Why to get out of the Navy after 10 years of service Essay

Why to get out of the Navy after 10 years of service - Essay Example ed performance of duty until a service member is approved for length of service retirement creates a rebuttable presumption that a service member’s medical conditions have not caused premature career termination. In that situation, the PEB finds these members to be PFit. A finding of PFit means that the evidence presented to achieving retirement eligibility. Members found to be PFit have the same rights within the DES as those found Fit. While members found PFit are not eligible for disability retirement, they are still eligible for retirement under other provisions of law, as well as for evaluation by the Department of Veteran’s Affairs for disability compensation. In this paper we would be discussing on the ground taken by U.S on the separation of naval officers in the past and the reasons for the same. A service member is unfit to continue naval service when one or more physical and/or mental disabilities prevent him or her from reasonably performing the duties of his or her office, grade, rank, or rating. The PEB makes the decision on Fitness by balancing the extent of a member’s disability, as shown through objective medical and performance evidence, against the requirements and duties that the member may reasonably be expected to perform in his or her office, grade, rank, or rating. Typical medical evidence used by the PEB includes a narrative summary written by the Medical Evaluation Board (MEB), history and treatment of the injury or illness, referrals to doctors and sick call, and type and frequency of medication. Performance evidence includes non-medical assessments from the member’s command, personnel records, promotions, awards, and adverse personnel actions. In the period between the Spanish-American War and the U.S. entry into the war in Europe in 1917, new sources of Army officers were experimented with and expanded, federal authority over the militia was extended, and an Army reserve officer corps was established. The Navy formally

Coffee and Tea Essay Example for Free

Coffee and Tea Essay Coffee and tea have existed in the world for a long time. Hundreds of years ago, people who lived in South America started to produce coffee, but the earliest drink likes coffee was made by ancient Arabian. They thought it was a kind of medicine used for stomach. After the 15th century, coffee was spread to other countries such as Egypt and Ottoman Empire by Muslims who were back from Hajj, while in ancient China, Chinese people started to make tea about 3000 years ago. Because of nice environment and weather, the first part of tea plants was discovered in southwest China. After, drink tea became an important culture of Chinese people, and tea began to spread into countries near China. Coffee and tea are similar, but different in some specific area. First, coffee and tea are similar but different in population. People from all around the world like them. For example, British people used to drink a cup of tea with some snacks when they have a rest in the afternoon. Western people enjoy drinking black tea, and some of them mix it with milk to make milky tea. Likewise, most people like drinking coffee, for it often tastes good. In China, more and more people began to drink coffee, and some of whom want to taste better coffee like blue mountain coffee. However, although these two drinks are both popular around the world, coffee is still drunk most by western people, while the most quantity of tea is used in East Asia. People lived in China, Japan, and Korea regarded tea as the main drink. Second, coffee and tea are similar but different in function. Both coffee and tea can refresh people because there is a kind of chemical matter, which is caffeine in both of them. This chemical matter can be used for nerves to make a person feel awake and lively. Also, some experts said that black coffee and green tea can help a person lose weight. But, in contrast, tea has some more functions due to another kind of chemical matter which can’t be found in coffee. This chemical matter that named tea polyphenol whose ability is to relieve the effect that is made by poison. Finally, coffee and tea have similarity and difference in origination. Both of them are made from plants. Thousands of years ago, people lived in Africa planted coffee trees in succeed, and now, Brazil has the most coffee trees in the world. In south of China, there are a lot of terraced fields that grow tea trees. On the other hand, people use leaves from tea to make tea, while they use fruits from coffee plants to make coffee. To sum up, coffee and tea are similar in their population, function, and origination, while they are different of their use in different place, their different chemical matter, and their different material. I suggest that people should drink both coffee and tea so that they can be healthier.

Essay --

Cancer can develop anywhere in the body. Cells grow abnormally and become cancerous because of environmental factors, such as smoking cigarettes and exposure to radiation; genetics, poor diet, lack of physical activity, and even just luck (Stern et al., 2004). Even though genetics play the primary role in the development of cancer, the environment in which one lives also contributes to the chances of getting cancer. Some of the environmental factors that influence the development of cancer include alcohol use, obesity, asbestos, HIV, and Down’s syndrome. Cancer affects people of all ages. In infants and children, genetic abnormalities are generally the primary cause of cancer. Individuals over the age of 55 years old make up more than 80% of all cancers (Stern et al., 2004). 2.3 MYTHS ABOUT CANCER According to Aronson (2010), cancer is a humiliating and punishing disease as its treatments often deny people of the organs that give them their gender-identity, their sense of wholeness, and beauty. After treatment, patients also often feel less than whole. For them, cancer is not just a physical disease but rather a state of mind and a reason for societal quarantine and judgment. It is not discussed freely or accepted objectively. Cancer is seen as a "taint" upon the family, just as HIV is viewed as a disease that needs to be hidden away. There are many misconceptions across all ethnic and racial groups regarding cancer. Many believe that since no one in their family previously had cancer, then they would not get cancer. People also have a false impression that if they are healthy then they would not develop cancer (McGarvey & Brenin, 2005). According to Frymark, there are three chief myths about cancer: 1. Although chemothera... ...e. Among the members of the Solanaceae family, Solanumaculeastrumwas the most common plant used for the treatment of cancer (Koduru, Grierson & Afolayan, 2007). Scientists these days are also investigating traditional medicine for anti-cancerous effects. A popular ayurvedic herb Ashwagandha, frequently known as â€Å"Indian Winter cherry† or â€Å"Indian Ginseng† is used in ayurvedic medicine in a way similar to that Panax ginseng used in traditional Chinese medicine. This herb is normally used for its wide range of health advantages. Withaferin A, which derived from this medicinal plant, it often used for its anti-tumorigenic activity against various cancer cells. Withaniasomnifera flowers are small and green and the roots are mostly used for medicinal purposes. It is cultivated in the drier regions of India such as Punjab and Rajasthan (Singh, Verma, Pandey & Gilca, 2011).

