Hamlet by William Shakespeare Essay Example for Free

Hamlet by William Shakespeare Essay You make decision everyday; whether it is choosing what you make for breakfast or choosing what you want to be when you grow up. It is natural in humans to make decisions and act on what they believe is to be true. This not only applies to humans, but authors use them in their books or plays to create different types of characters. In one of the greatest works by William Shakespeare’s Hamlet, there are characters that make many different kinds of decisions that determine their role in the book. In the play, the protagonist Hamlet, after his father’s death, is angry about his mother’s hasty marriage to Claudius. He sees a ghost of his father one night and tells him that Claudius had murdered him. Hamlet plans to kill Claudius but he has trouble making decisions and throughout the play, his poor decision making skills bring downfall to himself and many others. Every tragic hero has a tragic flaw and Hamlet’s tragic flaw is his inability to make decisions. Hamlet’s inability to kill Claudius after hearing from the ghost, that he had killed Hamlet Senior, contributes to his stubborn indecisiveness, which brings about his own downfall. His indecisiveness leads to many character’s deaths; such as Rosencrantz, Guildenstern, Laertes, Polonius and his own mother. He had many chances of killing Claudius but he constantly over thinks the situation thus delaying his major task of killing Claudius: To take him in the purging of his soul When he is fit and seasoned for his passage? No. Up, sword, and know thou a more horrid hent. When he is drunk asleep, or in his rage, Or in th incestuous pleasure of his bed, At game a-swearing, or about some act That has no relish of salvation in ’t—. Then trip him, that his heels may kick at heaven (III. III. 85) This is an example of Hamlet being indecisive on whether or not to kill Claudius in the Church after the Mouse Trap play. He decides not to kill him there because he is praying and therefore will be forgiven for his sin. This results in delaying of his main task and also made more room for error; such as killing Polonius and also getting sent to England, which leads to Rosencrantz and Guildenstern’s deaths. If Hamlet would have decided to kill him then, he would not have created the mess he ends up making at the end. Hamlet’s inability to talk and discuss to Ophelia about what is happening, after she starts rejecting his messages, leads to losing his love and ultimately ends up to her demise. Even though they were in love, when Ophelia begins rejecting Hamlet’s messages because Polonius told her to, Hamlet tells Ophelia that she was not worth anything to him. This leads her to believing that Hamlet does not love her anymore. As a conclusion, she goes crazy and out of control; for example: By Gis and by Saint Charity,  Alack, and fie, for shame! Young men will do ’t, if they come to ’t. By Cock, they are to blame. Quoth she, â€Å"Before you tumbled me, You promised me to wed. So would I ha done, by yonder sun, An thou hadst not come to my bed. (IV. V. 40) This is the scene where she has become insane. She sings about how a man promised her to marry her before they went into bed together but he left her. On top of Hamlet’s rejection, Hamlet has killed her father, Polonius, so she has completely lost control of herself. She sings a very sorrow song in front of many people and also gives out fake flowers to people. After this scene, she ends up committing suicide at the lake. If Hamlet had talked with Ophelia about what was going on and why she was ignoring her messages, she would have not become insane and Hamlet and Ophelia would still be in love. Hamlet’s final flaw is his inability to decide whether life is worth living or not, which contributes to his stubborn indecisiveness, which ultimately leads to his own downfall. Hamlet is very confused about his own life and is out of his mind. He is very depressed from his father’s death and the feeling of betrayal he has from Gertrude, his mother, who remarried right after his father’s death. He does not know if life is worth living or not and this is obvious when he says: To be, or not to bethat is the question: Whether tis nobler in the mind to suffer The slings and arrows of outrageous fortune Or to take arms against a sea of troubles And by opposing end them. To die, to sleep No moreand by a sleep to say we end The heartache, and the thousand natural shocks That flesh is heir to. Tis a consummation Devoutly to be wished. To die, to sleep To sleepperchance to dream: ay, theres the rub, For in that sleep of death what dreams may come When we have shuffled off this mortal coil, Must give us pause. (III. I. 56) This is his famous soliloquy on the topic of life. He compares life and death and he cannot decide whether or not to stay alive or to be dead. He believes that death is the way to escape all his troubles and his depression but then on the other side, he knows he needs to complete the task of killing Claudius. His indecisiveness about his own life delays his action from doing what he really wants to accomplish. Even though Hamlet kills Claudius at the very end, as a result of his indecisive behavior, he has taken way too much time to accomplish one single task. Also, it killed many innocent people he could have prevented from killing them. If Hamlet would have not been so depressed and actually decide whether or not he should stay alive or die, he might have had a better chance accomplishing his tasks much faster and efficient. Clearly, Hamlet is very indecisive all over and his indecisiveness brought about his own downfall. His mother’s death, his love’s death and his friend’s deaths are all caused by Hamlet. If he were to be decisive and straightforward, he could have killed Claudius much faster and he also could have prevented all of the deaths that happened. Many theories attempt to explain why Hamlet takes so long to kill Claudius but out of many theories, Hamlet’s indecisiveness is the only one with full satisfactory answers. Every book or play has a tragic hero and every tragic hero has a tragic flaw and in the play Hamlet, there is no exception. These themes present in many of William Shakespeare’s plays are relevant even today. There are times when we are indecisive when it comes to difficult situations. To be able to decide and to act on what you decided to do is what we try to aim for, however, since Hamlet did not complete this, he led himself to his own downfall and also many other’s to their downfall as well.

