Friday, August 21, 2020

Dalcroze

Jaques-Dalcroze Emile Jaques-Dalcroze (July 6, 1865 †July 1, 1950), was a Swiss author, artist and music teacher who created eurhythmics, a technique for learning and encountering music through development. Essential PRINCIPLES Inherent in his strategy are these fundamental standards &endash; facts he accepted to be ubiquitous. These six standards are: †¢The start of music happens when human feelings are converted into melodic movement; †¢We experience feelings genuinely; Through our impressions of different solid constrictions and discharges in our bodies, we sense feeling; †¢The body communicates inward feelings by externalizing influence through developments, stances, motions, and sounds. A portion of these are programmed, some unconstrained, and others the consequences of thought and will; †¢Internal feelings are converted into music through movements, for example, breathing, singing or playing an instrument; †¢The first instrument that must be p repared in music is the human body. THE JAQUES-DALCROZE METHOD Choksy (1986) characterizes Eurhythmics as follows: â€Å"Eurhythmics . . is . . . in view of the reason that beat is the essential component of music, and that the hotspot for all musicality might be found in the characteristic rhythms of the body. † Eurhythmics coordinates three methodologies: †¢ Solfege (the investigation of hypothesis, amicability, and scales); http://www. youtube. com/watch? v=9qK6seVVBQ0 †¢ Improvisation (the advancement of a brought together inside ear and body); †¢ Rhythmics (the investigation of inward and external impacts of mood according to the over two components). Further, Jaques-Dalcroze built up an equation for the creation of Eurhythmia:Space + Time + Energy + Weight + Balance + Plasticity = Eurhythmia? Gravity The best music happens when the entirety of the above are adjusted. The Jaques-Dalcroze strategy apparently rethinks the essential components of music to fit inside logical definitions. All things are comprised of issue. Matter is involved vitality. Matter courses through space; vitality moves through space. Matter (vitality) moving through space is called movement. Movement shows up in music as beats. Those beats discharge their vitality in different ways.The beat hence is reliant upon the degree of vitality applied and the thickness of the space applied. Beats have a predefined term, or time esteem. The nature of the time is needy upon how the beat is struck, supported and discharged. Jaques-Dalcroze found that his understudies related dynamic (vitality) changed with rhythm (time) transforms, I. e. , gentler implied more slow moreover. This anyway isn't the situation. One objective of the strategy is to pick up freedom of time and vitality as identified with change so understudies could to be sure play a melodic determination milder without getting slower.Beats have weight. Science characterizes weight as a body's fascination in the e arth (which is identified with gravity). At the point when one watches a decent conductor before a troupe, one can detect weight in his every stroke and example. Weight can likewise be seen in a line of music. A performance line would have less weight than that of an eight section chorale. In like manner, the expansion of low-sounding instruments in an arrangement gives a more noteworthy feeling of weight. Note length can likewise de characteristic of weight (in appearance). Equalization can be accomplished just when weight is kept in control.Balance is an imperative component of mood. (Caldwell,1995) a definitive objective of the Jaques-Dalcroze strategy is to accomplish a harmony between all the components that contain the beat; space, vitality, versatility, and weight. It is difficult to isolate the components, along these lines the strategy centers around singular components of the beat. Jaques-Dalcroze characterizes versatility as the nature of the development between the pitch es. This is the thing that makes the exhibition alive and dynamic and is generally mindful what the crowd sees and hears.I consider versatility that signal, articulation or picture that the entertainer passes on alongside different components of the beat. As referenced before a definitive objective of the Jaques-Dalcroze technique is extemporization: the formation of unique sound. As indicated by Jaques-Dalcroze strategy, act of spontaneity consolidates the accompanying: †¢ Use of all resources †¢ Exploration of development with our bodies; †¢ Imagination and innovativeness; †¢ Consciousness of existence around us; †¢ Flexibility and spryness; †¢ Motor coordination; †¢ Expression through utilization of the body and sound; Careful and basic tuning in; †¢ Concentration and mindfulness; and †¢ Flexibility. The investigation of the Jaques-Dalcroze strategy requires the most extreme in consideration, focus, memory, and capacity to recreate. It is a taught investigation. The job of the teacher hence becomes one who centers the vitality natural in understudies and moves that vitality into the creation of eurhythmia. THE CLASSROOM SETTING In my encounters it is obvious that it is hard to prepare anybody viably in the Jaques-Dalcroze technique except if it was started at an early age.Dalcroze himself prescribed â€Å"to carry youngsters to workmanship at an age when they have not yet been intellectualized into investigating before watching, and communicating before encountering. † (Dalcroze,1922) to put it plainly, the technique would need to be instructed during the period of honesty. The hypothesis would likewise must be continually fortified all through life, even in school. The technique has clear legitimacy in the primary school, since it includes development. Youngsters learn best while moving, feeling, contacting, detecting, and seeing things close within reach. The Jaques-Dalcroze strategy accomplishes only th at. http://www. youtube. com/watch? v=n5DdjXZkPfg

