Sunday, March 15, 2020
Thorpe Park Essays
Thorpe Park Essays Thorpe Park Essay Thorpe Park Essay My aim is to investigate the different ways in which physics are involved to create thrilling yet safe rides. Some examples of the physics used in a theme park, which I intend to explore in this piece of coursework, are the following:* The sensation of weightlessness* Large accelerations of the body* Large decelerations of the body* Changes in kinetic and potential energy* Newtons laws of motion* Power and work done* Lifting forces and stopping forcesI have chosen the ride called detonator. I must find out two pieces of information needed before I carry out my investigation and carry out my calculations. I will firstly need to estimate the mass of the carriage and the height (displacement) of the tower.Estimating the massThere are twelve seats, each holding a person who on average has a mass of 90kg. There is a large carriage with a mass of 1500kg although this is an estimate. The total mass equals 2580kg, this is an estimate this is not very accurate as not every rider is identical and has a mass of 90kg some may have a higher or less weight. This will affect my results slightly.Estimating the heightTo estimate the height of the detonator I will use similar triangles to accomplish this.Two triangles are similar if they have the same shape. They dont have to be the same size. For the smaller triangle, I will evaluate the ratio of the side with length h to the side with length l. This is the same as, with respect to the larger triangle, the ratio of the side with length H to the side with length L. That is h/l = H/LI used two rulers to record the measurements of l and h, the two rulers being 90 degrees parallel to one another. The value of L, length, was recorded by the distance from where I was to the point at where the ride is situated. I recorded the values for:* h = 29.1cm = 0.29meters,* l = 37.1cm = 0.37meters,* L = (97 paces at 0.39) + 6m = 43.83meters.I am now able to calculate the height of the detonator (H):h/l = H/L h/41.8 = 0.29/0.37 h= (43.83x 0.29) /0.37Height = 34.35 meters.When I calculated the height of the ride I did not consider where the carriage started, therefore the displacement is not from the top of the tower. My calculation is not very accurate. I will now subtract 3.27 meters for the length of the carriage. So my new height is 31.08 meters.Average VelocitiesOnce I have estimated the height of the tower I am now able to calculate the average velocities of various stages in the ride. Velocity is the speed at which the carriage changes position. A higher velocity means an object is travelling faster between two given positions. I will include the average velocity of the carriage on its journey up to the top of the ride, the average velocity of the carriage on its journey down the ride, the average velocity of the whole ride, the average velocity of the free fall distance part of the ride. I will also estimate the average velocity of the braking distance. I used a stopwatch and was able to time how long the carriage t ook to complete all five stages of the ride. With this value I was able to calculate the velocity with the simple formula s=d/t. My average velocities are unfair, as I have not taken into consideration air resistance or friction, which would slow the carriage down slightly. Although in most cases this is small enough to be neglected.I got the free fall distance by estimating the displacement of the ride from where the carriage started at the top of the tower until the while plates located on the side of the tower, which are used to slow the carriage down. This is the displacement that the carriage is travelling whilst in free fall. I think this is an inaccurate measurement as I used my observation. I latter went onto the Thorpe park website and found that the free fall distance is actually 29.5meters. I estimated 27 meters and was only 2.5 meters too short, I think that is only a small inaccuracy.I went on to the Internet and found the actual average free fall velocity of the ride t o be 15ms-1, with my value at 11.64ms-1. This is only a slight inaccuracy and is a fairly reasonable result. The inaccuracy may have been caused by the many possible human errors or slight inaccurate results collected by using the stopwatch. An example would be the delay or quickness of my reactions to stop the watch when the required destination is met.TimeI recorded the times with a standard digital stopwatch. I recorded three sets of results for the five times and worked out an average for a more accurate set of results. This was a reliable but inaccurate method as many human or technical errors where possible, causing an unfair set of results.Free fallGalileo first introduced the concept known as free fall. According to legend, Galileo dropped balls of different mass from the Leaning Tower of Pisa to help support his ideas. These classic experiments led