MRI Essay Example | Topics and Well Written Essays - 2000 words

MRI - Essay Example Slice thickness, is one important parameter, which divides the body part being examined into sections of varying width or thickness. The result of examination depends on the slice thickness. If it happens to be a minute problem, then the slice thickness will be small, because a larger slice thickness might result in erasing small lesions or pathologies. MRI is mainly used to look into the brain and the nervous system of human body to figure out the inconsistencies using the functional magnetic resonance imaging, as these parts happen to be the most delicate parts of human body. Prasad (2005, 292) states that the 'MR images are in effect computer generated visual reconfigurations of physical data such as the relaxation times of hydrogen atoms that are found abundantly in the body.' More than two third of our body is made up of hydrogen atoms. Hydrogen exists in different forms in our body. For example water (H2O), consisting of two H atoms and one O, makes up about 70 percent of human body. In addition Hydrogen atoms are also present in the tissues and fat present in human body. When magnetic energy is sent into our body using radio frequencies, the hydrogen atoms absorb the magnetic rays and send out the same magnetic energy, depending upon the extent of magnetisation. As the nuclei of the hydrogen atoms happen to be in the form of small magnets, so when the magnetic fields change in their surroundings, they respond accordingly. This movement is recorded by the MRI equipment which in turn is analysed by the healthcare professionals to decipher the exact composition. As the experiments started off with an emphasis on nucleus, in early days MRI was known as Nuclear Magnetic Resonance (NMR). Since the process itself is stated to involve very small amount of energy, the normal biochemistry of human body is not affected. The key requirements for performing an MRI include; A strong magnetic field through the primary magnet, emanating out of the a magnetic which could be a permanent, resistive or a superconductive Gradient magnets for fine tuning the magnetic fields The scanning table on which the patient is allowed to lie Attached computers and film for taking the printout of the scan The individual who is to undergo MR imaging is allowed to comfortably lie on a sliding table. The table is then slid into a cylindrical structure which is surrounded by the magnets. Once everything is in position, the magnetic field is turned on; this creates a 2-dimensional image of the particular body part of the person on the computer screens. A coil is placed around the body part/ object which is under observation for MRI, exclusively to pick up the signals for the image. Well, just to make things easier a talk-back system is also in put in place so that after the start of clinging sound the patient doesn't feel uncomfortable, and if required he can communicate with the radiologist. The procedure may last for about 25-50 minutes depending upon the requirements and the complexity of the patient condition. There are in general two to six imaging sequences, each lasting for about 10-15 minutes. Since the process involves magnetic fields, it is therefore advised that anybody having m etallic implants in their bodies must inform the radiologist beforehand, so that adequate

Coney Island Hospital Essay Example | Topics and Well Written Essays - 1250 words

Coney Island Hospital - Essay Example Coney Island Hospital prides itself in its ability to take an active role in building a healthier Southern Brooklyn. In so doing, the hospital makes a cognizant effort to reach out the ethnically diverse community it is an integral part of. This is done through the utility of innovative approaches. The Community Wellness 2000 initiative represents one of the many community-based coalitions utilizing a proactive healthcare method. In so doing, it imparts a strong philosophy of health maintenance and sickness prevention as a means of improving the health and well-being of the individuals within the community of Southern Brooklyn. The fundamental goal of initiatives such as the Community Wellness 2000 initiative is the provision of preventive and integrated healthcare services (New York City Department of Health, 2006). One of the fundamental strengths of Coney Island Hospital is its ability to provide superior clinical services to its culturally and ethnically diverse constituents. In its advertisement, the hospital emphasizes its excellent departments and specialty areas. These areas include Adolescent Medicine, Urology, Cardiology and Cardiac and Pulmonary Rehabilitation. Additionally, Coney Island Hospital prides itself in the fact that it has worked arduously to expand its Women's Health services to include a multi-disciplinary Osteoporosis Program which is built around the concept of preventative medicine. Another area of improvement within the hospital is the improved level of services provided by the Breast Health Center. Through its utility of state of the art technology, the hospital has strategically positioned itself as one of the leading facilities for breast disease detection and management (New York State Department of Health, 2006). One of the most distinguishing features of Coney Island Hospital is its recently-formed community-based alliance with practitioner within the private sector. This alliance as embodied in the "Partners In Private Practice" program has experienced phenomenal growth and in a relatively short period of time, it has grown to include six medical offices that provide both primary care and specialty services. These offices are truly a part of the ethnic and cultural diversity Coney Island Hospital caters to in that the offices are specifically designed to serve the Russian, Pakistani and Chinese communities (New York City Health and Hospitals Corporation, 2006). The specialty services offered by Coney Island Hospital serve as the main distinguishing features. Its specialty services include Adolescent Medicine, Adult Primary Care, Ambulatory Services, Breast Health Center, Cardio-Pulmonary Rehabilitation Center and multicultural services. The Adolescent Medicine Program proves dedicated services to young people between the ages of 12 and 21. The services offered to the young people serviced by this program includes preventive and curative services for sexually transmitted diseases, substance abuse, weight/nutritional management, scoliosis as well as vision, hearing and psychological assessments and social services. The ambulatory surgery department of Coney Island Hospital is one of the highest rated in the tri-state area. It boasts modernized pre-test and registration areas as well as a state

