SUMMARISING DATA.UNDERTAKING STATISTICAL TESTS. APPLIED MEDICAL Essay

SUMMARISING DATA.UNDERTAKING STATISTICAL TESTS. APPLIED MEDICAL STATISTICS - Essay Example categorized by 0 and 1 where 0 shows little or no pain and 1 shows severe or troublesome pain (Pain), Baby’s Birth weight (kg) (babyweight), Age entered in categories where 1 shows under 25, 2 shows 25-29, 3 shows 30-34, 4 shows 35 and over(agecat), the patient had any previous children or not recorded as 1 and 0 where 1 shows yes and 0 shows no (prevChildren), Depression level that was also scaled where the highest number show worse depression (depression) while the last variable that was not included but was needed to be calculated for section B is weight gained during pregnancy in kgs calculated by subtracting Weight1 from Weight2. All the statistics seem to lie within the normal range i.e., -2 to +2, thus it can be inferred that the given sample has somewhat symmetrical normal distribution. However, in the given case, the descriptive statistics for some variables seem meaningless including pain, idnum, agecat, prevChildren and depression and therefore not incorporated in t he table provided. Section B B1. Hypothesis Testing In order to explore the relationship between age and back pain, the following hypothesis was drawn. Ho: There exists no association between back pain and age of patient H1: There exists an association between back pain and age of patient Since both variables involved are ordinal, therefore in order to estimate a significant association between them, Chi-square test has been conducted on SPSS. The Chi squared test requires fulfilment of two assumptions. One of these require that both of the variables employed should be assessed at nominal level while the second requires that the independent variables should also be consisted of two or more independent groups (categorical). Both of these assumptions have been met by our sample data. It appears that the highest percent of patients having severe back pain fall in the 2nd category of age while most of the patients that experience little or no pain were of age category 1. Chi-Square Test s Value df Asymp. Sig. (2-sided) Pearson Chi-Square 8.657a 3 .034 Likelihood Ratio 8.758 3 .033 Linear-by-Linear Association 7.042 1 .008 N of Valid Cases 170 a. 0 cells (0.0%) have expected count less than 5. The minimum expected count is 8.68. The observed value of Chi-squared statistic is 8.657 with 3 degrees of freedom. Since the cross tabulation table involved 2 rows and 4 columns, the Pearson seems to be the suitable chi-squared statistic. From the above table, the p-value is found to be equal to 0.034 which is less than 0.05 significance level. This P- value suggests that we can reject the null hypothesis indicating no association between back pain and agecategory. Therefore, it can be concluded that at 0.05 significance level, there exists a statistically significant relationship between back pain and age category of patient as stated under the alternate hypothesis. B2. Hypothesis Testing In order to explore the association between weight gained throughout pregnancy and the absence or occurrence of back pain, the following hypothesis is drawn. Ho: There

Macroeconomics Bachelor Essay Example | Topics and Well Written Essays - 750 words