to the finding that all objects free fall at the same rate, regardless of their mass.An object in the state of free fall is onl y influenced by the force of gravity. The object has a downward acceleration toward the centre of the earth (9.81ms-2), the source of gravity.I will use a constant acceleration formula to investigate whether the detonator has an acceleration of -9.81ms-2, as Galileo predicted. The displacement of the free fall ride is 27meters as I previously estimated (see page 1). The time of the free fall part of the ride is 2.32 seconds as I also previously recorded.A=?S=27metersT= 2.32 secondsU= 0ms-1V=S= ut + 1/2at2S = 1/2 at2a= 2s/t2a = 2x 272.322a= 10.03 ms-2This is near the value of acceleration due to gravity. I think this is a reasonable result due to the limitations. Firstly the displacement was just an estimate and may not be the exact value, this would affect the result, as it may be a greater or less value. The time is not the exact value of the free fall ride as I used my observation to stop the watch when I thought the carriage reached the white plates, when it started to decelerate , this may not be an accurate value. With such a small inaccuracy I think that I can safely draw the conclusion that the carriage free falls at the same acceleration as that of the gravitational pull of the earth, as predicted above. I have taken into consideration inaccuracies. Another ride that relies on free fall is called tidal wave. This is a roller coaster, which descends down a slope with a component of the gravitational pull of the earth. As further work I could work out the acceleration of this ride to investigate the component of gravity.Newton later took Galileos discoveries concerning mechanics and incorporated these principles into his laws of motion. Newtons first law applied very much to the ride which states; every body remains at rest or in uniform motion in a straight lie unless acted upon by a force. It is this first law of motion, which applies to the ride, firstly when the ride is at the top and is stationary. Whilst at the top there are two forces acting upon t he seat of the carriage. The forces act in such a way that they counteract to each other. As the rider sits in their seat at this moment, the seat pushes upward with a force equal in strength and opposite in direction to the force of gravity, which is causing the passengers weight. These two forces are said to balance each other, causing the rider to remain at rest. If the seat is suddenly pulled out from under the rider, then he experiences an unbalanced force. There is no longer an upward seat force to balance the downward pull of gravity, so he accelerates uniformly to the ground, until the carriage decelerates. It is at this point where a force is applied to slow the carriage down bringing it to a controlled stop.The detonator can give its passengers the sensation of free-fall. It consists of three distinct parts: ascending to the top, momentary suspension, and then the quick downward plunge.Ascending to the topIn the first part of the ride, force applied to the car lifts it to the top of the tower. The amount of force depends on the mass of the car and the passengers within the car. Motors create this upward force. There are built-in safety allowances for variables concerning the mass of the riders. F=ma, F=2580x-9.81, F= 25309.8N. This may not be a very accurate result as the mass of the carriage is just an estimate and not a true value. Whilst the carriage is gaining height it is also gaining gravitational energy. The carriage also contains little kinetic energy on its journey.Momentary suspensionWhilst the car is stationary at the top of the tower the gravitational potential energy is at its greatest. Gravitational potential energy is the energy possessed by the carriage because of its height above the ground. The amount of GPE depends upon its mass and its height. I have worked the GPE with the following formulae:Gain in gravitational potential energy = mass x gravity x height.2580(kg) x 9.81(ms-1) x 31.08(m)= 786628NThe value for the GPE may be inacc urate as I estimated the height and this might not be the exact value. Also the mass of the carriage it an estimate and is not identical for every ride, so it varies for every ride.With the GPE I am now able to calculate the minimum power used by the motor to lift the carriage. I will use the formula: power=Energy Transferred/Time.P=786628(N)/17.82(s)P = 44143 wattsThis value may be inaccurate as the GPE I calculated is not an accurate value, also the time may be inaccurate as I used a stopwatch and inaccuracy could have occurred. This is the minimum power used, as the motor is not 100% efficient due to friction, increase/decrease in mass due to passenger mass, air resistance, also loss of power due to heat e.t.c.Newtons third law of motion states that; To every action there is an equal and opposite reaction. A 6okg man would