Groupon Essay

1. Introduction Groupon is a deal-of-the day Internet start-up company that was launched in 2008 in Chicago. The website offers discounted deals for local as well as national companies. Now operating in more than 150 markets as diverse as the United States, Canada, Taiwan, Brazil, Europe, South America, South Africa, the United Arab Emirates, China, Russia and many more. Consequently there is no doubt that this company is a multinational enterprise (MNE). Groupon had 35 million registered users by October 2010 and thus has been one of the fastest growing businesses in the world (Lacrote, 2011). According to Andrew Mason, founder and CEO, Groupon was founded to be the first company to offer the very best deals available. This could only be done by contacting local merchants directly which gave Groupon its competitive advantage. Using this local responsiveness Groupon is able to offer the best deals every day within 24 hours (Cutler, 2010). The aim of this paper is to analyze how successful Groupon’s global strategy can be implemented worldwide. Firstly an overall impression of Groupon’s  business model and organizational structure is given. Secondly a deeper insight in the corporate strategy as well as the global strategy is provided. Furthermore the unsuccessful entry to China is analyzed and evaluated. Finally this paper conducts to what extent Groupon can be considered socially responsible before a conclusion is drawn in the last section. 2. The Business Model Groupon is a multinational start-up company that offers one â€Å"Groupon† per day in each of their markets (Deborah, 2009). In the beginning of the process Groupon congregates with another business to set up a deal for a certain product or service. As a next step, both parties  negotiate a minimum number of participants, which have to sign up for a deal to become available. In the end the price discount of each voucher has to be identified. This price is paid by the end consumer and is usually split equally between Groupon and the merchant. The reason why merchants are attracted to Groupon’s business model is that the high quantity sales of each voucher are very beneficial. In addition, merchants profit from several marketing channels, which are used by Groupon. Thus a win-win situation is created. 3. Organizational Structure Groupon’s top-level corporate management is based in Chicago. CEO, Andrew Mason and the most important worldwide functional managers navigate the global coordination from the headquarters. Top-level corporate managers provide direction and purpose, leverage corporate performance and ensure continuing renewal (Bartlett and Beamish, 2008). Hence, the most important strategic decisions are to be made in the headquarters. Groupon’s Geographic subsidiary Managers are established for certain geographical areas (Organizational Chart Groupon, 2012). Those managers have to interpret cultural differences on the one hand and implement the corporate strategy on the other hand (Bartlett and Beamish, 2008). In order for Groupon to be locally responsive the company is providing small- and medium-sized businesses (SMBs) from which they can manage their subdivisions in different geographic areas. For Groupon it is important that geographic subsidiaries have a high degree of freedom and thus react quicker and respond to local demand. As a result, Groupon’s subsidiary orientation can be considered geocentric because geographic managers make decisions about local responsiveness while headquarters decide on the overall corporate strategy (Perlmutter, V. 1969). 4. Groupon’s corporate strategy As Groupon is established in many countries of the world, a global strategy has to be pursued on the one hand. This leads to a gain in brand equity, brand awareness and global efficiency. On the other hand Groupon offers national as well as local deals, which caused the business to act locally responsive as well. Groupon, for this reason, can be considered transnational, as the company acts â€Å"more responsive to local needs while capturing the benefits of global efficiency† (Bartlett and Beamish, 2008, p13). Today’s MNEs compete in highly complex, diverse and constantly changing business environments. This is due to globalization of markets as well as acceleration of product and technology life cycles. Most importantly however is the intensification of global competition for Groupon. Most online services are easy to imitate. Therefore it has been of utmost importance that Groupon’s managers take the right actions and develop appropriate strategies. Groupon has access to highly educated international managers that sense and interpret complex and dynamic environmental changes. These managers have developed and integrated multiple strategic capabilities in order to cope with today’s business world. As it was very hard for Groupon to enter foreign markets, Groupon identified several companies that were interested in forming joint ventures. An important part of their global expansion strategy that was centrally managed from Chicago, was developing five pronged strategies that led to global efficiency and competitiveness. First of all, Groupon has introduced a coordination strategy that focuses on an analysis of various goods and services that would be engaging and appealing to the subscribers. Once these goods and services have been identified, Groupon’s managers start the process of initiating, negotiating, arranging, and executing. As soon as the coordination strategy is in place, Groupon discovers a pricing strategy. Due to the high discounts for  customers on the one hand and the provision of highly effective marketing instruments for comp anies on the other hand a win-win deal is created. Groupon sets a fixed price and a fixed deadline when the deal  ends. By doing so, the target group has limited time to purchase the offerings and is therefore under some pressure to buy the product instantly. In Addition, the deal only takes place when a minimum number of buyers are reached. This way the seller obtains full planning certainty for the particular deals. Another important part of Groupon’s strategy is advertisement. Many companies find it interesting to offer products via Groupon because of their heavy marketing activities they undertake. By advertising and selling the company’s products, companies benefit of free marketing as Groupon only charges a fixed percentage of the selling price. Product offering is the fourth of the five strategies they came up with. In this section, they identify possible highly demanded products and undertake a lot of research and carefully examine the preference of the people catering to the local market. Finally, Groupon added a special features strategy in which they market their service as we ll as the products in a unique way. 5. Groupons Global Strategy Joint ventures play an important role for Groupons expansion strategies. As Groupon has successfully started and expanded their business in the United States they quickly realized that there is a high demand for deal of the day business overseas as well. One of the first market entries outside the United States was entering European market. Although well-established companies were already the deal of the day their business model, Groupon was eventually able to benefit from those competitors. Oliver Samwer, founder of Citydeal was the first competitor who interacted with Groupon. Andrew Mason described this meeting as follows: â€Å"After a few days with Oliver [Samwer] and the rest of the Citydeal management team, we realized that they were among the best operators we’d ever metâ€Å" (Chan & Lee, 2011). Afterwards Groupon analysed the situation and realized that Citydeal was already dominating the European market. Competing with them would have been extremely difficult and risky as opening own facilities all across Europe  would have been a substantial investment. As a  result, Groupon was rather interested in a acquisition and bought Citydeal in 2010 for 126 million dollars. This investment enabled Groupon to instantly gain access to the European market. Groupon was providing their experience from America, whereas they received local marketing expertise and well educated employees. When engaging in cross-border collaborations MNEs try to overcome any protectionist barriers as well as overcoming national regulations by having good political contacts. (Bartlett and Beamish, 2008) Nevertheless, those relationships often involve great risk as a substantial amount of capital investment is required. It is often uncertain whether companies can actually benefit from economies of scale and scope as well as arbitrage opportunities. To illustrate the source of forming competitive advantage more precisely this paper introduces the AAA-Framework by Ghemawat, 2005 (Appendix 1). In this model Groupon can be placed close to adaption as they attempt to act locally responsive by supplying their customers with national as well as local deals. Aggregation also plays a vital role because Groupon â€Å"attempts to deliver economies of scale by creating regional (†¦) operations; it involves standardizing the product (†¦) offering and grouping together the development and production processes.† (Bartlett & Beamish, 2011). Moreover, Groupon is trying to make use of arbitrage opportunities, which â€Å"is the exploitation of differences between national and regional markets, often by locating separate parts of the supply chain in different places (†¦)† (Bartlett & Beamish, 2011) However, arbitrage takes an inferior position as Groupon is providing a service and does not have production facilities. 6. Groupons entry to China After successfully expanding business into many markets before, Groupon ran into some difficulties when starting a joint venture in China. Groupon’s general strategy when entering  new markets is aggressively penetrating the market to gain market share very quickly. As competition in the market was a lot more intense than expected, this strategy did not work in China (Chao, 2012). Using a unified entry  strategy in every country without adapting to the differences, which are present in each market, is known as the United Nations Model (Bartlett and Ghoshal, 1986). When Groupon entered the Chinese market they were proclaiming to become the biggest online shopping site right from the beginning. This arrogant attitude did not take any strong competitors in the Chinese market into account (Chao, 2012). Competitors knew exactly how to treat customers and vendors according to the Chinese circumstances. One example is that Groupon tried to split the profits with vendors equally. Local competitors were used to charging only ten percent, which gave vendors no incentive to consider Groupon (Chao, 2012). In addition to that, the world leader in the discount deal business did not consider hiring more than 2 Chinese managers in their senior management team. This resulted in very low local responsiveness, as western managers did not know the Chinese culture well enough (Chao, 2012). To overcome cultural difference Groupon startet a joint venture with the Chinese online deal website Tencent (Chan & Lee, 2011). This joint venture gave Groupon the opportunity to adapt a rather local strategy. It would have been easy to learn from Tencent and employ a more responsive strategy afterwards. Again, Groupon did not take notice of the need to learn from this locally established company and hired expats to run operations around the country (Zhu, 2011). Consequently, there is evidence that Groupon’s competence of local organization in China has been very low. Since the Chinese market provides a significant purchasing power, China can be viewed as an environment of high importance for Groupon. A subsidiary that can be characterized by a high strategic importance and a low competence of local organization is called a â€Å"Black Hole† (Bartlett & Ghoshal, 1986). Managing once way out of a â€Å"Black Hole† is extremely difficult and Groupon would have to choose the right strategy to do so successfully. Bhattacharya and Michael describe in â€Å"How Local Companies Keep at Bay† that local companies can beat  multinational Enterprises by pursuing several distinguishing strategies (Bhattacharya & Michael, 2008). As strong competition has been one of Groupon’s main problems when entering the Chinese market, in order to gain market share against local companies the MNE has to analyze how locals are able to outperform their global strategies. Afterwards those strategies have  to be used against the local companies (Bhattacharya & Michael, 2008). In the case at hand, Groupon would have to adapt to the locally responsive strategies and pair them with their own expertise. More specifically Groupon would need to start by learning from its venture partner and hiring local managers who know how the Chinese market works. Besides choosing the wrong entry strategy, Groupon’s low local competence was caused by ethical differences. On the one hand Chinese employees felt like they were not treated fairly when Goupon fired around 400 people in 2011 (Chao, 2011). On the other hand Groupon ran an offending advertisement during the Super Bowl in the USA (Chao, 2011). A solution to such a conflict of cultural tradition is for the manager to ask oneself if the company’s practices would be acceptable if the manager’s country were in a similar state (Donaldson, 1996). If Groupon is able to successfully implement those changes the national subsidiary would take the new role of a â€Å"Strategic Leader†. A â€Å"Strategic Leader† is characterized by a high competence of local organization and a high strategic importance of local enviro nment (Bartlett & Ghoshal, 1986). 7. An evolving global role Multinational enterprises are more and more responsible for the establishment of a tremendous gap between rich and poor all over the whole world. Using global strategies and exploiting economies of scale and scope can be viewed as very exploitative and irresponsible. To see if Groupon is acting socially responsible one can analyze the level of responsibility by  distinguishing between four MNE postures. Firstly there is the exploitive MNE, which is known to use socially irresponsible opportunities to maximize profits. An exploitive company might take advantage of the cheapest possible workforce it can find by employing children in unsafe environments working long hours. Secondly a transactional MNE is described. This posture is characterized by trying to maximize profits and acting socially responsible on the other hand. Those companies settle at the boarder to being socially irresponsible while not actively engaging in any social efforts. Thirdly there is the responsive MNE. In c ontrast to the transactional MNE the third  posture is characterized by an active engagement into corporate citizenship behaviour. Finally the transformative MNE defines itself by taking responsibility to solve the problems in less developed countries in the world (Bartlett and Beamish, 2008). Applying Groupon to the MNE types, they can be classified as a responsive enterprise. Even though Groupon was criticized by some companies for being harmful to certain industries, a large amount of social responsibility has been shown. Having noticed the ability to raise money from groups of people, Groupon has established charity deals on their website. When customers buy one of those deals Groupon will match the amount and donate everything for example to the Red Cross (Campbell, 2012). 8. Conclusion The Internet deal company Groupon was established in 2008 and became a multinational company in a very short period of time. The corporate structure is made of the main functional managers in the corporate headquarters and geographical subsidiary managers in each location. The fast growing business can be characterized as transnational because it is pursuing a global strategy while having a great focus on being locally responsive. In order to expand as rapidly as Groupon did, the cooperation had to acquire businesses in some countries and start joint ventures in others. As mentioned before, in most European countries  this strategy worked out perfectly well. When Groupon decided to enter the Chinese market, however, some problems arose. Even though Groupon claimed to behave in a responsive manner they were reluctant to adapt locally responsive management practices in China. Consequently, the Chinese competition disabled Groupon from becoming market leader. To answer the problem statement if Groupon’s global strategy can successfully be implemented worldwide a conclusion can be drawn. While Groupon implemented the global strategy very successfully in the European market, there are some major difficulties when using the same strategy in China. To overcome those problems Groupon has to hire more Chinese managers in order to understand how the Chinese system works. Additionally, Groupon should use the  opportunity to learn from their venture-partner Tencent. Finally it is important for Groupon to analyze the competitive advantages of the competition in order to beat the local leaders by using their own methods. Coming back to Groupon’s overall strategy one can identify Groupon as a transactional company since it is actively engaging in corporate socially responsible activities. References Bartlett, C. & Beamish, P. (2011). Transnational Management. New York, USA: McGrawHill Bartlett, C. and Ghoshal, S. (1986) Tap Your Subsidiaries for Global Reach. Harvard Business Review. Bhattacharya, A. & Michael, D. (2008). How Local Companies Keep Multinationals at Bay. Harvard Business Review. Campbell, L (2012,November 18). How Groupon and LivingSocial Are Raising Millions for Charity Using Social Media. Socialmedia Today. Retrieved from: http://socialmediatoday.com Chan & Lee, (2011, February 28) Groupon Enters China, Teams with Tencent. Pedaily. Retrieved from: http://www.pedaily.cn Chao, L. (2012, August 24). Groupon Stumbles in China, Closes Some Offices. The Wall Street Journal. Retrieved from: http://online.wsj.com Cutler, K. (2010, May 7). Groupon CEO: Being in a band made my business rock. Social. Retrieved from http://venturebeat.com/ Deborah, C (2009, June 10). Virtual â€Å"tipping point† leverages group. Reuters. Retrieved from: http://www.reuters.com Donaldson, T. (1996). Values in Tension: Ethics Away from Home. Harvard Business School Press Lacrote , V. (2011, June 1). Groupon. Retrieved from http://digitalstrategies.tuck.dartmouth.edu Perlmutter H. (1969). The Tortuous Evolution of the Multinational Corporation. Columbia Journal of World Business Zhu, J (2011, November 4). 4 Mistakes Behind Groupon’s Failure in China. Tech In China. Retrieved from: http://www.techinasia.com

