The basic structure of all the penicillins consists of a thiazolidine ring fused with a beta-lactam ring‚ creating a fundamental nucleus (also known as 6-amino penicillanic acid) crucial for their antibacterial activity. A wide variety of semisynthetic penicillins are produced by altering the composition of the side chains attached to this nucleus.The molecular formula of penicillin is C16H18N2O4S and weight of 334.39 g/mol‚ each base with a variable side chain‚ “R” that differentiates the penicillins
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PARATHYROID GLANDS Parathyroid glands are small glands of the endocrine system which are located in the neck behind the thyroid. There are 4 parathyroid glands in the human body. Parathyroid glands control the calcium in our bodies – how much calcium is in our bones‚ and how much calcium is in our blood. Parathyroid glands secrete or make a hormone‚ called parathyroid hormone or PTH. The parathyroid glands measure the amount of calcium in the blood every minute of every day and if the calcium
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A Summary of “Newfoundlandese If You Please‚” Diane Mooney captures the diverse language of the Newfoundlanders in her essay “Newfoundlanse‚ If You Please”. She explains how the language has evolved and the different way of speaking in all the communities of Newfoundland. The Southern part of the Island is mostly predominant by the Catholic-Irish and they have a unique “dialect”. On the other side of the Island‚ live the Anglicans-Irish and their speed of speaking makes even harder to understand
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the adrenal medulla‚ which is in the inner adrenal gland. This gland sits atop the kidney. When put under stress this gland is stimulated by the nervous system and releases adrenaline into the blood stream. The release of adrenaline is a three step process. First‚ the hypothalamus produces hormones that stimulate the pituitary gland. Next‚ the pituitary gland then produces corticotropin hormones which are hormones that stimulate the adrenal glands that eventually produce adrenaline. In 1895
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Micro-environment Micro-environment consists of the factors or elements in an organisation’s immediate area of operations that affect its performance and decision making freedom. These factors affect its ability to serve its customers‚ company‚ suppliers‚ marketing intermediaries‚ customer markets‚ competitors and publics. Competitors form a part of the organisation’s micro-environment by having a direct effect on its market position. The following key groups can be identified: Customers: Customers
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J1.7 OBSERVATION-QUALITY ESTIMATION AND ITS APPLICATION IN THE NCAR/ATEC REAL-TIME FDDA AND FORECAST (RTFDDA) SYSTEM Yubao Liu*‚ Francois Vandenberghe‚ Simon Low-Nam‚ Tom Warner and Scott Swerdlin National Center for Atmospheric Research/RAP‚ Boulder‚ Colorado 1. INTRODUCTION In the last three years‚ the National Center for Atmospheric Research (NCAR) and the Army Test and Evaluation Command (ATEC) have been developing a multi-scale (with grid sizes of 0.5 - 45 km)‚ rapidly cycling (at
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1. The communication process done by Agilent Technologies in terms of dealing with downsizing is remarkable for me. In my own opinion‚ they have done exemplary job in dealing with downsizing. They have created a good way of communicating to its employees. It tried to utilize every medium possible to disseminate information regarding the upcoming layoff of employees. Agilent Technologies used an open style of communication in their office to make the employees aware of what is bound to happen. The
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R E V I E W S H E E T EXERCISE 27 Functional Anatomy of the Endocrine Glands Gross Anatomy and Basic Function of the Endocrine Glands 1. Both the endocrine and nervous systems are major regulating systems of the body; however‚ the nervous system has been compared to an airmail delivery system and the endocrine system to the pony express. Briefly explain this comparison. The nervous system is a lot more fast acting and more rapid action occurs when compaired to the endocrine and the slow
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7.1.1 Describe the structure of DNA‚ including the antiparallel strands‚ 3’-5’ linkages and hydrogen bonding between purines and pyrimidines. DNA is made up of two strands. At one end of each strand there is a phosphate group attached to the carbon atom number 5 of the deoxyribose (this indicates the 5’ terminal) and at the other end of each strand is a hydroxyl group attached to the carbon atom number 3 of the deoxyribose (this indicates the 3’ terminal). The strands run in opposite directions
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