Concentration Levels of Essential Metals

Concentration Levels of Essential Metals Comparative Distribution of Selected Essential Metals in Drinking Water by Atomic Absorption Spectrophotometric Method Tanzeel ur Rehman and Misbah Zahid ABSTRACT This study reports the concentration levels of selected essential metals; Ca, Mg, Na, K, Fe and Zn in the drinking water collected from different areas of Islamabad. The levels of these metals present in the drinking ground water were compared with standards reported worldwide. The analysis was carried out using atomic absorption spectrophotometry. The mean metal concentration for Na was far less than those reported worldwide, while the average concentrations of K and Zn were also less than those reported worldwide. The mean concentration of Fe was equal to those reported worldwide standards. Sodium showed maximum concentration while Fe was estimated to be the lowest among the selected metals. Key Words: Essential Metals; Ground water; Atomic Absorption Spectrophotometry INTRODUCTION Environmental pollution especially in the metropolitan cities is generally expected to deteriorate the quality of drinking water. One of the important parameters of the quality of water is represented by the concentration of major, minor and trace elements. In industrial areas, some of the metals may be expected to present at considerably elevated level as a result of excessive industrial effluents which might find their way to the underground drinking water reservoir1. Contrary to such theory, one may suggest that, the underground drinking water resources may still be out of reach to the surface pollutants. In any of such cases, regular monitoring of trace metals is always recommended especially in the drinking water2. In Pakistan, only limited population has access to the purified public water supply while the rest of population is dependent upon direct withdrawal of water from both surface and underground sources. Most of the quality problems in Pakistan are due to lack of waste disposal regulations non-availability of treatment facilities and due to lack of public awareness about water quality3. Atomic absorption spectrophotometry is most commonly used for the determination of metal levels in the groundwater and soil4. In addition, few other techniques, such as X-ray fluorescence, ICPMS, ICPES, flame photometry, emission spectrography and voltammetry have been used for metal analysis on limited scale. Atomic absorption method is preferably used because it is more sensitive, and reproducible, relatively free of interferences and convenient to use than most of the other methods of analysis. For the quantitative measurements of trace metal levels, calibration line method has been most widely applied. The most selective light sources in the form of hollow cathode lamps have been in use since a long in atomic absorption spectroscopy5. Drinking water used in Rawalpindi and Islamabad is contributed by two main sources. First is the surface water, mainly in the form of dams and the other is groundwater which is drained off after proper boring. Water supplied to twin cities of Rawalpindi and Islamabad is mostly a run-off collected from the watershed of Murree hills. The contamination is due to the anthropogenic emissions and geological structure of the area bearing unhealthy minerals affecting the taste and characteristics of water6. The pathogenic organism is also responsible for health hazard, apart from the inorganic chemical7. The present study was carried out to estimate the concentration of selected essential metals Ca, Mg, Na, K, Fe and Zn in the drinking water and then to compare these metal levels with the international standards in order to evaluate their health effects. EXPERIMENTAL Water samples were collected from the residential areas of Islamabad. These samples were collected in plastic bottles and stored in proper place before analysis. Before filling, the sample bottles were first rinsed with the sample water and were then filled to overflow so that no air bubble was left trapped in the sample. The samples were collected during day time, mostly on a shiny day. Care was taken to collect the representative samples. For calibration line, working standards of the metals were prepared. The stock solutions of 100 ppm of all these metals were prepared from pure metal salts, or metal salt having fixed H2O molecules. The working standards were prepared by appropriately diluting 100 ppm stock solutions of these metals. All equipments used, were properly calibrated prior to experimental measurement. Atomic absorption spectrophotometer (Hitachi, 170-10, Japan) equipped with laminar flow burner. Air-acetylene flame was used for the determination of these metals under optimum analytical conditions shown in Table-1. Each metal was analyzed