Experiment to Investigate Osmosis in Potatoes Essay

The aim of this experiment is to investigate the movement of water in and out of plant cells. The cells chosen for study will be taken from potato tubers. Firstly I will explain what osmosis is. Osmosis is the passage of water from a region of high water concentration through a semi permeable membrane to a region of low water concentration. This definition contains three important statements: a) It is the passage of water through a semi permeable membrane b) It is the passage of water from a region of high water concentration c) It is the passage of water to a region of low water concentration. All the above statements are included in the definition, but define certain aspects of it. Semi-permeable membranes are very thin layers of material which allow some things to pass through, but prevent others. A cell membrane is semi permeable. They allow small molecules like oxygen, water, amino acids etc. to pass through but will not allow larger molecules like sucrose, starch, protein etc. through. A region of high concentration of water is either a very dilute solution of something like sucrose or pure water. In each case there is a lot of water: a high concentration of water. A region of low water concentration is the opposite of the above, i.e. a very high concentration of sucrose solution: a low water concentration. The water content of plants varies depending on environmental conditions. In Land plants this water plays a vital role in the support of tissues and the transport of materials around the organism. Lack of water leads to wilting and eventually death. Water is mainly absorbed through the roots, which are covered in specially adapted root hair cells, with large surface areas and thin cell walls to aid absorption. It is drawn up the plant through xylem vessels by a pull resulting from the evaporation of water through the  stomata on the leaves. This evaporation is called transpiration and the xylem flow resulting is called the transpiration stream. Soluble food substances formed during photosynthesis are transported around the plant in the phloem tubes. This movement of water through the plant in the xylem vessels or phloem tubes is similar to the flow of blood in humans as it transports soluble mineral salts, nutrients and auxins, (plant hormones), from place to place. The evaporation of water from the leaves also removes heat energy from the plant and helps to prevent overheating. Transpiration pulls water up the plant stem but osmosis is the process whereby water is drawn into or out of cells and tissues. Osmosis is the flow of water by diffusion through a differentially permeable membrane from areas of high water concentration to regions of low water concentration. The diagram below illustrates this: Water can freely penetrate all membrane. The cellulose cell wall does not act as a semi permeable membrane and will allow most substances that are dissolved in water to freely pass through it. Whether water enters the cell by osmosis or not will depend on the balance between external and internal solute concentrations and the state of the cell. If the solutions on each side of the differentially permeable membrane are equally concentrated then there will be no net movement of water across the membrane. This is called an equilibrium state and the solutions are referred to as being isotonic. A solution that contains more solute particles than another, and is hence more concentrated, is referred to as being hypertonic. The less concentrated solution is hypotonic. This concentration of solute particles is usually described as a molarity. Even if the solute concentration external to the cell is hypotonic to the vacuole contents the cell will not continue to take in water by osmosis for ever. The cellulose cell wall provides a rigid barrier to uncontrolled expansion. A cell that is full of water is called turgid and cannot expand further as the outward pressure on the cell wall is balanced by the inward force of the stretched wall. This wall pressure is called turgor pressure  and the internal outward force on the wall is called osmotic pressure. At the other extreme, a cell placed in a solution that is hypertonic to its contents will lose water by osmosis. The cytoplasm will cease to exert a pressure on the cellulose cell wall and the cell, described as flaccid, will lack support. Water loss can continue to such an extent that the cytoplasm, and attached cell membrane, contracts and detaches from the cell wall. A cell in this condition is said to have undergone plasmolysis. This very rarely, if ever happens in nature. As osmosis is the diffusion of water molecules and as diffusion is the random movement of particles from areas of high concentration to low concentration it might be expected that any factors that speed up or slow down the movement of these particles would affect the rate of osmosis. Using knowledge of the process of osmosis and with a good understanding of molarity I should be able to determine the solute concentration of the vacuoles in potato tuber cells. As it would be impossible to measure with any degree of accuracy the expansion or contraction of cells on an individual basis I have decided to look at gain or loss of water in terms of increase or decrease in mass. Mass, I feel, will be a more accurate way of recording the change of the potatoes as when measuring length, it does not take into