Explaining Marx essays

Explaining Marx essays In Karl Marx's early writing on "estranged labour" there is a clear and prevailing focus on the plight of the labourer. Marx's writing on estranged labour is and attempt to draw a stark distinction between property owners and workers. In the writing Marx argues that the worker becomes estranged from his labour because he is not the recipient of the product he creates. As a result labour is objectified, that is labour becomes the object of mans existence. As labour is objectified man becomes disillusioned and enslaved. Marx argues that man becomes to be viewed as a commodity worth only the labour he creates and man is further reduced to a subsisting animal void of any capacity of freedom except the will to labour. For Marx this all leads to the emergence of private property, the enemy of the proletariat. In fact Marx's writing on estranged labour is a repudiation of private property- a warning of how private property enslaves the worker. This writing on estranged labour is an obvious point of basis for Marx's Communist Manifesto. The purpose of this paper is to view Marx's concept of alienation (estranged labour) and how it limits freedom. For Marx man's freedom is relinquished or in fact wrested from his true nature once he becomes a labourer. This process is thoroughly explained throughout Estranged Labour. This study will reveal this process and argue it's validity. Appendant to this study on alienation there will be a micro-study which will attempt to ascertain Marx's view of freedom (i.e. positive or negative). The study on alienation in conjunction with the micro-study on Marx's view of freedom will help not only reveal why Marx feels labour limits mans freedom, but it will also identify exactly what kind of freedom is being limited. Karl Marx identifies estranged labour as labour alien to man. Marx explains the condition of estranged labour as the result of man participating in an institution alien to his nature. It is my in...

Cause and Effecf essays

Cause and Effecf essays When a child grows up he wants to live up to his parent's expectations. Sometimes when he fails to meet those expectations he gets discouraged and feels that he has let his parents down. As the child grows he feels that he needs to do the best he can. If he fails to meet the standard he has set, how could his parents be happy with him? Little children will do most things that their parents want them to. Little kids love to help out their parents. As they grow, they in some way want to impress their parents by achieving some great accomplishment, maybe something that could never be reached by someone of his age. They have set their standards so high that it is a big let down to them when they have not reached their goals. Sometimes they may want it so much they work until they get sick or start to drive people away from them. People start expecting a lot from themselves when it seems so simple. When they fail it hurts so much that they will not quit until that goal is met. Sometimes it is best for them to rethink a goal before it becomes too far out of reach that it will not matter if they achieve it or not. Parents sometimes expect a lot from their kids. They may want something for their child that they forget to ask the child if they want it. Then in the process the child doesn't meet what the parent wants and the parent may then tell the child to keep trying. The child may not want what they thought of getting from achieving their goal and may want to quit. The child then becomes angered by his parents' constant interference and starts to set himself apart. Pushing to the breaking point is not exactly helping the child, and sometimes it has a reverse effect. The parents need to see that when the child loses interest in something it is no longer fun for them. Instead, the parents should encourage them to find something that interests them and to strive for a reachable goal. At times it is difficult to know when the goal is u ...

Contemporary issue in Management Essay Example | Topics and Well Written Essays - 2500 words

Contemporary issue in Management - Essay Example bodies and the guidelines given by social watchdogs are only a part of the process that makes corporations recognize their social responsibility since it seems that the bulk of socially responsible actions come from the need to keep a positive public image. Maintaining that image and being socially responsible is a very important contemporary issue in the management of any company. Colvin (2006) reports that companies such as GE, BP, Starbucks, Dell, Pfizer, and Apple may be loved and hated by many people for various reasons but none of these companies can afford to have their brand name or corporate image to be tarnished in any way. In fact, certain companies may use their image to create customer loyalty and brand recognition more than other methods. Others may even go to court in order to save the image of the company (Alleyne, 2005). Undoubtedly, we are living in the information age and even false rumors about a company’s suppliers maltreating their employees in China, or the company’s employees facing racial, sexual or even gender based discrimination can have really negative effects on the bottom line of the company. Even though it could be possible for a company to be respected and appreciated based on just the financial performance (Forbes, 2005), greater appreciation comes when the company displays a healthy level of social responsibilit y along with financial performance (Natural Health, 2005). Social responsibility is not simply a stance taken by the company for exceeding the given ethical responsibility of a company. In fact, it is actually a business opportunity to seek out an image that has remained for a long time exclusively in the domain of NGOs and social organizations i.e. being a ‘green’ company. While this idea sometimes implies being environmentally friendly, the total environment in which a company operates includes a lot more than making sure that the smokestacks of industry do not create more than an manageable level of pollution.

