The Longest Day (World War II) Essay Example | Topics and Well Written Essays - 1500 words

The Longest Day (World War II) - Essay ExampleAlthough The Longest Day to some extent lacks personality discipline and the typical deal plot that trails the plight of the hero, it still succeeds to include the watcher in the dreadful actions that encircled the D-Day. The movie depicts to carry every last(predicate) the divides impartially, from the Germans, the joined States, French and the British. The film regularly covers the German point of action, and how they are getting ready for the violence against the allies, who were their enemies. What makes this movie so convincing is that it attempts to cover the two sides. The film is approximately two hours and fifty minutes in length with a vast joint of a cast, all playing supportive roles. The performers were at all times of the identical race as their fellow characters, and spoke in their instinctive languages. This mouthwatering film offers the feel of the D-Day Offensive, Operation Overlord which occurred on June 6th, 1944. T his mission pertain about three and a half million men, two-thirds of whom were Americans. It shows the horror which was undertaken during the preparation and final assault taking place. An issue of the film was the site of invasion. The movie clearly shows that it was difficult for the Germans to comprehend the day when invasion was to happen (Blouin, Blouin and Rosenberg). The allies echoed the airwaves for several months with coded messages about the expected invasion that was taking the place by surprise. Their main accusing was to create or awaken resistance from the French forces (Zanuck). The movie did not show the fact that the French soldiers had been mobilized to start assault on the morning when the assort forces began to attack. Hitler during the attack was asleep and the surprise caught everyone by surprise. The film had many fine performances. One of which involved a brave woman who attacked a German soldier at the railmodal value. In deception, John Waynes firm, p etulant commander retaliating his troops, the courageous, British soldier who hints the first round of attack in the at dark to seize a passage, the UK beach commandant who pushes his troops to stand up because the organizations charm is in vulnerability. This scene shows Winston, the talisman and friend of the beach frontrunner, and the quarrelsome, pessimistic German Luftwaffe pilot, who constantly is in worry for his weary superiors (A&E Television Networks, LLC). The plays act was very informative. One of the German high command officers wondered if the allies were on their way to attack the Pas de Calais in the place of Normandy. They seem troubled and worried, and tried but were deprived of attainment to reach Adolf Hitler. They made a wrong choice to permit German troops under their control stay on base. The German High official in France ascertained that the Allied strategy of attack would immerse them off. The movie started by covering a short background of political and military leaders that led the invasion (A&E Television Networks, LLC). One of the famed civilian scenes was when a German soldier goes to French dairy rancher and orders him to give up his milk and leaves on a mule. These actions made the French inhabitants very umbrageous (Blouin, Blouin and Rosenberg). Later on, same French dairy rancher overhears the commencement of the scuffle and the weaponry blasts he opens his door and praises the Allies. This movie heavily embedded in the allies

Home Health Assignment Example | Topics and Well Written Essays - 500 words

Home Health - Assignment ExampleThe services most popular amid the denture precaution agencies broadly include physical therapy, speech therapy and other consumer oriented medical facilities. The trained nurses can even provide advanced healthcare at home if supported with the diversified apparatus needed for such treatments (CARIE, 2008).Voluntary organizations that help in growing the healthcare needs can be identified as the American Association of Ambulatory Health Care (AAHC), Centers for Medicare and Medicaid Services (CMS), Joint Commission on Accreditation of Healthcare Organization (JCAHO), National Committee for Quality bureau (NCQA) among others, who have been providing the home healthcare services within the society (Lundy & Janes, 2009).The initial health care plan for home care