Medication Errors: Causes and Problems Reporting Essay

In the early morning hours of a 12-hour night shift, a nurse gives the patient an incorrect medication. The aspirin given was ordered for the patient in the next room. Medication errors are common in the hospital setting and especially by a nurse who is fatigued from working a 12-hour shift. In the situation described, should the nurse report the error or assume that the incident is not worth reporting since it was only aspirin? Surprisingly, according to Covell and Ritchie (2009) most medication errors are simply overlooked. â€Å"Nurses estimate that only between 25% and 63% of medication errors are actually reported† (p. 287). This estimation may seem low to some; however, other researchers estimate that the voluntary reporting of medication errors may be even lower. In 2009, Jones and Treiber found that less than 5% of medication errors are reported. Medications are typically ordered by physicians, but it is ultimately the nurses’ responsibility to administer the correct medication. There are several steps in this process and unfortunately when one step is altered, a medication error can occur. Preventing errors has been and continues to be an important aspect of nursing. I believe that in order to provide patients with the best possible care it is important for nurses to understand the common reported causes of medication errors, problems in reporting errors, and their role in medication prevention and reporting. Throughout this paper I will discuss the medication error issues described above and their importance and impact on the nursing profession. Topics discussed in this paper include the common causes of medication errors, perceived problems with reporting medication errors, and the importance of medication errors to the profession of nursing. Common Causes of Medication Errors Nurse Correlated Causes Even though preventative measures are taken, nurses are often still the cause of medication errors. Medication administration is a major intervention in nursing and when distracted or fatigued it is easy for simple mistakes to occur that normally would not have happened. The five rights are taught to all nurses at some point in their education as the basic technique to help reduce the occurrence of medication errors; however, many nurses fail to consistently and accurately utilize these measures. According to a study of 775 nurses conducted by Jones and Treiber (2010), 79% of participants believed that failure to follow the five rights of medication administration causes the majority of medication errors. Other nurse-correlated causes identified by Jones and Treiber (2010) include distractions and interruptions of the nurse, high patient nurse ratios, and lack of proper education along with fatigue and exhaustion. Types of factors that are directly related to nurses are considered internal causes of medication errors. However, literature shows that a combination of internal and external variables within the nursing environment contribute to medication errors. Unfortunately, actions by nurses and failures to follow common nursing protocols directly place the responsibility of medication errors on the nursing profession. Other Associated Causes It is also important to consider causes of errors other than the common internal causes directly correlated to nurses. A common external cause of medication errors is miscommunication. Miscommunication can occur in several different ways, but it often involves miscommunication from the initial prescription by physicians. Brady, Malone, and Fleming (2009) found that, â€Å"ineffective written and verbal communication in relation to prescriptions contribute to medication errors, particularly between nurses and physicians† (p. 692). Quite often, handwriting is not legible when prescriptions are written which results in medication errors. Since many drugs look and sound similar, it is easy for nurses to confuse handwriting. An example involves the medications, Vioxx, Ziox, and Zyvox. These medications sound very similar; however, they are used for very different treatments. Confusion by the nurse in writing a verbal order or in reading the order related to one of these three medications could result in immense consequences. In a survey of 983 registered nurses, Brady et al. (2009) likewise concluded that poor handwriting ranks among the top three causes of medication errors. In addition, there are many other factors that have been shown to contribute to medication errors including incomplete patient information, use of abbreviations, unavailable drug information, lack of appropriate packaging and labeling of meds, and environmental factors such as bad lighting. Understanding the cause of medication errors is an important step to decrease the occurrence and prevent future errors from occurring. Unfortunately, reporting of errors is still a large problem among the nursing profession. Perceived Problems with Reporting Barriers to Reporting Most nurses would agree that medication errors should be reported when they occur, yet medication errors are still underreported. A survey conducted by Jones and Treiber (2010) found that among nurses, â€Å"94% either strongly agreed or agreed that medication errors should be reported even when no harm resulted to the patient (p. 243).† Based on these findings, it is obvious that there is some inconsistency between actual occurrence and reporting. These findings also suggest that there may be barriers to reporting. Barriers to reporting can be broken down into four major groups according to research from both Koohestani and Baghcheghi (2009) and Covell and Ritchie (2009). The major groups are inadequate definition, fear, reporting process, and administrative process. Surveys conducted by Covell and Ritchie (2009), determined that fear ranked as the highest barrier to reporting since â€Å"participants indicated that they were most fearful of adverse consequences from reporting medication errors† (p. 289). Findings by Koohestani and Baghcheghi’s (2009) regarding barriers to reporting by nursing students also demonstrated fear as the strongest perceived barrier. Their research indicated that among nursing students the fear of, â€Å"decreasing evaluation score and introducing educational problems† along with â€Å"instructor’s reprimand† ranked as the highest barriers (p. 70). Surprisingly, both studies ranked the process of reporting, time to fill out proper forms and time to contact physician, as having the least impact on reporting. Increased Reporting The large number of medication errors and the lack of reporting suggest a need for change among the nursing profession. According to research findings from a study conducted by Drach-Zachavy & Pud (2010), â€Å"Approximately every third patient, on average, is exposed to some sort of deviation from the regulations when receiving medication. Yet, when nurses were confronted with these findings, they tended to dismiss their gravity and argued that they were trivial in the hospital context† (p.801). One way to improve the problem of medication errors is to draw attention to the issue. This can be done by increased reporting of errors among the nursing profession. However, due to the barriers of reporting described by nurses, establishing a concrete system to improve reporting has been difficult. Most nurses are aware that underreporting of medication errors does occur; however, they still fail to report. Education about proper reporting and awareness of the issue has been shown to increase reporting among nurses. Research shows that the major barrier to reporting medication errors is fear; therefore, reducing fear is a major component to increase reporting. Strategies to reduce fear include procedures to, â€Å"ensure that the processes used for reporting medication errors are respectful† (Covell & Ritchie, 2009, p. 295). It is also important for administrators and nursing managers to create a working environment conducive to reporting, one that encourages and supports reporting of errors (Koohestani & Baghcheghi, 2009, p. 73). Another strategy to improve reporting deals with the process of reporting. Although the process of reporting was considered the lowest barrier to reporting, research still suggests that improving this process can lead to better reporting of outcomes. Brady et al. (2009) suggest that electronic reporting systems improve reporting. This type of system improves the reporting process by making it easier. There is significantly less paperwork required, and the fear associated with reporting is significantly reduced. In order to change the lack of reporting of medication errors, the perceived problems with reporting need to be improved. The first step in this improvement starts within the nursing profession. Recognizing that nurses play an active role in preventing and reporting medication errors will help to decrease the number of errors. However, the distinct role of nurses in reporting medications errors needs further discussion. Importance to the Nursing Profession Role of Nurses The major role of nurses in the process of medication errors is first and foremost prevention. To help prevent errors, nurses must first recognize why medication errors occur and make an effort to eliminate the source. They must also strive to actively follow implemented guidelines and procedures. For example, consistently practicing the five of rights of medication administration has been shown to decrease the occurrence of errors. According to Brady et al. (2009) the major role of nurses is to, â€Å"take appropriate steps to develop and maintain competence in relation to all aspects of medication management† (p. 694). Education plays a key role in maintaining nursing competence; therefore, it is imperative to remain up to date with current knowledge, evidence based practice, and skills. Once a medication error occurs, the most important role of the nurse is to report. Brady et al. (2009) concludes that, â€Å"reporting medication errors is pivotal in improving the medication management process† (p. 694). Reporting is critical for nurses because it is a legal and ethical concern in the nursing profession. Nurses must consistently report all errors and also encourage other health care professionals to report as well. Overall, the most important roles among nursing professionals are to administer medications safely and accurately, report errors consistently, and adhere to the American Nurses’ Association Code of Ethics. Concluding Integration Reconsider the medication error discussed at the beginning of this paper. As the nurse in the situation, I might not have initially reported the medication error. I might have only informed the charge nurse of my mistake. After researching this topic, my views on medication errors and reporting have changed. I now have a greater understanding of the impact that an active nursing role can have in reducing medication errors. I believe that the implications of medication errors are important because medication administration is a key nursing role. Throughout my nursing career I will administer medications to thousands of patients. Unfortunately, I will likely be the cause of at least one medication error. According to the literature, medication errors do occur. Therefore, it is important to recognize causes so that steps can be made toward preventing medication errors. I believe that measures such as proper training and additional education are the best methods to preventing medication errors. It is also very important for nurses to actively practice safe medication administration by taking a â€Å"back to basics† approach and utilizing simple techniques such as the five rights. Furthermore, I believe that the best way to improve reporting is to reduce the fear surrounding reporting. One way to do this would be to initiate online reporting systems. In my future nursing practice, it will ultimately be my responsibility to administer the correct medication to patients. In order to provide patients with the best outcomes, it is important for nurses to understand the implications of medication errors. References Bradley, A. M., Malone, A. M., & Fleming, S. (2009). A literature review of the individual and system factors that contribute to medication errors in nursing practice. Journal of Nursing Management, 17, 679-697. doi: 10.1111/j.1365-2834.2009.00995.x Covell, C. L., & Ritchie, J. A. (2009). Nurses’ responses to medication errors: Suggestions for the development of organizational strategies to improve reporting. Journal of Nursing Care Quality, 24, 287-297. doi: 10.1097/NCQ.0b013e3181a4d506 Drach-Zahavy, A., & Pud, D. (2010). Learning mechanisms to limit medication administration errors. Journal of Advanced Nursing, 66, 794-805. doi: 10.1111/j.1365-26482010.05294.x Jones, J. H., & Treiber, L. (2010). When the 5 rights go wrong: Medication errors from the nursing perspective. Journal of Nursing Care Quality, 25, 240-247. doi: 10.1097/NCQ.0b013e3181d5b948 Koohestani, H. R., & Baghcheshi, N. (2009). Barriers to the reporting of medication administration errors among nursing students. Australian Journal of Advanced Nursing, 24 (1), pp. 66-74. 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Bilateral Trans-Scaphoid Perilunate Fracture Dislocation