How Does The Civil Rights Act of 1991 Changes the Workplace Research Paper

How Does The Civil Rights Act of 1991 Changes the Workplace - Research Paper Example As noted by the US Congress, other than the unlawful harassments and intentional discriminations as reasons, there was a need to strengthen civil rights laws because the decision of the Supreme Court in Wards Cove Packing Co. v. Antonio, 490 U.S. 642 (1989) weakened the scope and effectiveness of Federal civil rights protection (US Equal Employment Opportunity Commission). To address other challenges in civil rights law, the Civil Rights Act codified the concepts of â€Å"business necessity† and â€Å"job-related† acts that can amount to discrimination (Section 3, Civil Rights Act of 1991). Further, the law confirmed the statutory authority as well as providing guidelines on the adjudication of suits under the Civil Rights Act of 1964. Further, as a response to the Supreme Court decisions that emaciated the civil rights laws, the Civil Rights Act of 1991 expanded the scope of civil rights laws. Almost twenty years after the Civil Rights Act of 1991, it becomes possible to assess how the legislation contributed to the realization of non-discrimination in the workplaces. In this section, we assess employment figures for possible traces of discriminations in the workplace and interpret possible improvements in the workplaces as the achievements of the Civil Rights Act of 1991 even as we are aware that the legislation related to civil rights are not limited to the Civil Rights Act of 1964 and 1991. Table 1 on the earlier page shows that whites in management, professional, and related occupations compose about 33.6% of these occupations. In contrast, Table 2 shows that the whites who are no Hispanics in the US population are roughly 65.1% as of 2010. The data indicate that discriminations based on race are no longer as strong during the time of Martin Luther King, Jr.

Different Degree Levels in Nursing Essay Example for Free

Different Degree Levels in Nursing Essay Nursing is a wonderful, rewarding profession to enter, and it must be chosen for all the right reasons. Today many nurses are faced with a difficult decision to return to college. For those of us who wish to continue to advance our nursing career; we continue to need the educational assistance that is necessary to advance our nursing skills. With nursing there are so many paths one can obtain after achieving your RN. You just need to choose what path is right for you. Basically there are two of the most common degrees to choose from the Associate’s Degree of Nursing (ADN) or Bachelors Degree of Nursing (BSN). Many do not realize the difference between the two. However there are many differences, but both nurses subscribe to the same nursing philosophies. With that being said, the ADN is about a two-year program while the BSN is a four year college or university. Another differences between ADN and BSN, is the ADN is 72 credits and the BSN is 125 credits. Today many nurses are faced with a tough and difficult decision. They are asking themselves what is the right choice for me? Why should I return to school? What are the benefits going to be for me after completing my degree? Truly, when it comes down to it only the nurse can decide and make the necessary decision. The associate degree level of nursing was developed out of a need to produce nurses in response to a shortage during and following World War II (http://nursing. adelphi. edu/about/history. php,n. dHYPERLINK http://nursing. adelphi. edu/about/history. php,n. d. . ). In return many students who choose nursing were leaving only after a few years, thus creating a shortage. The ADN of nursing typically focuses on clinical competencies, fundamentals and technical skill needed to care for the patients. Also, the ADN degree promotes more task-oriented nurses, basic theory and the judgment to function at the entry level. They must also demonstrate the skills necessary in life-saving practice. It generally takes about two years at a community college and the cost for this degree is more manageable. Once the nurse proves their competencies by passing the NCLEX-RN they can obtain a state license. The benefit of having ADN is that the degree itself is a much shorter timeframe and a much less expensive to complete to become a registered nurse. â€Å"In 1965, the American Nurses Association (ANA) designated the baccalaureate degree as the educational entry point into professional nursing practice† (Friberg, page 3). The Bachelor of Science (BSN) in nursing typically takes a person four years to complete at a state college or university. The expense of a four-year degree is costly for some who are trying to be sparing with their college education. The BSN requires the ability to think logically and critically in patient care settings. The curriculum places emphasis on leadership and management in the nursing setting. Also it broadens the knowledge of patho-physiology of diseases, deals more with public issues and refines to a deeper assessment of nursing skills. One of the many benefits of having a BSN allows one to gain more experience and more responsibility. Also, allowing one to further their education in nursing by obtaining a master’s degree, nurse anesthetist, and nurse practitioner. The BSN also allows for a salary increase. It is unreasonable to think that this situation is going away anytime soon. With that being said, looking into the future today most hospitals are trying to achieve Magnet status. â€Å" The nation’s Magnet hospitals, which are recognized for nursing excellence and superior patient outcomes, have moved to require all nurse managers and nurse leaders to hold a baccalaureate or graduate degree in nursing by 2013†(Rossester 2012b). One thought to this is to have nurses obtain the most knowledge possible, and the know how to think in critical situations when they arise. One of my patient care situations that I can recall is when I was working on the telemetry floor in our local hospital. I was with a few other nurses, having their associate degree and two with their bachelor degree. Let’s call the ADN nurse A and the BSN nurse B. So, we were all around the nurse’s station waiting to give report to the next shift and one of the nursing assistants came running down the hall saying, one of the patients in room say 420 is not responding when I try to call her name. Nurse A and Nurse B both went into the room and the patient had no pulse and wasn’t breathing. Nurse B immediately started CPR and took charge in calling a Code. The code team arrived at this time. Nurse B asked if Nurse A could take the patient’s blood sugar and hang some fluids and get the patient on the monitor. Nurse A was also well in keeping the family and the people in the hallway calm and relaxed. The patient in the end was transferred to the ICU where they can better care for the patient in this critical situation and the physician was notified. Nurse B was more knowledgeable and had the necessary leadership skills along with the advanced critical thinking skills that this situation required. Nurse A was competent and did what was expected of the skills she had. In conclusion, I believe that having your ADN degrees is a quick way to gain the necessary knowledge and skills to enter into practice and the cost is less. The BSN allows one to prepare for management and leadership decisions. Also allowing for more critical skills and providing better career opportunities along with higher pay. As I reflect back on my education and skills and the future I recommend all nurses should receive their BSN. References http://nursing. adelphi. edu/about/history. php. (n. d. ) Friberg, Creasia (2011). Conceptual Foundations: The Bridge to Professional Nursing Practice [5] (VitalSource Bookshelf), Retrieved August 14, 2012, from http://pageburstsls. elesevier. com/books/978-0-323-06869-7/id/B9780323068697100029_f0010. Rosseter, R. (2012b, April 2). Fact Sheet: Creating a More Highly Qualified Nursing Workforce. American Association of Colleges of Nursing. Retrieved August 14, 2012, from www. aacn. nche. edu/edia-relations/Nursing Workforce. pdf.