at its optimum wavelength under stipulated flow rate of oxidant and fuel, as recommended by the manufacturer of the instrument. Every care was taken to reduce the contamination during the analysis. RESULTS AND DISCUSSION The analysis of selected essential metals was performed under the optimum analytical conditions as shown in Table-1. The absorption wavelength used for Ca was 422.7 nm, for Mg 285.2 nm, for Na 589.0 nm, for K 766.5 nm, for Fe 248.3 nm, Zn 213.8 nm. The lamp currents were properly adjusted as recommended by the manufacturer and oxidant and fuel flow rates were also controlled for maximum absorption signal (Table-1). The distributed parameters for the selected essential metals in the drinking water are shown in Table-2. Minimum levels for Ca, Mg, Na, K, Fe, and Zn were 1.15, 9.00, 11.21, 0.70, 0.20 and 0.23 ppm, while their maximum values were 32.43, 25.64, 25.95, 4.43, 0.63 and 0.56 ppm respectively. Ca, Mg and Na were present at dominant levels while K, Fe, and Zn showed relatively low concentrations. Mean and median values were found to be comparable in each case. Overall, the metal levels were quite divergent as manifested by relative high standard deviation values as well as appreciably large coefficient of variance. In water, trace amounts of metals are common, and normally, these are not harmful to health. In fact, some metals are essential for the sustainability of life. Ca, Mg, K and Na must be present at relatively higher levels for normal body functions. Co, Cu, Fe, Mn, Mo, Se and Zn are needed as catalysts for enzyme activities at low levels. Drinking water containing high levels of these extremely important metals or poisonous metals such as Al, As, Ba, Cd, Cr, Pb, Hg. Se and Ag may be dangerous to health8. The presence of metals in water supply may be natural or may be the result of contamination. Natural presence of these metals is the result of dissolution of metals due to the connection of water with soil or rocks9. Corroded material i.e corrosion of pipes and waste disposal leakage are the major sources of contamination of water. Metals present at high enough level than threshold limit value should be removed to be out of risk factor. Comparison of present metal levels with the international standards is shown in Table-3. Ca is important in controlling nerve impulse conduction and muscle contraction in living organisms. It has very important role in blood clotting. It converts fibrinogen to fibrin during blood clotting10. Ca is very important for good health. Most of the required portion of Ca for human body is provided by the drinking water containing Ca. This particular amount of Ca prevents ailments as hypertension, osteoporosis and cardiovascular disorders. The calcium level was found in the range of 1.15 to 32.43 ppm. The WS-1, WS-2, WS-3 has approximately equal amount of Ca while the WS-6 has a maximum amount of Ca. The median of all these samples were 18.64 ppm. The WS-5 was found to have the minimum amount of Ca. All the observation shows that Ca has the low amount than the WHO standards. The standard deviation is 8.02 and the co–efficient of variance is 40.8 which is maximum than all the other elem ents. Magnesium is driven out from the bodies of healthy persons. People may suffer from increase in blood pressure, muscle weakness and even coma if they have kidney disease. Mg is for signaling the nervous system and it also participates in osmotic and electrolyte balance. It is essentially required in photosynthesis. In human, it can cause genetic disorder11. In the present work the Mg mean value was found 18.04 ppm. The concentration of Mg ranges from 9.00–25.64 ppm. The lowest value was found in WS-6D and the highest was found in WS-2C. The median was found 16.36 ppm .All the values were found to be below the international standards of WHO. The maximum difference was found in WS-1 samples which is 15.93–25.23. The median was lower than the mean which shows asymmetry in its distribution. The standard deviation is 4.59 ppm and co-efficient of variance is 23.21 which is lower than all other elements. Sodium is beneficial to healthy adults at normal intake levels. But people having hypertension or heart problem should reduce Na intake to lower the danger of heart diseases and blood pressure. Na has serious effects on both human life and crop yield. Water high in Na is considered soft and generable for irrigation12. In present study, the result showed the mean value of Na was 19.80 ppm which was higher than Ca and Mg but this level was not the toxic level, so it has no bad effects. Na levels range from 11.21 to 35 ppm. The least Na levels were found in WS-6D and the highest was found in WS-4E. The median was higher than the mean value which showed the negative asymmetry in the data. The spread of the data is found