is identified as a defined period of certification. This certification needs to be renewed after the completion of its period for developing the effectiveness of the entire medical system. He nce, it gets an opportunity to be redeveloped based on the changing needs of the medical services. This could be duly identified as possessing a huge amount of development within the line of products of medical information (Pamela, Fenstemacher & Winn, 2010).The importance for documentation is thus noted to be one of the most important parts of the medical needs, as it would help in developing the instances of reimbursement and enhance the effectiveness of the system. Thus, the needs for documentation are important, as it helps in developing the overall attributes associated with such reimbursement and enhances transparency of the process. This further helps in developing proper documentation to be used for assistance in future (Pamela et al., 2010).Oasis C is a modified version of the Outcome and Assessment knowledge Set (OASIS), which is one of the compulsory documentations required for the home healthcare agencies. The purpose of OASIS-C is to provide a proper manual for the

The end of the book Essay Example for Free

The end of the book EssayMr and Mrs Birling are holding onto a pretence and are proud and do not want to be proven wrong. Unlike Sheila who has become humbled through this conversation in the evening. aft(prenominal) the family disc everywhere that the Inspector was a hoax, Sheila still does not believe he came to trick them she thinks he came to teach the Birlings and Gerald a lesson about unselfishness and caring for otherwises kind of than themselves. She says that the facts are still the same, that the family were still very selfish and uncaring. Sheila is the character who has learnt the most. Her refusal to retake the engagement ring shows that she has matured at the end of the evening. She approaches Gerald in a polar manner, as she now understands that she doesnt know Gerald properly, the way she should. She has to start all over again to get to know him. She realises that she and Gerald must be honest with each other if theres to be any relationship between them. She says, You and I arent the same people who sat down to dinner here. Wed have to start all over again, getting to know each otherThere could be many explanations for why Sheila Birling responding to the Inspectors and why her father Mr Birling did not. Sheila reacted very positively and mum the Inspector because the Inspector was asking at her lever a level that she would understand.Sheila is more of a sensitive character and is very vulnerable someone potentiometer very easily make her change her views. Since she is still young, and she is not set in her ways, she has not yet created her own philosophies and ideas as her father has she can be influenced by the opinions of other, especially as this Inspector had an imposing presence and also used very emotional tactics to convey his message.As proven at the end of the play, the Inspector was in reality not an Inspector. The author leaves us in suspense as to who this may be.I believe, Mr Goole could be a state-controlled who has b een studying the case of Eva Smith for many years and now realizes all the trouble she has gone through, decides to teach the Birlings a lesson, as to show them how selfish they are.He could also be a prophetic character from the unreal world, like for example, an angel or a fairy come on behalf of the poor crush young Eva, again solely to teach the family a lesson.Mr Goole could also be a friend or relative of Eva Smith who cares about Eva and is very upset and angry about how she has been treated, therefore comes to avenge her oppressors in some way.He could be some sort of prophet or messenger come from divinity fudge to avenge the poor girl and to teach the Birlings something important.He could be a polite Inspector from another district who came to work on the case.J.B. Priestley is a sociologist and in the play, the Inspector expounds many socialist ideas about having a fair world, etc. Therefore, the Inspector is representing Mr Priestley as a sociologist to convey his mes sage to viewers.The Inspectors translator is also the authors voice all the authors ideas and philosophies are portrayed as correct with the help of the Inspector and Mr Birling, who is a capitalist and proven wrong at the end of the book.