Impact of Social Relationships on Health

Impact of Social Relationships on Health There is considerable evidence that social relationships can influence health, but only limited evidence on the health effects of the personality characteristics that are thought to mold peoples social lives. We asked whether sociability predicts resistance to infectious disease and whether this relationship is attributable to the quality and quantity of social interactions and relationships. Three hundred thirty-four volunteers completed questionnaires assessing their sociability, social networks, and social supports, and six evening interviews assessing daily interactions. They were subsequently exposed to a virus that causes a common cold and monitored to see who developed verifiable illness. Increased sociability was associated in a linear fashion with a decreased probability of developing a cold. Although sociability was associated with more and higher-quality social interactions, it predicted disease susceptibility independently of these variables. The association between socia bility and disease was also independent of baseline immunity (virus-specific antibody), demographics, emotional styles, stress hormones, and health practices. Along with human population, the inequality in the distribution of global income has grown in recent decades (7). In 1992, 15% of people in the worlds richest countries enjoyed 79% of the worlds income (8). In every continent, in giant city systems, people increasingly come into direct contact with others who vary in culture, language, religion, values, ethnicity, and socially defined race and who share the same space for social, political, and economic activities (9). The resulting frictions are evident in all parts of the world. Ecologists and population biologists have long used the logistic model of population dynamics as a way to understand the cause and effect relationship between carrying capacity and population size (Wilson Bossert, 1971; Gotelli, 1998). As Malthus (Petersen, 1979) and Darwin (1859) understood, in the absence of limitations on resources, i.e., space and food, populations will grow exponentially. However, if resources are limited, the growth rate begins to decelerate well below the maximum population size that the environmental resources can support. Deceleration continues until a more or less equilibrium level is reached. This equilibrium occurs near the asymptote of environmental limits. When plotted, the resultant growth takes the form of a sigmoidal or S-shaped curve. Typically, in the laboratory and field. The second evolution refers to the industrial revolution, which took place mainly in the 18th century alongside the global agricultural revolution (Cohen, 1995). The third evolution is the advancement of public health and medicine which began in 1945. This led to a stark rise in the population as the development of vaccines and antibiotics increased life expectancy in the countries with access to them (Butler, 2004). The final evolution, per Cohen (1995), is the fertility evolution which began in the 18th century and has still not emerged in some developing countries (Cohen, 1995). Contraception and education for women have contributed to a fall in fertility rates among more developed countries (Butler, 2004). The end of the Second World War marked a fifth turning point in human population growth (Hibbard et al., 2006). No one had ever lived through a doubling of the population until after the Second World War and now, some of us have lived through a tripling of the population (Cohen, 2003). Today, the human population is distributed unevenly around the globe; with 60 percent residing in Asia, 16 percent in Africa, 10 percent in Europe, 9 percent in Latin America and the Caribbean and the remainder living in North America and Oceania (Cohen, 1995). Not only are we unevenly distributed, but so are our resources. In 2015, 795 million people do not have enough to eat (FAO, 2015). Simmons (2000) describes this phenomenon as a logistical distribution problem. We produce plenty of food on Earth, enough to feed everyone, yet millions starve to death every year (Simmons, 2000). Global life expectancy is expected to increase to 83 years by 2095 and by then, the human population will have at least doubled (UNDP, 2015). This will put further stress on our resources. If we struggle to feed everyone today, we will certainly struggle to feed a longer-living, doubled population in the future (UNEP-GEAS, 2012). How has carrying capacity been estimated? Many concepts have been used to try and decipher a limit to the human population. These include optimum population, carrying capacity and limits to growth (Van den Bergh Rietveld, 2004). What these concepts have in common is that they all acknowledge the basic requirements for a human being to survive; water, land, food and other resources from nature (Van den Bergh Rietveld, 2004). These resources have a limit and so it follows that the human population also has a limit (Van den Bergh Rietveld, 2004). Thomas Malthus theory about human population growth provided the basis for the concept of carrying capacity in relation to humans (Seidl Tisdell, 1999). The infamous theory was put forward in 1798. Malthus proposed that it was in built into the population curve for the population to run out of resources, causing a decline in the population by positive checks (e.g. disease, famine, war) or by preventative checks (e.g. marriage restrictions) (Butler, 2004). Malthus theory, though flawed, became so influential partly due to the attitude of Victorian England in the 18th century (Seidl Tisdell, 1999). During this time, disease and poverty was rampant among the lower classes as they moved into cities (Seidl Tisdell, 1999). The concept may have been relevant at Malthus time, but the human population has moved far beyond these limits now (Seidl Tisdell, 1999). Verhulst (1838) epitomized Malthus theory through the omnipresent logistic equation (Figure 2) (Lima Berrymand, 2011).