in form standards deviation and was 6.02 ppm and the co-efficient of variance was 33.39 %. In comparison with the international standards, the Na levels found in the samples were low than WHO, EU, UK and Japan, but are just equivalent to USEPA standards. In natural water, K is found in far smallest concentration than other metals. It acts in water as Na does, although it occurs in small concentration but plays an important role in metabolism of the fresh water environment and is regarded to be the vital macro-nutrients. It has an important role in maintenance of osmotic and electrolytic balance. It is important in proper rhythm of heart beat. It is important for creation of nerve impulse and its transmission13. In our analysis the K ranges from 0.70 to 4.43 ppm and mean value was 3.06 ppm. The lowest level was found in WS-6A and the highest in WS-3A. The median is 3.53 ppm which showed the negative asymmetry and standard deviation is 1.19 and co-efficient of variance is 39%. K values in present study were much lower than EU and UK standards. Iron in water has not hazardous for health by itself but it may be responsible for increasing the hazard of pathogenic organisms, because many of these organisms need Fe to grow. Iron is one of the most abundant metals in the earth crust and is essential for plants, animals and human being. The permissible limit placed on this metal has no health significance14. In our study the mean value found for the Fe was 0.39 ppm. The minimum value was found at 0.2 ppm in the WS-4B, and the maximum was 0.63 ppm in WS-1A. The median found for Fe was 0.40 which is greater than the mean and show asymmetry in the data. The standard deviation was 0.13 which showed small spread of the data. The co-efficient of variance value was 33.79%, in comparison with the international standards of WHO, EU, USEPA, UK, Russia and Japan present levels were almost same. The iron present in the sample seems to be ferrous iron since no discoloration of water was observed when collected. Zinc is very important constituent in our diet. Zn has hazardous effects if we increase its amount 10-15 times higher than the amount required for good health. Large doses of Zn taken orally even for a short period of time can cause nausea, stomach cramps and vomiting. Its intake for longer time results in anemia and in decreasing the levels of good cholesterol. Metal fume fever, a short term disease, may be the result of inhaling Zn as dust or fumes of zinc. Breathing high levels of Zn for long time, no doubt, has long-term effects but these are still unknown. Zinc is essential element for plants and exists in water and soil as an organic complexes and inorganic salts. Zinc is required for growth, sexual development, wound healing infection, sense of taste and night vision in human15-17. The mean value found in water samples was 0.42 ppm which ranged from 0.23 to 0.56 ppm. The median of the data reading was 0.48 which showed negative asymmetry in the data. The standard deviation sho wn was 0.12 ppm and co-efficient of variance was 27.49 %. When these values are compared with international standards the Zn level was found lower than WHO, US EPA, Russia, but was higher than EU. CONCLUSION It was observed during the present study that mean concentrations of Ca, Mg, Na, K, Fe, and Zn in the drinking water of Islamabad were found to be 19.65, 18.04, 19.80, 3.06, 0.39, and 0.42 ppm respectively. For Na, K, Ca, Mg and Zn, these values are far less in comparison to the concentrations reported worldwide, whereas for Fe present value is nearly equal to the reported values. Ca, Mg and Na were in high concentrations as they are macronutrients while K, Fe and Zn being the micronutrients were present in low concentrations. Over all, the selected metals revealed asymmetric distribution in their concentration duly reported by standard deviation and co-efficient of variation. Table-1: Optimum analytical conditions on FAAS for selected essential metals Table-2: Distribution of selected essential metal levels (ppm) in the drinking water BDL = Below Detection Limits Table-3: Comparison of selected essential metal levels (ppm) with the international standards reported world-wide18 REFERENCES Manahan, S. E. (1997). Environmental Science and Technology, Lewis Publishers, New York, pp. 339-340. Khan, M. J.; Sarwar, S. and Khattak, R. A. (2004). Evaluation of river Jehlum water for heavy metals (Zn, Cu, Fe, Mn, Ni, Cd, Pb, and Cr) and its suitability for irrigation and drinking purposes at district Muzaffarabad (AK), Journal of the Chemical Society of Pakistan, 26, 436-442. InamUllah, E. and A. Alam, (2014). Assessment of drinking water quality in Peshawar, Pakistan. Bulg. J.Agric. Sci., 20: 595-600 Robinson, J. W. (1995). Undergraduate Instrumental Analysis, 5th Edition, Marcel Dekker, New