Thursday, August 22, 2019

Is Prejudice and Discrimination a Myth or a Real Life Situation Essay Example for Free

Is Prejudice and Discrimination a Myth or a Real Life Situation Essay Prejudice is a cultural attitude that rests on negative stereotypes about individuals or groups because of their cultural, religious, racial, or ethnic background. Discrimination is the active denial of desired goals from a category of persons. A category can be based on sex, ethnicity, nationality, religion, language, or class. More recently, disadvantaged groups now also include those based on gender, age, and physical disabilities. Prejudice and discrimination are deeply imbedded at both the individual and societal levels. Attempts to eradicate prejudice and discrimination must thus deal with prevailing beliefs or ideologies, and social structure. Although there is no wide agreement as to the cause of prejudice and discrimination, there is a consensus that they constitute a learned behaviour. The internalization of prejudice starts with parents and, later, teachersthe groups primary in the formation of attitudes within children. The media and social institutions solidify prejudicial attitudes, giving them social legitimacy. In a sense, it is incorrect to speak of eradicating prejudice, since prejudice is learned. At best, one can reduce prejudice and discrimination. Society looks most often to education and legislation to alleviate prejudice and discriminationfor reasons still not clearly known, inter-group contact alone is not enough to reduce prejudice. On one hand, multicultural education, whether direct or indirect, constitute the mainstay of educational efforts to eliminate prejudice. On the other hand, the emphasis on civil rights, enlightened immigration policies, and mandates for quota hiring are the cornerstone of legal approaches to alleviating the effects of prejudice and discrimination. The most overlooked area in resolving the problems of prejudice and discrimination lies in the web of close relationships where genuine feelings of love can be fostered and strengthened. The private sphere may indeed be the last frontier where a solution to the problems of prejudice may have to be found.

