Health Care Reform Essay Example | Topics and Well Written Essays - 750 words - 1

Medicinal services Reform - Essay Example The most fervently challenged issue in the discussion is the way best to increase widespread inclusion. While there is understanding that objective is for everybody to have medicinal services inclusion, there is a lot of discussion over the best systems to accomplish the objective. John Holahan, Director and Linda J. Blumberg, Senior Fellow of the Urban Institute Health Policy Center said â€Å"A open arrangement would not demolish the private protection advertise yet would make it increasingly serious and lead to the advantages related with rivalry. Numerous private plans would stay alluring due to their capacity to be receptive to purchaser requests and to be imaginative in care the executives. Open plans are alluring on the grounds that they can offer better access to fundamental consideration for differing populaces, have lower authoritative expenses, and have solid arranging power with providers† (Karina, 2009). Dr. Sidney Wolfe of the open intrigue bunch Public Citizen d issented, pushing for a solitary payer Health Care Reform expressing â€Å"In seven states, extending from Washington to Minnesota to Maine, they have attempted what adds up to a blend of a private and an open arrangement. What's more, in none of the states has there been any supported decrease in the quantity of uninsured. Its way too expensive† (Bill Moyers Journal, 2009). The Obama Plan: Stability and Security For All Americans contains a two section proposition as for general inclusion. Section 1 under President Obama’s Plan, is the making of a protection commercial center, â€Å"the Exchange† that would furnish private companies and people with access to a more extensive assortment of decision. Section 2 under the President’s plan offers an increasingly reasonable alternative to the individuals who can’t find moderate inclusion in â€Å"the Exchange† or somewhere else (The White House, 2009). Basically, the Public Option would work likewise to Medicare, then again, actually any individual who can't manage

Warbling and Garbling

Chattering and Garbling Chattering and Garbling Chattering and Garbling By Maeve Maddox I thought I knew the importance of chatter and jumble. Whenever requested to characterize them, Id state that chatter intends to sing musically and confuse intends to mutilate expressed words, or to misshape the feeling of something composed. These definitions from the OED recommend that Im destined for success: chatter: v. intr. To regulate the voice in singing; to sing with trills and trembles. In later use †¦ to sing delicately and pleasantly, in a birdlike way; frequently only a jocose substitute for sing. jumble: v. To make determinations from with a (normally uncalled for or devilish) reason; to ravage (an announcement, composing, and so forth.) with a view to deception. An artist may chatter a melody. A sound transmission may get jumbled. An interpreter may distort a work in interpretation, or a sentence may get jumbled when translated or digitalized. The words can in any case be discovered utilized with the implications I perceive: Connie Francis chatters the hit title tune [Where the Boys Are]. Russias Mr. Trololo†¦may chatter across America: The clasp, which highlights Khil silently chattering his way through a track †¦ has been seen a few million times on YouTube†¦ A few scholars appear to utilize chatter when they mean distortion: the person†¦proved your point with their chattered comment†¦it was hard to try and follow their line of reasoning the entire table started singing a chattered yet healthy form of the melody My head is brimming with chattered wordswords that don’t very structure the photos on the grounds that they are so abnormal. Once in a while chatter and jumble happen pair: Like some vamp from a past time, Connie Chung, the previous CBS and CNN anchorwoman chattered and confused - it cannot be called singing - a farewell†¦ She [a court defendant] raises doubt about the infringement of her sacred option to have the procedures deciphered when she says that she has been exhorted that the managing official chattered and jumbled some understanding to her. The way toward digitalizing sound and video appears to have resuscitated another importance of chatter as it were that the OED names out of date: to vibrate, tremble; to wobble: Im thinking about whether individuals know how a ton of the chattered/twisted sounds ala Boards Of Canada/Warp Records is accomplished? I am simply setting out on the tearing of old tapes and the first I flew into my deck today is chattered hopeless. I convert a great deal of bygone era radio shows to mp3s so I most likely notification it more, however once you go beneath a specific degree of kps, you begin to get a chattered quality to the sound. [or should that be garbled?] And afterward there are the utilizations installed in language whose general importance I can just theory at: At the point when I attempted to open an avi record with gxine, the image was chattered and I got a blunder message I did what you recommended and it is better. The ricochet to .wav played fine in the workspace. I open itunes imported the .wav then made a mp3 form in itunes. It was not tantamount to the .wav more slender sounding yet none of the chattering like you were tweaking a flanger. Anyone know what a flanger is? Need to improve your English in a short time a day? Get a membership and begin getting our composing tips and activities day by day! Continue learning! Peruse the Misused Words class, check our well known posts, or pick a related post below:7 Examples of Passive Voice (And How To Fix Them)What is Dative Case?Types of Ignorance

5th Grade Argumentative Essay Samples

5th Grade Argumentative Essay SamplesIn the past I used to find that writing a 5th grade argumentative essay samples is just very easy, and I did not really consider it to be my problem. Now when I read the essays that are on the Internet and on certain discussion forums, I am surprised at the fact that people have so much difficulty writing such essays. It seems to me that many of the writers are just not good at writing as well as they should be. Of course, it could be that they do not know any better but, I am sure that they do not have the type of writing that is necessary to make the articles worthwhile.With all the help that we are given by the Internet today, it seems like the last thing that is needed now is any type of writing ability, because with the freedom to choose whatever kind of content that you want, you can learn to write whatever you want to write. Of course, if you are not able to write or you are just not talented in writing, then you will not be able to succeed at this.The information that is given to us is wonderful because it is a new generation of information. It can really open up the way for learning things that we are unable to do. We don't have to be like the old school, we can choose the kind of information that we want to learn from the Internet. What else could you ask for?The editors of such Internet sites or websites will have the responsibility of selecting the good essay writers and they will do their best to select the best ones out there. They will not force them to write, but they will work together with the writers to find out what is their best work and see if they can get their writing style to be just right for that article.One way that they will do this is to make sure that they keep the reader's attention by making the essay short and to the point. The editor may also try to identify the specific areas where the writers need to work on and how they can make the writer's experience and expertise to be noticeable.Some people seem to think that they can write the best thing on the Internet or in magazines, but they think that they can make the best essay just by throwing in some good amount of sentences and small paragraphs in between, however the editor knows better and does not allow that. So, these are just some of the tips that you can follow to write excellent 5th grade argumentative essay samples. One of the most important things that you should remember about this is to always give your readers an impression that you are honest and sincere.Writing is one of the best skills that you can have. If you want to become a master writer, then the best thing to do is to put a lot of time into learning the art of writing. It would be nice if there was a better teacher or something that would guide you throughout your learning process, but unfortunately that is not possible, but the fact is that if you have the passion for writing, then you are on your way to becoming a great writer.

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Rudyard Kipling s `` If `` And Not Make Dreams Your...

In his poem â€Å"If†, Rudyard Kipling explains all the things that one must endure in order to become a gentleman. Kipling describes what would happen â€Å"if you can dream--and not make dreams your master† that one would be a Man. The qualities that Kipling describes show a stoic person, but not someone who is flashy. The person describes can take the good with the bad--they â€Å"can meet with Triumph and Disaster and treat those two impostors just the same† while â€Å"keep[ing] their head [about them].† A Man can â€Å"force your heart and nerve and sinew.. and so hold on when there is nothing in you†. A Man will embrace the things that make life worth living. He will recover quickly from his losses, knowing that he can learn from them. Another quality that Kipling emphasizes is willpower, that â€Å"the Will which says to them! Hold on!† Trust in life and that everything will work out is also a quality that one must have to be a Gentl eman, and to really embrace life. To attain this wisdom and outlook on life, one must have had experience with at least a portion of life, having the necessary experience to draw from mistakes and repeat the actions one showed in triumphs. Even though life is not fair and one has no idea why he is being punished, one must take it gracefully and accept the absence of such a reason as part of the grand design of life and humankind. But the essence of â€Å"If† is that if one can embrace the challenges and absurdity that life throws at oneself, then one can succeed andShow MoreRelated##ment. :If By Rudyard Kipling And The Paradoxical Commandments1369 Words   |  6 Pagesgenders? This question does not have an interpretation as there is an abundance of aspects, the points of view, opinions and more; but we can look at the different pieces of recommendation given to males and the generic suggestions. â€Å"If†Ã¢â‚¬â„¢ by Rudyard Kipling and â€Å"The Paradoxical Comman dments† written by Dr. Kent M. Keith encloses similarities and differences in the way the author’s grant information to their addressed masses, on the other hand, they are different in their targeted readers. â€Å"If† isRead Moreâ€Å"If† In his poem â€Å"If,† Rudyard Kipling is writing to his son, John, about the most important600 Words   |  3 Pagesâ€Å"If† In his poem â€Å"If,† Rudyard Kipling is writing to his son, John, about the most important virtues that a good human being possesses. Through the years of his life, Kipling often traveled around the U.S., and sometimes to other countries. In his travels, Kipling met one of his greatest friends, Leander Starr Jameson, a colonial politician. It is believed that, although it was addressed to Kipling’s son, â€Å"If† was actually about Jameson. By using themes Kipling saw in his friend Jameson, such asRead MoreImpact of Emerging Markets on Marketing15122 Words   |  61 Pagesfaithbased sociopolitical institutions in which public policy matters. They also suffer from inadequate infrastructure and chronic shortage of resources. Most of the competition comes from unbranded products or services, and consumption is more of a make versus buy decision and less about what brand to buy. Therefore, many beliefs that are fundamental to marketing, such as market segmentatio n, market orientation, and brand equity, are at odds with the realities of emerging markets. At the same timeRead MoreProject Mgmt296381 Words   |  1186 PagesChulalongkorn University in Bangkok, Thailand. He received a B.A. in psychology from Claremont McKenna College and a Ph.D. in management from State University of New York at Buffalo. He is a certified project management professional (PMP) and Scrum Master. Clifford F. Gray CLIFFORD F. GRAY is professor emeritus of management at the College of Business, Oregon State University. He continues to teach undergraduate and graduate project management courses overseas and in the United States; he has personallyRead MoreCase Studies67624 Words   |  271 Pagesachieving strategic competitiveness and earning above-average returns. The case method that we are recommending to you has a rich heritage as a pedagogical approach to the study and understanding of managerial effectiveness.2 As an active learner, your preparation is critical to successful use of the case analysis method. Without careful study and analysis, active learners lack the insights required to participate fully in the discussion of a firm’s situation and the strategic actions that are appropriate