York, pp. 7-8, 316-318. Mendham, J.; Denney, R. C.; Barnes, J. D. and M. Thomas, (2000). Quantitative Chemical Analysis, 6th Edition, Addison Wesley Longman Singapore. pp. 60-64 Manzoor, S.; M. H Shah, M. H; Shaheen, N.; Khalique, A. and Jaffar, M. (2006). Characterization distribution and comparison of selected metals in textile effluents, adjoining soil and groundwater, Journal of the Chemical Society of Pakistan, 28, 10-13. Rauf, M. A.; Ikram, M. and Shaukat, S. (2002). Water analysis of Rawal lake and its surrounding areas, Journal of the Chemical Society of Pakistan, 24, 271-281. Paul B Tchounwou, Clement G Yedjou, Anita K Patlolla, and Dwayne J Sutton, Heavy Metals Toxicity and the Environment, EXS. (2012); 101: pp. 133–164 Kumar, A. (1989) Environmental Chemistry, 2nd Edition, Wiley Eastern Limited, New Delhi, pp. 60-64. Tahir, M. A.; Chaudary, M.; Rasool, M. R.; Naeen, T. M.; Chughtai, I. R. and Dhami, M. S. I. (1999). Quality of drinking water samples of Sialkot and Gujranwala, Proceedings of Tenth National Chemistry Conference, pp. 62-69. Konrad M, Weber S. Recent advances in molecular genetics of hereditary magnesium-losing disorders. Journal of American Society, Nephrol. (2003);14:249–260. Dr. James Robbins, Irrigation Water For Greenhouses And Nurseries Agriculture And Natural Resources , FSA6061. Hodgkin AL, Huxley AF (1952). Currents carried by sodium and potassium ions through the membrane of the giant axon of Loligo. Journal of Physiology 116 (4): 449–472. Afzal Shah,Abdul Niaz,Nazeef Ullah,Ali Rehman,Muhammad Akhlaq,Muhammad Zakir,andMuhammad Suleman Khan; Comparative Study of Heavy Metals in Soil and Selected Medicinal Plants; Journal of Chemistry, Volume20137. Simmer K, Thompson RP. Zinc in the fetus and newborn. Acta Paediatr Scand Suppl (1985); 319:158-63. Fabris N, Mocchegiani E. Zinc, human diseases and aging. Aging (Milano) (1995); 7:77-93. Maret W, Sandstead HH. Zinc requirements and the risks and benefits of zinc supplementation. J Trace Elem Med Biol (2006); 20:3-18. Radojevic, M. and Bashkin, V. N. (1999). Practical Environmental Analysis, Royal Society of Chemistry, Cambridge, UK. 1

Total viable count

Total viable count Microbiology practical: Total and viable counts of microorganisms Abstract: Introduction: Total and viable counts of microorganisms There are several methods for determining total and viable counts of microorganisms Total Cell counting is used Viable counting are used Details of uses of cell counting, including their advantages and disadvantages. There are several methods for determining total and viable counts of microorganisms Include other methods and include references to your source Brief detail of your actual experiment, mentioning the organism and which techniques will be used Total Viable Count This involves counting the colonies produced by viable cells under favourable growth conditions. In pour-plate method, an aliquot of suitably diluted sample is mixed with nutrient agar at a temperature where it is liquid. Then the mixture is poured into petridishes and allowed to set. Alternatively an aliquot of the sample is spread over the agar surface of a Petridis using a sterile spreader. Membrane filters can also be used to determine the bacterial numbers. In this method cells are filtered onto membrane filter which is then placed over nutrient agar surface. Total Cell Count The most common method of enumerating the total microbial cells is the direct counting of cell suspension in a counting chamber of known volume using a microscope. One such counting chamber is Neubauer counting chamber. Another method involves an electronic instrument, Coulter counter. http://www.microbiologyprocedure.com/aquatic-environment-microbiology/total-cell-count.htm http://www.mansfield.ohio-state.edu/~sabedon//biol4038.htm http://www.rapidmicrobiology.com/test-methods/Total-Viable-Count.php http://www.biochemj.org/bj/021/0104/0210104.pdf Materials and methods: 1 ) A pour plate method using viable count: Explain the procedure where cells crosses gridlines of the haemocytometer Discussion In this discussion you should discuss the errors associated with measurement of viability. Discuss ways of improving the experiment and whether this could be achieved with the material provided The experiment could be improved by: Transferring the diluted solution quicker to the agar plate, so that the plate will not get contaminated by the air. The experiment could be repeated more than 3 times for a reliable test The main source of error occurred during experiment was leaving the agar plate lid open to transfer the dilutions for a long time which could of contaminated the agar plate by air. (Madigan, 2009) Reference: Madigan, M. C. (2009). Brock Biology of Microorganisms (12th edition ed.). San Francisco: Pearson international Education.