Customs of Amerindians :: essays research papers

Customs Of Amerindians Taino The Taino loved dancing and singing and used the same word for both arieto. They danced and sang to the music of drums, reed pipes and wooden gongs at festivities such as the naming of a baby, the wedding of cacique or the inauguration of a new cacique. Another Taino custom is the flattening of foreheads of newborns. The Taino saw it as a sign of beauty. The newborns heads were bound between two boards to flatten the forehead a few days after the child was born. The Taino played a game called batos, which was played on a marked field with two teams trying to hit the ball with their hips, knees, heads, elbows and shoulders into their opponent’s goal line, was another custom. Kalinago At a son’s birth there was a special ceremony during which the father was cut with agouti teeth and expected to bear the pain without flinching so that his son would grow up to be brave. The boy was periodically rubbed with the fat of slaughtered Tainos so that he might absorb their courage and then he underwent the initiation ceremony, which changed him from a boy to a man, and a warrior. Now he had a new name and was a true Carib. Another custom was the Kalinago used to decorate their bodies with a dye called roucou. This was made from vegetable dye and oil, which the Kalinagos felt toughened their skins and protected against insect bites. Another custom was the Kalinagos entertained many guests and when the guests had eaten their fill they were entertained with singing and dancing to the music of drums, reed pipes and whistles. The guests were welcome to stay as long as they liked and when at last they decided to leave they were given gifts and asked to stay longer. Maya Maya were broad headed and as soon as a baby was born, squeezing it gently between two boards flattened its head. This gave them a noble air and their heads were then better adapted to carry loads. The Maya were also cross-eyed. This was regarded as a special mark of beauty and distinction. Mothers would hang a ball in front of their children so that they would focus on it and therefore develop cross-eyes.

