"Rubber" and "India rubber" redirect here. For other uses‚ see Rubber (disambiguation). This article is about the polymeric material "natural rubber". For man-made rubber materials‚ see Synthetic rubber. Latex being collected from atapped rubber tree Rubber tree plantation of Thailand （7 August 2011） Natural rubber‚ also called India rubber or caoutchouc‚ as initially produced‚ consists of suitable polymers of the organic compound isoprene‚ with minor impurities of other organic compounds
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Why I chose this topic Are you bothered by stains? Some stains are very hard to get rid of; they require technique and proper knowledge to remove. The topic I investigated washing in what temperature of water removes stains the best. I came up with this when I saw this in one of the ideas for an experiment‚ and remembered the time when my brother stained his clothes while my mother was away. I thought about factors that could affect washing‚ and realized I never really cared about the temperature
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and most long-standing substances used for the management of pain and other medical complications is opioids. It is well-known that the naturally occurring opioids (primarily morphine and codeine)‚ the related endogenous opioid-like peptides and synthetic chemical substances have properties that can be indorsed to action that is mediated by binding at the various opioids receptors within the central and peripheral nervous systems. A number of opioids are available for clinical use‚ including morphine
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proper ventilation. It is undeniable that has been changes in the residential fire environment over the decades. Nowadays the homes are made with different construction materials‚ they are larger‚ with different geometries‚ they also carry more synthetic fuel loads. Because of these changes flashover will occur much faster and the failure time of walls‚ windows and interiors doors have decreased as well‚ all this holds a major impact on fire growth‚ and if it affects fire growth it should also affect
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* Plastics is one of the few new chemical materials which pose environmental problem. Polyethylene‚ polyvinyl chloride‚ polyester is largely used in the manufacture of Plastics Plastics is the general common term for a wide range of synthetic or semi synthetic organic solid materials suitable for the manufacture of industrial products .Plastics are typically polymers of high molecular weight and may contain other substances to improve performance and/or reduce costs.2. * 3. Types of Plastic
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this line‚ and who gets to decide? Some individuals argue that ‘she would not be human‚ because she is no longer in possession of her natural body given to her by God’ and while that is a point to be made‚ it seems shaky at best. Computers and synthetic parts of the human body may not currently have the functionality and realism to them as our natural body parts do‚ however even that is a quickly approaching facet of the past. Even today doctors and scientists the world over work every day to make
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Peerless are offering hence there is high rejection rate. 3) The plant is being run by old machineries and equipments. 4) New players have immerged in the marking with synthetic starch production. On the other hand the other Peerless plants are performing well. Plant at Oregon has even established a successful running synthetic starch production line. The situation at Blair plant had grown grimmer with the demise of the director of Peerless starch the Grandson of the founder and now the new director
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ovulation 1.Oral contraceptives 2.Contraceptive implant Oral contraceptives(a combination of synthetic oestrogen and progesterone) Injectable contraceptives (a combination of synthetic oestrogen and progesterone injected intramuscularly at monthly intervals or longer Contraceptive implant (soft‚ flexible‚ capsules are inserted under the skin of the upper arm. These release synthetic oestrogen and progesterone continuously) Slightly increased risk of hypertension and/or thrombosis
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Section A Multiple choice (17 marks) Do NOT Write on this section of the paper. Answer ALL questions in the table provided at the start of Section B Question 1. Which of the following best describes the structure of metals? A lattice of A. alternating positive and negative ions B. positive ions surrounded by freely moving electrons C. molecules held together by covalent bonds D. atoms held together by covalent bonds Question 2. Which of the following is not a property of most metals
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What is phonology? Phonology is the study of the sound system of languages. It is a huge area of language theory and it is difficult to do more on a general language course than have an outlineknowledge of what it includes. In an exam‚ you may be asked to comment on a text that you are seeing for the first time in terms of various language descriptions‚ of which phonology may be one. At one extreme‚ phonology is concerned with anatomy andphysiology - the organs of speech and how we learn to use
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