Warranty Review Assignment Example | Topics and Well Written Essays - 500 words

Warranty Review - Assignment Example This paper explores warranty on sale of an electronic (Lenovo smartphone). Warranty on the selected Smartphone included in its quality description. Under this, it is stated that the Smartphone has 8GB internal memory and various applications. The application already installed includes Opera Mini browser, Face book, Mozilla Firefox among other several applications. The smartphone is also installed with video recorder and internal camera. These UCC warranty are located under Express Warranty. They have no modification and are the original manufacturer derived. This warranty generally describes the expected quality of the Lenovo Smartphone as described by the manufacture. Among other warranty described includes screen sensitivity. Being a touch screen smartphone, the customers are assured of high sensitivity to touch. The phone is also resistant to interference with water as waterproof materials cover it. It can remain in use for a long period without knocking down and has varying versatile uses. All these are located under Express Warranty (Miller 285). Ther efore, they do not contain modification words and not guaranteed Other warranty provided includes warranty on merchantibity and fitness for use for a given purpose. The warranty document states that the smartphone so provided is durable when handled with care. It is also warranty that the materials used for manufacturing the smartphone is of excellent quality. Therefore, it has no threats to users and handlers of the smartphone. These entire guarantees are located in Merchantibity Warranty. The modification under merchantability is that the manufacture do not take responsibility on quality not included in the contract. The warranty applies only when there is a complication with the stated quality (Miller 285). Under warranty of fitness for use, its stated that use of the social media application provided have no guaranteed privacy. Compromises of quality due to the use of

Earned Value Management in Multi-Projects and Programmes Essay

Earned Value Management in Multi-Projects and Programmes - Essay Example The paper will analyse earned value management by discussing three major objectives. The first will be describing the most important factors that should be considered when monitoring and controlling programs and multi-projects. The other will be to explain the advantages of implementing Earned value management for these programs and multi-projects. Finally yet importantly will be to establish the significance of earned value management data accuracy. There are five major factors that are considered by an earned value management technique. The first is organisation: It involves creating a work breakdown structure (WBS). The WBS is supposed to detail down all activities, to describe the task to be carried out, and the relationship it has to the products that can be delivered (Humphreys & Visitacion, 2009). In organisation, there is also the OBS, which refers to the organization breakdown structure. It is responsible for identifying the person in charge of the work effort described by the WBS. Both the WBS and the OBS define a control account. It means that at this level is where the key management control point is found. Planning, budgeting, and scheduling makes up the second group that an earned value management considers. An integrated schedule is what creates the contractors map to meet their objectives in a program of multi-project they are responsible for (Humphreys & Visitacion, 2009). The schedule has to be loaded with resources so that it can determine an effective budget as scheduled. The total budget created for every task, control account, or the whole project is known as the budget at complete (BAC). Management reserve (MR) is a backup of the total project amount that is incorporated to take care of the uncertainties that may occur, such as risks. Work should only begin when a formal work authorization has been offered. The disciplined approach clearly defines