Light Reactions and Plant Pigments

The Effect of Light Reactions on Plant Pigmentation Alyssa Martinez AP Biology 4th pd E. Perkins Abstract In this lab, we were to separate pigments and calculate Rf  values using plant pigment chromatography, describe a technique to determine the photosynthetic rate, compare photosynthetic rates at different light intensities using controlled experiments and explain why rate  of photosynthesis varies under different environmental conditions. In the second part of the lab, we used chloroplasts extracted from spinach leaves and incubated then with DPIP and used the dye-reduction technique. When the DPIP is reduced and becomes  colorless, the resultant increase in light transmittance is measured over a  period of time using a spectrophotometer. If pigments are separated, then Rf values can be determined. Introduction Paper chromatography is a  useful technique for separating and identifying pigments and other molecules from cell extracts that contain a  complex mixture of molecules. As solvent moves up  the  paper, it carries along any  substances dissolved in it. The more soluble, the further  it travels and vice-versa. Beta carotene is  the most abundant carotene in plants and is  carried along near the solvent front since it is very soluble and  forms no hydrogen bonds with cellulose. Xanthophyll contains oxygen and is found further from the solvent front since it  is less soluble in the solvent and is  slowed down by hydrogen  bonding to cellulose. Chlorophyll a is  primary photosynthetic pigment in plants. Chlorophyll a, chlorophyll b, and carotenoids capture light energy and transfer it to  chlorophyll a at the reaction center. Light is  part of a continuum of radiation or energy waves. Shorter wavelengths of energy have greater amounts of energy. Wavelengths of light within the visible spectrum of  light power  photosynthesis. Light is absorbed by leaf  pigments while electrons within each photosystem are boosted to a higher energy level. This energy level is  used to produce ATP and reduce  NADP to NADPH. ATP and  NADPH are then used to  incorporate CO2 into organic molecules. In place of  the electron accepter, NADP, the compound DPIP  will be substituted. It changes chloroplasts from blue to colorless. Methodology Obtain a 50 ml graduated cylinder which has about 1 cm of solvent at the bottom. Cut a piece of  filter paper which will be long enough to reach the solvent. Draw a line about 1. 5 cm from the bottom of the paper. Use a quarter to extract the pigments from spinach leaf cells and place a small section of leaf on top of the pencil line. Use the ribbed edge of the coin to crush the leaf cells and be sure the pigment line is on top of the pencil line. Place  the chromatography  paper in the cylinder and cover the cylinder. When the solvent is about 1 cm from the top of the paper, remove the paper  and immediately mark the location of the solvent front before it evaporates. Mark the bottom of each pigment band and measure the distance each pigment migrated from the  bottom of the pigment origin to the bottom of the separated pigment band and record the distances. Then, turn on the spectrophotometer to warm up the instrument and set the wavelength to 605 nm. Set up an incubation area that  includes a light, water flask, and test tube rack. Label the cuvettes 1, 2, 3, 4, and 5, respectively. Using lens tissue, wipe the outside walls of each cuvette. Using foil paper, cover the walls and bottom of cuvette 2. Light should not  be permitted inside cuvette 2 because it is a control for this experiment. Add 4 mL of distilled water to cuvette 1. To 2, 3, and 4, add 3 mL of distilled water and  1 mL of DPIP. To 5, add 3  mL plus 3 drops of distilled water and 1mL of DPIP. Bring the spectrophotometer to zero by adjusting the amplifier control knob until the meter reads 0% transmittance. Add 3 drops of unboiled chloroplasts and cover the top of cuvette 1 with Parafilm and invert to mix. Insert cuvette 1 into  the sample holder and adjust the  instrument to 100% transmittance. Obtain the unboiled chloroplast suspension, stir to mix, and transfer 3 drops to cuvette 2. Immediately cover and mix cuvette 2. Then remove it from the foil sleeve and  insert it into the spectrophotometer's sample holder, read the percentage transmittance, and record it. Replace cuvette 2 into the foil sleeve,  and place it into the incubation test tube rack and turn on the flood light. Take and record additional readings at 5, 10, and 15  minutes. Mix the cuvette’s contents before each reading. Take the unboiled chloroplast suspension, mix, and transfer 3 drops to cuvette 3. Immediately cover and mix cuvette 3 and insert it into the spectrophotometer's sample holder, read the percentage transmittance, and record. Replace cuvette 3 into the incubation test tube rack. Take and record additional readings at 5, 10, and  15 minutes. Mix the cuvette's contents just prior  to each readings. Obtain the boiled chloroplast suspension, mix, and transfer 3 drops to cuvette 4. Immediately cover and mix cuvette 4. Insert it into the spectrophotometer's sample holder, read the percentage transmittance, and record it. Replace cuvette 4 into the incubation test tube rack and take and record additional readings at 5, 10, and  15 minutes. Cover and mix the contents of cuvette 5 and insert it into the spectrophotometer's sample holder, read the percentage transmittance, and  record. Replace cuvette  5 into the incubation test tube rack and take and record additional readings at 5, 10, and 15 minutes. Results Table 4. 1: Distance Moved by Pigment Band (millimeters) Band Number| Distance (mm)| Band Color| | | | | | | | | | | | | | | | Distance Solvent Front Moved ____ (mm) Table 4. 2: Analysis of Results __ = Rf for Carotene (yellow to yellow orange) __ = Rf for Xanthophyll (yellow) __ = Rf for Chlorophyll a (bring green to blue green) __ = Rf for chlorophyll b (yellow green to olive green) Table 4. 4: Transmittance (%) Time (minutes) Cuvette| 0| 5| 10| 15| 2 Unboiled/Dark| | | | | 3 Unboiled/Light| | | | | Boiled/Light| | | | | 5 No Chloroplasts/ Light| | | | | Analysis of Results Graph Discussion Chromatography  is  a  technique  used  to  separate  and identify pigments and other molecules from cell extracts that contain a complex mixture of molecules. This can be used to identify the pigments that are used in the  process of  photosynthesis. Photosynthesis is the process by which plants use light energy to produce chemical  energy in the form of food. This is where plant pigments come into play because they are the reason why the plant is able to absorb light. Chlorophyll a is one such  pigment. These pigments along with many others are contained in organelles known as chloroplasts. One of the problems encountered during the course of this lab included human error when using the spectrophotometer. The student made slight errors when setting the transmittance to the required levels. On a few occasions, the group accidentally introduced light into a cuvette where the variable being tested was the absence of light. This might have caused some error when taking measurements of the percentage  of transmittance. This resulted in skewed data, which meant that the experiment had to be repeated once more. During the first part of the  lab, the group made an error by allowing some part of the pigment  to be in the solvent. This did alter our results in the end. Topics for Discussion 4A: Plant Pigment Chromatography 1. What factors are involved in the separation of the pigments? The factors involved in the separation of the  pigments  from the  spinach plants  are the pigments’ solubility in the solution, how much they bind to the paper based on their chemical structure, and the size of the pigment particles. . Would you expect the Rf value of a pigment to be the same if a different solvent were used? Explain. No I would not expect the Rf values to be different because the pigments will dissolve differently in different types of solvents. For example, chlorophyll b is very soluble in hydrophobic solutions, so if the crushed spinach cells on the paper were put in a hydrophobic s olution, the chlorophyll b would move the highest and probably be right on the solution front, while the other pigments will move much less. 3. What type of chlorophyll does the reaction center contain? What are the roles of the other pigments? Chlorophyll a is in the reaction center, and the other pigments are able to absorb light from the other wavelengths that chlorophyll a cannot absorb light from, and then they transfer the energy harvested from the other wavelengths to the chlorophyll a, providing more energy to be used in photosynthesis. 4B: Photosynthesis/The Light Reaction 1. What is the function of DPIP in this experiment? DPIP is the electron acceptor in this experiment (instead of NADP which is what is normally used in plants). The electrons boosted to high energy levels will reduce the DPIP, which will change its color from blue to clear as more high energy electrons are absorbed by it. 2. What molecule found in chloroplast does DPIP â€Å"replace† in this experiment? It replaces NADP molecules that are found in chloroplasts. 3. What is the source of the electrons that will reduce DPIP? The electrons come from the photolysis of water. 4. What was measured with the spectrophotometer in this experiment? The light transmittance was measured, which really was the measure of how much the chloroplasts reduced the DPIP 5. What is the effect of darkness on the reduction of DPIP? Explain. Darkness will restrict any reaction to occur. 6. What is the effect of boiling the chloroplasts on the subsequent reduction of DPIP? Explain. By boiling chloroplasts, we denature the protein molecules, ending the reduction of DPIP. 7. What reasons can you give for the difference in the percent transmittance between the live chloroplasts that were incubated in the light and those that were kept in the dark? The percent transmittance grew to steadily higher numbers as the experiment progressed because the light reaction was able to occur. However, the dark cuvettes had stable levels of transmittance because light is necessary to excite electrons, which, in turn, reduces the DPIP. 8. Identify the function of each of the cuvettes. Cuvette 1: Used as the control Cuvette 2: Used to observe the rate of photosynthesis without light Cuvette 3: Used to observe the rate of photosynthesis with light Cuvette 4: Used to observe the rate of photosynthesis in boiled chloroplasts Cuvette 5: Used to observe the rate of photosynthesis