I am an American Indian :: Personal Narrative

I am an American Indian My life has been put before me like a movie; the script unfolds and guides me through every stage, each act. I was born into an Indian world. From the beginning, I shared with my family, my mother’s family. My father had left my mother, who is 5/8 California Indian, soon after I was born. I grew up without a real father, and only recently have I realized how much I hate that fact. I was born in the hallway of a hospital in the Bay Area. Even then it seems that I wanted to do things my way. It was the beginning of my strangely unique life. Many of the things that have happened to me sound like a story from the mind of a lunatic. I remember the best times were spent with my sister and my mother when I was around four or five and we lived in Truckee. Bridgette was doing cartwheels on the lawn and she got bee-stings on her hands and feet. Dad was gone by then and we lived in Village Green in the trailer. One morning mom told us that Indians never went out looking for eggs and that Easter is really supposed to be about this guy named Jesus—he died, or was born, or came back to life or something important like that on that day a long time ago. We colored eggs anyway for fun. I was very talkative and strong headed—friends with everyone. Old Gladys and Ernie lived next door to my grandparents, just down the street from us in Village Green. I would catch Ernie when he came home from working in the woods with my grandpa and I would see if he saved me any goodies from his lunch. I would eat anything. He usually saved me something sweet; maybe Gladys knew and put it in his black metal lunch box just for me. Those are secrets that I will never know. They passed away with Gladys a few years ago, probably earlier since she had developed Alzheimer’s disease. The old folks—they sometimes take it with them. The trailer park was not near a reservation; Washos never got a recognized land base when they were pushed out of their homeland.

Advertising Essay examples -- essays research papers

Billboards, signs, radios, newspapers, television, and internet are main instruments that we as society see or use everyday and advertisers use as channels to advertise to society. Advertising has a major role in businesses and advertising is a business in itself. How else would businesses get their name and product or service out to the consumer by efficient means and time? A business may create a product and within a couple days reach consumers across the nation to sell that product. Without advertising businesses would not expand into nationwide companies, they would only exist as bricks and mortars in towns where they exist and the community knows them. Without advertising competition would only exist between companies by positive feedback of consumers and their price. Without advertising our society would move at a snails pace to grow. Spending would be minimal as well as sales. Advertising creates more business to be done and more spending to be done. Furthermore, advertising is a paid link between the business and the consumer to inform and persuade them about a product or service to promote consumer sovereignty of products available to the consumer.   Ã‚  Ã‚  Ã‚  Ã‚  To understand the disputes and arguments of advertising, the definition of advertising has to be established. Advertising happens to be anything that distributes a message to another to inform or persuade. A garage sale sign pinned on a tree is a form of advertising. But to keep it from a business standpoint, advertisements are â€Å"paid, nonpersonal communication forms used with persuasive intent by identified sources through various media† (Commerce and Morality p43). In order to make advertising unique from announcements and other types of information, advertising main purpose is to inform and persuade to consumers to go out and buy the service or product. The advertisers have a general knowledge of who their target audience is, but do not know the individual that exist within the target audience. â€Å"They [advertisements] appeal to unknown individuals† (Commerce and Morality p43). For example, advertisers may target teenagers to sell a new hip shoe. Advertisers will have hip teenagers to model the product instead of mother or father figures to identify with the target audience. So on the whole, the advertisers may touch the target audience, but each individual in the target aud... ...m or her to buy something than himself or herself. Coca cola is one of the biggest soft drink companies. The amount of times I will see some form of advertisement of Coca Cola would be less than five times in a day. Is this a lot? The amount I will see a movie advertisement is less than ten times in a day, which involves two and a half minutes of my twenty four hour day, and that is being generous. Consumers should reevaluate what they claim.   Ã‚  Ã‚  Ã‚  Ã‚  Overall consumer sovereignty is not hindered by advertising. Advertising creates more choices for consumers to consider which product they most desire. Consumer sovereignty exists for a consumer if he or she wishes. Many consumers fall into the trap of having to spend money, and right then an advertisement comes along which causes them to buy something. The root of buying products starts with the consumer themselves not the advertisement. Advertising does not control the consumers on what they buy; advertising merely informs them on what they can buy. Consumer sovereignty goes hand in hand with advertising to create an economic system for consumers to obtain products that they wish and for businesses to flourish.

