• A common method of amplifying target sequences of DNA in vitro by polymerase chain reaction (PCR) is described in this simplified yet accurate animation. (merlot.org)
  • You just viewed PCR polymerase chain reaction . (merlot.org)
  • [ 13 ] and some other tuberculids: These are now thought to be true cutaneous forms of tuberculosis and not id reactions because of the identification (by polymerase chain reaction) of Mycobacterium tuberculosis in lesions. (medscape.com)
  • Other reactions may have mechanisms of several consecutive steps. (wikipedia.org)
  • Here, we show how quantum computers can be used to elucidate the reaction mechanism for biological nitrogen fixation in nitrogenase, by augmenting classical calculation of reaction mechanisms with reliable estimates for relative and activation energies that are beyond the reach of traditional methods. (pnas.org)
  • Here, we show that a quantum computer can be used to elucidate reaction mechanisms in complex chemical systems, using the open problem of biological nitrogen fixation in nitrogenase as an example. (pnas.org)
  • We discuss how quantum computers can augment classical computer simulations used to probe these reaction mechanisms, to significantly increase their accuracy and enable hitherto intractable simulations. (pnas.org)
  • Chemical reaction mechanisms are networks of molecular structures representing short- or long-lived intermediates connected by transition structures. (pnas.org)
  • At its core, the detailed understanding and prediction of complex reaction mechanisms then requires highly accurate electronic structure methods. (pnas.org)
  • Symptoms of a hemolytic transfusion reaction most often appear during or right after the transfusion. (medlineplus.gov)
  • Blood samples from the recipient (person getting the transfusion) and from the donor may be tested to tell whether symptoms are being caused by a transfusion reaction. (medlineplus.gov)
  • Antihistamine tablets reduce the severity of allergic reaction symptoms such as rash, itching, and inflammation of the airways. (netdoctor.co.uk)
  • This is because a second wave of serious symptoms (called a biphasic reaction ) often happens. (kidshealth.org)
  • Morbidity results from symptoms of the id reaction and the acute onset of the primary eruption. (medscape.com)
  • If there are any signs of a reaction, the nurse and doctor will likely stop the infusion to assess you, your vital signs, and your symptoms. (cancer.org)
  • Advice and assistance on the management of serious adverse reactions for persons receiving rabies vaccines may be sought from the state or local health department or CDC. (cdc.gov)
  • Although VAERS is subject to limitations common to passive surveillance systems, including underreporting and reporting bias, it is a valuable tool for characterizing the safety profile of vaccines and identifying risk factors for rare serious adverse reactions to vaccines. (cdc.gov)
  • Local pain at the injection site was the most frequently reported adverse reaction occurring in 21-77% of vaccinees. (cdc.gov)
  • Could this be an adverse reaction to the Xanax or is it (probably) just coincidental? (drugs.com)
  • It could be adverse side effects, I had a similar reaction to Cymbalta (horrible stuff). (drugs.com)
  • The usual advice regarding adverse reactions to medicines is to stop taking the medicine and to contact your doctor or pharmacist immediately for further advice or treatment. (netdoctor.co.uk)
  • Your doctor may suggest an alternative antihistamine preparation and may feel your adverse reaction is severe enough to warrant a short course of corticosteroids (steroid) tablets such as prednisolone . (netdoctor.co.uk)
  • Because of the unknown prevalence of risk factors among today's population, precise predictions of adverse reaction rates after smallpox vaccination are unavailable. (cdc.gov)
  • The majority of adverse events are minor, but the less-frequent serious adverse reactions require immediate evaluation for diagnosis and treatment. (cdc.gov)
  • Agents for treatment of certain vaccine-associated severe adverse reactions are vaccinia immune globulin (VIG), the first-line therapy, and cidofovir, the second-line therapy. (cdc.gov)
  • Smallpox vaccine adverse reactions are diagnosed on the basis of clinical examination and history, and certain reactions can be managed by observation and supportive care. (cdc.gov)
  • Adverse reactions that might require further evaluation or therapy include inadvertent inoculation, generalized vaccinia (GV), eczema vaccinatum (EV), progressive vaccinia (PV), postvaccinial central nervous system disease, and fetal vaccinia. (cdc.gov)
  • In children as well as adults immunization can cause adverse reactions, even anaphylactic shock. (answers.com)
  • I have recently been compelled to stop using a throat spray because I had a strong allergic reaction to it (red rash, plus itching all over body). (netdoctor.co.uk)
  • An allergic reaction usually presents as a rash. (medhelp.org)
  • I can't think of anything else that could be triggering this reaction, and the rash is more extensive than I've seen in the past with non-drug interations, so for now I'll go along with the Doctor's (Cardiologist and GP) determination that this is a Norvasc drug-interaction. (medhelp.org)