Best Financial Practices

Also, the organization's mindset is directed towards the future with an awareness of the hanging trends, market needs, technological advancements, and to cope and to operate within the changing environment (Herkimer, Jar. , 1988). Budgeting, expressed In dollar terms, involves detailed plans. There are several types of budgets that may dictate the organization's mission and structure and managerial preferences. They are: 1) Statistics Budget; 2) Expense Budget; 3) Operating Budget; and 4) Cash Budget.In addition to budget decisions, there Is timing. Healthcare services organizations should consider two types: 1) Conventional verses Zero-Based Budgets and 2) Top-down versus Bottom-up Budgets. Planning and budgeting are Important managerial activities. It allows health services managers to plan for and set expectations for the future, assess Flanagan performance on a timely basis, and ensure that operations are carried out In a manner consistent with expectations (Sheepskin, 2008).With out planning and budgeting, the business will be disorganized Pricing and Service Decisions In healthcare organizations, the managerial accounting department decides whether an established price for a particular service is profitable. Managers in a charge- based environment must set prices on the services that their organization offers. In addition, determine discounts for managed care plans or business coalitions. Pricing and service decisions affect a business's revenues and costs and determine viability in long term.Health services managers should have a better understanding of the pricing and service decisions they face, because they have the power to set prices. The healthcare providers may be price takers or price setters. When they are price takers, apply target costing, and when they are price setters, apply full cost pricing or marginal cost pricing. In making pricing and service decisions, managers should rely on managerial accounting and actuarial information.Pricing deci sions involve setting prices on services for which the provider is a price setter, and service decisions involve whether or not to offer a service when the price is set by the pay (the provider is a price taker) (Sheepskin, 2008). Without good pricing and service decisions, the business will lose profit and/ or lose customers. Ultimately, it can lead to business closure. Cost Allocation Cost allocation is a pricing process within the organization whereby managers allocate the costs of one department to other departments.There is no objective tankard established; therefore, a business must establish prices that would be set under market conditions. The purpose and goal for cost allocation is to assign all of the costs of an organization to the activities incurred (Sheepskin, 2008). Basically, cost allocation allows managers to make better decisions on cost control, on what services they provide, and how these services should be priced. The best results produced will come from manager s who perceive the cost allocation process to be accurate and fair, and the allocation process should promote cost reduction within heir department/organization.In the end, the managers will be held accountable for costs associated with services by their departments. Managers must know two important elements in cost allocation basics: cost pools and cost drivers. The more confidence that all managers have in its validity, the better the organization will function (Sheepskin, 2008). Without cost allocation, there will disorientation and chaos, because one department will have more cost allocated than the other. Time Value Analysis Time value analysis is the process of assigning appropriate values to cash flows.This s important part of healthcare financial management because it involves the valuation of future cash flows (Sheepskin, 2008). A timeline is the first step in time value analysis. Time lines illustrate and can help managers visualize cash flows analysis such as compounding, discounting, annuity, perpetuity, state rate, and periodic rate that managers must know so that financial decisions are made wisely. Without time value analysis, managers would not be able to appropriately assign values to cash flows, and it could lead to disorientation and financial ruin.Financial Risk and Required Return Unfortunately, there are risks and complications in businesses. In healthcare organizations, taking financial risks may mean investment in new hospital beds or a new managed care plan. A return that is earned less than the expected amount means the financial risk is greater. Managers in health care organizations should develop strategies to manage business and financial risk. One such strategy is to develop risk measures by using a standard of reference. This will allow for some comparison to another measure and a Judgment can be made.For an example, Capital Asset Pricing Model (CAMP) is the relationship between the market risk of a tock, as measured by its marke t beat, and its required rate of return (Sheepskin, 2008). A clear understanding of business and financial risk is essential if the health care organization wants to remain viable in the health care market. Without an understanding of the financial risk and required return, health care organizations can be blind to concepts that are failing and destined for financial ruin.They run a greater risk of losing profit. Reflection The various duties required by managers of healthcare organizations is complicated and multi- faceted. They must know so much in order to make the business run efficiently and successfully. They must understand a multitude of functions. Therefore, working with other experts, accountants, and managers from different departments is crucial in running a lucrative business. This includes planning, acquiring, and utilizing capital in the most efficient way possible.

