Monday, December 30, 2019
Analysis Of Arthur Miller s The Crucible - 2138 Words
Crucible Character Essay - John Proctor #6 In Arthur Millerââ¬â¢s ââ¬Å"The Crucibleâ⬠the protagonist is a man by the name of John Proctor. Proctor is a very complex character because he doesn t have the cleanest history. He is a man in about his forties who had committed the sin of cheating on his wife with a young girl. This act of his gives a bad first impression to the reader. Proctor however does try to become a better man and do the right thing to save his wife s life, which changes feelings about him as he is then seen as almost a savior. This controversial character faces many obstacles that go against him in trying to save his wife. Early on in the story Proctor is challenged with letting a young naive girl, by the name ofâ⬠¦show more contentâ⬠¦Proctor feels that the only way to prove his wife innocent is to reveal his personal relationship with Abigail, so he can reason that Abigail only accused his wife because she wants to be with him and have her out of the picture. This sets up the main feud with Procter being the protagonist and Abigail being his antagonist. John shows his attempt to make things right in his decisions. Instead of being seduced by Abigail again he has self control and tells her that it is over. This choice Proctor makes early on in the story demonstrates his desire to correct his mistakes. It is never more evident that Proctor is trying do good than when he confesses to lechery to save his wife. He tells the judge that he slept with underage Abigail and that is why she accused his wife, so she can get rid of her. Proctorââ¬â¢s decision to not say anything when asked to confess to witchcraft reveals how much he cares about his reputation. He would rather be hung than be known to everyone as a man who performed whichcraft. Proctor is pretty successful in changing his image. He positively changes himself. He goes from being a man who committed lechery, which is sleeping with someone underaged, to a heroic man who dies with honor because he didn t lie and confess to witchcraft to save himself from being hung. He is the most changed character in the story and is controversial because it is debatable whether he is truly a hero
Sunday, December 22, 2019
Heavy Metals - 916 Words
Heavy metals such as arsenic (metalloid), mercury, lead, and cadmium have a rich history throughout the world. From Ancient Rome to the Vietnamese War, heavy metals have been used in many different ways, sometimes leading people to death or illness. This research essay will go through the history of the above-mentioned metals, how they were used, and how they can affect people. Arsenic Among the first uses of arsenic in in 19th century was in taxidermy and painting (Cooksey 2012). Soon after, it was determined that arsenic was poisonous leading to the passing of the Arsenic Act in 1854 which required a signature for buying arsenic (Cooksey 2012). Despite this people continued to use arsenic for dyes and taxidermy. Many people grewâ⬠¦show more contentâ⬠¦The mercury that was ingested in Japan came in the form of methyl mercury. Methyl mercury can cross the blood-brain barrier and cause ataxia, sensory disturbances, and changes in mental state (Cooksey 2012). Lead In the past, lead was used in smelting, and it was known that the vapors can be deadly (Cooksey 2012). In ancient Rome, lead containers were used to hold food and drink and was a constant source of chronic toxicity for many years (Cooksey 2012). Although people were recognizing the effects of lead, it wasnââ¬â¢t until after 1950 that legislation banned lead in food and drink cans (Cooksey 2012). Today, lead poisoning is a huge concern in China as the country becomes more industrialized and the production and use of lead increases (Hou et al. 2013). According to Hou et. al, lead can affect many organs and destroy functions of the nervous system (2013). A person can accumulate lead in their body from the environment, and it tends to stay there. This means that younger children are more vulnerable the longer they are exposed to lead. Childrenââ¬â¢s blood brain barriers are also not fully developed yet, making them more susceptible to lead poisoning (Hou et al. 2013). I t has been observed that lead can impair growth, memory, intelligence, and behavior in these children (Hou et al. 2013). Hou et al, conducted a study to observe the trend between blood lead levels and cognitive development of children (2013). They found that ââ¬Å"blood lead levels had an obviousShow MoreRelatedA Report On Heavy Metal Distribution1173 Words à |à 5 PagesHeavy metal distribution in sediments around Kallur Mandli and Sagar road Industial estate Shimoga, Karnataka, India. Jayaram G. N.1, Chandrashekarappa K. N.2 and Anantha Murthy K S2 1 Dept. Of Civil Engineering, Shree Devi Institute of Technology, Kenjar, Mangalore ââ¬â 574142 Email: jayaramhonnavar@gmail.com 2 Dept. of Applied geology, Kuvempu University, Shimoga, Karnataka - 577451 Abstract The present study was taken up to identify trace metals as well as to assess the extent of anthropogenicRead MoreChemical