Tuesday, May 26, 2020

Lies Youve Been Told About Pork Consumption Essay Topics

Lies You've Been Told About Pork Consumption Essay Topics For instance, a feeder pig producer is assessed while the pig is sold for the very first time. But since the maps below illustrate for an assortment of countries and regions around the Earth, consumption won't change equally across all kinds of livestock. The moral value is a universal price, which can be seen in all species and it's the exact same in all species. Look out for misleading labels. What You Don't Know About Pork Consumption Essay Topics Continuing on to answering the popular question for what country eats the most pork per person, we referred to the site that is about pork and contains all of the info you would ever have to know about this sort of meat. If you believe you can just elect for a greater quality pork product, think again. As a consequence, in any circumstance it's beneficial for all of us to cut back meat. He emphasizes that everybody should cut back on the quantity of meat and meat produc ts they eat. The Pain of Pork Consumption Essay Topics Consequently, meat is critical to human's everyday life and wellness. Being a real carnivore isn't a terrible thing. Meat Consumption is just one of the oldest habits of human life. Choosing Good Pork Consumption Essay Topics Hence, they have lower chance of coronary disease. We don't know someone doesn't mean we should hurt that person, and the exact same applies to animals. However, once we look deeply on how dogs identify various kinds of drugs, it's because they are being taught by human. In this manner, we cannot support the argument that we don't eat dogs since they are useful, it's human who makes them useful, and we can also give pigs with skills so they can have higher instrumental price. I certainly wouldn't need to roll the dice and discover out. The Debate Over Pork Consumption Essay Topics What you decide to eat is all up to you. To be able to eat better, you want to get informed about food according to them. Using Pork Consumption Essay Topics If they aren't trained, their strengths couldn't be expressed. All these factors are another means to die younger. Needless to say, the worldwide domination of pork could possibly be coming to an end because of the expanding popularity of chicken. Take Extinction off Your Plate is a sort of limited movement. Sources are embedded within this informative article together with below. Animal farming is the chief supply of carbon dioxide. Meat eaters don't need to take part in this emission process since there are small, local farms out there. Any farm cannot alter the impact of farm animals. Globally, pork is projected to find a little decline in the next several years. It requires 60 pounds of water to produce a single pound of potatoes. On the flip side, it takes more than 20,000 lbs of water to create a pound of beef. Pork Consumption Essay Topics: the Ultimate Convenience! The majority of the folks accept Monday as a cha nce for a fresh beginning to a new week. These days, they pay more attention on choosing what we eat. In completion the meat business is a vital portion of life. A whole lot of individuals argue that it's only healthy to have one meat free day per week. How to Get Started with Pork Consumption Essay Topics? Take Extinction off Your Plate intends to conserve the wildlife by helping decrease the total amount of meat consumption throughout the country. It is thought to be the most essential reason behind the Global Warming. Deforestation has turned into a major issue once it concerns the environment. Poultry is and will continue being the dominant kind of livestock on Earth. Outbreaks can happen year-round. Some can even be used for purposes apart from human consumption. Although this pork is obviously likely to be much better that you consume, it can be challenging to discover, and still poses certain health concerns. Today, meat consumption has grown an uncontrollable i ssue. It also increases the risk of diabetes. 5 million in wages and advantages. Vegetarians rely on soybeans for the protein required to keep up a healthy balance within the body. Meat is necessary to the well-being of the body. It is an important source of zinc and iron. The Key to Successful Pork Consumption Essay Topics The info in our articles is NOT meant to replace a one-on-one relationship with a skilled health care professional and isn't intended as medical advice. There are lots of studies about the connection between diet and Cancer. Access to the newest technologies and information is frequently the secret to a producer's capacity to be competitive. A number of these parasites are tough to kill even when cooking. It will be a lot easier for willing folks to be a weekday vegetarian first, which can be followed by an entire vegetarianism.