Free Essays on Different Ways of Learning Languages

that couldn’t be understood. Another thing that helped me was being surrounded by people that only spoke English. Having almost no contact with people that spoke Romanian, forced me learn faster than some people. Communicating with others helps also. Making mistakes and having other people correct you helps and improves your skills. The best way to learn is learning from mistakes. Some people are afraid and embarrassed of speaking in front of others. This only holds them back and keeps them away fro... Free Essays on Different Ways of Learning Languages Free Essays on Different Ways of Learning Languages DIFFERENT WAYS OF LEARNING LANGUAGES Being able to speak more than one language I think it’s a gift from God that not every person is blessed with. Having this gift makes me fell very special because I can travel, communicate, and understand others’ people language and culture. At a very young age I started learning French, German and Italian besides my native language, Romanian. Learning a language to me in learning how to ride a bicycle, once you get it going it’s hard to stop. I learned them the natural way without trying or putting to much effort. To me, learning English it was much easier than the other languages I have studied. When I came to America I didn’t speak English at all and I thought that it would take a long time before I learn anything. To be successful learning a new language you must want to learn it, because if you don’t and not interested in you’ll never get it. At the very early stages of learning a language I think going by the book it is not a very good idea. At the beginning you need as much practice as you can get. In my case television played a major role in learning English. Watching TV and trying to understand the conversation helped me improve my vocabulary and pronunciation at the same time. Reading magazines and articles in the newspapers is another way to approach a new language. This way you learn the spelling of words and can look up in the dictionaries for words that couldn’t be understood. Another thing that helped me was being surrounded by people that only spoke English. Having almost no contact with people that spoke Romanian, forced me learn faster than some people. Communicating with others helps also. Making mistakes and having other people correct you helps and improves your skills. The best way to learn is learning from mistakes. Some people are afraid and embarrassed of speaking in front of others. This only holds them back and keeps them away fro...

Collect data with a view to estimating population parameters using estimation techniques Essays