Bilateral Trans-Scaphoid Perilunate Fracture Dislocation BILATERAL TRANS-SCAPHOID PERILUNATE FRACTURE DISLOCATION OF THE CARPUS. (CASE REPORT) Abstract: Trans-scaphoid perilunate fractures-dislocations are rare lesions. They occur in a high-energy trauma. The concomitent lesion of both wrists is exceptional. We report a case of bilateral trans-scaphoid perilunate dislocated wrist fracture in a 21-year-old man. The dislocation was treated by opened reduction and fractures by internal fixation. The functional outcome was satisfying after two years of follow-up. Introduction: Trans-scaphoid perilunate fracture-dislocations are relatively uncommon. 1 These are the most common form of the complex carpal dislocations 2,3 causing marked disruption of the carpal anatomy. Time from injury to treatment (delay in treatment), anatomic classià ¯Ã‚ ¬Ã‚ cation, and open or closed nature of the injury are the major factors that determine the clinical outcome in trans-scaphoid perilunate fracture-dislocations. 4,5 Late presentation combi ned with missed diagnosis often causes critical delay in the treatment of these injuries. If the acute phase is missed, then some authors recommend alternative procedures such as wrist arthrodesis and proximal row carpectomy which are relatively mutilating surgeries that leave a significant functional deficit. 4,6,7 The acute phase is defined as the first week after injury, whereas the delayed phase is the period between the seventh and 45th day and after 45 days the injury is said to be in the chronic phase. 4 We report the case of a patient who referred to our department two weeks after the initial trauma with bilateral dorsal trans-scaphoid perilunate fracture-dislocations of the carpus. Anatomic reduction, percutaneous pin fixation of the carpus and fixation of scaphoid fractures of both wrists were performed by opened reduction under fluoroscopic control. Presentation of case: A 21-year-old, right-hand-dominant man sustained an isolated injury to his both wrists after a fall from a height of approximately 4.5 m. The carpal injuries of both wrists were missed initially and both wrists had been bandaged for two weeks after the trauma. He was referred to our department two weeks later with increasing pain. The patient reported that he fell on his outstretched hands with both wrists in extension. Both wrists were deformed in marked dorsiflexion, painful, swollen, and tender to palpation, with limitation of movement. The patient complained of paresthesia in both of his hands. On physical examination, meticulous cutaneous sensory mapping was performed of both hands to determine the area of decreased sensation. This was done with the use of the sharp end of a paperclip while applying a constant pressure. This revealed minor numbness in the median nerve distribution area of both hands (thumb, index, middle finger, and the radial side of the ring finger). The two-point discrimination was normal on both sides. The mobility of the fingers was normal but pai nful, and there was a slight decrase in grip strength of both hands. Motor power in abductor pollicis brevis and opponens pollicis muscles was full (5/5) on both sides. The Tinel’s sign was negative over the carpal tunnel in both sides. The findings of the patient led us to think that there is not any condition like acute carpal tunnel syndrome due to fracture-dislocation.We thought that the numbness of the patient was due to temporary traction injury of the median nerve caused by dislocation on both sides. The vascular status was normal on physical examination. Study of the anteroposterior, oblique and lateral plane radiographs showed that the patient had bilateral dorsal trans-scaphoid perilunate fracture-dislocations of the carpi ( Fig. 1 ). According to the classification described by Herzberg et al., the fracture-dislocations were trans-scaphoid as path of trauma and Stage 1 as displacement of capitate on both sides. 4 The patient was informed about his pathology and a dvised to undergo surgery. If possible the patient’s preference was closed treatment. Therefore, we initially recommend closed reduction and percutaneous fixation. However, if this was not possible or in the situation of a failure we informed him about the open procedure. Under general anesthesia, a closed reduction was attempted with traction manoeuvre described by Tavernier 8 under fluoroscopic control. The reduction was not satisfactory,we opted for the open reduction by posterior approach.After anatomical reduction was achieved, intercarpal fixation was applied to carpal bones using three K-wires. The first K-wire was applied to scaphoide- lunate, the second K-wire was applied to- lunate-triquetrum and the third K-wire was applied to capitatum-lunate. After the procedure, reduction and fixation of carpal bones was confirmed under fluoroscopy. The same procedure was repeated for the other wrist. We noticed that the scaphoid fracture was reduced spontaneously along with t he reduction of the carpal bones. So we performed   fixation of the left scaphoid fracture using a 3.5 mm mini Acutrak headless compression screw through the fracture line from a dorsal-proximal to a volar-distal direction. Intraoperative fluoroscopic control confirmed anatomic reduction of the scaphoid fracture.. Finally, standard radiograms were obtained and both wrists were immobilized in a short arm cast ( Fig. 2 ). The patient noted complete relief of symptoms the day after surgery. The pain and the paresthesia that the patient complained preoperatively was relieved dramatically and the function recovered. The post-operative period was uneventful. Four weeks after surgery, the casts and the K-wires were removed. New casts were applied for another 4 weeks when union was visible on radiographs. The casts were removed eight weeks after surgery. There was radiographic evidence of union of the scaphoid on the left side, but on the right side radiography revealed delayed union of the scaphoid. The patient subsequently underwent 3 months of intensive range-of-motion and muscle-strengthening exercises. Intermediate clinical and radiographic examinations were performed 6 and 12 months after surgery. At the two-year follow-up, the radiographs showed normal carpal bone relationships on both sides, complete union of the scaphoid on the left side(Fig.3). Wrist motion on the left side was excellent with 70 ° of palmar flexion, 80 ° of dorsiflexion, full supination and pronation, full radial and ulnar deviation. The right wrist could achieve 60 ° of palmar flexion and 70 ° of dorsiflexion, full supination and pronation, but with a mild decrease in radial and ulnar deviation. The grip strength of the right hand was 30 kg while that of the left side was 38 kg, measured with the Jamar dynamometer (J.A. Preston, Jackson, Michigan) . Fig.3 Right wrist and Left wrist anteroposterior and   lateral view after two-years. At the two-year follow-up, the patient was symptom-free concerning median nerve functions. The patient was free of pain on the left side. On the right side there was mild pain with wrist motions due to non-union of the scaphoid.The patient was able to perform activities of daily living and he had returned to all of his previous activities. The functional outcome was good on the left side, with a Mayo wrist score of 80/100. The functional outcome was satisfactory on the right side, with a Mayo wrist score of 65/100. Radiographs of both wrists revealed no evidence of radiocarpal or midcarpal arthritis. No osteonecrosis of the lunate or the scaphoid was evident. The lunate position was correct, without signs of instability. Anatomic relationships of the carpal bones were maintained. Discussion Carpal fracture-dislocations are rare injuries; thus their classification and treatment are rather difficult. Osseous variants of this injury are common; the trans-scaphoid perilunate fracture-dislocation constitutes 61% of all perilunate dislocations and 96% of fracture-dislocations. 4 The trans-scaphoid perilunate fracture-dislocation is an uncommon injury sustained due to force transmission through a hyperextended wrist. 9,10 These injuries may be easily overlooked or misdiagnosed. 4 After a delay in diagnosis of several weeks or months, the clinical prognosis is poor compared with injuries that are treated acutely. 11 According to the classification described by Herzberg et al., we initially diagnosed our patient in the delayed phase. 4 Regarding the literature, the management of such injuries in case of delayed presentation is rare. 12,13 Dislocation in this region requires rapid realignment, as untreated perilunate dislocation will lead to serious secondary damage. 13,14 Perilunate fracture-dislocations are high-energy injuries, produced by wrist hyperextension. 3,15 There is disruption of the palmar capsuloligamentous complex, starting radially and propagating through the carpus in an ulnar direction. 3,15 This dislocation takes a transosseous route through the scaphoid resulting in a trans-scaphoid perilunate fracture-dislocation. 10 In trans-scaphoid perilunate dislocations the fractured scaphoid is the initial destabilizing factor of the carpus. 16 Regarding the literature, we believe that the mechanism of injury in our patient was fall from a height on the outstretched hands. Treatment options currently used for perilunar instability patterns include closed reduction and cast immobilization, closed reduction and percutaneous pinning, and open reduction. As the awareness of the anatomy and biomechanics of these injury patterns has evolved, authors have tended toward treatment approaches that attempt to repair the injured intrinsic and extrinsic carpal ligaments, that is, open techniques. 4,8,11 Most authors agree that closed reduction is the initial treatment of choice for trans-scaphoid perilunate fracture-dislocations. 2,8,17 In addition, treatment often r equires intercarpal fixation within the proximal carpal row. Most authors have agreed that the key to a good clinical result in the management of trans-scaphoid perilunate dislocation is the anatomic union of the scaphoid and the restoration of proper alignment of the carpal bones. 17 In this case, we prefer a opened reduction and intercarpal fixation with K-wires, as well as screw fixation of the scaphoid, because we didn’t achieve a good fracture alignment after closed reduction . Gellman et al. suggested that anatomical reductions of the scaphoid, as well as the mid-carpal joint, and the restoration of the articular surface of the lunate are the most important aspects determining the prognosis. 11 An open reduction further increases the risk of a scaphoid blood supply interruption, whereas percutaneous screw fixation of the scaphoid minimizes this risk. 3,17,18 In addition, a rigid fixation with a percutaneous screw can also reduce the immobilization period and allow for an earlier rehabilitation. Acutrak screw fixation allows earlier discontinuance of the cast than K-wire fixation. In our case, the range-of-motion exercises of the wrist were started earlier after the initial operation. The nonunion rate was relatively higher in the series that were treated by closed reduction. 19,20 In our case study the radiographs obtained two years after surgery revealed a non-union of the right scaphoid. We believe that the delay in treatment and maybe the malrotation of the scaphoid that we overlooked on the initial radiographs led to the interruption of the blood supply which was possibly responsible for the non-union of the scaphoid. Despite the non-union of the scaphoid, the functional outcome of our patient was satisfactory, with mild pain, good range of movement and good grip strength. Similarly, Herzberg et al. 4 reported that unsatisfactory radiographs did not equate to a poor clinical outcome. We planned to perform open reduction and internal f ixation with grafting for the non-union of the right scaphoid. Conclusion As the injury have led bilateral dorsal trans-scaphoid perilunate fracture-dislocations,  we therefore recommend minimally invasive techniques if an anatomical closed reduction and  a percutaneous rigid fixation of the scaphoid is achieved on the intraoperative evaluations.

Financial Mangement Essay Example | Topics and Well Written Essays - 750 words

Financial Mangement - Essay Example electronic stock market. "With approximately 3,300 companies, the NASDAQ lists more companies and, on average, trades more shares per day than any other U.S. market" (NASDAQ, 2006, n/p). Therefore, the AMEX is a tangible physical entity, it occupies its own building and has physically designated space for trading - trading floor; has specifically designated members and an elected governing body. On the contrary, the NASDAQ, which means National Association of Securities Dealers Automated Quotation System, is a nebulous, intangible organization built up around the computerized system. The American Stock Exchange, according to its own definition, is "an auction market where prices for a diverse array of products - stocks, options, exchange traded funds (ETFs) and structured products - are determined by public bids to buy and offers to sell". The major characteristics of the trading process at the AMEX include: centralization of the order flow on the trading floor, priority given to the public orders, and execution of the orders by price and time sequence regardless of size or source. (AMEX, 2006, n/p). Like the AMEX, the NASDAQ operates as an auction market, but it has its own peculiarities: no physical trading floor is available and the orders flow goes solely through the automated quotation system. Additionally, unlike the AMEX specialists the NASDAQ dealers often maintain an inventory of the stocks that are traded less frequently. The AMEX system includes specialists, registered traders and floor dealers: "Trading in every Amex security is overseen by a specialist stationed on the trading floor . . . Specialists serve as facilitators, employing their extensive knowledge of the market in a security to bring together buyers and sellers, and helping them trade directly with each other. This skill is particularly important when large blocks of securities are brought to the floor" (AMEX, 2006, n/p). On the contrary, at the NASDAQ over-the-counter market trading in a particular security is not concentrated in the hands of the one particular specialist, and there is no monopoly, as the result. Any of the dealers interested in trading in this security can handle the orders on it. Trading at the AMEX can be performed in two ways: the orders can be processed either automatically, or manually. The automatic processing uses various systems as follows: "Member firms may route orders directly to the Exchange's trading floor through the Common Message Switch (CMS). After performing specific validation checks, CMS routes the orders to the Amex Order File (AOF), which retains order details and directs orders to the New Equity Trading System (NETS), Amex Options Display Book (AODB), Automatic Execution (Auto-Ex), or the firm's floor broker through the Booth Automated Routing System (BARS)" (AMEX, 2006, n/p). The orders may also be submitted manually by phone call to the broker or with help of a member firm's proprietary application: "In both cases, immediately upon receipt, the floor broker will "systematize" the order by entering it into the Amex Order File using the order entry feature of the Booth Automated Routing System (BARS) terminal. Once "systematized" these orders may be printed and