Properties Of Heavy Metals1680 Words à |à 7 PagesIntroduction: Heavy metals, as its name suggests, are metals that have relatively high densities. However, based upon different standards, such as the density of the elemental form of the metal, atomic number, and chemical properties, the definition is not constantly defined and has been modified by various authors. But, generally, a density of more than 5 g/cm3 is a criterion often used to define heavy metals. For humans, some of heavy metals are required by human bodies to realize specific biologicalRead MoreEnvironmental Pollution By Heavy Metals1199 Words à |à 5 PagesIntroduction Environmental pollution by heavy metals has become a serious problem in the world. The mobilization of heavy metals through extraction from ores and subsequent processing for different applications has led to the release of these elements into the environment. The problem of heavy metalsââ¬â¢ pollution is becoming more and more serious with increasing industrialization and disturbance of natural biogeochemical cycles. Unlike organic substances, heavy metals are essentially non-biodegradable andRead MoreEssay Heavy Metal in the 1980s1235 Words à |à 5 Pages Heavy metal in the 1980ââ¬â¢s is hard to describe. Its static style did not change much from the 1970ââ¬â¢s, but the lyrics, image, and theatrics took a step forward. Heavy metal had a huge impact in the 1980ââ¬â¢s and there were many successful bands. Van Halen took heavy metal to new heights. After more than two decades of playing sold-out concert halls, selling millions of albums and enduring various lineup changes and solo projects, Van Halen is recognized as one of the most resilient and successful rockRead MoreHeavy Metals And Its Effects3249 Words à |à 13 Pages1. Introduction Heavy metals and their salts (Cu, Zn, Hg, Pb, Co, Ni,) are widespread industrial pollutants. In the waters they come from natural sources (rocks, the surface layers of soil and groundwater), the wastewater of many industrial enterprises and rain (polluted with smoke emissions). Heavy metals, as trace elements, are constantly encountered in natural waters and aquatic bodies depending on the geochemical conditions. Heavy metals are quite stable and cannot be destroyed. Entering theRead MoreThe Psychology of Heavy Metal Music Essay1680 Words à |à 7 PagesDoes heavy metal music have effects on society? Many people love listening to this kind of music and they love going to concerts where these bands are playing. Going to concerts and listening to music is the whole part of the music industry. If fans did not go to concerts, then musicians would not be able to make money and be successful. Many people love listening to heavy metal music; however, some people think that it could lead to violence, depression, and self- loathing. There have beenRead MoreThe Effects Of Heavy Metals On Tap Water1576 Words à |à 7 PagesReview of Literature This review of literature presents three themes necessary to understand the context of testing for heavy metals in tap water: the toxicology of heavy metals, their prevalence in tap water, and potential remediation techniques. Health Impacts of Heavy Metals in Tap Water Research on blood lead levels (BLL) and health bolster the well-established relationship between elevated blood lead levels and physiology. According to the Environmental Protection Agency (EPA), BLL aboveRead MoreRelease of Heavy Metals in the Environment648 Words à |à 3 PagesRelease of heavy metals in the environment is one of the major pollution problems. Day by day concentration of these metals is increasing in water supplies due to various industrial processing. Different industries such as steel manufacturing, fertilizer and pesticide industry, leather tanning, electroplating, metallurgy, mining and smelting of metalliferous, surface finishing industry, energy and fuel production industries, electrolysis, electro-osmosis, photography, electric appliance manufacturingRead MoreHeavy Metal Concentrations On Soil Samples2234 Words à |à 9 PagesHeavy metal concentrations in the soil samples taken from each of the six sampling sites are shown in Table 1. A clear gradient of element concentrations in the soils was observed among the study sites, especially for Cd. Metal concentration varied significantly among sample sites; Cd (H = 16.596, p = 0.005) had the highest significant differences among the sites, whereas Zn (H = 15.409, p = 0.009) had the lowest significant differences. Concentrations of Cd, Pb, Cu, and Zn in the soils from S1,Read MoreHeavy Metal Assessment Of Cosmetic Products Essay1113 Words à |à 5 PagesHeavy metal assessment o f some cosmetic products by ICP/OES Abstract: It has been shown that heavy metals toxicity to humans is as a result of long term or high level exposure to pollutants common in the environment including the air, water, food and numerous consumer products such as the cosmetics and toiletries. Cosmetics are seen as one of the most important sources of releasing heavy metals into the environment and the human biological system. Thus Cosmetic products must not be harmful under
Saturday, December 14, 2019