Collect data with a view to estimating population parameters using estimation techniques Essays Collect data with a view to estimating population parameters using estimation techniques Essay Collect data with a view to estimating population parameters using estimation techniques Essay Task: You are required to collect data with a view to estimating population parameters using estimation techniques. This should involve taking a random sample as well as calculating and comparing confidence intervals. I have decided to estimate the population parameters for sentence length in 2 different genres of books. I have chosen a horror book and a drama book to see how sentence length varies between them. In theory I would expect the horror book to have much shorter sentences to add suspense whilst I would expect the drama to have longer more descriptive sentences. Method: As it would be too time consuming to record the sentence length for the whole population (the whole book). I am going to use sampling. To try and avoid any bias I will use the random number function on a calculator to find a page in the book and then I will record the length of the first full sentence. I will take a 100 samples for each book as this is enough that I will be able to gain accurate estimates for the population parameters but not use too much time. If by chance 2 the random number function produces a number that has already been used I will simply take the length of the second sentence on that page. The Central Limit Theorem Because I dont know anything about how the population is distributed I have to use the Central Limit Theorem. Even if you dont know how the parent population is distributed the central limit theorem allows you to make predictions as to the distribution of the sample means. Also with a large enough sample the sample mean will be close to the population mean. The central limit theorem says that: * If you take enough samples then the means will be normally distributed. * The mean of the sample means is approximately equal to the population mean. * The variance of the sample mean is roughly the same as the population variance divided by the sample size * The large the sample size the closer the sample mean and variation are to the population mean and variation. X ~ (unknown) (à ¯Ã‚ ¿Ã‚ ½) then X ~ N(à ¯Ã‚ ¿Ã‚ ½/n) Once I have collected the data I will calculate the mean, standard deviation and variance of the sample. When I have figures for these I can estimate the variance and standard deviation of the population. Next I will calculate the standard error which will allow me to calculate confidence intervals for the population. When calculating confidence intervals I will use the tables for the normal function. Data Collection Data For Horror Book Page Sentence Length 217 12 161 11 178 1 200 24 14 13 138 27 38 11 80 3 155 10 43 8 65 20 171 7 96 31 135 8 96 6 128 17 163 12 199 20 41 17 59 18 93 9 173 6 90 12 56 9 100 17 123 40 218 2 110 11 59 21 193 13 20 8 229 41 203 8 126 1 197 10 53 8 83 9 190 10 182 25 203 28 226 5 110 13 196 14 87 7 63 24 42 31 43 1 131 13 185 2 200 25 29 23 194 21 44 4 125 1 51 3 32 25 47 6 194 10 21 16 124 25 221 7 127 5 77 16 56 35 222 4 34 28 141 8 231 8 15 12 30 20 157 12 97 20 131 34 108 21 173 6 75 8 192 4 139 6 100 8 223 31 99 12 118 8 201 24 138 7 230 10 95 21 193 15 147 10 196 12 190 11 170 3 120 27 162 39 123 16 129 9 73 7 208 18 98 5 51 145 11 Data For Drama Book Page Sentence Length 51 19 148 20 234 29 114 18 195 6 313 4 239 19 115 11 10 2 203 9 191 8 118 21 109 10 317 4 217 9 298 9 241 9 10 6 232 10 57 11 114 32 80 11 196 14 49 11 67 9 282 15 280 31 226 18 71 24 315 16 308 5 203 9 226 14 147 38 224 10 236 19 185 18 257 5 317 11 1 29 169 15 66 9 267 17 106 20 232 28 160 37 300 25 322 8 49 21 26 29 276 41 214 15 233 7 131 9 76 8 71 8 317 9 177 5 155 13 266 6 95 5 308 3 93 6 55 8 96 4 311 6 65 9 128 21 288 18 203 4 210 19 166 20 175 14 280 13 249 8 245 19 182 4 312 19 52 23 73 13 221 6 204 12 73 13 189 9 129 25 50 25 230 6 273 22 218 12 31 39 149 28 96 7 48 14 80 18 13 11 167 4 34 23 43 10 94 7 49 16 The first thing for me to do is to find the Mean, Standard Deviation and Variance of the sample I have taken. As it would be extremely time consuming trying to find the exact mean and variance for 100 results I have set up frequency tables which will allow me to work out the mean and variance more quickly. I have chosen quite small class intervals so that the calculations will be as accurate as possible. Drama Book Number of Words Frequency 1- 5 6- 10 11- 15 16- 20 21- 25 26- 30 31- 35 36- 40 41- 45 Number of Words Frequency Mid interval Value F x Miv F x Miv 1- 5 12 3 36 108 6- 10 31 8 248 1984 11- 15 19 13 247 3211 16- 20 17 18 306 5508 21- 25 10 23 230 5290 26- 30 5 28 140 3920 31- 35 2 33 66 2178 36- 40 3 38 114 4332 41- 45 1 43 43 1849 = 100 = 1430 = 28380 Horror Book Number of Words Frequency 1- 5 6- 10 11- 15 16- 20 21- 25 26- 30 31- 35 36- 40 41- 45 Number of Words Frequency Mid interval Value F x Miv F x Miv 1- 5 15 3 45 135 6- 10 31 8 248 1984 11- 15 18 13 234 3042 16- 20 12 18 216 3888 21- 25 12 23 276 6348 26- 30 4 28 112 3136 31- 35 5 33 165 5445 36- 40 2 38 76 2888 41- 45 1 43 43 1849 = 100 = 1415 = 28715 From my frequency tables I have been able to use a number of graphical methods to show the data. I have work out the median of the horror book to be 11 and the drama book to be 12. I have also found the lower quartiles to be at 7 for the horror book and 8 for the drama book whilst the upper quartiles are 19 for the drama book and 20 for the horror book. This tells me that the data for the horror book appears to be more spread out so I would therefore expect it to have a larger variance. Having found the mean of the samples I can say using the central limit theorem that the population means are the same. So the mean sentence length for horror books is 14.15 words and the mean sentence length for drama books is 14.3 words. However the variance obtained for the sample is not the same as that for the population it is a biased estimator. This means the mean of its distribution is not equal to the population value it is estimating. To obtain an unbiased estimator for the variance of the population we can use the formula We can see that this didnt really have that bigger affect on the variance because the value for n was quite large and so n / n-1 was almost 1. In order to calculate the accuracy of your value for the sample mean you can calculate the Standard Error (s.e.). This is the standard deviation of the sample means. This is found using the below formula. We can see that the s.e. for the horror book was 0.937 and for the drama book it was 0.891. This standard error is quite small so I can be quite confident that the actual mean of the populations is equal to that of the sample. A better way of showing how confident I can be in my approximations is to use confidence intervals. Confidence intervals allow you to give a percentage value to how confident you can be that the mean of the population is within certain values. The central limit theorem says that the sample mean is distributed normally when a large enough sample is taken and that the sample mean is equal to the population mean. This means that we can use the tables for the normal function to find out how confident we can be that the population mean is within a certain range. For example when 68% of the graph is shaded (below) we can use the normal tables to work out that the population mean is within + or 1 s.e. of the sample mean. So if you took a sample you could be 68% confident the sample mean was within + or 1 s.e. of the population mean. This can be written as the inequality: However because we dont know the value of we must rearrange this to form the inequality: I am going to use this to calculate 90%, 95% and 99% confidence intervals. The z value for a 90% confidence interval is 1.645 so I can be 90% sure that the sample mean is within 1.645 s.e of the population mean. This means the calculations are: For 95% confidence I found that the z value was 1.96 so you can be 95% sure the sample mean is within 1.96s.e. of the population mean. The z value for 99% was 2.58 s.e Data Interpretation From my calculations I have been able to work out the population parameters for the 2 books. Firstly I found that the mean for Alfred Hitchcock horror book was 14.15 whilst the mean for the drama was 14.3. I found that the population variance was 87.8 for the horror book and 79.3 for the drama book. The confidence intervals I calculated for the horror book were And for the drama book they were Although this supports my prediction that horror books would have less word per sentence I am not actually that confident in this conclusion. This is due to the fact that the confidence intervals for 99% have a large range of 4.84 words for horror books and 3.49 words for the drama book. This means that the actual population mean could be quite different to the sample mean I calculated and so it could be that the population mean for the drama book was actually more than that of the horror book. I also found that that the variance for the horror book was greater than that of the drama book. This is probably because a drama book is likely to keep the same style of writing throughout the book with roughly the same sentence length whereas a horror book is likely to contain parts where there is suspense and the sentences are short and parts where there is description and the sentences are much longer. One of the problems with my findings was that the calculated as means were not whole num ber. It is impossible to have fractions of a word so if you actually round the means to the nearest whole word they are exactly the same at 14. There were a number of limitations with this investigation firstly if I couldnt be that confident that the mean I obtained was that accurate if I wanted to be more accurate I would have to take a lot more samples. For example if I wanted to be 99% sure that the sample mean was within 0.1 of a word of the population mean I would have to take over 58,000 samples (see below) for the horror book and over 52,000 samples for the drama book. Obviously this is highly impractical but it shows how inaccurate my estimate is due to the fact that I took so few samples. Also I only sampled 1 book from each genre so it is difficult for me to accurately say that all books from these genres will be the same. It is possible that different authors with different writing styles will produce different sentence lengths. For example another horror writer may use longer sentences whilst another drama writer might use shorter sentences. So if I was to extend this investigation I would firstly take more samples to ensure greater accuracy which would therefore allow greater certainty in any conclusions drawn. Secondly I would compare a number of different horror books against each other to see if their population parameters were similar or if they varied. Another progression could be to sample a number of horror books by the same author to see if they are at all similar in their population parameters.