Chemical composition of Ambrette Essential Oil

Chemical composition of Ambrette Essential Oil Chemical composition of the essential oil of ambrette (Abelmoschus moschatus Medik.) from subtropical region of north India Ram S. Verma*, Rajendra C. Padalia, Amit Chauhan ABSTRACT Abelmoschus moschatus (Family: Malvaceae), popularly known as ambrette or muskdana, is an important aromatic and medicinal plant of India. The plant is widely cultivated in tropical countries for their musk-scented seeds useful in perfumery and medicine. In this study, hydrodistilled ambrette seed essential oil produced in subtropical region of north India was investigated using gas chromatography-flame ionization detector (GC-FID) and GC-mass spectrometry (GC-MS). A total of 27 constituents, representing 90.4% of the total oil composition were identified. Major constituents of the oil were (2E,6E)-farnesyl acetate (58.0%), (Z)-oxacycloheptadec-8-en-2-one (12.1%), decyl acetate (4.8%), (2Z,6E)-farnesyl acetate (3.5%), (Z)-oxacyclopentadec-6-en-2-one (2.4%), dodecyl acetate (2.4%) and (2E,6Z)-farnesol (2.0%). Ambrettolide and its homologues, responsible for the characteristic musk-like odour, constitute 15.8% of oil composition. Keywords: Abelmoschus moschatus, Malvaceae, ambrette seed, essential oil, (2E,6E)-farnesyl acetate 1. Introduction Abelmoschus moschatus Medik. (syn. Hibiscus abelmoschus (L.), commonly known as ambrette, is native to India (1). It is cultivated in tropical regions of Asia, Africa and South America for their seeds. The seeds have been used as tonic, stimulant, carminative, diuretic, demulcent, and for stomachic property (2). The essential oil obtained by steam-distillation of ambrette seeds is a valuable material known for a rich, sweet, floral-musky, distinctly wine-like or brandy-like odor, which finds application in flavour and fragrance formulations (3). Moreover, the seed essential oil is used as anti-inflammatory, analgesic and antispasmodic drug. It is indicated against cramps and bowel disorders and also useful in the itching caused by insect bites. The leaves and the fruits of the plant are consumed in soups and the seeds are used as a spice (4). In addition to this, A. moschatus shows good antioxidant, antiproliferative and antimicrobial activities (5). The plant has been classified as â€Å"an herb of undefined safety† by the Food and Drug Administration (FDA), and the extracts are classified as generally recognized as safe (GRAS) for their use in baked foods, candies, and alcoholic beverages (6). The chemical composition of essential oil and extracts of ambrette seed have been reported from different countries (7-16). The ambrette seed oil has a much smoother odor than synthetic musk compounds, and the major compounds responsible for the characteristic musky odor include ambrettolide: (Z)-7-hexadecen-16-olide and (Z)-5-tetradecen-14-olide (17). Despite a long history of uses in traditional medicines and in perfumery, information on A. moschatus from subtropical region of India is meager. Therefore, in this study, volatile oil composition of the ambrette seed grown in north India (subtropical condition) has been investigated. 2. Experimental 2.1. Plant material and isolation of essential oil The ambrette seeds were collected from experimental field of CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Pantnagar (Uttarakhand) in the month of December (2009–2011). The experimental site is located between coordinates 29.02 °N, 79.31 °E and an altitude of 243 m in foothills of north India. Isolation of the essential oil from ambrette seeds was carried out by hydrodistillation in a Clevenger’s type apparatus for 5 hours. Isolated oil was dried over anhydrous Na2SO4 and stored at 4 °C until further analyses. 2.2. GC and GC-MS analyses GC analysis of the essential oil was carried out on a Nucon gas chromatograph model 5765 equipped with DB-5 capillary column (30 m Ãâ€" 0.25 mm internal diameter, film thickness 0.25  µm) and flame ionization detector (FID). The oven column temperature ranged from 60–230  °C, programmed at 3  °C/min, using H2 as carrier gas at 1.0 mL/min, a split ratio of 1:35, an injection size of 0.03  µL neat, and injector and detector temperatures were 220  °C and 230  °C, respectively for Nucon gas chromatograph model 5765. GC/MS analysis of the essential oil sample was carried out on a Clarus 680 GC interfaced with a Clarus SQ 8C mass spectrometer of PerkinElmer fitted with Elite-5 MS fused-silica capillary column (30 m Ãâ€" 0.25 mm i.d., film thickness 0.25  µm). The oven temperature program was from 60–240  °C, at 3  °C/min, and programmed to 270  °C at 5  °C /min; injector temperature was 250  °C; transfer line and source temperatures were 220  °C; i njection size 0.03  µL neat; split ratio 1:50; carrier gas He at 1.0 mL/min; ionization energy 70 eV; mass scan range 40-450 amu. Characterization was achieved on the basis of retention index (RI, determined using a homologous series of n-alkanes, C8-C30 hydrocarbons), mass spectra library search (NIST/EPA/NIH version 2.1 and Wiley registry of mass spectral data 7th edition) and by comparing the observed RI and mass spectral data with the literature (18,19). The relative amounts of individual components were calculated based on the relative % peak areas (FID response), without using a correction factor. 2.3. Statistical analysis To compare of the examined essential oil composition of ambrette seed from subtropics with the reported compositions from other regions, seven samples (1: present study and 2-7: other regions) (8,9,11,13,14) were treated as operational taxonomic units. The percentage of nine major components, representing composition up to 82.8-89.0% of ambrette essential oil (decyl acetate, dodecyl acetate, (E)-ÃŽ ²-farnesene, (Z)-oxacyclopentadec-6-en-2-one, (2Z,6E)-farnesyl acetate, (2E,6E)-farnesyl acetate, (2E,6E)-farnesol, (Z)-oxacycloheptadec-8-en-2-one, and (E)-2,3-dihydrofarnesyl acetate) were used to determine the chemical relationship among the different essential oil samples by hierarchical cluster analysis using the average method (20). This software computes the hierarchical clustering of a multivariate dataset based on dissimilarities. The derived dendrogram depicts the grouping of chemical compositions as per their chemical constituents. 