Economic and Social Factors that Affected the Slavery of the South Essay

Slavery had been one of the most controversial and important issues in the history of the United States. The distinction between the whites and the African American slaves could be rooted way back in the past events of the country even when the United States was still under the British rule. Because of this, the turn of events in the country is also related with slavery. The changes in the social and economic factors of the country greatly influenced the situation of slavery in the south. The desire for independence by the Americans has been the primary motivating factor that droved the social changes in the country. However, slavery was regarded as the biggest irony in America’s battle for freedom because their existence is a clear proof that the idea of liberty is more of a privilege rather than an inherent and equal right for all. This is proven by the fact that during the revolution, slavery was already considered as part of the old institution in America. Slavery was present in every colony and became the basis for the economy and social structure from Maryland southward. At the very least, 40 percent of Virginia’s population and at even higher numbers in Georgia and South Carolina had been slaves (Foner 230). Being the case, slavery created a huge impact in the south because their source of living and there very lifestyle have been dependent upon the work that slaves give. This is also the reason that the initiatives to abolish slavery greatly threatened the south. In 1840s, the expansion to the west played an important role as it moved slavery in the center of American politics. The depression that started in 1837 paved the way for the large migration of settlers in further west. The years between 1840 and 1845, about 5,000 emigrants traveled the 2,000 mile journey by wagon train to Oregon. The settlement of some Americans in Oregon perpetuated the southern attitude of patronizing slaves since some of them brought their slaves with them. Nevertheless, the settlement in Oregon is not the main reason for the emergence of the issue of slavery; rather the nation’s acquisition of Mexico caused it. The primary part of Mexico that was settled by a substantial number of Americans was Texas. This could be attributed from the fact that the Mexican government allowed Moses Austin, a farmer born in Connecticut, to permit the Americans to colonize it. In 1820, Austin received a large land grant, which he sells in small portions to Americans settlers. The issue of slavery arises because Mexico already abolished slavery. In April 1836, Sam Houston and his forces defeated the army of Santa Anna, which brought about the independence of Texas. The interest of the South was triggered by this event because they believed that including Texas in the Union and even dividing it to several states could increase their power in the Congress (Foner 465-466). The Compromise of 1850 was created in order to maintain peace within the Union. This helped the south in the sense that the compromise still allows the slavery and only abolished slave trade. The Compromise also left the white inhabitants in the territories of Mexico to decide whether they will continue with slavery or not. In the same manner, the Fugitive Slave Act also aided the south in capturing run-away slaves without the interference of local authorities. Southern leaders support measures that sent federal agents to states in the north in order to capture fugitives. It is also regarded that the Fugitive Slave Act is an example of how the government abided by the interests of the south (Foner 477-479). However, the Fugitive Slave Act also made many people especially from the North realize that this kind of law infringes upon the rights of the citizens as well as of the state. Being the case, this started the changes in the concept of state’s right. The leadership of Stephen A. Douglas helped the states to resolve its dispute regarding the issue of slavery. He hoped to solve the dispute among the northerners and southerners in Congress by applying the principle of popular sovereignty. Sovereignty would allow the local settlers of every state to vote whether they are in favor of slavery or not instead of the Congress. Douglas deemed that popular sovereignty symbolizes the idea of local self-government and it also created a middle ground between the North and South (Foner 479-480). The discussions above show that the underlying concern of the southern sector is to protect their interests. They were very keen in acquiring the necessary power in Congress in order for them to prevent the abolition of slavery, wherein they are greatly dependent upon in terms of their means of income and the overall development of their agricultural sector. Because of this, they are very vigilant of the social and economic changes that are happening in the country in order to make sure that their stakes and interests are safeguarded. Work Cited Foner, Eric. Give Me Liberty: An American History. New York: W. W. Norton and Company, 2007.