Wednesday, August 21, 2019

History Of Cave Painting Cultural Studies Essay

History Of Cave Painting Cultural Studies Essay Nowadays, most people think only abut modern technology, popularity. They never think back to history of the world, how the first civilization emerged, what happened in the ancient time, how the ancient people lived, the way to find food and so on. In ancient time, before people had the writing system like nowadays, they used to draw some record or some action on the wall, especially in the deep cave. (Cave Painting and rock art, 2002, p. 7). Some archeologists have found a lot of cave painting, especially in Europe. The cave paintings have different history, meaning, method to draw those caves painting in order to hunt more animal for food easily. Other people believe that the cave people thought that painting animals on their walls would make animal spirits come to them and bring good fortune. Others believe that the cave paintings sometimes sent messages to other people passing through or living in the cave in the future. (Maggie, Cave Drawing). According to some website article, cave painting is also called cave art, or rock painting. (Cave Painting and rock art, 2002, p. 1). People who saw cave painting, especially the archeologist, can decried the way that ancient people lived, some event in Paleolithic time because most cave paintings were drown during that period. Cave painting is considered as the most important means to show the interaction between the ancient people and the world. (Prehistoric cave art, online article). This term paper will focus on the history of cave painting which will detail the history of most cave painting, the purpose, the method to draw cave painting, the time that cave painting had discovered, and some examples of cave painting that archeologists have found in some countries. There are a lot of cave paintings around the world, but in this term paper, we will include two cave paintings only. The reason that we decided to choose these two cave paintings is that these are the most famous cave p ainting in the world. In addition they have discovered for a long time ago. These two cave paintings are Lascaux which is located in France nowadays and it has become the World Heritage Site since 1979, according to the UNESCO World Heritage Site website. Another one is Altamira which is located in Spain. In the case study part, we will detail about these two cave paintings information such as the meaning, method for each painting, and discovery and who has founded those cave paintings. Historical of Cave painting Purposes of Cave painting Perhaps over thirty thousand period years long ago, in the Western of Europe, as in duration of the Paleolithic period or Old Stone Age period, the living standard of the prehistoric humans considered as Cro-Magnons ¾ automatically modern humans. Moreover, much of Europe in that period was ruled the village in that time by small groups of travelling hunter hunting on the nomadic of many kinds of animal. In those, we have such as reindeer, cattle, bison, horses, mammoth, and other animals that those of animal bodies gave the hunter food, clothing, and so on for making tools and weapons. At that time, humans had not learned the way to write, so they tried to note the vital parts of their daily lives by detailed on the walls of deep caves and communicated through the cave paintings. Thus, the prehistoric hunters also created the cave painting. We really know that most of the paintings that they painted were of hunting scenes, a picture of vultures setting about human corpses, even an elementary landscape, and animals that were so very vital for their physical well-being. Despite, we have a few kinds of painting that have either in etchings or in a painting of body of human figure, just like the painting that described about the scene in Lascaux of the bull and the horse. In term of creating that painting, the purpose of the cave painting is uncertain like the other paintings that were painted afterward, however, some evidence indicates that they were not simply for the decoration. Moreover, those cave paintings may have been part of magical rites, hunting rituals, or attempt to mark the events during various seasons, especially religion and magic are the context, but no one knows the precise motive (History of painting, 2012, p.1). In those, one theory suggests that the prehistoric hunters accepted basic religious beliefs by serving a magical purpose for hunting because for they wanted to increase the number of wild animals available to hunt, or that magic is to aid the hunters in the chase, especially to help the Shaman into the state of trance which is necessary for his ceremonial work. And then assumption may be endless, but the attractiveness of this early human art is everlasting. Another theory is that cave paintings ¾ especially the more realistic ones  ¾ may purely be descriptions of the surrounding world. More than that, it was probably the cave man wanted to decorate the cave and chose animals because they were very important to their existence. Furthermore, one more theory suggests that, prehistoric man could have used the painting of animals on the wall of caves to record their hunting journeys (Cave paintings, 2004, p. 2). Period of Discovery On 1870, Don Marcelino and his daughter were the founders of the first cave paintings which located in Altamira, Spain which painting are mostly base on bison. Painting that they found has been discovered that it was painted by the Magdalenian people who lived between 16,000-9,000 BC which mean that it is 11,000-19,000 years before now. But until 1902, these cave paintings could be accepted as a fact by art historians and anthropologists (Johnson, P. 2012). After the research of archeologists and scientists, they believe that cave painting had occurred between 10,000-4,000 BC; they also found out that cave painting reveals in all continents around the world but is just in different style. For example, hunting, gathering food and other diary activities or real situation often reveal in Europe and Africas cave paintings, in contrast, Australia and Americas cave paintings are seem to be more abstract and symbolic that we cant easy to understand it. Till the end of twenty century, in Eur ope, there were 277 of cave painting which is agreed by the art historians and anthropologist, 142 is located in France, Spain has 108, Italy has 21, Portugal, Germany and The Balkans are account of 2 for each. (Johnson, P. 2012). The worlds oldest cave painting which were made in 40800 years ago by anatomically modern human (prehistory human who is our modern humans ancestor and lived in 41500 years ago) or cave dweller (prehistory human who live in a cave or under the overhanging rocks area of the very steep site of the mountain, but have disappeared) is found in the cave called El Castillo in Spain in 2012 ( Ling, Q. 2012). Before theyve found out the cave in Spain, Frances Chauvet cave paintings was made in 37000 years ago, but it is still a little late than