Applied Behavioral Analysis II Essay Example | Topics and Well Written Essays - 1750 words

Applied Behavioral Analysis II - Essay Example According to the data provided, the intervention employed by Martin worked. The behavior exhibited by the patient Sara included banging her head against the wall, pulling her hair, and biting her arm. These behaviors according to the differential reinforcement of other (DRO) procedure were inappropriate. From the data provided, the frequency of biting her arm reduced from 10 to 7, the frequency of pulling her hair reduced from 23 to 5, and the frequency of banging her head against the wall reduced from 15 to 6. The method was not that successful although it reduced the frequency of the inappropriate behavior. The method is most effective for children aged four to twelve; Sara was only fourteen years old. For middle school setting in which Sara belongs, the method is used for integration into the self-management plans (NPDC on ASD 1). The ABAB reversal design has ethical and practical limitations when the intervention is withdrawn. The ethical issues become significant when the behavior that is being targeted is more problematic; this is the case with the Tier 3 RTI cases. In ABAB reversal design can be lengthened to for full observance of the return to baseline. Another limitation with this method is that some of the target behaviors can fully exhibit the return to baseline. In such a case, the learned behaviors partially return or they are returned on the basis of variability or the rate of learning. The resultant effect is the weak version of the reversal design in majority of the academic situations (Burns and Riley-Tillman 46). Due to these serious limitations, the method is faced with a number of ethical issues as discussed above. If Martin had used the method on Sara, a number of ethical issues could have been raised concerning the method. These ethical implications include the problem with the behavior of the target, and the partial return of the learned

Assignment about ethics 2 Example | Topics and Well Written Essays - 1000 words

About ethics 2 - Assignment Example Julie arrived late in an ice storm but managed to get to the offices of Wal-Mart headquarters where Wright started grilling her regarding the agency review process. He asked her how she had picked DraftFCB as the agency which would take Wal-Mart on the amount of 1 billion dollars per year account. Julie had interviewed about 30 agencies before settling on the Draft. The questions that the president of the company asked her were based on whether she had allowed any of the agencies to pay for her dinner while she was talking to them. he also asked her of whether she had agreed to be carried in one of the cars that belonged to those agencies (Salmon, 2012). Four days after the interview had taken place, Juulie Roehm was fired because she had violated the strict ethcs policy that had been set for all Wal-Mart’s employees. As Wal-Mart expert stated, â€Å"Wal-Mart had a kind of unbending almost obsessive adherence to even the trivialist elements of an ethical code. They are a brut al competitor and everybody acknowledged that. However, Wal-Mart was also the company that wouldn’t take a dinner from you, that wouldn’t let you provide a soda if you went to meet them to talk about business, where they wouldn’t join trade associations for many, many years because they didn’t want to pay dues and have a conflict of interest† (Salmon, 2012). It is well known that Castro-Wright, who was the president, was responsible for the corruption scandal that happened in Walmex. This brought up an important question. Did the corruption that occurred in one of Wal-Mart’s chains occur irrespective of Wal-Marts strict ethics code? The point of contention here is that Wal-Mart left essentially nothing to the discretion of its employees showing that is did not trust any employee to do the right thing or make the right decision. Wal-Mart had codified everything in the form of rules and instructed that all employees follow these rules to the la tter. This issue resulted in a detrimental effect that can be seen in Roehm’s situation just for the fact that she agreed to take a soda (Salmon, 2012). On top of that, the senior executives of Wal-Mart were expected to have high levels of discretion when it came to ensuring that those rules were strictly implemented. Therefore, for a person like Roehm who failed to reach that level of discretion was easily fired. On the other hand, when it came to investigations of the conduct of the company’s president it was easy to give the roles of the investigation to one of his loyal subordinates who did what the president expected him to do and burry the case. Accepting dinner is not in any way illegal. However, engaging in sham investigations is illegal. In Wal-Mart, the allegations of the corrupt deals that happened at the Mexican chain, Walmex, ought to have been taken more seriously than what Roehm did. However, the executives at Wal-Mart saw the world in black and white an d failed to differentiate between unethical behavior and an illegal conduct. As a result, Wal-Mart executives were liable for criminal charges. This issue presents a conflict of int