Directing Mind and Will for Tesco Supermarkets Ltd- myassignmenthelp

Question: Discuss about theDirecting Mind and Will for Tesco Supermarkets Ltd. Answer: Once a company is established then it has its own distinct personality and the conduct of the company is carried out on its own and is discussed in (Salomon v A Salomon and Co Ltd, 1897) . But, a company is not a living person. Thus, a company requires a kind of some living person who must carry out the functions of the company. Normally the persons who act as per the company are the directors, superior officers or managing directors of the company. They are called the directing mind and will of the company. Normally the directing mind and will of the company are those directors who are part of the articles or memorandums of the company or who by meetings are authorized with powers to represent the company. In the leading case ( Tesco Supermarkets Ltd v. Nattrass, 1972) and (Lennard's Carrying Co Ltd v Asiatic Petroleum Co Ltd, 1915), it was held that the officers who represents the company and who are at higher positions and are entrusted with the powers through which they can take decisions and represent the company are called the directing mind and will of the company. In (Meridian Global Funds Asia Ltd. v. Securities Commission, 1995), it was held that normally it is the attributes of the company that defines who the directing mind is and will of the company. Thus, normally it is the officers at the superior position who are considered to be the directing mind and will of the company. However, any person who has the power and authority to represent the company and his acts become the acts of the company, then, such person is considered to be the directing mind and will of the company. (Shodhganga, 2017) Piercing the corporate Veil Lifting of corporate veil or the piercing of the corporate veil is the legal phrase which emphasis on the situation wherein the duties and the rights of the company are regarded as the duties and rights of the company directors or shareholders. It is an exception to the Separate legal entity feature of a company. (Capuano, 2009) It is not in every situation that the separate legal personality of the company is shed away. But there are situations herein the corporate veil of the company is pierced and the acts of the company are considered to be the acts of the company shareholders and directors. normally, when the directors are avoiding any of their existing duty or when the acts of the company directors are sham, that is, the true purpose of the company is not comply with the directors or when the acts of the company directors are such that the same are incurring fraud on the company or when the directors are acting in such a manner so as to avoid the tax or when the court believe that lifting the veil would be in the interest of the public. Then in such situations, the separate legal personality of the company is disregard and the corporate veil of the company is pierced. (Vision, 2016) Bibliography Tesco Supermarkets Ltd v. Nattrass (1972). Capuano, A. (2009). The Realist's Guide to Piercing the Corporate Veil. Australian Journal of Corporate Law, . Lennard's Carrying Co Ltd v Asiatic Petroleum Co Ltd (1915). Meridian Global Funds Asia Ltd. v. Securities Commission (1995). Salomon v A Salomon and Co Ltd (1897). Shodhganga. (2017). Shodhganga. Retrieved September 19, 2017, from PRINCIPLES AND THEORIES OF - Chapter 3: https://shodhganga.inflibnet.ac.in/bitstream/10603/107447/10/10_chapter%203.pdf Vision, t. L. (2016). Separate legal Entity. Retrieved September 19, 2017, from The Legal Vision: https://legalvision.com.au/how-can-a-court-pierce-the-corporate-veil/

Ten World Flatteners an Example of the Topic Economics Essays by

Ten World Flatteners by Expert Prof J.F | 27 Dec 2016 Essay told about the ten things that make the world flat are the following: the new age of creativity (Berlin Wall); the new age of connectivity; the work flow software; open-sourcing; outsourcing; offshoring; supply-chaining; in-sourcing; in-forming; and steroids. These world flatteners arise from innovations, political events and companies which created a flattening effect to the world (CapitolReader, 2005). Need essay sample on "Ten World Flatteners" topic? We will write a custom essay sample specifically for you Proceed A flat world is defined as a global, web-enabled platform that has various forms for knowledge and work sharing irrespective of time, distance, geography andlanguage (AIAA Career Enhancement Workshop, 2007). Having a flat world can sometimes be advantageous, as Friedman believes that the ten flatteners evens out and equalizes the playing powers of the world (Lynn, 2007). The New Age of Creativity (1989). This is Friedmans first world flattener. The new age of creativity, which started in 1989, would refer to the fall of the Berlin Wall and the rise of the Windows PC. When the Berlin Wall came down, the balance of power in the world shifted to free markets (AIAA Career Enhancement Workshop, 2007). It also signaled a ripple effect, along with global thinking and knowledge exchange between countries (University of California, Berkeley, 2005). People Very Often Tell Us: I'm not in the mood to write my paper online. I want to spend time with my family Essay writer professionals suggest: Writing Essay Papers Is Easier With Us Essay Help Services College Papers Online Affordable Papers Review Top Essay Writing Company Additionally, this first flattener indicates the outbreak of freedom stimulating another outbreak (AIAA Career Enhancement Workshop, 2007). This process, according to Friedman, flattens societies. The Windows PC, on the other hand, enabled the sharing of content between countries. Internet has given people further reach and scale. Reach refers to the creation of content in many ways while scale refers to how people can share content with others (Lynn, 2007). The New Age of Connectivity (Netscape 1995). This flattener is all about connection and flow of information (University of California, Berkeley, 2005). The emergence of the Netscape signaled the dot com arrival and government and private institutions investments in fiber optic cable to connect them to the world. This flattener, which was considered the first commercial browser, encouraged more users to use the Internet (AIAA Career Enhancement Workshop, 2007). Netscape has signaled the widespread sharing of information, and impacted sharing and imagination. As a result the web became indispensable for the millions of users, leading to the high demands for digital things. This flattener has started the Internet boom (CapitolReader, 2005). Work Flow Software. With the vast possibilities that Internet offered to people to be able to connect with anyone across the world, people have wanted to create, shape and design, sell and purchase things. This need led to the programming functions so that sales, shipping and storage could be possible. It started with Microsoft, which enabled people to work off the same screen and toolbar (CapitolReader, 2005). This flattener has further improved the software and standards, thus enabling people to work together. Additionally, work flow software led to a global platform which made collaboration possible between people and countries (AIAA Career Enhancement Workshop, 2007). Programmers still improve their standards so that more software could be created to maximize the computers efficiency. This then would result to people working with digitized data, words, music, and pictures, and shaped them into products (Friedman, 2005, cited in Lynn, 2007). The advantage of this is that people and companies can easily send emails and documents and information with having to worry. The principle is that if everyone is connected to other people without worries, then information can be easily sent to others in a faster and more convenient way. Friedman stated that information can be sent to the four corners of the world as never before (Friedman, 2005, cited in Lynn, 2007). Open-sourcing. With the advent of the Internet, source codes have become available to people. Knowing these enabled them to write anything from their software to dictionaries (CapitolReader, 2005). The free codes became available to almost anyone because inpiduals tend to openly share data with other people (AIAA Career Enhancement Workshop, 2007). This enabled many people to post anything on the Internet. This led to problems associated with the content of their postings. This has also resulted to the ethics debate. Additionally, this flattener brought attention to socialism versus capitalism (University of California, Berkeley, 2005). Outsourcing (Y2K). This fifth flattener has led to the possibility of sourcing globally any service, business support operation, call center and knowledge work that can be easily digitized. Out-sourcing brought opportunities for people to find the smartest, most efficient, and cheapest providers. Additionally, our-sourcing was a result from the Y2K (year 2000) computer date crisis stemming from India (AIAA Career Enhancement Workshop, 2007). The computer date crisis began as the demand for the Y2K thrown America and India into a business relationship (CapitolReader, 2005). Friedman has illustrated the outsourcing companies during the Y2K. These companies wanted their computers fixed as quickly as possible but at the lowest price. Outsourcing has enabled companies to become more profitable (Lynn, 2007). Offshoring (China). Offshoring gave birth to the notion that all must run (University of California, Berkeley, 2005). This started in 2001 when China joined the World Trade Organization (WTO). This notion then stimulated offshoring. This process indicates that a small portion of a company can be run from another location. This was to take advantage of the cheap labor associated with this process. Aside from the cheap labor, running a portion or function of a company from another place is more efficient and is associated with lower taxes, thus enabling companies to be more competitive in the global market. Offshoring is not just about Americas moving to other locations. For instance, a plant worth $600 million was expanded in Alabama (CapitolReader, 2005). Supply-chain (WalMart). Supply-chain is the seventh flattener according to Friedman. This indicates the worldwide collaboration between suppliers, retailers and customers. Friedman believes that this flattened the world because it adopted common standards, thus lowering border functions (CapitolReader, 2005). WalMart was the pionner in the global supply chain efficiency. Friedman stated that people prefer to buy from supply chains because they deliver goods that have lower prices and tailored to the needs of the customers (Friedman, 2005, cited in Lynn, 2007). WalMarts supply chain functions include delivering goods and products to different stores, and picking up products from the manufacturers on their way back to distribution center (AIAA Career Enhancement Workshop, 2007). In-sourcing. This is the eighth flattener which is about synchronizing world (University of California, Berkeley, 2005). In-sourcing has enabled companies to compete (CapitolReader, 2005). Moreover, customer supply chains were controlled by logistics giants, such as the United Parcel Service. UPS has provided companies with internal logistics support. For instance, Toshiba laptops are sent to UPS wherein an employee repairs the laptop. The UPS then sends the laptop to the customer (AIAA Career Enhancement Workshop, 2007). In-forming. The demand for an easy access to information led to the creation of search engines such as Yahoo, Google, and MSN (CapitolReader, 2005; AIAA Career Enhancement Workshop, 2007). These search engines have made it so easy to search for information about anything in different languages. This then led to the creation of global communities that were otherwise not imagined before (CapitolReader, 2005). Steroids. This tenth flattener refers to mobile, digital, and virtual innovations. These include cell phones, lap tops, VOIP and other wireless handheld devices which enabled connection at high speed (CapitolReader, 2005). These steroids have made possible the acquisition of information from anywhere and anytime (Lynn, 2007). References AIAA Career Enhancement Workshop. (2007). Succeeding in a flat world. Retrieved February 20, 2009. CapitolReader. (2005). Adaptation of the world is flat. Appalachian State University. Retrieved February 20, 2009. University of California Berkeley. (2005). Thomas Friedman, the World is Flat (2005). Retrieved February 20, 2009.