Industrial Revolution Essay Example for Free

Industrial alteration EssayIndustrial Revolution is regarded as a very important period in human suppuration which occurred in the period towards the end of the 18th century stretching to the 19th century. Industrial revolution is said to have begun in the United Kingdom and subsequently spread to former(a) parts of the world including the rest of Europe, North America amongst other parts of the world. During this period there were major transformations in the agricultural sector, transportation, and manufacturing among other spheres of life. These changes were to have profound impacts on the social, economic, and cultural life of the people in Britain which was the cradle of the revolution. This paper shall examine the central ways in which the Industrial Revolution changed the western societies. Impacts of the Industrial Revolution The inception of the Revolution is regarded as a crucial turning point in the storey of mankind as it conduct to alterations in virtually every aspect of life.The Revolution started towards the end of the 18th century when there was mechanization of the textile industry, emergence of new iron reservation skills, and an increase in the utilization of polished coal. thither were improvements in the transport network which facilitated exchange of goods and services. Generally, a ontogenesis in various industries was witnessed and manual aim was replaced by mechanization which light-emitting diode to increased production . The textile industry was among the first to feel the impacts of the industrial revolution. The invention of the cotton gin in 1794 brought aptitude in separating of cotton seeds from fiber.The discovery of the sewing machine in 1846 further revolutionized the textile industry as the making of clothes moved from homes to industries. Apart from the impacts of the industrialization on the domestic industries, the revolution led to increased productivity in the farms due to mechanization of agriculture. Wit h increased productivity in the farms, industries cropped up and individuals clustered in particular regions working in the industries or engaged in trade. This eventually led to the development of towns and cities .Advancement in technology during this period led to the growth of capitalism as the owners of the means of production grew richer. There was an increase in the economic growth which was due to the new technologies of the industrial revolution as seen in the doubling of the UKs purchasing power and a rise in the total national income during the 19th to 20th century . The revolution also brought slightly changes in the countrys political structures in Britain as capitalists begun replacing the land owners of the agrarian period to become influential in the countrys economic and power structure.There were also alterations in the working conditions as factories provided the workers with poor working conditions. These included poor ventilations, overcrowding, child labor was on the rise, and individuals were seedy paid and worked infra dangerous and unsafe environments . The laborers were paid less wages that led to development of slums since they could hardly afford decent housing. The workers were generally working under extreme conditions which forced the government of the day to pass legislations that would govern the interests of the workers.The workers also initiated efforts that resulted in the creation of trade unions which agitated for their interests . The Industrial Revolution also led to developments in the transport and communication sector. Several inventions led to the efficiency in this sector as road networks were improved, water transport boosted through the invention of steam engines, and communication made easier especially with the discovery of telegraphic machines.Railway transport was also developed and this eased the transport of bulk goods, products, and raw materials to the industries . Conclusion There is no doubt that ind ustrial revolution was a defining moment in human history. There were great advancements and innovations that were aimed at making life more than efficient at the same time increasing production. Though the revolution came up with its challenges, it remains to be a crucial part of human history as it totally revolutionized the world into a new order.

Dementia in the world Essay Example for Free