account the change in diameter of the chip. I will also look at the increase or decrease in length to verify the accuracy of my results and compare the two readings. A cell placed in an isotonic solution should show no change whereas one placed in a hypertonic solution will lose mass. For this experiment, I will have to choose a factor to vary. These factors are: Æ’Ã ¡ Molarity of the sucrose solution Æ’Ã ¡ Surface area of the potato Æ’Ã ¡ Type of potato used Æ’Ã ¡ Age of the potato Æ’Ã ¡ pH of the sucrose solution Æ’Ã ¡ Temperature The factor I have chosen to vary is the molarity of sugar solution as I believe this will be easy to regulate as the concentration can be easily altered using distilled water. I will use 1 molar solution and alter the concentrations as shown below: Molarity of sugar solutionAmount of waterAmount of sucrose solution 0.050 0.241 0.432 0.623 0.814 1.005 For this experiment I will need: Æ’Ã ¡ 1 large potato to produce 18 potato tubers Æ’Ã ¡ cork borer Æ’Ã ¡ distilled water Æ’Ã ¡ 1 molar sugar solution Æ’Ã ¡ pipettes Æ’Ã ¡ 18 test tubes Æ’Ã ¡ ruler to measure length of potato tubers Æ’Ã ¡ electric balance to measure the mass I have selected the above equipment because I feel it will help me to ensure accurate results. To ensure a fair test I will take all my potato samples from the same potato using the same cork borer and keep all of my apparatus the same. I will try and treat each potato tube the same. I will measure each potato tube separately to ensure accurate measurements and carry out the procedure 3 times for each molarity tested. This will mean that I will need to measure 18 potato tubers. Three results will enable me to take an average result, making the results, hopefully, more precise and reliable. If one of the results seems very different to the others, I shall identify it as an anomalous result and retake the reading. When I carry out this experiment, I will get a potato and take some tubes from it using a cork borer I will then cut these tubes into shorter lengths and measure the length and mass of each of the 18 lengths. All the lengths will be cut to 25mm. The solutions will be altered according to the molarity required and cm3 of each solution placed in each test tube. Each molarity will occupy three test tubes. The chips will then be put into each test tube and left over night. They will then be taken out of their test tubes, dried lightly with a paper towel and the new mass and lengths recorded. Once the results have been collected, they will be tabulated and analysed. A graph will be drawn and any trends noticed explained. Prior to the experiment we carried out a short pilot test, using potato chips and solutions of strength 0.0, 1.0 and 2.0 molar solutions. The chips were  25mm in length each, and each chip was placed in 5 cm3 of either distilled water/1.0 molar / 2.0 molar sugar solutions and left for 30 minutes. The potato chips were then measured and the results recorded. They are shown below: ChipSolution 1Water 21.0 molar 32.0 molar Chip numberOriginal lengthResultant length 125mm29mm 225mm24mm 325mm20mm These results show that a potato chip placed in water will gain in length, a weak sugar solution will lose length and a strong sugar solution will lose length also. The results from this test will allow me to choose an appropriate range of moralities in order to find out what the concentration is inside the cell vacuole. I am going to investigate 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 molar sugar solutions. I have chosen these concentrations to try and accurately find when there is no net movement of water, hence the concentration of the cell vacuole. From previous work done on osmosis, I predict that molarity and average change in mass/ length will be indirectly proportional. I think there will be a negative correlation between the two. I think that there will be both loss and gain in mass discovered. I think the graph will look like this but there will be no plasmolysed on my graph, as I do no expect my measurements  to go that far. I hope to be able to identify the point when there is no net movement of water. Analysis of Results The Consequences of Osmosis in plant cells: Plant cells always have a strong cell wall surrounding them. When the take up water by osmosis they start to swell, but the cell wall prevents them from bursting. Plant cells become â€Å"turgid† when they are put in dilute solutions. Turgid means swollen and hard. The pressure inside the cell rises, eventually the internal pressure of the cell is so high that no more water can enter the cell. This liquid or hydrostatic pressure works against osmosis. Turgidity is very important to plants because this is what makes the green parts of the plant â€Å"stand up† into the sunlight. When plant cells are placed in concentrated sugar solutions they lose water by osmosis and they become â€Å"flaccid†; this is the exact opposite of â€Å"turgid†. If you put plant cells into concentrated sugar solutions and look at them under a microscope you would see that the contents of the cells have shrunk and pulled away from the cell wall: they are said to be plasmolysed. When plant cells are placed in a solution which has exactly the same osmotic strength as the cells they are in a state between turgidity and flaccidity. We call this incipient plasmolysis. â€Å"Incipient† means â€Å"about to be†. When I forget to water the potted plants in my study you