Credit risks in financial markets The WritePass Journal

Credit risks in financial markets Credit risks in financial markets Signs of trouble started to multiply early in 2007.On February 22; HSBC fired the head of its U.S mortgage lending business, recognizing losses reaching $10.8 billion. On March 9, DR Horton, the biggest homebuilder, warned of losses from subprime mortgages. On March 12, New Century Financial, one of the biggest subprime lenders, had its shares suspended from trading amid fears that the company was headed for bankruptcy. On March 13, it was reported that late payments on mortgages and home foreclosures rose to new highs. On March 16, Accredited Home Lenders Holding put up $2.7 billion of its subprime loan book for sale at a heavy discount to generate cash for business operations. On April 2, New Century Financial filed for Chapter 11 bankruptcy protection after it was forced to repurchase billions of dollars worth of bad loans. On June 15, 2007, Bear Stearns announced that two large mortgage hedge funds were having trouble meeting margin calls. Bear grudgingly created a $3.2 billion credit line to bail out one fund and let the other collapse. Investors` equity of $1.5 billion was mostly wiped out. As late as July 2007, Bernanke still estimated subprime losses at only about $100 billion. When Merrill Lynch and Citigroup took big write-down on in-house collateralized debt obligations, the markets actually staged a relief rally. The SP 500 hit a new high in mid-July. It was only at the beginning of August that financial markets really took fright. It came as a shock when Bear Stearns filed for bankruptcy protection for two hedge funds exposed to subprime loans and stopped clients from withdrawing cash from a third fund. As mentioned, Bear Stearns had tried to save these entities by providing $3.2 billion of additional funding. Liquidity risks in financial markets Once the crisis erupted, financial markets unraveled with remarkable rapidity. Everything that could go wrong did. Investment banks carried large positions of CDOs off balance sheet in so-called structured investment vehicles (SIVs). The SIVs financed their positions by issuing asset backed commercial paper. As the value of CDOs came into question, the asset-backed commercial paper market dried up, and the investment banks were forced to bail out their SIVs. Most investment banks took the SIVs into their balance sheet and were forced to recognize large losses in the process. Investment banks were also sitting on large loan commitments to finance leveraged buyouts. In the normal course of events, they would package these loans as collateralized loan obligations (CLOs) and sell them off, but the CLO market came to a standstill together with the CDO market, and the banks were left holding a bag worth about $250 billion. Some banks allowed their SIVs to go bust, and some reneged on their leveraged buyout obligations. This, together with the size of the losses incurred by the banks, served to unnerve the stock market, and price movements became chaotic. So-called market-neutral hedge funds, which exploit small discrepancies in market prices by using very high leverage, ceased to be market neutral and incurred unusual losses. A few highly leveraged ones were wiped out, damaging the reputation of their sponsors and unleashing lawsuits. All this put tremendous pressure on the banking system. Banks had to put additional items on their balance sheets at a time when their capital base was impaired by unexpected losses. Banks had difficulty assessing their exposure and even greater difficulties estimating the exposure of their counterparts. Consequently, they were reluctant to lend to each other and eager to hoard their liquidity. At first, central banks found it difficult to inject enough liquidity because commercial banks avoided using any of the facilities which had an onus attached to them, and they were also reluctant to deal with each other, but eventually these obstacles were overcome .After all, if there is one thing central banks know how to do, that is to provide liquidity. Only the Bank of England suffered a major debacle when it attempted to rescue Northern Rock, an overextended mortgage lender. Its rescue effort resulted in a run on the bank. Eventually Northern Rock was nationalized and its obligations add ed to the national debt, pushing the United Kingdom beyond the limits imposed by the Maastricht Treaty. Extreme uncertainty and volatility in financial markets Although liquidity had been provided, the crisis refused to abate. Credit spreads continued to widen. Almost all the major banksCitigroup, Merrill Lynch, Lehman Brothers, Bank of America, Wachovia, UBS, Credit Suisseannounced major write-downs in the fourth quarter, and most have signaled continued write-downs in the fourth quarter, and most have signaled continued write-downs in 2008. Both AIG and Credit Suisse made preliminary fourth-quarter write-down announcements that they repeatedly revised, conveying the doubtless accurate impression that they had lost control of their balance sheets. A $7.2 billion trading fiasco at Societe Generale announced in January 2008, coincided with a selling climax in the stock market and an extraordinary 75 basis point cut in the federal funds rate eight days before the regularly scheduled meeting, when the rate was cut a further 50 basis points. This was unprecedented. Distress spread from residential real estate to credit card debt, auto debt, and commercial real estate. Trouble at the monocline insurance companies, which traditionally specialized in municipal bonds but ventured into insuring structured and synthetic products, caused the municipal bond market to be disrupted. An even larger unresolved problem is looming in the credit default swaps market.