Dementia in the world EssayAlongside traditional A Levels in Physics, Chemistry and Biology, QMC offers an A Level in Applied Science. This is an ideal course for pupils who have studied the GCSE Applied Science and who are interested in a intelligence found career. COURSE ENTRY REQUIREMENTS General entry requirements are 5/6 GCSEs at C or above to include Double Science, English and Mathematics.WHAT kind-hearted OF JOB/DEGREE CAN THIS SUBJECT LEAD TO? Success in the A Level will enable you to apply for work in science based companies, the NHS or apply for Foundation degrees at university such as FdSc Applied Medical Technology FdSc Medical Imaging ( skiagraphy Technician) FdSc Medicines Management (Pharmacy Technician) FdSc Oncological Therapies (Oncology and Radiography Technician) FdSc Paramedic Science, currently available at Portsm awayh DURING THE AS COURSE YOU WILL STUDY THE FOLLOWING TOPICS In the AS year you will be examine 3 units which cover all 3 sciences. Two of the units are assessed by portfolio with the third unit being assessed by examination. This course is therefore best conform to to students who find producing a steady flow of written reports preferable to sitting several exams at the end of the year. The portfolio units look at how science is put to hire in the workplace.You will visit a range of local organisations and see science in action. Back at College you will learn how to carry out some of the techniques that scientists use at work and write reports about issues relevant to the use of science. As you go you will build up a portfolio of licence of your growing skills. The examined unit focuses on the use of science in healthcare.You will look at how the bodys circulatory and respiratory systems work, and how they can be monitored and investigated. This will include considering the ethical issues involved when diagnosing and treating illnesses. DURING THE A2 COURSE YOU WILL STUDY THE FOLLOWING TOPICS In the second year yo u will be information how to carry out an extended investigation and then choose one you would like to study in depth. This investigation, and a unit on the techniques involved in genetic engineering and biotechnology, are both assessed by portfolio. A final examined unit brings together all the skills you have developed during the course on workings as a scientist, including collecting samples, developing methods for carrying out tests, working safely, analysing data, and ensuring accuracy and reliability in all you do. HOW IS THIS COURSE ASSESSED? AS Level A2 Level 3 Units. 2 units portfolio evidence, 1 unit examination 3 Units. 2 units portfolio evidence, 1 unit examinationIF YOU REQUIRE ANY ADDITIONAL INFORMATION Please affair the Head of Department, Dr Eddie Grimble, on (01256) 417500

Essential Criteria For An Ideal Learning Environment English Language Essay

Essential Criteria For An Ideal Learning Environment English Language EssayAfter World war II, while the bomb damaged parliamentary buildings were universe reconstructed, Winston Churchill urged that design of the great oratory halls remain as before. Fearing that a different plan might precipitate the importance of their traditional form of debate, he stated, we shape our buildings and then they shape us.His statement raises an of import question Does the man made environment affect how we harp and act within it? Commercial, retail and entertainment industries pay close attention to the formation of space. We often judge the quality of a restaurant prior to consume the cuisine. We are then surprised or justified in our opinions of the quality of a product based on the surroundings within which we experience it.Do schools and school elbow room spaces enhance or detract from the listening process? Learning is essentially a mental process. So why do we bother with how the class room looks or feels? Educational philosopher John Dewey urged that the intoxicateing environment be humane and attentive to individual children rather than be a form of mass instruction. especial(a) t for each oneers however, sometimes boast of their ability to practice their art anywhere and under adverse circumstances.A fundamental question must be asked How does one learn? Early discoveries by noned Swiss psychologist Jean Piaget and more recent theories explored by educator Howard Gardner have expanded the more traditional views of the process of learning. Age, sex, burnish and individual character greatly influence non only ones ability to learn besides indicate a multitude of ways that an individual potentially can learn. Learning is no longer considered merely an accumulation of knowledge but rather the understanding or ability to construct knowledge in meaningful ways for a particular purpose or solution to a well defined problem.The individual style of a teacher, the c urriculum being presented, the maturity and learning ability of the individual schoolchild must each be appeased within the classroom space. If these are thoughtfully considered, the new learning environments entrust enhance, not hinder the learning process. As more is discovered about the learning process, the curriculum and style of pedagogy willing periodically be updated, fitted and re-evaluated. The classroom space will also undergo a similar scrutiny. The physical environment then, should not be constructed to manipulate or influence a particular style of statement or learning, but rather be responsive to and adaptive by individual teacher and student needs.Over the sometime(prenominal) fifteen years, I have worked with several educators to design, build and remodel dozens of educational facilities. The early(prenominal) two years were spent in observing and researching teaching practices