Macroeconomics Bachelor - Essay Example It was noted that Central Banks have been successful in their policies which controlled inflation particularly in controlling insulating countries from shocks such as high oil prices. This mechanism will be explained using various macroeconomic principles. The money supply is directly linked with inflation as shown in the famous Quantity Theory of Money (QTM). This model links the level of money supply to the level of prices of goods and services sold, thus inflation. The famous equation of the TQM is MV = PT, where P is the average price level, T is the volume of transactions of goods and services, V is the velocity of circulation, and M is the money supply in the economy. From this equation, we can see that money supply and price level have direct relationship. We should note that TQM assumes that V and T are constant in the short term, leaving only M and P variable. Consequently, when the money supply doubles, the price level in the economy also doubles. Thus, Central Banks can either increase or decrease the money supply in order to do the same in inflation. In the statement being analyzed, Central Banks are able to avoid wage-price spirals (which are considered P in the QTM) by pursuing a contractionary monetary policy. According to Mishkin (2004), lowering the money supply is done by raising discount rates which discourages bank borrowings, open market sale which tightens reserves and monetary base, and raise the reserve requirement among banks which shrinks the available funds for banks to grant as loans to borrowers. Also, another method usually done in open economies and has replaced monetary targeting is called inflation targeting. Inflation targeting is "an economic policy in which the central bank of a country estimates and makes public a projected or 'target' inflation rate and then attempts to steer actual inflation towards the target through the use of interest rate changes and other monetary tools (Inflation Targeting 2006)." Instead of directly controlling inflation by changing the level of money supply, central banks opted to manipulate interest rates. As interest rates and inflation are inversely related, the central bank raises interest rates if inflation appears to move above its target. Meanwhile, if inflation appears to be below the target, the central bank will lower interest rates. This policy has been adopted first by New Zealand in 1989. Inflation targeting has also been adopted by countries like the United States, Britain, South Korea, and Brazil. Inflation targeters have also set a time horizon over which to reach their targets. This usually depends on how high the starting rate of inflation is relative to the desired rate. Since, inflation targeting requires transparency; central banks periodically release inflation reports, and press statements (IMF 2003). 2. Outline the effects of such monetary policy on price expectations in the central bank's domestic economy. Inflation targeting, in order to be fully effective in curbing hyperinflationary expectations require transparency which