Acl Reconstruction Graft Information

Graft report Patellar graft The patellar tendon bone-tendon-bone graft has been the â€Å"gold standard† graft choice for ACL reconstructions since it became common practice in the mid-1980. It has been used extensively by surgeons since that time and still remains the graft of choice for a high number of orthopedists who perform this surgery regularly. The patellar tendon graft has consistently demonstrated excellent surgical outcomes with a 90-95% success rate in terms of returning to pre-injury level of sports.A patellar tendon graft is harvested through a 3-4†³ long incision based just along the medial border of the tendon†¦ The middle third of the tendon 10-11 mm wide is then removed along with 2-2. 5 cm long bone blocks still apart of the tendon at each end of the graft from the tibial tubercle and the outer surface of the patella. This gives a composite bone-tendon-bone graft that has very strong insertion points of the tendon soft tissue into bone. The tensil e strength of this graft has been measured by Noyes (1984) to be about 2950 Newton’s to failure, versus the strength of an intact ACL at 2160 N.What happens to the remaining patellar tendon after a third of it has been removed? Over the course of three to four months after surgery the tendon regenerates or â€Å"grows back†. Initially it seems to overgrow into a thick, large tendon that then remodels back to a more normal contour by 12-18 months postoperatively. Surgeons have even been able to re-harvest another patellar tendon graft from the original tendon once enough time has passed for tendon reconstitution (although there's now evidence that this repaired tissue may not be as strong as normal patellar tendon tissue).Patellar tendon ruptures at the donor site are unlikely after the first few months post-op. Patellar tendon ruptures can and do occur however during the initial 6-8 weeks after surgery if the remaining tendon is stressed too hard. One of the advantages of this construct is that because the bone-tendon interface is quite strong, the surgeon only has to fix the block of bone in the bone tunnel rather than trying to fix the soft tissue itself.A headless screw is inserted next to the bone plug (like a square peg in a round hole) to interference fit and locks the bone in place. The patellar tendon fibers are thereby immediately secured and are stable enough to begin motion and weight bearing when tolerated. The ends of the graft heal bone-to-bone in around 6-8 weeks, which appears to be quicker than the healing process for soft tissue-to-bone. Interference screws are now available in a bioresorbable material that actually dissolves within the bone over 2 to 3 years.The â€Å"gold standard† graft isn't perfect, however. There may be more pain associated with this donor site than from any of the other graft choices. As a result there is sometimes a greater initial atrophy or wasting response of the quadriceps muscle compared to s ay either a hamstring or cadaver allograft. This can require more prolonged physical therapy to recover from and could possibly delay the initial return to sports. The incision (scar) is bigger, and almost all patients end up with a permanent loss of sensation 2-3†³ in size just lateral to the incision.There is a risk of patellar tendon ruptures, as well as fracturing the patella both intraoperative as well as postoperatively, although bone grafting the defect in the patella at the time of surgery has reduced the incidence of the latter. Patients who kneel a lot for a living are often unhappy with the patellar tenderness and sensitivity that can occur at the incision site and should probably consider an alternative graft choice. One of the bigger issues with patellar tendon grafts that recently has a number of orthopedists switching to alternative grafts is the incidence of anterior knee pain when patients try to resume athletic activities.Specifically there are some studies5 s howing an increased rate of patellofemoral pain and/or tendonitis of the patellar tendon with stairs, jumping, skiing and other such activities 6-12 months out from surgery. Ultimately these are often treatable with continued strengthening, rest from sports, and time, but these symptoms can delay the expected time of return to sports. In summary, the patellar tendon BTB graft is a safe and effective option for ACL reconstruction. It has a consistently successful clinical track record at all levels of athletic activity with excellent outcomes and reproducible results.Its major disadvantages are primarily increased tenderness kneeling on the donor incision site, and the possible risk of problems with patellar and patellar tendon pain upon initial return to sports. Semitendinosus Semitendinosus grafts are made with the semitendinosus tendon either alone, or accompanied by the gracilis tendon for a stronger graft. The semitendinosus is an accessory hamstring (the primary hamstrings are left intact), and the gracilis is actually not a hamstring, but an accessory adductor (the primary adductors are left intact as well).The two tendons are commonly combined and referred to as a four strand hamstring graft, made by a long piece. which is removed from each tendon. The tendon segments are folded and braided together to form a quadruple thickness strand for the replacement graft. The braided segment is threaded through the heads of tibia and femur and its ends fixated with screws on the opposite sides of the two bones. Hamstring grafts require a smaller incision and are usually less painful to harvest.Thus the initial postoperative period is often easier and more comfortable with this graft choice. Similarly, because there is no violation of the patellar tendon, there seem to be fewer problems with knee pain during the first few months that a patient is allowed to return to sports. The hamstring incision is away from the patella so patients are usually comfortable kneeli ng after their reconstruction. Because the quadriceps extensor mechanism isn't violated with a hamstring harvest there is often less initial quadriceps atrophy.With a quicker return of knee quadriceps strength some surgeons are allowing their fully recovered patients to return to sports a month or two earlier than they might for a patellar tendon BTB graft.. However there have not been any scientific studies examining the tensile strength to failure of a human ACL graft at three months after implantation that would support this approach. Certainly the animal research done on patellar tendon tensile strength in rhesus monkeys suggested that the graft was actually weakest at 3 months out before maturing at 6 months post-surgery.However the truth is that soft tissue-to-bone healing occurs at a slower rate than bone-to-bone healing. A number of surgeons are concerned that this fact is being ignored when patients are placed into an accelerated rehab without allowing extra time for the gr aft ends to begin to heal to the bone tunnels another disadvantage of hamstring tendon grafts is that harvesting them is a technically