Business Outsourcing and Functions †Free Samples to Students

The process of contracting out or delegating work to people or agencies outside the business premises is called outsourcing business function. It may evolve in carrying tasks, job, or any operation where external third parties are contracted for significant time period  (Riley, 2010). The work outsourced can be performed in house or outside the firm. Outsourcing has gained much importance with changing nature of businesses   (Dendler, n.d.). In last decades, many big and small organisations which are getting associated with globalisation, considers outsourcing function as a positive approach. Geographical limitations are dealt with ease by facilitating outsourcing business functions like manufacturing, customer support, in house support, advertisement, etc.  (ITONews.eu, 2017) The role of strategic management has become important not only to look after business practice carried within organisations, but also manage work that can be outsourced to get efficient work with cost red uctive ways. Since outsourcing itself is a complicated process, a company may face various challenges while implementing it into business  (Pellicelli, 2012). In this literature review opportunities of outsourcing in business along with major challenges faced by it will be reviewed and analysed with the help of research made by authors and researchers along with identifying gaps between the studies. As shown in above figure, the reason to outsource work to external providers is various and thus becomes necessary to introduce it in business. Depending on the nature of business the outsourcing function may vary but the primary objective behind it lays the same i.e. cost reduction or gaining efficiency in work  (Kremic, 2006). For example, in large manufacturing companies where great number of people is required like labours, designers, suppliers, contractors, etc. outsourcing provides great help as requirement of hiring full time staff is not necessary on outsourced areas. In manufacturing firms large number of parts are manufactured by outsourced companies which could otherwise have been expensive or difficult to manufacture by own. In customer service companies like call centres and BPOs, large firms outsource their customer related services in order to reduce costs of making separate department for them in house. Other human resource management tasks like employee training ce ntres, payroll, staff benefit management, etc are largely outsourced in order to get higher quality work from experts  (Anon., 2011). Advertising plays a major role to make enhanced sale of product or services in business. Outsourcing has given industries a great backing here as large number of advertising companies and social media sites gets outsourced by businesses and carries the work in lesser time. Therefore in some or the other way business is largely depended on outsourcing function to expand their work area and bring in efficiency. Work quality is improved by hiring experts along with enabling business owners to give core efforts in major activities for development of the firm. Although outsourcing is becoming centre in today’s business functions, the challenges to improvise them are also increasing. Thus it becomes necessary on management part to understand the key benefits and potential challenges behind outsourcing function in business  (LLP, 2010). The opportunities relating outsourcing function is been developing and is considered to be highly potential in business  (Kremic, 2006). The advantages of it can be clearly seen in running of organisations which is observed and described by different authors. The following figure depicts major opportunity that can be gained by business while implementing outsourcing function. Operation costs reduction: This is the most advantageous feature of outsourcing which helps organisations to eliminate expenses of full time staff for executing operational or manufacturing area. If manufacturing of parts that requires special machine or assistance of special technicians is outsourced, it can reduce the requirement of setting those expensive machines and hiring full time technicians  (Crosby, 2017). Works related to internal management area like legal, planning, product designing, etc. requires expert advices. Outsourcing can provide scope for expert advice in cost effective manner as they may be efficient in their work while giving services to many companies simultaneously. Easier cost control: The role of management plays an important part to recognise cost curtail in organisational functions as if outsourcing is done in proper and planned manner, it can prove very effective in controlling overall costs of business. Like if a company’s work is seasonal, the hiring of full time staff can increase the cost of project while outsourcing can minimise the costs, provided, the availability of staff is possible during peak season. In other areas like cleaning and sanitizing, transportation, currier service, advertising etc. are normally outsourced in large organisations in order to perform the task in effective and cost reductive way  (Simeoni, 2011). Cooperation with specialist from narrow area: The requirement of advisors in legal and administrative part of firms can prove expensive as the specialists charge higher rates if engaged full time. Outsourcing these functions can provide engagement of experts in lower costs as they work together for many companies and take charges in distributed way. Big organisations prefer to hire full time staff for crucial jobs where important data is used whereas small companies find it easier to outsource these functions and get expert advices in nominal rates  (McCray, 2012). Process optimization and rising efficiency: Outsourcing gives opportunities to the companies to get exposure to merchant specialized systems. By outsourcing work to them, efficiency is increased along with gaining quality products. It also enables time optimization by outsourcing time taking processes to outsiders  (Simeoni, 2011). For example in restaurants and hospitals where large quantity of food and vegetables along with other supplies is required to be purchased on daily basis, outsourcing its marketing function to vendors and supply agencies can get their work done in quicker way and on time. Liberating capital for other purposes: While outsourcing work, capital of the firm is liberated and can be utilized for other important areas. For example, outsourcing Social Medias for advertisement or brand promotion will be easier for the company than to make provision for brand promotion by them and invest in campaigning and door to door advertising. Expenditure can be saved as Social Medias provide advertising function in cheaper and effective way. Thus saved expenditure can be utilised in other important areas like planning and executing  (Pellicelli, 2012). Releasing internal capabilities: This function is also very important as many companies take advantage of outsourcing to release themselves from tedious jobs for other important works. In businesses large number of activities is carried and distributed among employees within the organisation and some are delegated to outside agencies. The owners keep themselves free for monitoring and executing confidential functions of organisations  (Kremic, 2006). This function not only saves time and energy of delegators but also helps them in sharing risks with the outsourced agencies. While making contracts and terms, company’s mentions the time and quality required and if the outsourced company fails to do that, they are entailed to bear losses if the products are not appreciated by the customers  (Crosby, 2017). Although there are many benefits of outsourcing, there are many challenges also which are faced by the companies. No matter how much planned or budgeted management is, there are few challenges still met by them which have been identified by researchers  (Wong, 2006). As shown in the figure below, the major challenges faced by companies are considered and discussed while giving suitable example. Loss of control: One of the biggest challenges faced by business while outsourcing some of its functions is losing significant control over the outsourced area. Since the external agencies become responsible for task completion, they might not let the delegators to interfere while the task is been performed  (Arena Solutions, Inc., 2017). Thus before realizing the possession; the owners lose control in those areas. Like in product manufacturing company, the outsourced manufacturer may lose quality as they work for many companies altogether and cannot look at each company with consideration and while they restrict the delegators to interfere with their processes, it becomes challenging situation for the outsourcing companies. Coverage: In larger companies where many tasks are outsourced, it becomes difficult on management part to cover entire area monitoring in regular basis. Challenges relating outsourcing done in house are exempted from this factor, while others like manufacturers, advisors, advertising agencies, transport agencies, training experts, etc. are difficult to get covered under monitoring system of management. For example, in hotel business, where large number of activities takes place like cooking, cleaning, sanitising, marketing, etc. lots of people are engaged and many works are outsourced. Thus can become challenging for the management to look after all areas with concentration  (Gammelgard, 2017). Employment Inefficiency: While work is outsourced, it may sometimes result in losing morale of employees and reduce their work quality. This is another challenge faced by organisations and to overcome it the management needs to consider outsourcing from employees view point  (Sethi, 2011). For example if an important or growth oriented program is outsourced and employees are given only tedious and directive work, they might lose faith in their capabilities and thus reduces work performance and efficiency. Many stakeholders: Stakeholders are the ones who are directly or indirectly related to the firm commercially. When work is outsourced, more people and agencies get attached to the company and thus becomes an integrated part of the firm. To some extent company becomes liable to them as if their reputation is hampered; the affects might also be faced by the company. Thus outsourcing involves many stakeholders who bring in risks for delegators. This challenge is normally faced by big organisations where huge activities take place in speckled and global ways. While the organisations work is delegated in dispersed way and sometimes to other countries also, they become liable for many stakeholders  (Whitebox Buisness Solutions, 2012). Dispersed locations: Most companies outsource work to agencies in dispersed areas and sometimes to other countries also (of-shoring). While the work is scattered it becomes challenging on the management part to deal with them at the time of difficulties  (Whitebox Buisness Solutions, 2012). For example, agriculture functions for producing food crops are outsourced in food industries where the organisations are unable to do of their own. Since it requires large area and sometimes even outsourced to other countries favourable for producing required crops, the challenge of dispersed location is faced. Other challenge faced by organisations while dispersing its activity to other countries is challenge of culture and language diversification which makes difficult for organisations to tackle while trading product and service related issues. Budget inadequacy: Sometimes the outsourcing companies are unable to understand and figure out the difference in costs between self working and outsourcing. If made without proper planning, outsourcing can sometimes prove ineffective function with increased cost expenditure. The challenge faced here is to make proper planning for the outsourcing function so that budget is not disturbed. On the other hand where the business has got limited number of administrators, outsourcing becomes necessary and the budget for it can sometimes prove inadequate for them  (McCray, 2012). Know how: This challenge has two meanings in literature. One reveals the challenge of getting knowledge about the quality of outsourced work while other reveals the knowledge about method used for doing the work. For example, firms relating manufacturing of medicine outsources manufacturing of some medicines which requires special machines and is difficult for them to purchase. While the manufacturing is outsourced, sometimes the product delivered by the agencies can be of inferior quality and made under unhygienic conditions. This can become dangerous and even lead to shutting down of outsourcing companies. Thus a very crucial challenge faced by organisations is getting informed about the procedure of outsourced work  (Wong, 2006). To understand the opportunities and challenges while outsourcing in business is very important as to outsource work in business has become extremely important in today’s business world. In fast developing countries, globalisation in organisations has gained significance which could be facilitated by outsourcing  (Anon., 2011). The key opportunities that lie in outsourcing like cost reducing way and work efficiency are the reason why most companies prefer outsourcing their business function  (ITONews.eu, 2017). The gaps that are identified in this study are knowledge about proper method and technique with which successful outsourcing function can be obtained. Although researchers and authors have provided many important information’s for the company’s who have or are planning to implement outsourcing function in their business, still the effective procedure for outsourcing is required so that it becomes easier for managers to improvise it with ease. In this re search paper the analysis between opportunities and challenges of outsourcing business function have been made after making a brief study about outsourcing in order to attain utmost information  (Simeoni, 2011). While outsourcing, opportunities like cost effectiveness is gained along with increased efficiency on the other hand the company tends to lose control over significant areas. Engagement of experts gives opportunities to firms in gaining expert advices while security risks relating important data are also possible. Time saving is probable if the work is done correctly or else could result in adverse affects. Although the managers are released for other significant growth related works, the quality of the outsourced work is sometimes hampered  (Simeoni, 2011). Therefore after analysing, it can be rightfully said that gaining opportunity of outsourcing is possible only after getting profound knowledge and talent to manage its challenges. Anon., 2011. Business Process Outsourcing. (BPO) Needs, Scope and benefits. [Online] Available at: https://freeinfotipsonline.wordpress.com/2011/07/06/business-process-outsourcing-bpo-needs-scope-and-benefits/ [Accessed 29 August 2017]. Arena Solutions, Inc., 2017. Manufacturing Outsourcing for Small and Mid-Size Companies: 10 Key Challenges & How to Address Them. [Online] Available at: https://www.arenasolutions.com/resources/articles/manufacturing-outsourcing-challenges/ [Accessed 29 August 2017]. Compare Infobase Limited, 2017. Challenges Of Outsourcing. [Online] Available at: https://www.naukrihub.com/trainings/challenges-of-outsourcing.html [Accessed 29 August 2017]. Crosby, T., 2017. How Outsourcing Works. [Online] Available at: https://money.howstuffworks.com/outsourcing2.htm [Accessed 29 August 2017]. Dendler, M.J., n.d. Outsourcing Challenges and Solutions: The Example of Craft Trades. [Online] Available at: https://www.neumann.edu/about/publications/NeumannBusinessReview/journal/Review_SP06/pdf/woodworkingoutsourcing.pdf [Accessed 29 August 2017]. Gammelgard, A., 2017. Three outsourcing challenges you may be facing. [Online] Available at: https://www.arenasolutions.com/blog/post/outsourcing-decisions/ [Accessed 29 August 2017]. ITONews.eu, 2017. Outsourcing – What are the advantages and disadvantages of outsourcing? [Online] Available at: https://itonews.eu/outsourcing-what-are-the-advantages-and-disadvantages/ [Accessed 29 August 2017]. Kingsley, J., 2017. Why OUTSOURCE CAD? and Advantages of Outsourcing. [Online] Available at: https://www.linkedin.com/pulse/why-outsource-cad-advantages-outsourcing-john-kingsley [Accessed 29 August 2017]. Kremic, T., 2006. Outsourcing decision support: a survey of benefits, risks, and decision factors. [Online] Available at: https://ankara.lti.cs.cmu.edu/11780/sites/default/files/Outsourcing-Survey.pdf [Accessed 29 August 2017]. LLP, M., 2010. The benefits and risks of outsourcing. [Online] Available at: https://www.lexology.com/library/detail.aspx?g=e698d613-af77-4e34-b84e-940e14e94ce4 [Accessed 29 August 2017]. McCray, S., 2012. The Top 10 Problems with Outsourcing Implementation (and how to overcome them). [Online] Available at: https://www.ssonetwork.com/business-process-outsourcing/articles/the-top-10-problems-with-outsourcing-implementatio [Accessed 29 August 2017]. Pellicelli, P.M.a.M., 2012. The Strategies of Outsourcing and Offshoring. [Online] Available at: https://www.aijcrnet.com/journals/Vol_2_No_9_September_2012/15.pdf [Accessed 29 August 2017]. Riley, J., 2010. Q&A - Explain what is meant by outsourcing. [Online] Available at: https://www.tutor2u.net/business/blog/qa-explain-what-is-meant-by-outsourcing [Accessed 29August 2017]. Schaffhauser, D., 2005. Outsourcing – What is Outsourcing? [Online] Available at: https://www.sourcingmag.com/what-is-outsourcing/ [Accessed 29 August 2017]. Sethi, M.S.a.D., 2011. Human Resource Outsourcing: Analysis Based On Literature Review. [Online] Available at: https://www.ijimt.org/papers/118-M514.pdf [Accessed 29 August 2017]. Simeoni, R., 2011. Understanding Outsourcing Arrangements 2. The reasons and the risks of outsourcing. [Online] Available at: https://inspiringscm.wordpress.com/2011/03/17/understanding-outsourcing-arrangements-2-the-reasons-and-the-risks-of-outsourcing/ [Accessed 29 August 2017]. Whitebox Buisness Solutions, 2012. Seven Challenges of Outsourcing Governance. [Online] Available at: https://whiteboxbizsolutions.wordpress.com/2012/03/05/seven-challenges-of-outsourcing-governance/ [Accessed 29 August 2017]. Wong, K., 2006. Top 10 Challenges of Outsourcing. [Online] Available at: https://www.cadalyst.com/management/news/top-10-challenges-outsourcing-6845 [Accessed 29 August 2017]. Looking for an answer 'who will do my essay for cheap',

Government Agency Essay Example | Topics and Well Written Essays - 250 words - 1

Government Agency - Essay Example They are supposed to help each other especially in the absence of the other person since he is the nearest one in the area. One post man was sick for one week so he was not able to deliver the mails. While the other knows it, he deliberately did not finish he tasks of the other post man, leaving some mails undelivered. Upon the return of the sick postman, he discovered that not all mails were delivered and some of them are urgent. It has caused the conflict between the two postmen so that the Postmaster had to intervene. As a judicial authority, the Postmaster has pushed for a truce between the two postmen, giving a proper sanction to the one who failed to deliver the mail such as asking him to deliver the remaining mails, while helping the sick post man to deliver the recent mails. The Postmaster has also created a rule that the postman at the adjacent county should be responsible for all the letters left by a sick postman-partner so that he is liable for any loss or

Change managemaent models Essay Example | Topics and Well Written Essays - 500 words

Change managemaent models - Essay Example The integral competent of every organization is to choose effectively change management models which can help to stay vibrant and gain competitive advantage over other rivals in the market. Three important change management models that organization must adopt are Bridge transition Model, Kotter 8 Step of Change management and Lewin change Management Model. The transition model of Bridge provides a solution for understanding the changes undergoing in an organization. The three phases of transition model are ending, neutral zone and new beginning. Ending phase process is to identify the reasons behind the changes and acknowledge openly the losses arising in an organization. The neutral zone phase is to reduce the deteriorating of motivation on individuals within the workplace. The neutral phase is the process of treating employees to fell as a part of change management process. The new beginning phase is to motivate and effectively communicate with the employees to make them understand about the purpose of implementation of change management process in organization. Change management model by Kotter suggests that the momentum of the change adopted in an organization must be maintained to maintain continuous cycle. First step is to increase the sense of urgency. Next step is to form a guiding and powerful team to resist the change in the workplace (Green, 2012). Next is to create strategy and vision for change. Then communicate the vision and strategy for change. Empower staff and remove the obstacles for application of change management. Next step is to create short term goals for organization. Then unite the gains and stay tenacious. Final step is to anchor the change which can help to make the change permanent. Change management model of Lewin is preferred by most of the companies to enact the changes in an organization due to its simplicity and easy to use. Three stages of the model are unfreezing, change and