Guyana-Land of Many Waters Essay Example for Free

Guyana-Land of Many Waters Essay Guyana (guy-anna),[6] officially the Co-operative Republic of Guyana,[1] is a sovereign state on the northern coast of South America. Culturally Guyana is part of the Anglophone Caribbean. Guyana is one of the few Caribbean countries that is not an island. The Caribbean Community (CARICOM), of which Guyana is a member, has its secretariats headquarters in Guyanas capital, Georgetown. Guyana was originally colonized by the Netherlands. Later, it became a British colony and remained so for over 200 years until it achieved independence on 26 May 1966 from the United Kingdom. On 23 February 1970, Guyana officially became a republic. In 2008, the country joined the Union of South American Nations as a founding member. Guyana, a member state of the Commonwealth of Nations, is the only South American nation whose official language is English. Historically, the region known as Guiana or Guyana comprised the large shield landmass north of the Amazon River and east of the Orinoco River known as the Land of many waters. Historical Guyana consists of three Dutch colonies: Essequibo, Demerara, and Berbice. Modern Guyana is bordered by Suriname to the east; by Brazil to the south and southwest; by Venezuela to the west; and by the Atlantic Ocean to the north. At 215,000 square kilometres (83,000 sq mi), Guyana is the third-smallest independent state on the mainland of South America after Uruguay and Suriname. Its population is approximately 770,000. The name Guyana is derived from Guiana, the original name for the region that now includes Guyana, Suriname, French Guiana, and parts of Colombia, Venezuela and Brazil. According to the Oxford English Dictionary, the name comes from an Amerindian word meaning land of many waters. here are nine Native American tribes residing in Guyana: the Wai Wai, Machushi, Patamona, Arawak, Carib, Wapishana, Arecuna, Akawaio, and Warrau. Historically the Arawak and Carib tribes dominated Guyana. Although Christopher Columbus sighted Guyana during his third voyage (in 1498), the Dutch were the first to establish colonies: Essequibo (1616), Berbice (1627), and Demerara (1752). After the British assumed control in the late 18th century, the Dutch formally ceded the area in 1814. In 1831 the three separate colonies became a single British colony known as British Guiana. A map of Dutch Guiana 1667–1814. Since Independence in 1824, Venezuela has claimed the area of land to the west of the Essequibo River. Simon Bolivar wrote to the British government warning against the Berbice and Demerara settlers settling on land which the Venezuelans claimed was theirs. In 1899 an international tribunal ruled the land belonged to Great Britain. Map of British Guiana. Guyana achieved independence from the United Kingdom on 26 May 1966 and became a republic on 23 February 1970, remaining a member of the Commonwealth. The US State Department and the US Central Intelligence Agency (CIA), along with the British government, played a strong role in influencing political control in Guyana during this time. The American government supported Forbes Burnham during the early years of independence because Cheddi Jagan was identified as a Marxist. They provided secret financial support and political campaign advice to Burnhams Peoples National Congress, to the detriment of the Jagan-led Peoples Progressive Party, which was mostly supported by Native American Guyanese. In 1978, Guyana received international notice when 918 members of the American cult, Peoples Temple, died in a mass murder/suicide. Most of the suicides were American and more than 300 children were killed; the people were members of a group led by Jim Jones in Jonestown, the settlement which they had created. Jim Jones bodyguards had earlier attacked people landing at a small remote airstrip close to Jonestown, killing five people, including Leo Ryan, the only congressman ever murdered in the line of duty in US history. In May 2008, President Bharrat Jagdeo was a signatory to the UNASUR Constitutive Treaty of the Union of South American Nations. Guyana has ratified the treaty.