through a masters thesis study. I have concluded that the following six (6) gene ral categories include criteria which are essential components necessary for shock the demands of learning based schools. Both the designer and the teacher should understand and be aware of these qualities to ensure their careful consideration to construct an optimum learning environment.1. Size, cast and ScaleThe size of a room affects the possible arrangement of activities within it. Generally, the larger the room, the more flexibility and the smaller, the more intimate. A rectangular shaped room affords more interactive visibility between occupants whereas L shaped ones or ones with alcoves bequeath for variety of privacy to individual learners. Movable wall devices can accommodate many different shapes. Scientific observations indicate that the student builds confidence through achievement. The ability to relate to elements within a room affords a degree of self-importance empowering through scale that is relative. Size and places of counters, windows, furniture and storage elements all should be considered or be adapted to the scale of the user(s).2. Acoustical Quality and Noise visitAcoustical liveliness is a product of room configuration (parallel walls), surface finishes (hard, soft), corporeal density (solid, hollow) and air tightness (sound transfer). A room designed for medicinal drug is constructed very differently from one designed for quiet conversation. Shower spaces are great for singing but poor for conducting discussions. If group activities are more ordinary than a single lecture source, rooms should more sound absorptive. Learning is hampered when the teacher or students do not have a common wording or when students are unfamiliar with a strange concept if the spoken words are not heard or clearly enunciated. Hard walls much(prenominal) as glass or marker calling cards should not oppose each other but rather be opposite an open storage areas of differing senior high school and depths. Disturbing echoes or flutters can also be mi tigated by angling walls at least 5 degrees out of their original parallel plane. carpet on floors and acoustical ceilings cut down on reverberation (sound that continues to bounce). Massive walls or ones with sound insulation prevent exterior noise transfer but only if there is no air gap (walls only to the bottom of suspended ceilings do not help). If windows or doors must be opened for ventilation, a low frequency sound can be used to mask conversations or exterior noise which whitethorn disturb individual discussions.3. Illumination and Views naughty energy costs caused the design and production of efficient lighting systems for both business and school facilities. Incandescent fixtures have been replaced by fluorescent fixtures as the close to common electric light source within classrooms. The human need and desire for natural sunlight and for views to adjacent spaces (for orientation) requires that the two illumination sources be equilibrise for a variety of activities. Bec ause solar day varies with the season, time of day, weather and position of glazing, controls are necessary for its admission into the interior. Electric light sources are more easily controlled not only when balancing with sunlight but for the specific tasks that need illumination. Glare caused by the imbalance of light sources within ones field of view or bounced turned of a reflective surface (marker board or computer monitor) is one of the major causes of irritation and is a detriment to learning. Knowledge of the extreme ratio of daylight to electric light (as great as 5001) requires that control devices for reflecting, shading or blocking be carefully considered. Reflectivity of surface finishes, arrangement and location of light sources as well as their method for diffusion within the classroom all play an important role in the comfort for the student and teacher for the purpose of learning.4. Temperature, Humidity and VentilationSeveral studies indicate that teachers rather than students are more upset by temperature fluctuations within a classroom. Test tally are not adversely affected by temperatures except under extreme conditions. Students generally like the temperature slightly cooler (5 degrees to 10 degrees) than do teachers. Traditionally, boys or mens clothing insulates their bodies slightly better than does girls or womens clothing. Because the temperature, humidity and ventilation of an enclosed space will depend on a number of factors including the configuration and materials of the building, measuring of glazing, size and volume of the space, number of occupants and their current state of activity as well as the heating and cooling system, flexibility for manipulating that system is extremely important for comfort. If the teacher must override existing controls by opening doors or windows to augment their comfort, the system is self defeated and the teacher probably agitated (i.e. not doing the best teaching). Controls should be indepen dent for each space and be simple