demanding procedure that requires considerable surgical experience. Pitfalls such as transecting (cutting in half) a tendon or injuring nerves or ligaments in the area of dissection are possible during the stripping process.There is also a different technique for tensioning the hamstring tendon in the knee once the femoral end has been secured. The graft needs to be pre-tensioned and it's important that each of the four graft ends be individually tensioned during the tibial fixation for best results. Allographs Another alternative available however is to use tissue from a cadaver that is called an allograft. Patellar tendon, hamstring tendon, and even Achilles tendon allografts can be used as ACL graft tissues and are inserted and fixed with the same techniques that are used for autografts.The advantages of using cadaver graft tissue are obvious; no risks, pain, or scars from the donor site. Surgical time is quicker and because there is considerably less discomfort postoperatively, the incidence of joint stiffness and atrophy of the quadriceps muscle is significantly reduced. Allografts are a good choice when there are limitations in a patient's own tissue availability. Complicated multiple ligament reconstructions needing several grafts routinely require the use of allograft tissue in addition to an autograft.Revision ACL reconstructions where an autograft has already been harvested are also an indication for using a cadaver grafts.. The biggest concern with using allografts is the risk of contracting a serious infection from the cadaveric tissue. Hepatitis and HIV can be transmitted through these tissues with potentially fatal outcomes. Bacterial infections are also a possibility and although not usually life threatening, can result in loss of the graft and cause subsequent arthritis. The dilemma with allografts is that they can't be 100% sterilized without altering or even destroying the tensile strength of the graft tissue.Imagine what happens to any food that is pressure-cooked at temperatures over 270 ° F under pressure for 10 minutes and you'll understand what happens to a patellar tendon graft sterilized in an autoclave. Similarly, radiating grafts with high enough doses to kill viruses has been shown to alter the collagen tissue and reduce the graft's tensile strength. Currently the preferred allograft treatment technique is a fresh frozen graft; the tissue is harvested, cleaned and then frozen in liquid nitrogen.The cadaver is screened extensively with hepatitis and HIV testing as well as a life style analysis to identify any high-risk behavior for these illnesses. Blood tests for HIV, however, are not infallible because they can lag 6 months between the time of infection and the conversion to a positive test. Nevertheless, the process is fairly safe and the published rate of contracting HIV f rom these tissue allografts is between 1 in 1. 2 to 2 million. There are some graft procurement companies who are able to do actual direct HIV viral testing on their tissues which lowers the risks even more.And several companies have developed proprietary cleaning techniques that they claim can guarantee sterility of their graft tissues. Some grafts are also treated with low dose irradiation (1-2 Mrads) in a compromise attempt to provide some degree of sterilization without damaging the tissue characteristics. Unfortunately there are some studies indicating that ACL reconstructions using these tissues may stretch out over time so non-irradiated grafts would be the ideal structural choice if infection were not a concern.Unlike organ transplants, allografts aren't usually at risk for tissue rejection by the host. This is because there's very little protein antigen in these washed grafts (the bone ends are completely cleansed of any marrow elements). The majority of the grafts are prim arily made up of collagen, which has very low antigenicity. Laboratory studies have shown that there is universally a low grade immune reaction to insertion of these foreign tissues, but this doesn't appear to be clinically significant in terms of achieving a successful outcome.Bone tunnel widening is sometimes seen with the use of allografts, but similar to the case of hamstring grafts, doesn't seem to have any significance in terms of functional problems. There are some early studies suggesting that allografts take longer to heal in the knee than comparable autograft tissue. At the same time the patient is recovering from the surgery quicker because of the reduced pain and morbidity of not having donated their own graft tissue. Typically allograft patients will feel like they're ready to get back into sports in just 3 or 4 months since their full strength and joint mobility are often achieved at that point.The combination of delayed allograft incorporation with an accelerated reco very can obviously spell disaster in terms of the ACL graft stretching or rupturing altogether. So patients with allografts must completely understand the healing process and comply with the temporary restrictions even though they may think their bodies are telling them it's OK to be doing more athletically. It takes a lot of mental discipline. And obviously it's a misconception that an athlete can return to sports earlier using an allograft in view of the above. The last disadvantage of allografts relates to the practical issues of cost and availability.There has been a national shortage of patellar tendon allografts due to increasing demand combined a low supply of suitably qualified cadavers. This shortage has been created in part by physicians who routinely use allografts as their first choice for ACL reconstruction grafts in spite of the fact that autograft tissues work wonderfully. Other cadaveric tissues such as hamstrings, Achilles tendons, and even anterior tibialis and pos terior tibialis tendons (some of the ankle tendons) are often being used instead of patellar tendons due to this availability issue.Some surgeons simply don't have ready access to the facilities that procure and process allografts. And allografts are expensive, running anywhere from $2000 to $10,000 depending on the tissue type and your geographic location My Choice If I needed to go into surgery for an ACL reconstruction surgery and I had to choose from one of these graft options, I would choose to go with the semitendinosus graft. I would shy away from the allograft mainly because I am uncomfortable with the whole idea of donor replacements being implanted in my body.Along with the great threat of infection the allograft also tends to be hard to obtain with a nationwide shortage of acceptable cadavers, therefore making them very expensive. When comparing the patellar graft and the semitendinosus graft its hard to find much of a difference in the results, both offer good knee stabi lity with minimal adverse effects after surgery. However, the semitendinosus graft affects a much different and less major tendon group, in return providing less knee related problems after surgery therefore giving it the advantage over the patellar graft in my eyes.

