what is a 'dimer'?
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Dimer (chemistry) Dimers of carboxylic acids are often found in vapour phase. A dimer (/ˈdaɪmər/) (di-, two + -mer, parts) is an oligomer consisting of two structurally similar monomers joined by bonds that can be either strong or weak, covalent or intermolecular.
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- A girl who is rated 10 out of 10 on the hotness scale. That girl is a total dimer. #hot #cute #hotness scale #dime #10. by Chet Erikson July 02, 2007. 48 14. Buy the mug Buy the tshirt.
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Pyrimidine dimer Pyrimidine dimers are molecular lesions formed from thymine or cytosine bases in DNA via photochemical reactions. Ultraviolet light induces the formation of covalent linkages by reactions localized on the C=C double bonds. In dsRNA (double-stranded RNA), uracil dimers may also accumulate as a result of UV radiation.Two common UV products are cyclobutane pyrimidine dimers (CPDs, including thymine dimers) and 6,4 photoproducts.These premutagenic lesions alter the structure of DNA and consequently inhibit polymerases and arrest replication. cyclobutane pyrimidine dimer (CPD) contains a four membered ring arising from the coupling of the C=C double bonds of pyrimidines.
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D-Dimer Blood Test D-Dimer Blood Test The D-dimer blood test is used to rule out the possibility of active blood clot formation in an individual. The following article will help you understand this test in detail to rule out chances of any medical conditions that you think you are suffering from.
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- Alere Clearview Simplify D-Dimer Test Kit A rapid two-step test for the detection of D-dimer Specifications Clia Complexity Non-waived View More Specs.
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dimer Noun. 1. dimer-a compound whose molecules are composed of two identical monomers. chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight.oun. 1. dimer-a compound whose molecules are composed of two identical monomers. chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight.
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- Results. The d-dimer test measures the amount of a substance that is released when a blood clot breaks up. The normal values listed here (called a reference range) are just a guide.These ranges vary from lab to lab, and your lab may have a different range for what's normal.he d-dimer test measures the amount of a substance that is released when a blood clot breaks up. The normal values listed here (called a reference range) are just a guide.
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- 1 Age. 2  A child must be under age 19 at the end of the year, unless he or she is under age 24 and a full time student. 3  However, any child who is permanently and totally disabled can be claimed as a dependent, regardless of age.4  Support. A child must be under age 19 at the end of the year, unless he or she is under age 24 and a full time student. 2  However, any child who is permanently and totally disabled can be claimed as a dependent, regardless of age. 3  Support. 4  The child can’t provide more than half of the money for his or her own support.
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Test Center d dimer is one of the measurable by products of activation of the fibrinolytic system quantitation of d dimer assesses fibrinolytic activation and intravascular thrombosis d dimer is of particular value in excluding the diagnosis of venous thromboembolism among patients at high risk
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D-Dimer Test & Results Explained D-Dimer is a breakdown product produced by the normal process of clotting. It is normally present in small quantities in the blood; when increased it is suggestive of increased clotting activity in the body. D-dimer is a blood test, performed on the same tube as a coagulation profile or INR Test.
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Top 30 Doctor insights on: What Is A High D Dimer Test Result Normal finding: D-dimer is a breakdown product that is produced when blood clots are formed and broken down in the bloodstream. A low number is completely normal, even if the laboratory is reporting that it is below a normal range.
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D-dimer Normal Values D-dimer normal values refer to the normal range of D-dimer in the blood stream. People whose D-dimer levels are within the normal range will not likely face life-threatening situations that will result from abnormal D-dimer levels. Having normal D-dimer values are indicative that the body’s healing system by means of blood clotting is doing well.
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D-Dimer Fragment D-dimer, fibrin degradation fragment. This is a blood test to look for a substance called D-dimer. This test is used to rule out a blood clot. D-dimer is a protein fragment from the break down of a blood clot. Blood clots generally begin to slowly break down after they are formed, and this process releases D-dimer into the blood.
