Use this list of common medical abbreviations and terminology used by doctors, medical specialists, RNs, PAs, and other health-care professionals to help you read and decipher the information on your prescriptions and doctors' medical notes. [16] Like glass, amorphous PET forms when its molecules are not given enough time to arrange themselves in an orderly, crystalline fashion as the melt is cooled. to visualize blood flow to different regions of the brain in stroke. My nose plugged and I had to blow almost constantly. Recycling processes with polyester are almost as varied as the manufacturing processes based on primary pellets or melt. Besides this external (post-consumer) polyester bottle recycling, numbers of internal (pre-consumer) recycling processes exist, where the wasted polymer material does not exit the production site to the free market, and instead is reused in the same production circuit. Depending on purity of the recycled materials, polyester can be used today in most of the polyester manufacturing processes as blend with virgin polymer or increasingly as 100% recycled polymer. Based on how it is processed, PET can be semi-rigid to rigid, and it is very lightweight. This scattering means that crystalline PET is opaque and white in most cases. By using several different radionuclides, researchers can measure regional cerebral blood flow, blood volume, oxygen uptake, and glucose transport and metabolism, and can locate neurotransmitter receptors. FDA - Food and Drug Administration; licenses the use of human and veterinary drugs.. Physical Education Training (various schools) PET. The mechanical recycling where the original polymer properties are being maintained or reconstituted. Medical PET abbreviation meaning defined here. Although it forms naturally in some fruit, it can cause an off-taste in bottled water. Accumulation of gels and long-chain branching defects. Inside the dryer, hot dry air is pumped into the bottom of the hopper containing the resin so that it flows up through the pellets, removing moisture on its way. The Swiss Federal Office of Public Health concluded that small amounts of antimony migrate from the PET into bottled water, but that the health risk of the resulting low concentrations is negligible (1% of the "tolerable daily intake" determined by the WHO). [citation needed], Japanese scientists have isolated a bacterium Ideonella sakaiensis that possesses two enzymes which can break down the PET into smaller pieces that the bacterium can digest. Helpful, trusted answers from doctors: Dr. Fried on pet medical abbreviation: it is recommended that you see your doctor in 1 to 2 weeks after your abortion you ensure that the procedure has been completed and you are no longer pregnant. [21] Although antimony trioxide is of low toxicity when taken orally,[22] its presence is still of concern. The images in various disease states may then be compared to those of normal subjects. The latest PET flake conversion processes are applying twin screw extruders, multi-screw extruders or multi-rotation systems and coincidental vacuum degassing to remove moisture and avoid flake pre-drying. Look through 570 acronyms and abbreviations related to Veterinary: AAAP: Asian-Australasian Association of Animal Production Societies : AAAP Veterinary technicians should be able to understand those abbreviations and convert them into drug labels or instructions that pet owners will understand. PET containers are popular for packaging sodas, water, juices, salad dressings, cooking oil, peanut butter, shampoo, liquid hand soap, mouthwash, pharmaceuticals, even tennis balls. The established polyester recycling industry consists of three major sections: Intermediate product from the first section is baled bottle waste with a PET content greater than 90%. By using several different radionuclides, researchers can measure regional cerebral blood flow, blood volume, oxygen uptake, and glucose transport and metabolism, and can locate neurotransmitter receptors. This is causing the liberation of further degradation-supporting substances and coloring substances. Meanwhile, there are many engineering companies that are offering flake production plants and components, and it is difficult to decide for one or other plant design. Ad Lib – … A radiographic technique that selects a level in the body and blurs out structures above and below that plane, leaving a clear image of the selected anatomy. Abbreviation: PET Reconstruction of brain sections by using positron-emitting radionuclides. PET has a resin identification code of 1. See more. With the exception of renal tomography most tomographic procedures have been replaced by computed tomography (CT). I also came down with a sore throat and a bad cough. The chemical recycling where transesterification takes place and other glycols/polyols or glycerol are added to make a polyol which may be used in other ways such as polyurethane production or PU foam production, PET bottle collection and waste separation: waste logistics, Production of clean bottle flakes: flake production, Conversion of PET flakes to final products: flake processing, Sorting and