Friday, September 20, 2019

Effect of Roasting Coffee on Caffeine Conten

Effect of Roasting Coffee on Caffeine Conten Introduction: Coffee has been a popular drink since 20th century, not only because of its different colors and flavors due to different degrees of roasting, but also the effect on which it can keep you to stay awake and to finish your job. It is commonly known that the reason for coffee to possess this effect is because of the caffeine inside the coffee beans. In general, there are four main types of roasting methods in the industry, namely, Light Roast, Medium Roast, Full Roast and Double Roast. There are a variety of uses on caffeine nowadays. By interfering with adenosine in brain and body, it moderates new transmission of signals in CNS, Central Nervous System, and therefore keeps people awake[1]. Due to its short half-life in human body, around 4-10 hours on average[2], it can be used to increase the effect of analgesic for pain control[3] Also it has effect on delaying the muscle fatigue. However, caffeine can cause negative effect on human body, for example, increase the heart rate, breathing rate and makes people feel more alert and energetic, which is also the reason why International Olympic Committee forbid high caffeine consumption. Moreover, it is a mildly addictive drug, so some people cannot control the consumption of caffeine under overdose, which could lead to caffeinism.[4] Also, according to the a study held by Montreal University, if pregnant woman consume more than 1.5 cup of coffee, the chance of miscarriage is doubled; if consume more than four, the cha nce of miscarriage is tripled.[5] Therefore, the choice of caffeine consumption from coffee becomes critical due to its harmful effect on human body. It is advised that, if necessary, 100-300 mg per day of caffeine consumption is acceptable. However, people are usually lack of knowledge about the caffeine content in the coffee and have no idea what amount exactly is in the coffee they are drinking. Thus, they often use their senses to identify the caffeine content in coffee relative to each other. However, there are a lot of myths about this method. For example, those darker coffee has more caffeine than lighter coffee due to its darkness or that the caffeine is destroyed during roasting in higher temperature, so the caffeine content in lighter coffee is higher than that of darker coffee. To prevent over-dosing of caffeine from coffee, it is vital for people to have the general idea of comparing the caffeine content in different coffee when buying a them. In this essay, the caffeine contents in coffee beans roasted in different degrees are examined by experiment through the extraction of caffeine by chemical means. The result would be interpreted by focusing on the roasting process, as coffee beans experience greatest change in physical or chemical change during roasting. Although there are a lot of sub-degrees of the main four roasting degrees, only one sub-degree from each degree would be selected as representative. Research Question: Does different roasting degree affect the caffeine content in coffee beans? Background Information: Original Coffee beans: The original coffee beans are green in color. They contain non-volatile alkaloids, proteins and amino acid, carbohydrates, lipids, non-volatile chlorogenic acid, and volatile[6] compounds. Among the non-volatile alkaloids, caffeine is the most abundant. It contains 1-2.5% w/w [7] of green coffee been. Caffeine: Caffeine is a white, crystalline odorless and bitter tasting solid.[8] It exists in the plant of coffee beans as a natural pesticide. Its formal name is trimethylxanthine, or in systematic naming 1,3,7-trimethylxanthine or 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione.[9] The chemical formula of caffeine is C8H10N4O2. It is a polar[10] organic compound that contains carbon, nitrogen, hydrogen and oxygen. Its density in solid form is 1.23 g/cm3. Due to the presence of nitrogen in the compound, caffeine is base in nature. Since it is a polar molecule, it is soluble to water, especially in hot water. The solubility of caffeine in water is 22 at 25, 180 at 80, and 670 at 100.[11] Under pressure of standard ambient temperature and pressure[12], the melting point of caffeine is 238[13] and it can also sublime at 178in nearly vacuum[14], which will be explained by phase diagram next. Phase Diagram: Three general phases of matter are solid, liquid and gas. Change of phase does not only depend on the temperature, but also the surrounding pressure acting on the chemicals. For example, the boiling point of water is 100, under standard ambient temperature and pressure. However, if the is placed in a lower atmospheric pressure, the boiling point of water is decreased since the vapor pressure is already greater than the atmospheric pressure, so water molecules can escape from the water surface in a lower required energy. Therefore, each compound can undergo phase change to the three phases in different combination of temperature and pressure. Figure 2 is a phase diagram of . The lines dividing the diagram into sections represent that under certain temperature and pressure, would undergo change of phase, which is equilibrium between the two phases that the line is dividing. For example, the red line, if A < 1, then the corresponding melting point increases, while the corresponding boil ing point, A, decreases. Each element has their own phase diagram to illustrate the transition of phases under different combination of temperature and pressure. Figure 3 is a phase diagram illustrating the phase transitions of caffeine, which is different from . This is critical in later interpretation of the result in the experiment. It is because roasting process involves temperature and pressure change. Roasting process: The main purpose of roasting coffee beans is to remove toxins, enhance the taste and concentrate the odor wanted. Since green coffee beans are hard, little smell and contain a lot of compounds that are bitter in taste. Therefore, by roasting, it can result in both physical and chemical change in the green coffee beans. Since caffeine is the main factor that is concerned in this essay, other chemical change will not be discussed. Although there are a lot different roasting processes in the industry, such as fluidized bed roasting, fast roasting or horizontal rotating drum, the basic process of roasting is similar. During roasting, there are 10% to 20% lost in weight from the green coffee beans. Here is a summary of roasting process of coffee beans: Heating of Green Coffee Beans from 3-5 minutes (about 25 to 100) The green coffee beans are heated so that the water in the original coffee beans evaporates at a very fast rate. As this point, the green coffee beans turn from green to yellow due to caramelization of sugar in the coffee beans. Heating of Yellow Coffee Beans from 5th-9th minutes (about 170to 200) The yellow coffee beans are further heated and start to turn to brown in color as more sugar being caramelized. Carbon dioxide and water are forced to escape out of the coffee beans due to the high pressure inside, as the temperature is very high, which also causes the expansion in size of coffee beans. The aroma also starts to give out at this stage. First crack from 10th-11th minutes (about 210) A first sound of crack gives out as the coffee beans expand to almost double in size from green coffee beans in high temperature. Familiar aroma is given out and the coffee beans turn golden brown at this stage. After this stage, according to different degrees of roasting required, the coffee beans will undergo different temperatures and time periods for further heating. During the process, the sugar is caramelized further and coffee oil is released. Light roast: To acquire light roasted coffee beans, the beans from stage 3 are to be roasted about one more minute in about 215 before the second crack. Medium roast: For further half to one minute from light roasted in about 230, a second crack occurs and it means medium roast is finished. Full roast: If continued for half to one minute from medium roasted in about 240, full roasted coffee beans are collected. Double roast: This is the most common final step that coffee beans would be roasted, which is acquired from continuing the roasting from full roasted coffee beans for about half a minute more in about 245. The sugar in the coffee beans at this stage is started to burn and degraded. The above heating process can be achieved by either roasting the coffee beans on a hot plate, which is a traditional roasting method in industry or in home roasting, or passing the coffee beans by high temperature steam. Method: Variables: Independent: Degree of roasted coffee beans Dependent: Caffeine extracted from the coffee beans (g) Controlled: Mass of roasted coffee beans (g) Brand of coffee beans (Starbucks) Apparatus: The following apparatus are used in this experiment. Chemicals: The following chemicals are used in this experiment. Procedures: Extracting chemicals compounds out of coffee beans Measure 100mL of distilled water by graduated cylinder Pour the water into a 200mL beaker. Place the beaker on a hot plate and heat the hot plate to 100. Place a weighing boat on an electronic scale and tare it. Measure 3g of coffee beans, in form of powder, on the electronic scale and record it. Add the 3g of coffee powder into the boiling water. Use glass rod to stir the solution during heating. After the water boils, which means it reaches 100, set the temperature to 80 and allow the solution to stand for 20 minutes to extract as much caffeine as possible. Explanation of Stage 1 procedure: Since