How to Write a Research Paper Essay Example for Free

How to Write a Research Paper Essay â€Å"This should be sent to a journal† â€Å"Very good work, but I’m not sure why Alan Bundy hasn’t written this? † Anonymous review: â€Å"Clearly the author fails to understands Walsh’s previous work on this topic† †¢ 1st Lesson †¢ Don’t lose heart †¢ Even if you do everything right, reviewing is imperfect Good papers will be rejected But try to learn from your knock-backs! †¢ †¢ Why you? †¢ Academic career †¢ Publish or perish †¢ Have an impact †¢ †¢ Communicate your results Many have not had the impact they deserve for being bad writers †¢ Writing is fun! Outline †¢ How to get your paper rejected †¢ There are many traps even experienced researchers make Myself very much included †¢ †¢ Hints about how to write a paper †¢ Writing is a craft not a science! How to be rejected †¢ Submit over-length †¢ Blind man: send in 7 pages even though the instructions clearly say 5 Once they see quality of work, they’ll be pleased you sent in more material †¢ How to be rejected Submit over-length †¢ †¢ Diplomatic immunity: put extra 2 pages in appendix Appendices clearly don’t count Similarly, bibliography doesn’t count †¢ †¢ How to be rejected †¢ Submit over-length †¢ LaTeX hacker: †¢ †¢ †¢ change from 11 to 9 point font squeeze inter-line space †¢ No one will ever notice How to be rejected †¢ Submit late †¢ †¢ †¢ Deadlines are meant for everyone else Review schedules have plenty of slack Your paper is worth the wait! How to be rejected †¢ You don’t have room for space wasters like: †¢ Motivation, Background, Related work †¢ Why do review forms always have these on them anyway? How to be rejected †¢ Annoy reader/reviewer †¢ †¢ †¢ †¢ Proof is trivial, when it isn’t Prove the trivial Fail to cite their work Only cite yourself How to be rejected †¢ Annoy reader/reviewer †¢ Don’t bother to spell check †¢ What do computers know about spelling anyway? †¢ Use all the old cliches †¢ â€Å"There has been a lot of interest recently in global constraints. † How to be rejected †¢ Annoy reader/reviewer †¢ Be pompous, boring, †¢ This is science not literature guys, who said it should be fun? †¢ Be overly formal †¢ Theorems and formulas add weight How to be rejected †¢ Annoy reader/reviewer †¢ Make them really work †¢ After all, these are dif? cult concepts and it took you some time †¢ Ignore reviews †¢ Just keep sending paper in, eventually it will be accepted How to write a paper †¢ Hints about how to write †¢ †¢ †¢ Preparation Writing itself Ethics Preparation †¢ Read, read, read! †¢ To learn how to write, read a lot †¢ I spend over 20% of my time reading †¢ 1 day/week in library Read, Read, Read †¢ Related literature †¢ †¢ †¢ So you can cite it So you don’t re-invent wheels So you know what others think are important research questions Read, Read, Read †¢ Other conference/journal papers where you intend to publish †¢ †¢ So you learn the â€Å"house† style So you can place your work within the bigger picture So you learn how to ask good questions †¢ Read, Read, Read †¢ Any sort of literature †¢ Magazines, novels, biographies, †¢ Writing is a skill, learn from others †¢ I read approx one novel/week as a way of trying to learn how to write And I have the luxury of writing in my own language! †¢ Review, Review, Review †¢ Review as much as you can †¢ †¢ †¢ So you see good/bad writing So you see the newest results (but see ethics) So you ask yourself good questions †¢ What is the contribution here? What are the weaknesses? Write, Write, Write †¢ The best preparation to writing is to write †¢ †¢ Writing gets easier the more you do it Writing is easier if you’ve drafted much of what you already need Writing is the best way to organize your thoughts Writing is a good way to record what you have done. †¢ †¢ Writing †¢ Work out the timetable †¢ †¢ †¢ Rushed papers frequently rejected Late papers are almost always rejected If you always write to deadlines, writing will seem more painful than it is Writing †¢ Work out the message †¢ You should be able to convey this in one sentence †¢ â€Å"We propose a new global constraint, provide a ? ltering algorithm and show it useful on some standard benchmarks† Writing †¢ Work out the message †¢ You should be able to convey this in one sentence †¢ â€Å"We identify an important