Infamous Robber on Loose Free Essays
He has successfully escaped from prison three times and this is his fourth escape from his past few years. One of the guard witnessed that Gladden had escaped by breaking through the timber ceiling and lowering himself to the ground with a rope fashioned from bed sheets. The other guards said that he had been hit by Gladden, when trying to go after him. We will write a custom essay sample on Infamous Robber on Loose or any similar topic only for you Order Now When the other guards came, Gladden was too fast to catch, even though they brought their dogs to track and hunt him. Gladden is an infamous American robber, burglar and thief. He was born into a poor family; he was apprenticed as a self-employer in tool supplier but took to theft and burglary in 2007, with little more than a year of his training to complete. He was arrested and imprisoned 4 times and escaped; making him an infamous public figure. When he was 6, his father died and no one continued his father Jobââ¬â¢s as a tool supplier. His mother then sent him to an elementary school. Gladden was treated badly and therefore became irresponsible and brutal. He was never graduated from the school, so his mother took him back home, and let him continue his fatherââ¬â¢s work . His business was not running well. He started his crime by robbing a woman in the market and stabbing her to death, because she did not want to give him her bag. He Is a small man, only 6ââ¬â¢0â⬠³ tall and medium built, but deceptively strong. He has a pale face with large, green eyes, a wide mouth, and a quick smile and has thick black hair. If anyone sees him, please report and call 333. He Is very dangerous person, whoso armed with handguns and a 9 millimeter rifle. There is a reward $50000 for Information leading directly to the arrest of John Stuart Gladden How to cite Infamous Robber on Loose, Papers
Thursday, December 5, 2019
Thermoelectric Cooling Prosthetic Premium
Question: Discuss about theThermoelectric Cooling Prosthetic Premium. Answer: Introduction There is an approximation of 1 amputee per 1,000 people in Australia. Furthermore, there are twenty thousand amputees in excess who reside in Australia (Anon, 2016). More than 50% of them went through the trans-tibial amputation (Anon, 2016). Most of them have reported the challenge of the overheating prosthetic leg socket. Our team, the Techs has developed a prosthetic device known as the Thermoelectric Cooling Prosthetic premium (TCP-premium) that automatically detects hyperthermia at the site and cools accordingly maintaining the normal body temperature (Cold Thermoelectrics 2013, pp.669-669). This project was a brainchild of collective responsibility and deliberation with the interests of the amputees at heart. Furthermore, an idea like this has never been born in Australia. There is a bulk of materials needed for the production of these prosthetics that are very helpful for the amputees. They are also meant to be cheap for consumption. Objectives Prevention of complications of overheating prosthetic sockets like skin burns. Reducing the cost of purchasing prosthetics. Promoting comfortability of the amputees in Australia. To ease the use of prosthetics. Promote high-quality production and durability. Produce water resistant, shock protective and fitting prosthetics (Aaos.org, 2016). Approach and Methods The criteria of design were the cooling power and weight system as well as simplicity and durability. Again, the project is open to qualitative and quantitative methods of research. The research on electrical systems concluded that 5500mAh batteries of 7.5V would be used. The methods of control, thermoelectrics, the interface of the user and the transfer of heat mechanics were also researched. The other approach is the use of electricity in making different designs and shapes to provide a broad range of products. Again, the demonstration of use shall be availed on the media for the consumers. Once supplied for use, questionnaires and surveys shall be used to evaluate the quality of TCP-premium. Budget Electric Components Amplifier Thermoelectric Low pass filter Circuits () Arduino (200) Batteries (20) Thermocouples Total Cost ($A) 1000 1200 1000 2000 1400 2200 1000 9800 Materials Material Aluminium Interior sinks of heat Aluminium Exterior sinks of heat Carbo fibre epoxy Weaves of carbon fibre Total Cost ($A) 300,000 100,000 100,000 100,000 600,000 Cost of purchasing an industrial area (place) for manufacturing $390,200 The total cost is 9800+390,000+600,000= 1,000,000 (Switchon.vic.gov.au, 2016) Reference List Aaos.org. (2016).Improving Prosthetics for Amputees. [online] Available at: https://www.aaos.org/AAOSNow/2016/Jul/Research/research04/?ssopc=1 [Accessed 22 Sep. 2016]. Anon, (2016). [online] Available at: https://www.tasamputee.org.au/ampstats.pdf [Accessed 22 Sep. 2016]. Cold Thermoelectrics. (2013).Science, 342(6159), pp.669-669. Switchon.vic.gov.au. (2016).Appliance Calculator | More ways to save | Switch On Victoria. [online] Available at: https://switchon.vic.gov.au/more-ways-to-save/appliance-calculator [Accessed 22 Sep. 2016].