Reading Response Essay Example | Topics and Well Written Essays - 1250 words

Reading Response - Essay Example Global Context According to studies by scholars it is evident that there has been a global shift with regard to immigration integration. Back in the early 1970s there had been growing support for multiculturalism but however in the 1990s and 2000s the shift has become evident and people are proving to move away from multiculturalism and rather taking to cohesion and integration (Dekkers 189-205). We could use the example of Netherlands who at some point adapted one of the best forms of multiculturalism in the whole of Europe, and that was in the 1980s. However they started dropping the policies bit by bit in the early 1990s up to when it seemed impossible in the 2000s when the entire system was entirely dropped and came to be replaced with very harsh policies which can be termed as not far from old fashion assimilation. Multiculturalism has experienced no form of success ever in the Europe and with it has brought many serious consequences. The only way to handle this is by insisting to new comers to fully subject to their new identity. They should fully embrace the Dutch or British in terms of their social lives and if at all their ethnic identities are to be preserved then they should not be done so in public. The European verses the Canadian Model: Relationship and impact In Europe multiculturalism has been attributed to several ills such as isolation of immigrants, residential ghettoization discrimination against ethnic, increased stereotyping and others as stated in the case. However the perception of multiculturalism playing role to all these can be put up for debate since there exists no tangible evidence showing that the ills named above are more prevalent in countries who failed to adopt the multiculturalism policies (Hyman 1-14). Some views have been aired by several commentators’ and they can be summarized to reveal that multiculturalism has drastically failed in Europe leading to greater stereotyping, prejudice and greater segregation. Many Ca nadians also think that they may be immune to this issue but it is evident that this same issue is gradually emerging in Canada. The only remedy either being the abolition of the multiculturalism or post-cultureless. Canada had adopted an assimilationist approach to ethnic groups that carried the hope of having the immigrants to fully assimilate to the pre-existing mainstream culture and still hoped that with time they would be fully absorbed and become indistinguishable. In around 1971 there was the adoption of the multiculturalism policy and the main goals included assisting all Canadian cultural groups having demonstrated full desire and effort to continue to develop a capacity to grow and offer contributions to Canada, to promote creative encounters among all Canadian groups and assisting immigrants to fully acquire the rights to participate in the Canadian society by learning at least one Canadian official language. There is an area where multiculturalism seems to overlap and t his concerns racism and discrimination. Although the aboriginal people are not counted as visible minorities, they are still clear victims of racism. Within the category of visible minorities there are important differences in the nature of the nature of the types of racism they encounter.is is also believed that anti-black racism is far much different from the type of racism faced by the visible minorities. If we tried to take a look at the statistics

The Impact of Global Recession on Small Businesses Dissertation

The Impact of Global Recession on Small Businesses - Dissertation Example Prior research done by John Kitching mentioned that small businesses are treated as highly susceptible to external shocks, such as recessions, with firm performance declining in line with GDP. Small firms possess limited resources, customers and product lines across which to spread their risk – all of which restrict a firm’s capacity to withstand competitive pressures in adverse macroeconomic condition. They are also much more likely to cease trading than larger enterprises. Falling GDP at the macro level causes performance decline at the micro level and, in severe cases, business closure. Many economists have now been predicting the world global recession since the 1930s. Such grim warnings discovery spending by households and businesses, depressing output even more. America, Britain, the Euro area and Japan are almost certainly already in recession according to the popular rule of thumb of two successive quarters of falling GDP. In an updated World Economic Outlook, published on Nov 6th 2009, the IMF predicted the world GDP would fall to 2.2% in 2009, based on purchasing power parity weights, from 5% in 2007 and 3.7% in 2008. GDP is a measure of the total value of production of goods and services by all resident producing units in an economy during an accounting period, which is usually one year or one quarter. While recessions involve falls in GDP, they are namely characterized by rising unemployment. Fear of a long recession stems not just from the distressing developed country figures.

External influences on career decision Essay Example | Topics and Well Written Essays - 3750 words

External influences on career decision - Essay Example A few years down the line, the child starts asking the same question, â€Å"When I grow up what will I be?† like the words of the famed song â€Å"Que Sera Sera.† Today a child sees a toy engine and wants to be an engine driver, tomorrow he sees the smart firemen on their shiny fire engines and he wants to be a firefighter, the next day he sees Superman on TV and wants to be him. Even when the child visits a doctor he immediately wants to be him. Every day he wants to be something new, something wonderful, something adventurous. Gradually, as he grows into a teenager, he wants to do something great like to become an astronaut flying into space, a scientist making the most important inventions, and so on. Then the time comes when he has to actually make the decision. What is he going to do? It is a very difficult question. Very few have an answer ready, though one has mulled over it a million times in the past. Let us consider these lucky ones or smart ones who have alre ady decided what they are going to do with their lives. Who are they? We can call them the lucky ones because they have recognized their innate ability, their talent. These are the ones who have been born with some extraordinary skill and have been able to identify this talent or skill either on their own or with the help of others. It could be a great voice, ear for music, a talent for dancing, sporting, mimicry, acting, painting, or sculpting. They are the geniuses. They know what they want to do with their life and that becomes their career choice, or more accurately their passion in life. This is more of an internal influence on career choice. There is no confusion. He simply aims to reach the pinnacle of excellence in that field. These are the extremely talented people who are lucky to have identified their talents. Hence, we can say that they fall into the category of the chosen few. The next category of people being those who are less talented but extremely interested in spec ific fields – these fields mostly include the arts like music, painting, etc., or any specific sporting activity. These people are passionate about their interests and don’t mind working really hard to groom themselves to acquire success in their field of interest. This again is an internal influence. So, an internal influence can be defined as â€Å"originating within the individual† and the main motivation here is individual satisfaction† (Duffy and Dik, 2009). External influences are those â€Å"which originate outside the individual† and the main motive is to satisfy this â€Å"external factor or criteria.† There are too many external influences on an individual’s career choice. It is not possible to list all of them. But in this research we will make an attempt to study the major ones. First of all the external influences are of two kinds – those that motivate and those that restrict. Motivating factors could be the people around you, your needs, and your inspirations. Constraints could be your belonging to a certain race or gender, living in a certain geographic location, the resources at your disposal (financial or otherwise). But, as we can see, though most of them are not within ones personal control, all these factors do play a major role in the choice of career. Family Most studies show that the family and the immediate social environment play a major role

Marketing Research assignment 5 Example | Topics and Well Written Essays - 250 words

Marketing Research 5 - Assignment Example se logarithms to envision ROI (return on investment .Mathematical difference refers to the percentage acquired after computing the difference between your merchandise cost and the selling price. The larger the difference for instance 70%, the less profit gained because of competition from other companies. Basically, managerially important difference refers to variation in preferences used by company management concerning price and output decisions, choice and techniques of production, demand estimation, investment decision, and long run production decision (Vikram 8). These differences in management may or may not lead to adjustment in changes and invention of new ideas. Organizations that recruit managers with different qualities and capabilities based on different approache to situational factors are at high chances of profiting because of the divergent ideas. On the other hand, statistical significance is a test that determines if marketing research reports are significant or incidental. They include chi-square tests, t-tests, and z-tests which studies relationship between two categorical variables. The level of significance used is 0.10 or 0.05. A result with level of significance of 0.1(90%) indicates statistical significance. To determine if its incidental you check the sample size and determine the margin of error; P (Z=

Tell me about the relationship of religion and science Essay

Tell me about the relationship of religion and science - Essay Example This cannot be denied that both religion and science contradict each other in many important ways. There has been fierce completion between the two since the time of Galileo. This essay aims to illustrate the extent to which this statement could be held true that religion and science are mutually exclusive. To achieve this end, religion and science will be compared to each other on different levels discussed in following section of the essay. It will be explored why science and religion appear to be at odds with each other and if there is any chance of creating harmony between these two entities or not. It is important to mention the name of Ian Barbour when exploring the relationship between religion and science. This is because Barbour is an expert of demonstrating the position of religion in an age of science. He has explored many troubling issues in science and religion. He also demonstrated how science promotes secularity which is inhibited by religion. Religious societies do everything in their capacity to uphold religion and smother secularity. It is not as if they disregard science, rather they accept it. But, too much science can be dangerous for religion as one of the most important scientific concepts like evolution questions the religious significance of Adam and Eve. According to Barbour, there are four ways of relating religion and science namely conflict, independence, dialogue, and integration. Each of these ways helps to understand the relationship between religion and science. On a level of conflict, it has to be understood that there are many conflicts between cl assical religious dogmas and modern science. Differences are not respected by either school of thought. Modern science swallows religion and religion does the same to science. Barbour stresses that fight between the two groups â€Å"can be avoided if they occupy separate territories† (Barbour). On a level of

Impact of Changes on Target Companys Structure Assignment

Impact of Changes on Target Companys Structure - Assignment Example Jones postulates that the organizational structures are two in kind, namely: mechanistic structure and organic structure (209). Wei, Liu and Harden postulate that the degree to this subdivision of jobs is the work specialization in the organization (19). Securing and Goldbach refers to the term centralized as â€Å"the concentration of authority and responsibility for decision making in the hands of managers at the top of an organization’s hierarchy† (214). In other words, Kumar and Bhat describe the term centralization in an organization as â€Å"the degree to which decision making is concentrated in a single point† (346). The degree of decision making concentrated in numerous points shows decentralization in an organization (Applebaum & et.al., 2008). The Target Company has a mechanistic organizational structure. It has a high level of specialization which allows it to divide the jobs into significant groups. The work specialization requires that each person should be placed according to his/her qualifications and experience to ensure a maximum level of specialization in their work. Each department has been allotted different work that is not given to the other department in the organization (Ouchi, 1977). The answer to this question is that all stores of the company are centrally controlled through a centrally located center for every region. Target Company has a mechanistic structure that allows it to have a centrally located center that has the highest degree of decision-making power to control all the stores located within its jurisdiction. The answer to this question is that the change in the company structure through the incorporation of a grocer sector in Target Company will positively impact its vertical and horizontal aspects. Previously, the Target Company had a focused company strategy to have 5 self-managed teams (an i.e. horizontal aspect of the company structure). Furthermore, the horizontal aspect of the company structure  included decision making through consensus and voting. Dries and Swinnen argued that vertical and horizontal spillover effects produce improved quality of product and significant growth of small and medium suppliers (1525).  