class of symmetry, and show how to break it† †¢ Write to the message! Writing †¢ Distribute the work †¢ †¢ Play to your strengths If you have a native speaker, have them write intro/conclusion †¢ Write to length †¢ Brutally cut papers are frequently rejected Writing †¢ †¢ Structure paper before you write it I write template for paper with sections and subsection headings ? rst †¢ Intro, Background, Theoretical results, Empirical results, Related work, Conclusions Writing †¢ †¢ Start where you are most happy Often write from the middle outwards †¢ Theoretical results, Experiments, , Conclusions, Introduction, Abstract Writing †¢ †¢ Rule of Three Say everything 3 times! †¢ †¢ †¢ Introduce idea (introduction) Develop idea (body of paper) Summarize result (conclusions) †¢ But don’t copy verbatim the same text! Title †¢ Make it meaningful and brief †¢ †¢ Don’t make a joke Remember someone reading reference needs to be able to work out likely contents Good: the TSP phase transition Bad: Easy Problems are sometimes Hard †¢ †¢ Abstract †¢ Executive summary †¢ Try for one sentence or so on: †¢ †¢ †¢ †¢ Motivation Method Key result Conclusions Introduction †¢ †¢ †¢ †¢ What is the problem? Why is it interesting? What are your contributions? What is the outline of what you will show? Introduction †¢ Lure the reader in a with a good ? rst sentence †¢ Bad: There has been a lot of work recently on phase transition behaviour Good: Global constraints are central to the success of constraint programming †¢ Background †¢ Often need to set scene †¢ †¢ †¢ De? ne formalism Get reader up to speed Identify research problem Body of Paper †¢ †¢ †¢ †¢ Derive theoretical results Propose new algorithm Describe system engineered Results †¢ Bullet proof paper †¢ Theoretical results †¢ Experiments only provide a limited view †¢ Experimental results †¢ Theory doesn’t show if results are useful in practice. Related work †¢ Has many purposes †¢ †¢ †¢ You give proper credit to prior work You are not re-inventing wheel You can compare what you do with what has been done before Conclusions †¢ †¢ Remind reader of what you have done Place work in wider context †¢ â€Å"What general lessons might be learnt from this study? † †¢ Flag all the exciting open research directions Acknowledgements †¢ Thank all who have helped you †¢ Provided code, data sets, †¢ Thank ? nancial sponsors Writing †¢ Keep it simple! †¢ †¢ †¢ †¢ Active, not passive Present, not past or future Long words Short sentences Writing †¢ Avoid temptation to include every result you have †¢ †¢ †¢ Paper needs to be coherent Paper needs to be understandable Many papers are rejected for having too many results! Ethics of Writing †¢ †¢ †¢ †¢ Authorship Citation Submission Publication Authorship †¢ Who should be an author? †¢ Anyone who has made a signi? cant contribution May not have written any text! Always err on the side of caution †¢ †¢ Authorship †¢ Who should be an author? †¢ †¢ †¢ Ask! You’ll be surprised how often people refuse You can be sure they’ll not work with you again if they feel they should be Authorship †¢ Should my advisor be an author? †¢ †¢ †¢ In ? rst few years of thesis, probably yes .. Once you graduate, you should (be able to) write papers on your own Again, ask! †¢ Citation †¢ Cite all relevant work †¢ †¢ †¢ Reviews always ask about Related Work You’ll want them to cite you It’s central to the scienti? c method †¢ We stand on the shoulders of others Citation †¢ Do I cite myself for a blind review? †¢ †¢ †¢ Yes! You must credit all previous work Either cite [Author, 2004] Or write â€Å"As Walsh has shown previously [Walsh 2004] † Submission †¢ Can I submit to multiple conferences? †¢ What’s the deal with the disclaimer (†This paper is not under review ..†)? †¢ Can I submit to a journal immediately? †¢ †¢ No hard and fast rules My rule, once reviews are back and paper is effectively in press Publication †¢ Can I publish my conference paper as it is in a journal? †¢ Probably not, even though conference is not archival Most journals ask you to extend conference paper substantially †¢ †¢ Proofs, more experiments, Final words †¢ It takes time to learn how to write †¢ Don’t be put off if at ? rst your have papers rejected All of us have papers rejected †¢ †¢ Spend time learning how to write †¢ It will be worth the investment.