  • Some examples of an allergic reaction to penicillin can include: -hives -rash -itchy skin -wheezing -swelling of the lips, tongue, or face The most serious allergic reaction to penicillin is an anaphylactic response, which can be life-threatening. (answers.com)
  • The classical discuss ions of a JH describe the presence of bacterial debris or toxins from anti-infective therapies that cause this reaction. (google.com)
  • Exclude reactions which contain ions. (nist.gov)
  • Some people are prone to a skin reaction called contact dermatitis . (www.nhs.uk)
  • There was a time, back in 1908 to 1910, when the skin reaction for tuberculosis too was highly valued. (dictionary.com)
  • Goodale begins with five drops of that dilution that just fails to cause a skin reaction . (dictionary.com)
  • I was also given Zyrtec for the skin reaction. (medhelp.org)
  • The kinetics (relative rates of the reaction steps and the rate equation for the overall reaction) are explained in terms of the energy needed for the conversion of the reactants to the proposed transition states (molecular states that corresponds to maxima on the reaction coordinates , and to saddle points on the potential energy surface for the reaction). (wikipedia.org)
  • In effect the active particle serves as a catalyst for the overall reaction of the propagation cycle. (wikipedia.org)
  • The chain length is defined as the average number of times the propagation cycle is repeated, and equals the overall reaction rate divided by the initiation rate. (wikipedia.org)
  • In an important group of structures, a group not formally involved in the overall reaction interacts with a carbonium ion centre to form an intermediate, which then reacts with the nucleophile to give a product of the same stereochemical configuration as the starting material. (britannica.com)
  • News about Fusion (Nuclear Reaction), including commentary and archival articles published in The New York Times. (nytimes.com)
  • Wagner-Meerwein rearrangement is a class of carbocation 1,2-rearrangement reactions in which a hydrogen, alkyl oraryl group migrates from one carbon to a neighboring carbon. (google.com)
  • In demercuration, the acetoxymercury group is replaced with a hydrogen in a stereochemically insensitive reaction known as reductive elimination. (wikipedia.org)
  • The Suzuki-Miyaura reaction is best described as a catalytic cycle where the catalyst is regenerated. (news-medical.net)
  • Heck coupling reaction of pthalides with different alkenes using Pd(Ac) 2 (Palladium(II) acetate) catalyst and TEA (Triethylamine) in dioxane solvent. (sigmaaldrich.com)
  • Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium [(P(NC 5 H 10 ) 3 ) 2 Pd(Cl) 2 ] has been reported as a cheap, air stable, but highly active catalyst with an excellent functional group tolerance for Heck reactions. (sigmaaldrich.com)
  • Some chain reactions have complex rate equations with fractional order or mixed order kinetics. (wikipedia.org)
  • The unimolecular reaction is characterized experimentally by first-order kinetics-i.e., by a rate that depends only on concentration of the substrate (and not the nucleophile), by the absence of effects of steric hindrance, by powerful facilitation of the reaction by the presence of electron -releasing groups attached to the reaction centre, and by variable, and often diagnostic, stereochemistry . (britannica.com)
  • 3 Questions regarding reaction kinetics- please help me out. (physicsforums.com)
  • Reaction' in the Netherlands, a prestigious retrospective exhibition, placing the kinetic art of yesterday in the context of the performative arts of today. (kunsthal.nl)
  • Dehydrogenative Heck reaction controlled by redox process of ferrocene affords planar-chiral ferrocene derivatives with excellent enantioselectivity. (sigmaaldrich.com)
  • The severe acute reactions are probably related to a massive response of the immune system to toxins. (google.com)
  • Id reaction, or autoeczematization, is a generalized acute cutaneous reaction to a variety of stimuli, including infectious and inflammatory skin conditions. (medscape.com)
  • Crum N, Hardaway C, Graham B. Development of an idlike reaction during treatment for acute pulmonary histoplasmosis: a new cutaneous manifestation in histoplasmosis. (medscape.com)
  • The reaction object represents a reaction , which describes a transformation, transport, or binding process that changes one or more species. (mathworks.com)
  • Each problem describes the starting material, the conditions of the reaction, and the product, followed by the reference to the original publication. (elsevier.com)
  • Progress in this field has been rapid recently, and has included the development of completely new techniques for including quantum effects in chemical reactions (including coupled proton-electron transfer), the application of rate theory to enzymes, and the development of efficient simulation techniques for treating very large systems. (rsc.org)
  • Purification of DNA from a PCR reaction is typically necessary for downstream use, and facilitates the removal of enzymes, nucleotides, primers and buffer components. (neb.com)
  • Other reaction components, such as enzymes, nucleotides, detergents, and primers either do not bind well or are removed during the wash steps. (neb.com)
  • New England Biolabs supplies a 10X reaction buffer with all of its enzymes. (neb.com)
