CHEM3412 Synthesis of a Porphyrin Porphyrins are hetereonuclear‚ macrocyclic compounds that play an important role in living organisms. Examples include the non-protein heme portion of hemoglobin in animals whereby the lone pairs on nitrogen can bind to the oxygen-carrying iron. In plants‚ chlorophyll uses the vast conjugation to allow absorption of light for photosynthesis. The characteristic colors of porphyrins is also due to the conjugation. An examination of the porphyrin structure
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. ~.. r .. .‚III/!I.. ‚• •f t . ‚.‚;;;‚UUft Y f__ _ P_RO_O_O_c_1 PDS: 1-16 _DA_T_A_S_f5l~_T GU_IT_erl_t: SUperseI &10 l-10 Neme‚‚ . _ nrkc Gnphlte Anoryhout Gnphite Ctey Siticr Tdc Ilcrtrin ’ . -‚ _ OSHApcl CAS# . ‚. N.iosL 77t242-S 2.5 2.5 778?‚42-5 2‚5 2.5 [5’15" l?32-58-57 t4g0g60-? 0.051o lI 14t0?-96-6 2.0 2.0 9004-53-9 "Retpirablc fraction - .... ACSF t{v 2.5 2..5 l0 0.I 2.0 _ _‚ _ in mluesacprcsscd mg/m3 TotalDust I Respirablc dust IEYSfCIi
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The Inferiority Complex SCENE ONE (A Payless outlet‚ Cross Roads‚ on a Friday night during the summer of 2012. Amidst the many buyers is GEORGE‚ a local bartender wearing a crisp black trouser and a tight button up shirt. He looks through the variety of dress shoes on display. He glances up as an empoyee comes over to assist him.) EMPLOYEE 1 May I help you? GEORGE (in an obviously fake american accent) Yea sweetheart. Do ya got no croc’s in a size 13? EMPLOYEE 1 Umm..
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Steel is a metal alloy whose major component is iron‚ with carbon content between 0.02% and 2.14% by mass. An alloy is a metallic solid solution composed of two or more elements. Complete solid solution alloys give single solid phase microstructure‚ while partial solutions give two or more phases that may or may not be homogeneous in distribution‚ depending on thermal (heat treatment) history. Alloys usually have different properties from those of the component elements. Alloy constituents are usually
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Identifying sites of protein synthesis in Chlamydomonas using erythromycin and cyclohexamide as protein synthesis inhibitors. October 16‚ 2009 Introduction: In living cells‚ prokaryotic or eukaryotic‚ the synthesis (construction) of proteins is accomplished by similar machinery. Amino acids‚ ribosomes‚ messenger RNA (mRNA)‚ and transfer RNA (tRNA)‚ are all necessary for the building of functional proteins in a cell. Ribosomes are the site of protein synthesis in a cell‚ and there are two
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Components of fitness & training methods Components of fitness Aerobic endurance- the heart’s ability to deliver blood to working muscles and their ability to use it (e.g. running long distances) Muscular endurance- is the ability of a muscle or group of muscle‚ to work continuously/for a long time without tiring. Flexibility- The range of movement at/across/around a joint Speed- Moving the whole body part of the body very quickly/in a short time. Strength- The maximum force a muscle/group of
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| |AO2 |Investigate and participate in five training methods designed for different fitness components | |Candidate Name |Joed Yniesta | • Aerobic Training – Continuous Training¬ • Resistance Training – Circuit training
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Logistics is the management of the flow of resources between the point of origin and the point of consumption in order to meet some requirements‚ for example‚ of customers or corporations. The resources managed in logistics can include physical items‚ such as food‚ materials‚ equipment‚ liquids‚ and staff‚ as well as abstract items‚ such as time‚ information‚ particles‚ and energy. The logistics of physical items usually involves the integration of information flow‚ material handling‚ production
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of MOTHER BOARD [pic] Task 2(Optional): A practice on disassemble the components of a PC and assembling them to working condition. Why should one learn about hardware? 1. Troubleshoot you and save time. 2. Knowing about system internals and components. 3. Very easy installation for modern hardware. 4. Install extra memory. 5. Removing components. Safety Precautions: 1. Beware of electrostatic discharge (ESO) 2. Build computer
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replication in a eukaryotic cell is more difficult. DNA of an eukaryotic cell is in chromatin form to fit into the small nucleus for the replication to occur‚ first the DNA should open. This is because it is harder for eukaryotes to carry out DNA synthesis. Replication of DNA in a prokaryote is different from a eukaryote. In a prokaryote they have a single origin where the replication process starts. Also eukaryotes synthesize the same time they are being transcribed‚ and ribosomes will be active
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