Sulphonation – The Process Most electrophilic substitution reactions are irreversible but sulfonation is an exception. Treatment of benzene with "oleum" (a solution of SO3 in concentrated sulfuric acid) will give the sulfonic acid‚ the electrophilic species being sulfur trioxide which is Lewis acidic. Fig – 1 Sulphonation : Benzene equation The sulfonic acid can be converted back by treatment with hot aqueous acid. The reason for this reversibility is the fact that the Wheland intermediate is overall
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International Financial Reporting Standards (IFRS) are an international set of accounting standards. Early in the 21st century‚ the Australian Accounting Standards board‚ with guidance from the Financial Reporting Council (FRC)‚ decided to implement IFRS’s throughout Australia. This decision was made so that Australia could participate and contribute to the development of a distinct set of accounting standards that could be used all around the world. This report will explore the process of setting
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is on his mind. Although Joey is the boxer‚ one who should have physical dominance‚ Lenny gains his foothold by attacking his father and brothers’ emotional vulnerability. Their power struggle can be psychologically due to Jessie’s death years prior; it has created a chasm between the men as they are now lacking a mother/wife figure. They are unable to communicate affectionately towards each other and her absence has created a expression barrier for the family; it has made the men who they
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O’Hagan hopes to compare and contrast both academic theory‚ political views and highlight building and regeneration practices of the mid 20th century. The Essay will provide a detailed summary of the novels plot then go onto explain and relate some of O’Hagan’s underlying themes to key findings of relevant academic material. At this point in time there was very little academic theory on regeneration of areas in Scotland‚ especially in brown field areas. The emphasis was to create homes for people after
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are hermaphrodites‚ meaning they have both female and male organs. They reproduce sexually but they cannot reproduce by fertilizing their own eggs with their sperm. Planarians can also reproduce asexually by regeneration. Planarians have become a vital model system for studying tissue regeneration and stem cell characteristics because of their quick ability to regenerate. Studying planarians will build on our current knowledge in the fields of regenerative medicine and stem cell biology. Flatworms themselves
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OPTICAL AMPLIFIERS IN OPTICAL COMMUNICATION SYSTEM Arminder kaur1‚ Upneet Kaur2‚ Gaurav soni3 1‚2M.Tech Scholar (ECE)‚ Amritsar College of Engg. &Technology‚ Amritsar‚ Punjab‚ India. 3Associate Professor‚ Deptt. of ECE‚ Amritsar College of Engg. & Technology‚ Amritsar‚ Punjab‚ India. ABSTRACT: This paper reviews several technologies of optical amplifiers with their applications and we focus on the recent progress in some important aspects of several optical fiber amplifier technology
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The Zimbardo prison experiment was a study of human responses to captivity‚ dehumanization and its effects on the behavior on authority figures and inmates in prison situations. Conducted in 1971 the experiment was led by Phlilip Zimbardo. Volunteer College students played the roles of both guards and prisoners living in a simulated prison setting in the basement of the Stanford psychology building. Philip Zimbardo and his team aimed to demonstrate the situational rather than the dispositional causes
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the United States grew in power‚ it began to act likewise. An old concept idealised by the American people was Manifest Destiny. Senator Albert J. Beveridge describes the American people as‚ “...[God’s] chosen people‚ henceforth to lead the regeneration of the world...(Document E)” It was believed that it was America’s divine right to rule over the world. We would do this by taking control of the Pacific Ocean which was predicted to be the center of future commerce (Document E). Likewise‚ Josiah
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different level of embryogenicity. In order to exploit diploid cotton a regeneration system is required to achieve transformation based goals. The response of varieties varied accordingly on this medium. It ignoble low concentration
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of India." Journal of Homosexuality (1986): 35-54. Web. Reddy‚ Gayatri. “With Respect to Sex: Negotiating Hijra Identity in South India”. Chicago‚ IL: University of Chicago‚ 2005. 78-98. Print. Reddy‚ Gayatri. ‘Men’ Who Would Be Kings: Celibacy‚ Emasculation‚ and the Re-Production of Hijras in Contemporary Indian Politics. Social Research; Spring2003‚ Vol. 70 Issue 1. Print.
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