In the 1930’s‚ Richard Dogmagk experimented with a red dye called prontosil and found that it had strange healing effects‚ when he injected the dye into mice with severe streptococcus infections‚ they all survived. Dogmagk had discovered the one of the fist antibiotics‚ specifically the first Sulfa drug. When scientists isolated the active part of the prontosil molecule they discovered how it and all sulfa drugs work. Sulfa drugs contain a sulfur atom that has six total bonds (shared electrons)
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Ancient Egyptian Inventions Wednesday‚ 16 September 2009 Egyptian civilization was born on the banks of the Nile in 3150 BC‚ when the upper and lower Egypt were united under the rule of the first Pharaoh. Egyptians were intelligent people who made inventions in almost every corner of life‚ which made them the longest lived civilization. Although normally the Egyptian civilization is associated with the pyramids and mummies‚ the Egyptians actually created numerous inventions that have made
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The United States of America became a union through sacrifice and freedom. Prior to the Civil War‚ most slaves in the South risked their lives for freedom. Harriet Tubman‚ along with Thomas Garrett and Frederick Douglass‚ were all important figures in the Underground Railroad. Their heroic deeds illustrated the themes that made their country unite. As a conductor‚ Tubman led more runaways to the promised land. Her motto was‚ “We got to go free or die. And freedom’s not bought with dust.” She
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Mina drömmars stad (1960) av Per Anders Fogelström En sensommar år 1860 kommer den 15 årige Henning vandrandes till huvudstaden Stockholm‚ fylld av nyfikenhet och hoppfullhet. Det är en omvälvande tid för huvudstaden‚ alkohol‚ prostitution och arbetslöshet råder i staden och för vissa känns läget hopplöst. Men i slutet av tunneln finns alltid ljus och industrialiasmen börjar ta fart på riktigt och möjligheterna öppnas. Boken beskriver stadens utveckling i ett historiskt perspektiv‚ från bondesamhället
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Question 1 1. The following is Addison Corporation’s contribution format income statement for last month: Sales $1‚000‚000 Less: Variable Expenses $ 700‚000 Contribution Margin $ 300‚000 Less: Fixed Expenses $ 180‚000 Operating Income $ 120‚000 The company has no beginning or ending inventories. A total of 20‚000 units were produced and sold last month. What is the company’s margin of safety in dollars? $400 000 10
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that air is a mixture of nitrogen and oxygen. His other contribution includes researches in the field of quantitative chemistry. “Amedeo Carlo Avogadro” Amedeo Carlo Avogardro was born in Italy in 1776 and his main contribution was in the field of relative molecular mass. He established the relationship between the masses of different gasses at the same volume and their corresponding molecular weights. His more noted contribution was the Avogadro law where he established the molar particle
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CSO CONTRIBUTIONS TO THE DEVELOPMENT OF CAMBODIA 2011 A Report Commissioned by The Cooperation Committee for Cambodia March 2012 Disclaimer: © The opinions expressed herein are those of the author and of the various informants and they do not necessarily reflects the views and opinions of the Cooperation Committee for Cambodia (CCC). Reprints or reproductions or portions or all of this document are encouraged provided due acknowledgment is extended to CCC and the author. CSO Contributions
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Essay #1: History The history of ancient Babylonia is really long‚ but this essay is a short and to the point summery of the entire history. The history of Babylonia started near the end of the year 2000 BC‚ when invaders were attacking the Sumer kingdom. Sumer was a powerful kingdom in the western part of Asia‚ and it some what occupied what would become Babylonia. After the kingdom of Sumer was destroyed the city-states of Larsa and Isin came into settle on the land once occupied by Sumer. This
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Question 4 Ancient Greece and Rome were two of the most influential societies that contributed to the development of common Mediterranean culture. Through their advances in religion‚ politics‚ and education‚ they created the foundation for cultural practices in many of today’s societies. Their practices are not only still used in the Mediterranean area‚ but also around the world in places like the United States. Religion is a key cultural factor that ties the community together‚ and for Ancient
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Advocate for a POSITIVE Change (A Personal Essay) We Can Do Better If We Want To. According to a famous author‚ “Change has a considerable psychological impact on the human mind. To the fearful it is threatening because it means that things may get worse. To the hopeful it is encouraging because things may get better. To the confident it is inspiring because the challenge exists to make things better.” With this inspiring statement‚ I firmly believe that CHANGE starts in our MIND. Somehow
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