3. Results and discussion The essential oil yield and chemical composition of ambrette seeds observed in subtropics, north India is presented in Table 1. The seeds gave 0.12  ± 0.01% (v/w) of essential oil on hydrodistillation. However, essential oil yield was 0.15–0.20% in ambrette seeds under eastern Indian conditions (12). The resulting essential oil was analysed using GC-FID and GC-MS techniques. Altogether, 27 constituents, representing 90.4% of the total oil composition were identified. Major constituents of the oil were (2E,6E)-farnesyl acetate (58.0%), (Z)-oxacycloheptadec-8-en-2-one (12.1%), decyl acetate (4.8%), (2Z,6E)-farnesyl acetate (3.5%), (Z)-oxacyclopentadec-6-en-2-one (2.4%), dodecyl acetate (2.4%), (2E,6Z)-farnesol (2.0%), (Z)-oxacyclononadec-10-en-2-one (1.3%) and (E)-nerolidol (0.7%). The essential oil composition of ambrette seed has been investigated earlier from different countries and mainly five types of compositions are described. Garnero and Buil (1978) identified (2E,6E)-farnesol (39.0%) and (E,E)-farnesyl acetate (35.4%) as the major constituents of ambrette seed oil (13). Dung et al (1999) reported two different compositions, viz. (E)-2,3-dihydrofarnesyl acetate (67.3%) type, and (E,E)-farnesyl acetate (35.5%) and (E)-2,3-dihydrofarnesyl acetate (32.9%) type for ambrette seed oil from Vietnamese (14). However, ambrette seed oils from Ecuador and China are reported to have (E,E)-farnesyl acetate (59.1% and 64.22%) and (Z)-oxacycloheptadec-8-en-2-one (7.8% and 14.9%) as major constituents (8,9). According to an earlier study from Odisha (eastern India), the main constituents of ambrette seed oil were (E,E)-farnesyl acetate (47.6%), (E)-ÃŽ ²-farnesene (9.6%) and (Z)-oxacycloheptadec-8-en-2-one (9.0%) (11). Moreover, to compare the examined essential oil com position with earlier reported compositions, the contents (%) of nine major components of different oils were subjected to the hierarchical cluster analysis. The derived dendrogram clearly demonstrate dissimilarity based on the percentages of the constituents present among the different compositions (Figure 1). Thus, composition of the examined oil from subtropical northern India was closer to the oil composition reported from Ecuador (8). However, it was rather different from China (9) and eastern Indian (11) ambrette seed oils due to the content (%) of other constituents, viz. (E)-ÃŽ ²-farnesene and decyl acetate. 4. Conclusions In conclusions, the chemical composition of ambrette seed oil produced in subtropics was rich in (E,E)-farnesyl acetate (58.0%), and ambrettolide and its homologues (15.8%). The ambrette seed oil has a promising value for fragrance and fixative purposes. Based on the results of this study, it can be said that ambrette can also produced good quality essential oil in the subtropical conditions of north India. Acknowledgements Council of Scientific and Industrial Research (CSIR), New Delhi is thankfully acknowledged for the financial support to carrying out the work (Project: BSC0203). Authors are also thankful to the Director, CSIR-Central Institute of Medicinal and Aromatic Plants for encouragement and the Central Chemical Facility (CSIR-CIMAP) for providing facility for GC and GC/MS analyses. References Anonymous, The wealth of India: Raw materials; National Institute of Science Communication, Council of Scientific and Industrial Research: New Delhi, Vol. 5, pp 75-77 (1959). R. Sharma and A. Shahzad, Thidiazuran (TDZ) induced regeneration from cotyledonary node explant of Abelmoschus moschatus Medik. L. (A valuable medicinal plant). World J. Agric. Sci., 4(4), 449-452 (2008). S. Arctander, Perfume and flavor materials of natural origin; Arctander: Elizabeth, NJ, pp 58-60 (1960). De La Ripelle, H. F. (2006). Les hiscus, tradition et modernite. Phytotherapie, 3,136–144. M.Z. Gul, L.M. Bhakshu, F. Ahmad, A.K. Kondapi, I.A. Qureshi and I.A. Ghazi, Evaluation of Abelmoschus moschatus extracts for antioxidant, free radical scavenging, antimicrobial and antiproliferative activities using in vitro assays. BMC Complement. Altern. Med., 11(64), 1-12 (2011). J.A. Duke, Handbook of Medicinal Herbs. CRC Press, Boca Raton Florida (1985). J.P. Buil, R. Laurent, J.P. Fournol, D. Joulain and P.Y. Hardy, Composition chimique de lhuile essentielle de graine dambrette. Parfums Cosmetiques Aromes, 10, 95-96 (1989). L. Cravo, F. Perineau, A. Gaset and J.M. Bessiere, Study of the chemical composition of the essential oil, oleoresin and its volatile product obtained from Ambrette (A. moschatus Moench) Seeds. Flav. Fragr. J., 7, 65-67 (1992). Y.J. Tang, T.S. Zhou, J.K. Ding and H.D. Sun, The chemical constituents of the essential oil from Ambrette seeds. Acta Bot. Yunnan, 12(1), 113-114 (1990). D.K. Mishra and S.N. Naik, Cultivation and processing of Abelmoschus moschatus. J. Med. Arom. Plant Sci., 22, 624-628 (2000). P.K. Rout, Y.R. Rao, K.S. Jena, D. Sahoo and B.C. Mishra, Extraction and composition of essential oil of ambrette (Abelmoschus moschatus) seeds. J. Essent. Oil Res., 16, 35-37 (2004). P. K. Rout, K. C. Barik, K. S. Jena, D.Sahoo, and Y. R. Rao. 2002. A novel process for the extraction of fragrance components from ambrette (Hibiscus abelmoschus L.) seeds. Organic Process Research Development 2002, 6, 401-404. J. Garnero and P. Buil, Contribution a letude de la composition cbimique de lbuile essentielle concrete de graines d ambrette. Rivista Ital. EPPOS, 60, 606-612 (1978). N.X. Dung, P.V. Khien, D.D. Nhuan, T.M. Hoi, N.K. Ban, P.A. Leclercq, A. Muselli, A. Bighelli and J. Casanova, Composition of the seed oil of Hibiscus abelmoschus L. (Malvaceae) growing