experience a 0N resultant force acting on his seat whilst at rest, and a 589N reaction force acting on his seat. F=ma, F=609.81=589N.Quick downward plungeFrom the top of the tower the car is swiftly accelerated towards the ground under the influence of the earths gravitational field only, as I previously calculated. It is at this point, which the car gains kinetic energy and looses potential energy. A unique magnetic braking system helps bring the ride to a controlled stop. The faster the carriage moves, the larger resistive forces become.F=maF=25809.81=25309.8NWe measure the energy an object has by the work it can do. The work is done when the carriage is moved by the force of gravity. I will now calculate the work done:work done = force x displacement in direction of forcewd=25310x27wd= 683370j this is not very accurate as I did not consider air resistance or friction. Also the force involves an estimate of the mass of the carriage, which is not identical in all the rides.Kinetic energyThe kinetic energy of the carriage is the energy possessed because of its motion. The kinetic energy is greatest when it is at a minimum height. I have w orked out the kinetic energy possessed by the carriage whilst in free-fall.Loss of Gravitational Potential Energy = Gain in kinetic EnergyMgh = 1/2mv2gh = 1/2 v29.81 x 31.08 = 1/2 v2304.8 = 1/2 v2609 = vv = 25ms-1The main limitation in this calculation is the fact that the height of the ride is an estimate, which may be inaccurate. Also I did not consider the air resistance or friction of the carriage and tower, which would slow the carriage down. In most cases this is small enough to be neglected.I will now use the constant acceleration formulas to calculate the final velocity just after the free-fall part of the ride, just before the deceleration.A= -9.8ms-2S= 27metersT= 2.32sU= 0ms-1V= ?I will now calculate the rate of deceleration as the carriage comes to a stop. I will use the constant acceleration formulas. Displacement is 4.08 meters as I estimated (page 1), the time for the carriage to stop during deceleration is 2.32 seconds as I also recorded; the initial velocity is 23.3m s-1 as I calculated above.A=?S= 4.08mT= 1.7sU= 23.3ms-1V= 0V2 = u2 + 2asv2_u 2 = a2sa = 02 23.3224.08a=66.5ms-2=6.8gsI looked up onto the Internet and found out that the carriage is changing its speed at a rate of 5gs. My calculation was 6.8gs, (6.8 5 =) I was just 1.8gs out. There are many factors, which could have caused this inaccuracy. Firstly the displacement of the deceleration is an estimate, I measured the distance that the carriage travels whilst decelerating the same way I measured the height, by using similar triangles (see page 1). This was an inaccurate measurement as I latter found out on the Internet the displacement to be 5.0 meters, I was 0.92 meters out. This affected my calculation significantly. Secondly the time was such a small measurement that it was really hard for me to get the exact time whilst the carriage is decelerating as I used a manually operated digital stop watch and my reactions were not fast enough. Also I did not take into account air resistanc e or friction of the carriage, which would slow the carriage down. This is usually a small amount as the mass of the carriage is high but would affect my result slightly.WeightlessnessThe detonator produces a sensation of weightlessness. These sensations result when riders no longer feel an external force acting upon their bodies. At the top of the tower of a free-fall ride, a 60kg rider would feel 589N of force from the seat pushing as an external force upon their body. The rider feels their normal weight. Yet as, she falls from the tower, the seat has fallen from under her. She no longer feels the external force of the seat and subsequently has a brief sensation of weightlessness, in this ride 2.32 seconds of weightlessness. The rider has not lost any weight, but she feels as though she has because of the absence of the seat force.Discussion of future developmentsIt is hard to find any future developments, which would improve the ride in any way because top physics have been used to design this ride. Maybe you could increase the duration of the free fall part of the ride, making a longer sensation of weightlessness. Also increasing the height of the ride would increase the gravitational potential energy and as the carriage descends it will loose more kinetic energy therefore going faster. This too would increase the sensation if weightlessness.ImprovementsI think that this investigation was overall very successful. I estimated the height of the detonator to be 31.08meters high. I later researched on the Internet and found the actual height to be 30.48. My estimate was only 0.6 meters out and was a very pleasing result. To improve this investigation I would spend a bit more time in the theme park to gather and check through the calculations and to make sure they are accurate.