Niels Bohr Institute

Niels Bohr Institute The Niels Bohr Institute at the University of Copenhagen is one of the most historically-significant physics research sites in the world. Throughout the early twentieth century, it was home to some of the most intensive thinking related to the development of quantum mechanics, which result in a revolutionary rethinking of how we understood the physical structure of matter and energy. Founding of the Institute In 1913, Danish theoretical physicist Niels Bohr developed his now-classic model of the atom. He was a graduate of Copenhagen University and became a professor there in 1916, when he pretty much instantly began lobbying to create a physics research institute at the University. In 1921, he was granted his wish, as the Institute for Theoretical Physics at the University of Copenhagen was founded with him as the director. It was often referenced with the short-hand name Copenhagen Institute, and youll still find it referenced as such in many books on physics today. The funding to create the Institute for Theoretical Physics largely came from the Carlsberg foundation, which is the charitable organization affiliated with the Carlsberg brewery. Over the course of Bohrs lifetime, the Carlsberg forked out well over a hundred grants to him in his lifetime (according to NobelPrize.org). Beginning in 1924, the Rockefeller Foundation also became a major contributor to the Institute. Developing Quantum Mechanics Bohrs model of the atom was one of the key components of conceptualizing the physical structure of matter within quantum mechanics, and so his Institute for Theoretical Physics became a gathering point for many of the physicists thinking most deeply about these evolving concepts. Bohr went out of his way to cultivate this, creating an international environment in which all researchers would feel welcomed to come to the Institute to assist in their research there. The major claim to fame of the Institute for Theoretical Physics was the work there in developing an understanding of how to interpret the mathematical relationships that were being demonstrated by the work in quantum mechanics. The main interpretation that came out of this work was so closely tied to Bohrs Institute that it became known as the Copenhagen interpretation of quantum mechanics, even well after it had become the default interpretation the world over. There have been a number of occasions where people directly affiliated with the Institute received Nobel Prizes, most notably: 1922 - Niels Bohr for his atomic model1943 - George de Hevesy for work in nuclear medicine1975 - Aage Bohr and Ben Mottelson for work in describing the structure of the atomic nucleus   At first glance, this might not seem particularly impressive for an institute that was at the center of understanding quantum mechanics. However, a number of other physicists from other institutes throughout the world built their research on the work from the Institute and then went on to receive Nobel Prizes of their own. Renaming the Institute The Institute for Theoretical Physics at the University of Copenhagen was officially renamed with the less-cumbersome name Niels Bohr Institute on October 7, 1965, the 80th anniversary of Niels Bohrs birth. Bohr himself had died in 1962. Merging the Institutes The University of Copenhagen of course taught more than quantum physics, and as a result had a number of physics-related institutes associated with the University. On January 1, 1993, the Niels Bohr Institute joined together with the Astronomical Observatory, the Orsted Laboratory, and The Geophysical Institute at the University of Copenhagen to form one large research institute across all of these diverse areas of physics research. The resulting organization retained the name Niels Bohr Institute. In 2005, the Niels Bohr Institute added the Dark Cosmology Centre (sometimes called DARK), which focuses on research into dark energy and dark matter, as well as other areas of astrophysics and cosmology. Honoring the Institute On December 3, 2013, the Niels Bohr Institute was recognized by being designated an official scientific historical site by the European Physical Society. As part of the award, they placed a plaque on the building with the following inscription: This is where the foundation of atomic physics and modern physics were created in a creative scientific environment inspired by Niels Bohr in the 1920s and 30s.

Concept of bureaucracy as an effective system of organization Essay

Concept of bureaucracy as an effective system of organization - Essay Example The concept of bureaucracy has great importance in social science and organization theory as it plays a pivotal role in the world of management. According to Du Gay (2000), bureaucracy is not only organizational form that is strictly restricted for a modern society rather it is followed by every society worldwide. Organizational behavior, organizational theories and management identify the effect of bureaucracy in a formal and rational organization. The model of Weber treated as the descriptive version of organizational model of Taylor is based on the scientific management theory. The strict rules, division of labour and specialization codify one of the best ways for strict subordination. The exclusion of any personal element from the code of conduct of work is the most familiar elements, which is attributed to Fayol, Taylor and Weber. According to Udy (1959), the elements are generated from different opinions of the scholars of social sciences. These scholars considered the elements of the companies as the driving factors for increasing the efficiency levels of the organizations. The rational school for management is followed by human relations movement that proved to have significant presence of the personal elements like attitudes, emotions and values, which are shared by the workers frequently. The human relation movements actually pointed out the factors that have great impact on the efficiency of organization. The results that are obtained from the human relations have questioned the efficiency of the formal- rational organizational theorem (Du Gay, 2000). Open system theory developed for the organization relies on the theoretical approach and uses the comparative statistical evaluation process extensively. This method is applied for searching the different characteristics in an efficient organization. The success of an