  • It's important to remember that an infusion reaction is your body's immune response to a treatment. (cancer.org)
  • The elementary steps should add up to the original reaction. (wikipedia.org)
  • Propagation (may comprise several elementary steps in a cycle, where the active particle through reaction forms another active particle which continues the reaction chain by entering the next elementary step). (wikipedia.org)
  • Reaction to Newtown school killings - Candles burn next to a lighted tree at a makeshift shrine in Newtown, Connecticut, commemorating the victims of the mass shooting at Sandy Hook Elementary School on December 14, 2012. (cnn.com)
  • Reaction to Newtown school killings - Connecticut State Police block the road to Sandy Hook Elementary School during a moment of silence on December 21. (cnn.com)
  • Reaction to Newtown school killings - Children in Newtown, excluding Sandy Hook Elementary, return to classes on Tuesday, December 18, four days after the shooting at the elementary school. (cnn.com)
  • Reaction to Newtown school killings - Members of the human rights group Volunteers Against Crime and Corruption light candles showing the names of those killed during the shooting at Sandy Hook Elementary School, during a prayer vigil in front of the U.S. Embassy in Manila, Philippines on December 18. (cnn.com)
  • The deadly gun rampage at Sandy Hook Elementary School has provoked strong reactions from around the world. (cnn.com)
  • In the gas phase, it diffuses and overtakes the reaction front propagating in the liquid medium because its diffusion coefficient in the gas phase is considerably larger than that in aqueous solution. (springer.com)
  • The amplified DNA remains in the aqueous layer of the mixture, along with other reaction components (e.g., buffers, nucleotides and primers). (neb.com)
  • In practice, the mercury adduct product created by the oxymercuration reaction is almost always treated with sodium borohydride (NaBH4) in aqueous base in a reaction called demercuration. (wikipedia.org)
  • This step is the rate-determining step of the reaction, and, because it involves only a molecule of the substrate, the reaction is unimolecular. (britannica.com)
  • If a pure element combines with an ionic compound, a single displacement reaction may take place. (infoplease.com)
  • Portal inflammation may also be accompanied with bile extravasates, granulomas, purulent exudate, destruction of bile ducts, ductular reaction, fibrosis and may extravasate into the periportal liver parenchyma thus disrucpting the periportal limiting plate of hepatocytes. (luc.edu)
  • Asymmetric Mizoroki−Heck reactions of benzyl electrophiles using a new phosphoramidite as an effective chiral ligand have been reported. (sigmaaldrich.com)
  • Heck reaction of benzyl trifluoroacetate and 2,3-dihydrofuran phosphoramidite ligand affords 2-benzyl-2,5-dihydrofuran as major product in good yield and excellent stereoselectivity. (sigmaaldrich.com)
  • Likewise, it's often necessary for chemists to predict the chemical reactions that will take place when two chemicals are combined. (infoplease.com)
  • On Wednesday 24 April 2013, SCI's Young Chemists' Panel organised an event called Reaction Optimisation which was held at GlaxoSmithKline in Stevenage. (soci.org)
  • Reaction Commerce is fast, scalable and the only platform that is real-time reactive. (prweb.com)
  • If you ignore the safety instructions that come with the dye, you could put yourself at risk of a serious reaction. (www.nhs.uk)
  • The cross currents of how we use digital technology for different aspects of our lives have never been deeper - but the superficial grazing aspects - the 'surfing' for freebies, shiny objects and quick fix stimulation and reaction has hit new focus time lows and an all time high tsunami of light weight 'content' vying for consumption. (zdnet.com)
  • Concepts such as space, movement, vision and light punctuated the abstract art of the twentieth century, as a reaction to the scientific and technical advances of that age. (kunsthal.nl)
  • Reaction' also shows work by some of the movement's predecessors, including Giacomo Balla, Hans Richter, François Morellet and László Moholy-Nagy who were the first to try and express abstract and dynamic concepts of reality through painting, sculpture and film. (kunsthal.nl)
  • Musicians' reaction times to sensory stimuli may be better than those of non-musicians. (medicalnewstoday.com)
  • The latest study in this field asks whether musicality might improve reaction times - not just in relation to sight and sound, but also using tactile stimuli. (medicalnewstoday.com)
  • Exothermic - reactions that release energy to their surroundings (usually in the form of heat) oΔH (enthalpy) is negative - energy leaving system Endothermic - reactions that need to absorb heat from their surroundings to proceed. (slideshare.net)
  • Enthalpy of reaction at standard conditions (nominally 298.15 K, 1 atm. (nist.gov)
  • Oxymercuration followed by reductive demercuration is called an oxymercuration-reduction reaction or oxymercuration-demercuration reaction. (wikipedia.org)
  • Palladium (Pd)-catalyzed endo-selective Heck reaction of iodomethylsilyl ethers of phenols and aliphatic alkenols has been reported. (sigmaaldrich.com)