Friday, February 28, 2020
CJ 450 Counterterrorism Essay Example | Topics and Well Written Essays - 1500 words
CJ 450 Counterterrorism - Essay Example Arguably there are various reasons for terrorism attacks and hence each motive requires different approach to tackling terrorism. Some of the reasons include political conflict, religious clashes, gaining publicity and in some cases divine instruction to conduct terrorist attacks. (Victoroff, 2006). The terrorist believe that such motives justify their actions although many will agree that there is no justification to terrorism whichever way we look at it. For example the September 11 attack was fuelled by religious motives and political motives. When governments or those in authority understand the motives behind terrorist attacks then they can forge on in their efforts to reduce these tensions and dissatisfactions in an intelligent way hence counter terrorism. It seems that counter terrorism is a tactic of warfare. These efforts are usually retaliation with equal or greater force as applied y terrorist in order to disempower them. Often than not counterterrorism efforts will include the military and the police force that wage war against these organizations. Although the idea is to fight crime, innocent civilians may suffer in the process. The role of due process in counter terrorism is that both parties feel that they are entitled to use force in fighting for their ideologies (political or otherwise). The victims feel a need to avenge wrongs and in effect the problem doubles in the long run. In fact one of the implications of characterizing terrorists as the enemy rather than mere criminals is that it breeds ground for wa r. Question 2 Due to the sophistication of technology surveillance has changed from the traditional way to a new surveillance. The new system of surveillance includes monitoring inside activities of terrorist groups through satellites monitoring, or spying. Additionally, eavesdropping communication, tapping wire money transfers to trace terrorist funding etc. (Clarke & Newman, 2006). The ideal surveillance technique would be one where the counter terrorism units would gain clandestine sources within the terrorist groups or cells but this situation is almost impossible since these groups tend to be so close knit and bond by strong allegiances. (Clarke & Newman, 2006). It seems that the shift from traditional surveillance methods to the new type has had problematic effect in the civil liberties of the people of United States in that their communication is often been intercepted as the authorities try to trace terrorist linkages. In this light privacy has been infringed on. Additionally, surveillance has had negative connotation to discrimination especially for communities that are associated with terrorist groups. For instance in some place Muslims and Arabs are frown upon and are seen as potential threats due to association with al-Qaeda and Taliban groups. More to that the frequent travel advisories and terrorist alerts instill fear in the lives of people hence multiplying the power that terrorist groups have over the people in US. This denies such communities freedom of movements and enjoyment of life. The quality of life has been reduced to that of slavery like nature. It therefore seems that the counter terrorism efforts have to strike a balance between protecting the liberties of the people and preventing further terrorist attacks. (Meggle, 2005). Notably in order to achieve this all stakeholders have to echo what is important to them. Freedom or security. Nonetheless, even
Tuesday, February 11, 2020
Canadas Economy Essay Example | Topics and Well Written Essays - 2000 words
Canadas Economy - Essay Example In specific, Canada has also been one of the sufferers of economic recession and experts have specified that although there have been adverse effects of economic recession, however, Canadian authorities were very effective in overcoming issues and challenges, and thus, were and still are successful in running the Canadian economy in an efficient manner, especially since the past 2-3 years. While the Canadian government received applause from the economic analysts, they had to confront criticism from some experts as well, as they criticized that while running the economic matters of the country, authorities and especially the Bank of Canada have shown ineffectiveness and uselessness. While comparing performance of the Canadian government with G7 states, its graph is going down, and it is imperative that the government with collaboration of the Bank of Canada should take crucial steps to avoid the downfall that will result in adverse impact on different sectors of the country. For this purpose, the paper will try to identify and evaluate the role of the Bank of Canada and the government of Canada in running the economy. In addition, the paper will strive to converse about different economic changes brought in by these two contributors and runners of the Canadian economy. More specifically, economic policies and strategies of the Canadian government for the last two year s will be in scrutiny. Due to the wave of globalization, and most importantly, economic recession, economists are suggesting governments and banking sector to introduce policies that may complement global scenario of economic development rather than limiting to only regional economic development of the country. Studies related to the role of Canadian government have indicated that since the past 2-3 years, the government along with collaboration of the Bank of Canada has created their macro-economic policies on the same track, and the Canadian government is still
Friday, January 31, 2020
The US intervention in Korean War Essay Example for Free
The US intervention in Korean War Essay The US intervention in the Korean war was caused entirely by the aggressive behaviour of N. Korea. How far do you agree with this judgement? The true reason as to why the US intervened in the Korean war has created a lot of conflicting answers from many historians. The aggression behaviour of North Korea inherently contributed into US intervention. Historians believed that this was another event in a civil war that had been raging since Korea had been divided. Kim Il Sung was seen by Stalin as someone who is capable to destroy left wing factions in the north and his ability to unite the people under a communist leadership. On 25th of June 1950 North Korean invaded the south in a clear act of invasion which quickly brought the attention to the US. It is arguable that the Americans, keen on human rights and democracy, provided military assistance to Syngman Rhee in the south in order to stop further expansion of communism. One of the reasons why the Americans urged to stop the spread of communism is due to the pressures from home. The red-scare started by McCarthy threatened Trumans popularity as the peoples president. He was accused of supporting communism and employing closet communists under his administration. The fact that North Korea invaded the south provided the perfect opportunity for Truman to take action and convince the public that he was no more communist than they were. He assisted South Korea in a war against the ideology of communism. Whether or not Truman fought the war out of priniciple is arguable, however it is more likely that he used democracy and the human rights as a way to protect his presidency by gaining faith from the public again. The fight against communism had domino effect to the other SEA countries as well. If the whole of Korea were under the rule of communism, consequently other SEA nations would fall in Soviet sphere of influence. The security of Japan was particularly important to the US because she wanted a strong area of influence in the Pacific. IT was essential for Japan to maintain as a regional democratic power in South East Asia so that it would provide a bulwark to the spread of communism in SEA and inform the USA on checks on Soviet influence. Korea is only 160 km from Japan, if the whole of Korea fell into the hands of communism, Japan would be the first country affected which would create a domino effect towards the other SEA countries. If all the region of Asia is under the influence of Soviet, America would lose her superpower stature and diminished all ties and faith from other nations such as Western Europe.