Friday, May 15, 2020

The Cuban Missile Crisis The World On The Edge Of Its Seat

â€Å"We’re eyeball to eyeball, and I think the other fellow just blinked† (Dean Rusk). The Cuban Missile Crisis put the world on the edge of its seat, and was the closest humanity has ever gotten to full-scale nuclear war. Even though the event lasted a mere two weeks (from October 14-24, 1962), it played a significant role in international politics, and its effects can still be seen today. The Cuban Missile Crisis is significant to current international relations because it proved the importance of the need for information, and the importance of taking risks. The history of the Cuban Missile Crisis is traced from both post-World War II negotiations and the Cuban Revolution. After the end of World War II, the Yalta Conference marked a turning†¦show more content†¦embargo on Cuba. This decision was treacherous considering at that time, Castro’s propaganda seemed to display communist beliefs (â€Å"What Triggered the Cuban Missile Crisis?†). As a r esult of the embargo, Castro sought the aid of the Soviet Union to help their economic position (â€Å"What Triggered the Cuban Missile Crisis?†). Had the United States been more willing to discuss a compromise between Cuba and the U.S., the crisis may have never even occurred. Much of the information that is available today about the Cuban Missile Crisis was not available to the people who needed it the most. One of the most devastating issues during the crisis was obtaining the proper information in order for each leader to make apt decisions. On October 14, an American U2 spy plane photographed military bases in Cuba, which, after close examination, proved the existence of nuclear warheads (Schroeder, â€Å"Cuban Missile Crisis†). However, these photographs lacked in providing the capability and range of the warheads. More intelligence revealed that there were three different types of nuclear missiles based in Cuba, ones that could reach a maximum distance of 630 na utical miles, 1020 nautical miles, and even 2200 nautical miles (â€Å"USSR Missile Ranges†). With such long distance missiles, the Soviets could hit nearly every city in the continental U.S.A. (â€Å"USSR Missile Ranges†). Despite having full knowledge of their missiles’ capabilities and locations,