selection for different colors, foreign polymers especially PVC, foreign matter, removal of film, paper, glass, sand, soil, stones, and metals, Coarse cutting dry or combined to pre-washing, Air sifting to remove film, paper, and labels, Removal of low-density polymers (cups) by density differences, Caustic wash, and surface etching, maintaining intrinsic viscosity and decontamination, Water circuit and water treatment technology. Pre-eclamptic toxaemia (PET) is also called Toxemia of Pregnancy or pregnancy induced hypertension. In order to save costs, an increasing number of polyester intermediate producers like spinning mills, strapping mills, or cast film mills are working on the direct use of the PET-flakes, from the treatment of used bottles, with a view to manufacturing an increasing number of polyester intermediates. Cost-efficiency can already be achieved with plant capacities within a range of 5000–20,000 tons/year. Computed tomographic scanning that produces images by rotating the x-ray beam at targets placed around a patient, instead of moving a patient on a gantry through the scanner. As far as recycled PET bottles are concerned, the defects mentioned can be sorted in the following groups: Taking into consideration the above-mentioned chemical defects and impurities, there is an ongoing modification of the following polymer characteristics during each recycling cycle, which are detectable by chemical and physical laboratory analysis. Abbreviation for positron emission tomography. Any disease-promoting condition due to either an inadequate or an excessive exposure to nutrients, i.e., undernutrition or overnutrition. abscess. In general, the following applies: The earlier in the process foreign substances are removed, and the more thoroughly this is done, the more efficient the process is. The treatment of polyester waste through total glycolysis to fully convert the polyester to bis(2-hydroxyethyl) terephthalate (C6H4(CO2CH2CH2OH)2). The recycling of PET bottles is meanwhile an industrial standard process that is offered by a wide variety of engineering companies.[38]. It is strong and impact-resistant. formation of vinyl ester end groups through dehydration or decarboxylation of terephthalate acid, reaction of the OH- or COOH- end groups with mono-functional degradation products like mono-carbonic acids or alcohols. Since this building block is much larger (six additional carbon atoms) than the ethylene glycol unit it replaces, it does not fit in with the neighboring chains the way an ethylene glycol unit would. The destruction of the hydro peroxide groups is, with other processes, already carried out during the last step of flake treatment for instance by adding H3PO3. The majority of the world's PET production is for synthetic fibres (in excess of 60%), with bottle production accounting for about 30% of global demand. Please look for them carefully. Preliminary English Test. PET preform for injection stretch blow moulding of a bottle. [9] If crystallizable PET is used, the trays can be used for frozen dinners, since they withstand both freezing and oven baking temperatures. A later (2006) but more widely publicized study found similar amounts of antimony in water in PET bottles. PET medical abbreviation meaning with flashcards ICD-10 codes. After manufacturing, a detectable amount of antimony can be found on the surface of the product. Thus, before the resin can be processed in a molding machine, it must be dried. The first machine injection molds the preform, which resembles a test tube, with the bottle-cap threads already molded into place. It is used in the diagnosis of osteopenia and osteoporosis. This compound is purified by vacuum distillation, and is one of the intermediates used in polyester manufacture (see production). Synonym: Computed tomographic scanning that uses the inert gas xenon to improve the visual distinction between healthy and abnormal tissues, esp. A PET bottle which has been heated by a candle and has recrystallized, making it opaque. It uses a radioactive substance called a tracer to look for disease in the body. In both cases, the initial raw material is a mainly recycled material of higher intrinsic viscosity. The semicrystalline material might appear transparent (particle size less than 500 nm) or opaque and white (particle size up to a few micrometers) depending on its crystal structure and particle size. Typically, residual moisture levels in the resin must be less than 50 parts per million (parts of water per million parts of resin, by weight) before processing. showing only Military and Government definitions (show all 69 definitions). Plastic bottles made from PET are widely used for soft drinks (see carbonation). Methanol (CH3OH) is removed by distillation to drive the reaction forward. In packaging applications look for disease in the chain, which also disturbs crystallinity recycling plants been. The molten polymer forms a more crystalline material characterized by: Persistent high blood pressure or..., promoted as a screening test for cancer and other illnesses threads already into... 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