caffeine is a polar molecule, it dissolves in water, especially in hot water. It is because increase in temperature leads to increase in solubility of solids, as less energy is required directly from the molecule to break the water molecules apart from each other. Use of distilled water instead of tap water is to prevent any interruption from foreign ions exist, such as decreasing the solubility of caffeine. The water volume to coffee powder mass ratio has to be large to ensure that there is enough water to dissolve caffeine. Hotplate is preferred as it is easier to manipulate the temperature. The decrease in temperature from boiling point is to prevent any further evaporation of water, which may decrease the amount of caffeine extracted from coffee beans powder. Also, the coffee beans have to be in powder form in order to increase the surface area to dissolve completely in the solution. Assumption in Stage 1 procedure: The coffee beans are originated from the same coffee beans farm. No other procedure apart from roasting and grinding is done. The coffee beans are roasted in the same method. The degree of roasting is exactly same as listed on the package. Separate caffeine from other chemicals in the solution Use filter paper and filter funnel to filter out large remaining solids. After the solution in stage 1 is cooled down, measure 2g of sodium carbonate by electronic scale and add it to the solution. Use glass rod to stir the solution and allows sodium carbonate to dissolve in the solution. Use a pipette of 25 mL to transfer 25 mL of dichloromethane to the solution in order to obtain accurate measurement and stir it with a glass rod for a few minutes. Pour the solution into a separating funnel and cover it.[20] Use a stand to hold the separating funnel and allow the solution in it to separate into two immiscible layers. Precaution of Stage 2: Since dichloromethane is a volatile organic solvent, it is toxic when inhaled. Thus, starting from step 3 in Stage 2 and onward, all steps in the experiment have to be carried in the fume board. Make sure the opening of the separating funnel is closed before pouring the solution. Explanation of Stage 2 procedure: Apart from caffeine, the solution from stage 1 also contains different compounds extracted from the coffee beans, which are soluble in water too. The most abundant amount among the other compounds is tannin, which usually exists in plants products. Therefore, the addition of sodium carbonate is to remove those compounds other than caffeine by allowing those compounds to be more water-soluble and hence, allow them to dissolve in water instead of other solvents. The addition of dichloromethane is the most important procedure. It is a good organic solvent to dissolve caffeine. Although caffeine is a polar molecule and has dipole moment of 3.64D[22], it dissolves more readily in less polar dichloromethane, which has dipole moment[23] of 1.14D[24], while H2O 1.84D[25]. It is because caffeine is a large molecule, so small charges are distributed over a large distance, which makes the molecule less polar than water even though is has larger value of dipole moment than water. Therefore, it dissolves more readily in dichloromethane than in water. Since the polarity of dichloromethane is far less than water and is almost non-polar, it is not miscible with water, and due to its molar mass, 84.93g/mol, which is heavier than water molecule, 18.02g/mol, it sinks in the separating funnel. Assumptions in Stage 2 procedure: All caffeine in coffee beans dissolves in the boiling water from stage 1 All caffeine is dissolved in dichloromethane from water and no other compounds. Completion of caffeine extract (In fume board) Label a beaker for the number of trial of a particular kind of coffee beans. Weigh the mass of a beaker by electronic balance and record it. Place the measured beaker under the separating funnel and open the funnel to run the lower dichloromethane down to the beaker. Cover can be opened a little in order to add atmospheric pressure inside the funnel, so that solution can run down smoother. Close the cover of the funnel when reaching the separating line and allow the solution to run slowly. Close the funnel when the line of separation is reached at the tip of the funnel. Place the beaker with collected dichloromethane on a hot plate.[26] Turn the temperature of hot plate to 100. Wait until all solutions are evaporated and the beaker is dried and white crystals remain. Allow the beaker to cool down then measure the mass again on the electronic scale and record it. The difference between the mass of beaker in step 1 and step 9 in Stage 3 is the mass of caffeine extracted from the coffee beans. Explanation for Stage 3 procedure: Each beaker has different mass, so every individual mass must be weighed before usage. Step 1 must be done if trials are being done simultaneously. If some extra solutions from the upper part of the separating funnel are obtained, the entire procedure has to be started again. Since the boiling point of dichloromethane is 40, 100can make sure that any water and dichloromethane are evaporated while 100is still far lower than the point of sublimation of caffeine in vacuum. Assumption in Stage 3 procedure: All dichloromethane is collected in the beaker. Only caffeine remains in the beaker after evaporation of other solution. Finally, repeat the entire procedure to obtain 5 trials result for each kind of roasted coffee beans. Therefore, there will be 20 results obtained. After all procedures are done, make sure all the apparatus which have contact with dichloromethane are placed inside the fume board and all solutions are poured into a big beaker. Label the beaker as toxic organic waste in order to allow the technician to dispose or treat them correctly. Raw data: Observation: White precipitates remained. The precipitates are odorless. White precipitates stick on the bottom of the beaker. Conclusion and Analysis: From the calculations and Diagram 1, it can be seen that the percentages of caffeine existing in each coffee beans roasted in different degree are very closed. Therefore, the answer to the research question based on the result should be: the caffeine content in a coffee bean is not affected during the roasting process. The result is reliable since all percentages lie between 3.2% and 4.0%, which are between the greatest value of lower limits and the lowest value in the upper limits of all percentages. Moreover, the trend shows neither increasing nor decreasing as the degree of roasting increases. Thus, there should not be any relationship between the degree of roasting and the caffeine content in the corresponding coffee beans. I will now interpret the results with regarding the background knowledge. Referring back to the roasting process, it is clear that no chemical is added during the roasting process. However, the roasting process involves high temperature on direct heating with metal pans or using high temperature steam as alternative. One myth about the roasting process is that people claim that some caffeine is destroyed or evaporated during roasting under high temperature, so lighter coffee beans contain more caffeine than darker coffee beans. However, most of the roasting temperatures are under the melting point of caffeine, which is, indeed, not enough energy to destroy intra-molecular bonds. Although the temperature used for double roasted coffee beans are a little higher than the melting point of caffeine, the temperature only stands for about half a minute, which is not enough for the internal part of coffee beans to rise to melting point of caffeine. Neither, therefore, destroy nor evaporation of caffeine is unlikely to occur during the roasting process. Moreover, some myths say that due to the fact that the point of sublimation of caffeine is 178 and the temperature for full roast and double roast is already beyond that temperature, which exceeds 200, thus, the caffeine content in darker coffee beans is again described as less caffeine content that lighter coffee beans. It seems to be reasonable at first, but apart from temperature, we also consider the pressure in roasting process, since phase change depends on temperature and pressure as mentioned before in this essay. Considering the method of heating green coffee beans directly, in order to keep the temperature over 200, it is necessary that the system of the roasting process is under a closed condition, so that less energy is lost to the surrounding. According to the Ideal Gas Law, PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas molecules, R is the gas constant and T is temperature. As the system is closed, the volume, amount of gas and R, in deed, are constant. Therefore, if the temperature increases, the pressure also increases in the system. Same condition is in the method of using high temperature steam. Although it is commonly known that gas is the highest phase and the temperature cannot increase anymore, it is possible to create a steam with higher temperature than its boiling point, which is in a closed system. So if 200 steam is to be used, the roasting system has to be closed. Applying the same principle as before, the pressure also increases with the increase in temperature. Refer to figure 3, the phase diagram of caffeine. As the pressure increases, the blue line, the melting point of caffeine increases, the red line. Since the atmospheric pressure is increased to against the vapor pressure of caffeine, so more energy needed to break the forces between caffeine molecules in solid, which is an exothermic reaction[27]. Also, from the diagram, the line representing the sublimation point, purple rectangle, is only