Thursday, November 28, 2019
Education Of Sex In Schools Essays - Human Sexuality, Midwifery
Education Of Sex In Schools Education of Sex in Schools Sex is something that almost everyone will experience before they die. It is a subject that has been debated about for years. From the debate over birth control to the outbreak of aids. With all this history behind us, sex is becoming even more of an issue. With the new outbreaks of sexually transmitted diseases and the fact that sexually active persons are becoming younger, sex has now become a daily topic. Sex scandals in the media and talk such as who slept with who at last nights keg party are making these daily conversations apparent in high schools, middle schools, and in a lot of cases grade schools. As the saying goes monkey see monkey do one can only assume that this concept will pertain to these easily influenced children. That is why it is imperative that another side of this issue is presented on a regular basis, a side that demonstrates safe sex as well as no sex. Sex is a basic instinct in all-living beings; sex education in Georgia public schools should encourage absti nence because it is the only sure way to prevent pregnancy and disease, but not dismiss protective measures for those who become sexually active, because no matter much you emphasize abstinence, there will always be those who choose to participate in sexual activity. Sex is a basic instinct in all-living beings. Men and women were intended to fall in love and he gave us all a sex drive so that we could become one with that person. Whether people choose to be sexually active or remain abstinent, there is always a desire for sex in most males and females. In our culture, young peoples natural sexual instincts are stimulated by exposure to sexual messages. Because so many young people in our society are exposed things that portray sex appeal their natural curiosities are brought out, they are exposed to sexual stimuli early and often. The media has a huge influence in stimulating the drive for sex in people. Many ads use sex to appeal to the public. For example, Calvin Klein uses beautiful men and women, usually dressed provocatively, portraying them in a seductive way to sell fragrances and clothing items. These ads are successful because a huge majority of the people who see these ads want to be seen as sexually desirable and attractive to the opp osite sex, they are responding to a natural feeling. There are also many commercials for things such as beauty products that make the models look sexy and beautiful, this appeals to young ladies wanting to be like those models and getting the attention that the models get. By buying the product they feel that they can become sexy also. Music videos are also very explicit in the way they elude to sexual activity. This not only brings out natural curiosities in young viewers but also portrays sex as something casually enjoyable ignoring the consequences therein. Although the media portrays sex as something that is cool and fun and something that can be taken lightly, sex does have some real consequences which are nether cool nor fun as well as something that can make lasting scars on a persons life. The consequences that can happen when one becomes sexually active can be both emotional as well as physical. On the emotional side of becoming sexually active, often times young people are not ready for the stress that goes along with becoming emotionally attached to their partner. Not many would argue against the feeling that when you have sex with someone you give them a piece of your heart, you become one with that person and in turn, often times become attached to them. Some emotional effects of being sexually active can be life changing. One thing we deal with in our society today is a large amount of teen pregnancies. When a young woman becomes pregnant, it puts a huge amount of stress on her. She is faced with many decisions such as aborti on, adoption, or making enough money to raise the baby herself. This baby will change her life, furthermore many young womens bodies are not ready to take on the
Monday, November 25, 2019
The invention of the Airplane essays
The invention of the Airplane essays Orville and Wilbur Wright invented the Airplane on Thursday, December 17, 1903. These two brothers change history forever. Because of there great deal of passion and motivation we could travel at a faster speed all over the world. Of course that many inventions have there advantages and disadvantages. The airplane had and still has many ups and downs but we could try to over come these things and just try to see the positive side of this great invention. The Wrights Brothers had a good childhood. There parents tended to travel a lot so they got to know different places around the United States. As a young teenager Wilbur got hit with a bat across his face while he was ice skating. at the moment it didnt seem as if he was really hurt but later on he began to be affected with nervous palpitations of the heart which excluded the recognition of the idea of his parents, of giving him a course in Yale College. For the next four years, Wilbur stayed at home, suffering from a depression as from his heart disorder. During this time, Wilbur cared for his mother Susan, who was dying from tuberculosis. During the year 1900,1901,1902,1903 Wilbur and Orville decided to start working on a project together. They decided to put there hands into building the worlds first Airplane ever. At the time, it seemed a great deal of skill would be necessary to fly, so they found a great deal of practice would be necessary. Wilbur initially proposed to build a 150 foot tower with a pulley at the top. A rope, attached to the glider, would pass over the pulley and be tied to a counterweight, supporting part of the weight of the craft. Wilbur believed this arrangement would permit the pilot to practice the skills needed to fly even if the craft was not yet fully airworthy. Octave Chanute wisely recommended against this course of action, instead encouraging the brothers to find a place with lots of san ...