will see their leaves droop. Although their cells are not plasmolysed, they are not turgid and so they do not hold the leaves up into the sunlight. Graph [1] shows the average percentage change in length of the potato tubers. It shows that as molarity increases the average change in length decreases. The graph drawn looks accurate as the curve did not have to be one of best fit, but went through all of the points plotted showing that all the readings were accurate. The potato tubers gained/ loss length, the molarity increases the sugar solution becomes more concentrated, and more  concentrated than inside the cell. At 0.2M solution there is no net movement of water. As the strength of the concentration increases the cells shrink and become flaccid. Graph [2] shows the average percentage change in mass of the potato tubers. It shows that as molarity increases the average change in length decreases. This graph is very similar to the graph showing the length loss or gain, but appears less accurate as there is an anomalous result. This is at 0.4 molar, it lies off the best-fit curve drawn by 9.2%. The curve is one of best fit and follows the same trends as graph [1]. My results seem fairly accurate and although the graph showing length seems to be more accurate as it is a curve that goes through all of the points, it only shows the change in length, and not in mass. The graph showing mass change [2] gives a more accurate view of what happened as it takes into account the expansion of the potato both ways and has a broader percentage change range. This means that instead of just spanning 30% in total (as does graph [1]) it spans 80% (as does graph [2]). This gives a broader field of results and is therefore more accurate, as the mass is a more accurate result than length as the potato chip will get wider as well as longer. My results do seem to be reliable, as the graphs drawn support my prediction and seem accurate as they all lie on a smooth curve. Conclusion: From the results obtained, I can conclude that the average gain or loss in mass of the potato chip is indirectly proportional to molarity. I can also say that average gain or loss in length of the potato chip is indirectly proportional to molarity. Both of the results show a negative correlation. I can now say that the more concentrated the solution, the more mass/length is lost. This is because the water inside the cell moves out, causing the cell to shrink. When the cells are in a less concentrated solution they gain in length and mass as water is taken into the cell and the cell swells. The results gave enough information to support my original prediction. Both of the graphs cut the x-axis at 0.2, showing that the molarity of the internal  solute of a cell is 0.2m. This also shows that my results were very alike and reliable. Evaluation: My results seem to be very accurate. I can tell this because when the points were plotted they all lay on the curve, apart from one anomalous result, 0.4Mon the graph showing mass. There was however only one anomalous result and the others were all very reliable. This may have been because the results had an average taken so it may not have been accurate. I could increase the accuracy by taking more repetitions which should make the average more accurate. As the potatoes were left over night, the temperature changed which may have affected the results, but it should not have made a drastic difference to the graphs as all of the potatoes were subjected to exactly the same temperature changes. This could be improved by placing the test tubes into a water bath so they were kept at a constant temperature. The same potato was used in each of the experiments, which may also have contributed to the reliability of my results. The mass was more accurate to measure for many different reasons. Length does not take into account the change in diameter of the chips, and you can not measure fractions of millimetres on a ruler, but the electric balance will record change from 2 decimal places, e.g. mass: 1?43 â€Å"† 1?34length: 25 â€Å"† 23 whilst length can only be measured to the nearest millimetre. For the mass, we had to be careful that all the potato chips were dried in the same way as this may have altered the reading. This may have been what caused the anomalous results, as it was lighter that the best fit line i.e. some water may have been lost through harder drying, or squeezing during the drying process. If some of the water evaporated overnight, it would have incresed the molarity of the solutions, thus making the results innaccurate. This could be combatted by putting a bung in the top of the test tubes to stop the evaporation and keeping the sugar slution concentrations the same. To improve the accuracy of the results I would include more concentrations to  find the point of plasmolysis as in my experiment, I did not get to the point of plasmolysis in my experiment, so if I was to extend this experiment, I would investigte a wider rage of concentrations to investigate furthur and increase accuracy. I would also increase the repetitions to 5 per molarity and increase the molarity to try and find the point of plasmolysis. I could also decrease the range between each molarity (every 0.05 for example) to try and find the exact concentration of the potato cells where there is not net gain. This investigation was succesful but could still be made more accurate by some of the above ways.