in Vietnam. J. Essent. Oil Res., 11(4), 447-452 (1999). T. Bernard, F. Perineau, R. Bravo, M. Delmas and A. Gaset, Extraction des builes essentielles Etude de faisabilite conduite sur l’ambrette. Parfums. Cosmet. Aromes, 84, 77-84 (1988). Molfetta I, Ceccarini L, Macchia M, Flamini G, Cioni PL. 2013. Abelmoschus esculentus (L.) Moench. and Abelmoschus moschatus Medik: Seeds production and analysis of the volatile compounds. Food Chemistry 141, 34–40. B. Maurer and A. Grieder, (Z)-5-tetradecen-14-olide, a new macrocyclic lactone, and two unsaturated straight chain acetates from ambrette seed absolute. Helv. Chim. Acta, 60, 1155-1160 (1977). R.P. Adams, Identification of essential oil components by gas chromatography /mass spectrometry. Allured Publishing Corp., Carol Stream, Illinois, USA (2007). http://www.pherobase.com/database/kovats/kovats-detail-Z5-12Ac.php Wessa, P. (2013). Hierarchical clustering (v1.0.3) in free statistics software (v1.1.23-r7), office for research development and education. URL: http://www.wessa.net/ Table 1: Chemical composition of ambrette (Abelmoschus moschatus Medik.) seed essential oil from north India S. no. Compounda RIb RIc Content (%)d S. no. Compounda RIb RIc Content (%)d 1 ÃŽ ±-Pinene 933 932 0.1  ± 0.09 15 Decyl propanoate 1502 1501 0.2  ± 0.06 2 ÃŽ ²-Pinene 972 974 t 16 (E)-Nerolidol 1560 1562 0.7  ± 0.06 3 6-Methyl-5-hepten-2-one 978 981 0.1  ± 0.04 17 (Z)-5-Dodecenyl acetate 1588 1592* 0.5  ± 0.06 4 ÃŽ ±-Terpinene 1014 1014 t 18 Dodecyl acetate 1609 1607 2.4  ± 0.25 5 p-Cymene 1022 1020 0.2  ± 0.25 19 (2Z,6Z)-Farnesol 1696 1698 0.1  ± 0.00 6 Limonene 1026 1024 0.2  ± 0.16 20 (2E,6Z)-Farnesol 1713 1714 2.0  ± 0.93 7 1,8-Cineole 1028 1026 0.2  ± 0.21 21 (Z)-Oxacyclopentadec-6-en-2-one†  1719 2.4  ± 2.43 8 Linalool 1100 1095 0.4  ± 0.46 22 (2Z,6E)-Farnesyl acetate 1822 1821 3.5  ± 1.15 9 Camphor 1146 1141 t 23 (2E,6E)-Farnesyl acetate 1850 1845 58.0  ± 3.13 10 n-Decanol 1270 1266 0.3  ± 0.35 24 (2E,6E)-Farnesyl propanoate 1919 0.4  ± 0.17 11 Undecanal 1304 1305 t 25 (Z)-Oxacycloheptadec-8-en-2-one † Ã¢â‚¬   1928 1929 12.1  ± 4.88 12 Decyl acetate 1407 1407 4.8  ± 0.90 26 (Z)-Oxacyclononadec-10-en-2-one 2128 1.3  ± 0.79 13 (E)-ÃŽ ²-Farnesene 1458 1454 0.2  ± 0.33 27 Linoleic acid 2129 2132 t 14 10-Undecenol acetate 1499 1498 0.1  ± 0.10 Total identified (%) 90.4  ± 6.25 aMode of identification: retention index (RI), mass spectral data (GC–MS); RIb: Experimental Retention Index (relative to n-alkane); RIc: Retention Index from literature (18); dMean ( ± standard deviation) of three samples; † also known as (Z)-5-tetradecen-14-olide; † Ã¢â‚¬  also known as (Z)-7-hexadecen-16-olide (= musk ambrette); *KI: Kovat Index (19). Figure 1: Hierarchical cluster analysis of the essential oil compositions of ambrette (Abelmoschus moschatus Medik.) seed. 1: present study [(2E,6E)-farnesyl acetate (58.0%), (Z)-oxacycloheptadec-8-en-2-one (12.1%)]; 2: [(2E,6E)-farnesol (39.0%), (2E,6E)-farnesyl acetate (35.4%)] (Garnero and Buil, 1978); 3: China [(2E,6E)-farnesyl acetate (64.22%), (Z)-oxacycloheptadec-8-en-2-one (14.96%)] (Tang et al., 1990); 4: Ecuador [(2E,6E)-farnesyl acetate (59.1%), (Z)-oxacycloheptadec-8-en-2-one (7.8%)] (Cravo et al., 1992); 5: Vietnam [(E)-2,3-dihydrofarnesyl acetate (67.3%), (2E,6E)-farnesyl acetate (14.9%)] (Dung et al., 1999); 6: Vietnam [(2E,6E)-farnesyl acetate (35.5%), (E)-2,3-dihydrofarnesyl acetate (32.9%)] (Dung et al., 1999); 7: Eastern India [(2E,6E)-farnesyl acetate (47.6%), (E)-ÃŽ ²-farnesene (9.6%)] (Rout et al., 2004). 1

Free Essay: Symbols and Symbolism in White Fang :: White Fang Essays

Symbolism in White Fang "Classic" - a word misunderstood by many people around the world, mostly those of a younger generation. It is surprising how many people believe that the word "classic" means "old" or "boring". This is just not the case. In actual fact, the label "classic" given to books means "of the highest quality," or "of enduring interest and value." Books with this label are the best there is. Every word is carefully thought out and made interesting for the reader. Symbolism, meaning and detail are all applied effectively to keep the book an on-going page-turner. Such a fine example of this is Jack London’s White Fang. A very wonderful tool to an author is the use of symbols within a story. One of the more common symbols throughout short stories and novels ultimately refers to the bible and religious history. In most, if not all stories have the relationship between good and evil – heaven and hell. Whether implied or not by Jack London, White Fang is full of many interesting biblical symbols. The character Beauty Smith, for instance very simply put symbolizes Satan. This man, this creature so vile as to subdue yet another victim (White Fang) into his ever-growing underground slavery prison camps. The greed for money and profit is the only need for this "prison camp"; the dog-fighting gambling is their prison cell. A comparison between the bulldog Cherokee and death itself can be made. Once death has you, there is no way of escaping. When Cherokee had White Fang gripped between his jaws, "There was no escaping that grip. It was like Fate itself, and was inexorable," (London 139). Surely enoug h, God (Weedon Scott) came along and saved White Fang from the grips of evil. The cold-heartedness of evil can be overcome with the heat and light of good. The care and kindness of such like Weedon Scott for all existing creatures alike. Many other symbols deep within this novel lay rest assured, but it is hard to catch them all in such a detailed book as this. With a closer inspection and a deep analysis of a novel, many small but nonetheless important meaningful things can be revealed. London has managed to intricately design a perfect novel full of deep meaning and symbols that can only be done in a short story. But a novel, with so many pages and pages of detailed work, it is so hard to keep up with all the things that lay undiscovered within.