Thursday, January 23, 2020
The Sun Rises :: essays research papers
The Sun Rises à à à à à Mankind, through its hardships and struggles, has created many outlets to tell of its trials and tribulations. People have a need to relate their stories to other people. Music, art, prose, cinema, and poetry are among some of the most common types of storytelling. Poetry is one of the oldest and strongest forms of telling a story. It has often been used to chronicle the hardships of a group of people who were held back from many personal freedoms our society takes for granted. Gwendolyn Brooks' people have had one of the hardest struggles placed upon any of the races that make up America. Brooks touches upon the hardships of her people and their ancestors in many of her poems. In 'To the Diaspora,'; Brooks uses the metaphors of the continent of Afrika, a road (or a journey), the sun, and a few others to tell of the struggle of African-Americans in the United States. à à à à à The first metaphor the narrator speaks of is of the continent of Afrika. The word Afrika is used to mean a group of people and not the literal meaning of a continent of land. More specifically, these people are African-Americans. The 'Black continent'; she speaks of is a unification of her people (5). The narrator is telling her ancestors that they need to unite to make any progress. In the passage: 'You did not know the Black continent to be reached was you,'; she is telling her people, past and present, that the way to achieve their goals is within them (5-7). The narrator uses the word Afrika instead of Matt Parsons 2/14/00 Page 2 Africa to distinguish between the continent and the meaning she has placed upon the word. Through this metaphor the word Afrika comes to mean a continent of people, and their goals to achieve equality, instead of a continent of land. The next metaphor the narrator speaks of is one of a journey or way over a road. Gwendolyn speaks about her people setting out for Afrika. In the beginning of the poem we know that the people are beginning a journey but they do not know their destination. This gives us a glimpse into how hard the struggle of African-Americans must have been in the beginning of slavery. As the poem progresses into the second stanza, a road emerges and this lets us know that the narrator's people are getting some ideas about where they should be going.
