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  2. Alkali denaturation test - Wikipedia

    en.wikipedia.org/wiki/Alkali_denaturation_test

    The alkali denaturation test, also known as A or Apt test, is a medical test used to differentiate fetal or neonatal blood from maternal blood found in a newborn's stool or vomit, or from maternal vaginal blood.

  3. Alkaline lysis - Wikipedia

    en.wikipedia.org/wiki/Alkaline_lysis

    Alkaline lysis is often an initial step in molecular processes. A proper completion of alkaline lysis yields a pure bacterial plasmid. A plasmid is a circular DNA molecule found naturally in bacteria that replicates independently from chromosomal DNA. Plasmids can also less commonly be found in the other two domains: Archaea and Eukarya.

  4. Worst-case circuit analysis - Wikipedia

    en.wikipedia.org/wiki/Worst-case_circuit_analysis

    In addition to a circuit analysis, a WCCA often includes stress and derating analysis, failure modes and effects criticality and reliability prediction . The specific objective is to verify that the design is robust enough to provide operation which meets the system performance specification over design life under worst-case conditions and ...

  5. Accelerated life testing - Wikipedia

    en.wikipedia.org/wiki/Accelerated_life_testing

    Accelerated life testing is the process of testing a product by subjecting it to conditions (stress, strain, temperatures, voltage, vibration rate, pressure etc.) in excess of its normal service parameters in an effort to uncover faults and potential modes of failure in a short amount of time.

  6. Stress testing - Wikipedia

    en.wikipedia.org/wiki/Stress_testing

    The goal and objectives, the time frame, the stress test level and the total costs of the stress test are defined. Phase 2: Assessment, during which the stress test at the component and the system scope is performed, including fragility [12] and risk [13] analysis of the CIs for the stressors defined in Phase 1. The stress test can result in ...

  7. Contraction stress test - Wikipedia

    en.wikipedia.org/wiki/Contraction_stress_test

    A contraction stress test (CST) is performed near the end of pregnancy (34 weeks' gestation) to determine how well the fetus will cope with the contractions of childbirth. The aim is to induce contractions and monitor the fetus to check for heart rate abnormalities using a cardiotocograph. A CST is one type of antenatal fetal surveillance ...

  8. Northern blot - Wikipedia

    en.wikipedia.org/wiki/Northern_blot

    The expression patterns obtained under given conditions can provide insight into the function of that gene. Since the RNA is first separated by size, if only one probe type is used variance in the level of each band on the membrane can provide insight into the size of the product, suggesting alternative splice products of the same gene or ...

  9. Dye penetrant inspection - Wikipedia

    en.wikipedia.org/wiki/Dye_penetrant_inspection

    The test surface is cleaned to remove any dirt, paint, oil, grease or any loose scale that could either keep penetrant out of a defect or cause irrelevant or false indications. Cleaning methods may include solvents, alkaline cleaning steps, vapour degreasing, or media blasting. The end goal of this step is a clean surface where any defects ...

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