vietnam war :: essays research papers

Choices Tim O’Brien was drafted to the Vietnam War. He didn’t want to go to the war. So he went to the northern woods in the northern Minnesota. He had to make a choice whether to go to the war or not to go to the war. After spending six days with guy Elroy he decides to go. Tim O’Brien went to the war for the wrong reasons. He didn’t even think that there should be a war. He saw no reason at all why they should be fighting. He says â€Å"I was drafted to a war I hated... [I was] politically naive, but even so the American war in Vietnam seemed to me wrong. Certain blood shed for uncertain reason. â€Å"He hated this war and had so many questions about it. he says â€Å" It was my view then, and still is that you don’t make a war without knowing why.† he didn’t believe in it and didn’t know why we were fighting so why should he go to a war. He didn’t want to go to war. He wasn’t made for war. He even says , â€Å"I was no solider. I hated dirt and tents and mosquitoes. The sight of blood made me queasy.......† Now come on he didn’t even like anything to do with outdoors what good would he even do for our country. He minds well stay home and go to school. He was too young and had too much to lose. He even got a scholarship to a good school. â€Å"... I had the world dicked - Phi Beta Kappa and Summa Cum Laude and president of the student body and a full ride scholarship for grad studies at Harvard.† It must have been a mistake cause I was too young. â€Å" a month after graduating from Macalester college. I was drafted to fight a war I hated. I was twenty-one years old, young, yes.† Way too young to go to war. He was too embarrassed not to go. He was afraid to be laughed out of town. â€Å" ... and it was easy to imagine people sitting around a table down at the old Gobbler Cafe on Mainstreet, coffee cups poised, the conversation slowly zeroing in on the young O’Brien kid, how the damned sissy had taken off for Cananda.† Now think about those reasons aren’t very good for going to fight for our country.

Biology Mitosis Lab

Mitosis and Meiosis Cell Division Lab Part 1-MITOSIS summary: In this experiment first the stages of an onion cell undergoing mitosis are going to be observed and every stage is going to be detected and drawn on paper. A brief description to what is going on should be attached to the pictures. This is important to understand the basics of cell division which is necessary growth,repair and asexual reproduction. Second the number of cells undergoing each phase is going to be counted to figure out in which phase the cell remains the most.If interphase is the stage in which the cell grows and prepares for cell division then the number of cells undergoing interphase will be the most. After cells were counted it came out that indeed the number of cells in interphase is the most followed by prophase, metaphase=anaphase and telophase. This makes us come to the conclusion that the longest phase for a cell is interphase in which the cell grows and gets ready to divide. The second longest in pr ophase in which the chromatin fibers start to form chromosomes. The other phases which follow are very short and quick. Introduction:Mitosis is the division of the nucleus,providing equal amounts of nuclear material to the daughter cells,in eukaryotes. Equal amounts of chromosomes are provided for the forming daughter cells by replicating the DNA and chromosomes before the division. Mitosis occurs in somatic cells and produces 2 daughter cells. The whole process of mitosis consists of 5 stages. 1-Interphase:is the stage in which the cell rests and gets ready for division. Consists of 3 parts. -G1:number of organelles double,size increases. At the end of this phase is a G1 checkpoint which controls is the cell is ready for division or not. S:chromosomes are duplicated. -G2:special proteins and enzymes for cell division are synthesized. 2-Prophase:Centrioles move to opposite poles of the cell. Form spindle fibers which’ll become the microtubules holding the centromere. Chromoso mes become visible as long threads and become shorter and thicker. Each chromosome joins another one forming sister chromatids attached in the middle by a centromere. Nuclear membrane dissolves. 3-Metaphase:spindle fibers from the centrioles attach to the chromosomes at the kinetochore lining the chromosomes in the center of the cell. -Anaphase: The centromeres divide and the sister chromatids separate.The spindle fibers full the chromosomes to different poles of the cell. 5-Telophase: When chromosomes have reached opposite poles a nuclear membrane forms around them. Chromosomes then untwist and stretch becoming invisible again. Spindle fibers break down. At the end of mitosis cytokinesis takes place which is the formation of a cleaved membrane between the two new formed cells to separate them. Materials: -onion root tip cells -microscope Procedure: 1-Observe the onion root tips under the microscope first at 100X and then at 400X. 2-Draw each phase of mitosis you see. -Write a brief description of what you observe in each phase under the picture. 4-Under 400X count the number of cells undergoing different phases. Record data. 5-Calculate the total number of cells. 6-Calculate the percent amount of time the cells spend in each phase. Analysis: The data we collected shows that 52% of the cells were in stage interphase. This indicates that more than the half of the cells are recovering from their previous division and preparing to divide again. 40% of the cells were in the second phase prophase while the other phases had a cell percentage number of ~2%. This denotes that prophase is the second longest phase.This can be because it takes a longer time to duplicate the chromosomes than simply lining them up and pulling them apart. Conclusion: Our hypothesis that if interphase is the resting phase then it’ll be the longest was proven true by the data we got from the onion root tips. The number of cells undergoing interphase had the highest number supporting ou r hypothesis. The complement of interphase is very important for organisms. If interphase isn’t completed before division or if something goes wrong during it many problems could occur like mutations or other things which would affect the proper functioning of the organism.The possibility of errors emerging in this experiment is very low. The only errors could be caused if something was wrong with the microscopes lens or objective. Another thing to be researched could be what factors effect mitosis and if the same process would still occur in a different environment. Part 2-MEIOSIS In this part the concept of meiosis which is the essential of sexual reproduction is going to be observed by using Sondaria fimicola a certain type of mushroom. The colors of the ascospores before and after meiosis are going to be observed to see whether there is crossing over or not.If meiosis is occurring then the newly formed sequences will look different then the ones to begin with. Observe the S. fimicola undergoing meiosis. Look at the ascospores after meiosis and notice the pattern. If the changes are in a 4:4 manner there is no crossing over. If any series of 2 like 2:4:2 or 2:2:2:2 occur it means that crossing over took place. The results we got were composed of different sequences including both patterns with 4’s and 2’s which means that crossing over took place. *Because S. fimicola was not available for the lab,cards with pictures of it undergoing meiosis were used. Introduction:Meiosis is a type of cell division which provides genetic variation by reducing the chromosome number to half and creating haploid cells. Later on a male and female haploid cell will join to form a diploid cell with the right number of chromosomes. Meiosis consists of one DNA replication and two nuclear divisions resulting in 4 daughter cells. The process which provides for genetic variation is crossing over. Crossing over occurs in the early stages when homologous chromosome s move together so that their chromatids form a tetrad. This is called synapsis and allows for the exchange of chromosome sections.In our case the crossing overs will result in different colorings of the ascospores of the S. fimicoli. Materials: -Microscope -S. fimicola meiosis cards Procedure: 1-Study the different phases of meiosis on the cards. 