Spains. Method of Cave Painting D:LNDocumentsDocumentsIFLDISY2S1IS 202(World History)Cave paintingmethod.jpg Cave painting method (www.katiebetter.wordpress.com/tag/concept) People around the world had their own culture for a long time. In their societies, they gathered fruits and hunted animal for their daily lives. When they hunted big or mean animals, they always showed their villagers in order to state that they were powerful and brave. The animals that they hunted may have been one of their beliefs, then they celebrated some ceremonies to gain their reputation in their villages. Time flied, so people got older and older. To encourage their next generation, they started painting what they had found and told what an event happened. They started painting since the Paleolithic Era, 35,000 to 12,000 years ago Purpose for Cave Paintings ( online article). The cave paintings were found throughout the world, especially in Europe. Before Wire ( online article). The most basic method of making paint is to mix a pigment with a liquid, so that when the liquid dries the color is left behind. This was a method that most ancient people used to make cave painting a nd the main material for them to do also. Ancient peoples decorated walls of protected caves with paint made from dirt or charcoal mixed with spit or animal fat. In cave paintings, the pigments stuck to the wall partially because the pigment became trapped in the porous wall, and partially because the binding media (the spit or fat) dried and adhered the pigment to the wall. Painting Technique( online article). Only these materials, they could not make a cave painting because there were some materials were required such as cave, animals bone, and some material that ancient people used to product pigment. Shoulder and other bones of large animals, stained with color, have been discovered in the caves and presumed to have been used as mortars for pigment grinding. The pigment was made into a paste with various binders, including water, vegetable juices, urine, animal fat, bone marrow, blood, and albumen. These were all kinds of material were needed. Case Study Lascaux Cave Painting D:LNDocumentsDocumentsIFLDISY2S1IS 202(World History)Cave paintinglascaux1.jpg Lascaux cave painting (www.culturedart.blogspot.com/2010/10/paleolithic-animal-paintings-in-caves.html) Lascaux is one of the many other famous cave paintings in France, as well as over the world. Lascaux is also the famous cave painting in Paleolithic. Lascaux is one of the World Heritage Site, according to UNESCO website, Lascaux was added to the World Heritage Site in 1979. (World Heritage Site list of UNESCO). There are many figures in Lascaux. Lascaux was founded in 1940, then in 1948, Lascaux was opened to all public visitor without preservation idea, so there were some problems that caused by those activities. In 1963, France government decided to close this cave painting from public visiting by a large number of visitors every year. (The Cave of Lascaux, online article). Lascaux has been harmed by the air conditioner system, light system and the amount of visitors since 2000, and in 2006, the cave situation became worse, and then in 2008, the France authorities decided to close for 3 months from all people, even scientists or archeologists. There is only one person who can go i n to Lascaux for 20 minutes only per week to check the climate and situation. Meaning of Lascaux Since there are many figures in Lascaux, the archeologists cant set the purpose or the meaning of Lascaux cave painting. (Anne, T.L., 2000). Some painting purposes of Lascaux were just for fun of putting some handprint on the wall in order to hunt more animals. Many cave painting are come with religious purposes, or with a kind of animism that the animals spirits killed in the hunt, or with a purpose of success hunt. Even there are a lot of figures, the archeologists can divided all painting into 3 categories such as animals, human figures and abstract sign. (Aujoulat, 2003). The famous paintings in Lascaux are Red cow and Fist Chinese horse, and another one is Great Black Bull. This Great Black Bull was appeared in motion. Discovery Lascaux cave painting was discovered in 12 September, 1940 by Marcel who was just a little boy at that time. Lascaux was located in Vezere Valley, France. Lascaux was estimated 17,000 years old. There is a fact about this discovery. On 8 September, 1940, Macel and his friends went on the treasure hunt, because they heard that there was a secret underground way that can led people to the one hidden treasure. On the 12 September, those 4 boys went to explore that secret way. Finally, they really got in to that secret underground treasure. What made them amazed were the herds of housed, deer, and oxen stampeded across the curving of the cave wall. The colorful of those wall painting also made them leap off the wall, then found many other rooms where were full of wall painting. First, those 4 boys promised each other to keep that discovery as secret. But since it was a huge secret to keep promise, they told their teacher who contacted with an expertise. That expertise said that maybe the se 4 boys were the first modern people who see these arts. In these cave, there are more than 1500 picture, and most of the pictures are animals which were those that the early Lascaux people had hunted, (The discovery of the Lascaux Cave Painting). Method Lascaux had techniques of painting or drawing that can make Lascaux still exist till today. In ancient time, people didnt have such modern equipment like nowadays. Artists in Paleolithic used brushes which made from human or animals hair or from plant steam to paint wall painting. They also used pieces of organic pigment like crayons to draw on the rock. Artists used animal fur, vegetable fiber and leather for dabbing and sponging the application. Here are some tools that were used to draw cave painting. First tool is pigment. Lascaux painter had black and a range of warm brown, ochers, yellow and red. There was limited of these materials. The black paint was made by oxidized metallic element; red color was made from iron oxide or rust; reddish-brown color was made of types of ferrous oxide called Hematite. Second tool was a tool which was related to crude crayon to draw on the smooth wall and the pigment was mixed with plant juices and animals fat. Third tool is miscellaneous tool. Artist use animal shoulder bones and grind-stones to draw the picture too. They also used beam and ladders to draw on the high wall painting, and they also littered lamps in the cave floor because they were in a deep cave where lack of light sources was. (Jack, M. 2009). Conclusion D:LNDocumentsDocumentsIFLDISY2S1IS 202(World History)Cave paintingentrance to Lascaux 1940(ancient-wisdom.co.uk).jpgD:LNDocumentsDocumentsIFLDISY2S1IS 202(World History)Cave paintingsquidoo,com.jpg Entrance to Lascaux 1940(ancient-wisdom.co.uk) squidoo.com D:LNDocumentsDocumentsIFLDISY2S1IS 202(World History)Cave paintingsquidoo.com Bison painted.jpg squidoo.com Bison painted

