RIA

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radioimmunoassay

 (RIA) [ra″de-o-im″u-no-as´a]
a sensitive assay method that can be used for the measurement of minute quantities of specific antibodies or any antigen, such as a hormone or drug, against which specific antibodies can be raised. An assay for a specific hormone uses antihormone antibody produced by injecting the human hormone into an animal, such as a rabbit, and hormone that has been labeled with a radioisotope. These are mixed with the assay specimen and the antigen (hormone) bound to antibody is separated from the unbound antigen by chromatography or other means. Because any hormone in the assay specimen competes with the radiolabeled hormone for antibody binding sites, the amount of hormone in the specimen is inversely proportional to the radioactivity of the bound fraction or directly proportional to the activity of the free fraction. This is the standard method for clinical laboratory measurements of hormones and is also used for therapeutic drug monitoring, drug abuse screening, and other laboratory tests.

RIA

Abbreviation for radioimmunoassay.

RIA

abbr.
radioimmunoassay

RIA

abbreviation for radioimmunoassay.

RIA

Abbreviation for radioimmunoassay.

RIA

radioimmunoassay.
References in periodicals archive ?
The report titled "The Economic and Societal Value of Rich Interaction Applications (RIAs) in India" found that each user of RIAs in India receives on average of USD 249 of consumer surplus annually.
IVM allows rich interaction with the visual information by means of providing learners with three toolkits: interactive diagrammatic maps, interactive solids, and query tools.
We have illustrated some of our results to date in conceptualizing and developing components for rich interaction.
New Delhi [India], Nov 16 ( ANI ): WIK, Germany's leading research and advisory institute for communications services and broadband India forum, a policy forum working towards the proliferation of broadband services in India on Thursday, unveiled a report on, "The Economic and Societal Value of Rich Interaction Applications (RIAs) in India".
They expect rich interactions and con- sistent experience with the companies they choose to shop with, no matter how or when they choose to get in touch.
The technology enables rich interactions that reduce customer effort and improve the experience while lowering costs.
The EFM is part of the broader Customer Engagement Optimization portfolio and focuses on improving a company s relationship with its customers through rich interactions, better processes and ensuring an optimized workforce.
Fonemine native apps are cloud-driven, secure and role-based with touch-optimized UI, rich interactions and device personalization enabling their users to find the "right information at the right time" anytime, anywhere.
In the future, I see mobile devices being used for quick transactions and tablets being used for more engaging experiences and rich interactions.
Joe Ong, Managing Director of Tamouh, said: "Our entire team looks forward to the rich interactions with participants of Cityscape Abu Dhabi.
Customers want prompt, accurate and rich interactions with the companies with which they do business," said David Sliter, general manager of the Industry Solutions Group at Microsoft.
Any significant actions take place outside Harmond Wilks' office (constructed by David Gallo as a tidy urban storefront fringed by decay), but the rich interactions between Harmond and Roosevelt, between Harmond and Barlow, and between Roosevelt and Sterling carry the weight of great drama.