seek emergency medical aid. Be aware symptoms of exposure may be delayed.In case of suspected ingestion, seek immediate medical attention. How To Use Piranha Solution To Clean Sintered Glass - Piranha solution is used to clean sintered glass or fritted glass because it doesnt damage pores in the glass (which is why you dont use a strong base instead). Soak the glassware overnight in piranha solution before rinsing it with water.To Clean Glassware - Piranha solution can remove contamination on glassware that is untouched by other chemicals. Its important there is not excessive organic contamination. Soak the glassware overnight, then thoroughly rinse it.Apply as a surface treatment to glass to make it hydrophilic. Piranha solution increases the number of silanol groups on the glass surface by hydroxylating the silicon dioxide.Apply to remove residue from surfaces. Make sure you are removing residue and not a significant layer of material! Disposal of Piranha Solution To dispose of piranha solution, allow the solution to cool completely, to allow for it to release oxygen gas. Make sure the gas has dissipated before proceeding.Neutralize piranha solution by diluting it with large amounts of water. Do not neutralize it by adding a base, as the rapid decomposition releases heat and pure oxygen gas. The exception is when the volume of piranha solution is small (~ 100 ml). Then, dilute the piranha by adding it to water until it is less than 10% of the volume. Add sodium hydroxide or sodium carbonate solution until the pH is 4 or higher. Expect heat, bubbling, and possibly foaming when the base is added to the acid solution.Usually, its okay to wash diluted piranha solution down the drain. However, some places prefer it be treated as toxic waste. Disposal also depends on the purpose of the solution, since some reactions may leave toxic residue in the container. Do not dispose of piranha solution with organic solvents, as a violent reaction and explosion will occur.

Special Education Research Paper Example | Topics and Well Written Essays - 2250 words

Special Education - Research Paper Example Special education is a very important field of study as it seeks to integrate the special needs child into the mainstream society and empower them to grow into autonomous citizens, despite their personal exceptionalities (Farrell, 2010). Essentially, special education seeks to find avenues through which to shun the victimization and discrimination against exceptional individuals in the society. This can be achieved through the enhancement of active learning and recognition of chief learning experiences for learners with special needs. The historical development of special education Special education has a history filled with challenges, breakthroughs, and disputes. According to Rotatori, Obiakor, &Bakken (2011) the period before the 16th century was characterized by inhumane treatment of people with exceptionalities. The society viewed such individuals as cursed people who had to be isolated from the conventional society. In line with this mindset, individuals with special needs were treated inhumanely and sometimes even killed to rid the society of curses. In the 16th and 17th centuries, however, there were rising philosophical campaigns on human dignity and the right of every individual to be treated equally and fairly, in spite of their exceptionalities. This period also witnessed the premier educators of special education who came up with different philosophies of educating individuals with exceptionalities

Alcatraz Island Research Paper Example | Topics and Well Written Essays - 1000 words

Alcatraz Island - Research Paper Example It was designed to be impossible to escape from, and was usually the last stop along a prison line for inmates considered â€Å"incorrigible† (Stollznow). Over the years of operation, from 1934 to 1963, thirty-six men tried fourteen different times to escape its walls (Ocean View Publishing Group). One of those was Frank Lee Morris, inmate AZ#1441 (Ocean View Publishing Group). When it was finally carried out, the escape attempt made by Frank Lee Morris, which spanned months of planning and included three other inmates, was the best escape even in its attempt by an Alcatraz inmate overall, mainly due to the meticulous nature of the planning behind it, as well as the fact that his body and 99% of the items used in the escape, even to this day, have never been found. The Escape Together with three other inmates, Morris finally succeeded in putting together a method that would enable him and the others to escape Alcatraz. One night, while trimming his nails, he noticed that the c lippers had a little â€Å"arm† with a pointed edge, and by digging it into the concrete of his cell wall, he discovered that he could gouge holes in it (Katz 210). The back of his cell had a vent that was six inches by ten inches, and Morris felt that if he could somehow enlarge this, he could slide through it into the unused utility corridor behind his cell (Katz 210). From that day on, digging commenced. Morris, brothers John and Clarence Anglin, and inmate Allen West would take turns digging around the vents in their cells (Ocean View Publishing Group). Morris and West were in adjoining cells, with the Anglin brothers in the next two adjoining cells (Ocean View Publishing Group). They worked in pairs, with one man chiseling and another keeping lookout (Ocean View Publishing Group). Morris fashioned crude tools from saw blades, as well as attempting to use a homemade drill (Ocean View Publishing Group). He also stole spoons from the cafeteria, leading them to be called the â€Å"Tablespoon Trio† together with the Anglin brothers after the escape (â€Å"The Tablespoon Trio† 25). They were able to dig without any guards noticing. In addition to the digging, Morris thought through every detail. He spent months building a raft out of raincoats that were issued to the inmates (Evans). In addition, he also fashioned a life preserver for each man (Evans). Perhaps, though, the most ingenious part of the plan was the â€Å"dummy heads†. Using concrete powder, mixed with soap and papier-mache, each inmate including Morris fashioned and painted a dummy head that looked remarkably lifelike (Albright 174). They were also topped off by real hair stolen from the barbershop (Albright 174). These heads fooled the guards for months while Morris was elsewhere during the night. The night of June 11, 1962, would be the last for Morris in Alcatraz. He slipped out of his cell and climbed one last time to the cell house roof (Evans). He then, after gath ering the supplies along with the Anglin brothers, made his way down 45 feet of pipe to the ground (Katz 212). The final escapee, Allen West, had made the error of cementing his false grate to the wall in places to avoid detection, and could not get it unstuck in time to join them; consequently, he was left behind (Evans). Morris inflated the raft with a â€Å"concertina† (accordion), and launched from the Northeast end of the island