The Pelican Brief Essay -- English Literature Law Court System Essays

The Pelican Brief 1Â º Summary Two Supreme Court Judges has been murdered. Darby Shaw, a law student, wrote a brief (The Pelican Brief) about the linking between the two murders and Vitor Mattience, the owner of an oil company which wants to build a factory in the Louisiana's Marshlands and also a close fiend of the United States' President. Shaw gave the brief to his teacher (and boyfriend) Thomas Callaham who gave it to a FBI lawyer friend of him. Several days after Callaham is murdered by a bomb-car. Shaw get scared because the bomb was thought to kill her too and run away from New Orleans. Meanwhile Gary Graham, a Washington Post journalist, knew about the Pelican Brief from a lawyer, who used the nickname of Garcia, and wrote an article about it. Shaw read Graham's article and called him. While Shaw travelled among all the East Coast of USA running away from killers she phoned several times to Graham. Finally they met in New York City. Both, Shaw and Graham wanted to publish the Pelican Brief but first they needed to affirm the information of the brief with another source. And this source could be Garcia so they began a search all over Washington with only a photo of him and a few details of his private life. Finally after quite a lot of time they found Garcia's widow. He were killed few weeks ago in strange circumstances. Luckily he left in a safe box an affidavit and a video which confirmed the information of the brief. While the Washington Post published the story, starting the biggest crisis in the United States since Watergate, Shaw and Graham flew to the Virgin Islands. 2Â º Description of the main character of the book: Darby Shaw. Darby Shaw is a smart law student at Tulane Uni... ...el, and this will take another three or four months." Chapter thirty. P 255 Bankruptcy: The estate of a person who had been adjudged by a court to be insolvent. "Yeah, I worked in the bankruptcy section on the eight floor, and oil and gas covers half of eight and all of nine." Chapter thirty-six. P 332 & 333. Lawsuit: court case brought by one person or group against another. "Tell Jackson Feldman the lawsuit will be filed at nine in the morning, just as soon as the courthouse opens." Chapter forty-two. P 392. Affidavit: A sworn written statement used mainly for supporting applications and as evidence in court proceedings. The person who makes it must swear that the contents are true before a person authorised to take oaths. "It was a four-page affidavit, typed real neat and sworn to under oath before a notary public". Chapter Forty. P. 367.