Tuesday, August 20, 2019

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

Monday, August 19, 2019

Guidance Counseling and Parental Involvement :: essays papers

Guidance Counseling and Parental Involvement The elementary school counseling and guidance program is part of the total school program and complements learning in the classroom. It is child-centered, preventive, and developmental. The program encourages students’ social, emotional, and personal growth at each stage of their development. The purpose of counseling with students, parents, and teachers is to help students maximize their potential. The elementary school counselor also conducts guidance lessons; consults with parents, teachers, and other professionals; and coordinates student services in the school (Gartner, Larson, & Allen, 1995). Counseling and guidance programs provides elementary students with assistance in: understanding self and developing a positive self-image, showing respect for the feelings of others, understanding the decision-making process, developing effective study skills, being prepared to make the transition to the intermediate school, and gaining an understanding of the world of work (Finney & Maloney, 1985; McCullough, 1995; Paloma & Pendelton, 1991). Counseling is conducted with students and parents individually and in small groups when requested and determined appropriate. It is short-term, voluntary, and confidential. Parental permission is obtained prior to any extended individual or group counseling. Students are seen by the counselor when: parents request and indicate a need and desire that the counselor meet with their children, students request counseling, and teachers, administrators, or other school staff refer the student. Parents are informed of counseling groups for children and adults. Group counseling sessions for children focus on building self-esteem, learning how to make or keep friends, developing good study habits, improving communication skills, preparing for the intermediate school, and coping with changing family situations. Topics for parent groups include child-rearing concerns, child development, and methods parents may use to help children experience healthy development and success in school (Aldridge, 1991; Friedman & Benson, 1997). The elementary school guidance counselor works with parents through individual consultation, joint consultation with the children’s teachers, and parents discussion groups. In these ways the counselor assist parents to: understand their children’s progress in school, select strategies to motivate their children, develop realistic goals with their children, become actively involved in their children’s school life, and understand the educational program K-12 (Byrd, 1988, p. 29). The counselor may lead parent education and discussion groups and serves as a resource when parents study or discuss child-related issues. The counselor consults with parents to identify students with special abilities and/or needs. In this capacity the counselor helps parents understand the services available from other school staff such as the school psychologists, social worker, and resource teachers.

