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Cross-matching or crossmatching is a test performed before a blood transfusion as part of blood compatibility testing. Normally, this involves adding the recipient's blood plasma to a sample of the donor's red blood cells. If the blood is incompatible, the antibodies in the recipient's plasma will bind to antigens on the donor red blood cells.
Matching (statistics) Matching is a statistical technique that evaluates the effect of a treatment by comparing the treated and the non-treated units in an observational study or quasi-experiment (i.e. when the treatment is not randomly assigned). The goal of matching is to reduce bias for the estimated treatment effect in an observational-data ...
Direct democracy or pure democracy is a form of democracy in which the electorate decides on policy initiatives without elected representatives as proxies. This differs from the majority of currently established democracies, which are representative democracies .
Match fixing. In organized sports, match fixing (also known as game fixing, race fixing, throwing, or more generally sports fixing) is the act of playing or officiating a contest with the intention of achieving a predetermined result, violating the rules of the game and often the law. There are many reasons why match fixing might take place ...
Free kicks may be either direct or indirect, distinguished as follows: An attacking goal may be scored directly from a direct free kick, but not from an indirect free kick. Direct free kicks are awarded for more serious offences ( handball and most types of foul play – see below for a complete list), while indirect free kicks are awarded for ...
For example, in order to match an inductive load into a real impedance, a capacitor needs to be used. If the load impedance becomes capacitive, the matching element must be replaced by an inductor. In many cases, there is a need to use the same circuit to match a broad range of load impedance and thus simplify the circuit design.
Matching funds. Matching funds are funds that are set to be paid in proportion to funds available from other sources. Matching fund payments usually arise in situations of charity or public good. The terms cost sharing, in-kind, and matching can be used interchangeably but refer to different types of donations. [ 1]
The match-to-sample task has been shown to be an effective tool to understand the impact of sleep deprivation on short-term memory. One research study [9] compared performance on a traditional sequential test battery with that on a synthetic work task requiring subjects to work concurrently on several tasks, testing subjects every three hours during 64 hrs of sleep deprivation.