under relatively low pressure and temperature, as 178under vacuum condition, which is not the case in roasting coffee beans. Thus, it is incorrect to say that caffeine sublimes during roasting process. To conclude, high temperature and pressure in roasting process are the reasons that the caffeine content is not affected regardless the degree of roasting that the coffee beans have achieved. Therefore, even different degree of roasted coffee beans is used to brew coffee, the caffeine consumption is the same no matter which type of coffee you prefer. Indeed, decaffeinated coffee is not taken into account. Limitations and Evaluations: Random errors: Random error arises since caffeine may not be all dissolved in dichloromethane since it still has a little solubility in room temperature water. Furthermore, the caffeine extracted by dichloromethane may contain impurities, which affect the mass of caffeine recorded. Also, the measurement using graduated cylinder causes uncertainties. Moreover, the use of other equipments such as electronic balance, which causes 0.01g on the mass measured. Systematic errors: The quantity of sample is too small, which causes unclear results obtained since large difference may be obtained if sample has larger quantity. If there is any difference of caffeine content, it would be more obvious if increase the amount of each coffee powder sample used. However, due to the fact that school laboratory do not have a large beaker at the time the experiment was performed, which required more than 200mL, only small amount of sample in each trial can be used in order to keep a large ratio between the volume of water and the mass of the coffee powder. Moreover, the major systematic error is the separation of two layers in separating funnel. Since the running of dichloromethane into a beaker is manipulated by hands and through the observation. To ensure that all dichloromethane is collected, the closure of the separating funnel is a little delayed due to the bubbles in the separating line, which blurred the exact separating level. Therefore, a little solution of the upper part, which contains the impurities from coffee beans, is added into the dichloromethane in the beaker. After the evaporation, since sodium carbonate is added before and it has high boiling point due to its ionic structure, its mass contributes to the mass weighed on the electronic balance. Methods to resolve the major systematic error- Sublimation of caffeine: In order to resolve the major systematic error, a further step can be done if equipment is allowed in school laboratory. Since caffeine sublimes well under vacuum at 178, as no air molecules against the vapor pressure of caffeine, the collected caffeine can be placed into a flask connecting to a aspirator, which keeps the condition in vacuum, and have a cold finger above it and a heat source below the flask. Caffeine can then sublime and precipitate on the cold finger. Thus, pure caffeine can be collected and weighed. Further unresolved question and suggested investigation: Although the caffeine content is not affected by roasting, a step backward can result in an unresolved question, which is whether green coffee beans grown from different places contain different level of caffeine inside? A suggested way to do so is that; buy different coffee beans of same roasted level from different locations around the world. This can be done by using internet shopping. After, extract caffeine from each example and compare the caffeine content in each coffee bean from different location. Since there are more and more methods of roasting in the industry, such as fluidized bed roasting and fast roasting[29], it would be interesting to investigate whether these new methods of roasting can affect the caffeine content in the coffee beans even they are claimed to be same degree of roasting after all. Bibliography: A, Nehlig; JL, Daval; G, Debry (1992). Caffeine and the central nervous system: Mechanisms of action, biochemical, metabolic, and psychostimulant effects. Brain Res Rev FP, Meyer; E, Canzler; H,Giers; H. Walther (1991). Time course of inhibition of caffeine elimination in response to the oral depot contraceptive agent Deposiston. Hormonal contraceptives and caffeine elimination. Zentralbl Gynakol Oxford A-Z of Medicinal Drugs Oxford Press. Kent, Michael (1997). Oxford Food Fitness (A Dictionary of diet and exercise) Oxford University Press. Anderson, Jean; Deslein, Barbara. The Nutrition Bible William Marrow and Company, Inc. LEUNG, T. M.; LEE, C. C. Inorganic Chemistry and Chemistry in Action Fillans. Library for Science. . About.com Drug bank Purdue University Online Writing Lab Look for chemicals Carleton College » University of British Columbia Coffee-Makers-Cafà © Coffee-Tea Sweet Marias Sonora Environmental Research Institute, Inc. The Scripps Research Institute City Collegiate New Mexico Tech  «Ezine Article » Beverage.cc PubMed database Appendix Chemicals in green coffee beans Non-volatile alkaloids: Caffeine, theophylline, theobromine, paraxanthine, liberine, and methylliberine are present, while caffeine is the most abundant non-volatile alkaloid, which is about 1-2.5% w/w of a green coffee bean. Also, caffeine acts as a natural insecticide for the plant. Moreover, caffeines half life is 5.7 hours in a normal adult body.[31] Proteins and amino acids Proteins and amino acids make up 8-12% w/w of a green coffee bean. Carbohydrates Carbohydrates account for 50% w/w of a green coffee bean, mostly polysaccharides. Lipids Lipids, ester, long chained unsaturated fatty acids and amides are found in green coffee beans. The fatty acid is saturated during roasting process, which accounts for the coffee oil. Non-volatine chlorogenic acids Chlorogenic acids are antioxidant. They are good for health, but 70% of them are destroyed during roasting process. Volatile compounds Volatile compounds are found in green coffee beans as aldehydes, short-chained fatty acids and nitrogen containing aromatic molecules. However, the aromatic molecules in green coffee beans are unpleasant, which is the reason that coffee beans are roasted in order to form pleasant odor of aromatic molecules. Degree of roasting It can be seen that although dipole moment of caffeine is very large, larger than water, the size of the molecule is very large compared to water and dichloromethane. Therefore, charges are spread widely, which makes the polarity of caffeine molecule less polar. Thus, caffeine dissolves more readily in dichloromethane than in water or sodium carbonate, which is ionic compound. Sodium carbonate is used to react and make some compound other than caffeine to be more soluble to water, such as tannin.[34] Nehlig, A, Daval JL, Debry G (1992). Caffeine and the central nervous system: Mechanisms of action, biochemical, metabolic, and psychostimulant effects. Brain Res Rev Meyer, FP, Canzler E, Giers H, Walther H. (1991). Time course of inhibition of caffeine elimination in response to the oral depot contraceptive agent Deposiston. Hormonal contraceptives and caffeine elimination. Zentralbl Gynakol Oxford A-Z of Medicinal Drugs, Oxford Press. Michael Kent (1997). Oxford Food Fitness (A Dictionary of diet and exercise). Oxford University Press. Jean Anderson, Barbara Deslein. The Nutrition Bible. William Marrow and Company, Inc. Volatile means tendency of vaporization. w/w = weight/volume percentage solution Library for Science: http://www.chromatography-online.org/directory/analt-235/page.html About.com: http://chemistry.about.com/od/moleculescompounds/a/caffeine.htm Drug bank: http://www.drugbank.ca/cgi-bin/getCard.cgi?CARD=DB00201 Electrons are unevenly distributed. Purdue University Online Writing Lab: http://employees.oneonta.edu/knauerbr/chem226/226expts/226_expt06_pro.pdf 25and 1 atm T. M. LEUNG, C. C. LEE, Inorganic Chemistry and Chemistry in Action, Fillans. Look for chemicals: http://www.lookchem.com/Caffeine/ Original from Carleton College: http://serc.carleton.edu/research_education/equilibria/other_diagrams.html Red line added as example. Original from University of British Columbia: http://www.chem.ubc.ca/courseware/123/tutorials/exp10A/sublimation/ Coffee-Makers-Cafe: http://www.coffee-makers-cafe.com/coffee-roasting.html#roastHomeCoffee-Tea: http://www.coffee-tea.co.uk/commercial-roasting.php Sweet Marias: http://www.sweetmarias.com/roasting-VisualGuideV2.php The method of extracting caffeine from coffee is improved by myself from originally design from Sonora Environmental Research Institute, Inc.: www.seriaz.org/downloads/4-caffiene.pdf All coffee beans are from same brand- Starbucks. Using separating funnel is more accurate than pouring the solution in another beaker by hand and using filter paper to remove the remaining unwanted solution from the original design. Fig. 4 separating funnels diagram is from Jindal Medical Scientific Instrument D = Debye = unit of dipole moment. Look for chemical: http://www.lookchem.com/Caffeine/ Dipole moment is the vector sum of polarity. The Scripps Research Institute: http://www.scripps.edu/chem/finn/Scipdfiles/dipolemoments.pdf City Collegiate: http://www.citycollegiate.com/dipolemoment.htm Calcium sulphate is not used as mentioned in the original procedure, since it cannot be removed after wards, which could affect the mass of caffeine collected. Exothermic reaction means there is a net energy given out as heat. New Mexico Tech: http://infohost.nmt.edu/~jaltig/Chem333LCaffeine.pdf Ezine Articles: http://ezinearticles.com/?A-Look-at-the-Coffee-Roasting-Processid=1802022 Beverage.cc PubMed database Sweet Marias Rare case that the coffee beans are totally blackened. Sonora Environmental Research Institute, Inc.