Sunday, August 18, 2019

A Look at Humor, Laughter, Tickling, and the Brain Essay -- Neurology

A Look at Humor, Laughter, Tickling, and the Brain Everybody smiles and laughs at some time or another. The first laughter appears at about 3.5 to 4 months of age (8)., way before we are able to speak. The average adult laughs 17 times a day (4). Even monkeys and apes have some facial expressions that are similar to human smiles. But really, why do we laugh? Why are we not able to tickle ourselves? What part of the brain is responsible for laughter and humor? Why do we say some people have no sense of humor? We never go to the doctor because we feel good or because we think something is funny. Therefore, it is not a clinical problem; that is why there has not been much research done on the topic of laughter and the brain. Although there is considerable information on the neuronal representation of speech, little is known about brain mechanisms of laughter (2). While many researchers have tracked the brain mechanisms of depression, fear and anger, they have ignored positive emotions and have just begun to study humor. Their investigations are shedding some light on how the brain processes humor and prompts laughter. Take this joke for instance: How many Bryn Mawr college students does it take to change a lightbulb? Answer: None, they were all so busy studying that they didn't even notice the light was out. If you found this old joke funny, you will get some activity going on in the brain. Investigations into how humor and laughter influence the brain are leading to a clearer understanding of how positive emotions affect brain mechanisms. This in turn may lead to creative ideas for new therapies for emotion disorders and pain (1). The physiological study of laughter has its own name, "gelotology". Researc... ...Nature Journal http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v391/n6668/full/391650a0_fs.html 3)What is so Funny and Why: Laughter and the Brain http://faculty.washington.edu/chudler/laugh.html 4)How Laughter Works http://www.howstuffworks.com/laughter.htm 5)Humor on the Brain http://www.howstuffworks.com/framed.htm?parent=laughter.htm&url=http://abcnews.go.com/sections/science/DyeHard/dye990414.html 6)The Heart of Laughter http://www.howstuffworks.com/framed.htm?parent=laughter.htm&url=http://www.wm.edu/wmnews/research/laughter.htm 7)Brain may hinder sense of self-tickling http://seattletimes.nwsource.com/news/health-science/html98/tick_102098.html 8)A Big Mystery: Why do we Laugh? http://msnbc.msn.com/id/3077386/ 9)Scientists Locate Sense of Humor http://abcnews.go.com/sections/living/DailyNews/humor001128.html A Look at Humor, Laughter, Tickling, and the Brain Essay -- Neurology A Look at Humor, Laughter, Tickling, and the Brain Everybody smiles and laughs at some time or another. The first laughter appears at about 3.5 to 4 months of age (8)., way before we are able to speak. The average adult laughs 17 times a day (4). Even monkeys and apes have some facial expressions that are similar to human smiles. But really, why do we laugh? Why are we not able to tickle ourselves? What part of the brain is responsible for laughter and humor? Why do we say some people have no sense of humor? We never go to the doctor because we feel good or because we think something is funny. Therefore, it is not a clinical problem; that is why there has not been much research done on the topic of laughter and the brain. Although there is considerable information on the neuronal representation of speech, little is known about brain mechanisms of laughter (2). While many researchers have tracked the brain mechanisms of depression, fear and anger, they have ignored positive emotions and have just begun to study humor. Their investigations are shedding some light on how the brain processes humor and prompts laughter. Take this joke for instance: How many Bryn Mawr college students does it take to change a lightbulb? Answer: None, they were all so busy studying that they didn't even notice the light was out. If you found this old joke funny, you will get some activity going on in the brain. Investigations into how humor and laughter influence the brain are leading to a clearer understanding of how positive emotions affect brain mechanisms. This in turn may lead to creative ideas for new therapies for emotion disorders and pain (1). The physiological study of laughter has its own name, "gelotology". Researc... ...Nature Journal http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v391/n6668/full/391650a0_fs.html 3)What is so Funny and Why: Laughter and the Brain http://faculty.washington.edu/chudler/laugh.html 4)How Laughter Works http://www.howstuffworks.com/laughter.htm 5)Humor on the Brain http://www.howstuffworks.com/framed.htm?parent=laughter.htm&url=http://abcnews.go.com/sections/science/DyeHard/dye990414.html 6)The Heart of Laughter http://www.howstuffworks.com/framed.htm?parent=laughter.htm&url=http://www.wm.edu/wmnews/research/laughter.htm 7)Brain may hinder sense of self-tickling http://seattletimes.nwsource.com/news/health-science/html98/tick_102098.html 8)A Big Mystery: Why do we Laugh? http://msnbc.msn.com/id/3077386/ 9)Scientists Locate Sense of Humor http://abcnews.go.com/sections/living/DailyNews/humor001128.html