Wednesday, May 6, 2020

Pediatric Nursing - 1531 Words

Pediatric Nursing A pediatric nurse must offer the proper maintenance care to a child. Depending on the specific pediatrics office or environment that they work, most accurately define the roles that they are to assume. In pediatrics nursing, the nurse is responsible for the developmental screenings. Part of this aspect includes measuring the height, weight, and other preliminary measures that mark a child’s growth and development. Nurses in pediatrics are often responsible for collecting laboratory samples. A pediatric nurse will also perform further routine tests and screenings such as checking a child’s temperature, heart rate, blood pressure levels, and respiratory rates. He or she may be responsible for conducting the more basic†¦show more content†¦All fees are subject to change You have to be licensed in the state of Indiana in order to work. ALL APPLICANTS must mail a completed application along with the items listed below to the Indiana Professional Licensing Agency. If you have ever held a license as a nurse previously in Indiana, and are applying again for the same profession, please contact our office at (317) 234-2043 or by e-mail at pla2@pla.in.gov to inquire about reactivating your previous license. Please type or print neatly with black or blue ink. A.Include a photograph, approximately 2  ½ x 3  ½ inches, head and shoulders view, black and white or color, of professional quality. Polaroid type or laminatedShow MoreRelatedThe Pediatric Scope Of Nursing Essay1843 Words   |  8 PagesNursing in Pediatrics There are many aspects and branches of study when it comes to health care. You have certain body system; Cardiovascular, Urinary, Nervous, etc. Areas of practice can be broken up into Oncology, Neurology, Nephrology, etc. Furthermore, it can be broken up in Pediatrics and Geriatrics. This paper will cover topics regarding the Pediatric scope of practice; beginning with Pediatric training in nursing school. Followed by healthcare staff to patient relations, pain management inRead MoreThe Reflection Of Pediatric Nursing1507 Words   |  7 PagesPediatric Urgent Care Nursing Nursing care is studied throughout the world. The study Caring in Pediatric Emergency Nursing was performed by Gordon Gillesipe, Melanie Hounchell, Jeanne Pettinichi, Jennifer Mattei, and Lindsey Rose in order to see what patients and their families valued most and least when it came to nursing care(Gillesipe, Hounchell, Pettinichi, Mattei, Rose 2012). The researchers used the quantitative approach to study 300 participants (Gillesipe et al. 2012). Some questionsRead MoreThe Ethical Dilemma Of Pediatric Nursing1204 Words   |  5 PagesIn pediatric care, nurses are regularly faced with situations where they must make ethical decisions that impact them and their patients. An ethical dilemma occurs when the options for a solution present both favorable and unfavorable outcomes (Burkhardt Nathanial, 2008). In pediatric nursing, ethical dilemmas arise when there are conflicting views on how course of treatment should be perused. If a patient’s wishes conflict with others, nu rses help resolve the conflict (American Nurses AssociationRead MoreCareer Research Paper : Pediatric Nursing2292 Words   |  10 PagesLiterature 27 April 2015 Career Research Paper Pediatric nursing is an important profession to us today. They devote their knowledge and skills to caring for children from infancy through the late teen years. Pediatric nursing does not just give you the opportunity to work with children, but with their families as well. I was inspired to become a pediatric nurse when I was younger. I remember when my little sister had to go to Kids First Pediatric to get a flu shot, my sister was so terrified ofRead MorePediatric Nursing : A Pediatric Nurse Is Someone Who Works With Many Patients Of All Ages1425 Words   |  6 PagesPediatric Nurse A pediatric nurse is someone who works with many patients of all ages. Many of these patients are suffering from numerous conditions. Pediatric nurses have many task and they must be done quickly and correctly. Pediatric nursing did not develop as a specialty in the United States until the nineteenth century (â€Å"The History of Pediatric Nursing†). Before the development took place many children did not have the proper healthcare. If you were wealthy you were able to travel for the appropriateRead MoreA Research Report On Pediatric Nursing1245 Words   |  5 PagesUnknowingly Pounding your pediatric healthcare professional for answers in relation to your illness? Demanding a solution to cure you? Put your irritation to rest and get educated on antibiotic resistance. Approximately fifty years ago antibiotics became readily available to society. Education has lacked vital information throughout these fifty years and continues to show today. Patient demands sway doctors to take the easy route by suiting demands. Pediatric Nursing uses a report by the CDC fromRead MorePediatric Nursing And Palliative Care1649 Words   |  7 PagesThe words pediatric and palliative care when put together are rather difficult to stomach. The image of a sprouting new life when juxtaposed with concerns for end-of-life care is almost ironically antithetical. It is easy to see why pediatric palliative care is an emerging subspecialty with much left to fully develop. Although highly uncomfortable for most to talk about, pediatric palliative care is a real and intricate necessi ty for many families with children facing a life-threatening illnessRead MoreThe Ethical Dilemmas Of The Pediatric Field Of Nursing1316 Words   |  6 PagesNurses working in the pediatric field of nursing are faced with a wide variety of ethical dilemmas. There are many ethical dilemmas that can arise in the work field. Many individuals are having a tough time deciding to vaccinate their children; this in turn can leave society with a huge dilemma ethically. I am choosing to write about not vaccinating your child and why I feel this can be an ethical dilemma. Society today is faced with so many preventable illnesses that can simply be resolved byRead MoreEssay about Ebt1 Task 2 Wgu1378 Words   |  6 PagesResearch Integration EBT1 Task 2 Types of Sources of Evidence/Appropriateness/Classifications The article from the American Academy of Pediatrics (AAP) and American Academy of Family Physicians (AAFP) that addresses acute otitis media (AOM) is a filtered resource. This article is appropriate for use in nursing practice as it establishes diagnosis and management guidelines for the treatment of AOM. In addition the article recommends treatment options for the symptoms of AOM and addressesRead MoreManagement of Acute Otitis Media Essay1319 Words   |  6 Pagesof Source General information, filtered, or unfiltered Appropriate or inappropriate Type of Research Primary research evidence, evidence summary, evidence-based guideline, or none of these (AAP/AAFP, 2004) American Academy of Pediatrics and American Academy of Family Physicians. Clinical Practice Guideline: Diagnosis and Management of Acute Oitis Media Filtered Yes: Clinical practice guideline, with an evidence report, from a comprehensive review of evidence based literature on