Thursday, September 19, 2019

The Canterbury Tales Essay -- Literary Analysis, Geoffrey Chaucer

Through The Canterbury Tales, Geoffrey Chaucer is able to ironically portray the life friars lived throughout the 14th century. Geoffrey Chaucer was born around 1345 and lived in London. (Strohm par 1). He grew up being trained as a civil servant and diplomat. Around 1366 Chaucer married Queen Philippa of Spain (Encyclopedia of World Biography 483). Through being appointed to Parliament, he traveled to many different countries on diplomatic missions and was influenced by the contrasting types of writing (Strohm par 3). These experiences helped Chaucer to gain knowledge about diverse types of people and English writing, which influenced the way he wrote The Canterbury Tales (par 1). When Chaucer wrote, he often mocked and satirized people he saw on their fashion and etiquette, which had a large part in the way he wrote about certain pilgrims in his novel (par 2). Between the years of 1387 and 1400, Chaucer devoted most of his time to writing one of his most famous pieces, The Canterbu ry Tales. This tale is about thirty pilgrims on a journey to the Shrine of Thomas Beckett at Canterbury (par 7). Each pilgrim is expected to tell four stories; two story for the journey to the shrine and another two for the journey back home. The host is the pilgrim that decides upon the best told story. Whoever relates the best tale receives a meal at Bailey’s Inn. Unfortunately, Chaucer died around 1400 before being able to complete each of the pilgrims’ stories (Strohm par 3). In the Prologue to The Canterbury Tales, Chaucer introduces the Friar as someone who, although is meant to live by God’s deeds and the church, is controlled by his own greed. The tale which the Friar later narrates is appropriate because throughout the story it is evident that... ...that they are both lecherous. This is exemplified through the summoner in the Friar’s prologue. In â€Å"The Friar’s Tale,† the Friar states: He was a thief, a summoner, and a pimp. And he had wenches in his retinue, / . . . / He and these wenches made a gang at it Then he would fetch forth a fictitious writ, Summon them both before the Chapter-bench. (Coghill 295) This description of the summoner overall states how the summoner commits the sin of having sexual intercourse with many women. When the summoner is caught by some men, he blackmails them into letting him go free of charge. The Friar is like the summoner because just as the friar repels the vows of his church, the Friar does as well. Overall, it is evident through â€Å"The Friar’s Tale† that both the summoner and Friar are alike in more ways than one. This is shown through their greed, and habits of lying.

Wednesday, September 18, 2019

The Psychological and Emotional Impact of Domestic Violence Essay

Surprisingly enough, domestic violence affects more than just the immediate victim. Domestic violence is a growing, widespread social problem in America. In the majority of all cases, the victim is spousal or intimate. Children that live in a household where domestic violence is prevalent are also affected. Domestic violence not only has short-term effects on the victim, it also has long-term effects. The long-term effect of this violent abuse is usually physical, psychological, and economical. The immediate effects of physical violence are usually obvious, but the long-term effects seem to hide deep within the victim’s body. Many physical injuries sustained by women seem to cause long-term medical difficulties, particularly as they grow older. Many experience arthritis, hypertension, and heart disease because of broken bones, high stress levels, frequent medical deficiencies, and scar tissue from internal damage. The primary and immediate focus for most victims is the physical injury, while the emotional and psychological abuse inflicted has a larger impact overall. Depression, which sometimes leads to suicide, is the most traumatic effect of domestic violence and abuse. In addition, victims may also experience Post Traumatic Stress Disorder. This disorder’s characteristic symptoms are flashbacks, nightmares, anxiety, and insomnia. Children that live in the violent environment may also fall victim to behavioral or emotional deficiencies, including depression and anxiety. A...

Tuesday, September 17, 2019

To what extent can Reagan’s electoral victory in 1980 be put down to the rise of the new right?

1980's America saw a boom in a new group of hard-line Christians; known as the ‘new right', a powerful group of republican evangelicals set on restoring the American morals of old (with somewhat a very archaic mindset for example no equality for homosexuals etc. ) This group took a very strong liking to Reagan and his strong Christian moral conservatism and thus earned him millions of votes in the election of 1980. Was Reagan's victory largely down to the rise of the new right? Or were there other more prominent factors, which lead to Reagan's victory? In 1980s America TV could be used as a powerful political tool, 67% of American's received 100% of all there news from the television, this clearly showing if televised speeches, debate and propaganda were used correctly it could be a direct, simple and powerful method to connect with the people- winning over the votes of millions of American's. Reagan executed all his televised appearances like a professional (he was an ex-Hollywood ‘star' which definitely helped immensely,) ‘he could read an autocue like a professional'. Also his personal traits were key – portraying himself as a ‘physically attractive and charming man who was gracious and polite' this again helped him as all those were key and made Reagan a much more likeable person. Furthermore, Reagan also worked with general electric in the 60's where he was in charge of the TV shows; he also gained valuable electioneering skills during the job, as he had to meet thousands of people daily, also giving unrehearsed speeches to hundreds. The job handed him with a perfect chance to groom his campaigning skills to a respectable audience of 700,000, which was tiny compared to the people of America but still a good start, where he learnt how to be a people person and how to work the TV. In contrast to this his main opponent – incumbent president, Jimmy Carter was quite the opposite to the charming, attractive Reagan. He delivered his ‘crisis of confidence' speech where he found it easy to find problems but couldn't seem to deliver any solutions. This again showed Reagan's superiority in these areas where he delivered short and direct targets such as reviving American strength in the world once again. This again gained him popularity as it gave the people something to look forward to and it showed he meant business unlike the passive carter. Carter, having completed one term in power had done next to nothing useful, he became know as a man who would deal with problems when they came rather than trying to predict them and stop them from happening- not what you want for the worlds most powerful man. During his presidency he grew more foolish and weak in the eys of America. Almost nothing positive happened during his presidency; America's ditente with the USSR ended, there was an energy crisis. Also his failure of a brother somewhat cast negativity towards him making him look more foolish and weak. His ‘crisis of confidence' speech was completely crazy he informed America of its problems including a lack of leadership- ‘now all we need is leadership' a mildly retarded thing to say, as he was ‘the' leader of America, and still didn't give any solutions to the problems he presented. It was clear that nothing had changed for the good from Nixon's presidency. The economy was still stuck in the stagflation caused by Nixon, carter had done nothing but worsen it. Reagan used carters ‘nothing' presidency where almost nothing was done, to his advantage- he promised to renew prosperity by restoring the economy through ‘reaganomics' where there would be lower taxes and less regulation – curing the stagflation. No one knew it would work but it was a lot more than carter offered. Reagan also had vast amount of political training from being an active trade unionist where he established himself as a strong anti-communist (again extremely popular with the lingering cold war and also very popular with the new right who wanted a return of the traditional morals) and also the job was said to help ‘gain an apprenticeship in negotiating, to develop an instinct for when to ‘hang-tough' and when to cut a deal' by a political analyst- which would clearly help him become a successful president. He was also the governor of California from 1967-75, which was a massive success, and he managed to make California the seventh richest ‘country' in the world- showing he knew how to work economics, which is what America vitally needed! He also had the experience of running for president as he had attempted on two other occasions. All this political experience would be priceless for his campaign. Reagan was also extremely conservative which also gained him lots of votes- as he stood for mostly traditional values such as; no abortion, pornography, drugs, and equality for homosexuals. He was also a strong evangelical Christian, which initially gained him the support of the new right and with it groups such as the ‘moral majority' as they had the backing from Reagan and they believed he was going to bring American morals back. He also gained support from the Neo conservative's traditionalists and anti feminists, also vitally he managed to get the support of the born again Christians even though carter tried his hardest to gain there support being a born again Christian too, Reagan managed to do so with his conservative ideology. The new right was essential for his campaign, as Reagan had such radical ideas many would have seen him as crazy and never given him a chance – comparing him to the extremist Barry Goldwater. The new right rather embraced his ideas as they fitted in well with what they wanted. Reagan was extremely lucky that this spark in Christianity coincided with this electoral campaign as if he failed it would most probably be the end of him as he was aging and many were already hesitant to elect such an old man. In conclusion, ii feel it is very clear that the rise of the new right played a very significant role in Reagan's ascendancy to power, and without a doubt without this support he probably couldn't win as it allowed him to create a base of support from which he could build around and add onto. However, I believe that there were other more influencing factors which lead to his presidency such as his political ingeniousness particularly offering an intelligent solution to the stagflation suppressing the country, as well as the mans personal characteristics such as his personal charm and talent in front of the TV which allowed him to manipulate millions as they could see it with there own eyes that he was an astute leader. But, from the election results we see such a narrow win on Reagan's side this even so when millions of democrats didn't even vote, I believe that this shows us that Reagan won largely due to the failures of Carter as even though he was such a useless leader who did next to nothing he still managed to almost win the elections, furthermore he still came so close even with a large percent of his ‘party' boycotting the election- showing carter didn't have a very large support base, and if he did have decent opposition Reagan could have lost by a landslide.