Thursday, November 21, 2019
CRITICAL APPRAISAL Essay Example | Topics and Well Written Essays - 2500 words
CRITICAL APPRAISAL - Essay Example This trend first came forth during the 1990s, when companies were trying to outsource non-core business tasks to specialist firms that cost less, which meant giving out a lot of information to smaller groups of contractors in different parts of the globe. It was like inviting outsiders into their company to help in finding innovations and solutions to current problems. This was a great fundamental change that spread among all companies, a business breakthrough made possible by Wikis. The Wiki platform has been one of the widely used Web 2.0 technologies. Wikis are web-based software that allow Internet users to edit data and other material (e.g. Wikipedia). So, the business model was named Wikinomics (Dawe, 2009). According to Don Tapscott, an expert on business-strategy and a co-author of Wikinomics: How Mass Collaboration Changes Everything, companies have realized that they have to connect to their customers and listen to what ideas they can offer. It means that companies have to interact with the outside world and gather ideas from the outside to use for new products or product improvement. This business breakthrough positions companies who are already using it in their strategies to face todayââ¬â¢s changing economy with ease and gear themselves towards success (Dawe, 2009). With the timeââ¬â¢s fast-paced global marketplace, successful collaboration is the answer to achieving a competitive advantage in the business field, and Cisco has through forward regarding mass collaboration. Cisco is known to be the worldwide networking leader that changes the way people connect, communicate and collaborate with each other. It is a multinational corporation headquartered in San Jose, California. It manufactures switches, routers, and other networking and communications hardware both for business and home usage (St. James Press, 2000). Cisco Systems was founded in 1984 by Len Bosack, Sandy Lerner, and Richard Trojano in
Wednesday, November 20, 2019
The relationship of the U.S with Iran and Iraq in the 1980s Essay
The relationship of the U.S with Iran and Iraq in the 1980s - Essay Example Anthology; in the chapter 8 of the particular book, under the title ââ¬ËThe Color of Violenceââ¬â¢ (INCITE 81) the issue of violence of people belonging in the white race against people of other races is discussed. The pieces of information retrieved through the specific book are analyzed based on a theoretical framework that focuses on the transformation of conflict: the ââ¬ËBig Picture of Conflict Transformation (BPCT) frameworkââ¬â¢ (Lederach 35). Through this framework certain solutions for facing the expansion of race-based conflicts are presented; however, the success of the relevant measures requires the willingness of the participants to change their beliefs in regard to social exclusion and equality. Such target is rather difficult to be achieved while the actual benefits of any relevant effort could take a long period in order to appear. The BPCT framework is consisted of three layers: at the first level, three aspects of the conflict are reviewed: ââ¬ËIssue, Patterns, and Historyââ¬â¢ (Lederach 35). Each of these issues are explained as follows: the Issue element of this layer refers to the present status of the conflict, the Patterns element implies the common forms of the conflict as developed through the years and the History element shows the status/ form of the conflict in its early years (Lederach 34-36). The elements presented above have a unique relationship; this relationship is presented in Figure 1, through a graph based on the BPCT framework of Lederach. The elements of the frameworkââ¬â¢s first layer interact in the following way: Issue, which equals to Present, is highly influenced by the Patterns; the latter have been gradually developed through the continuation of the conflict for a long term. If the history of the conflict, i.e. its forms in the long past, is checked then the Patterns and the Present status of the conflict would be easier understood. The second
Monday, November 18, 2019
Transformational leadership Assignment Example | Topics and Well Written Essays - 2500 words
Transformational leadership - Assignment Example Transformational leadership can be defined as in two different contextual values; theoretical value and the application value. In the theoretical value, transformational leadership can be defined through a formal qualification and circumstances that surround the situation at hand. It his qualification there is a fanatic grounding in the subject matter in order to get an in-depth look at the potential effect and implications especial when it comes to matters of ethics and moral department. In the application model definition, the definition of the theory is done and based on the application of the leadership skill on a particular endeavor or task. Having to site the various ways that transformational leadership can be defined a basic description of it can be given as leadership with enhanced motivation and performance amongst the following of a leader that has been done through various mechanisms. The leadership involves the connection with the following, being role models, challengin g the following to develop creativity and inspiring the following in order for them to share in the dream of the leader. Literature review One of the many famous scholars who have defined transformational leadership is James Macgregor Burns. Burns described transformational leadership as not just a set of behavior and characters but he described it as a continuous process where the leader exhibit high level of integrity morality and motivation aspects in their leadership. In his description of transformational leadership burns described that transformational leaders offer directional purpose to their subjects that not only transcend in the short term achievements by to more long-term and intrinsic need for their subject. He also added that transformational leaders tend to raise the standards trough appealing to the higher level of ideas, morals, and values as compared to other forms of leadership This definition by Burns was highly influenced by Maslowââ¬â¢s theory of needs. It i s on this theory that it is noted that different human being has different ranges of need and different extents that the individual intends to fulfill them. This theory of needs also acknowledges that different individualââ¬â¢s at different level have different efficiency level and motivation at work. This highly affects the satisfaction of needs. Transformational leaders as per Burns fall in the higher levels of the theory of needs: self-esteem and self-actualization levels. Components of Transformational Leadership Transformational leadership has over the years evolved from components of other of preceding methods of leadership. Some of these theories include the behavior theories, charismatic theory situational theory, and transactional theory. These three theories form the four basic components of transformational leadership. The three components can be described as follows Charismatic influence This can be defined as the level or degree to which any particular leader exhibit ing transformational leadership behaves or carries himself or herself.