2-Notice the difference between ascospores with sequences of 4’s and 2’s. 3-Count the amount of different sequences present. 4-From the data you gathered calculate the percentage of asci showing crossover. Analysis: Out of a total from 26 sequences only 6 were made up of 4‘s while 20 were composed of different structures of 2‘s. This tells us that 77% of the asci showed crossing over while 23% did not.Conclusion: Our hypothesis that if meiosis is present the new formed asci will have different colors was supported by the outcome of our observations. The fact that different sequences of 2’s emerged from the first pattern of 4’s is prove that crossing over took place. Genetic variation is very important because it is a way of natural selection. Beneficial and strong genes are selected while the others are eliminated. (Survival of the fittest) For future research it could be researched if the crossing over happens randomly or whether there is some order to it and if could be controlled to get a 100% functioning ,ideal organism.

European History World War I Essay

The focal point of this essay is to evaluate and analyze the position of female nurses in World War I. The paper overall could be enumerated about the impact of World War I on the home front to the countries involving especially women. For the purpose references would be taken from predominantly four books. The first one is It’s a long way to Tipperary: British and Irish Nurses in the Great War by Yvonne McEwen and the second one used in this paper is Nurses at the Front: Writing the Wounds of the Great War by Margaret R.  Higonnet. The third and fourth book used for this paper would be The woman of Royaumount: A Scottish women’s hospital on the western front by Eileen Crofton and War and Gender: How Gender Shapes the War System and Vice Versa by Joshua S. Goldstein. Apart from all these an article by Margaret H. Darrow would also be used that was published in the American Historical Review Vol. 101, No 1 in February 1996 titled French Volunteer Nursing and the Myth of War Experience in WWI. All these texts would be valuable resources for determining the true position of women during the First World War. Yvonne McEwen book deals with the characters that are often overlooked while dealing with the greater perspective of a vast incident like the First World War. These are the people who practically work behind the scene but make tremendous contribution to the cause but more often than not are not mentioned by academicians. Such characters are the female nurses of the First World War. The author presents a testimony to all those nurses of the First World War who proved to be people with astonishing courage and ability to bear hardship. It is not only the soldiers of the First World War who showed all these qualities but the author mentions that it is the female nurses who went unsung after proving themselves to be no less dedicated to their country and service than the soldiers. The sacrifices of these people are hardly written down and thus the author is instrumental in presenting to us the untold stories of the female nurses and their position in the First World War. At the same time the author mentions the other side of this profession and service where the female nurses is mobilized in a large number to compete among rival nursing service agencies. The net result often proved to be uncalled for. This is because though there was a huge demand of female nurses in the First World War it was desirable that the female nurses participating and volunteering to serve are trained adequately. It is almost a certainty that due to this mobilization in mass numbers the quality of the female nurses was diminishing. In the same context it should also be said that this lack of practicable knowledge was often covered up by the will to serve and work extremely hard. However, the author indicates several accounts that show the humane aspects of the First World War female nurses and their position in the social order as they were viewed by the soldiers as saviors though in most cases they were only comforters at the most. But in a time of mass destruction and agony this was more than sufficient for a dying young soldier. The author narrates this aspect of the female nurses with great affection and indulgence. (McEwen, 2006) The second text by Higonnet reveals more of personal account of the two most famous nurses from the United States, Mary Borden and Ellen N. La Motte. Their personal views of the First World War, as brought for forward by the author between the same covers, shows the inner world of the female nurses during the period of the war. These are women who saw the war extremely closely and thus narrates the extremely difficult practice of military medicine under ruthless conditions. Their accounts are often haunting and both reflects the dilemma of treatment where the patient for whom the nurses work so hard would ultimately return to the war zone either to be killed or to kill. At this point the text becomes very touching and humane but at the same time shows us the true position of the female nurses during the First World War. It appears that the female nurses were, in a sense, just comforting medium or toll provided by the government to heal their killing machines. It is true that this cost of war is often difficult to digest with its harsh realities of death and decay of the human mind where most of the humane principals are drained off under unbearable circumstances. But the nurses depict their accounts not only from the point of view of observers but from a point where it appears that they are actually cursing their need of healing the blood river. There is a certain point of motherhood or motherly feeling involved in their accounts. Their text not only becomes extremely important for determining the true position of the nurses during the First World War period but also presents us with humane narratives that are inspirational, thoughtful and moving. (Higonnet, 2001) Eileen Crofton’s The Women of Royaumont, A Scottish Women’s Hospital on the Western Front is a story of a hospital in Royaumont which was within few miles from the western front during the First World War. This story also tells the account of Miss Frances Ivens who works as a surgeon in this hospital. Miss Ivens was also responsible for the set up of this fully equipped hospital to serve the wounded soldiers from the front. This is a wonderful story about the personnel of this hospital where death and pain became a regular feature during the First World War period these were the people who never loosed any hope and lead life with hardship and service from 1915 to the end of the war in 1919. Here