Monday, September 16, 2019

Sonnet Writing

In Judith Rodriguez piece In-flight note, the author illustrates a sonnet within a sonnet that tells the story of a boy writing a love letter on a plane. As she watches over his shoulder, the author acts in an invasive yet inquisitive manner as she intrudes on the love that the boy is trying to express. He seems reluctant to write and torn between his decision to leave and his love for his teenage beau.As she watches him write, â€Å"It’s naive to think we could be just good friends,† she appears to be bitter, frustrated and jaded about love in general. As if a friendship has been loved and lost or a past lover has walked from her in the same way the boy has left. With the use of her language and ideas that she is expressing, it is as though ridiculing the boy for falling in love. As she ends the piece with, â€Å"Pages and pages. And so the whole world ends,† she demonstrates a vivid and dramatic line that reflects a young and teenage love.It shows that the auth or believes that this love is not over and it will continue to play out in life or in thoughts of both the teenagers, for years to come. The striking thing about this sonnet is that although it has a sour feel about it, it is like the author is well aware of heartbreak herself and in criticizing the boy she is in fact criticizing herself from afar. Although the sonnet does not openly reflect a love poem, it still paints a picture of the harsh, cruel heartbreak and pain that it can cause.

Sunday, September 15, 2019

Fortu Powercell GmbH Case

Nowadays, it is critical for the companies of many industries to pay a lot of attention and efforts on the management of technology and innovation. Indeed, the development of new technologies is a potential source of competitive advantage and the ability of the companies to innovate and/or to respond to competitors’ innovation determine their survival in a long-term basis. This ability is more or less developed in companies, regarding their maturity and their structure. Most of the start-ups, which usually function as adhocracies, have a good ability to innovate but struggle to bring these innovations to the market. fortu Powercell GmbH represents a typical example of a start-up with a promising technology offering a lot of possibilities, a new type of battery, but which does not know what strategic direction to take in order to achieve long-term profitability. Studying its situation would the occasion for us to present several concepts that managers in fields where technology and innovation matter need to embrace if they want to take relevant strategic decisions. We are going to start our analysis with a quick reminder of the case, what are the critical points to keep in mind before to present some considerations relative to the work of several experts, researchers in the management of technology and innovation. Finally, we will conclude with some suggestions for the executive team of fortu Powercell. It would help us to answer adequately to the questions of fortu Powercell’s executive team. Another work we would like to quote is the work of Christensen on disruptive innovation. To summarize, we can differentiate two type of innovation: sustaining and disruptive. A sustaining innovation targets demanding, high-end customers with better performance than what was previously available. A disruptive innovation consists in the introduction of a product, a service which is not as good as currently available products but compensates thanks to its simplicity, its convenience, its low cost which would appeal new or less-demanding clients. Thus we distinguish two types of disruptive innovations, the new-market disruption and the low-end disruption. The first one is competing with non-consumption, at the beginning, before pulling out customers out of the mainstream market into the one because of the convenience of the product/service. The second one is focusing at the low-end of the original mainstream value network, on the customers whose expectations regarding the product are lower than what is actually proposed on the market. It is quite critical to define what kind of innovation is the fortu Powercell because the way people should manage sustaining and disruptive innovations are totally different. A sustaining technology strategy is not a viable way to build new-growth businesses for instance and usually once they have developed and established the viability of their superior product, entrepreneurs who have entered on a sustaining trajectory should turn around and sell out to one of the industry leaders behind them. Also, an idea that is disruptive to one business way be sustaining to another. If this is the case, it is better to redefine the product or the service in a way that it would be an opportunity which is disruptive relative to all the established players in the targeted market space or another solution is to not invest at all. Otherwise, it could be extremely difficult to beat the established companies which would defend their positions. Burgerlman and Siegel would also contribute to our analysis with their work on the minimum winning game. This is the â€Å"first ajor market opportunity that is limited enough to provide a clear target for technology and product development efforts in the short-to-medium term, and sufficiently large that successfully pursuing it provides a foundation for long-term corporate development†. When the MWG has been defined, the top management can set relevant milestones against which meaningful progress can be measured. The risk of an undefined MWG is a focus on a set of feasible but fairly limited and unconnected milestones along a road that leads nowhere or the elaboration of a serie of vague visions. The first MWG is influenced by 3 drivers, the technology development, the product development and the business strategy. The management team should put a lot of efforts to balance their influence in order to prevent one of them to dominate the interplay, because of the potential negative effects related to each one of these driver. Nevertheless, one of them should be the main driver but not all the time the company is trying to achieve its MWG. Shifting the balance of drivers in due time is necessary to achieve this goal. We mention this work because we would like to determine if one of the options considered by the fortu Powercell management team is a correct MWG, if they have developed a correct thinking about the options they defined. Considering the nature of the product fortu Powercell wish to sell, we must consider the work of Henderson and Clark on architectural innovation or the technology S-curve for components of Christensen. About the first named, it raises a distinction between several innovations as they could be incremental, modular, architectural or radical. Incremental innovation basically refines and extends an established design whereas radical innovation establish a new dominant design. A modular innovation is an innovation that changes a core design concept without changing the product’s architecture and finally a architectural innovation change a product’s architecture but leaves the components and the core design concepts that they embody unchanged. Qualify the fortu Powercell innovation would give us some clues about how established firms would react if the product is commercialized. The input of the S-curve theory in our thinking is that it forces us to not forget that the other technologies are maybe not mature and still have some potential that could lead to a fierce competition between them and the fortu Powercell technology. Finally, we would like to mention the work of Christensen, Musso and Anthony about capturing the returns from research, which talk about when, where and why integration is needed and introduce the notion of decoupling point. Basically, it illustrates the fact that a product with proprietary, interdependent architecture is subject to an interdependence of its components. The way one component is designed and made depends on the way the other components are being designed and made. In this case, the control of the design and manufacturing of every critical component of the system by a process of integration allows companies to develop a competitive advantage. A product with a modular architectures means that individual sub-systems can be upgraded without redesign everything. In this case, being specialized, not-integrated, is the best solution. We think it is important to keep in mind these notions as fortu Powercell is looking to enter the market of batteries for defined products. If the product has an interdependent architecture or a modular architecture, that makes a difference on how fortu Power should define its strategy. As a conclusion for this part, we want to remind that these theories and works presented are what we mainly used to mold our thinking about this case, to evaluate the situation of fortu PowerCell and its possibilities. III. Suggestions In this part, we are going to present a few suggestions for the fortu Powercell executive team regarding what we presented before. They should give them enough indications to help them find satisfying answers to their questions. If we look at the theories we mentioned, it seems that we can just start by defining a set of questions related to them and to other constraints and see if the first option, the plant in Lepzig, is such a good solution. We could also try to see if there is another solution, another market segment which appears to be better to the point it overcomes the loss of a potential market segment. First option: The plant in Lepzig (Market segment: Power Tools) -How well the fortu battery respond to the four set of questions of the management criteria theory, in the case of the power tools market ? Quite well actually. It appears at first sight that the fortu battery technology would be a profitable technology for the power tools market as it lift a fundamental prior constraint, provide enhanced effectiveness†¦ -Is the fortu battery a disruptive innovation or a sustaining innovation for the power tools battery market ? This question is subject to debate but as we see it, the fortu battery system is in part a disruptive innovation for the power tools battery market. Indeed, it would allow the creation of more powerful cordless tools which lead us to think that this is a new-market kind of disruptive innovation. On the other hand, if we only consider only the less powerful tools such as the screwdrivers, we can see the fortu battery technology as only a sustainable technology. It represents a battery with better characteristics compared to nickel based batteries and that is all. -Is the conquest of the power tools battery market a suitable MWG ? What are their following milestones ? We do not think that the power tools battery market is a suitable MWG because this is only a sustaining innovation for the single largest product category, which means than established players in the market would try to defend their market shares and, in a long-term perspective, we can imagine they would have to sell the business.    Second option: fortu Powercell gives up the power tools battery market and license its technology Another way to formulate the relevance of this option is to ask the question: is there a better MWG that fortu Powercell could choose ? A MWG that will compensate the loss of the power tools battery market segment ? After what we said in the previous argument, that the power tools battery market segment was not a very good MWG, and considering all the other opportunities offered by this technology, it would be surprising not to find a better one. The advantage with this option is that the first entrant with this technology in the global market won’t be fortu Powercell. They would have the chance to have a concrete feedback about what their technology is really capable of when it comes to mass production, what would be the reactions of major players in the business. Quick reminder: the first entrant is rarely the one that would capture the value of the technology. Also, it would give them some funds to be relatively independent from external capital, to keep doing some research or for a potential new venture. They will not have to use such a complicated financial operation to gather the funds and maybe they would not have to deal with conditions defined by their partners or at least it would be less constraining. Finally, they will have some time to think about everything we mentioned and there will maximize their chances to define what could be the perfect MWG for them and what milestones it could imply. But they have to keep in mind that is possible that this technology is not a disruptive technology for any market and consequently that long-term development would be difficult. So we think that there must be a better MWG for fortu Powercell and its technology but what would that be Final suggestions In this final part, now that we have defined that the second option is the best, as we see it, we are going to present what we think is a proposition of better MWG for fortu Powercell and we will conclude with a few recommendations. It is important to precise that this is only a proposition, we are not going to develop this thought too further as we think that the question of the fortu Powercell management team is answered and that they consequently have time to evaluate their different options. We think that the pedelecs (bicycle with electric assistance) would be a good MWG for fortu Powercell as it is limited enough to provide a clear target for technology and product development efforts in the short-to-medium term, and sufficiently large that successfully pursuing it provides a foundation for long-term corporate development. Indeed, the prices and margins are high in this market segment and most of the price depends of the battery. The segment size is important, around 100 million, which is big but not too much. It would be a low-end disruptive innovation compared to the NiCD and Li-on cells in the sense where the bicycles would be simpler, with a smaller battery that won’t need to be recharged too often, which is much more convenient. Indeed, we think that the technological advantage of the fortu Powercell would lead to these improvements, these enhancements for the product. The bicycles could also be cheaper as the price per Wh would be lower which could drive new customers, previously repelled by the high price. The important market of Netherlands will not be far from Karlsruhe, so a plant could be build over there. If this MWG would be a success, it would be possible to move to a sequence of MWG: electrical scooters (Italy is also not that far from Karlsruhe) – electrical cars (which can be considered as the ultimate target, the maximum winning game). Beyond the choice of the MWG, and as a conclusion, we would like to recommend fortu Powercell to pay attention to develop its absorptive capacity, in order to remain to the peak of the battery technology and then be able to respond with energy to the responses and attacks of other players, and in a long-term perspective, in the case they would be successful, to put a lot of efforts to define clearly its strategic intent.