What Type of Parent I Will Be Essay Example for Free

What Type of Parent I Will Be Essay To be able to decide what type of parent I will be and discuss my issues I feel I may come across when the time comes; I first need to decide what style of parent I feel I will have. In order to do this I have researched Dr. Diane Baumrind’s three styles of parenting; permissive, authoritative, and authoritarian. (Baumrind, 1967). All three of these styles vary dramatically but the one I feel I would fit into the most would be the authoritative style of parenting. By Dr. Baumrind’s definition that is: a parent that attempts to direct the child’s activities but in a rational, issue-oriented manner. The parent encourages verbal give and take, shares with the child the reasoning behind her policy, and solicits his objections when he refuses to conform. Both autonomous self-will and disciplined conformity are valued. Therefore the parents exert firm control at points of parent-child divergence, but does not hem the child in with restrictions. The parents enforces their own perspective as adults, but recognizes the childs individual interests and special ways. The authoritative parent affirms the childs present qualities, but also sets standards for future conduct. They use reason, power, and shaping by regime and reinforcement to achieve their objectives, and does not base their decisions on group consensus or the individual childs desires. (Baumrind, 1967). When a person becomes a parent they will truly discover what style of parenting they will have. However, until that day comes, I chose the style of authoritative parenting based on how my parents were and how they raised me to be. I feel both of my parents fit into this category, therefore I have a strong background with this style. While I have been exposed to all three styles of parenting from watching my friend’s parents, my own brother as a parent and now my step mom as a parent, I feel the authoritative style is the one that fits my values, beliefs and issue concerns the best. For example, my step mom, who I feel has a very permissive style of parenting, doesn’t have much â€Å"control† over my step brother. There is one movie in particular that I feel displays the permissive style of parenting very well. Problem child 1 and 2. The child is adopted so the father wants the child to be as happy as possible and in turn the parent gets walked all over. My step brother is a 12 year old boy, who is a good child who listens for the most part has a terrible diet. This is because my step mom wanted to be his friend first and a parent second. She does not like conflict so she allows him to each the sugary starchy foods instead of enforcing healthy choices. On top of that his idea of exercise is playing video games. This may not present health issue at this very time, however, my concerns arise when he is older. What type of choices will he make diet wise, exercising and over all what type of lifestyle will he have? My mom on the other hand, fully enforced eating fruits and veggies at a young age and always made sure my two brothers and I played outside and did extra-curricular activities to get healthy amounts of exercise. Today at 25 years old, I can probably count on one hand the number of foods I don’t like. I also thorough enjoy exercising. A healthy diet and exercise are extremely important for the growth and development of any child. This brings me to one of my issues I am concerned with when I become a parent. Will my child enjoy and eat the healthy choices I make for them. I feel this all begins with infants. After reading a couple journal articles from an online nursing search engine breast feeding is where it all begins. I find it interesting that some mothers would choose not to breast feed. Breast feeding provides multiple benefits for both the mother and the child. The breast feeding processes represents an intricate bonding between the mother and child that is far greater than just nutrition. It creates an immune system, aids in building brain function, developing socialization and establishing long term health. (Godfrey. J Lawrence, R. 010) I feel this relates to one of my issues with being a parent because nutrition of my child is my most important concern. According to our textbook, nutrition is especially crucial in the first two years for brain and body development because they grow so rapidly. An infant’s energy needs are twice that of an adult. Breast feeding provides the correct balance of fat and protein, helps ensure healthy physical growth and protects against disease. (Berk, 2010). According to Piaget, infants think with their eyes, hands and ears. Therefore, I would want my child to be developed to the max potential and not held back for nutritional reason. Erickson’s theory of basic trust vs. mistrust in the first year affect the way a child socializes later in life also related to will the child be into physical activities. The trusting infant expects the world to be good and gratifying, (Berk, 2010) so the child feels confident about exploring and venturing into new things. I feel this related to children wanting to be involved in different activities with other children. The mistrusting baby cannot count on the kindness and compassion of others and therefore withdrawals themselves and protects themselves from other people and activities with other children (Berk, 2010). I feel perhaps this may relate to my step brother and why he plays video games all the time and is glued to the television, instead of playing outside trying to make new friends. As the child begins to grow and develop into the next phase of early childhood I will be faced with new concerns but still centered on nutrition. In this stage the body growth begins to slow down but the brain development from ages two to six increase by about seventy percent of its adult weight to nighty percent. In early childhood the skeletal part of the body also begins to change. Between the ages of two and six years old there is approximately forty five percent new growth centers, in which cartilage becomes bone. (Berk, 2010). According to an article posted in a sports medicine journal, the relation to calcium and bone development during this time is crucial. There is a correlation between calcium intake, physical activity and bone development at this stage. Although there are varying factors such as genetics, age and body type there is still a positive influence. This article discusses the importance of children in the early childhood to adolescent stage to have a calcium intake of 1000mg/day or more of calcium to help build stronger bones and increase the development of the femoral head. There are many different sources of calcium such as dairy products; most cereals have some amount of calcium as well. I feel that it’s important to give children in this stage a multivitamin as well to ensure the child is getting enough calcium. At this stage many children become picky eaters and are very unpredictable. They can like a food one day and the next say they hate it. This is another reason why I feel it’s important to give children in this stage a multivitamin. I also feel that introducing a wide variety of different food to children at this time helps. Being an authoritative style of parenting I would have my child try everything at least once, encouraging these new foods and if they didn’t like it tell them they can always spit it out. This is a major developmental stage that I feel sets the tone if your child will be or become obese. This is an increasing issue with children today. Moms are becoming more busy with work and aren’t stay at home moms anymore. It’s quicker and easier to just stop at McDonalds and get your child a happy meal than it is to come home and cook a healthy meal. I do feel fast food restaurants are trying to incorporate healthy choices with children’s meals but in my opinion fried chicken nuggets are still fried chicken nuggets even if they come with apples. The apples are a healthy choice however those come with sugary caramel sauce to dip them in. There are many consequence of obsess children. Diabetes in children is one of the most common major issues. Diabetes type two is the type of diabetes that was once an adult disease has increasing become more common in younger children. Many of the signs and symptoms are asymptomatic I feel many parents over-see what is really going on. There are many risk factors for early onset associated with type two diabetes which includes: overweight and obesity, especially in the abdomen area, high or low birth weight and rapid increase of weight in early childhood, physical in activity or sedentary lifestyle (playing video games all the time) as well as consuming foods that are low in fiber and high in fats and sugars. (Schub. T Caple, C. , 2011) The sad part is many of this risk factors are modifiable but too many parents reward with sugary fatty treats. Unless the parent is health conscious it is very difficult to change these issues. The other problem that arises with this is many times parents see their child as being perfect and over-see what is really going on. In this stage of development according to Piaget the child has moved from the sensorimotor to the preoperational stage. This spans the years from two until approximately seven years old. The major difference in this stage is symbolic or representational activity. A major example of this change is make-believe play. Piaget believed that through this type of play children are practicing and strengthening newly acquired representational schemes. (Berk, 2010) I agree with Piaget’s views. I feel it’s important for children to have make-believe play but only to a certain extent. As a parent I want my child to be more interested in playing with other children in more real activities opposed to always want to play make-believe by themselves. An example I feel is acceptable is when girls want to play house together with dolls or babies. I feel I control this situation as a parent by encouraging interactive play with other children with play dates. Exercise in this stage is also very important. Involving your child in activities outside of school helps the child develop social skills by having to interact with new children in different situations. As long as this is followed by positive reinforcement by the parent I also feel this helps build confidence in the child. Vygotsky’s theory of sociocultural is another major factor in this developmental stage. Language at this stage is the important factor in Vygotsky’s theory. Children begin to talk to themselves much in the same way they do with fellow students. This increases their ability to think and their ability to control their own behavior. (Berk, 2010). According to a study published in a developmental psychology journal there is little correlation between private speech and problem solving process. Approximately half the subjects had private speech and those who did, did not utter very much. The article also discussed within a Vygotskian framework, private speech will tend to co-occur with failure in cognitive tasks because both private speech and the likelihood of failure increase with task difficulty. We also learned that in this stage children begin to remember. It’s not that they are just now building a memory; they now have the language skills to describe their memories. We had a discussion board regarding our earliest autobiographically memory and as the textbook stated, no one could really come up with a memory early than three years old. This is explained because we didn’t have an understanding of language to describe what we were experiencing. The third developmental stage that I feel I will have the most parenting issues or concerns is now the adolescent stage. I can only hope that by this point in time I have taught my child to make good nutritional choices and I have engaged them in other activities so they are confident in socializing and want to have active lifestyles opposed to sedentary. I feel this is going to be the most difficult stay to deal with. Now I am dealing with hormonal changes which create physical and mental changes but now I will also have to deal with social changes and sexual activity. During the adolescence stage children go through puberty. This can cause many different physical changes. I hope that I can teach my child to always have a positive body image of them. I feel by keeping them active will help with this issue. If I have a girl I am going to have to be concerned with eating disorders and the possibility of becoming pregnant. I feel the only way to have control over these issues is just being open with my child or children and make them feel comfortable talking to myself or husband (hopefully present) about anything as well as taking responsibility in my own hands to make sure my children are properly educated about things like safe sex and sexually transmitted diseases. I don’t want to be a naive parent and think â€Å"oh my child would never do that! † I know I was there age at one point and they are going to do whatever they want to do. I will also teach my children about peer pressure to help prevent them from making mistakes because of it. Through this entire paper I feel I have learned that parenting is no easy task. A lot of things are learned by trial and error. Also, just because these are my views I hope that I have a husband who shares the same parenting style otherwise we ourselves will be in a pickle. I don’t want my household to have one good parent and one bad parent I want us to be equal and on the same playing field. I want my husband and I to work as one, which comes down to communication. I also feel my parents raised me with many skills I with use while parenting. All I can do is try my hardest to teach my children the same ways and hope they are responsive to me and respectful and understand one day they will be responsible for the same thing.