Leisure law Assignment Example | Topics and Well Written Essays - 1750 words - 1

Leisure law - Assignment Example It was actually in Donoghue v. Stevenson, in which the concept of duty of care was significantly and formally conceptualized and developed. Hereby the court of law established some concrete tests which ought to be satisfied so as to establish the duty of care. However, it was actually in Caparo Industries v. Dickman that happens to be a prominent British Tort Law case, in which a tripartite test for establishing the duty of care was set up (Cane 1996). Dickman happened to be the auditors of the accounts of the company Fidelity plc, while Caparo Industries happened to be a company that purchased the shares of Fidelity plc. After purchasing the shares of Fidelity plc, Caparo Industries found out that the accounts prepared by Dickman at no time indicated or showed that the firm has been running into large losses. It needs to be mentioned that before Donohue v. Stevenson, the claimants had to verify the existent duty clause to achieve success. In contrast, the subsequent cases tried to o rganize and limit the tests given by Donohue v. Stevenson. Caparo Industries v. Dickman was a step in that direction. The court established that in case of Caparo Industries v. Dickman, for the emergence of care to arise in the cases of negligence, the three essential criteria needed to be verified: There is no denying the fact that human relationships tend to thrive under the aegis of a large and wide range of situations and circumstances. Hence, the very establishment of duty of care in any particular case may give way to many confusions and variations. Traditionally speaking, the law has always tried to verify and establish the duty of care in a range of circumstances, each and every circumstance being incumbent to its own specific characteristics and peculiarities. However, this practice has lead to the creation of a whole body of

Epidemiology According to John Snow and William Farr Research Paper

Epidemiology According to John Snow and William Farr - Research Paper Example When the second cholera pandemic broke out and reached London in 1832, a number of theories on the causation of such catastrophic spate were proposed, including miasma or â€Å"bad air† and changes in environmental conditions (Morabia, 2001, 150th Anniversary, 2004). However, John Snow, who was a respected medical practitioner specializing in anesthesia and respiratory physiology, questioned the correctness of those theories. He observed that the symptoms were intestinal in nature, abdominal pain is one of the first complaints of the afflicted, accompanied by vomiting, diarrhea, and dehydration (Eyler, 2001). At the same time, treatments that acted specifically in the digestive tract seemed to alleviate early symptoms. From these observations, he proposed that cholera could not be a blood or respiratory infection but an infection of the gut. Snow proposed that the main proponent of transmission was not the soil, nor climate change or miasma as originally suggested, but the ing estion of water contaminated with fecal matter. But this did not convince the medical community. Without definitive data, Snow’s analogy was not good enough. In 1854, another wave of cholera plagued the Soho district yet again. This time, Snow suspected that an infected water pump located in Broad Street brought upon the outbreak. Following his earlier proposal that the cholera infection was from the ingestion of contaminated water and bearing a record of death from Cholera from the General Register Office, he traced the deaths attributed to cholera within the vicinity and found that they drank water from a common water pump in Broad Street. Snow elucidated this by plotting a Cholera spot map showing the areas collectively affected by the epidemic, as well as its proximity to the specific pump in question.  

Modern Myths Essay Example | Topics and Well Written Essays - 500 words

Modern Myths - Essay Example The myths are based on the society’s culture, norms, practices and even daily activities. Man of steel is a 2013 superhero film. The film is based on the character of the Dc comic and superman. Its co-producer is Syncopy films and Legendary pictures companies. The film is distributed by the warner bros.It is a series of films which portrays the origin of the human character. The film was officially released to the public on 14th of June 2013. The film has an organized acting and narrative. The film also portrays well the fight scenes, reinvention of titular character and the visuals. The themes story is the character. The superman character portrays a very real story (Brown, 122). He portrays that everybody’s goal is to dig out the difficulties he or she faces. A person’s character faces difficulties due to its multiple identities. The boy as a young man discovers extraordinary powers. He, therefore, journeys to explore his origin and the mission he is sent to do. Superman is to become a symbol and hope for all men after emerging a hero. The afterlife in religion is a myth which is used to explain the continuous existence of an individual after death. According to afterlife’s myths a person’s body consists of several elements. The body contains the soul, mind and the heart. It is believed that after death, the human soul will continue to exist. Most of the religions in the world believe that there is heaven and hell. It is believed that those who are righteous will go to heaven and those who are sinners will go to hell. They will face a wrath of fire which will burn them continuously. The afterlife is believed to convey the truth about hell and heaven (Exline, 161). It also explains what happens after death. The theme of afterlife myths is to convey the truth of what will happen after death. Furthermore, it explains that the righteous will continue to live while the sinners will be burn to ashes in hell. Creation