to operate.5. Communication, Electrical Power and TechnologyThe advent of electrically powered devices over the past four decades has increasingly invaded the home, business and educational environments. From satellite broadcasts to surfing the Internet, learning opportunities are constantly changing. Regardless of the individual pedagogy or curriculum utilized, a variety of electronic tools now augment and have become integral to the classroom. The business community has pioneered and developed flexible systems that are easily planned and pronto available now within the classroom environment. Audio and data transfer systems are simple to network and upgrade when necessary. Raceways or conduits provided at regular intervals allow present and future planning of communication, power and technology. Floor (power and data) outlets should be avoided because of the fortuity of maintenance or tripping hazards. Counter upside and surface outlets, overhead poles or retractable coils provide needed flexibility.6. Material Finishes, Textures and ColoursMore controversy is evoked over the colour or texture of a finish material than any other aspect of its use. Studies indicate that 25 % of the population view or perceive colour differently than do the remaining majority. Colours not only evoke cultural style but have historic and symbolic references as well. Bright and light colours tend to advance and smutch or dark colours tend to recede. Smooth surfaces appear harder than do rough textures. Self esteem affects an individuals learning progress. Since much of the work displayed within a classroom is student work, ease of display is extremely important. Surface colours must be none competing with exhibited work. Tack able wall surfaces are created with all sound absorbent (tack able) board or vinyl wall material wrapped around a durable surface and then adhered to the substrate. Finishes within while away of students should be cleana ble, durable and/or replaceable. Apart from the finish of materials, the perception of newness or cleanliness also affects learning. Equivalent schools were observed as one was repainted and the other was not. Attendance and demonstrate scores improved dramatically in the facility which was simply refinished.Conclusions on InterrelationshipsIt is obvious that all of these criteria are interrelated. A small habitable space with a large amount of glazing with southern exposure (in the northern hemisphere) will most likely be bright and warm on a clear day. If a window is opened adjacent to a playground, noise will penetrate the room. If walls are finished with a glossy paint over hard surfaces such as plaster, speech will be difficult to understand especially as more individuals speak simultaneously. If a marker or chalk board is opposite an exterior window, it will be difficult to see because of the resultant glare. If floors are finished with a composition tile which was intended f or easier maintenance, the room will reverberate and be livelier than if finished with carpet. If the carpet colour is plain and either very light or dark, it will quickly appear to be dirty. on that point is nothing new or remarkable about these environmental considerations. We consider most of them when using our native common sense. We often make individual adjustments to our animateness and learning space(s) to be more functional or comfortable. However, sometimes these adjustments may diminish an others opportunity for learning. Tin foil or shades on windows lower occasions for a view of the sky, a beautiful sunset, the landscape or an outside object used to illustrate a particular lesson. Shrinking the height of an existing classroom to reduce heating or cooling costs may alter the sound qualities or prevent the display of student work. bright coloured walls or high light levels may amplification glare and possibly unwanted heat gain through lamp radiation. Hard cleanable surfaces may simplify maintenance tasks but increase reverberation or prevent teacher or student displays and consequently provide an atmosphere which is unpleasant to learn or teach within. All of these well intended decisions resulted in unintentional problems which are known to affect childrens learning ability or make education more difficult.When planning or remodelling a classroom environment, a successful (subjective) learning space requires that both the educator and environmental designer understand the affects of each criteria quality with respect to learning as well as each criterias interrelationship to each other.A good classroom must include the possibility for individual control as well as provide a well proportioned, stimulating and comfortable learning space which takes advantage of local character, solar orientation, appropriate views, and proper functional interaction with adjoining learning elements and strong connections with the surrounding community. Allowing teachers to easily adapt learning environments to their individual pedagogical style(s) will increase the opportunity for student learning.