Anita Desai Essay

The main characters who struck me the most are Uma and her brother Arun; to them are dedicated the two parts of the novel. Personally I think they have a lot of things in common and I’m not only considering the fact that they belong to the same close-knit family: they are somehow subjected to a reality from which they both want to escape. Uma is the plainest character of the novel, I think: she always obeys her parents and makes everything they want her to do. This is not completely a negative point but, reading the first pages of the book, I admit that I would like to react for her to the commandments of her MamaPapa, as they are often mentioned†¦Ã¢â‚¬ Go to the cook†Ã¢â‚¬ ¦Ã¢â‚¬ Prepare the packet for your brother†Ã¢â‚¬ ¦Ã¢â‚¬ Write a letter†Ã¢â‚¬ ¦but how can she manage to do all these things together?! In my opinion Uma is also naà ¯ve, she seems to be somehow tied by a sense of duty to her parents, especially after the failure of her two arranged marriages, and what about the dowry she has squandered?! as her father reminds her. The only â€Å"pause† of her life is given by the visits of Mira-masi, a particular woman who deeply fascinates Uma for the stories she tells her: she represents a ray of hope into the life of the girl, although her parents don’t approve the complicity created between them. Arun, whose birth was really longed for, is sent to the USA where he attends the college: being the only son of the family he has the honour of receiving a good education and he has also the possibility to live far from the oppressing reality of his homeland. But his life remains very unhappy: also the family to which he lives while in America is a sort of weight for him. The second part of the novel seems to me a long digression about food, I think that the food itself is the only reason for a link between Arun and the new family, Mrs Patton in particular. I think both brother and sister are oppressed voices who want to live in peace and to escape from the world they live in, although they aren’t able to rebel against it. For this very reason I would like them to write to each other, what does not happen in the novel. Dear Arun, Maybe for the first time in my life I admit that I’m very sad but what troubles me the most is the fact that I’m not able to find a way out†¦ Our cousin Anamika is dead. Everybody here is trying to give an explanation but†¦what for, she won’t ever come back and there are no acceptable explanations for her death†¦ I absolutely can’t imagine that the urn in front of me contains her ashes†¦she is dead†¦ but I’m dead too. Her awe for the family led her towards death, but what about me? I will stay forever with MamaPapa, I can’t abandon them, they are†¦my life! When mama grips my hand I know, I feel that there is something strong between us and I can’t, I can’t leave†¦ MamaPapa is calling me†¦I have to go. I don’t know if I will ever send this letter to you: perhaps I will burn it. Uma Dear Uma, A new semester at the college is beginning and my stay with the Pattons is over. I’m happy because I can leave this strange family: it wasn’t my place, I didn’t feel comfortable with them, I felt oppressed and obliged to be part of it, maybe only because I felt sorry for Mrs Patton and I didn’t want to disappoint her. This is the reason why I gave her the presents you sent me (but please don’t reveal anything to MamaPapa!): I didn’t want her to be worried about me when I silently walked out of her life. Arun Alice Bravin 5 H Liceo Scientifico â€Å"M. Grigoletti† Pordenone Anita Desai â€Å"FASTING, FEASTING† The novel by Anita Desai appeared insipid to my eyes. If I were asked to collect all the emotions that the book has stirred in my heart, I would find myself in anguishing troubles, for I’m quite numb to it as well I am frustrated by each work of art dominated by a sense of heaviness. The characters are imbued with, or even better, they are emblems of this heaviness which reveals itself mainly in the temperament of Uma, who is the best-built character of the novel. Anita Desai succeeded in the enterprise of creating a character without personality, a woman deprived of her soul. She is the designated victim who is doomed to endure the burden of life, symbolized first of all by her parents. Uma doesn’t strike my sensibility: I don’t feel pity for her, nor would I establish a sort of sympathetic relationship with her; her ineptitude doesn’t arouse my anger, nor would I shake her out of the status of torpor she experiences. I am quite interested in one of the psychological aspects of Uma, that of repression. Uma is not free to be what she wants to be, to do what she wants to do, so she is utterly repressed in her passions, in her feelings, in her personality; this last dimension is completely neglected to her. These inner forces run inside her veins and arteries, like water permeating through the cracks of a rock and when temperatures gets colder, it becomes ice and causes the explosion of the rock. The same happens inside Uma and the implosion is disguised as a sort of disease. Convulsions, nausea which leads to vomit, suffered cries, these moments are the most involving – and at the same time disturbing – moments and situations of the novel. I would have appreciated if Anita Desai had developed this edge of the prism of Uma. Sigmund Freud stated that mental patients are like diamonds, whose structure is based on its corners. In these lines the diamond would break in