ECG is an abbreviation for electrocardiogram.
The findings demonstrate a statistically systematic change from the status quo or the control group.
In the design of experiments, treatments [or special properties or characteristics] are applied to [or observed in] experimental units in the treatment group(s). In comparative experiments, members of the complementary group, the control group, receive either no treatment or a standard treatment.
Proof of concept
Def. a “short and/or incomplete realization of a certain method or idea to demonstrate its feasibility" is called a proof of concept.
Def. evidence that demonstrates that a concept is possible is called proof of concept.
The proof-of-concept structure consists of
- findings, and
Proof of technology
The objective of a proof of technology is to determine the solution to some technical problem, such as how two systems might be integrated or that a certain throughput can be achieved with a given configuration.
Def. "[a]n original object or form which is a basis for other objects, forms, or for its models and generalizations" is called a prototype.
Def. "[a]n early sample or model built to test a concept or process" is called a prototype.
Def. "[a]n instance of a category or a concept that combines its most representative attributes" is called a prototype.
Def. "[t]o test something using the conditions that it was designed to operate under, especially out in the real world instead of in a laboratory or workshop" is called "field-test", or a field test.
A "proof-of-technology prototype ... typically implements one critical scenario to exercise or stress the highest-priority requirements."
"[A] proof-of-technology test demonstrates the system can be used".
"The strongest proof of technology performance is based on consistency among multiple lines of evidence, all pointing to similar levels of risk reduction."
The diagram on the right shows the approximately proper locations to apply the adhesive electrodes for performing an electrocardiogram.
In a conventional 12-lead ECG, electrodes are placed on the patient's limbs and on the surface of the chest, the overall magnitude of the heart's electrical potential is then measured from twelve different angles ("leads") and is recorded over a period of time (usually ten seconds), thus the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle.
Def. a "visual output that an electrocardiograph produces" is called an electrocardiogram, or ECG, EKG.
EKG comes from the German term Elektrokardiogramm.
ECG - the AMA Manual of Style and – under its stylistic influence – most American medical publications use ECG instead of EKG.
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