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The technique of placing cells or tissue in a supporting medium so that thin sections can be cut using a microtome. The medium can be paraffin wax (P…

The technique of using FIXATIVES in the preparation of cytologic, histologic, or pathologic specimens for the purpose of maintaining the existing for…

The process by which a tissue or aggregate of cells is kept alive outside of the organism from which it was derived (i.e., kept from decay by means o…

The determination of the concentration of a given component in solution (the analyte) by addition of a liquid reagent of known strength (the titrant)…

An array of tests used to determine the toxicity of a substance to living systems. These include tests on clinical drugs, foods, and environmental po…

Experiments designed to determine the potential toxic effects of one-time, short-term exposure to a chemical or chemicals.

Experiments designed to determine the potential toxic effects of a long-term exposure to a chemical or chemicals.

Experiments designed to determine the potential toxic effects of a short-term (a few weeks) exposure to a chemical or chemicals.

Experiments designed to determine the potential toxic effects of mid-term (a few months) exposure to a chemical or chemicals.

Pleural-fluid biochemical profile consistent with a transudate.

Syphilis serodiagnosis employing as the antigen Treponema pallidum obtained from rabbit syphilis orchitis. Treponemes are kept alive for a few hours …

One of several skin tests to determine past or present tuberculosis infection. A purified protein derivative of the tubercle bacilli, called tubercul…

A cytologic technique for measuring the functional capacity of tumor stem cells by assaying their activity. It is used primarily for the in vitro tes…

Methods of comparing two or more samples on the same two-dimensional gel electrophoresis gel.

Centrifugation with a centrifuge that develops centrifugal fields of more than 100,000 times gravity. (McGraw-Hill Dictionary of Scientific and Techn…

Examination of urine by chemical, physical, or microscopic means. Routine urinalysis usually includes performing chemical screening tests, determinin…

Microscopic visualization and/or chemical analysis of the sediments in URINE.