Orthodontic Tooth Movement: Ideal Rate and Force

Orthodontic Tooth Movement Ideal Rate and contractAnanth KadekodiDescribe and discuss the concept of the ideal tramp and consequence for Orthodontic tooth action. endure evidence for and against the claims of this ideal.Orthodontic tooth movement is a process that combines pathologic, physiologic and biological responses to externally applied forces (Wise, King, 2008). It is explained by the insistence tension theory and mug up bending theory. Pressure tension theory states that tooth movement occurs in the periodontic space by creating a pressure situation and a tension side (Schwarz, 1932). Conversely, bone bending theory states that force delivered, results in bending of the tooth and its surrounding structure, whilst altering the cellular activity for bone remodelling. Additionally, tooth movement is in addition comprised of three phases, which include the initial phase, lag phase and post lag phase (Burstone, 1962). Currently, there is being a shift, from the emphasi s on force application to the biological and biochemical factors change tooth movement (Mayne, 2014). Nevertheless, understanding of the force magnitude and its temporal characteristics is important ascertain the ideal ordain and force of orthodontic tooth movement. Study conducted by mingled scientists, showed that variables such as force magnitude continuous vs sporadic force individual variations tooth variations and different types of tooth movement play a role in determining the ideal and rate and force of tooth movement.Studies by Hixon et al. (1970) showed that higher forces moved teeth farther in 8 weeks than luminanceer forces. The studies showed an increase in upper jawbone laniary movement in all but one of the subjects. The trials demonstrated that as the force increase from 200 grams to 300 grams, the tooth movement for patient B increased from 0.15 mm/week to 0.25 mm/week. This is a result of the higher forces generating a metabolic response sooner and at a mo re rapid rate, resulting in an increased tooth movement. Additionally, study conducted by Andreasen, and Johnson (1967) on sixteen females, showed teeth exposed to the 400 grams moved further than 200 gm, at a rate of 2.5 quantify to that of the lower force. Moreover, heavier force, similarly cause an increased anchor teeth movement (Storey, 1973). However, studies by Owman-moll, Kurol, and Lundgren (1996) have claimed that maximum tooth movement can be achieved even with light forces. This is also support by Storey (1973), who state little differences in canine movement between heavy and light forces. Moreover, Ren, mineral tar, Kuijpers-Jagtman (2003) support this viewpoint by stating that, there is no specific optimal force but a wide range of forces evoke a biological response in the periodontal tissue for ideal tooth movement. Additionally, Owman-moll et al. (1996) through their studies showed that, while heavy forces increase tooth movement, they can also damage the tooth and increase the rate of informant resorption. Storey (1973) observed that nigh trauma is associated even with applied light orthodontic forces. In order to produce adequate biological response in the periodontium, light forces cause frontlet bone resorption but heavy forces can cause PDL necrosis, along with bone and root resorption (Krishnan, Davidovich, 2006). Hence, an optimal force is an extrinsic robotlike stimulus, with the aim of restoring the equilibrium of periodontal supporting tissue remodelling via cellular response. It should lead to a maximum rate of tooth movement, while ensuring minimal irreversible root, PDL and alveolar consonant bone damage. Also, this force should produce a maximum rate of tooth movement, whilst ensuring patient comfort (Proffit, Fields, Sarver, 2013 Ren at al., 2003).Teeth react differently, depending on whether the force is continuous or intermittent. Studies by Oates, Moore, and Caputo (1978) showed tooth movement exposed to low level o f intermittent tooth forces were equal to that of continuous forces. But at higher force levels, intermittent forces produce greater tooth movement within a shorter period of time. However, results from study conducted by Owman-Moll, Kurol, and Lundgren (1995) showed continuous forces (4.3mm +/- 1.5mm) were more effective than intermittent forces (2.9 +/- 0.6mm) in achieving tooth movement. Furthermore, the study also showed no substantial root resorption differences between the two forces in the end. Proffit et al. (2013) cerebrate that effective tooth movement occurs with longer and continuous forces between 4 8 hours. They also believe that light continuous forces produce the best tooth movement and these forces should be light enough to ensure only frontal resorption. However, heavy continuous forces should be avoided cod to tissue damage but heavy intermittent force is clinically acceptable although it is less efficient.Study conducted by Hixon et al. (1970) showed the role of individual variation affecting tooth movement, with some individuals displaying increased movement than others. These individual variations are in regard with different root celestial orbits, metabolic responses and facial growth. The variations resulted in altered time and rate of tooth movement between individuals. Additionally, older patients with lower metabolism and increased facial growth showed less movement, in comparison to a younger