Wednesday, January 15, 2020
The Curse of the Sacred Fruit
In the beginning of time a serpent slithered through a garden as he notices a soft nude woman walking alone. The serpent comes up behind her and tells the beautiful woman of the apple from a sacred tree that will make her as all knowing and powerful as god. Although god had told this woman to never eat from this sacred tree, she was convinced by the evil snake. After convincing her male companion they both eat the sacred apple and immediately are awaken as their eyes open wide. That very instant they, for the first time in human history, become aware of their physical self; the birth of self hatred of the human form had emerged. Soon after God exiled Adam and Eve from the Garden of Eden and dammed their ancestors. Today a young girl stands in front of a mirror disgusted by what is been reflected upon her. This girls struggle against the disease her primordial ancestor had given her is depicted in Eavan Bolandââ¬â¢s poem ââ¬Å"Anorexia. â⬠As Boland begins her own demise she is envisioned with the beginning of time where man had not yet fallen and self awareness had not been created; a vision that will consume her to do whatever it takes to go back to Eden. As the speaker stares at the mirror she is consumed with negative thoughts in her mind. She begins to believe her ââ¬Å"flesh is hereticâ⬠(line 1) as her body is rejecting her ideal thought of what she wants it to be. Her flesh begins to play tricks on her as it ââ¬Å"Meshed [her] head / in the half-truthsâ⬠(7-8). Her flesh becomes ââ¬Å"a witchâ⬠(2) using tricks to control the girl from not eating. To cure this manipulative disease she is to destroy her exterior. In the following lines the speaker becomes much more explicit in how she is to cure herself: I am burning it Yes I am torching Her curves and peps and wiles They scratch in my self denial Here it shows how she is starving herself by burning away whatever fat remains from her fragile bones that are protruding from her skin as she now becomes ââ¬Å"starved and curvelessâ⬠(16). Boland begins a slow and painful suicide to bring an end to her disease. Boland falls sleep and enters a vivid dark dream which reveals to her the beginning of her disease. In this vibrant dream she in trapped inside a place she describes as ââ¬Å"a claustrophobiaâ⬠(22). In this ââ¬Å"sensuous enclosureâ⬠(23) she hears the ââ¬Å"warm drumâ⬠(25) beat of a manââ¬â¢s heart and the ââ¬Å"song of his breathâ⬠(26). ââ¬Å"Sleeping in his sideâ⬠(27) she is ââ¬Å"a ribâ⬠(19). Boland has regressed back to the beginning of time before the sins of Eve when she was only one rib of Adam. In this dream she discovers what she needs to do to get ride of her disease. She wants to return back inside the womb of Adam. To return to Eden were life was blessed with no self-awareness, and no anorexia. She hopes to erase Eveââ¬â¢s mistake of the past and not eat the scared fruit. She will finally be able to live a life without self awareness and end the struggle that has consumed herself against her own flesh. Boland will finally ââ¬Å"grow / angular and holyâ⬠(35-36) again. After she is awakened she is obsessed with returning back to Adam and the Garden of Eden to finally be filled with bliss. Returning to Eden ââ¬Å"will make me forgetâ⬠(40), forget ââ¬Å"the fallâ⬠(42) she proclaimed. She will forget the fall of mankind and the creation of the disease that has destroyed her from within. She wants to also forget the hell of what is anorexia as she goes ââ¬Å"into forked dark / into [the] python needsâ⬠(43-44). Sadly the only way she can possibly reach the gates of Eden would be through suicide which she has already begun. ââ¬Å"Only a little moreâ⬠(28) she says, ââ¬Å"only a few more daysâ⬠(29) until she is dead and can be ââ¬Å"back into him againâ⬠(32). It is unknown what happens to the girl next, all we are certain off is that the disease of anorexia had beaten her to nearing or even committing suicide. The ââ¬Å"witchâ⬠was able to trick her to figuratively burn herself alive in agony and pain. In the mist of all this, her lack of nutrition caused her to hallucinate of the beginning of time when Humanity was only one being, a time when there was no self awareness and no anorexia, a time when man had not yet fallen. This vision that continues to consume her was merely an illusion from the witch and the serpent. All it was was a mere trick to convince her to committee suicide and break godââ¬â¢s major law. Killing herself to return back to Eden will come to no prevail as suicide will only lead her to an eternity in the depths of hell with the serpent, an eternity of living with anorexia.