Tuesday, May 5, 2020

Business Research Buying Behavior of the Consumer

Question: Describe about the Business Research for Buying Behavior of the Consumer. Answer: Project Proposal Working Title Social marketing, influencing the buying behavior of the consumer; a case study of Samsung. Project Description Aims and Objectives Aim: The aim of the project is to find out the influence of social marketing on global buying behavior. Objectives: To find out whether social marketing help Samsung to influence the behavior of its consumer. To find out the impact social marketing has on the people; and whether the impact proves to provide a positive change in the society. To investigate whether social marketing helps, the organization in gaining a human image. Background to the Research Social marketing could be defined as an approach that helps in developing those activities that could aim at changing as well as the maintaining the behavior of the people in the society. Social marketing maintains the behavior of the people for the benefits of both the individual and the community as a whole . Several researches or studies have been conducted on the theory of social marketing. Among all the studies that had been, conducted most of the studies refer to the exchange theory with the social marketing theory. The other studies that have conducted lately, although negate this fact; and prove that the exchange theory has no place in the social marketing theory (Dibb Carrigan, 2013). The Health Belief Model or the HBM is the most accepted method that is been used in the social marketing theory. Mostly in the empirical studies, the HBM theoretical model is used (Luca Suggs, 2013). The social marketers use the behavior change theory while defining the social market theory. Complex processes like behavior change, are often used to meet the social marketing objectives. One should not think that social marketing is an alternative to individual behavior but rather it helps in increasing the prevalence of the consumer behavior, especially with respect to the target audience. Brief Introduction of the Literature in Area The importance of social media is growing in the recent era because the companies believe that with the help of social media the companies could draw huge amount of traffic towards them (Turner, 2013). Social market economy encourages the free market capitalism and at the same time, it supports the welfare of the state. Social marketing on the other hand integrate the marketing concept in such a way that it influences the behavior of both the individual and the community for serving the purpose of greater social good. Therefore, companies like Samsung use social marketing tool to connect with their potential customers by promoting their products and their Corporate Social Activities (Burchell, Rettie Patel, 2013). The human images of the corporations are important for the companies like Samsung, because the human image helps the company to build their credibility among the other members of the society (Hastings Domegan, 2013). The members of the society are the potential customer of the company; therefore, Samsung has used social media marketing to influence the individual and the community. The company influence the individual not because they want to sell their products but at the same time, they use social marketing as a tool so that the people become the helpful member of the community (Baker Saren, 2016).. The social media marketers not only use Facebook as a platform, to connect with the community but there are several other platforms like the Twitter and the Search Engines, which could be used as medium to connect with the customers or the consumers around the world. The Significance of the Research The social market theory as well as social marketing as tool, have immense significance in the global market since the global buying behavior of the organization, affects the organization. The profit maximization strategies are depending on the global buying behavior, therefore, social market theory has its influence since the theory could be used influence the individual and the community. The global significance: The future marketers before coming up with a marketing strategy could take the help of the research. The social market and the social marketing theory discussed here will be effective for coming up with a marketing program plan. Theoretical Significance: Numerous researches have been conducted on the social market and the social marketing theory. The researches have helped the marketers to know their target audience, which is in return helpful for the organization. It has turned out to be successful in influencing and evaluating the behavioral change of the community or the individual. Research Question The following research proposal put forward the following research questions: RQ 1: How social marketing has been used by Samsung to influence the behavior of the consumer? RQ 2: Does social marketing influence people to contribute to the society? RQ 3: How effective is social marketing in providing a human image to the organization? Gantt chart and Mile Stone Gantt chart The following table will show the required time, to complete the whole research: Task Start Date End Date Duration Research Proposal 31/07/2016 5/08/2016 6 days Literature Review 5/08/2016 5/09/2016 30 days Data Collection 5/09/2016 5/11/2016 92 days Data Analysis 5/11/2016 5/12/2016 30 days Final Report Submission 5/12/2016 31/12/2016 26 days (Figure 1: The Gantt chart of the Research Source: Created by the Author) Milestone Achievements Year CDP Korea Excellence Award 2009, October CES Eco-Design Award 2009, January (Figure 2: The Milestone Achieved by Samsung Source: "SAMSUNG", 2016) Team Charter Purpose Identifying the use of the social market theory by organizations such Samsung to influence the behavior of the consumer, this will affect the profit maximization of the company and would contribute to the community. Time and Duration 6 Months Scope Influence of the social network on the community and the individual. Expect End Result Samsung has used social market theory to influence both the behavior of the people in the community so that the people contribute to the community. It would in return provide the organization with human image. Supporting Resources Press release, website resources and the blogs Deliverable Obtaining information from reliable sources, (Figure 3: The Team Charter Source: Created by the Author) References Baker, M. J., Saren, M. (Eds.). (2016). Marketing theory: a student text. Sage. Burchell, K., Rettie, R., Patel, K. (2013). Marketing social norms: social marketing and the social norm approach. Journal of Consumer Behaviour, 12(1), 1-9. Dibb, S., Carrigan, M. (2013). Social marketing transformed: Kotler, Polonsky and Hastings reflect on social marketing in a period of social change. European Journal of Marketing, 47(9), 1376-1398. Hastings, G., Domegan, C. (2013). Social marketing: From tunes to symphonies. Routledge. Luca, N. R., Suggs, L. S. (2013). Theory and model use in social marketing health interventions. Journal of health communication, 18(1), 20-40. Samsung. (2016). Samsung. Retrieved 28 July 2016, from Slater, D., Tonkiss, F. (2013). Market society: markets and modern social theory. John Wiley Sons. Turner, H. (2013). Global Digital Social Media Strategy at Samsung Mobile. Intelligent Head Quarters. Retrieved 28 July 2016

