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For screening or testing for genetic diseases, see genetic testing. A genetic screen or mutagenesis screen is an experimental technique used to identify and select individuals who possess a phenotype of interest in a mutagenized population. [ 1 ] Hence a genetic screen is a type of phenotypic screen. Genetic screens can provide important ...
Screening, in medicine, is a strategy used to look for as-yet-unrecognised conditions or risk markers. [ 1 ][ 2 ][ 3 ] This testing can be applied to individuals or to a whole population without symptoms or signs of the disease being screened. Screening interventions are designed to identify conditions which could at some future point turn into ...
High-throughput screening (HTS) is a method for scientific discovery especially used in drug discovery and relevant to the fields of biology, materials science [ 1 ] and chemistry. [ 2 ][ 3 ] Using robotics, data processing/control software, liquid handling devices, and sensitive detectors, high-throughput screening allows a researcher to ...
Coaxial cable. A shielded cable or screened cable is an electrical cable that has a common conductive layer around its conductors for electromagnetic shielding. [1] This shield is usually covered by an outermost layer of the cable. Common types of cable shielding can most broadly be categorized as foil type (often utilizing a metallised film ...
Prenatal testing. To monitor maternal and fetal health and progression, as well as, detect fetal abnormalities during pregnancy. Prenatal testing is a tool that can be used to detect some birth defects at various stages prior to birth. Prenatal testing consists of prenatal screening and prenatal diagnosis, which are aspects of prenatal care ...
Electric-field screening. In physics, screening is the damping of electric fields caused by the presence of mobile charge carriers. It is an important part of the behavior of charge-carrying fluids, such as ionized gases (classical plasmas), electrolytes, and charge carriers in electronic conductors (semiconductors, metals).
Screening (tactical) Screening is a defensive security tactic in which a screening force consisting of a picket or outposts is used to hide the nature and strength of a military force, as well as provide early warning of enemy approach, impede and harass the enemy main body with indirect fire, and report on the activity of the enemy main body.
For all testing, both diagnoses and screening, there is usually a trade-off between sensitivity and specificity, such that higher sensitivities will mean lower specificities and vice versa. A test which reliably detects the presence of a condition, resulting in a high number of true positives and low number of false negatives, will have a high ...