My Life Alert Bracelet Essay Example for Free

My Life Alert Bracelet Essay My Life Alert Bracelet will use many distribution channels to benefit the company success, and use strategies to help promote its product. My Life Alert Bracelet will take advantage of the special promotion provided by our company. We will establish an email database, so we can send customers our special coupons and invite them for the perfect sale events that we offer for that season. We can also attach our coupons to the customer’s receipts to allow future saving on their purchases. Therefore we will be using different advertisements to get our name out to all of the community near and far off. Our goal will be to display the product we offer. Another technique will be to advertise our low coast products to the local community and surrounding areas, by using the free publication aids to attract the attention of the viewers and other vendors that would like to purchase these alert bracelets for their own personal or business uses. Our company plans is to utilize local newspapers advertisements, and making sure we meet with inquiring customers so they will help get the word out through word of mouth from experience. Last but not least we will post flyers out in the local business and the community for the target market. My Life Alert Bracelet will have to persuade the potential audience that they want and need our bracelet for the safety of their family or friends. In the process of being successful with our advertisement can create and also nurture a sense of I want and I need this less expense product to benefit the safety of their family member. The best way our company can measure the effectiveness from our advertisement will be to see how many consumers was aware of our product and the service we offers, meanwhile making contact with the company to purchase our product. After the publicity has simmered down, our company will then compare our current data with our past data in a quarterly session to evaluate our positive success or our negative success of our company. Never the less many people are interested in staying and being more healthier, therefore many people are looking to use the My Life Alert Bracelet to properly identify their medical concerns in the event of an accident or any medical emergency. The M.L.A.B. will help the medical staff or medical personnel to assist you in a timely manner. The promotion strategies that will be utilized in our company will be as follow: 1.Sale Promotion will be one of the methods used to help out with our company promotion strategy. Sale promotion is commonly used for the increase in a sale for a short period. 2. Public Relation it will help develop a positive relationship with the media/media. this will hopefully help the company to handle all negative attention while remaining professional with a successfully mind frame. 3. Personal Selling offering face to face one on one sale to our customers, giving them the best quality sales. 4. Direct Mail this is personalizing the mail by putting the name of the target audience you are trying to reach out too. This will directed to a particular person in hope to increase sales. 5. Sponsorship this is networking in giving another organization the permission to list our product or use our logos. By using this method normally have high profiles that are seen by a large audience. 6. Introduction is when the new company is trying to get the word out that they are in the market we can utilize the push/pull strategies to help push the product towards the introduction stage called the lifecycle. 7. Growth after the M.L.A.B. product line has grown and the target market are happy to accept the lifecycle. We offer true loyalty to our value custom. 8. Maturity at this point our company will take full responsibility to encourage the target audience to purchase our product to benefit a life saving experience. This market research is done to indentify the main goal in purchasing this line of product. The M.L.A.B. main purpose is to help your family member in a time of a serious situation that is not caused intentionally. The alert bracelet will alert the medical staff if your love one wonder off or become ill, it will alarm the emergency hotline, and the emergency staff will place a call to the medical official which will alert the family member of the person condition. This bracelet will alert the medical staff of any medical condition you may have, and any allergic reaction you have or had at one time. The M.L.A.B. is sold at a low price making it affordable for person with insurance or non-insurance persons. We have booths set up at the local Mall or you can stop by the main building to make your purchase. The consumer today has become very demanding. They want high quality products as well as high quality customer service. Delivering value customer service is very important to our company. When there is poor customer service it may bring the value of our company down. The customer are not satisfied, and may bring a gap between the two of us because they might be thinking what should be done, and my company thinking how it should be done causing a dissatisfaction in the mist. When having customer’s complaints that we were not ready to handle at that time can make the customers seek other companies for their service. Our goal is to keep the customers happy at all times, the customers are the main focus because if they are happy then for profit will be greater. In saying that we look forward in customers satisfaction and we make sure we do our best in presenting quality customer service to maintain a quality profits.

