• strains
  • The test immunogen (C4-V3 peptides) is constructed from 4 sequences of the HIV-1 V3 gp120 loop shared by approximately 80% of North American HIV-1 strains. (clinicaltrials.gov)
  • Additional antigenic variants have been defined within several of the serotypes on the basis of reduced or nonreciprocal cross-neutralization between variant strains. (wikipedia.org)
  • virus
  • This study also found using immune response tests that birds and humans in the region appeared to have been exposed to the virus. (wikipedia.org)
  • enzyme
  • It has a higher sensitivity than other tests like hemagglutination and many commercial Enzyme immunoassay without compromising specificity. (wikipedia.org)
  • Ames test a strain of Salmonella typhimurium that lacks the enzyme necessary for histidine synthesis is cultured in the absence of histidine and in the presence of the suspected mutagen and certain enzymes known to activate procarcinogens. (thefreedictionary.com)
  • procedure
  • 1.1 This test method covers the procedure for determining the cement content of fresh soil-cement. (astm.org)
  • So if any of the following symptoms are experienced, a physician consultation is recommended immediately: Low grade Fever Lightheadedness or dizziness Wheezing or Shortness of breath Extensive skin rash Swelling of face, lips or mouth Difficulty swallowing or speaking Even though skin testing may seem to be a benign procedure, it does have some risks, including swollen red bumps (hives) which may occur after the test. (wikipedia.org)
  • reaction
  • Because Class F pozzolan may not contain any calcium hydroxide for reaction, this test method will not determine percentage Class F pozzolan in the mix. (astm.org)
  • association test one based on associative reaction, usually by mentioning words to a patient and noting what other words the patient will think of and give in reply. (thefreedictionary.com)
  • results
  • However, the test is relatively cumbersome and time intensive (few days) relative to EIA kits that give quick results (usually several minutes to a few hours). (wikipedia.org)
  • Reporting of test results in units other than SI shall not be regarded as nonconformance with this standard. (astm.org)
  • Patients with a head tilt (abnormal head posture) are 'not formally controlled by using a bite bar or chin rest' and are always tested with their head tilt and then without their head tilt The results leading on from the cover test will give you an indication of the type of deviation and which way you should hold your prism for the next stage of the test. (wikipedia.org)
  • 2. The examiner then holds the prism bar over the patients deviating eye, starting at a small strength prism, however, if the deviation on the cover test appeared to be large, a larger strength prism may be used to achieve results quicker. (wikipedia.org)
  • The new viral isolate was identified as a rhabdovirus based on images and measurements taken via transmission electron microscopy and biochemical test results. (wikipedia.org)
  • symptoms
  • While the symptoms resembled dengue fever, testing ruled out this and several other potential causes. (wikipedia.org)
  • Nevertheless, clinics in Brazil may not have adequate testing reliability as they rely on symptoms rather than PCR viral sequencing, which is expensive and time consuming, in many cases there may be conviction with other similar mosquito borne viruses. (wikipedia.org)
  • allergen
  • A microscopic amount of an allergen is introduced to a patient's skin by various means: Skin prick test: pricking the skin with a needle or pin containing a small amount of the allergen. (wikipedia.org)
  • Intradermic test: a tiny quantity of allergen is injected under the dermis with a hypodermic syringe. (wikipedia.org)
  • Patch test: applying a patch to the skin, where the patch contains the allergen If an immuno-response is seen in the form of a rash, urticaria (hives), or (worse) anaphylaxis it can be concluded that the patient has a hypersensitivity (or allergy) to that allergen. (wikipedia.org)
  • Further testing can be done to identify the particular allergen. (wikipedia.org)
  • In the prick, scratch and scrape tests, a few drops of the purified allergen are gently pricked on to the skin surface, usually the forearm. (wikipedia.org)
  • dependent
  • The quality of the result produced by this test method is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. (astm.org)
  • method
  • This test method is appropriate for soil-cement containing up to 55 % plus 4.75 mm (No. 4) sieve-size particles with a maximum particle size of 75 mm (3 in. (astm.org)
  • 1.2.1 The procedures used to specify how data are collected/recorded and calculated in this test method are regarded as the industry standard. (astm.org)
  • It is beyond the scope of this test method to consider significant digits used in analysis methods for engineering design. (astm.org)
  • alkali denaturation test a spectrophotometric method for determining the concentration of fetal (F) hemoglobin. (thefreedictionary.com)
  • done
  • This test is usually done in order to identify allergies to pet dander, dust, pollen, foods or dust mites. (wikipedia.org)
  • The test is done to assess allergies to drugs like penicillin or bee venom. (wikipedia.org)
  • patient
  • Before commencing the test, ensure the patient is sitting upright with their chin and head straight. (wikipedia.org)
  • Risk
  • Due to extreme biohazard risk, testing should be conducted under maximum biological containment conditions. (prweb.com)
  • order
  • It is important that an alternate cover test is performed correctly in order to ensure maximum dissociation as we are determining the total deviation size which includes both latent and manifest. (wikipedia.org)
  • capable
  • Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/ and the like. (astm.org)