Chemical Senses OLFACTION The sense of smell. Begins with the detection of molecules suspended in the air Olfactory stimuli Must be soluble in fat Taken through the nostrils and circulated within the nasal cavities connected to the nostrils. Olfactory epithelium Thin sheet of cells which contain neural receptors for olfaction Contains olfactory receptor cells and glia-type support cells that produce mucus Also contains basal cells which give rise to new receptors when needed Olfactory
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Chemical Proportionality (Carbonate and Hydrochloric Acid) Introduction: The purpose of this experiment is what happens when a solid substance‚ a metal carbonate is added slowly to a solution of an acid. We are finding methods of determining acid concentration. For us to balance certain equations‚ we will use a stoichiometry. For this experiment‚ we will need to set up the ratio and finding the concentration of HCI. Procedure: • Grab 4 different beakers. • Add a small amount of sodium carbonate
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follow a diamond’s global path to market. Below: 1. The search for diamonds is not exactly easy. Many miners and diamond diggers in sub-Saharan Africa travel great distances to find work and submit to gruelingly long hours for low wages – or sometimes no wages – in substandard conditions. The informal mining industry is where workers tend to be most exploited. In the Wild West atmosphere of many informal diamond mines‚ the quest for the “big find” – and the financial gain it promises – is
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Studies Report: Victoria Chemicals This report will be covering the several capitals investment aspects in which are associated with the case – Victoria Chemicals PLC (A): The Merseyside Project‚ written by Robert. F. Bruner. Introduction In the case‚ Victoria Chemicals‚ a fictional company‚ were under the pressure of its investors to improve its performance as the earnings per shares (EPS) has decreased from 250 pence in 2006 to 180 pence in 2007. Victoria Chemicals is a producer of polypropylene
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Chemical Reaction Lab Well #1 CuCl2 + Al (shot) - Bubbling - Turning reddish-maroon - 33oC Well #2 CuCl2 + Al (foil) - Bubbling‚ but less than well #1 - Turning black - 28oC Well #3 CuCl2 + Zn - Turned black then red - No bubbling - 29oC Well #4 CuCl2 + NH4OH - Cloudy - No bubbling - 26oC Well #5 CuCl2 + NaCO3 - Not mixing with CuCl2 - Heterogeneous - 25oC Well #6 CuCl2 + AgNO3 - Cloudy - Top layer is white -29oC 1. The more pronounced reaction was the aluminum
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CHEMICAL MEDIATORS OF INFLAMMATION Cell derived mediators Mediator | Source | Function | Vasoactive amines | Histamine | Mast cells‚ basophil‚ platelet | Vasodilation‚ ↑ vascular permeability‚ endothelial activation | Serotonin | platelets | Vasodilation‚ ↑ vascular permeability | Eicosanoids | Prostaglandins | Mast cells‚ leukocytes | Vasodilation (PGD2‚PGE1‚E2 & PGF2-α)‚ pain (PGE2)‚ fever | Thromboxane A2 | | Promotes platelet aggregation‚ vasoconstriction | Prostacyclin
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Transport Phenomenon (Electrical and Thermal) in two allotropic forms of Carbon (Diamond and Graphite) Graphite and Diamond both are formed from carbon (two allotropic forms of carbon). Though they have similar constituent element‚ they differ a lot in their properties. Diamond is a good thermal conductor but a bad electrical conductor‚ while graphite is a bad thermal conductor but a good electrical conductor. This is one example of their property difference. The difference in their properties
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Chemical Separation Introduction: The objective of this experiment was to extract the pigments from spinach leaves‚ perform Thin Layer Chromatography (TLC) on the spinach leaf extract‚ and then determine the best solvent mixture to use to separate the pigments in the extract. The pigments are located inside the chloroplast walls in the cells of the spinach leaves. In order to obtain the pigments the cell walls must be broken down thus exposing the pigment containing chloroplasts. Upon
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product in Netherland and sale it to cost to Hollandsworth 9 RECOMMENDATION 10 QUESTIONS 11 QUESTION #1 11 QUESTION #1b 11 QUESTION #1c 11 QUESTION #2 12 EXHIBITS 13 AXEON N.V. Case Analysis Axeon N.V Overview Axeon N.V. is a producer of industrial chemicals with 24 manufactory sites around Europe‚ and headquarters in Heerlen‚ Netherlands. It has acquired several companies within Europe to facilitate regional market penetration. By 1996 total sales from each subsidiary is shown in the table below.
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CASE STUDY 1: ZYCHOL CHEMICALS CORPORATION I. Problem(s): With all of the information gathered‚ has productivity increased at all? Should the accounting practices be further investigated? II. When I started the single-factor productivity analysis it looked as if productivity were headed in the right direction ’’ up. Because the outcomes of both the units per RMU and units per labor hours had an increase‚ 3.59% and 4.79% respectively. Even with the increase in cost per barrel from
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