The abolitionist Essay Example for Free

The abolitionist Essay â€Å"My free life began on the third of September, 1838. On the morning of the 4th of that month, after an anxious and most perilous but safe journey, I found myself in the big city of New York, a free man, one more added to the mighty throng which, like the confused waves of the troubled sea, surged to and fro between the lofty walls of Broadway. † (Douglass, 1962) Frederick Douglass, indeed, was well prepared to enter the abolitionist crusade in August 1841 as a lecturer for the Massachusetts Anti-Slavery Society. Concerned with any publicity that could expose him to discovery and arrest by his master, In August 1841, after delivering his first speeches before a predominantly white abolitionist audience at Nantuckets Atheneum Hall, Douglass was invited to become a lecturer for the Massachusetts Anti-Slavery Society. Douglass at first declined the invitation, but John A. Collins, general agent of the Massachusetts Anti-Slavery Society, refused to take no for an answer, and Douglass reluctantly accepted his request. â€Å"His preparation began during his twenty-year enslavement, and by the time he escaped from slavery in 1838, he had gained valuable experiences that contributed to his understanding of rhetoric and his identity as an orator. † (Lampe, 1998, pg 1) Frederick Douglass It is no surprise, then, that people began to question whether Douglass had ever been a slave. How, they wondered, could anyone who had been a slave and deprived of a formal education speak so eloquently and conduct himself with so much dignity and grace on the platform? During all these activities Douglass demonstrated his deep and abiding  commitment to the antislavery movement. He weathered unfriendly audi ¬ences, health problems, inclement weather, and assaults on the abolition ¬ist cause. The conventional view of Douglass at this stage of his career is that he confined his remarks to a simple narrative of his slave experiences, that he was very much under the wing of Garrison and the Massachusetts Anti-Slavery Society, and that he adhered strictly to Garrisonian doctrine. Everywhere he went; he attracted large and enthusiastic audiences and infused excitement into the crusade against slavery. Douglass stated he was always ready to speak on slavery,  and added, in reply to some one who desired to have his name and that of the preceding speaker announced, and that he was afraid we cared too much to know who it is that speaks, instead of weighing well what was said. Douglass traveled extensively throughout the Bay State delivering his antislavery message. His rhetorical activities included impressive speaking performances at county, state, regional, and national antislavery meetings, as well as a solo lecture tour of Massachusetts. In addition, he played a crucial role in a lecture tour of Cape Cod, in which he traveled with William Lloyd Garrison, Henry C. Wright, and George Bradburn. In all of these activities, Douglass strengthened his standing as a powerful voice in the struggle for immediate abolition. A number of historians, recognizing the insufficiency and shortcomings of the white missionary effort, have emphasized instead the role of black preachers in spreading Christianity. There is, of course, considerable truth in one Southern clergymans observation that the colored people will, in spite of all our efforts, have more confidence in the views of leading colored members. At the same time, however, evidence suggests that black preachers intent on spreading the gospel to the unconverted faced considerable barriers, as Fanny Kemble witnessed in Georgia in 1839: There were a short time ago two free black preachers in this neighborhood, but they have lately been ejected from the place. I could not clearly learn, but one may possibly imagine, upon what grounds. (Rael, 1997) Frederick Douglass, who spoke after Garnet at the Convention, denounced the idea of a violent rebellion. Douglass, an eloquent ex-slave from Maryland, was the leading African American spokesperson of the time. Although he had been Garrisons protege and friend, they eventually had a public and dramatic falling out over differing interpretations of the Constitution. Whereas Garrison regarded the Constitution as a pro-slavery document, even going so far as to publicly burn it, Douglass took the wording of the Constitution to imply federal authority to either restrict or destroy slavery. (PBS Africans). 1843 was to be the year of the Hundred Conventions—a hundred antislavery meetings planned by the American Anti slavery Society. The goal of a hundred was never actually reached, but Douglass himself spoke at nearly that many meetings in 1843 as he traveled across New England, upstate New York, Ohio and Indiana, and back through Pennsylvania, gaining an increasingly strong and independent voice. While preaching against slavery as it existed in the South, he made constant references to what he was facing now in the North—a North that would not accord him equality. He believed fervently that the ending of slavery would mean the beginning of full manhood for his brothers and himself. With its end, they and he would be paid attention to, would be respected. Somehow, it was slavery that had bred the poison of racism. In the company of devoted proponents of universal reform, he did not waver in his belief that slavery was the one overriding evil that had to be gotten rid of before any other goals, however desirable, should be sought.