case it fell on the ground. Uma is like that. Her body seems possessed by a demoniac spirit, her limbs, her bowels are rocked by the unique act of rebellion which is allowed to her. I wonder why the writer has snobbed this issue, which probably assumes a religious and philosophical value and is strictly connected to Indian culture. The heaviness that haunts the book is expressed even by the settings. Concerning this point I would like to recall the image of Uma and her aunt who leave together on a spiritual trip. The bus they catch is incredibly crowded: this episode evokes the image of mingled noises and smells within the dusty and sandy air of India. The writer enables us to appreciate each aspect of the setting – thanks to her detailed language – so that the reader manages to broaden his sensorial perceptions and is caught by the use of synaesthesia. ( The description of the believers bathing in the Gange becomes meaningful in this sense ). Before starting reading the book I thought it would be quite precious for me in order to learn more about the Indian world, even appreciating it by means of the parallel Anita Desai draws with Northern America. But I was wrong: â€Å"Fasting, feasting † doesn’t seem so representative of India: the impression I get is that of a character – Uma – who might be possibly Irish or even Italian. Westerners share the same common imagery about India and this common imagery is banal and dominated by prejudices. The book is ambiguous, in the sense that neither supports this statement, nor deny it. The same ambiguity lies in the second part of the novel – that dedicated to Arun – which takes place in the United Stated of America. Anita Desai gives us tenets and traits of the American Society coming in the story of an American family. Here there aren’t crowded busses or temples, but televisions, junk food, couches, barbecues, baseball matches and people who enjoy all these objects and events. The same dusty air is breathed by Arun when he goes back home walking on the boundaries of the street. The same atmosphere of heaviness which degenerates into disease. For these very reasons I state that Uma and her story are not so â€Å"Indian†. Moreover, I have some perplexities about the last chapter – really shorter than the first one – which doesn’t find a proper literary justification. It is a sort of appendix, even if only almost at the end of the book there’s the precise reference to the tile â€Å"Fasting, feasting† and is embodied by the bulimic girl. Alessandra Crimi 5 H Liceo Scientifico â€Å"M. Grigoletti† Pordenone Anita Desai – Fasting, Feasting Fasting, Feasting is one of the most interesting books I have ever read. Thanks to the brilliant descriptions and the elegant narration the reader has the opportunity to create an imaginary but precise setting were characters develop during the story. I think that this novel is like a mirror because it gives the opportunity to reflect, in both meanings of the word. We can reflect ourselves in the protagonists (mirror-like effect) and we can reflect, think, about the different values and importance that people from different societies give to ideals they believe in. In my opinion the rhythm of the narration is sometimes too slow, but I can understand that it is due to the fact that, once again, it mirrors the context where the story takes place. In India, in fact, there is no frenetic life, no stress, no anxiety of living and for this very reason people can pay attention to little events that we probably ignore. When the father asks for his drink, it seems to me that everyone in the family has to stop and be there for this event; when a guest arrives unexpectedly, all the attention is directed to him; even the choice of one kind of food rather than another seems to be one of the most important problems of the day. . The character of Mumdad is what emotionally touched me most, maybe because to a certain extent I can detect in them some traits my parents have. The image of Mumdad on the swing describes their indissoluble bond. Mumdad are a unique person/entity made up of two different souls. These two souls are always at unison, they never take opposite decisions, they argue but they always find a compromise, they are, in a word, complementary. I always admired this ability to build little by little a life together even if, for a child, sometimes it’s not so easy to accept their decision, or rather, their impositions. Uma is my favourite character. In some parts of the novel I felt really involved in her problems, in her thoughts and desires. She loves school even if she isn’t able to get good marks; she loves learning, she wants to try again, to spend another year at school, she’s sure she will improve. She suffers when Mumdad decide she should give up her studies. She suffers when she understands she is not as beautiful, intelligent as her sister Aruna, and so she is considered a lesser woman. Uma suffers silently, she accepts her condition of inferiority, yet she is always looking for a moment of glory that, unfortunately, never comes. She is like the most humble flower that grows up silently, that is trampled from the gardener that gave her birth, because a rose is blooming next to the humble flower and he must be there to praise the perfection and beauty of the rose. I’m not saying that I reflect myself in Uma , absolutely not, on the contrary, I’m saying that all my life I have been an Aruna, and I didn’t know about it. I’m