Minerals That Live on the Earths Surface

Minerals That Live on the Earth's Surface Geologists know about thousands of different minerals locked in rocks, but when rocks are exposed at the Earths surface and fall victim to weathering, just a handful of minerals remain. They are the ingredients of sediment, which over geologic time returns to sedimentary rock. Where the Minerals Go When the mountains crumble to the sea, all of their rocks, whether igneous, sedimentary or metamorphic, break down. Physical or mechanical weathering reduces the rocks to small particles. These break down further by chemical weathering in water and oxygen. Only a few minerals can resist weathering indefinitely: zircon is one and native gold is another. Quartz resists for a very long time, which is why sand, being nearly pure quartz, is so persistent. Given enough time even quartz dissolves into silicic acid, H4SiO4. But most of the silicate minerals that compose rocks turn into solid residues after chemical weathering. These silicate residues are what make up the minerals of the Earths land surface. The olivine, pyroxenes, and amphiboles of igneous or metamorphic rocks react with water and leave behind rusty iron oxides, mostly the minerals goethite and hematite. These are important ingredients in soils, but theyre less common as solid minerals. They also add brown and red colors to sedimentary rocks. Feldspar, the most common silicate mineral group and the main home of aluminum in minerals, reacts with water too. Water pulls out silicon and other cations (CAT-eye-ons), or ions of positive charge, except for aluminum. The feldspar minerals thus turn into hydrated aluminosilicates that are clays. Amazing Clays Clay minerals are not much to look at, but life on Earth depends on them. At the microscopic level, clays are tiny flakes, like mica but infinitely smaller. At the molecular level, clay is a sandwich made of sheets of silica tetrahedra (SiO4) and sheets of magnesium or aluminum hydroxide (Mg(OH)2 and Al(OH)3). Some clays are a proper three-layer sandwich, a Mg/Al layer between two silica layers, while others are open-face sandwiches of two layers. What makes clays so valuable for life is that with their tiny particle size and open-faced construction, they have very large surface areas and can readily accept many substitute cations for their Si, Al and Mg atoms. Oxygen and hydrogen are available in abundance. From the viewpoint of living cells, clay minerals are like machine shops full of tools and power hookups. Indeed, even the building blocks of life- amino acids and other organic molecules- are enlivened by the energetic, catalytic environment of clays. The Makings of Clastic Rocks But back to sediments. With the overwhelming majority of surface minerals consisting of quartz, iron oxides and clay minerals, we have the ingredients of mud. Mud is the geological name of a sediment that is a mixture of particle sizes ranging from sand size (visible) to clay size (invisible), and the worlds rivers steadily deliver mud to the sea and to large lakes and inland basins. That is where the clastic sedimentary rocks are born, sandstone and mudstone and shale in all their variety. The Chemical Precipitates When the mountains are crumbling, much of their mineral content dissolves. This material reenters the rock cycle in other ways than clay, precipitating out of solution to form other surface minerals. Calcium is an important cation in igneous rock minerals, but it plays little part in the clay cycle. Instead, calcium remains in the water, where it affiliates with carbonate ion (CO3). When it becomes concentrated enough in seawater, calcium carbonate comes out of solution as calcite. Living organisms can extract it to build their calcite shells, which also become sediment. Where sulfur is abundant, calcium combines with it as the mineral gypsum. In other settings, sulfur captures dissolved iron and precipitates as pyrite. There is also sodium left over from the breakdown of the silicate minerals. That lingers in the sea until circumstances dry up the brine to a high concentration, when sodium joins chloride to yield solid salt or halite. And what of the dissolved silicic acid? That too is extracted by living organisms to form their microscopic silica skeletons. These rain down upon the seafloor and gradually become chert. Thus every part of the mountains finds a new place in the Earth.