Saturday, September 14, 2019

Discuss the role of Lady Macbeth in the play Essay

Lady Macbeth takes a leading role in the play. From the very first sighting, that we encounter her, her strong powerful character over powers us. I will be focusing on the role of Lady Macbeth, whom is married to the main character Macbeth. Lady Macbeth plays and important role in the play, as she influences events that take place to a large extent. As the play develops, we see Lady Macbeth displaying many aspects and qualities of her personality. Lady Macbeth by nature I believe is a manipulative woman; she has a goal in her sights and seems to use everything in her power to reach it. Her involvement in the murder of King Duncan is dominating; she formulates and directs the whole plan. Lady Macbeth is the person who gives the impetus to Macbeth to do what she believes he must do. The first time we come into contact with her is in Act 1 Scene 5 of the play. We see her performing a soliloquy. Here she makes an immediate impact, performing on her own centre stage, reading a letter from Macbeth. The letter informs her of Macbeth’s and Banqo’s meeting with the witches. It tells her of the witches prophecies to him – the prophecy that one day she and her husband would become King and queen of Scotland. This idea seems to kindle a fire in Lady Macbeth. Immediately she seems to be forming a scheme, putting plans together to fulfil the witch’s forecast of Macbeth’s life. This shows how determined and ambitious Lady Macbeth is. ‘Glamis thou art, and Cawdor: and shalt be what though art promise.’ She promises that what the witch’s predicted will be fulfilled. She indicates that she has immediately formulated the idea of a murder. This straight away creates a first impression on the audience – evil personified! â€Å"I fear thy nature, is too full of the milk of human kindness to catch the nearest way†. Lady Macbeth knows he knows he is a man of honour and that she believes that he deserves the status of a king. Lady Macbeth realises it will be a hard decision or Macbeth, perhaps shocking idea that killing Duncan would be to ‘catch the nearest way’, to becoming a royalty himself. She knows it is an extremely tempting offer and he will suffer greatly over his final decision. She feels that he has a soft personality, and does not have it in him to fight for this position. He is too decent a man to take advantage of this opportunity. Lady Macbeth thinks he has the ambition but lacks the courage. She feels he is a kind, generous, noble man and cant go ahead with what she has in mind for him. Lady Macbeth feels as though only she can persuade Macbeth to Initially Lady Macbeth seems to have the stronger ambition of the two. She appears to be an individual who is totally devoid of moral conscience; she has the appearance of an unstoppable woman. She has strong beliefs that will power/courage are the only two things that should dominate Macbeth’s mind, ‘Screw your courage to the sticking place!’ – Someone who encapsulates evil. The audience comes to realise that Macbeth, who is very tempted by the notion of kingship, has no chance against this self-created monster. He is affect – damned. The witches’ prophecy is something that Lady Macbeth is obsessed by and is determined to will into fruition. Her second soliloquy now shows the igniting of this wicked plan. She realises that Duncan is actually coming to visit her at the castle. Her first few lines are probably spoken in total amazement. ‘He brings great news’; She would probably exclaim this quite joyfully. This works on two levels though. It is a great honour to have the king himself staying the night. It is also her big chance, in her mind, not to be missed! Lady Macbeth makes a decision that he will not be leaving alive. She is fully confident that she is making the right decisions and that the chance that she has awaited has arrived. Lady Macbeth decides to take the opportunity and make sure that Duncan is killed. This shows that Lady Macbeth has no pity what so ever. She isn’t going to let anyone come in her way. Lady Macbeth has clear ideas, and has planned exactly what has to be done. ‘The raven himself is coarse, That croaks the fatal entrance of Duncan’. Since her first soliloquy, the audience has established that she has more ambition, and craves more domination than a woman (particularly at that time) is thought rightly to have. The notions that she has conjured up do not seem to be likely of a particularly feminine personality. She shows very little compassion or worry. Now, she (by the power of magic) wants to get rid of any womanly nature at all, ‘Come you spirits that tend on mortal thoughts, unsex me here’. She would deliver these lines as if calling to a divine power. She calls to the ‘spirits that tend on mortal thoughts’ – these are the spirits that tend on any murderous thought or ambition. Lady Macbeth wants the sympathetic nature of a woman to be taken away from her so that any feelings that stop her from doing this deed are got rid of. She asks them to, ‘Stop th’access and passage to remorse’. She wants to be separate as possible from ‘the milk of human kindness’. She wants her breasts to be instead full of bitter poison. She probably desires to get rid of most human qualities, and, instead be on a par with these ‘magic murdering ministers’ – The spirits of evil and murder. Lady Macbeth becomes very impatient and wants time to pass quickly so that she can proceed with her plans. ‘You wait on nature’s mischief! Comes thick night.’ She wants the night to fall quickly so that it can hide the murder she is planning in the shadow of its darkness. ‘That my keen knife sees not the wound it makes.’ After she says this, it is clear to the audience that he is serious about killing Duncan and will go ahead with the deed. Lady Macbeth at this point has herself very excited. When her husband finally enters, we see him and her together for the first time. In her excitement Lady Macbeth addresses him as ‘ Great Glamis’, ‘Worthy Cawdor’ and then, ‘All hail thereafter’ – The king! This excitement would cause her, I believe, to change the way she speaks This excitement and more importantly the will power she derives from it seems to overtake her husband. This again reinforces the audiences’ suspicion that Lady Macbeth is pushing herself further than is appropriate. When she learns that Duncan will be coming the next day, she tells Macbeth that Duncan will not be seen on the face of the earth after tomorrow. ‘O, never Shall sun that ‘morrow see.’ She clearly states to Macbeth her feelings and what she believes needs to be done, in a straightforward manner. Lady Macbeth tells Macbeth that he needs to change his personality, and that he needs to put on an act. ‘To beguile the time, Look like the time; bear welcome in your eye, Look like the innocent flower, but be the serpent under’t.’ Lady Macbeth wants her husband to act innocent but have an evil soul. All of this shows how she enjoys dominating situations and people. Lady Macbeth likes to be in control of everything that happens. She is trying to persuade Macbeth to do the deed. Then also enjoy the end, which is becoming Queen herself. ‘The night’s great business into my dispatch.’ ‘Leave all the rest to me.’ Lady Macbeth believes that she can sort everything out herself, as she knows what needs to be done, and how she is going to do it. She likes taking control of things. This shows she is single minded. In Act 1 scene 6, Duncan finally arrives. Lady Macbeth now proves how deceptive and two faced she really can be. Duncan arrives with nothing but compliments for the castle and its hosts, ‘ This castle hath a pleasant seat’, ‘See our honoured hostess’. Lady Macbeth shows herself as the perfect hostess, ‘All service in every point twice done, and then done double’. Then she leads him triumphantly, almost as a trophy, into the castle and to his dreadful fate. In act 1 scene 7 Lady Macbeth has her work cut out for her. She constantly has to reinforce her husbands’ resolve, pushing him on. Macbeth’s resolve fails him, in his soliloquy, he is in agony with his doubts, and he decides against following through with the plot. We see her talking to Macbeth about killing Duncan. He thinks of all the reasons why he cannot kill his king. – He sees him as an honourable king, an honourable man. He is ‘His Kinsman’, And Macbeth was his ‘subject’. Macbeth had been honoured by Duncan, being made ‘Thane of Thife’. He also worries what will happen, ‘Tears shall drown the wind’. He reaches his final decision; the murder will not go ahead. Macbeth seems to wake up, he doesn’t ask his wives permission, and he seems to have regained control from her dominating influence. Lady Macbeth enters asking why Macbeth, as expected of a host, was present at the table, Macbeth asks ‘hath he asked for me?’ Lady Macbeth replies, ‘Know you not he has?’ I believe she would ask this question quite firmly; she wants Duncan to be oblivious to any negative feelings Macbeth may have. Macbeth goes straight to the point and out lines his reasons, ‘We will proceed no further in this business’; ‘He hath honoured me of late†¦Which would be worn in its newest gloss, not cast aside so soon’. Lady Macbeth is somewhat taken aback – staggered by her husbands’ decision. Here she thought she had the cat in the bag, her husband was prepared to take this amazing opportunity to grasp kingship. Her willpower had spurred him onto it. Now she saw she wasn’t as powerful and influential as she originally thought she was – She turns on Macbeth. In a moment she realises her willpower had not had its desired affect. Lady Macbeth changes, her tactics switch from ‘unsexed’ to using her feminine powers. As a woman, she will now humiliate and manipulates Macbeth as a man. Lady Macbeth knows that it will sting Macbeth if she taunts him. At the beginning of the play, Macbeth had been mentioned to be, ‘A worthy bridegroom for the goddess of war herself!’ He has been honoured for his great roles in battle by the king himself. Naturally, it will provoke Macbeth if his honour or ‘masculinity’ is challenged. She taunts him: ‘Was the hope drunk wherein you dressed yourself? Hath it slept since?’ Lady Macbeth I believe would utter this in mock disbelief. She would be sounding as if to be appalled at the lack of confidence in Macbeth’ conviction. It makes a fool of him, she asks, ‘Were the hope drunk Wherein you dressed yourself?’ She is saying, was your hope drunk? And now, wakes with a hangover – regretting what it had said? She uses the words, ‘pale and green’ to pictorially describe colours and shades that are normally associated with weak, and sickliness. She then continues, using her feminine power, to question his love for her, saying, ‘Such I account thy love’. Meaning his love to her is as one of his drunken promises. These are not words that Macbeth is accustomed to having directed at him. He is not used to having his courage mocked. He perfectly knows he is not a coward. He is one of the bravest men around. Lady Macbeth expects him to retort this way. He continues though, he puts his finger right on it, ‘Who dares do more is none’. Macbeth means whoever dares to do anything more daring, dangerous or maybe wicked, isn’t human; they are supernatural, probably monstrous. Macbeth is defending himself, he is suggesting that anything more brave wouldn’t make him a man, it would make him monster; and that is the truth. Macbeth knows it’s the truth, Lady Macbeth knows it is the truth, and importantly the audience realise this is the truth. He is prepared to do ‘all men can do’, but he draws the line at becoming a monster. Lady Macbeth would perhaps falter at this. Yet again though, she picks up the offensive, though in a slightly weaker position perhaps. She takes a risk by replying ‘What beast was’t then, that made you break this wicked enterprise to me?’ Lady Macbeth shifts the blame back onto Macbeth, claiming he was the one to hatch the plan, the crucial words being ‘you break this†¦to me’. The audience will pick up on this, realising that it was never Macbeth who ever originated the idea, it was in fact Lady Macbeth. Macbeth fails to see this though and she carries on. She reasons that when he (Macbeth) had proposed this ‘enterprise’ to her, then he ‘were a man’. Lady Macbeth tries to change Macbeth’s perception of what is manly. She tries to change what Macbeth perceives as man, being brave and daring to do ‘all that may become a man’, to a man being almost a killing machine. She does this by saying ‘When you durst do it, then you were a man’. Lady Macbeth thinks that a man is someone who would do anything to make himself bigger, stronger or more powerful. Lady Macbeth then uses a slightly different tack; she uses shock tactics to demonstrate how she feels about following through with the murder. Lady Macbeth brings to mind the most grotesque image that she can think up. She says she would take a child, hers, and ‘while it was smiling in my face†¦and dashed the brains out, had I so sworn as you Have done this’. By this, Lady Macbeth reveals a side to her to her audience. She is evil and she will stop at nothing. What she meant by killing her child like this was to show her strength of conviction and willingness to carry out her word ‘had I so sworn to you [Macbeth]’. It appears to work, and Macbeth falters saying (indicating a change of heart) ‘If we should fail?’ Lady Macbeth has now re-engaged him, and Macbeth is curious again. Again Lady Macbeth shows her strength of conviction and will, ‘Screw your courage to the sticking place – and we’ll not fail’, Lady Macbeth I think hits these words with a real sense of belief, urging Macbeth to think about it. Failing? – Lady Macbeth declares that this is impossible. She proceeds to outline her plan, believing she now has Macbeth back onboard. She will make Duncan’s guard’s drunk and she and Macbeth will commit the murder, leaving the guards to take the fall for it. The plan is ruthlessly simple and cowardly. The audience cannot help but realise this; Lady Macbeth has thought this through non-stop and has made her plan as efficient and as fool proof as possible. Lady Macbeth makes it so safe, and has reconfirmed Macbeth’s original intentions – but still Macbeth will know in the back of his mind, this is all wrong. Lady Macbeth has powerfully changed Macbeth, using his moral weaknesses exposed by his ambition, to change his mind. Macbeth has let his wife’s iron will destroy his conscience and his somewhat ‘sophisticated’ moral sense. Again though, the audiences are left with sub-conscience doubts about Lady Macbeth’s appearance of unshakeable strength. In Act 2-scene 2 there is more talking between Macbeth and Lady Macbeth, about killing king Duncan. Here she displays he having controlled and authority over Macbeth’s mind and actions, but also how support she can be towards him. One of the things that particularly stood out was her inability to commit the murder herself. For all the boasting and the character she built up of herself, Lady Macbeth cannot do any of which she said she was so sure of. Lady Macbeth was supposed to commit the murder herself, but she goes in and comes straight back out again, being startled by a bird’s cry as she stands there. Macbeth comes up the stairwell and sees Lady Macbeth there; she seems to make some excuses for her being there saying, ‘I am afraid they have awaked’, then she admits, ‘ And ’tis done. Th’ attempt and not the deed’. Lady Macbeth has faltered, and she cannot bring herself to the deed she swore she would do even if she had to dash her own child’s brains out. She came into the chamber and almost I would imagine shouts the line, ‘Hark! I laid the daggers ready’. Lady Macbeth is angry I think with herself, as if she is ashamed. She makes the excuse that she entered, saw Duncan and saw he was like her father in his sleep – and could not kill him baring in mind she was prepared to kill her own child. Macbeth nevertheless has killed Duncan. Macbeth is almost immediately feeling the consequences; he recounts it as if he suffered immediate guilt whilst he was doing the murder. Macbeth has started to crack; he is breaking down, saying that he heard voices saying he would no longer be able to sleep. What Lady Macbeth now faces is what ultimately destroys her. She has now to bear up to Macbeth’s faltering conscience amidst her own despair. Lady Macbeth tries to silence Macbeth, trying to drive the thoughts of guilt out of her mind – trying to remain strong saying ‘A foolish thought to say a sorry sight’. A few lines on Lady Macbeth prophetically says, ‘These deeds must not be thought. After these ways; so, it will make us mad’. It is here that Lady Macbeth’s character has its biggest and final test. Lady Macbeth now reverts into a controlling wife, as she tries to distract her mind from what has happened by snapping into gear and sorting out what has happened. She is practical and tells her husband to go and wash himself of blood, and then she summons whatever courage she may have left to go and put the daggers with the guards to ensure that they have the blame. Again Lady Macbeth is practical, there is a knock at the door of the castle and she restrains her husband from answering it. Lady Macbeth’s mind is in full gear with this murder. She sees that it would be strange if they were to answer the door at this hour of the night saying, ‘Get on you’re night-gown†¦And show us to be watchers’. Lady Macbeth is in full control of her faculties at this point, whereas her husband is starting to really break down, already wishing he’d not done it ‘Wake Duncan with thy knocking. I would thou couldst’. Lady Macbeth is not the strong person she appears to be though. Following on in Act 2 scene 3, Macbeth and Lady Macbeth perform an amazing drama to dupe them, and prove their innocence. Macduff arrives at the gate and goes to see the king in his chamber, and returns with the news of his death. The blame obviously falls upon the guards and Macbeth convincingly puts up a show that he loved Duncan so much that he kill the guards on the spot, Thus, removing any ability for them to defend themselves. Now, this does temporarily shift suspicion towards Macbeth, but he gives such an intricate and heartfelt speech, that combined with Lady Macbeth swooning and starting to faint, â€Å"Help me hence, ho!