Wcf Architecture In Depth Information Technology Essay

Wcf Architecture In Depth Information Technology Essay Nowadays distributed system becomes increasingly significant and a great number of developers utilize that technology to build their applications. One of the most common used technologies is WCF which stands for windows communication foundation. WCF is utilized on windows platform and .NET framework. On .NET framework WCF is the first service-oriented model. There are three important components in WCF in terms of programming model and they are address, binding and contract. Moreover, there are two layers in layer structure of WCF and they are Messaging layer and Service Model layer. In order to understand WCF deeply some good features of WCF will be introduced such as unification of different technologies, interoperability with other existing applications and fully support for Service-Oriented development. Key words: WCF, service-oriented development, architecture, layers WCF, unification and interoperability. INTRODUCTION WCF, which stands for Windows Communication Foundation, is utilized by many distributed system application developers for its outstanding advantages. WCF enables developers to build their applications which can meet different requirements by unifying current distributed technologies. Applications developed by utilizing WCF can interact with other applications developed in other languages and on other platforms easily. Updating conveniently is another advantage WCF has, since it is unnecessary to re-deploy the whole application if only a part of the solution needs to be modified. Address, binding and contract are the three essential components of WCF. Address is used to guide the packets to the destination. Bindings responsibility is to specify the methods how the packets are sent. Contract is in charge of what message the packets should have. The layer structure of WCF will be introduced in this research as well. Messaging layer and service model layer are the two layers. WCF has som e outstanding features and these features will be illustrated in the following paper. SERVICE-ORIENTED ARCHITECTURE WCF utilizes service-oriented as its model, as a consequence, it is necessary to introduce the service-oriented architecture (SOA) before introducing WCF. Comparing to object-oriented architecture, SOA can solve many problems which are brought up by object-oriented architecture. For example, different components of an application do not depend on each other tightly, so modifying applications so as to meet the business needs is not expensive and complicated any more. Some of the significant features and principles will be illustrated as follows. The definition of SOA is that SOA contains a set of services and these services were designed well by other developers. Hence, different services have a loosely-coupled relationship which enables developer to modify any services as needed without affecting any other services. More specifically, in object-oriented model changing only a small part of the solution will lead the whole application to be redeployed. However, in SOA all the services do not depend on each other tightly and they are all autonomous. The client side of an application has no clue about the implementation process on the sever side and vice versa, as a consequence, implementing and modifying services on both client and server is flexible. If a service needs to be updated and the service is still available there is no need to modify services on the client side. Schemas and contracts, which are two significant component of SOA, are two aspects that SOA concentrates on to communicate with different nodes rather than classes. As a consequence, SOA enables the distributed application platform and language independent. ARCHITECTURE OF WCF WCF has attracted more and more attentions due to many pros of it. Before WCF was invented, what developers utilized to develop applications were DCOM, .NET Remoting or Web service. However, these technologies brought many drawbacks including security, cross-platform and performance and so on. After WCF was invented a great number of developers had started to utilize the new technology and the problems mentioned above can be solved by WCF completely. In order to understand deeply about WCF, the architecture of WCF will be illustrated as follows. wcfabc.png Figure 1[5] Communication through the endpoint  ·The most important components of WCF are address, binding and contract. Address is responsible to inform the data packet where to go. Binding is in charge of the way how to communicate with the services. Contract is used to define what the service contains or what the service is able to do. These three components of WCF are also known as ABCs of WCF. Endpoint as shown in the figure 1 constitutes address, binding and contract and it is can be seen as the gateway for other clients. In order to communicate with a service, clients should know the ABCs of that service. As we know, the Web Service Description Language (WSDL) is responsible to describe what an endpoint can do and how to access that endpoint. C:UsersmalongDesktopWCF architecture.jpg Figure 2 [4] WCF Programming Model Figure 2 shows all the components of WCF programming model more details about this Model will be illustrated as follows. There are two sides of this programming model and they are client side and service side. Client side The client side can only consist of one endpoint which has address, binding and contract for each service. In the whole program the client side contains a proxy which enables the client to communicate with the service. When communicating with different services the client can utilize multiple proxies which use multiple endpoints accordingly. A proxy is utilized to fulfill the job of CLR interface which has the same the function as service contract. Proxy not only does the job of service contract but also provide extra functions to manage the life cycle of a proxy. All the attributes of a service are assembled by a proxy such as service address, service running environment and transport protocols. Different behaviors can be defined by the client in order to configure the local configuration files including instancing, concurrency, transaction control and security. Service side There can be multiple endpoints on the service side and these endpoints are in charge of sending messages to a service if there are some services requesting message sending in. behaviors do the same jobs as the behaviors do on the client side. On the service side there is a significant component named dispatcher which is related to the proxy in the client side. Proxy and dispatcher work together to convert between methods that clients desire to invoke and WCF messages. Channel dispatcher and endpoint dispatcher constitute one channel stack. Channel dispatcher is responsible for getting messages from the channel and choosing the endpoint dispatcher in which these messages will be dealt with. Endpoint dispatcher consists of filters and dispatch runtime. More specifically, it is the filters that make sure the incoming messages are dispatched to the right function within a service object. After the messages are dispatched to the endpoint dispatcher, the message will be transfer to dispatch-runtime within that endpoint dispatcher. The object of Dispatch-runtime is utilized to choose which function to call and serialize or de-serialize functions parameters and control objects lifetime. More details about ABCs of WCF Address Address is utilized to tell clients where the location of the service is. Of course, before a client can communicate with the service side, it needs to know the address of the service first. The format of the address in WCF is URLs. In the URLs, many things are defined including protocols, the address of the terminal providing services and the path which can enable the client to get access to the actual service. In URLs port number in address is not fixed and which port number to use depends on the types of transmitting protocols. More specifically, there are four parts of the address section. Firstly, transport scheme is responsible to define the protocol which is used to transfer message. Secondly, Name of the service machine is used to locate the machine which provides the services. Moreover, the name for that machine should be fully qualified domain name which can be translated to the right IP address by some DNS servers. Thirdly, what port number developers can use totally based on transmitting protocol. By default port 80 is for HTTP address. The last one is path which is the name of the directories. Here is the format of address Scheme ://< hostname of service > [: port number]/path1/path2. Binding Binding plays a vital role of defining the method to communicate with service side. Binding is responsible to control transport, channels, encoding and WS protocols. WCF has provided a large number of models of binding and these models can almost satisfy most of the developers. Custom binding can be built to meet the needs of developers who have special demands for the binding model. More specifically, a binding can be seen as a multiple layered stack which contains one or multiple channels and these channels are in charge of processing data. Transport channel is at the lowest level of this stack which is utilized to adapt the stack to the transporting protocols such as TCP, HTTP and SMTP. This special stack is used to supply with a concept. And that concept is responsible to define in which way the message should be sent and to define what the messages should contain or what protocols should to be used for transmission. Contract Contract is used to define what a message should contain or what services the service side can provide. More specifically, it is the contract that defines what services need to be exposed to outside thereby deciding what to implement inside. Moreover, contract enables the interoperation between different platforms to be authentic. Three different types of contract will be illustrated as follows. The first one is service contract which is utilized to define the transmitting methods among clients and services. Message contract is the second one and is used to define the message architecture. SOAP envelop can be modified by message contract. The last one is data contract which holds the information of classes such as types defined in classes and that information will be transferred between clients and service. There are three messaging transmission methods and they are one-way, request-replay and duplex. In the one-way pattern a client sends out messages to the service, but the client does not wait for the response of that service. The pattern is like invoking an asynchronous function which does not have a return value. The second pattern is request-reply pattern in which the client will wait for a response from service after sending a message. That client is able to do nothing until it receives the response from the service. In other words, the request-reply is a two way interoperation which can be seen as a synchronous communication. This request-reply pattern is utilized as the