The Weak Animal Rights Position

The Weak Animal Rights Position Mary Anne Warren proposes an animal rights argument known as the weak animal rights position. First, I will be describing Warrens description of the positions and the arguments in support of it. Next, I will propose the objection to Warrens position that using sentience as the distinguishing characteristic promotes detrimental environmental policy. Then, I will argue that sentient animals act as an umbrella species that protect the environment. Finally, I will describe why my objection to Warrens argument is the stronger argument. In this paper, I will argue that Warrens weak animal rights position is incorrect and that bad environmental policy can result from her argument. In the paper Difficulties with the Strong Animal Rights Position, Mary Anne Warren argues for an animal rights position called the weak animal rights position. This animal rights position states that all sentient animals have rights; however, the rights of those nonhuman animals are not as strong as those of humans. First, I will describe what Warren means by sentient. Sentient animals means all animals who are capable of have experiences, including experiences of pleasure or satisfaction and pain, suffering, or frustration (Warren, p. 164). This can be simplified to all animals that feel pain. Warrens animal rights position includes a wide range of animals. The position also gives people a method to deal with differences between nonhuman animals rights strength. For example, should mice be given the same rights as an elephant? The weak animal rights position says that the rights of animals from different species can have levels of strength. To justify this claim Warren states that t he strength of animals right is based off of the animals mental sophistication. The more mentally sophisticated an animal is the greater their ability to suffer is, thus the stronger its rights are. It would still be wrong to kill mice without a justifiable reason, but it would not be a wrong as killing an elephant without a justifiable reason (Warren, p166). I will now explain what Warren means by nonhuman animal rights not being a strong as human rights. The weak animal rights position says that the rights given to sentient nonhuman animals can be violated at times when it would not be acceptable to violate human rights. Warren argues that the morally relevant feature that separates humans from nonhuman is that humans are capable of listening to reason. Through reasoned arguments humans chose between actions (Warren, p. 169). Therefore, the rights of animals can be overridden in situations where human rights could not be. The example that is used by Warren is killing rodent to protect our food or to prevent the spread of disease. If humans were spreading disease or stealing from our food supply society would not find it morally acceptable to kill the humans like they would with mice. The weak animal rights position says that killing the mice, in the most humane way possible, is a morally acceptable action if they are causing harm to hum ans (Warren, p. 167). Another example used by Warren is culling deer in over populated areas where there are no longer natural predators due to human interference. Through Warrens animal rights position it is morally acceptable to kill individuals in a way that causes the least amount of suffering if the environment needs protecting so that the animals can live a natural lives. With Warrens example reintroduction of natural predators is necessary, but hunting can be substituted in the beginning to decrease the population size. The weak animal rights position says that we have an obligation not only to the animals lives, but also to protect the environment so that the animals can live a natural life. Therefore, if predators are a natural part of an animals life, the individual rights of that animal can be overridden and predation can be reintroduced in areas where it has been removed from (Warren, p. 168). These strategies would not be acceptable with humans, but because nonhuman animals cannot reason, the ir rights can be overridden in each situation. My objection to Warrants argument is that by only give rights to sentient animals it does not produce good environmental policies. My objection to Warrens argument is that only including sentient animals, as having rights, does not guarantee good environmental policies. I argue that by only finding it morally wrong to harm animals that feel pain other important organism such as plants are downgraded and dismissed. By only giving rights to sentient animals a wide range of animals are left without rights. Imagine that there is an ecosystem where there are only non-sentient organisms like spiders, plants, and microorganisms. According to the weak animal rights position it would morally acceptable to build a hospital here that would completely abolish the entire ecosystem. There are no sentient animals in the ecosystem, so there would not be any suffering. However, eliminating an entire ecosystem is not a good environmental policy. Other organisms that do not feel pain according to Warrens view of sentient do not need to be taken into account. Non-sentient animals or organism still can have important value to the wo rld as a whole. The weak animal rights position does not guarantee good environmental policy. Another example would be if there was some toxin in an environment that only affected non-sentient organisms and animals but caused sentient animals in the area to stop reproducing. The sentient animals do not suffer because of the toxin but the species will eventually go extinct from not reproducing (Katie McShane, 11-15-10). The weak animal rights position does not find this morally unacceptable. Because the sentient animals are not suffering from the toxin their rights are not being violated. However, this is a terrible environmental policy. In my objection to Warrens argument I argue that the weak animal rights position does not guarantee good environment policy. However, by giving sentient animals rights and thus protection they are an umbrella species and the entire ecosystem is protected. The degradation of an ecosystem that contains sentient animals affects the lives, health, pleasure, and pain. If the effects are negative to sentient animals then it is likely that whatever the cause of the environmental degradation would be ratified. For example, if sentient animals will suffer greatly because of a building be built then it would not be morally justifiable to eliminate or degrade an entire ecosystem. The sentient animals act as a protector of the environment in which they are located. The likeliness that there is an environment that does not have sentient animals is unlikely, so ecosystems would be protected because of the sentient animals involved. The conclusion drawn from this paper is that Warrens argument is that using sentient as a distinguishing characteristic to determine what animals have rights creates bad environmental policy. Ecosystems should have value even if they do not include sentient animals as defined by Warren. Ecosystems as a whole should not be discarded. Although there are very few ecosystems that do not include sentient animals, a situation could arise where sentient animals rights are not a factor in an environmental situation. By only allowing sentient animals to have rights ecosystems can be harmed when sentient animals are not involved. As seen with the examples in my objection, entire ecosystems could be destroyed and it would be morally acceptable. Non-sentient organism can have value even though they do not feel pain. Animal rights arguments should not yield poor environmental policies. Animals and ecosystems need to be supported through animal rights, which are not accomplished by Warrens weak an imal rights position. Warren argues for an animal rights position that only sentient animals have rights and that nonhuman animal rights are not as strong a human rights. My objection to Warrens argument shows that only including sentient animals as having rights results in bad environmental policy. My reply to my objection claimed that sentient animals act an umbrella species that protects the environment. The strongest argument was found in my objection. Warrens sentient characteristic does not guarantee good environmental policy decisions.