Tuesday, January 7, 2020
ADHD and CBT - Free Essay Example
Sample details Pages: 3 Words: 846 Downloads: 8 Date added: 2019/07/31 Category Medicine Essay Level High school Tags: ADHD essay Did you like this example? ADHD is the most common neurodevelopmental disorder in children. Unfortunately, if an individual is diagnosed with ADHD as a child there is a good chance it will become chronic and persist into adulthood (Robinson, Rogers, 2018). The condition is a neural development disorder that affects an individuals attention span, organization skills, impulsive behavior, and hyperactivity. ADHD comes with negative problems that can impact an individuals well-being. Problems such as academic performance, social life, interpersonal relationships, and lower self-esteem (Ramos-Galarza, C., Fiallo-Karolys, X., Ramos, V., Jad?- n-Guerrero, J., Paredes-N?z, L. 2018). Not only do these impairments affect the individual with ADHD it also affects the family associated with the individual (Hodgkins, Shaw, McCarthy, Sallee, 2012). Donââ¬â¢t waste time! Our writers will create an original "ADHD and CBT" essay for you Create order Literature Review Prevalence/Diagnosis/Symptoms Research shows that over the past couple of decades the number of Americans diagnosed with ADHD have steadily increased (Robinson, Rogers, 2018). From 1997 to 2006 research recorded a three percent increase rate of diagnosing those with ADHD (Robinson, Rogers, 2018). The prevalence rate of the American population is five percent; the majority of individuals diagnosed are male, and in children 90% diagnosed are boys (Schlachter, S. 2008). Increasing evidence suggests that there is a 60% chance children with ADHD will have clinically ADHD symptoms as adults (Saleh, A., Fuchs, C., Taylor, W. D., Niarhos, F, 2018). However, most boys are diagnosed between the ages of 7 and 12 (Schlachter, S. 2008). The diagnosing process for children is usually done by a variety of medical professionals such as pediatricians, general practitioners, or mental health specialist. In most cases teachers, parents, coaches, and other caregivers notice ADHD symptoms and thus play a role in diagnosing a child (Schlachter, S. 2008). Compared to children, diagnosing adults is much more complicated and requires more work. The process for adults to be diagnosed includes experimental tasks, application of scales, test, and a deep clinical analysis (Ramos-Galarza, C., Fiallo-Karolys, X., Ramos, V., Jad n-Guerrero, J., Paredes-Nz, L. 2018). Comorbidity If a family member is diagnosed with ADHD it can cause the family to experience hardships financially and emotionally and ultimately can result in a family breakdown. ADHD individuals often causes problems for spouses, family member, and friends who complain about them not listening, being forgetful, and overreacting. Family members are also exhausted from the mental and physical labor involved with caring for an ADHD child (T. Hirvikoski E. Waaler,T. Lindstrem, S. Belte, J. Jokinen). It is considered a public health concern because ADHD is associated with substance disorder and crime, thus there is a need for effective treatment. Studies have shown that ADHD also associates with severe traffic accidents, relationship issues, and problems at the workplace. More importantly studies have been done to test the impact ADHD has on an individuals health related quality of life (HRQL). The studies have showed negative association of adults and children between ADHD and HRQL. However, studies shows that when effective treatment is in place for ADHD individuals the HRQL increases (Hodgkins, P., Shaw, M., McCarthy, S., Sallee, 2012). Studies suggest that 65% children with have ADHD also are diagnosed with a psychiatric or behavioral issue (Schlachter, S. 2008). The National Comorbidity Survey Replication shows that adults who have ADHD can be comorbid with mood disorder, anxiety disorders, impulse control, and substance use disorder. Results indicate a comorbidity between ADHD and mood disorder is 38%, 47% in anxiety disorder, 20% for impulse control, and 15% for substance use disorder Saleh, A., Fuchs, C., Taylor, W. D., Niarhos, F. (2018). Adolescent/Parents ADHD is often detected early on in childhood, between 5-10% of children is estimated to have ADHD. Originally, to be diagnosed symptoms had to be present before the age of 7. Further studies were done and indicated that 7 was too strict to identify an onset of symptoms. Thus leading to the DSM-5 to require an onset of symptoms prior to the age of 12 instead of 7 (Taylor, M. J., Larsson, H., Gillberg, C., Lichtenstein, P., Lundstrem, S. 2018). For a child to be diagnosed with ADHD there must be evidence of symptoms affecting their function in multiple settings. For example, a child is observed at home by the parents of the child and at school by their teacher. Health care professionals evaluate a childs behavior and interpret their observations to test for ADHD. However, there remains a debate because no objective test is given, it is up to clinical judgement on whether or not an individual has ADHD (Holland, J., Sayal, K. (2018). Adult The college population is also heavily affected by ADHD, many studies associate untreated ADHD with lower academic success. The studies also suggests higher psychiatric problems in those with ADHD compared to the whole student population (Saleh, A., Fuchs, C., Taylor, W. D., Niarhos, F, 2018) ADHD in adults often affects individuals in the workplace. In the U.S labor force ADHD accounts for 120 million days of annual lost work, which results in 19.5 billion lost human (Saleh, A., Fuchs, C., Taylor, W. D., Niarhos, F, 2018). Treatment Since ADHD is one of the most common psychiatric disorders it is important that there are treatment options for those individuals. The condition is associated with numerous of impairments that affects ones life (Hodgkins, P., Shaw, M., McCarthy, S., Sallee, F. R. 2012).
Subscribe to:
Posts (Atom)