Diversity in Management Essay -- BTEC Business Marketing GCSE Coursewo

Diversity in Management Diversity in management, or lack thereof, is having the same mixture of women, blacks, and other minorities in management positions as there is in that local population. What this paper will talk about is some of the facts that business will have to face in regards to diversifying there workforce and there management. Also, it will discuss that while our workforce is becoming more diverse, the upper and middle management of many companies are not. We have to remember that having diversified workforce is not something a company should have, actually it is some thing that has happened or is soon going to happen due to the fact that we have a more diversified population. (Sutherland, 1996) This is why it is important that we train our management to deal with this inevitability. To the extent of the lack of diversity in management, it is somewhat alarming to see that while we have a rapid increase in the diversity of our population on Long Island, and a pretty diversified workforce, we don’t have well-diversified management in most companies on the island. On Long Island, two-thirds of the companies surveyed in conjunction with a recent Newsday article have no blacks, Hispanics, or Asians at anything above the vice president level. Also, of all the companies surveyed only 13 percent of them said that they had more than one minority in their executive suite. Also while women have seen an increase that has actually out numbered the number of men in professional ranks, women only account for a mere 10 percent of the total number of executive officers in the top 25 companies on Long Island. While women are getting the short end of the stick in the respect to jobs, women and other minorities are also not getting paid as much as men are. Of the 500 highest paid executives on the island and queens only 19 of them were female. That works out to be about 3.8 percent of the 500 executives. In the highest paid and the fastest growing type of business which happens to be technology, management here is represented less than in any other type of business. All women and most minorities excluding Asian Americans hold few to no jobs in this field that includes the manufacturing of computers, communication devices, and other kinds of electronic equipment. Along with technology, the stock brokerage field and securities firms all al... ...at broadcasters must now reach out more into minority communities when hiring new workers. (www.diversityonline.com) While where has been some progress in helping diversify our workforce and management it is obvious that we have a long way to go before the amount of minorities and women in a given local area equal the amount of minorities and women in managerial roles in a given company. It is unfortunate that there is such a lack of diversity because if we continue to limit the number of minorities in management positions and the number of minorities in a given community continue to rise than companies might not be able to meet the needs of their customers. That it is why it is imperative that more companies incorporate some form of a diversity program. If companies don’t start using programs like this it will not only hurt that company and community but it will also hurt the economy. Works Cited 1. www.diversiryonline.com. The Diversity Monitor, February 2000. 2. Gordon, Craig. Newsday Vol.60 No.219. Sunday, April 9, 2000 3. Sutherland, Tyler. April 1996, http://cctr.umkc.edu/wicc/wdpaper.html 4. The Workplace Diversity Initiative, http://www.shrm.org/diversity/

Fashion Magazine Editor

In 1892 Arthur Baldwin Turner founds Vogue in America which will later become one of the most influential fashion magazines in history. In the year 1 900 fashion magazines began to use photographs instead of illustrations. For the editors, this means that they must deal with a new way to structure the magazine. Today, there are hundred ads of fashion magazines that have become an essential for many people. They provide info on the latest clothing trends and newest designers. Many fashion magazines have started doing online sites, so people may start to see more online issues in the future.Thus, as fashion ma gamines change, so will the jobs of the editor. There are many people working in this career in different parts of the world t day. There are currently 1 3,500 people employed as an editor in California alone (â€Å"Editor s†). It is estimated that by 2020 there will be a decline and the amount of people working in this career in California Adolph 3 will be 12,900. This is due to the increasing amount of online fashion editorial s. There is still good news though. This new age of online magazines will open up jobs for on line magazine editors and floggers.Most of the times jobs relating to this career are found I n big cities such as New York or Los Angles. This is because this is where major fashion companion sees, such as Harpers Bazaar and The Cosmopolitan, are located. Therefore, changes in the near future will affect some of the different aspects of one's job. Working as an editor may be a tough and stressful job, but it has its perks. â€Å"A f cushion magazine editor works closely with writers, photographers, and advertisers to ensure that readers are given the most update information regarding fashion trends† (â€Å"Descriptive on of a Fashion Magazine Debited).Fashion magazine editors oversee every part of publication . To BEA magazine editor, you have to follow strict deadlines. When you have deadline s, your hours of work tend to i ncrease. There are not any specific working hours for this career r, but most of your time is spent in an office. One thing that is important for editors to use is socio al media. † you can also reach a wide audience no matter where you live thanks to social media† ( Knobble, Claire, ‘Teen Vogue†). Social media allows the editor to market and promote FRR mom wherever they are.Many fashion magazine editors get to attend runway shows and pre view new collections from famous designers, receive free clothing, and go to some of the e most high end parties. While a magazine editors job can sometimes be a lot of work, it's worth hit. When applying for a job in this field, there are a few things a company will lo fashion magazine editor can be male or female. The ages range because they look at your skills, not your age. You have to be social because it is important to make relations pips with people in the fashion industry, so that later on you can have connections. The ideal EDI tort will have strong Adolph 4 interpersonal skills, and be able to conduct insightful and entertaining interview Killer, Johnny, â€Å"Job Responsibilities†). You also have to be creative and openhanded t o new ideas. In this career, most people start as an intern and work their way up. The majority y of magazine editors have a bachelors degree (â€Å"Magazine Idiom'). These degrees are usual y in journalism or something related to fashion design. It is essential to have a background in FAA scion to do this job.

The Astronomical vs. Meteorological Seasons

If someone asked you when each of the seasons occurs, how would you respond?  Your answer may depend on whether you think of the seasons  in a more traditional, or  a more weather-related way. Astronomical Seasons Change at the Equinoxes and Solstices The astronomical seasons are the ones most of us are familiar with because  their  start dates are  listed on our calendars. Theyre called astronomical because, like our calendar, the  dates of their occurrence are based on the position of Earth in relation to the sun. In the Northern Hemisphere: Astronomical winter is a result of Earths north pole being tilted its farthest away from the sun,  and the suns light aiming directly at southern latitudes. It begins on December 21-22.  Astronomical spring is a result of Earths north pole tilt moving from its maximum lean  away from the sun to one equidistant from the sun,  and of the suns light aiming directly at the equator. It begins on March 21-22.  Astronomical summer is a result of Earth being tilted its farthest towards  the sun, and the suns light aiming directly at north latitudes. It begins on June 20-21.Astronomical fall is a result of Earths tilt moving from its maximum lean  towards the sun to one  equidistant from the sun,  and of the suns light  aiming directly at the equator. It begins on September 21-22. Meteorological Seasons Change Every 3 Months Another  way to define  the seasons is by grouping the twelve calendar months into four 3-month periods based on  similar temperatures. In the Northern Hemisphere: Meteorological winter  begins on December 1. It includes the months of  December, January, and February (DJF)Meteorological spring  begins on March 1 and includes the months of  March, April, and May  (MAM).Meteorological summer  begins on June 1. It includes the months of  June, July, and August (JJA).Meteorological fall  begins on September 1 and includes the months of  September, October, and November (SON). Meteorologists didnt implement this classification just for the heck of it. Rather, they prefer to deal with data from whole rather than fractions of months, and align calendar dates more closely with the temperatures felt during that period, the scheme (which has been around since the early- to mid-1900s) allows weather scientists  to more easily compare weather patterns from one season to another -- something the astronomical convention makes cumbersome due to seasonal lag (the delay in seasonal temperatures settling in). Which Set of Seasons Wins Out? The astronomical seasons are the more traditional way of defining our four seasons. Although folks may not be used to the meteorological way, in a lot of ways its the more natural scheme for how we live our lives today. Gone are the days when we pore over the happenings of the celestial heavens and organize our lives accordingly. But organizing our lives around months and similar stretches of temperatures is more true to our modern reality.

Social Awarness in Writing Essay - 653 Words

People are always in a haste when they try to express their feelings verbally, however, in the case of writing those feelings, it becomes a challenge. It takes practice and commitment to improve ones writing; with this class I have been able to do so. Through this class, I have learned skills on how to properly express those feelings. In addition, this class was a big transition from high school, however, it has helped me to improve my writing skills. Even though I have improved, I still have weaknesses that I would hope to improve on in EN 102. However, overall this course not only improved my writing skills but my social awareness. The biggest improvement I have made in this course would be my passion to write again.†¦show more content†¦Grammar has been the most common problem within all my writings since high school. I have practiced reading my papers aloud, read study guides, practice with teachers, however, this aspect of writing has been a downfall for me. Though my p apers may be organized, the lack of strong vocabulary and elimination of common mistakes has been the hindrance of my papers because I do not understand how to improve it. For EN 102, the goal I wish to accomplish are methods on how to improve my grammar. By the end of EN 102 I want to be able to review prior papers, edit and understand as to where I went wrong. I write a lot, however, it is always the same mistakes. I would correct them, however, the mistakes typically occur in different styles, whether comma splice or verb usage. I know what type mistakes are possible to write however, I have a difficult time recognizing those issues. Methods I would use on how to improve my grammar is to find a tutor or by visiting the writing center more often. If I were to focus on the dynamics of writing, maybe I would be able to recognize the mistakes while writing. For example, as I write a sentence, I reread the sentence aloud while reciting the sentence to hear if the sentence flows properly. This strategy works occasionally, however, since it is hard for me to recognize the issue, this strategy does not workShow MoreRelatedTribulations of the Self (Sociology) Essay1067 Words   |  5 Pages/b/centerbrbrThis essay will seek an explanation of what constitutes the tribulations of the self according to Anthony Giddens (1991). In the first part of this paper, I discuss some central ways language has been viewed focusing the review on social constructivist writings as well as those stemming from the study of human development. In the second part of this paper, I discuss data that leads to the reconsideration of aspects of the language - selfhood interface. I conclude by suggesting some future avenuesRead MoreCultural Awarness Of Russia By Ssg Michael Mosley1099 Words   |  5 Pages CULTURAL AWARNESS OF RUSSIA BY SSG MICHAEL MOSLEY SGL. 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The Most Important Of Writers Developed With A New Type Of...