† She draws the attention away from Macbeth, it is enough to convince the others of their innocence at least for the moment. The murder also frightens Duncan’s sons; they fear that they might be next; this is probably true, since in order for Macbeth to have a good chance to become King, both of them must be killed. Therefore, they flee, and this puts them under suspicion. It could be reasoned that they might have killed their father in order to quicken their ascension to the throne. Again, all of which are complete lies. Such harmonious co-operation when under pressure shows that Lady and Lord Macbeth do indeed work well together, and have an excellent relationship. In Act 3-scene 2 Macbeth is crowned King, one of the first things Macbeth does, is have Banquo assassinated. It is important to note that he does this independently of his wife; his coronation seems to have given him new courage. We see Lady Macbeth being impatient. Lady Macbeth is again telling Macbeth to put his past behind him, ‘What’s done is done’, Putting more strain on their relationship. Macbeth obviously however has taken over, he hints to Lady Macbeth that he has a plan in action and she should be, ‘Innocent of the knowledge, dearest chuck’. Lady Macbeth knows something is going on, however see isn’t fully aware of it. She thinks this after a conversation with Macbeth as he means to be unsettled and sneaky. Lady Macbeth tried to lighten things with Macbeth by telling him not regret anything. â€Å"Things without all remedy â€Å" She is telling him not to think about something that can’t be corrected. Lady Macbeth is the opposite however; she is at heart a weaker woman than Macbeth is the stronger man. She does start to feel guilt and consequences for her actions; she cannot keep the ruthless monster image up. Lady Macbeth wants to know what Macbeth is planning behind her back, however he refuses to tell her that he is plotting to kill Banquo. â€Å"Whats to be done† Lady Macbeth shows that she is curious and dislikes being left out with Macbeth’s plans. Macbeth even teasingly knows this, saying in affect that she would prefer not to know the details of his plan. Lady Macbeth herself however, is doubtful in her new found power; she is troubled by their present state. However, she does tell Macbeth this, who is already worried, almost to the point of suicide by his speech. Instead, she comforts him again, advising him not to brood on the past. However, he is still deeply concerned. He tells his wife of his plan to kill Banquo, and for a change, she asks him what to do. He tells to do as she has told him; to put on a false face, and pretend nothing has happened. Macbeth does however, suggest his discontent about his deceitfulness, but recognises its necessity. This switching of roles due to Macbeth’s increased confidence and Lady Macbeth’s lack of is perhaps quite important. It shows that their relationship is changing. The Lady Macbeth of Act-1 has lost its initiative in evil. Act 3 Scene 4 Lady Macbeth becomes increasingly worn down by her husbands’ own mental deterioration. Macbeth makes quite a scene at his feast, holding a party to celebrate his title of king. It starts with him not sitting at the table and instead having a furious conversation with one of the murderers of Banquo. Lady Macbeth hurries in saying that ‘You do not give a cheer. The feast is sold’, Macbeth is acting strangely to his guests, but this is not the strangest thing to happen yet by far. Macbeth becomes hallucinated and colour drains from his face and he begins to shout because of seeing a ghost, only visible to himself – a ghost of Banquo. Lady Macbeth immediately covers for him, â€Å"Sit worthy friends† Lady Macbeth realises that Macbeth is about to give the whole game away and has to desperately rescue herself and her husband. She tells the guest that Macbeth is having a fit, but he will soon recover. She calms Macbeth down, by calling him out the room to ensure he doesn’t say anything he shouldn’t. You have displace†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬  Lady Macbeth is totally confused to why he is acting like this; she then goes on by asking the guests, with a complete lack of ceremony, to leave immediately. â€Å"Stand upon the order†¦Ã¢â‚¬ ¦.† Lady Macbeth is very rude in telling the guest to go, as she fears that Macbeth might say something he shouldn’t. This surely wears her down and worries her of what the guests may think. Lady Macbeth tries to pull Macbeth together, but it has no effect. She is undergoing along with her husband a state of intense mental, physical and emotional exhaustion. This is the last time the Macbeth’s are seen together as one working unit. Lady Macbeth says little at this point and cannot seem to match her husbands’ vigour. Macbeth says, ‘I am†¦o’er’ Meaning he admits that he is too far-gone, it is simpler to carry on his bloody ways than to turn back now. Lady Macbeth urges him to stop, telling him he lacks sleep and needs to go to bed. Macbeth’s range of evil has outstretched Lady Macbeth’s, she is beyond it all. This is the last time that Lady Macbeth is seen as sane. In fact, Lady Macbeth is not present in any of Act-4, not appearing until into Act-5. Scene I is where the most obvious change of Lady Macbeth unfolds. The long absence of Lady Macbeth until Act-5 reinforces her appearance as the mad, delusional woman in scene ii. Her mental stability reaches its terminal point and this once monster, becomes nothing but a nervous wreck. The human traits of guilt, conscience and common human feeling all catch up with Lady Macbeth. She could not run from them forever, and now they have reduced her to a pitiful state. Lady Macbeth walks around her bedroom, shuffling nervously, crying out when she cannot remove a figurative spot of blood – or guilt. Lady Macbeth recounts her guilty deeds but as a sign of her mental disarray, she cannot tell them in any chronological order. I would imagine an actor playing the part of Lady Macbeth telling each incident that she calls to mind, as if it cuts her mentally – breaking up her mind. The agony that Lady Macbeth passes through will eventually lead to the last part of her deterioration. Her agony will drive her to despair and ultimately, she is mentioned to have committed suicide. In act 5 scene 5, we learn that Lady Macbeth is dead. This is a bad end for Lady Macbeth; though, a woman of powerful ambition and driving force, and a person in an influential position – she dies pathetically. This end runs parallel to the events of the play and reflects on the outcome of the theme of evil throughout. Lady Macbeth thought she was as evil as she could wish to be, as unconnected from other womanly and human qualities as she might choose. She believed ambition and will power were everything – yet it was all these things that ultimately lead to her end. Lady Macbeth thought that her ambition and worldly success would justify any move she made. Lady Macbeth would not accept that evil is self-destructive. Her impressions of overpowering evil were in the end of a day – only an impression. Her conscience first shows its greater power when she is unable to kill Duncan herself. Her next step was when she had to come to terms with her and her husbands reality of evil. The mounting guilt becomes heavier and heavier on her, with the killing of Banquo and the guards. She has to continue to keep up her appearances and her husbands resolve, excusing his behaviour, supporting him, all whilst keeping on top of her own mental condition until he overtakes her in evil. This has its obvious end; she has no way of escape, which further tortures her mental condition. The only way out of her self-created downward spiral was her own death.