Saturday, August 17, 2019

Absorption and Variable Costing, Inventory Management

Absorption and Variable costing are very important tools for cost accounting. Both of these costing methods allow you to see the cost of your inventory, in a different way. For example the absorption method allows you to assign all costs to the product, while variable costing allows only variable costs to be assigned to the product. Inventory management is extremely important as well because it ties into efficiency and lowering your costs so that your company can be as profitable as it can in operations.Throughout this paper I will discuss the importance of both costing methods, how it is implemented as well as using the income statement for costing. Most companies don’t necessarily look at the costs of all departments; they break down the departments into separate entity’s called profit centers. The companies do this because by breaking down each department they can see if there are any problem areas that they should correct, involving the performance of the individual profit centers. To look at the overall company’s performance, most people find it useful to look at the income statement.However, this income statement is of little use for determining the viability of the individual business units or segments. Instead, it is important to develop a segmented income statement for each profit center. That is why these two costing methods have been developed. One of them is based on variable costing and the other is based on absorption costing. They are costing methods because they refer to the way in which product costs are determined. Product costs are inventoried; and they include direct materials, direct labor and overhead.Period costs are expensed in the period they are incurred. These are usually selling and administrative expenses or other expenses to run your company day to day. The one difference between the two costing systems is fixed factory overhead. Absorption costing is a costing system that assigns all manufacturing cost to the produce, including fixed factory overhead. Absorption costing includes direct materials, direct labor, variable overhead, and fixed overhead. The four costs define the cost of the product. Under absorption costing, fixed overhead is viewed as a product cost, not a period cost.Fixed overhead is assigned to the product through the use of predetermined fixed overhead rate and is not expensed until the product is sold. Absorption costing has product costs of direct materials, direct labor, variable overhead, and fixed overhead. While the period costs include just selling and administrative expenses. Variable costing assigns only the variable manufacturing costs to the product; these costs include direct materials, direct labor, and variable overhead. As you can see variable costing stresses the difference between fixed and variable manufacturing costs.Fixed overhead is than treated as a period expense and is excluded from the product cost. The reason for this is because fixed overhead i s a cost of staying in business. After the period is over, any benefits provided by this capacity are expired and are not inventoried. Fixed overhead of any period is than seen as expiring in that period and is charged in total against revenues for the period. The product costs for variable costing include direct materials, direct labor and variable overhead. The period costs include fixed overhead, and selling and administrative expenses.Now we move onto the relationship between the variable costing income and the absorption costing income. The relationship changes as the production and the sales change. If you sold more than was produced, variable costing income is greater than the absorption costing income. But if you sold more than you produced that would mean that you were selling the beginning inventory and units produced. Under the absorption method, the units that are coming out of the inventory have the fixed overhead from the period attached to the inventory.So the amount of the fixed overhead expensed by absorption costing is greater than what the current period’s fixed overhead by the amount of fixed overhead flowing out of the inventory. The variable costing income is greater than the absorption costing by the amount of fixed overhead coming out of the beginning inventory from the current period. But if the production and the sales are equal than there is no difference between the two reported incomes. The income relationship is consider to be that if production is greater than sales than the absorption income is reater than the variable income. But if the production is less than the sales than the absorption income is less than the variable income. So than if the production equals the sales than the absorption income is also equal to the variable income. The differences between the absorption and variable costing are the recognition of when the expenses are occurred. The recognition of the expenses associated with the fixed factory overhea d. With the absorption costing, the fixed factory will than be assigned to the units produced.This actually presents two problems, first, how do we convert the factory overhead applied on the basis of direct labor hours or the machine hours into factory overhead applied to the units produced? Also, what is than done when actual factory overhead does not equal applied factory overhead? Now we move onto the variable costing and the segmented income statements. The variable costing is a useful tool in preparing a segmented income statement because it gives us useful information on the variable and fixed expenses. A segment can be considered a division, department, product lines, customers class among other things.In the segmented income statements, the fixed expenses are broken down into two categories; direct fixed expenses and the common fixed expenses. The additional subdivision highlights controllable versus the non-controllable costs and than enhances the manager’s ability to evaluate each segment’s contribution to the overall firms performance. The direct fixed expenses are the fixed expenses that are directly traceable to a segment. They are sometimes referred to as avoidable fixed expenses, because they disappear if the segment is eliminated.Two or more segments jointly cause common fixed expenses. These expenses persist even if one of the segments to which they are common is eliminated. The segment margin is a profit contribution that each segment makes toward covering a firm’s common fixed costs. The segment should be at least able to cover both of its own variable costs and direct fixed costs. A negative segment margin drags the firm’s total profit down. Segment income statements are useful in management decision-making. The reason so is so that you can run your company at the most efficient level, while raising your profit margin.This is a very interesting topic because it helps show the importance of inventory control and how it affects your operating income. The inventory management is very key to a company. The reason for this is because when your costs are to high and your profit margin is too low than there is probably a reason of your inventory being to high or the overhead being to high. The stress of inventory management cannot be understated for many companies but especially manufacturing companies. Apart from the product cost of the inventory, there are other types of costs that relate to inventories of raw materials, work in process, and the finished goods.Inventory must be bought, received, stored, and moved. The inventory related costs include the demand for a product that is known with near certainty for a period of time. Two major costs are usually associated with this, if the inventory is purchased from an outside source, then the costs are referred to as ordering costs and carrying costs. If the product is produced internally, then the costs are called setup costs and carrying costs. Ordering costs are the costs to place and receive the order. Carrying costs are costs of keeping the inventory in your warehouse or store.There also can be a third categories, which includes stock out costs, which are the costs of not having a product available when demanded by the customer or the cost of not having a raw material available when needed for production. A company that uses these types of costing methods will definitely have a better grasp of the costs associated with their products. This will help a company become more efficient and have a better idea of which product is making the most money and which product is making the least amount of money.Yet again, this is not used for your company as a whole usually but it is used for each product individually. So if I had a red yoyo and a green yoyo and was selling a lot of each and equal than I would break them down individually between red and green and possibly see that the green yoyo is more expensive a product and there fore I would either have to sell it at a higher prices (even though it is exactly the same product except the color), or I would have to stop selling the green yoyo and just sell the red yoyo.In order to run any type of company a manager must show extreme care to the inventory management, because you can have the best selling product on the market but if your not efficient enough with your inventory than you may put a huge damper on the future of your company and not allow your company to grow properly. I think if managers use all of these techniques they will have better understanding of there company and how to exercise the correct inventory management.