Tuesday, April 14, 2020

Materials for Artificial Hip Joints

Table of Contents Hip Anatomy Artificial Joint Hip Replacement Materials Selection Current Trends Conclusion Bibliography Footnotes Hip Anatomy The hip anatomy refers to the structures which make up the hip. â€Å"The hip contains various parts. These include bones and joints, which are our major concern, ligaments, tendons, muscles, nerves, the bursae, and blood vessels, which shall be discussed in this section.†1Advertising We will write a custom essay sample on Materials for Artificial Hip Joints’ specifically for you for only $16.05 $11/page Learn More The hip is an example of a ball and socket joint. The most notable structures in a hip are the bones and joints. The bones are made up of the femur and the pelvis. â€Å"The head of the femur interlocks the acetabulum that is located besides the pelvis†.2 However, wear and tear might occur around the joints, causing chronic pains. This wear and tear might be as a result of acc idents, and or due to excessive walking, leading to a condition known as osteoarthritis.3 This involves replacing the damaged cartilage and bone of the hip joint with artificial ones. This kind of a process is carried out in two different ways: the cemented prosthesis and the uncemented prosthesis. The uncemented prosthesis is whereby the implants are made with special coatings which allow the bone to grow on to the implant. This is crucial since it aids in the integration of the implant into the body.4 This is actually achieved through designing implants which are porous. On the contrary, cemented prosthesis involves the use cement to attach the implant to the bone. The merits of carrying out an artificial joint hip replacement are: helping in movement of the person, doing away with the chronic pain at the joints and also to reduce the tear and wear at the joint. However, a good thing has never lacked shortcomings. The hip is bound to undergo some dislocations, which are caused by the fact that implants are always smaller than the original joint, something which makes the ball to come out of the socket (BoneSmart). It might also lead to blood clots, a condition known as thrombophlebitis and also the patient might fall victim of some infections.5Advertising Looking for essay on health medicine? Let's see if we can help you! Get your first paper with 15% OFF Learn More Artificial Joint Hip Replacement In the past, traditional materials were being used to replace worn out hip joints. However, these prosthetics were subjected to a lot of wear and tear and were therefore not effective. This necessitated the development of modern materials, which would be more wear resistant and last longer. The implant materials to be used ought to have certain mechanical properties in order to be effective. They are supposed to be wear and tear resistant, hard, strong, with good corrosion resistance and considerable levels of stiffness. Very high stiffness in mater ials can result in weight shielding, which cause eventual fracture of the implants. Other factors such as biocompatibility and degradation of the biomaterials also play a key role in influencing their performance. In view of these properties, metals, ceramics, and polymers are the most used materials in the making of implants for artificial hip joints. The table shows below some of the mechanical properties of the most frequent used materials in this modern world. Metals have good fracture resistance and are stong enough to be used in making of hip joints. However, they have very high stiffness, which, as indicated earlier on, leads to weight shielding. â€Å"Steel is an alloy of iron, nickel,chromium and molybdenum†.6 An implant made from it lasts much longer since it is highly resistant to corrosion. This means that it does not degrade in the body easily. Steel has relatively high stiffness levels and it can be shaped easily, meaning reduced cost of production. On the other hand, nickel, which is contained in steel, might be of a problem to some people who are allergic to it.The other metal which is used to make implants in place of steel is the Freeman cobalt-chromium. This is an alloy composed of cobalt, molybdenum and chromium(27-30% Cr, 5-7% Mo, rest Co). â€Å"The freeman cobalt-chromium is used by patients who are allergic to nickel since it does not contain the latter†.7 Materials Selection Titanium implant is yet another metal which is used in making artificial hip joints. â€Å"A titanium implant has a stiffness of less than half that of stainless steel or cobalt chrome, which therefore reduces the effects of weight shielding. Its constituents give it excellent corrosion resistance, but it does suffer from relatively low fracture toughness and poor wear properties†¦Ã¢â‚¬ 2.Advertising We will write a custom essay sample on Materials for Artificial Hip Joints’ specifically for you for only $16.05 $11/page Learn More Titanium is special since it permits the use of finely polished wear resistant metal heads, which