we find the daily life of the female nurses with their fear and hope and determination. It is a interesting notion to read the parts where they are seen celebrating Christmas or other such festive moods along with their heavy schedule where doctors were allowed on about three hours of sleep due to rush of patients. Here we find the whereabouts of the female nurses with details accounts such a number of patients during a specific period of time in the middle of the war and the total number of treatments along with details of maladies along with their race and religions. The writer makes us aware that these are personnel who worked amidst shells and gun fires and still maintained their high level of professional skills. Here we also find the aspects of humor, like the festivals or games, helped their moral to continue the harsh days of the First World War period. We also come across the diplomatic situation where the management handled the matter with well formulated strategies to survive. Thus this text reveals a huge amount of details that is needed to determine the position of nurses in the First World War period. We can easily understand the high position these women occupied in the minds of the patients but sadly the same was hardly true when it came to bureaucracy and government. If judged from Eileen Crofton’s point of view it was the outsiders who never shared the life of the nurses and failed to pay their due respect. But at the same time it is true that while evaluating the position of the female nurses during the period of the first World War it becomes certain that the elite of the society hardly paid any respects to these brave service providers even though some of the noted female nurse came from this class. However, the main concerns to the nurses were the well being of the soldiers and there they were highly respected and honored. Goldstein’s text presents a different angle to the entire discussion and along with it places a very interesting point of view too. Goldstein aims at the perspective that states that the impact of gender difference and the significance of gender differences are most visible during the period of war. Yet controversial arguments, and the dispersion of erudition across scholastic regulations, have covered understanding of the nature of war and its implementation on the aspects of gender. According to the writer the affect war cause on gender and the gender difference affect the nature of war is mutual and simultaneous. To venture this mode of circumstances the author explores the aspect of war in general throughout the history of human conflict and notes in a lively yet very authoritative manner that almost always women were excluded from direct combat situation. The write even indicates that this has been the general norm and it is applicable for all race and culture. However the author did mention and evaluated the incidents where the women fought in direct battlefield with much success. In the same context the author also mentions the nature of male complexity in the parameters of social behaviors cause mainly due to secretion of testosterone. This part is a very interesting topic as it looks upon the basic aspects of the concepts relating to the construction of femininity and masculinity under the parameters of war and particularly the First World War. To explain the issue the author illustrates the book into seven broad chapters that deals various aspects of war and the subsequent affects on women in general. The first chapter is A Puzzle: The Cross-Cultural Consistency of Gender Roles in War where the homogenous nature of women’s position is discussed in the light of war. The second chapter is named Women Warriors: The Historical Record of Female Combatants where the role of active participation is noted. The third chapter is Bodies: The Biology of Individual Gender where the author looks into the details of the differences between the sexes. The fourth chapter seeks the social position of women and it named Groups: Bonding, Hierarchy, and Social Identity. The fifth chapter deals with the representation of war as a means of construction of male identity and thus it is named Heroes: The Making of Militarized Masculinity. The sixth chapter is named Conquests: Sex, Rape, and Exploitation in Wartime and it looks into the brutal aspects of male dominance during war and thus reveals the detrimental affects that war causes in the ramification of the women. The last chapter concludes the entire scenario and tries to venture into the connection of women and war and thus it is named Reflections: The Mutuality of Gender and War. It should be mentioned that according to Goldstein the First World War included greater participation of women than before predominantly as nurses. However she points out that it is not natural for a human being to kill but during the First World War it was found that women along with men were forced to commit this act and according to the author this was a direct affect of the War. To prove the points the author presents a number of illustrations that includes drawings, graphics, photographs and related materials from numerous scholarly texts that include diverse academic disciplines. This book by Goldstein is a unique approach in the context of content and approach and it could well be stated that it is a fascinating book to read apart from being a book on a distinct issue that reflect much about the position of women during the WWI. (Goldstein, 2001) The article by Margaret H. Darrow titled French Volunteer Nursing and the Myth of War Experience in WWI is a true text to conclude this entire paper. This is because this article emphasizes on the aspects of the First World War and the involvement of women, particularly female nurses in it. Though it predominantly describes the details of women of France it is nevertheless reveals the position of women during the First World War and particularly about the nurses unlike Goldstein who presents the total perspective and the relation between woman and war. Darrow mentions that women were very much involved in the First World War than previous battles but it was mostly indirect in nature. She mentions that the women joined the jobs that were left behind by their men and even took active participation ministry of military affairs but maximum and direct involvement of the women in the First World War was as nurse. The author clearly mentions this and emphasize that the position of the women at this war was almost equivalent and important as that of the male doctors and it could be further stated that a huge amount of inspirations were drawn from the dedication to the service by the female nurse during the First World War. This is the most important point to be mentioned and this is what makes the involving of the female nurses relevant in the context of the First World War. (Darrow, 1996) In conclusion it should be stated that the being a part of a noble profession it was the opportunity for the female nurses of the First World War to gain importance to their community and help substantially to the ultimate cause of the purpose. It is true that they were often treated badly or were not given their dues for their hard works but if we take into consideration the basic position of women in the society or the importance that they enjoyed before the First World War it could be a well placed statement that the First World War provided a respected position for the female nurses in the cantonment and in the society as well.