an only child, there is no Uma in my family, but thanks to the juxtaposition of the two characters I have understood that I have always been loved and pampered and nursed and highly considered and I don’t really know if I deserve all this. This book has really been a great opportunity for me, it has made me reflect on my values and on the meaning of my â€Å"little† life: too often we don’t realise what is around us. But now I want stop talking about me. I would love to write a few lines about arranged marriages. In our Western society, marriage is generally viewed as a value strongly linked with the concept of freedom, the freedom to choose the person with whom we would like to spend all our life. We have this great opportunity and we often waste it. We are free to love a person for his peculiarities and not for his money and often people choose the partner for his richness, we get married and then we divorce and kids are treated as merchandise, we often get married for reasons that sometimes are far away from love and we claim to judge a society where parents choose a spouse for their children. I think that Western people are more contradictory than what they want to admit and perhaps less happy. Perhaps it is this very feeling that leads plenty of us to judge other cultures. DA PIEVE LUCIA 5 H Liceo scientifico â€Å"M. Grigoletti† Anita Desai â€Å"Fasting,Feasting† This is the first book by Anita Desai I have ever read. Her observations are astute whether they are on living conditions in India or USA. Anita Desai uses her words perfectly to convey exactly what she feels,but even if it could seem a contradiction,I think that the problem with the book is its dry, clinical approach in chronicling the lives of the characters, the book lacks passion. I was always on the outside, looking into the lives of people. The book offers few chances of getting involved with the characters ,in fact while reading the book I didn’t feel the compulsion of finishing it quickly. The part I liked better is the first half of the book that deals with life in a small, slow town in India, with rigid parents and well-drafted routines. The †Indian half† is more detailed than the other half which deals with the â€Å"rule-less† life in suburban USA. In the first half there is a partly successful, proud father, who goes through life, with set patterns and no passion. A mother who goes along with her husband, doing what is supposedly right and expected of her, curbing and killing all her innate desires. Three children. The eldest, Uma, clumsy . The middle daughter Aruna, pretty, ambitious and smart, but eventually also a victim of her choices. The last, a son, Arun, on whom the parents put all their dreams and energies. All of them, along with members of their extended family, go through some form of deprivation (of will, of fun, of passion and of love). I think that a merit of this book is the way it highlights the Indian traditions, cultures and mostly the place of a woman in an Indian family. I liked the character of Uma in the book because she is both willing to take a chance with life and at the same time dedicated to her family.She takes whatever happens to her life with such grace that she does not give me a chance to cry for her. I like her inner strength. The story in itself is told from the perspective of the protagonist, Uma, who starts out as a wideeyed child at a convent who shows an enthusiasm for education but with the birth of her brother Arun, Uma takes on the role of nanny. Here, one encounters the distinct preference parents have for the male child. Desai next explores the conventional belief that ties a woman’s worth to her physical appearance. A woman who lacks beauty is often rushed into the first marital offer she receives, only to pay a heavy price later on. Desai shows the challenges a single woman faces regardless of how successful she is. By contrast, Uma’s cousin is portrayed as the ultimate success because she is able to marry well thanks to her looks. She makes the reader wonder how happy she truly is, when she eventually takes her own life. Uma is the main character in the first half of the novel. She is a clumsy, uncoordinated woman who finds it difficult to succeed in almost everything she does – she fails in school, can’t cook, spills food and drink and can’t find anyone worthwhile to get married to. Her father feels that Uma is incapable of fending for herself, as she is too clumsy, uncoordinated and proves a failure in almost everything she does.Uma fails in school, in the kitchen and she even fails to find anyone worthwhile to get married to. The father asks Uma to interrupt her studies in the Christian convent when he find out she not doing very well at school. He feels that it was a waste of time and money to provide Uma an education ;he has other plans for her.She will look after her baby brother Arun and take care of the household while her mother rests after giving birth. Uma’s life is constantly planned by her father.Uma cannot resist her father’s oppressive patriarchal ideology, as she is afraid of the consequences that would befall her if she angered the colonial characteristics of her father. Uma’s entertainment comes in the form of her cousin, Ramu. When Ramu is around, Uma feels at ease. But the father feels that Ramu is a bad influence on Uma. He does not want Uma to be influenced by other men who are capable of brainwashing her to resist the demands of his patriarchal nature.