default method in WCF. The last one is duplex pattern and this pattern is the most complicated manner comparing to other two patterns. The duplex pattern is a real peer-to-peer communication and the client and the service send and receive messages simultaneously which are transferred on different channels. In thi s method the client and the service can be seen as the message initiator. THE LAYER STRUCTUR OF WCF Figure 3[4] The layer structure of WCF WCF has a layered structure which contains two different layers and they are service model layer and messaging layer. What a developer to do on the service model layer is to do the programming task, however, the messaging layer, which is underneath the service model layer, is responsible to transport the all the messages to the destination. The concept of layer structure enables to separate the programming from the messaging. As shown in the figure 3, service model layer is the top layer which is in charge of contract, policy and behavior. And behavior is the most significant part among these three. Channels, encoders, transports and protocols are the components of messaging model in which the channels is the most important part. Messaging layer In messaging layer all the real messages are transferred on this layer which is similar to the network layer and data-link layer in OSI model. Moreover, transports protocols are defined at this layer as well. Format for the messages and the messages encoding rules are both defined at messaging layer too. Channel is a function that the messaging layer provides which is responsible to transmit messages among clients and services. Channel function is so important that messaging layer is sometime called channel layer. Address and binding are two significant components in channel. Address is utilized to tell the message where the service location is and the bindings responsibility is to manage the methods that messages should be sent. In order to enable the messaging transmission to work well between clients and services, both the client and service need to understand all the variables such as protocols, the encoding, method defined to transfer message and transport. It is the factory tha t enables the client side to create channels so as to communicate with services. Listener plays the role of accepting messages from client side through predefined channels. Channels another function is that it can monitor the forwarding messages and receiving messages by utilizing specified transport and messaging transfer method. Service Model layer Service model layer enables to affect the messaging process by utilizing object-oriented programming rules. When developers design their applications the design actually happens at this layer. In other words the service model layer responsible for the design of the application and it provides user-friendly API which includes classes, functions, attributes and configurations. In service model layer the most significant part is behavior and client and service can have multiple behaviors. Behaviors do have effect on the translation from messages to .NET attributes rather than affecting on contract. UNDERSTAND WCF IN DEPTH Unification of current technologies Nowadays a number of distributed technologies are utilized by developers to develop their applications. Although there are some advantages of these technologies, these technologies brought many problems. These technologies utilize different programming languages and models. If developers desire to build distributed system they need to utilize distinct APIs. WCF is the new technology which enables developers to build distributed system for different business corporations by utilizing only one API. WCF can be seen as the combination of these current distributed technologies such ASMX, .Net Remoting, MSMQ and WS-* technology. WCF also inherits the advantages of these technologies such as efficiency from ASMX, extensibility and flexibility from .Net Remoting and so on. Some of the technologies will be illustrated as follows. ASMX stands for ASP.NET Web Services which provides great interoperability and the ability to make packets pass through firewall easily. ASMX transfers data through messages as well. Different transport protocols can be utilized to transfer message such as HTTP and TCP. And the main protocol for message is SOAP the format is XML. However, ASMX is not flexible in choosing delivery methods and security manners. It is the ASMX that enables to communicate to applications which is developed by J2EE across the internet. ASMX has been seen as a very outstanding vendor-independent technology. .NET Remoting has a good support for the lifetime management and self-defined hosts. Moreover, it has an outstanding extensibility and flexibility. If there are many boundary clients which needs to communicate with a central server .NET Remoting is the best choice, because the both the client and the server should be developed on .NET environment. This .NET to .NET architecture provides the best performance. Enterprise Services is the next generation of COM+ and can be utilized to manage the lifetime of object and specify the distributed transactions. Enterprise services enable developers to focus on building service-oriented components. The interoperability is one of the relatively serious drawbacks. And the number of communication protocols which support this technology is small. WSE stands for Web Services Enhancements and can be utilized to talk to J2EE based applications. A large number of the agreements which are defined in web services have been implemented in WSE, as a consequence, WSE can be called WS-* specifications. WSE can ensure the security of an application. MSMQ is the abbreviation of Microsoft Message Queuing. MSMQ enables to send messages to the partner applications which are not available or online. In other words, MSMQ lets the messages stayed in the queue and sends the messages to the server when it is available. MSMQ is the best for applications that the servers are not online all the time. C:UsersmalongDesktop1.jpg Figure 4[1] Unification feature of WCF Figure 4 shows the summary information about the technologies that WCF has unified. As we can see from figure 4, WCF provides more for developers, which enables to build applications much conveniently and efficiently. How to unify different technologies WCF enables developers to use all the good points from other technologies straight away. In order to make the other technologies work for WCF, developers need to attach specified elements to the contract of WCF. WCF can gain a great number of good features due to the unification of others technologies. Some of the good features which inherited from Web Service are shown as follows. Because WCF has a good support for web service, WCF gains some good features about security. WS-security and WS-Trust enable WCF to provide many functions including integrity checking, authentication and so on. These features can ensure the security for the transmission for SOAP messages. WS-Reliable messaging adds an additional tag into SOAP header which enables WCF to ensure its communication much reliable. WCF also supports the integrity of the data because of the feature of WS-Coordination and WS-Atomic. WS-Addressing can be used to make the messages transmission without utilizing transport protocols. Interoperability with Other Platforms Nowadays distributed applications are developed in many different languages and the technologies utilized are invented by many different vendors as well. That situation happens in many enterprises and the applications using WCF can communicate with other applications using other language or software because WCF utilizes SOAP as its communication protocol. WCF based applications are able to interact with applications working in distinct process on same terminal and applications working on other terminals. Applications built on WCF can interoperate with each other when they are run on different operating systems such as Linux and windows. WCF is able to enables the previous technologies to with compatibly with itself. More specifically, SOAP is utilized by both ASMX and WCF; as a consequence, ASMX built-on applications can work compatibly with applications which are based on WCF. Service-Oriented Development is supported Over the next few years, creating applications in a service-oriented style will become the norm. For this to happen, the platforms on which those applications are built must provide the right support for creating service-oriented software. Achieving this is one of WCFs most important goals. Building distributed applications by using Services-oriented Development will be increasingly popular. WCF is seen as the first service-oriented development technology in the platform of windows, which provides a good support for platform independent and updating services conveniently. What does WCF concentrate on is the service rather than object. Some of the key principles about WCF are illustrated as follows. The first one is shared schema. Communication between applications never depends on classes anymore and what they depends on is schema which has be predefined in both of these applications. The behavior transferring attributes such as classes or functions will be banned. Secondly, services are all independent. An interface should be defined between clients and services, which enables the application language and platform independent. However, the clients and services should be loosely-dependent. Lastly, the boundaries should be defined clearly. The explicit boundary enables the remote objects to be seen as they are local. CONCLUSION In conclusion, WCF is a Windows platform service-oriented technology which is able to provide interoperability between different applications. Nowadays distributed application developers prefer to utilize technologies built on service-oriented architecture. One of the advantages of service-oriented architecture is that different components of an application depend on each other loosely, so modifying application in order to meet the business needs is economical and easy. WCF is an outstanding representative of SOA and it has three significant components in its programming model. The three components are address, binding and contract. Address is used to tell where the message should be transferred. Binding is responsible to define how to communicate to a service. Contract is in charge of describing what services are provided. There are two layers and they are service model layer and messaging layer in terms of WCF layer architecture. One of the important responsibility in messaging lay er is how the real messages can be sent out with all the attributed being serialized. Service model layer is responsible for the design of the application and it provides user-friendly APIs for the future utilization. In order to get a deep understanding WCF, a number of features of WCF was introduced. WCF is like a combination of other distributed technologies and it makes the combination of technologies is much user-friendly. Shared schema, Independent Services and Clearly Defined Boundaries are the three key principles to SOA.