American Modernist writers experimented with a new type of fictional writing in the 1920’s through the 1930’s during and after the war. One of the most important of these writers was John Dos Passos. Dos Passos was a creative novelist where in his writing he analyzed his love/hate relationship with the traditions of American life and consistently questioned the American dream (Wagner-Martin). His full name was John Roderigo Dos Passos. He was born on January 14th, 1896 in Chicago Illinois. His father, John Randolph Dos Passos, was a wealthy lawyer who could afford to give him the best education growing up. In 1907, he was sent to study at the Choate school in Wallingford, Connecticut (Donne). He then went with a private tutor on a six-month tour of France, England, Italy, Greece, and the Middle East in order to study the masters of classic art, architecture, and literature (Donne). In 1913, he attended Harvard University. 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The gastrointestinal tract Free Essays

string(84) " the first in vitro study investigating the peristaltic reflex in guinea pig ileum\." ABSTRACT The objective of the present study was to examine the effect of 5-HT4 receptor ligands on the peristaltic reflex in the mouse colon. 5-hydroxytryptamine, a neurotransmitter found mainly within the gastrointestinal tract, has been implicated in the contraction and relaxation of smooth muscle within this region. The actions of 5-HT are mediated by at least one or more of seven subtype receptors. We will write a custom essay sample on The gastrointestinal tract or any similar topic only for you Order Now The receptor subtype that will be the focus of attention in this study is the 5-HT4 receptor. Segments of the proximal colon obtained from MF1 mice, were cannulated at the anal and aboral ends, and secured horizontally in a water jacketed bath containing oxygenated Krebs solution. The intraluminal distension pressure was controlled by adjusting the elevation of the reservoir, and the volume ejected to the aboral side was recorded and measured via a a pressure transducer and Power Lab system using Chart v4.1.2 software for Windows.. All drugs were administered serosally. Cumulative concentration response curves of 5-HT and tegaserod (agonists) were obtained by adding increasing concentrations of drugs at an interval of 5-15 minutes. The antagonists GR113808 and SB204070 were added to the tissues after regular peristalsis was obtained and allowed to equilibrate for 15 minutes, after which either 5-HT or tegaserod were added cumulatively. All results are expressed as mean ±SEM from number of animals indicated by n. A regular peristalsis was established before the addition of 5-HT (average rate of peristalsis was 77 ±7, n=7. 5-HT facilitated peristalsis at 10-7M and further cumulative addition of 5-HT caused a slow decrease in peristalsis until at 10-4M, rate of peristalsis was inhibited. In all tissues in which peristalsis was inhibited, it recovered once tissue was washed. In the presence of SB204070 and GR113808, there was no significant change in the rate of peristalsis. The addition of tegaserod produced only a slow decrease in peristalsis until peristalsis was abolished in all tissues at 10-4M. The peristalsis abolished by tegaserod could not be re-established in any tissue by washing. In all tissues, it was possible to obtain peristalsis so the effects of drug testing could be established. The addition of the 5-HT4 selective receptor antagonists, SB204070 and GR113808, showed no significant change in the concentration-response curves. The partial 5-HT4 agonist, tegaserod, also did not facilitate peristalsis in the current study. Both these findings suggest that the 5-HT4 receptor is not implicated in the mouse proximal colon INTRODUCTION 1.1 The gastrointestinal tract The digestive system is a vital component of the human body; the overall function being to provide nourishment for over a trillion cells within the body. To be able to do this, the digestive system is specialised to ingest food, propel it through the digestive tract, digest it, and absorb water, electrolytes and other nutrients from the lumen of the gastrointestinal tract (Seeley et al, 2006). The absorbed substances are transported to the cells, via the circulatory system, whilst the undigested substances are eliminated from the anus. The digestive system consists of the main digestive tract, a tube extending from the mouth to the anus, as well as its associated component organs and accessory organs, which are primarily glands located outside the digestive tract that secrete fluids into the digestive tract (Seeley et al, 2006). The component organs include the oral cavity (mouth), pharynx (throat), oesophagus, stomach, small intestine, large intestine and anus. The accessory organs include three pairs of salivary glands, the exocrine pancreas and the exocrine liver. To enable the homoeostatic environment within the body to be maintained, it is vital that the digestive system is functioning efficiently. The large intestine, which consists of the caecum, colon and rectum, has sufficient homeostatic functions, and contributes to the overall stability of the homoeostatic environment within the body. The colon is the central part of the large intestine, and constitutes the last 150cm of the gastrointestinal tract. It i s approximately a 6cm tube, which extends from the ileum to the anus. Its main function is to store faecal material and regulate its release into the external environment (Smith et al, 2006). It also produces a thick mucous secretion, which lubricates the passage of faecal material during defecation. The gastrointestinal tract of a mouse consists of the oesophagus, stomach, small intestine and large intestine. The mouse colon is similar to the human colon, consisting of the ascending, transverse and descending parts but lacking the sigmoid part (Cook, 1965). http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/G/GITract.html The main physiological processes of the digestive system are digestion, absorption, motility, secretion, and excretion. Digestion involves the breakdown of larger molecules to smaller ones (i.e. glucose and amino acids) to allow efficient utilisation and absorption of these molecules. The ingested material and secretions are transported across the epithelial cell membrane, mainly within the small intestine. Subsequently, the transported molecules enter the circulation; a central physiological process of the digestive system. The gastrointestinal tract is approximately a 15 feet long tube, and food must be moved along it to reach the correct sites for digestion, mixing and absorption (Smith et al, 2001). This process, known as peristalsis, is aided by the smooth muscle lining the tract, which contracts and relaxes mixing the ingested material, whilst at the same time propelling it through the tract. Propulsion of the intestinal contents is a crucial part of digestion that depends on the coordinated activity of circular and longitudinal smooth muscles brought about by the peristaltic reflex (Shiinaa et al, 2005). The peristaltic reflex is initiated by either stimulation of the gastrointestinal mucosa or by stretching of the intestinal wall, resulting in a circular contraction behind the stimulus and an area of relaxation in front of it (Shiinaa et al, 2005). This wave of contraction moves in the oral-anal direction, and subsequently propels the contents within the lumen forward. The reflex is co-ordinated by the intramural nerve plexuses within the intestine and so, can be obtained even in the isolated tissues. Many studies investigating the mechanisms which mediate intestinal motility have predominantly focused on peristalsis. Trendelengburg (1917) carried out the first in vitro study investigating the peristaltic reflex in guinea pig ileum. You read "The gastrointestinal tract" in category "Essay examples" Within the ileum, the reflex was found to consist of contractions of both the longitudinal and circular muscles that were both regular as well as coordinated. The increase in intraluminal pressure, which causes the ileum to distend, is followed by an increase in longitudinal muscle contraction, and subsequently, by an increase in circular muscle contraction, which propels the contents towards the anal section (Trendelengburg, 1917). Gastrointestinal disorders are a common problem in today’s society, and many lead to long term diseases and even morbidity, as well as having a negative impact on healthcare costs (Crowell et al, 2004) However, due to the complexity and the differing functions of the various organs of the GI tract, the treatment of disorders within the tract is a very complex task and has not, as of yet, been fully understood. Diseases of the colon can lead to a whole host of illnesses, including diarrhoea, constipation, Crohn’s disease, Inflammatory Bowel disease, Irritable Bowel Syndrome (IBS), and many more. Symptoms occurring outside of the GI tract, in particular symptoms associated with ibs, including anxiety, depression and schizophrenia, have been related to the morbidity of such disorders. It has been suggested by research, that altered levels of the neurotransmitter, 5-hydroxytryptamine (serotonin), may lead to both intestinal and extra intestinal symptoms in IBS, as well as being implicated in other functional bowel diseases It is therefore important that further studies are carried investigating the link between 5-hydroxytryptamine and disorders of the gastrointestinal tract, and to further understand the pathogenesis of these disorders, so that new, more effective treatments can be formulated. 1.25-hydroxytryptamine 5-hydroxytryptamine, also more commonly referred to as serotonin, is a monoamine neurotransmitter, and is predominantly synthesised, stored and released in the enterchromaffin cells of the intestinal mucosa (Costedio et al, 2007). According to Gershon et al (1965), 5-HT is synthesised through the action of two tryptophan hydroxylases, TpH1 and TpH2, which are found within the enterochromaffin cells and neurons. Approximately 95% of all mammalian 5-hydroxytryptamine is found within the gastrointestinal tract (Sanger, G.J, 2008) 5-HT initiates the peristaltic and secretory reflex, and transmits information to the central nervous system, by activating both the intrinsic and extrinsic primary afferent neurones (Sikandar et al 2009). It can also modulate a wide range of biological processes such as mood, cognition, perception, feeding behaviour, smooth muscle contractility, and platelet aggregation (Setola et al, 2003). Within the guinea pig ileum, 5-HT has been found to cause both facilitation and inhibition of peristalsis (Tuladhar et al), and has been found to facilitate peristalsis, when added serosally in the marmoset ileum (Tuladhar et al, 1996). The actions of 5-HT, particularly contraction or relaxation responses, are mediated by at least one or more of seven subtype receptors (Setola et al, 2003), ranging from 5-HT1 to 5-HT7. 