Peace in Eastern Religions Essay

All Eastern religions have their own ideas about engendering peace within individuals and society. Jainism and Buddhism insist on the protection of all life. Confucianism permits war whenever reality would not allow for absolute peace within society. Daoism, on the contrary, rejects war by almost equating tranquility with the true nature of humanity. It is reasonable, therefore, to pose the following questions: Do all people love peace? If so, why do we have to discuss the subverting of hatred? As a matter of fact, all people cannot find peace until and unless they have come to believe in certain peace-inducing thoughts, such as ahimsa of the Buddhists. All religions propose peace with their particular sets of beliefs. Followers of the religions are required to know the thoughts of their peace-loving leaders, however, before they can find absolute peace within themselves. There is no religion without knowledge, which is why a Jain must know the basic beliefs of his or her community before peace could be practiced in the form of complete nonviolence. I believe that the â€Å"inner peace† proposed by Buddhism is the most important definition of peace. This is the kind of peace that is available to all, regardless of our levels of education. Even before an individual has realized the peace-inducing thoughts of the Buddha, or another religious leader, â€Å"inner peace† is essentially available. Moreover, nonviolence is best practiced with â€Å"inner peace. † If this kind of peace is not available to an individual, he or she may find it difficult also to understand the nonviolent practices of the religion. After all, an agitated and wrathful mind would not be able to practice nonviolence in the best possible way. Despite the fact that Buddhism is an offshoot of Hinduism, Smith-Christopher (1998), the editor of Subverting Hatred: The Challenge of Nonviolence in Religious Traditions, has positioned the chapter on Buddhism before the chapter on Hinduism. This allows the reader to understand the origins of Buddhism after reflecting on the religion. Most importantly, however, the placement of the chapter on Buddhism before the chapter on its origins allows the reader to be introduced to the concept of â€Å"inner peace† earlier on. This is an indispensable form of peace without which no concept of nonviolence is possible to be understood. Seeing that the subject of the book is the practice of peace, it would have been appropriate also to place the chapter on Buddhism as the first chapter in the book – simply for an understanding of â€Å"inner peace. †

Forge by Laurie Anderson Literary Analysis

Forge is Laurie Halse Anderson’s second installment to the Chains series following up her previous novel, Chains. The escapades of the young African American slaves, Isabel and Curzon, continue in this sequel to Chains. Young Curzon and Isabel are forced to endure the hardships of maturing during the demanding time of the American Revolution. Curzon and Isabel are runaway slaves who have a high risk of getting captured with their past catching up to them every step of the way. Forge is told from the perspective of Curzon in a journal-like fashion, each entry has a date. Laurie Halse Anderson had a team of researchers gather an immense amount of information on the American Revolution and the time period to make her Historical Fiction novel as realistic as possible. By making Forge’s novel structure journal entries from Curzon’s angle, Anderson was adept in making the reader connect, investigate, and comprehend his character and the American Revolution further. Curzon is faced with many changes in the Forge including maturing into a young adult. Many readers will be able to make a strong connection to the feelings and the new challenges evoked by young Curzon’s first hand view into becoming a man. Anderson’s target audience is young adults for a reason. Forge is a great â€Å"coming of age novel† like The Adventures of Huckleberry Fin. Since the book is in a journal entry format, many readers who are going through the similar changes can get a day by day account of growing up which creates a very strong relationship between the reader and Curzon. Curzon experiences mixed emotions for Isabel, even ones that he has never felt before. Curzon seemed to have a big brother type of relationship at the beginning of Forge but toward the end he develops somewhat of tenderness for Isabel. All the amends to his life are very evident in his action which is an experience that everyone will more. Each journal entry is headed with an important date that has relevance to events that happen in the American Revolution. Curzon was a soldier in the Patriot army which subjected him to many battles. After reading a Chapter in Forge, you can search the date of the entry. You can find out a great deal more about what Curzon was experiencing. Anderson didn’t just find dates to match events, she had to make Curzon’s point of view as realistic as possible. This required in depth knowledge and study of other eye witness accounts of the American Revolution. Practically everything in Anderson’s novel is has historical significance, even some of the characters. While reading Forge, you are absorbing the culture and events of the Revolutionary War. Slavery is one of our nation’s biggest regrets. Winning our independence is the United States proudest moment. The two are much intertwined with each other and especially with Curzon. Each entry in Forge is filled with the hardships of being a slave and fighting for freedom as well as fighting for your country. Curzon is the narrator of Forge; each of his thoughts and feelings are described carefully in each entry. The callous and inhumane ways that Curzon was treated were completely preposterous. If Forge wasn’t formatted into diary-like entries, the reader would have a much harder time understanding the impulses of Curzon. The first person point of you makes you value his lust for freedom and his covet for the lovely Isabel much more than if it were written any other way.