Macbeth and Tragic Flaw

Tragic flaw is defined as a personality flaw that makes the person commit a serious mistake so gravely that it can cause him/her death. A tragic flaw can also refer to a flawed judgment that a character has passed over a course of action, which is sadly irrevocable. In â€Å"Into the Wild†, Chris McCandless can be said to have committed a tragic flaw which has resulted in his death. By stubbornly clinging onto his ideal way to live, McCandless boldly leaves everything behind and ventures alone into the Alaska wilderness.Without being aware of what is to expect in Alaska and with very little preparation, McCandless simply died of starvation in a place where he presumed to be perfect. His death is ironic because instead of finding his paradise in Alaska, he finds his burial place. Similarly, the tragedy of Macbeth is caused by his tragic flaw. While being persistent in one’s belief is a virtue, too much of it becomes a deadly flaw for McCandless.In parallel, when Macbeth is filled with excessive ambition, then ambition ceases to be a positive motivator but becomes a deadly flaw for him. His ambition, based on his greed for power, has caused him unspeakable misery and torture. It has robbed him of the joy of comradeship with his wife, the bliss of friendship and respect from his people, and finally the very essence of his life – soul – as he sells himself to the evil forces. Hence, such tragic flaw has made him lose everything that he sees valuable before he loses the ultimate – his life.Macbeth’s tragic flaw begins as Macbeth chooses to believe in the witches’ prophecy. He secretly takes delight in the promotion to the title of Thane of Cawdor – â€Å"two truths are told/as happy prologues to the swelling act/of the imperial theme† (I. iii. 126-129). This ambition translates to an immense power that blinds him from moral senses of right and wrong. He reckons that it is his â€Å"vaulting ambition whi ch o’erleaps itself† (I. vii. 27) and makes him turn indifferent to what â€Å"even-handed justice† dictates.This ambition becomes Macbeth’s tragic flaw and motivates him to kill the gracious Duncan, to surprise the castle of Macduff, and to kill anyone who is in his way. His greatest punishment is far beyond death. In the end, not only that he suffers from the loss of a dear wife but from every meaning in life. He sees life to be a series of empty â€Å"tomorrow, tomorrow, and tomorrow† (V. v. 18), â€Å"a walking shadow† (V. v. 24), â€Å"a tale/told by an idiot, full of sound and fury/signifying nothing† (V. . 25-7). The theme of tragic flaw connects the entire play of Macbeth as the tragic hero falls victim to the temptation of the witches and his own greed. In reading the play, one cannot but feel terrified by the tragic consequence of one’s failure to control excessive ambition, as well as pitied by the fall of such a grea t man. The play not only is a great read, a classic masterpiece, but also a constant reminder of the ills of unchecked ambition.