5-HT1 and 5-HT2 receptors have been further subdivided, as can be seen in figure 2.With the exception of the 5-HT3 receptor, the other receptors are, at molecular level, G protein couple metabotropic receptors which span the membrane. The 5-HT3 receptor is a ligand-gated ion channel (Barnes et al, 1999). Many 5-HT receptors can now be associated with various physiological responses, ranging from modulation of neuronal activity and transmitter release to behavioural change (Barnes et al, 1999). Receptor Subtype Transduction Mechanism Localization Function Specific Agonists Specific Antagonists 5-HT1AvAC (Gi/o)Limbic system (hippocampus, lateral septum, cortical areas), mesencephalic raphe nucleiHyperpolarization, modulation of neurotransmitter release, anxiolysis, hypothermia, hyperphagiaXaliprofen (2491) S 14506 (1771) Ipsapirone (1869) BP 554 (0556) U 92016A (2739) Tandospirone (2854)*MM 77 (0933) NAN-190 (0553) Spiroxatrine (0631) (S)-WAY 100135 (1253) 5-HT1BvAC (Gi/o)Basal ganglia, striatum, amygdala, trigeminal ganglion, vascular smooth muscleAutoreceptor, locomotion, hypophagia, hypothermia, modulation of neurotransmitter release, vasoconstrictionCGS 12066B (0638) CP 93129 (1032) CP 94253 (1317) 5-Nonyloxytryptamine (0901)GR 55562 (1054) Isamoltane (0992) SB 224289 (1221) NAS-181 (1413) 5-HT1DvAC (Gi/o)Basal ganglia, hippocampus, cortex, spinal cord, vascular smooth muscleAutoreceptor, modulation of neurotransmitter releaseL-694,247 (0781) GR 46611 (0864) PNU 109291 (2556) PNU 142633 (1985)BRL 15572 (1207) Cyanopindolol (0993) LY 310762 (3078) 5-ht1EvAC (Gi/o)Cortex, caudate putamen, claustrum, hippocampus, amygdalaUnknownBRL 54443 (1129)– 5-HT1FvAC (Gi/o)Hippocampus, cortex, dorsal raphe nucleus, uterusSpeculative role in visual and cognitive functionBRL 5443 (1129) LY 344864 (2451) LY 334370 (3079)– 5-HT2A^ PLCForebrain, caudate nucleus, nucleus accumbens, hippocampus, olfactory tubercle, vascular smooth muscle, blood plateletsNeuronal depolarization, head twitch, hyperthermia, modulation of neurotransmitter release smooth muscle contraction, platelet activationTBC-2 (2592)R-96544(1742) Spiperone (0995) MDL 11,939 (0870) 4F 4PP (0523) Risperidone (2865) 5-HT2B^ PLCBrain, stomach fundus (rat), gut, heart, kidney, lungContraction of the stomach fundus, anxietyBW 723C86 (1059)SB 204741 (1372) LY 272015 (3077) 5-HT2C^ PLCChoroid plexus, cortex, limbic system, basal gangliaHypolocomotion, hypophagia, penile erection, hyperthermia, anxiety, v noradrenalin and dopamine releaseMK 212 (0941) Ro 60-0175 (1854) WAY 161503 (1801) CP 809101 (3041) 1-Methylpsilocin (3017)N-Desmethylclozapine (1007) RS 102221 (1050) SB 242084 (2901) 5-HT3Ion channel (Na+, K+, Ca2+)Dorsal vagal complex, hippocampus, amygdala, caudate, cerebral cortex, heart, intestinesAnxiety, cognition, pain , reward/withdrawal, vomiting reflex, vasodilation, intestinal tone and secretionSR 57227 (1205) Quipazine (0629) 1-phenylbiguanide (0969) m-chlorophenylbiguanide (0440)MDL 72222 (0640) Tropisetron (2459) Y-25130 (0380) Ondansetron (2891) Granisetron (2903) 5-HT4^ AC (Gs)Cerebral cortex, limbic areas, hippocampus, colliculus, intestinesLearning and memory, visual perception, anxiety, motor coordination, arousal, smooth muscle relaxation, modulation of neurotransmitter releaseCisapride (1695) RS 67333 (0989)* RS 67506 (0990)* CJ 033466 (3089)*GR 113808 (1322) GR 125487 (1658) RS 39604 (0991) RS 23597-190 (0728) 5-ht5Av AC (Gi/o)Amygdala, hippocampus, caudate nucleus, cerebellum, hypothalamus, thalamus, substantia nigra, spinal cordModulation of exploratory behavior and locomotion–SB 699551 (3188) 5-HT6^ AC (Gs)Striatum, olfactory tubercles, nucleus accumbens, hippocampus, stomach, adrenal glandsMemory and learning, modulation of neurotransmitter release5-Methyl-5-hydroxytryptamine (0558) EMD 386088 (2382)SB 258585 (1961) Ro 47-1816/001 (2911) SB 399885 (3189) NPS ALX Compound 4a (3285) 5-HT7^ AC (Gs)Thalamus, hypothalamus, hippocampus, cerebral cortex, amygdala, GI and vascular smooth muscle, heartCircadian rhythms, smooth muscle relaxation, nociception, hypotension, modulation of REM sleep, learning and memory, LH releaseAS 19 (1968) LP 44 (2534) LP 12 (2925)Pimozide (0937) SB 269970 (1612) SB 259719 (2726) Figure 2: A table summarising the properties of 5-HT receptors and subtypes (http://www.tocris.com/pharmacologicalBrowser.php?ItemId=5101) 1.3 5-HT4 receptor subtype The receptor subtype that will be the focus of attention in this study is the 5-HT4 receptor subtype. These receptors are located primarily in the nigrostriatal and mesolimbic systems and smooth muscle in the gastrointestinal tract, and play a role in gastrointestinal motility (Craig Clark, 1989), as well as in anxiety, visual perception, memory and learning. The 5-HT4 receptors on intrinsic primary and afferent neurones, are activated by endogenous serotonin released from enterchromaffin cells, in response to mechanical or chemical stimuli. These neurons release transmitters such as calcitonin gene-related peptide (CGRP), activating interneurons which in turn stimulate excitatory neurons on the orad side of the mucosal stimulus and stimulate inhibitory neurons on the caudad side (Ji et al, 2004). Subsequently, this results in peristaltic reflexes occurring at the site of the originating stimuli. The effect of 5-HT4 receptor modulated peristalsis has been found in guinea pig ileum (Tuladhar, 1994; Tuladhar et al, 1995). Also, stimulation of 5-HT4 receptors have been reported to enhance the peristaltic reflex in the rat distal colon (Kadowaki et al, 2002). 5-HT4 receptor agonists, such as tegaserod and 5-HT, stimulate gastrointestinal motility and secretion through release of acetylcholine from excitatory neurones. It is important to note that 5-HT4 agonists strengthen, rather than directly activate the peristaltic reflexes 1.45-HT4 receptor agonists and antagonists The 5-HT4 receptor agonists that will be focus of this study will be tegaserod and 5-hydroxytryptamine (as mentioned above), and antagonists will be GR113808 and SB204070. Tegaserod [3-(5-methoxy-1H-indol-3-ylmethylene)- N-pentyl-carbazimidamide] hydrogen maleate, is a partial 5-HT4 agonist that has been implicated in gastro-intestinal motility. In the guinea pig ileum, tegaserod was found to stimulate peristalsis by increasing the number of circular muscle contractions (Ji et al, 2004). It has been used in the treatment of symptoms of irritable bowel syndrome, including abdominal pain, bloating and constipation (Muller-Lissner et al, 2001). The responses mediated by 5-HT4 receptors have been greatly facilitated by a number of highly selective antagonists e.g. GR113808, SB204070 SB204070 (1-Butyl-4-piperidinyl)methyl-8-amino-7-chloro-1,4-benzodioxane-5-carboxylate hydrochloride) is a selective 5-HT4 serotonin receptor antagonist. In the guinea pig distal colon, SB204070 was found to antagonize 5-HT4 receptor mediated-contractions Although the nature of the antagonism is quite complex, it has been suggested that SB204070 acts has a pseudo-irreversible antagonist (Wardle et al, 1994). GR113808 (1-methyl-1H-indole-3-carboxylic acid, [1-[2-[(methylsulfonyl)amino]ethyl] -4-piperidinyl]methyl ester) is a potent, selective 5-HT4 receptor antagonist. In the guinea-pig ascending colon, GR113808 behaved as an antagonist of 5-hydroxytryptamine -induced contraction, with a high affinity for the 5-HT4 receptor (Gale et al, 1994). 1.3Aims of the study The aims of our investigation were to investigate whether 5-HT4 receptor ligands were able to modulate the peristaltic reflex within the mouse proximal colon. This study also allowed us to investigate the effect of pharmacological manipulations that have been designed to study the role of 5-hydroxytryptamine on the peristaltic reflex within this region of the intestine. This study was undertaken using a range of 5-HT4 receptor agonists and antagonists. METHOD 2.1 Krebs solution The Krebs-Heinslet solution was prepared at the start of the experiment. To prepare one litre of the solution, 2.1g of sodium hydrogen carbonate (NaHCO3) and 2g of glucose were dissolved in 300ml of dissolved water. 40ml of the Krebs-Heinslet concentration was added to the solution, and the preparation was made up to 1 litre using distilled water. It was found that 5 litres was an adequate volume for the experiment, therefore this was prepared by multiplying each quantity by 5. The marriotte bottle containing the Krebs-Heinslet solution was attached to the apparatus, and used to wash out each organ bath three times, and then added to the required level. 2.2 Preparation of the tissue The experiment was carried out using MF1 mice. The animals were killed by cervical dislocation, and the GI tract was removed. Segments of the proximal colon (approx. 2-3cm) were carefully dissected on a polystyrene board, taking care not to puncture the colon and to disturb it as little as possible. This section was then quickly transferred to the water jacketed glass bath, which contained Krebs-Heinslet solution aerated with 95% oxygen and 5% CO2, and maintained at 37OC. This was to prevent hypoxia of the tissue and abnormal temperature. All tissues were equilibrated for at least 20 minutes prior to the start of the experiment. The oral end of the proximal colon was cannulated to the inflow glass tube, which was connected to the reservoir containing saline solution, and secured with thread. The intraluminal contents of the colon were allowed to expel naturally via peristalsis, brought about by the raising of the height of the reservoir by 4cm. After the contents had been expelled, the reservoir was lowered and the aboral end was then cannulated to the opposing outflow glass tube. The tissue was then left to equilibrate for at least 20 minutes prior to the start of the experiment. Finally, to induce peristalsis, the intraluminal pressure was raised, by raising the reservoir by 4cm for at least 15 minutes, until peristalsis became regular and the drugs could be administered; the height of the reservoir needed to achieve steady peristalsis was determined in preliminary experiments. 2.3 Experimental preparation The outflow tube was connected, via a plastic tube, to a T glass tube, which was open to the atmosphere. Changes to the volume of fluid driven into this vertical tube during peristalsis were measured as a pressure changes, and recorded using pressure transducers connected to a quad bridge amplifier and Power Lab system using Chart v4.1.2 software for Windows. Before the proximal colon was cannulated, the computer software was calibrated to zero, and set to commence recording. Figure 3: A schematic diagram representing apparatus used to study peristalsis in mouse proximal colon. The peristalsis trace on the power lab software was recorded as a series of peaks and troughs. During peristalsis the peaks were formed when the tissue contracted, and the troughs formed when the tissue relaxed. This cycle was repeated with each peristaltic stroke. 