Summary what you have learned from lectures Assignment

Summary what you have learned from lectures - Assignment Example On the other side, counterproductive behaviors are those that are a hindrance to the accomplishment of the organization’s goals such as hostility, reduced efficiency etc. As an employee, recognizing these behaviors affects the quality of results that one attains in the organization, while to a leader, it is important to encourage the internal and organization citizenship behavior while discouraging the counterproductive behaviors. Organization commitment Organizational commitment can be explained as the desire for an employee to be ad remain part of the organization, it influences whether an employee stays in an organization or leaves to take up another job elsewhere. An affective commitment is whereby an employee stays in an organization because he wants to; he is emotionally attached and involved with the organization. In continuance commitment, an employee stays in an organization because he needs to, he is fully aware of the cost implications of moving from that organizati on and therefore desires to stays, normative commitment is because of the employee feeling that she ought to stay in the organization; one feels obligated to be in the organization. ... Motivation can either be extrinsic, which is because of external outcomes such as bonuses, job security and promotions, or intrinsic which is internal motivation such as a sense of accomplishment, skill development and a general enjoyment of the work. Learning and Decision Making Learning can be explained as a change that results from experience in the knowledge or skill that an employee poses, learning can be through reinforcement that is the use of rewards and punishment, observation and experience. In learning, classical conditioning implies that an employee’s response to a stimulus is not what would have been expected. Through operant conditioning, an employee learns by observing the how voluntary behavior produces certain consequences. To increase the desired behavior of an employee one can either employ the use of positive reinforcement whereby an employee’s desired behavior is followed by a positive outcome, or negative reinforcement whereby negative outcome is r idden off through a desired behavior. As a manager, the best form of employee reinforcement would be positive reinforcement and extinction whereby the consequence of an unwanted behavior is removed for example, stop downloading non-work related videos. Decision-making involves having a set of alternative options and choosing the one that is best suited for the issue at hand, this can be through intuitive decision making, in which the decisions are almost automatic to the person. On the other hand, rational decision making which is a systematic decision is making process and is mainly used by managers in an organization. Trust, Ethics and Justice There are different types of trusts and some depend on the trust, case and example, the disposition based trust, whereby, a person’s

Diversity in Criminal Justice Essay Example | Topics and Well Written Essays - 1000 words

Diversity in Criminal Justice - Essay Example Furthermore, the analysis will consider the classes that are â€Å"at risk† within society; alongside a discussion of why. Additionally, the paper will analyze typical community perceptions of law enforcement; with a discussion of what classes are most likely to engage law enforcement and why. Lastly, the analysis will reference factors of recidivism, poverty, alienation, and collective efficacy (Yamatani & Spjeldnes, 2011). Through such an analysis, it is the hope of this author that the reader can gain a more informed understanding concerning the importance and relevance of considerations of diversity in criminal justice theory and application. Firstly, the concept of an individual being a product of their environment is drawn from the sociological influences that an individual faces within a unique spatial or cultural setting. Within such an understanding, those individuals that are exposed to especially difficult situations, whether this be poverty or high crime rates, will likely gravitate towards these as an understanding of the way in which life is supposed to be defined. By comparison and contrast, an individual that is from a more affluent environment will generally seek to further this experience within their own lives; seeing it as an acceptable status quo; in an almost identical way to the manner through which those that grow up within a poorer or more crime ridden environment will gradually accept this as a reasonable expectation for how life should be defined. Further, an individual that lives within an urban environment is much more likely to be experience extreme levels of poverty. The underlying reason for this has to do with the fact that almost all forms of government housing have been constructed near the urban centers; as a means of encouraging these individuals to find jobs and better themselves through immediate access to the city’s center;

SWOT Analysis Essay Example | Topics and Well Written Essays - 500 words - 3

SWOT Analysis - Essay Example The strengths and weaknesses define the internal environment while the opportunities and threats represent the external environment to a business (Ferrell & Hartline, 2011). Managers should analyze all their internal positive characteristics of their organization with an aim of exploiting them. These attributes represent the strengths of such an organization and the analysis helps in indentifying the extent to which these factors can be utilized. The strengths include the resources at the firm’s disposal that ensure all the business practices run smoothly (Ferrell & Hartline, 2011). In addition, the positive characteristics are considered as strengths from their capability to sustain the organization’s competitive advantage and the positive aspects of the human resource. The managers should focus on these attributes in order to add value to the business operations. These organization’s strengths are within the management’s control. The weaknesses represent the factors that work toward minimizing the capacity to add value through an organization’s operations. Consequently, these factors reduce the expected value of an organizations operations and leads to a decrease in their competitive advantage in the markets. Such weaknesses include inability to utilize the existing resources maximally, poor quality services and poor positioning in the market. These factors are also within the management’s control (Ferrell & Hartline, 2011). Opportunities are aspects of the external environment to an organization. They symbolize the incentives for the existence and the possible progress of business operations in the market. These incentives present an opening to advance business practices and improve the current benefits. They also offer a chance for growth and development of activities that add value to the organizations and its stakeholders (Ferrell & Hartline, 2011). These opportunities also lead to