Development of Dendritic Spines :: Biology Essays Research Papers

Development of Dendritic Spines Neurons have the capability of forming spiny outgrowths on dendrites that are associated with neuroplasticity. Stimulation, especially during post-natal development can lead to activation in the brain, referred to as Long Term Potentiation (LTP), associated with the growth of spines. These dendritic spines, which can number thousands to a single neuron, can have synaptic heads. Greater than 90 percent of synapses in the brain occur on them (1) . Through experimentation it has been found that a spine's glutamate receptors, calcium concentrations, and actin can affect its shape, length, and even presence on a dendrite. In general terms, how do dendritic spines develop and what do they affect in the brain? When a neuron is first formed it does not yet have dendrites, and therefore also does not have dendritic spines. Dendritic filopodia are formed from the dendrites first and then convert into spines after being innervated by synaptic fibers. Spines on different types of neurons attain their peak actin density at different times. Fewer spines are present in adults than children and there is a peak growth time during post-natal development. Adult brains show up to 50% fewer spines than developing brains (2) . Brain disorders, such as strokes, epilepsy, and forms of mental retardation like Fragile X, have been connected to deformations of dendritic spines or the total absence of them on certain neurons. Spines are predominantly found at excitatory synapses where inputs from many areas of the brain arrive. Initially during spine formation N-methyl-D-aspartate (NMDA) is the main growth and development regulator. NMDA is a glutamate receptor found at excitatory synapses in most neurons in the mammalian brain. It contains channels permeable to calcium ions. Ions can accumulate and initiate currents at the head of the spine where the calcium channels are located, separate from the shaft of the dendrite. Weak calcium-induced currents affect individual spines whereas stronger currents can summate to affect multiple spines as well as areas of the dendrite's shaft. LTP is a strengthening of the synaptic connections which occurs when spines are formed. There are several steps to achieve a current in a spine. Magnesium ions block the NMDA receptor sites, but are displaced when a stimulus, such as caffeine, depolarizes the receptor. Calcium ions are then able to pass through and collect within the spine. Once the amount of ions reaches a threshold level the LTP is generated.

Animal Farm, by George Orwell :: Animal Farm Essays

According to Stephen Covey an "Effective leader is one who is putting first things first. Effective management is discipline, carrying it out.† In addition, according to the Merriam-Webster Dictionary, effective means â€Å"producing positive effects†, and a leader is â€Å"one who heads an organization.† In Animal Farm, by George Orwell, Napoleon is the character who portrays these traits along with the trait of practicing utilitarianism. Therefore, Napoleon is an effective leader who increases the economy of Animal Farm and practices utilitarianism, the greatest good for the greatest number. One instance the Napoleon shows effectiveness is in the way he leads the economy of Animal Farm. This evident through Squealer’s facts about how â€Å"†¦production of every class of foodstuff [is increasing] by two hundred per cent, three hundred per cent, or five hundred per cent†¦Ã¢â‚¬ (81). This is so because Napoleon balances the mechanics involving the running of the economy producing positive effects for the farm. In addition, Napoleon leads the farm to produce â€Å"†¦the biggest harvest that the farm has ever seen...† which proves even more the effectiveness of Napoleon (24). One more aspect of Napoleon’s effectiveness shows when Napoleons makes â€Å"The farm more prosperous †¦ and better organized†¦Ã¢â‚¬  (113). Napoleon’s decisions on what Animal Farm should do prove to be effective rendering Napoleon an effective leader in the instance of producing desirable effects for the economy. Another instance that outlines the effectiveness of Napoleon adduces its self in the orders he enforces. When Napoleon â€Å"†¦accept[s] a contract for four hundred eggs a week, the price of [the eggs] pay[s] enough [for] grain and meal to keep the farm going till summer†¦Ã¢â‚¬  was clearly providing the best for the most amount of animals. By doing this, Napoleon harms only a small percentage of the animals while the majority benefits. When â€Å"†¦the animals work like slaves [for the windmill]†¦Ã¢â‚¬  this provides for the future betterment of the farm (54). Again, this is providing the greatest good for the greatest number because the building of the windmill will lead to easier lives for the animals of Animal Farm. These improvements of the farm are prime examples of utilitarianism because they benefit the future of Animal Farm.