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Ester Definition and Examples Ester Definition: An ester is an organic compound where the hydrogen in the compound's carboxyl group is replaced with a hydrocarbon group. Examples: Ethyl acetate is an ester. The hydrogen on the carboxyl group of acetic acid is replaced with an ethyl group. Article. Chemistry.
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Toll-like receptor 5 forms asymmetric dimers in the absence of flagellin Asymmetric receptor dimers often contain two ligand-binding sites with different affinities for the ligand (Bae et al., 2010; Ullrich and Schlessinger, 1990).
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D-Dimer D-Dimer Does this test have other names? Fragment D-dimer, fibrin degradation fragment. What is this test? This is a blood test to look for a substance called D-dimer. This test is used to rule out a blood clot. D-dimer is a protein fragment from the break down of a blood clot.
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D-dimer Test A positive D-dimer result may indicate the presence of an abnormally high level of fibrin degradation products. It tells the doctor that there may be significant blood clot (thrombus) formation and breakdown in the body, but it does not tell the location or cause.
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Synthetic oil In chemistry, an ester is a chemical compound derived from an acid (organic or inorganic) in which at least one –OH (hydroxyl) group is replaced by an –O–alkyl group. Usually, esters are derived from a carboxylic acid and an alcohol.
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qPCR Assay Design and Optimization Because of their small size, primer-dimers usually melt at lower temperatures than the. desired product. Additionally, nonspeciﬁc ampliﬁcation may. result in PCR products that melt at temperatures above or. below that of the desired product.
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Case ReportElevated D-dimer is not always pulmonary embolism Serum D-dimer is elevated in several chest emergencies, including Acute Coronary Syndrome (ACS), Venous Thromboembolism (VTE) and Acute Aortic Dissection (AAD). Because of its simplicity and easy availability its use beyond the exclusion of VTE has grown in recent years.
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- If the d-Dimer test result is above normal, that does not mean that you have a blood clot because other factors (such as infection, inflammation, pregnancy, etc.) can increase the d-Dimer. A d-Dimer test result above normal means that further testing may be needed to see if there is a clot. In other words, a normal d-Dimer can virtually rule out a new blood clot, but an elevated d-Dimer will not confirm that a clot is there. There are instances in which a patient may have a new clot and not have an elevated d-Dimer, but these instances are rare (less than 5% of patients).
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D-dimer D-dimer (or D dimer) is a fibrin degradation product (or FDP), a small protein fragment present in the blood after a blood clot is degraded by fibrinolysis. It is so named because it contains two D fragments of the fibrin protein joined by a cross-link.[1]
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Causes of cancer Pyrimidine dimer Pyrimidine dimers are structures that form between two of four nucleotide bases that make up DNA: the nucleotides cytosine and thymine, which are members of the chemical family called pyrimidines.
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D-dimer From Wikipedia, the free encyclopedia. D-dimer (or D dimer) is a fibrin degradation product (or FDP), a small protein fragment present in the blood after a blood clot is degraded by fibrinolysis. It is so named because it contains two D fragments of the fibrin protein joined by a cross-link.
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- Why It Is Done. Doctors use the d-dimer test when a person might have a dangerous blood-clotting problem. Deep vein thrombosis, a condition in which a blood clot (thrombus) forms in the deep veins of the legs, pelvis, or arms. To learn more, see the topic Deep Vein Thrombosis.
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D-dimer Test D-dimer is normally undetectable in the blood and is produced only after a clot has formed and is in the process of being broken down. When there is significant formation and break down of blood clots in the body, the D-dimer blood level can rise. The D-dimer test measures the level in the blood. For a person who is at low or intermediate risk for thrombosis and/or thrombotic embolism, the strength of the D-dimer test is in its negative predictive value in a hospital emergency room setting. That means that a negative D-dimer test indicates that it is highly unlikely that a thrombus is present.