How to Improve Your English Pronunciation

How to Improve Your English Pronunciation One of the most important aspects of learning English is pronunciation. Without clear pronunciation, it is difficult to make yourself understood. First, start by learning individual sounds. After that, focus on the music of the language. You might be surprised by the following statement: Pronouncing every word correctly leads to poor pronunciation! Good pronunciation comes from stressing the right words- this is because English is a time-stressed language. In other words, some words- the content words- receive more focus, whereas other words- function words- are less important. Difficulty: Hard Time Required: Varies Here's How to Improve Your Pronunciation: Start by  learning individual sounds. These are called phonemes.  Use minimal pairs to practice individual vowel sounds. Minimal pairs are words in which only one sound changes. For example, pop - pep - pip - pap  changes the vowel sound. Using minimal pairs helps you isolate a sound to really focus on the small changes in sounds between vowels.  Learn pairs of consonants that are voiced and voiceless and practice through minimal pairs. For example,  f / v  the f sound is voiceless and the v voiced. You can recognize the difference between voiced and voiceless by placing a finger on your throat. Voiced sounds vibrate, whereas voiceless sounds do not vibrate. These pairs include: b / p - z / s - d / t - v / f - zh / sh - dj / ch.Learn the difference between pure vowels and diphthongs such as the oi sound in boy or aee sound in tray.  Learn the following rules concerning pronunciation: English is considered a stressed language while many other languages are considered syllabic. In other languages, such as French or Italian, each syllable receives equal importance (there is stress, but each syllable has its own length). English pronunciation focuses on specific stressed words while quickly gliding over the other, non-stressed, words. Stressed words are considered content words: Nouns e.g. kitchen, Peter- (most) principal verbs e.g. visit, construct- Adjectives e.g. beautiful, interesting- Adverbs e.g. often, carefully Non-stressed words are considered function words: Determiners e.g. the, a- Auxiliary verbs e.g. am, were- Prepositions e.g. before, of- Conjunctions e.g. but, and- Pronouns e.g. they, she. Try It for Yourself Read the following sentence aloud: The beautiful mountain appeared transfixed in the distance. Now, read the following sentence aloud: He can come on Sundays as long as he doesnt have to do any homework in the evening. Notice that the first sentence actually takes about the same time to speak well! Even though the second sentence is approximately 30% longer than the first, the sentences take the same time to speak. This is because there are five stressed words in each sentence. Exercise: Write down a few sentences, or take a few example sentences from a book or exercise.First underline the stressed words, then read aloud focusing on stressing the underlined words and gliding over the non-stressed words. Youll be surprised at how quickly your pronunciation improves! By focusing on stressed words, non-stressed words and syllables take on their more muted nature.When listening to native speakers, focus on how those speakers stress certain words and begin to copy this. More Tips toImprove Pronunciation Remember that non-stressed words and syllables are often swallowed in English.Always focus on pronouncing stressed words well, non-stressed words can be glided over.Dont focus on pronouncing each word. Focus on the stressed words in each sentence.

Economic of Ocean Resources Assignment Example | Topics and Well Written Essays - 1000 words

Economic of Ocean Resources - Assignment Example This thus makes the management and conservation of the international public good vital to both those bordering the water bodies and those who do not, failure to conserve the water bodies effectively has myriad economic ramifications as portrayed in the discussion below. Ineffective management of oceans refers to the lack of effective administrative policies to regulate the use of the international public good thus permitting everyone to use the ocean as they wish. Among the numerous uses of oceans include navigation thus transportation of goods, sports and tourism among many others. While the ocean offers such primary services to the people, they constitute part of the global ecosystems often surviving numerous species of aquatic wildlife (Erwin, Cornelis and Timothy 5). Failing to manage the ecosystem thus permits those who use the resource to pollute the waters while those engaging in fishing to overfish even some of the endangered species in such ecosystems. The consequences of a polluted ocean are dire. These affect every citizen of the globe despite their relationship with such water bodies owing to the production of impure public goods. As a public good, the consumption of the oceans requires the ocean to remain pure and conducive. This implies that the governments that border the water bodies must formulate effective policies that govern the use of the ocean often safeguarding the interests of the natural ecosystems found in the oceans. Among the major factors that pollute the water, include oil spillage and garbage management. The large oil tankers among other vessels that use the ocean must ensure effective and considerate use of the resource in order to curb instances of spilling oil among other types of impurities into the oceans. Additionally, industrial cities situated strategically along the water bodies must manage their wastes effectively in order to curb dumping of industrial refuse into the ocean.  Ã‚  

Political Philosophy - What is the best form of government Essay

Political Philosophy - What is the best form of government - Essay Example Plato’s argument against democracy is dependent on the basis of it being centered on the power of the people to decide what they deem is good for them. The problem of the lack of specialization on matters of the state poses a problem on the choosing of the best possible solution. The Greek word ‘demos’ which translates to ‘the people’ is easily attributable to the concept of ‘the mob.’ This is where the concept of the silent majority and the loud minority may come to play. The word mob by itself sends a negative connotation that can be thought of as unruly and chaotic. Plato proposes that a leader should be holistic in his education and approach to ruling the state. Foremost, he must be a philosopher as Plato thinks that this enables him to consider the importance of education for others. There are also other requirements which include knowledge in music, mathematics, military, and physical education. The analogy of a person’s heal th to a state directly explains why Plato does not favor democracy. The state and its health need to be attended to be by a doctor (Wolff, p. 67). A physician will be able to administer with skill and accuracy correct judgment because of his expertise. This in essence undermines the capacity of the people to articulate good views. Mills idea of democracy is very straightforward, â€Å"to improve the citizens, and to manage their public affairs. Thus governments are to be judged by their effects on individuals, whether they improve them morally and intellectually, and by their efficiency in dealing with matters of public concern† This essentially means the need for representation and the importance of the power of the constitution becomes tantamount. People thrive when they are given independence. Everyone plays a part in the realization of sovereignty by being protective against the danger of oppression (p. 94-95). Rousseau’s proposition is not so different from that of Plato