Friday, November 15, 2019
Impact of Cushioned and Ball Chair on Classroom Behaviour
Impact of Cushioned and Ball Chair on Classroom Behaviour The Impact of Air Sit Cushioned and Ball Chair on Classroom Behavior of Students with Autism Spectrum Disorder (ASD) Nader Matin Sadr1, Hojjat Allah Haghgoo2, Sayyed Ali Samadi3, Mehdi Rassafiani2, Enayat Allah Bakhshi 2 1. Ph.D Candidate of Occupational therapy 2. PhD 3. Ph.D University of Ulster Introduction: Increasing number of children with autism spectrum disorder is 1 case per 110 Students is a great challenge for education system (1). Difficulty in engagement in class tasks, low attention span, and inappropriate behaviors are common in these students, which interfere with studentââ¬â¢s ability to participate in the educational mainstream (2). One reason that children with ASD have limited success in educational improvement with some intervention strategies is that these strategies do not address the sensory issues that may underlie the disruptive behavior (Ayres, 1972; Dunn, 2000). In an extensive research on 200 children with autism, %95 had difficulties in sensory modulation. Physiological need for proper sensory stimulation leads to spending most of student time on stereotype and repetitive movements to adjust their sensory system. Therefore, their attention would not be concentrated on learning and assignments in class. Greenspan and Wieder argued that the decrease in sensory processing may resulted in social isolation and inattention to class tasks (2).Viola and Noddings stated that children with low sensory sensibility require additional sensory stimulation to accomplish the tasks which require attention and concentration (3). Therefore, one of the prominent approaches to address the behavioral problems in these chi ldren is sensory integration approach. Sensory integration approach includes integration of three essential sensory systems: the proprioceptive, the vestibular, and the tactile systems. These systems, regulate the awareness of the body in space, joint and limbs positions, control sensations of gravity and movement, and perceives the sense of touch (4). Sensory Integration theory is focused on these special key sensory systems which are useful in personââ¬â¢s interpretation and application of sensory information. Proper sensory integration is a gate to successful educational learning through successful application of sensory and perceptual systems which would lead to forming vital skills for doing on task behaviors (4). Occupational therapists who work in school often use sensory techniques to increase studentsââ¬â¢ levels of attending, on-task behavior, and performance in the classroom. Many clinicians perceive these approaches to be successful in promoting functional classroom behavior. According to previous findin gs, 99% of occupational therapists use sensory integration techniques (5). Smith and Miller had been in contact with 292 occupational therapists in 1992 and found that Sensory Integration based-therapy was the most common applied technique among all of them (6). The effects of proper sensory integration, improve students ability to educational achievements and success by goal directed use of sensory and perceptual systems. This method can lead to success in learning (Gilman). Furthermore, formal research conducted on sensory-based interventions has supported this belief (Schilling, 2004; Schilling Schwartz, 2004; Schilling, Washington, Billingsley, Deitz, 2003). Hemmingsson and Borel in their investigations emphasized on lack of environmental modification in the classroom that directly refers to the limitation of studentââ¬â¢s engagement. So, lack of proper changes in environment can lead to restriction in learning. Furthermore, previous emphasis in pediatric occupational therapy has been on modifying the individualââ¬â¢s behavior with less emphasis placed on changing the environment, but focus is now shifting to ergonomic and sensory modifications to promote academic success (Asher, 2010). Various sensory-based strategies, including the use of alternative seating devices, have been examined by researchers and in many cases have been found to promote functional classroom behavior (Fertel-Daly, Bedell, Hinojosa, 2001; Schilling et al., 2003; Schilling Schwartz, 2004; Zissermann, 1992). Two of these functional methods are the using of balls and air cushions rather than common chairs. The use of therapeutic balls have been lead to marke d improvements in the in-seat behavior and legible word production, in school age children with attention deficit hyperactivity disorder (ADHD; Schilling, 2004; Schilling et al., 2003) and to increase in engagement and in-seat behavior of preschoolers with ASD (Schilling Schwartz, 2004) (7). Clinicians have been using dynamic seating systems such as the Disc ââ¬ËOââ¬â¢ Sit cushion for many years to assist students to increase their attention span. While clinical evidence that these systems can lead to desired results, but very little research has been completed and published to support their use. Sitting on a ball allows the child to pay more attention to activities while receiving stimulation in a passive form, rather than seeking stimulation from disruptive activities. Gamache-Hulsmans (2007) stated that students said they feel better when sitting on ball chairs. Students also felt more comfortable and said their backs did not hurt when sitting. The ball chairs are soft compared to regular classroom seats and are more fun to sit on (3). To what extent, dynamic seating chairs will effect on attention to on task behaviors and in-seat behavior? Therefore, in this research, the effects of sitting on ball and air cushion were investigated. With regards to thousands of special students with difficulty in sitting and classroom performance, these devices may be optional selection for solving the mentioned class behavior problems. Materials and Method Research Design: A single subject multiple treatments withdrawal design A-B-A-C was used to investigate the effects of 3 seating options including