Macbeth a tragic hero Essay

A Tragic Hero is a common figure in many of Shakespeare’s works. A Tragic Hero is usually a figure of royalty, fame or greatness. This person is predominately good, but falls from prominence due to personality flaws that eventually lead to self-destruction. Macbeth’s major flaws are his ambition and impressionability. Due to their flaws, a Tragic Hero’s actions are often atrocious and cause them to battle with their conscience after their desires have been accomplished. These battles with their conscience evoke empathy from the audience. A Shakespearean Tragic Hero will always lose their life in the end of the play as a result of re-establishment of what is good in the play. In Shakespeare’s Macbeth, the title figure of the play can be seen as the Tragic Hero. There are many factors which contribute to the decline of Macbeth. The three main factors which contribute greatly to Macbeth’s degeneration are the prophecies which were told to him by the witches, Lady Macbeth’s influence and ability to manipulate Macbeth’s judgment, and finally Macbeth’s long time ambition which drove his desire to be king. Macbeth’s growing character decays from a noble man to a violent individual. When the play begins, Macbeth’s greatness is already established. Macbeth has already earned the title of Thane of Glamis and will soon become the Thane of Cawdor. The fact that he has these titles demonstrates to the reader that Macbeth is good and an important figure of responsibility. He is also addressed as â€Å"Valiant cousin, worthy gentlemen.† (Shakespeare 1:2 26), â€Å"Brave Macbeth, well he deserves that name.† (Shakespeare 1:2 18) and as â€Å"Worthy Thane.† by King Duncan. They way in which he is addressed by the influential members of his country further informs the reader that Macbeth is respectable. However, after Macbeth interacts with the three witches, his curiosity is stirred by their prophecies, especially their prediction that he will become king. He commits murder in order to fulfill their prophecy and then returns to the three witches a second time for reassurance. The three witches, with the aid of three apparitions, then revealed to Macbeth in Act 5, Scene 1 the following prophecies: Macbeth! Macbeth! Macbeth! Beware Macduff! Beware the Than of  Fife!†¦Macbeth! Macbeth! Macbeth! Be bloody, bold and resolute. Laugh to scorn the power of man, for none of woman born shall harm Macbeth†¦Be lion-mettled, proud and take no care who chafes, who frets or where conspirers are. Macbeth shall never vanquished be until Great Birnam Wood to high Dunsinane Hill shall come against him. (Shakespeare 4:1 80-107) Because of these predictions, Macbeth believes that no one can harm him. However, this is a false sense of security. Macduff, who was born by a Caesarean section and therefore was not born of woman, ultimately killed Macbeth, thus revealing that the witches predictions were only half-truths. Macbeth’s good nature is increasingly defeated by one of his major flaws-ambition. His ambition and desire to become king leads Macbeth to take rash and sudden actions that are immoral. This includes ordering the murders of his friend Banquo and his son and Lady Macduff and her children, as well as personally handling the murder of King Duncan. His ambition is also displayed by his willingness to kill anyone who threatens his power. Macbeth is largely influenced not only by the three witches, but by Lady Macbeth as well. Lady Macbeth encourages Macbeth to murder the king, Duncan. She helps plan out the murder and even offers to do it herself. When Macbeth changes his mind and decides not to carry out Duncan’s murder, Lady Macbeth questions his masculinity and love for her. [We will proceed no further in this business.] †¦From this time such I account thy love. Art thou afeard to be the same in thine act and valor as thou art in desire? Woudst thou have that which thou esteem’st the ornament of life and live a coward in thine own esteem, letting â€Å"I dare not† wait upon â€Å"I would†, like the poor cat I’ th’ adage?†¦When you durst do it, then you were a man; And to be more than you were, you would be so much more than a man†¦They have made themselves and that their fitness now does unmake you†¦ (Shakespeare 1:7 34-62) After Lady Macbeth accuses him of acting like a coward, he agrees to continue with Duncan’s murder. Macbeth is a prime example of a Shakespearean Tragic Hero. He is represented as a good man who, through his major character flaws- ambition and impressionability- falls from grace. After struggling with his conscience over the evil deeds he had committed throughout the play, Macbeth is killed and the rightful heir to the throne is restored to power.