boosts its wear resistance. Polymethylmethacylate (PMMA) is one of the polymers which are most frequently used as grouting material. Its main limitation is that when used, there is always some release of heat to the neighboring bone, causing cell death. Cement might also cower, leading to toxic monomers being emancipated into the bloodstream. Zirconia (zirconium oxide) ceramic has found continued use in making of Zirconium Ceramic Femoral Head. â€Å"It is highly valued due to its mean surface roughness, being very hard and highly resistant to scratching and wear†.8 â€Å"Hydroxyapatite is made up of calcium phosphate, which makes it biocompatible. For this reason, it is, in absence of bone cement, used to coat implants†.9 Current Trends In the current times, the most favored type of implants hybrid ones. This is whereby different type of materials is combined in order to achieve the desired mechanical properties. This goes a long way in assuring the longevity of the implant. Some of these hybrid implants are discussed below. Metal ball (made up of cobalt chrome molybdenum) and Polyethylene liners have gained popularity over the years among the surgeons due to its good performance and durability. Polyethylene is capable of achieving stability in the body while the surgical operation is still underway and it’s also less expensive. The wear rate which is 0.1millimeters each year is a bit low and therefore it’s a better implant.10 Ceramic ball and polyethylene liner is another implant which is widely used. The wear rate is about 0.05 millimeters per year. The other hybrid implant is the metal ball and metal liner. They have very much reduced wear rate and the amount of bone lose is minimal. Of all the implants, these offer the largest ball heads, which means greater stability and therefore the risk of dislocation is highly reduced. Some of the feared aspects are that the metal’s soluble ions might dissolve into the body, being accompanied by some harmful effects. Ceramic ball and ceramic liner implants are the hardest and lowest in terms of wear rate (about 0.0001millimeters per year) but are more expensive than the other implants.11Advertising Looking for essay on health medicine? Let's see if we can help you! Get your first paper with 15% OFF Learn More Conclusion In conclusion, various materials can be used in making artificial hip joints and this majorly rely on the biocompatibility of the material, its mechanical properties, and its level of degradation while in the body. Bibliography Cluett, J, Hip Replacment Implant Options, 2008, retrieved http://orthopedics.about.com/od/hipkneereplacement/a/implants.htm. Drijber, FLIP JB Finlay, Proc Instn Mech. Engrs—Part H: J Eng Med, vol. 204, no.H4, 1990, pp. 253- 258. Malik, H, Advanced Hip Replacement, 2010, retrieved http://www.hammadmalik.co.uk/1/HipReplacement.aspx. Orthogate, Hip Patient Education, Artificial Hip Dislocation Precautions, 2000-2007, retrieved http://www.orthogate.org/patient-education/hip/. Queen Mary, Department of Materials: Materials Selection for Total Hip Replacement, 2010, retrieved http://www.materials.qmul.ac.uk/casestud/implants/. ScienceDaily, ‘Cementless Hip Implants Are Durable For At Least 20 Years,’ Number of stories in archive s, vol. 93, May 3, 2009, p. 728, retrieved http://www.sciencedaily.com/releases/2009/05/090501154133.htm. Turner, I, Why Study Materials?, UK Centre for Materials Education, 2008-2010, retrieved http://www.whystudymaterials.ac.uk/casestudies/hip-replacement.asp. William, DC, Materials Science and Engineering: an introduction Wiley, 3rd edn, John Wiley sons, New York, 2008. Footnotes 1 Orthogate, Hip Patient Education, Artificial Hip Dislocation Precautions, 2000-2007, retrieved http://www.orthogate.org/patient-education/hip/,p.1. 2 Ibid, p.1. 3 H Malik, Advanced Hip Replacement, 2010, retrieved http://www.hammadmalik.co.uk/1/HipReplacement.aspx, p.1. 4 Ibid, p.1. 5 FLIP Drijber JB Finlay, Proc Instn Mech. Engrs—Part H: J Eng Med, vol. 204, no.H4, 1990, pp. 253- 258. 6 DC William, Materials Science and Engineering: an introduction Wiley, 3rd edn, John Wiley sons, New York, 2008, p.728. 7 Ibid, p.278. 8 I Turner, Why Study Materials?, UK Centre for Materials Education, 2 008-2010, retrieved http://www.whystudymaterials.ac.uk/casestudies/hip-replacement.asp,p.1. 9 ScienceDaily, ‘Cementless Hip Implants Are Durable For At Least 20 Years,’ Number of stories in archives, vol. 93, May 3, 2009, p. 728, retrieved http://www.sciencedaily.com/releases/2009/05/090501154133.htm,p.728. 10 Queen Mary, Department of Materials: Materials Selection for Total Hip Replacement, 2010, retrieved http://www.materials.qmul.ac.uk/casestud/implants/,p.1. 11 J Cluett, Hip Replacment Implant Options, 2008, retrieved http://orthopedics.about.com/od/hipkneereplacement/a/implants.htm, p.1. This essay on Materials for Artificial Hip Joints’ was written and submitted by user Jordan Rivers to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Wednesday, March 11, 2020