common chairs, therapy balls, air cushions on the in-seat, on class task behavior, communication and social behavior of four students with ASD. During the 2 A phases students were sitting on common chairs, in B phase on air cushions, and during C phase they were sitting on therapeutic balls. Participants: This investigation performed in an especial school for ASD students. A convenience sample including four participants was recruited from the Preschool students in autism elementary school in Mashhad, Iran. Participants were diagnosed as ASD by specialists and taking their own medications regularly throughout the study. According to teachersââ¬â¢ report, all children were identified as having difficulty with in-seat behavior and on task behavior. Procedures: Informed consents were obtained prior to experiment and contents were comprehended and signed by studentsââ¬â¢ legal representative. Data collection: Gilliam Autism Rating Scale-Second Edition (GARS II) and Vineland testes were given and were used to examine social and communication skills of students in the first and final of research for all students of class. To assess the studentsââ¬â¢ class behavior, staff was instructed to give no additional feedback on students sitting behavior either positive or negative throughout the duration of the study. But, if a student exhibited behavior that could be potentially harmful to him, peers, or the staff must have been prevented by staff. To remove any novelty effects, students were introduced with stability balls and air cushion instead of their chairs for 2 full days, before baseline data collection. Video recording: Setting camera recorders in class, Studentsââ¬â¢ behaviors during class task (sitting period and attention performance related to class tasks) were recorded all the day-time. Studentsââ¬â¢ behaviors were quantified three times per week, one day after another, with an overall of 12 sessions. Two occupational therapists were trained as observer of videos. In-seat data were collected via momentary real time sampling (MTS); the observers coded the studentââ¬â¢s behavior on the basis of several behavioral classifications. The mean score across raters was used to calculate weekly on-task and in seat behavior. Videos were regularly checked throughout the study to determine inter and intra rater reliability agreement. Observers individually, watched videos every 10-s intervals, stopped it and marked the observation on each childââ¬â¢s designated worksheet, thus resulting in 60 observations per session per participant. This MTS interval would serve to make the obs ervations more valid and representative of the childââ¬â¢s behavior throughout the baseline and interventions periods. Additionally, GARS II and Vineland testes were given and were used to examine social and communication skills of students in the first and final phases of research for all students of class. Studentsââ¬â¢ class behaviors during two intervention phases (each 1 week) were compared with class behavior during baseline and withdrawal phases (each one week). Teacher Social Validity Scale: Social validity questionnaire was used at the end of the study to evaluate teacher opinion regarding the intervention. The questionnaire consisted of 8 questions and assessed effects of intervention on sitting and activity participation as well as the extent of preference of stability balls or air cushion instead of chairs. Questions were answered on a 5-point Likert scale that ranged from strongly disagree (1) to strongly agree (5). On-Task Behavior:â⬠Engagement was defined as ââ¬Å"oriented towards appropriate classroom activity or teacher and either interacting with materials, responding to the speaker or looking at the speakerâ⬠(Schilling Schwartz, 2004, p. 427). This definition included reading, and writing as well. In-Seat Behavior: Data on in-seat behavior was defined according to Schilling and Schwartz (2004) and quantified during video review. ââ¬Å"Any portion of the childââ¬â¢s buttocks in contact with the seat portion of the chairâ⬠(Schillling Schwartz, 2004, p. 427) and ââ¬Å"the four legs of the chair in contact with the floorâ⬠(p. 427). For the intervention phase (B), any portion of the participantââ¬â¢s buttocks in contact with the air cushion, air cushion in contact with the chair and the four legs of the chair in contact with the floor. For the intervention phase (C), in-seat behavior was defined as ââ¬Å"any portion of the participantââ¬â¢s buttocks in contact with the ball, the ball in contact with the floor, and at least one foot in contact with the floorâ⬠(Schilling Schwartz, 2004, p. 427). GARS-2: The GARS is a screening instrument used for the assessment of individualsââ¬â¢ ages 3ââ¬â22 years old who exhibit behavioral characteristics that may be indicative of autism. This is a standardized instrument, which consists of 42 items divided into three subscales that describe specific, observable and measurable behaviors. The items included in this instrument are based on the definition of autism adopted by the Autism Society of America (2003) and on the diagnostic criteria for autistic disorder published in DSM-IV-TR. Vineland Materials: Therapy balls: The selected therapy balls to be used in classroom use, had 55-cm-diameter (n Sit ball by â⬠¦) with five little feet to prevent it from moving or rolling when used as a sitting ball. Therapy balls were individually fitted with air pressure into the ball (at different degrees of inflation) that confirm the student could sit comfortably with his feet flat on the floor with knees and hips flexed at 90 degrees. Air cushion: The Disc ââ¬ËOââ¬â¢ Sit cushion is a round and widely available. The Disc ââ¬ËOââ¬â¢ Sit, are instability cushions, strong enough to sit. It is designed to fit on a classroom chair and provide movement while seated (7). Chair: A general wooden with iron frame classroom chair without armrests (height, 72 cm; depth, 34 cm; width, 39 cm; seat height, 36 cm). 