Political Economy Essay

Approaches to study of Politics Falls under Political Science We’re made to do the impossible Summary 1 paragraph will do. Provide the insight -Data -Theory used -approach used – use other references to prove your point 3 x 5 Surname all caps first name email address mobile number On approach deals with different meaning of politics Political Science What is Politics & its scope ? Banned words Politics is dirt Politics is nothing more than a means of rising in the world Samuel Johnson Systematic organization of hatred Henry Adams Art of governing mankind by deceiving them. Isaac D’Israeli BASIS of POLITICS Intellect and Will Man Capable of Thinking Politics as a rational activity Man has the capacity to think and realize his wants, needs and interest which are potentially in conflict with others’ wants, needs, and interests. Man cannot survive on its own. He needs someone else Politics as a social activity 2 or more persons Politics as a social activity 2 or more persons Associate with society Politics is concerned with social dynamics. POLITICS AS THE ART OF GOVt What concerns the state Study of government and exercise of authority Authoritative allocation of social values Framework Definition does not provide David Easton Authoritative binding to all Allocation done by the government Social Values anything held important by society budget allocation, privatization, elections Henry Mayo 3 characteristics that separate the political from non-poitical Politics is focused on the governing function through which are: Limitation on Easton on Mayo’s concept of Politics POLITICS DOES NOT ONLY HAPPEN IN THE GOVERNMENT POLTICS AS PUBLIC AFFAIRS State DIFFERENCE OF GOVERNMENT AND PUBLIC AFFAIRS PUBLIC PRIVATE State Civil Society Institutions of the State ( apparatus of government, infrastructure, economy, taxes Autonomous bodies (family, kinship groups, private businesses, trade unions Funded at the public’s Expense Set up and funded by individual citizens Responsible for the collective organization of community life Responsible for the satisfaction of own interests rather than the interest of the larger society. Private with this definition EX: RH Bill It should not be affair of the government. Public Sphere vs Private Sphere Restricted to the acitivites of the state itself and the responsibilities that are properly exercised by public bodies Politics should not meddle on personal affairs and institutions. POLITICS AS COMPROMISE & CONSESUS A daily activity in which differing interests within a given unity of rule are conciliated by giving them a share in power in proportion to their role in the welfare and the survival of the community Bernard Crick Everything will just be fine – for no matter big or small the dispute is, at the end of the day we will just arrive in a compromise. Assumption: Conflict is inevitable Resolving conflict through compromise conciliation and negotiation, rather than violence and coercion. Not limited to government POLITICS IS INEVITABLE LINKED TO THE PHENOMENA OF CONFLICT & COOPERATION Politics as master science. Why Make use other things to make things in order. Existence of rival opinions- conflict People recognize that they have to work with others cooperation Hannah Arendt- Acting in Concert Otto Von Bismarck- Politics is the art of the possible. POWER AS POWER & DISTRIBUTION OF RESOURCES What is power? X has power over Y insofar as Robert Dahl X is able, in one way or another, to get Y to do something That is more to X’s liking And which Y would not otherwise have done. Faces of Power As decision-making – you shape there decisions As agenda setting – You are preventing the person to make a decision As thought control- You are imposing your preference in an indirect or subtle way. Definition of Politics through POWER and allocation of resources FIND THE FOLLOWING QUOTES OF FAMOUS SCIENTISTS Adrian Leftwich- Politics is at the heart of all collective social activity, formal and informal, public and private, in all human groups, institutions and societies. Harold Lasswell Politics is, in essence power: the ability to achieve a desired outcome, through whatever means. Kate Millett â€Å"Politics is a power-structured relationships, arrangements whereby one group of persons is controlled by another. â€Å"POLITICS†- as the constrained use of social power. Robert Goodin & Hans- Dieter Klingemann Constrained because there are already laws establish. Politics takes place in all social activities; politics happen at every level of social interaction Politics concern production, distribution and use of resources in the course of social existence. -Ability to achieve a desired outcome, through whatever means . Approaches to the study of Politics Ontology- the nature of being Epistemology- How do you know what we know? Theoretical – concept & idea Empirical- Evidence, observation History- both theory and experience Methodology- How do we exactly know what we know MAKE A MATRIX OF THE DIFFERENT APPROACHES USING THE FOLLOWING: Nature Ontology Epistemology Methodology Studying Politics requires that we use approaches Approaches presecrbies different ways of studying politics Approaches tell the researcher: Ontology Epistemology Methodology Approaches are lenses in which you see the world In politics Normative Institutional Behavioural Discourse Analysis State-Centered Pluralism Elitism Marxism Brief History of its Development -Philosophical Tradition -Empirical Tradition -Scientific Tradition -Recent Developments Rational Choice Public Choice Discource.