2.4 Administration of drugs After regular peristalsis had been established, the drugs could be administered serosally. A cumulative response curve for the agonist tegaserod was obtained by adding increasing concentrations of tegaserod (0.01 µM– 10 µM). In the preliminary experiments, it was found that tegaserod 10-2M did not allow the tissue to exhibit peristalsis sufficiently, and was too potent, therefore the highest concentration used was 10-3M. Each concentration had a 15 minute contact time with the tissue before the next concentration was administered. The volume ejected and the rate of peristalsis was measured and recorded. Changes to the rate of peristalsis were then compared to the control values obtained 15 minutes prior to administering the first drug. In the preliminary experiments, it was found that washing the tissue between each drug administration had a negative effect on peristalsis, and subsequently the tissue didn’t recover. Therefore drugs were administered continuously wit hout washout. This process was repeated with the agonist, 5-HT, with concentrations ranging from 0.1 µM-100 µM. To examine the effects of GR113808 and SB204070 (antagonists) on 5-HT and tegaserod responses, either antagonist was added to the tissues after regular peristalsis was obtained and allowed to equilibrate for 15 minutes, after which either 5-HT or tegaserod were added cumulatively and their effects on peristalsis were measured as described above 2.5 Statistical analysis All results are expressed as mean ±SEM from number of animals indicated by n. The difference between the values was determined by using the unpaired t test when two groups were compared and using the one way ANOVA followed by Fisher’s PLSD when more than two groups were compared. 2.6Consideration of safety issues The chemicals used within this investigation were obtained from Tocris bioscience. To ensure the safety of all members of the group throughout the duration of the investigation, a chemical risk assessment form (COSHH) was formulated and signed by all members. This form highlighted all the chemicals that were to be used throughout the experiment, and the risks and precautions associated with each of them. It was ensured that the precautions were adhered to at all stages of the experiment, and general laboratory regulations were also put into place i.e. no eating or drinking in labs, wearing a lab coat etc. RESULTS The peristaltic reflex was investigated within the mouse proximal colon. Segments of the proximal colon (approximately 3cm in length) were cannulated in vitro, and regular peristalsis was achieved by raising of the intraluminal pressure. Peristalsis was distinguished as circular muscle contractions arising from the oral side and travelling to the anal side. The proximal part of the colon was distinguished from the distal part by striations across the surface, and also by it containing softer faecal pellets 3.1 The effects of 5-HT on the peristaltic reflex in the mouse proximal colon A regular peristalsis was established before the addition of 5-HT (average rate of peristalsis was 77 ±7, n=7). The fluid was ejected from the oral to anal direction. The addition of 5-HT 10-7M caused a significant increase in the rate of peristalsis. At this concentration the rate of peristalsis was 101  ± 8, n=7, which was a substantial increase from the control value. Further cumulative addition of 5-HT caused a slow decrease in peristalsis until at 10-4M, rate of peristalsis, at 56  ± 19, n=7 , was lower than the control at the beginning. In all tissues in which peristalsis was inhibited, it recovered once tissue was washed. 3.2 The effects of the 5-HT4 receptor antagonist, SB204070, on the cumulative addition of 5-HT on the peristaltic reflex in the mouse proximal colon 3.3 The effects of tegaserod on the peristaltic reflex in the mouse proximal colon 3.4The effects of the 5-HT4 receptor antagonist, GR113808, on the cumulative addition Tegaserod on the peristaltic reflex in the mouse proximal colon DISCUSSION Gastrointestinal disorders within humans and animals have become much more common, and as such more effective treatments need to be formulated. Research has implicated 5-hydroxytryptamine within these disorders, and thus the 5-HT receptors, which are involved in gastrointestinal motility, are potential targets for treating such disorders. The present investigation was designed to study the peristaltic reflex within the mouse proximal colon, and further, to investigate the 5-HT4 receptor, which has been found to modulate peristalsis in the guinea pig ileum (Tuladhar et al., 1995). Peristalsis is the principle mechanism controlling the movement of chyme within the intestine, and takes place without the conscious control. The nervous pathway of the peristaltic reflex is entirely intrinsic (Bulbring et al,1958), and therefore we can obtain this reflex even in isolated tissues. The method used to study peristalsis was similar to the one used by Trendelengburg (1917), in which the peristaltic reflex was triggered by raising of the intraluminal pressure, allowing the measurement of different parameters of peristalsis, including the rate of peristaltic stokes and the volume of intraluminal fluid ejected to the anal side with each peristaltic stroke. Within the present study, regular peristalsis was obtained so the effects of the 5-HT4 receptor ligands could be established. Craig and Clarke (1991) suggested that the 5-HT4 receptors had a facilitatory effect on 5-HT in the guinea-pig ileum and this was further confirmed by Tuladhar et al (1993). However, this finding was not reciprocated within the mouse proximal colon. Cumulative addition of 5-HT produced facilitation of peristalsis within the mouse proximal colon, characterised by an increase in the number of peristaltic strokes per hour and thus the rate of peristalsis at 10-7M.. This facilitation was observed at concentrations up until10 -4M, where inhibition of peristalsis was observed. At this concentration, 5-HT desensitised the tissues so no further peristalsis could be established. However, peristalsis was re-established in 6 out of the 7 tissues after washing of the tissues. This facilitatory and inhibitory effect of 5-HT was also observed in various studies carried out by Tuladhar et al, Bulbring Crema (1958) and others. Therefore, this study has shown that the addition of 5-HT in vitro can modulate peristalsis within the mouse proximal colon. At lower concentrations, 5-HT facilitates peristalsis, whereas at higher concentrations 5-HT can both facilitate and inhibit peristalsis. In the present study both GR113808 and SB204070 failed to affect the facilitatory effect of 5-HT in the mouse proximal colon. GR113808 and SB204070 are both highly potent 5-HT4 receptor antagonists (Gale et al., 1994; Wardle et al., 1994). This suggests that the 5-HT4 receptor is not implicated within the mouse proximal; had it been implicated both SB204070 and GR113808 would have antagonised the 5-HT4 receptor mediated contractions, and there would have been a significant decrease in the rate of peristalsis. This is in contrast to the findings by Costall et al (1993), where the 5-HT4 receptor was implicated in the guinea pig ileum, in which it exhibited a facilitatory effect on 5-HT. In the guinea-pig ileum tegaserod has also been shown to facilitate peristalsis ( Ji et al, 2004 ), which was not observed in the current study. This further suggests that the 5-HT4 receptor is not implicated within the mouse proximal colon; as tegaserod is a partial 5-HT4 agonist, had 5-HT4 receptor been implicated, facilitation of peristalsis would have been observed. The inhibitory effect of 5-HT on peristalsis has been reported to involve the 5-HT7 receptor (Tuladhar et al, 2003). Further studies are required to examine the receptor involved in the inhibitory effect of 5-HT in the mouse colon and to examine whether 5-HT7 receptors are involved. It is interesting to note that the inhibitory effect of tegaserod could involve a completely different mechanism as peristalsis could not be recovered by washing in any tissue, in contrast with 5-HT. In conclusion, the current study has shown that 5-HT can both facilitate and inhibit peristalsis. However, the 5-HT receptors mediating these effects are likely to be different from the ones involved in the modulation of peristalsis in the guinea-pig ileum. Further studies are required to establish the receptors involved. REFERENCES ARBAB SIKANDERA, S. V. R., A, AND KAUSHAL KISHOR PRASADA (2009). Role of serotonin in gastrointestinal motility and irritable bowel syndrome. Clinica Chimica Acta, 403, 47-55 BARNES, N. M. SHARP, T. (1999). A review of central 5-HT receptors and their function. Neuropharmacology, 38, 1083-1152. 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APPENDIX Table 1: 5-HT alone S.No -log C (M) RATE OF PERISTALSIS 1 2 3 4 5 6 7 AVG SEM N 1 Before58.7 56.9 71.6 114.9 73.9 77.1 82.2 77 7 7 2 7.00 126.8 77.6 95.1 115.3 119.4 76.8 95.6 101 8 7 3 6.00 120.4 58.1 77.3 102.7 127.7 92.1 70.2 93 10 7 4 5.00 42.9 26.1 61.9 104.5 93.0 67.9 93.7 70 11 7 5 4.00 0.0 0.0 37.9 105.7 113.7 29.8 105.0 56 19 7 Table 1 shows the rate of peristalsis after adding the agonist,5-HT 10-8 – 10-4 M, to mouse proximal colon. The values are expressed as mean ±SEM. Table 2: 5-HT in the presence of SB204070 S.No -log C (M) RATE OF PERISTALSIS 1 2 3 4 5 6 7 AVG SEM N 1 SB-204070 7.00 79.4 129.3 44.1 31.2 101.6 79.2 82.8 78.2 12.4 7 2 5-HT 5.00 149.9 124.6 71.3 30.2 102.7 58.8 95.1 90.4 15.3 7 3 5HT 4.00 113.8 132.2 19.7 27.9 96.3 51.2 130.3 81.6 18.1 7 4 5HT 3.00 90.8 114.9 23.0 25.9 99.2 77.2 0.0 61.6 16.8 7 5 5HT 2.00 0.0 122.1 0.0 0.0 0.0 55.8 0.0 25.4 17.9 7 Table 2 shows the rate of peristalsis after adding 5-HT 10-5 – 10-2 in the presence of the 5-HT4 antagonist, SB204070 10-7M, to the mouse proximal colon. The values are expressed as mean ±SEM. Table 3: Tegaserod alone S.No -logC (M) RATE OF PERISTALSIS 1 2 3 4 5 AVG SEM N 1 Before 42.6 45.6 151.3 45.6 116.6 80.322.5 5 2 8.00 40.9 40.9 127.3 41.3 123.0 74.7 20.6 5 3 7.00 38.7 35.2 107.4 32.6 0.0 42.8 17.5 5 4 6.00 31.1 38.1 97.9 27.9 123.3 63.7 19.6 5 5 5.00 0.0 0.00 0.00 0.0 45.4 9.0 9.0 5 Table 3 shows the rate of peristalsis after adding the agonist, tegaserod 10-8 – 10-5 M, to mouse proximal colon. The values are expressed as mean ±SEM. Table 4: Tegaserod in the presence of SB204070 S.No -logC (M) RATE OF PERISTALSIS 1 2 3 4 5 AVG SEM N 1 BEFORE 99.4 107.5 121.2 124.3 105.4 111.5 4.7 5 2 SB-204070 7.00 64.5 98.1 65.1 59.8 53.6 68.2 7.7 5 3 Tegaserod 8.00 100.1 105.8 91.3 110.8 54.3 92.5 10.0 5 4 Tegaserod 7.00 107.3 122.2 74.5 72.5 59.7 87.3 11.7 5 5 Tegaserod 6.00 111.4 113.4 99.2 90.5 83.799.6 5.7 5 6 Tegaserod 5.00 0.00.0 104.9 213.4 75.7 78.8 39.5 5 Table 4 shows the rate of peristalsis after adding tegaserod 10-8 – 10-5 in the presence of the 5-HT4 antagonist, SB204070 10-7M, to the mouse proximal colon. The values are expressed as mean ±SEM. Table 5: Tegaserod in the presence of GR113808 S.No -logC (M) RATE OF PERISTALSIS 1 2 3 4 5 6 7 AVG SEM N 1 BEFORE 33.0 108.2 129.9 50.7 31.9 34.1 35.0 64.8 17.6 7 2 GR113808 6.00 15.6 82.6 121.6 47.6 25.2 18.4 19.6 52.0 17.2 7 3 Tegaserod 8.00 37.8 267.2 105.9 48.0 22.2 26.12 21.5 75.5 33.8 7 4 Tegaserod 7.00 71.3 339.7 112.2 49.7 17.4 24.00 9.2 89.0 43.9 7 5 Tegaserod 6.00 74.4 277.4 49.0 37.2 19.9 14.53 0.0 67.4 36.2 7 6 Tegaserod 5.00 20.1 0.0 0.0 30.7 -1.5 10.02 0.0 8.4 4.7 7 Table 5 shows the rate of peristalsis after adding tegaserod 10-8 – 10-5 in the presence of the 5-HT4 antagonist, GR11380810-6M, to the mouse proximal colon. The values are expressed as mean ±SEM. How to cite The gastrointestinal tract, Essay examples