microbial organism such as bacteria‚ fungi etc. into smaller compounds. The microbial organisms degrade the polymer through metabolic or enzymatic processes. Synthetic plastics are resistant to degradation‚ and consequently their disposal is fuelling an international drive for the development of biodegradable polymers. A variety of natural‚ synthetic‚ and biosynthetic polymers are bio and environmentally degradable. A polymer based on a C-C backbone tends to resist degradation‚ whereas heteroatom-containing
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they’d see fewer insects. He presented the results on Monday at the American Chemical Society’s meeting in New York. They found the extracts were as efficient as the synthetic pesticide diazinon‚ soon to be phased out in Canada. Better yet‚ Scott said pepper is unlikely to cause many of the problems associated with synthetic pesticides‚ such as groundwater contamination‚ insect resistance and human illness. "There’s not as much concern in terms the impact on human health because of the long
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Science Fair Research Paper My Science Fair topic is about silly putty and how it is made. Chemical reaction‚is the process by which one or more substances are converted into one or more different substances.Old bonds break and new bonds form. The original substances are called reactants. The resulting substances are called products. It is a simple chemical reaction. Another simple reaction might involve a reactant molecule breaking apart. Many enduring substances such as rock and water are highly
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cabbage‚ and cauliflower. Vegetable oils such as olive and soybean also contain small amounts of the vitamin. K2 is a form of the vitamin that is synthesized by bacteria in the gastrointestinal tract. Finally‚ K3 is a synthetic form of the vitamin which is manmade. The synthetic form of vitamin K is routinely given to newborns due to the lack of the vitamin and low amounts of clotting factors‚ which increases the risk of bleeding in the first few weeks of life. Patients who are on a long term
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environmental threats.Fish scales of teleosts: Chanos chanos and Tilapia nilotica were utilized for recovering astaxanthin. The innovation in adsorption is the utilization of solid wastes as natural sorption material and their availability at minimal cost. Synthetic astaxanthin dissolved in water was made to flow in "Fish Scale Adsorption Apparatus" (FSAA) containing unshredded or shredded scales. Comparison of treatments based on the discoloration of filtrate to be released from the FSAA and the length of time
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Seeing Similarities Between Plants and Animals As you look around outside‚ you may see birds perched in trees‚ frogs croaking on lily pads‚ and even dogs digging in the grass. Our world is filled with plants and animals‚ yet when a person thinks of the phrase ’plants and animal‚’ they automatically begin thinking about the differences between the two. As different as they may seem‚ plants and animals are very similar in the following areas: reproduction‚ human uses‚ and the requirement of water
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In present times‚ the development of new procedures has changed the need to test on animals‚ yet it is continued in vain. Scientists have developed synthetic cells‚ along with the use on in vitro‚ which act like human cells. (Stephen Magwood‚ Stephen George. 1996 NERC Unit of Aquatic Biochemistry‚ University of Stirling). This method of using synthetic cells‚ which causes no pain to any living animal‚ has been proven to be 11% more effective than the related animal tests. The findings are more accurate
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Background of the study Due to the overwhelming demand of plastic bag production and its effects on our environment‚ our landfills are crammed with these non-biodegradable materials. Substances used in the manufacturing brought forth various harmful chemicals which worsen over time. As the destructive compounds such as Chlorofluorocarbons were introduced‚ the complete deprivation of the Ozone Layer starts. However‚ scientists and nature preservers alike managed to overthrow this hazard‚ but not
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available synthetic adhesives continuously increase. Pili nut‚ a product of a Pili tree‚ is a versatile nut used for a variety of products such as pili nut brittle‚ pili cake‚ roasted pili and many other Filipino delicacies. The nut kernel‚ the most important part of Pili‚ can also be roasted and eaten as a substitute for almonds. (dela Rosa‚ 2004) The Pili is a shady tree with resinous wood that grows locally. It has potential resins that could be a possible substitute for synthetic adhesives;
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migraine headaches . Today the 5000-year medical history of cannabis has been almost forgotten. Its use declined in the early 20th century because the potency of oral ingestion was high‚ and alternatives became available -- injectable opiates and‚ synthetic drugs such as aspirin and barbiturates. In the United States the Marijuana Tax Act of 1937
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