Should our courts, as Jane Stapleton has suggested, wipe out recovery Essay

Should our courts, as Jane Stapleton has suggested, wipe out recovery for pure nervous shock on the basis that no reasonable bou - Essay Example It goes without saying that existed times in the history of the English society in general and the world community in particular when ‘harm’ as it goes in the law was considered to be a gross and visible injury caused to a person or persons1. As the science of psychology and psychiatry evolved and gained formal recognition, it dawned upon the society and the associated disciplines and institutions like law that the notion of a ‘psychiatric injury or harm’, sometimes unaccompanied by blood or gore was a valid, acceptable and plausible possibility. So, the institution of law attempted to commensurately extend the available remedies and recoveries, albeit to accommodate within its ambit the notions of psychiatric injury or harm. The concept of ‘nervous shock’ within the English law is a direct outcome of such humane and propitious developments.2 The problem is that the ‘nervous shock’ inflicted on a person is often not quantifiable lik e physical injuries, not to mention the many other pragmatic problems associated with this legal concept. In the light of this problem, there exists a school of intelligentsia represented by luminaries like Jane Stapleton who advocate the abolition of the legal remedies associated with such harm.3 Yet, it will be utterly sensitive and reasonable to hold that considering the problems and confusions associated with a form of injury or harm, necessitates and calls for a further evolution of the English law, rather than vying for the already scarce remedies available for it. Nervous Shock As per the English Law, ‘nervous shock’ stands to be a psychiatric illness caused to a person, usually intentionally. This legal provision also includes the psychiatric illnesses caused to a person owing to the negligent behaviour of somebody. It goes without saying that the term ‘nervous shock’ is somewhat misleading in the context of the issue it intends to cover. Yet, the E nglish Law has chosen to continue with the usage of this term to refer to the complex notion or concept it alludes to. As per the English Law, a person can claim damages, owing to the nervous shock caused to one by the intentional or negligent behaviour of a person or a party. However, recovery due to nervous shock is to some extent restrained if not impossible in the English Law. This development is influenced by the fact that mostly no reasonable boundaries for the course of action can be traced in such cases. ‘Nervous shock’ is this context is an issue that the English Law is still trying to grapple with so as to somewhat concretize and positively solidify the remedies and provisions associated with this form of wrong or injury.4 Problems Associated with the Concept of Nervous Shock In the realm of law, which depends to a great extent on logic, rationality and the analysis of reasonable and verifiable facts, the concept of ‘nervous shock’ almost seems to be an aberration and anomaly. In that context, the possibility of a mental injury or shock appears to have a predilection towards the realm of philosophy or metaphysics. Mind, no doubt, since times immemorial has been considered to be a metaphysical term, which is known and understood by many but which evades all attempts at generalization or the possibility of arriving at a common agreement as to holding some universal definition.5 Mind is an attribute that has to do

Modern Myths Essay Example | Topics and Well Written Essays - 500 words

Modern Myths - Essay Example The myths are based on the society’s culture, norms, practices and even daily activities. Man of steel is a 2013 superhero film. The film is based on the character of the Dc comic and superman. Its co-producer is Syncopy films and Legendary pictures companies. The film is distributed by the warner bros.It is a series of films which portrays the origin of the human character. The film was officially released to the public on 14th of June 2013. The film has an organized acting and narrative. The film also portrays well the fight scenes, reinvention of titular character and the visuals. The themes story is the character. The superman character portrays a very real story (Brown, 122). He portrays that everybody’s goal is to dig out the difficulties he or she faces. A person’s character faces difficulties due to its multiple identities. The boy as a young man discovers extraordinary powers. He, therefore, journeys to explore his origin and the mission he is sent to do. Superman is to become a symbol and hope for all men after emerging a hero. The afterlife in religion is a myth which is used to explain the continuous existence of an individual after death. According to afterlife’s myths a person’s body consists of several elements. The body contains the soul, mind and the heart. It is believed that after death, the human soul will continue to exist. Most of the religions in the world believe that there is heaven and hell. It is believed that those who are righteous will go to heaven and those who are sinners will go to hell. They will face a wrath of fire which will burn them continuously. The afterlife is believed to convey the truth about hell and heaven (Exline, 161). It also explains what happens after death. The theme of afterlife myths is to convey the truth of what will happen after death. Furthermore, it explains that the righteous will continue to live while the sinners will be burn to ashes in hell. Creation

Large Female Nude by Pablo Picasso Research Paper

Large Female Nude by Pablo Picasso - Research Paper Example The paper "Large Female Nude by Pablo Picasso" analyzes one of the most important artworks of the cubist Pablo Picasso. The picture this artwork shows is the outline of an overweight woman. The outline is filled with smaller lines that follow the lines of her muscles except in the area of her stomach. In this area, the lines move horizontal across her middle. The way these lines are drawn makes it look like the woman is moving and add energy to the art. The lines on the right side of the painting are light-colored and the lines on the left side of the painting are darker which makes the woman seem like she is not so flat, because the light is shading her. It looks like the woman is dancing because she has her hands held up on top of her head and one leg is positioned behind her with the knee bent. The other leg is straight, but it looks like it is facing me because the toes are in front. This makes me think I can see her from the front and from the side at the same time. The woman's face is turned toward the darker side of the painting and she has long, dark hair that falls over her shoulder and between her breasts. One of her breasts is straight toward me but the other is seen from the side but the one that is straight toward me is not on the side with the leg that is straight toward me. There is a light area of brown around the body of the woman, but it is wider along her dark side. This same solid brown color fills the area between her legs and the space between her face and her dark arm. There is a floor under her feet which is a wavy light line, but the rest of the artwork space is black. This artwork is described as a reduction linocut, which means that it was made in a special way. Instead of painting like most of his work, Picasso cut the image into a block and then paint was put on the block and a piece of paper was put on top of that and rubbed until the design moved onto the paper. To make this have more than one color, Picasso had to cut the block t o make the background brown color of the woman and print it. The black parts would be the part of the block that he cut away and the brown part that outlines the woman would be the parts that stayed. Then he would need to cut out more of the block to show more details of the woman like the lighter color lines. If you look carefully, you can see that some of these lines go over the darker brown lines which means that they were printed after the darker lines. It is called reduction linocut because the artist has to keep reducing, or cutting away, the block in order to make the print. Even though these lines were already there in the darker brown, having to pull the block away in order to cut more of the lines away would have meant that it wouldn't be put in exactly the same place the next time when the lighter lines were being made. There is another tricky thing about this way of making art. Even though the woman is facing one way when I look at her, Picasso had to cut her like a mirr or image in order to make her look the direction he wanted her to look. One of the reasons artists might use this way of making art is that they can make more than one copy of an image quickly, but they can still limit the number of artworks they print. Once the block has been carved the second time, no more new prints can be made. The style of the artwork that Picasso uses for this woman is the primitive style, which was a style that he made popular. In his work, Picasso wanted to show emotions without