History of the Integrated Circuit (Microchip)

History of the Integrated Circuit (Microchip) It seems that the integrated circuit was destined to be invented. Two separate inventors, unaware of each others activities, invented almost identical integrated circuits or ICs at nearly the same time. Jack Kilby, an engineer with a background in ceramic-based silk screen circuit boards and transistor-based hearing aids, started working for  Texas Instruments  in 1958. A year earlier, research engineer  Robert Noyce  had co-founded the Fairchild Semiconductor Corporation. From 1958 to 1959, both electrical engineers were working on an answer to the same dilemma: how to make more of less. What we didnt realize then was that the integrated circuit would reduce the cost of electronic functions by a factor of a million to one, nothing had ever done that for anything before - Jack Kilby Why the Integrated Circuit Was Needed In designing a complex electronic machine like a computer it was always necessary to increase the number of components involved in order to make technical advances. The monolithic (formed from a single crystal) integrated circuit placed the previously separated transistors, resistors, capacitors and all the connecting wiring onto a single crystal (or chip) made of semiconductor material. Kilby used germanium and Noyce used silicon for the semiconductor material. Patents for the Integrated Circuit In 1959 both parties applied for patents. Jack Kilby and Texas Instruments received U.S. patent #3,138,743 for miniaturized electronic circuits. Robert Noyce and the Fairchild Semiconductor Corporation received U.S. patent #2,981,877 for a silicon-based integrated circuit. The two companies wisely decided to cross-license their technologies after several years of legal battles, creating a global market now worth about $1 trillion a year. Commercial Release In 1961 the first commercially available integrated circuits came from the Fairchild Semiconductor Corporation. All computers then started to be made using chips instead of the individual transistors and their accompanying parts. Texas Instruments first used the chips in Air Force computers and the Minuteman Missile in 1962. They later used the chips to produce the first electronic portable calculators. The original IC had only one transistor, three resistors, and one capacitor and was the size of an adults pinkie finger. Today an IC smaller than a penny can hold 125 million transistors. Jack Kilby holds patents on over sixty inventions and is also well known as the inventor of the portable calculator (1967). In 1970 he was awarded the National Medal of Science. Robert Noyce, with sixteen patents to his name, founded Intel, the company responsible for the invention of the microprocessor, in 1968. But for both men, the invention of the integrated circuit stands historically as one of the most important innovations of mankind. Almost all modern products use chip technology.