1. Participant 1, speak with himself slowly and repeatedly with low attention and cannot tolerate sitting on chair. Participant 2 an 8-yr-old boy, he has low level endurance for performing occupation and sitting. He was hyperactive. Participant 3 an 8-yr-old boy, he has visual perceptual problem with low attention and endurance. Participant 4 a 11-yr-old boy, auditory problem, he likes, Results: During Phase A1 the number of times Hossin was on seat ranged from 11 to 18 (mean [M] = 14). During Phase B, the range was 30ââ¬â36 (M = 34). During Phase A2, (chair) 15-38 (M = 23). During Phase C, (ball) the range was 2-10 (M = 6). The number of on seat for Hossin shows increase on air cushion and decrease in sitting on ball. During Phase A1 the number of times Hossin was on task ranged from 23 to 32 (mean [M] = 27.5). During Phase B, the range was 42-56 (M = 50). During Phase A2, (chair) 33-44 (M = 39). During Phase C, (ball) the range was 47-51 (M = 48). The number of on seat for Hossin shows increase on air cushion and decrease in sitting on ball. Each childââ¬â¢s data are presented in separate graphs in Figure (A) Total number of times that Hossin was on seat each phases. (B) Total number of times that Hassan was on seat and engaged each session. (C) Total number of times that Parsa was on seat and engaged each session. (D) Total number of times that Amir was on seat and engaged each session. Films was regularly checked throughout the study for determining inter and intra rater reliability agreement. Final inter rater agreement percentages ranged from 93% to 100% for in-seat behavior and from 80% to 90% for on-task behavior. They had a mean age of 8.75 à ± 1.9 years, mean height 132.5 à ± 9 cm, and mean weight 29.25 à ± 8.5 kg. Each child demonstrated a unique response to the use of the therapy ball chair and air cushion. Discussion: Conclusions: This investigation suggests that dynamic seating in the classroom, increases in-seat behavior on task behavior for children with ASD. However no one type of seating was found appropriate for all children with ASD. For some forms of classroom behavior, the use of dynamic seating appears proactive, servingà as a positive behavior support strategy to assist in creating an opportunity for learning. References 1.Koegel L, Matos-Fredeen R, Lang R, Koegel R. Interventions for children with autism spectrum disorders in inclusive school settings. Cognitive and Behavioral Practice. 2011. 2.Schilling DL, Schwartz IS. Alternative seating for young children with autism spectrum disorder: Effects on classroom behavior. Journal of autism and developmental disorders. 2004;34(4):423-32. 3.Horgen KM, Kathryn M. Utilization of an Exercise Ball in the Classroom: Its Effect on Off-task Behavior of a Student with ADHD [thesis]: University of Wisconsin; 2009. 4.Wu W-L, Wang C-C, Chen C-h, Lai C-L. Influence of Therapy Ball Seats on Attentional Ability in Children with Attention Deficit/Hyperactivity Disorder. 2011. 5.Tunstall H.R. Effects of Alternative Seating on the Academic Engagement of Children With Autism 2010. 6.Lang R, Oââ¬â¢Reilly M, Healy O, Rispoli M, Lydon H, Streusand W, et al. Sensory integration therapy for autism spectrum disorders: A systematic review. Research in Autism Spectrum Disorders. 2012;6(3):1004-18. 7.Schilling DL. Alternative seating devices for children with ADHD: Effects on classroom behavior. Pediatric Physical Therapy. 2006;18(1):81.
Wednesday, November 13, 2019
Mathematical Education: A comparison between Japan and America Essay
Mathematical Education: A comparison between Japan and America The mathematical education provided in the United States has proved to be inferior compared to that of other countries. Specifically the Japanese and other Asian educational systems produce more educated mathematics students than the United States. American children tend to score lower on standardized testing than Asian students do. Many studies have been done by research groups such as the National Center for Education Statistics of the U.S. Department of Education and the International Association for the Evaluation of Educational Achievement showing the differences in teaching methods between the United States and Japan. The teaching styles and the cultural differences can account for the gap in performance. One of the most famous studies of its kind is called Pursuing Excellence, the Third International Mathematics and Science Study. This study was conducted in 1995. The Mathematical knowledge of half a million students from forty-one countries was tested. Of these countries, the test shows that American students performed below average in mathematics. During the same research project, classrooms in America, Germany and Japan were videotaped and analyzed. (1) When the curriculums in various countries were reviewed, researchers consistently found that American teachers spend a small amount of time on many topics where as other countries focus on fewer topics with more depth of topic and more repetition. Another variation is that American teachers, for the most part, have received more formal education than Japanese teachers, but have less classroom training and experience. Japan has a much higher focus on teaching quality than the United States. Most of t... ...needed to solve the problem at hand. Japanese teachers provide their students with the knowledge they need and the ability to think so that they can apply this knowledge in various situations. For this reason, Japanese students have been able to perform better in studies than American students can. Bibliography "Inside Scoop: a worthwhile international comparison." National Education Association of the United States. 1997. (website- address unknown) Ibid "Understanding and Improving Classroom Mathematics Instruction: an overview of the TIMSS video study." Phi Delta Kappa Inc. 1997. (website- address unknown) Ibid Steffe, Leslie, Nesher, Pearia, Cobb, Paul, Goldein, Gerald, Greer, Brian. Theories of Mathematical Learning. New Jersey: Lawrence Erlbaum Associates, Publishers, 1996. P. 6. Ibid, p. 6-7. Peer reviewed by Melissa Lenzi and Helen Hunt
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