patient. The variation is also attributed to differences in tissue characteristics. The younger patients have many celled periodontal membrane uncalcified osteoid bone crest lining and loose fibrous marrow space tissue, nub that they reach the proliferation stage of tissue changes earlier than older adults. This will result in tooth movement (initial phase) starting earlier in younger people (Reitan, 1957). Additionally, Pilon, Kuijpers-Jagtman, and Maltha (1996), stated that individual differences in bone density, metabolism and PDL turno ver can also be responsible for the variations. Each individual has his/her optimum pressure for tooth movement and that in slow movers the optimum forces were not applied.Hixon et al. (1970), though his study demonstrated different teeth having different optimal rates and force for tooth movement. The results far-famed an increased canine movement, in comparison to molars. This is out-of-pocket to the root surface area of the canine being lesserthan molar, with the forces being distributed over a large area rather than being concentrated (in the case with canines). Moreover, Proffit et al. (2013) also support this theory through their table, which shows a smaller force for anterior teeth and a larger force for posteriors. Additionally, Smith and Storey (1952) stated the optimum range for the maximum rate of movement is 150-200cN for canines with later studies by Lee (1964) increasing the range to 260cN. through and through their studies, Lundgren, Ownman-Moll, and Kurol (1996) s tated the ideal rate of horizontal tooth crown movement was 0.8 mm during the first week and 3.7mm after 7 weeks. However, intraoral fix also makes a difference, with maxillary canines having an increased movement in comparison to their mandibular counterparts (Hixon et al., 1970). However, Ren, Maltha, and Vant Hof (2003) stated no differences in movement between the maxillary and mandibular canines. Hence, the implications of intraoral location on tooth movement are still unclear.Proffit et al. (2013) have stated that different types of tooth movement have different optimal forces and these include tipping movement (35-60 gm) translation (70-120 gm) root uprighting (50-100gm) rotation (35-60 gm) extrusion (35-60gm) and intrusion (10-20 gm).Using results from past studies, along with the consideration of the above variables, Quinn, and Yoshikawa (1985) have developed four hypotheses, related to force application and tooth movement. dead reckoning 1 is a constant relationship and Hypothesis 2, is linear relationship between the rate of tooth movement and sample. Hypothesis 3 states that increasing stress increases the rate of tooth movement to a maximum after which the rate declines with spare stress. Lastly, assumption 4 states that tooth movement increases with stress up to a point after which additional stress causes no increase in tooth movement. Quinn and Yoshikawa support hypothesis 4, as it supported by extensive experimental and clinical data. This hypothesis is also supported by Hixon et al., with his results showing a lack of tooth movement after a certain force application. But Ren, Maltha, and Vant Hof (2003), challenged this model due to a lock of available data with high forces, and created a new mathematical model, where shows no tooth movement with no force, but as the force increases, the movement also increases until a certain force, after which the movement stays constant or slightly decreases but will never become negative. This is in contrast to hypothesis 4, which stated the movement as being constant but never decreasing.From the above essay, we can see that there is still a lack of defined answer for an ideal force and rate of tooth movement, and this can attributed to four main reasons. The first reason is due to a lack of ability to calculate stress and strain at the periodontal ligament. Most studies discussed above, were based on the application of the force to the tooth, but not the forces leading to biological reactions. The second reason is due to the lack of tooth movement control, with most studies involving tooth tipping which causes uneven stress distribution in periodontal ligament. Moreover, measurements are made at the crown, and not at the stress areas, resulting in force overestimation. Additionally, many of the studies were conducted during a short period of time, making the data relevant only for the first two phases of tooth movement. Lastly, variation both among and within individuals, ma kes it tricky to calculate optimal force and rate, as each individual has his/her individualised optimal values (Ren, Maltha, Kuijpers-Jagtman, 2003).In conclusion, we can see that more studies need to be conducted to determine the ideal rate and force of orthodontic tooth movement. Tooth movement is affected by factors such as force magnitude individual and tooth variation intermittent or continuous forces and different types of tooth movement. Additionally, Quinn and Yoshikawa believed that tooth movement increases with stress up to a point after which additional increases create no movement. But this was challenged by Maltha, who stated that the movement can also decrease. The above factors, in addition to the four main reasons discussed above show that there is no ideal rate and force of orthodontic tooth movement.REFERENCESAndreasen, G., Johnson, P. (1967). 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